2024-03-29T00:15:13Zhttps://shareok.org/oai/requestoai:shareok.org:11244/145952018-04-16T18:53:50Zcom_11244_1col_11244_10476
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Soumahoro, Souleymane
author
2015-05
Chapter 1 exploits the emergence of two de facto states in Côte d’Ivoire during the 2002-2010 political crisis to examine the effects of export tax reduction on the living standards of cocoa farming households. Combining both spatial and temporal variations in exposure to a set of dichotomous export tax policies, I find that farmers in low export tax districts significantly increased their consumption expenditures relative to farmers in high export tax districts. I also provide evidence that the transmission of border prices to local farmers is a relevant mechanism through which the reduction of trade barriers enhances cocoa farmers’ living standards.
Chapter 2 documents that contemporary political development in Africa is highly associated with the pre-colonial ethnic institutional background of the first national leaders. Using either direct measures of democracy and/or covariates of political participation from anthropological records, I show that the political legacy of the first African heads of states who inherited egalitarian and democratic norms from their ancestors has been autocracy. This statistical relationship is not only robust to an array of control variables including economic, geographic and historical fac- tors, but potential endogeneity concerns that may undermine its validity are also addressed. Finally, exploring the potential mechanisms at play, I provide evidence that the natural resource potential of certain countries may have diverted their first national leaders away from their ancestral institutional heritage.
Chapter 3 shows a strong and positive relationship between the ethnic affiliation of African leaders and satellite nighttime luminosity in the historical homelands of ethnic groups. Using a unique dataset on 630 ethnicities and 86 leaders from 48 African countries, I show that luminosity is on average 75% relatively higher in leaders’ ethnic homelands.
http://hdl.handle.net/11244/14595
Economics, General.
Three Essays in Political Economy of Development
oai:shareok.org:11244/16392019-11-13T23:17:02Zcom_11244_1col_11244_10476
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Smith, Cordell A.
author
1963
http://hdl.handle.net/11244/1639
United States Foreign relations China.
United States Foreign relations 1945-1953.
Political Science, International Law and Relations.
The Marshall Mission :
oai:shareok.org:11244/60192018-04-25T04:51:51Zcom_11244_1col_11244_10476
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Zhang, Lei.
author
2000
In the second part of the research, three additional mutants, S 128A, H 186A and N187A were characterized in the same manner as the K183 mutant enzymes. The decrease in the activity compared to the wild type enzyme is about 200-fold for the H 186A and N 187A mutant enzymes, but only 12-fold for the S 128A mutant enzyme. Dissociation constant for 6PG from the E:NADP:6PG complex (K6PG) is increased by around 6-fold for both S 128A and H 186A and 16-fold for N 187A. Product inhibition studies by NADPH give a dissociation constant for the E:NADPH complex (Kis) that is increased by 5- to 6-fold for the S 128A and H 186A mutant enzymes at nonsaturating 6PG. No significant change is found in Kis value for the N 187A mutant enzyme. The primary deuterium isotope effects decrease for S 128A and H 186A, and increase in the case of N 187A compared to those of the wild type enzyme. The kinetic data suggest that all of the three enzyme side chains are responsible for binding the substrates, and that both S 128 and H 186 play an important role in the decarboxylation process, while N187 facilitates the hydride transfer step.
6-Phosphogluconate dehydrogenase (6PGDH) catalyzes the reversible oxidative decarboxylation of 6phosphogluconate to ribulose-5-phosphate and CO2 with the concomitant reduction of NADP to NADPH. Site-directed mutagenesis was used to change K183 of sheep liver 6-phosphogluconate dehydrogenase to A, E, H, C, Q, R, and M to probe its possible role as a general base catalyst. Each of the mutant proteins was characterized with respect to its kinetic parameters at pH 7, and the pH dependence of kinetic parameters for the K183R mutant enzyme. The only mutant enzyme that gives a significant amount of catalysis is the K183R mutant. Its activity is decreased by about 3 orders of magnitude, and the general base pK is perturbed to a value greater than pH 9. All other mutant enzymes have rates that are decreased by about 4 orders of magnitude compared to the wild type enzyme. Data are consistent with the general base function of K183.
http://hdl.handle.net/11244/6019
Enzymes Synthesis.
Pentose phosphate pathway.
Proteins Research.
Dehydrogenases.
Chemistry, Biochemistry.
Dissecting the reaction mechanism of sheep liver 6-phosphogluconate dehydrogenase.
oai:shareok.org:11244/4242018-04-24T18:34:55Zcom_11244_1col_11244_10476
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Stearman, Scott Lee.
author
2002
The monograph continues by looking at how these two streams emerge from one single---albeit complex---commitment to a proto-scientific commitment to the observance of nature. It is this consistent, coherent, and widely cast observational activity that forms the basis of the Xenophanean revolution. The fifth chapter is an attempt to demonstrate the continuity between the scientific methodology of Xenophanes and ours today.
Initially the extant fragments relating to Xenophanes' epistemology or theology are translated with a brief commentary when a translation issue is paramount. Then a view of Xenophanes' epistemology is developed, based upon this textual exegesis and two millennia of scholarship. It is argued that Xenophanes is not the empiricist, rationalist, or sceptic that he is sometimes portrayed as being. Rather he best fits the model (indeed a mold he helped create) of a naturalistic fallibilist.
Xenophanes was the first ancient Greek to make explicitly philosophical statements about epistemology. He was also the first Pre-Socratic to attack traditional and popular religion, eventually forming a rudimentary natural theology. This monograph attempts to show the clear connection and mutual dependency of these two streams of thought. In the process of this demonstration, however, it is necessary to give an interpretation of both streams.
The same interpretive enterprise is attempted with his natural theology. A number of misunderstandings of Xenophanes' beliefs are laid aside and a "minimalist" vision of his theological convictions is developed. It is found that Xenophanes is not a committed monotheist, or monist, as has sometimes been taught. His philosophical razor trims excessive adumbrations and speculations, and trims theology of many of its traditional aspects.
In the end Xenophanes appears to be quite influential. This document ends by showing the evident appreciation that Socrates held for this thinker. It was primarily through Socrates that Xenophanes would extend his formidable ideas through centuries of western civilization.
http://hdl.handle.net/11244/424
Xenophanes, approximately 570 B.C.-approximately 478 B.C.
History, Ancient.
Philosophy, Ancient.
Theology.
Religion, Philosophy of.
Philosophy.
The epistemic origins of Xenophanes' natural theology.
oai:shareok.org:11244/42802018-04-24T18:43:12Zcom_11244_1col_11244_10476
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Kashmeeri, Mohammed,
author
1977
http://hdl.handle.net/11244/4280
Education.
Education, Higher.
A study of college and university goals in Saudi Arabia /
oai:shareok.org:11244/52862018-04-25T02:19:41Zcom_11244_1col_11244_10476
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Hwang, Been-kwei,
author
1984
Various econometric models of Taiwan have been constructed since 1964. All of these shared the same common shortcomings. Their periods of annual data were too short to maintain a satisfactory degree of freedom. Their estimators were determined by the ordinary least squares method. The models were highly demand-oriented. The theoretical framework of the models and the effects of exports and imports on economic development were barely discussed.
A disequilibrium model for Taiwan is also constructed for comparison in this study. This model confirms the results of the equilibrium model. Moreover, wage increases significantly reduce labor demand, but stimulate labor supply. The relationship between Taiwan's exports and the U.S. GNP is positive, but negative between the Taiwanese exports and the Japanese GNP.
A new equilibrium model of the Taiwan economy is formulated in this study. The primary objective of this study is to analyze the economy of Taiwan and determine useful policy implications. Another purpose of this study is to eliminate the weaknesses of previous models. In particular the data have been made current in an attempt to enlarge the degree of freedom. In order to take care of the simultaneous bias, the 2SLS and 3SLS methods are applied in the estimation procedure. A dynamic simultaneous model is introduced in which the approaches of IS-LM, AS-AD, multiplier analysis, business cycle, and policy experiments are utilized to enrich the findings.
The Taiwan equilibrium model is capable of predicting turning points and has a very good fit. It takes into account the important features of the economy of Taiwan. Exports are a major contributor to economic growth and employment. Monetary policy and/or fiscal policy actions cause inflation. Price stability is vulnerable to the price fluctuation of Taiwan's trading partners. Fiscal policy is more effective in Taiwan than monetary policy. Taiwan has a business cycle of about 16 years. The Okun's law and the Phillip's curve can be applied.
http://hdl.handle.net/11244/5286
Business Administration, General.
A dynamic simultaneous model of Taiwan :
oai:shareok.org:11244/27362018-04-23T23:15:32Zcom_11244_1col_11244_10476
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O'reilly, Patrick D.,
author
1970
http://hdl.handle.net/11244/2736
Mesons.
Physics, Elementary Particles and High Energy.
Particles (Nuclear physics)
The interactions of 16.2 BeV negative pions with emulsion nuclei /
oai:shareok.org:11244/3188342019-04-27T21:30:01Zcom_11244_1col_11244_10476
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2012
Urban areas experienced rapid changes in during the last century. With swiftly growing urban populations, the growth of urban areas has accelerated in the last couple of decades. Dealing with ¨Drapid¡¬ urbanization is an important concern in urban and spatial studies. The literature shows a wide variety of studies on the economic, social and cultural aspects of urban growth. Most recently, the concept of livability - quality of life - has been debated. This study attempts to measure of livability that is appropriate to the neighborhood scale. In this study, livability is measured with defined indicators: accessibility of public places (schools, health care centers, parks and gardens), availability of open spaces (green areas) and environmental quality (cleanliness of the city, rainwater management and safety). Old and new neighborhoods of Denizli-Turkey were selected as the study site. The research explores differences between old and new neighborhoods in developing cities, in case of livability based on selected indicators. 1029 surveys were conducted with residents of the study areas. People were asked about current conditions of their city and neighborhood, availability and quality of the public services and environmental quality related to study indicators. All results from the surveys were descriptively analyzed and spatially represented. Based on the results, there is no concentration neither in new or old neighborhood in terms of accessibility. New neighborhoods on the city edge have advantage of availability of green spaces and higher values of environmental quality.
https://hdl.handle.net/11244/318834
Urbanization--Turkey
Rural-urban migration--Turkey
EFFECTS OF RAPID URBANIZATION ON LIVABILITY IN TURKISH CITIES: A CASE STUDY OF DENIZLI
oai:shareok.org:11244/3193022019-04-27T21:40:04Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
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2012
The legacy of master piano teacher Marvin Blickenstaff (b. 1935) is documented in this study through an analysis of his philosophy and pedagogical style and of his contributions to the field of piano pedagogy. Blickenstaff's extensive career includes teaching piano to all ages for over fifty years, giving presentations to teachers both nationally and internationally since the later 1960s, and publishing writings on teaching and materials for students. His major professional positions have included a professorship at the University of North Carolina at Chapel Hill for ten years (1969-78) and at Goshen College for twenty-one years (1978-99), and presidency of the Board of Trustees of the Frances Clark Center for Keyboard Pedagogy since 2000.
The primary resources for this study were Blickenstaff's publications and presentations, recordings of his piano lessons and classes, interviews, and surveys. The principal investigator conducted six interviews with Blickenstaff and interviewed twenty-two of his colleagues and students. To span the breadth of Blickenstaff's career, thirty-seven additional students and thirty-six teachers were surveyed. The interviews and surveys revealed how Blickenstaff's professional works impacted individuals within the field of piano pedagogy and established his philosophy and teaching style. Twenty-one piano lessons, a small-group lesson, and two classes were observed in 2009 at his home studio in Pennsylvania and at the New School for Music Study in New Jersey. These lessons are excerpted throughout this study to validate and demonstrate the tenets of Blickenstaff's philosophy and his pedagogical strategies. Blickenstaff's output as a presenter was analyzed through his presentation notes and through videos of his workshops and masterclasses. The major publications that Blickenstaff coauthored are the Handbook for Teachers published in conjunction with the Celebration Series, and Music Pathways, a method for beginning pianists. In addition, Blickenstaff's articles in the journal Keyboard Companion were consulted.
The eight chapters of this study document Blickenstaff's career, philosophy, and pedagogical style. In the introductory chapter, the purpose and justification of the study is established. The methodology and research procedures are presented in chapter two along with a summary of related studies. Chapter three contains a biography of Blickenstaff that chronicles his significant professional activities. Blickenstaff's philosophy of music education is outlined and validated in chapters four, five, and six. Chapter four presents Blickenstaff's viewpoint on the definition of music, the teacher, and the student. In chapter five, Blickenstaff's foundations for music study are explored through an analysis of the value of music study and the qualities of the student-teacher relationship. His philosophy on the learning process is detailed in chapter six, which includes an examination of the learning environment and how humans learn. In chapter seven, Blickenstaff's pedagogical style is codified through a summary of his lesson content, teaching techniques, and style of communication. The final chapter addresses the research questions posed in chapter one and synthesizes his philosophy, pedagogical style, and contributions to the field of piano pedagogy into his legacy. The ten appendices include lists of his publications, articles, recordings, and presentations, as well as transcripts of all interviews with Blickenstaff and reproductions of the questionnaires administered to piano teachers and his students.
https://hdl.handle.net/11244/319302
Piano--Instruction and study
Piano teachers--United States--Biography
The Legacy of Master Piano Teacher Marvin Blickenstaff: His Pedagogy and Philosophy
oai:shareok.org:11244/48312018-04-24T22:42:39Zcom_11244_1col_11244_10476
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Wong, Peter Kwei-yen,
author
1980
This study was concerned with the development and improvement of analytical procedures using liquid chromatography with electrochemical detection for the determination of activity of tyrosine hydroxylase, tryptophan hydroxylase, and certain individual amines.
The developed methods exhibit sensitivity and selectivity comparable or superior to methods presently in use.
A simplified procedure for the determination of 5-hydroxytryptamine, 5-HT, has also been investigated. The analysis time is considerably shortened by eliminating the usual isolation step through the proper choice of homogenization conditions. Sample handling capability is, thus greatly increased.
The neurotransmitters, catecholamines and indoleamines have been investigated extensively during the recent past. A number of assay procedures have been reported for the study of the rate limiting, hydroxylating enzymes as well as the neurotransmitter levels.
The currently reported methods for the determinations of tyrosine hydroxylase and tryptophan hydroxylase focus on the improvement of chromatographic conditions, optimization of reaction parameters and minimization of blank levels.
http://hdl.handle.net/11244/4831
Chemistry, Analytical.
Development of methodology for the determination of catecholamines, indoleamines, and related hydroxylating enzymes.
oai:shareok.org:11244/9622018-04-25T06:19:23Zcom_11244_1col_11244_10476
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Furnish, Patricia Lee.
author
2005
His public life had been dedicated to improving the condition of Native people. Eastman worked with progressive reformers who, like himself, believed in the power of Christian civilization and democracy to improve the condition of Indians. These "Friends of the Indian" organizations abhorred massacres of Indians and the institutional disgrace that Indian reservations signified. During the Progressive Era 1890-1917, Eastman helped found a political organization of Native Progressive reformers, the Society of American Indians (SAI), in 1910. They came to know the political and racial power structure of the United States as it was shaped by two wars, the Spanish American War and World War I. The SAI pushed for assimilation with consent, a racial uplift created with Indian participation and with respect for Indians as human beings. With a lifespan of less than fifteen years, the SAI's anti-climactic implosion revealed the elusiveness of full citizenship and the dismal record of social reform during World War I.
This study examines the issues of cultural identity and rights of access to full participation in American society for American Indians. Leaders of the SAI pushed for Indian assimilation through U.S. citizenship, which is in one respect, a legally defined status and one that the federal government retained the constitutional power to grant. SAT leaders, however, were divided on many issues---policy, assimilation, and the proper path for the development of a viable, modern Indian identity. The official rhetoric of the SAI changed little over its thirteen years of activity. However, the philosophies of its key members did. As tribal members from across the country joined the SAI in an effort to form a pan-Indian "voice" on federal Indian policy, they found disagreement over the process of gaining citizenship for Indians. Issues of tradition versus acculturation challenged the SAI's philosophy of a unified agenda beneficial and representative of all citizen Indians in the United States. On both a philosophical and a personal level, leaders of the SAI had to confront their own issues of Indian identity and the stereotypes of Indians that influenced federal policy. (Abstract shortened by UMI.)
In 1890, the last spasm of Indian-U.S. military conflict at Wounded Knee convulsed Pine Ridge reservation. A Santee Sioux physician, Charles Eastman witnessed the massacre of approximately three hundred members of a Minneconjou Sioux band led by Big Foot, mostly women and children.
http://hdl.handle.net/11244/962
Sociology, Ethnic and Racial Studies.
Indians of North America Legal status, laws, etc. History 20th century.
Society of American Indians.
Indians of North America Cultural assimilation History 20th century.
History, United States.
Indians of North America Government relations 1869-1934.
"Aboriginally yours": The Society of American Indians and United States citizenship, 1890--1924.
oai:shareok.org:11244/39372018-04-24T17:07:23Zcom_11244_1col_11244_10476
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Malone, Harold Kent,
author
1975
http://hdl.handle.net/11244/3937
Biology, Microbiology.
Performance evaluation of bacteriological culture media /
oai:shareok.org:11244/3212018-04-24T11:53:15Zcom_11244_1col_11244_10476
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Mewes, John Jeremy.
author
2001
The potential for applying the anelastic vertical vorticity equation for dual-Doppler synthesis of the vertical wind field is explored. In particular, application of the vorticity equation as a weak variational constraint to retrieve the boundary condition field(s) is investigated. The Euler-Lagrange equations for a single boundary condition as well as a system of two opposing boundary conditions are presented. Since mass continuity is applied as a weak constraint during vertical velocity retrieval in the latter approach, a correction step to the horizontal wind fields is developed that ensures anelastic mass continuity is satisfied exactly in the final analysis.
The techniques are tested on ARPS simulations of the May 20, 1977 Del City supercell storm as well as a storm evolving in a typical dry microburst environment. Errors are introduced to the simulated radial wind observations, and the resulting analyses are compared against the traditional techniques that would most likely be applied in each of four data availability scenarios. These four scenarios were devised to address the scanning limitations of current operational and research radars. The results using simulated data indicate that the vorticity equation has the potential for significantly improving dual-Doppler analyses of the vertical velocity field in many common situations, and argue for the deployment of more rapid scanning research radars.
http://hdl.handle.net/11244/321
Environmental Sciences.
Winds Speed.
Winds Measurements.
Doppler radar.
Physics, Atmospheric Science.
On use of the anelastic vertical vorticity equation in dual-Doppler analyses of the vertical velocity field.
oai:shareok.org:11244/41122018-04-24T17:44:31Zcom_11244_1col_11244_10476
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Otuomagie, Robert,
author
1975
http://hdl.handle.net/11244/4112
Energy.
Reservoir oil pressure.
Engineering, Petroleum.
Analysis of pressure build-up in an infinite two-layered oil reservoir /
oai:shareok.org:11244/3323032021-12-14T16:24:32Zcom_11244_1col_11244_10476
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Gupta, Siddhant
author
2021-12
Ubiquitous low-level, marine stratocumulus clouds provide the largest contribution of all cloud types to the shortwave cloud radiative forcing. A cooling effect from small changes in low-level cloud properties due to aerosol-cloud interactions (ACIs) could partially offset the global warming due to increasing greenhouse gas concentrations in the atmosphere. A large marine stratocumulus cloud deck exists over the southeast Atlantic Ocean where the clouds are overlaid by biomass burning aerosols with instances of contact and separation between the aerosol and cloud layers. Biases in satellite retrievals of aerosol and cloud properties and the vertical distance between the aerosol and cloud layers have led to uncertainties in the regional estimates of ACIs and the effective radiative forcing due to ACIs (ERFaci). ERFaci remains the largest source of uncertainty in climate model estimates of Earth’s energy budget in future climate scenarios.
In this study, in situ data are used to quantify aerosol-induced changes in stratocumulus cloud properties and to evaluate satellite-based estimates of the aerosol-induced changes. Size distributions of aerosols and cloud droplets were sampled during the three phases of the NASA ObseRvations of Aerosols above CLouds and their intEractionS (ORACLES) field campaign using in situ probes onboard the NASA P-3B aircraft. Size distributions from vertical profiles of aerosol and cloud layers over the southeast Atlantic were used to estimate aerosol concentration (Na) along with cloud microphysical properties like droplet concentration (Nc), effective radius (Re), and liquid water content (LWC), optical properties like cloud optical thickness (), and macrophysical properties like liquid water path (LWP), cloud geometric thickness (H) and precipitation rate (Rp).
Across the ORACLES campaigns in September 2016, August 2017, and October 2018, 173 “contact” profiles had Na > 500 cm-3 within 100 m above cloud tops and 156 “separated” profiles had Na < 500 cm-3 up to 100 m above cloud tops. The average Nc, LWC, and for contact profiles were 87 cm-3, 0.02 g m-3, and 1.8 higher and Re was 1.5 m lower compared to separated profiles. These differences were associated with higher below-cloud Na and weaker droplet evaporation near cloud top in the presence of high Na immediately above cloud tops. Larger differences were observed between Nc and Re for contact and separated profiles in high Na boundary layers (108 cm-3 and 1.8 m) compared to low Na boundary layers (31 cm-3 and 0.5 m). A smaller decrease in humidity across cloud top during contact profiles led to a smaller decrease in median Nc and LWC near cloud top (25% and 12%) compared to separated profiles (33% and 18%).
Higher Nc and lower Re for contact profiles resulted in precipitation suppression with 50% lower Rp compared to separated profiles along with 20% lower precipitation susceptibility to aerosols (So). So depends on both Nc and Rp, and differences between So for contact and separated profiles varied with H due to the co-variability between changes in Nc and Rp due to droplet growth with height and increasing Na. Based on reanalysis data, contact and separated profiles had statistically similar meteorological conditions like surface temperature (To), lower tropospheric stability (LTS), and estimated inversion strength (EIS), on average.
For 67 contact and 82 separated profiles, in situ data were co-located with a retrieval from the Moderate Resolution Imaging Spectroradiometer (MODIS) onboard the Terra or Aqua satellite with a time gap of less than 1 hour. On average, the MODIS Re, , and Nc (11.4 m, 11.7, and 150.3 cm-3) were 1.7 m, 2.4, and less than 1 cm-3 higher than the in situ Re, , and Nc with Pearson’s correlation coefficient (R) = 0.78, 0.72, and 0.90, respectively. The 67 contact profiles had 103 cm-3 and 2.8 higher in situ Nc and with 2.2 m lower in situ Re compared to the 82 separated profiles. MODIS estimates of the differences in Re, , and Nc between contact and separated profiles were within 0.5 m, 0.7, and 5 cm-3 of the in situ estimates when profiles with MODIS Re > 15 m and MODIS > 25 were removed. Agreement between MODIS and in situ estimates of Re, , and Nc and the aerosol-induced changes in Re, , and Nc was observed due to low biases in MODIS retrievals which were consistent for contact and separated profiles.
The aerosol-induced changes in cloud properties quantified in this study could impact the stratocumulus-to-cumulus or closed-to-open cell transitions in the region. Future work should examine in-cloud aerosol samples from the counterflow virtual impactor inlet to examine the extent of entrainment mixing of aerosols into the cloud layer. Modeling studies should examine the impact of precipitation suppression on cloud lifetime and boundary layer dynamics. Model parameterizations of Rp should be adjusted to account for changes in the relationship between Nc, Rp, and H under different aerosol conditions. Future work should also be aimed at improving satellite-based estimates of the vertical displacement between the aerosol and cloud layers. Combined with MODIS retrievals, this would allow studies of ACIs in marine stratocumulus over longer timescales and larger domains than possible using in situ data alone.
https://hdl.handle.net/11244/332303
Atmospheric Sciences.
In situ and satellite-based estimates of aerosol-cloud interactions between biomass burning aerosols and marine stratocumulus clouds over the southeast Atlantic Ocean
oai:shareok.org:11244/37292018-04-24T16:24:42Zcom_11244_1col_11244_10476
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Sengenberger, David Lester,
author
1974
http://hdl.handle.net/11244/3729
Great Lakes Region (North America) Climate.
Climatic classification.
Physical Geography.
Climatic year regions of the Western Great Lakes states /
oai:shareok.org:11244/55442018-04-25T03:12:09Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
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Welp, Robert Louis.
author
1997
Cooperative learning groups have been the subject of study for nearly a century. The majority of the studies have focused primarily on either establishing the effectiveness of a particular method, or assessing the effectiveness of specific manipulations or methods within a general cooperative learning approach. No known research has sought to systematically identify the functions of effective cooperative learning groups and determine the relative contribution of these functions to achievement.
An analysis of the top twenty achieving groups indicates that approximately one third of these groups became somewhat more autocratic in the final time period. These groups were more likely to be polarized and less likely to have formal team leaders assigned specific responsibilities. The remaining two thirds had become more democratic, were not polarized, and were more likely to have a formal team leader.
This study investigates the role goal setting, feedback, and decision making functions within cooperative learning groups play in contributing to high achievement in ill-structured problem solving. The performance of group functions of seventy-seven project groups solving ill-structured problems from within a large southwestern university were assessed at three points in time during the life of the group. Results indicate that goal setting for the overall project and for individual assignments and use of feedback increased over time. The number of personal goals decreased over time. Group functions were predictive of achievement late in the life of the group, at the third time period. Group goal setting for individual assignments, the number of personal goals in the group, and the group's decision making style were found to predict twelve percent of the variance in group achievement. Group goal setting was positively related to achievement, while number of personal goals and a democratic decision making style were negatively related to achievement.
http://hdl.handle.net/11244/5544
Group work in education.
Group problem solving.
Goal (Psychology)
Education, Educational Psychology.
The relationship of group functions to achievement in cooperative learning groups performing ill-structured problem-solving.
oai:shareok.org:11244/51052018-04-25T01:03:09Zcom_11244_1col_11244_10476
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Anderson, Charles Austin,
author
1983
Much of the anthropological work on Middle American communities has generally typified local (community) informal law as "customary". The emphasis on only one type of dispute resolution agency obfuscates definitive conclusions in clarifying the complex juridical characteristics of Middle America. This complexity can be illuminated and made more lucid through a comparative analysis of de facto and de jure methods of conflict resolution. Therefore, this research was undertaken as an analysis and critique of the ethnographic literature in depth. These sources were treated as an ethnohistorian explores any historical documentation.
Ancillary to these points, in the areas of Middle America where governmental integration has been rapid and pervasive, the adoption of formal conflict resolution methods has been practically complete.
Through the utilization of the 1917 Mexican Constitution and the basic statutory law derived therefrom as a model, the thrust of the research is to demonstrate that, despite many contentions about standardized group or class practices or behavior patterns entering into decisions pertaining to the resolution of disputes, enacted statutory law also plays a vital role (more than many anthropologists are ready to admit) in the areas surveyed.
This exhaustive study has substantiated three basic points, namely: (1) Enough data was presented to support the hypothesis that the indigenous conflict resolution systems of Middle America have in measurable degree been adopted from, rather than adapted to, the Hispano-Roman derived systems of social control employed at the Federal and State levels. (2) The resolution of village conflicts through the utilization of formal judicial mechanisms is only one factor in influencing ethnic boundaries and the motivation and efforts to maintain a degree of ethnic autonomy are seen not merely as attempts to maintain separateness between local community and State; but, also, between local communities. (3) As one progresses or advances from the local levels to more remote areas of State control, little difference can be perceived in the degrees of adoption of de jure control mechanisms.
No attempts have been made to evaluate the relationships between the dispositions of recurrent conflict situations existing at the village level to ascertain whether or not the de facto conflict resolution is more functional than the official institutions (de jure) in a complex of cultures that are represented by the Nation-States of Middle America.
http://hdl.handle.net/11244/5105
Anthropology, Cultural.
The anthropology of law :
oai:shareok.org:11244/9672018-04-25T06:20:21Zcom_11244_1col_11244_10476
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Dana, Krista Lorrell.
author
2006
The purpose of this study is to explore how a military officer's wife, one foot on each meandering path, might navigate simultaneously her careerist and traditional wife roles. Specifically, this study asks the following: In their own words, how do Air Force officer wives define "career"? How does the military lifestyle impact the careers of these women? What obstacles and opportunities do they perceive? By what adaptive processes might career-oriented Air Force officer wives achieve both career satisfaction and commitment to their traditional military role? Finally, what does it mean to be a careerist-traditional wife, and how do such career trajectories proceed over time and multiple relocations?
Drawing on a symbolic interactionist perspective and on respondents' personal definitions of "career, " this research details the strategies, innovations, and explorations some career-seeking wives have employed over the course of their affiliations with the military. Data include 93 preliminary survey responses and 15 in-depth, oral life history interviews gathered from Air Force officer wives. Each interview respondent claims a careerist identity, participates in traditional military activities, and has experience living overseas. Each semi-structured, retrospective interview, then, explores the career trajectory of the respondent, the contextual obstacles and opportunities she perceives, the behavioral strategies and cognitive adjustments she employs, and the individualized identity meanings she attaches to her self-defined role. Analysis explores the military lifestyle as it is perceived by these careerist-traditional wives, the behavioral and cognitive adaptations they undertake, and the implications of their recollections. Substantive findings outline strategies for career-seeking spouses and suggest some future directions for advisement, policy, and research. Theoretical implications support and expand the principles of sociological identity control theory. Specifically, the experiences of these women indicate that individuals act to verify identity meanings not only through behavioral adjustments but through cognitive and definitional adjustments as well. As such, this research extends identity control theory. It clarifies both how role-identity definitions change over time at the individual level and, in the interactionist perspective, how those meanings are behaviorally negotiated at the social level, cumulatively affecting normative change.
http://hdl.handle.net/11244/967
Officers' spouses United States.
Sociology, Individual and Family Studies.
Women's Studies.
Military Studies.
United States. Air Force Military life.
Psychology, Social.
Air Force spouses United States.
Careers of their own: Role-identity negotiation among Air Force officers' wives.
oai:shareok.org:11244/16232019-11-13T23:17:11Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Mann, Mitchel,
author
1963
http://hdl.handle.net/11244/1623
Students, Transfer of.
University of Oklahoma Students.
Education, Administration.
The academic achievement of transfer students at the University of Oklahoma /
oai:shareok.org:11244/38672018-04-24T16:53:14Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Peterson, Jenny Boyer,
author
1974
http://hdl.handle.net/11244/3867
Psychology, Experimental.
Learning, Psychology of.
A developmental investigation of verbal and nonverbal methodologies in incidental learning /
oai:shareok.org:11244/41292018-04-24T17:48:03Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Legge, John William,
author
1976
http://hdl.handle.net/11244/4129
Mathematics.
Generalized convexity structures and their products /
oai:shareok.org:11244/3312732021-12-07T16:09:23Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Dewett, Dustin
author
2021
Seismic interpretation involves more than simply picking faults and horizons. It involves the interpretation of geologic features — their geometry, morphology, and the context of one group of rocks to another. It involves using well log information, memories from fieldwork, and photos from outcrops. It involves the understanding of salt mechanics, wave propagation, and signal analysis. It requires context and agile minds that can readily distinguish mud volcanoes from salt diapirs or multiples from reflectors. It is a difficult practice, and individuals spend their entire careers devoted to it.
Seismic attributes have always been considered by many to be an art form — a “dark art” — practiced by a chosen few. The proliferation of attributes to the workstation has not, unfortunately, proliferated the understanding of what the attributes mean or of what they are capable. Today, you will often find the seismic attribute specialists in quantitative interpretation or computational geophysics groups. The perspective of these specialists and of general interpreters can be quite different. They understand both physics and geology in different ways and at different levels.
As the discipline moves toward new technologies and the promises of new algorithms like convolutional neural networks and other forms of machine learning, we must remind ourselves that the technical understanding required of scientists and professionals grows accordingly. However, like the proliferation of seismic attributes (e.g., geometric and single-trace), machine learning approaches will feel underwhelming by those who fail to understand both the algorithms and what can reasonably be achieved.
This dissertation provides the reader with the foundational knowledge one requires to begin to understand seismic attributes and how they can be used with machine learning algorithms. I begin by establishing a common framework on which to communicate. I build upon that through the development of a procedure to enhance faults in seismic data using commercially available tools, and I end with the introduction of a simple, but effective, use of self-organizing maps, a simple machine learning algorithm.
https://hdl.handle.net/11244/331273
seismic attributes
seismic interpretation
machine learning foundations
taxonomy
Seismic Attributes: Taxonomic Classification for Pragmatic Machine Learning Application
oai:shareok.org:11244/49672018-04-24T23:38:04Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Coberg, Richard Lawrence,
author
1982
Abstract Not Available.
http://hdl.handle.net/11244/4967
Education, Adult and Continuing.
Information sources selected by adult students at two stages in the decision to attend an institution of higher education.
oai:shareok.org:11244/146242020-05-21T16:07:24Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Brevetti, Melissa
author
2015-05-08
This qualitative study explored moral experiences using personal interviews and oral history narratives gathered from adult participants. The purpose of the research study was to seek a deep understanding of students’ moral development in Roman Catholic schooling and the sustainability over time. The study focused on former parochial school students’ perspectives of their moral experiences as children in Catholic parochial schools of the 1950s and 1960s. Participants were adult volunteers, age fifty-five to seventy-five years old, who had attended Catholic parochial schools. They responded to open-ended questions about their memories of childhood events, such as how the moral experience affected them when it initially happened, and how they feel it has shaped them as adults. Data collection utilized interviews, which were coded for evidence of specific cardinal virtues.
The four cardinal virtues (prudence, justice, fortitude, and temperance) provided an organizational tool from which to understand moral beliefs and actions over time. One key result of this study demonstrated that the majority of participants learned to think independently and critically about the meaning of many tenets from the Catholic Church doctrine in relation to their own moral growth. Along with the development of independent thought, other values such as fairness, honesty, courage, and balance in life emerged as important factors in their moral formation. This work indicated that aspects of moral development were grounded in their parochial educational experiences and could be positively affected in situations that produced conflict or frustration. The latter supported findings in selected literature on moral development.
http://hdl.handle.net/11244/14624
moral development
cardinal virtues
Roman Catholic schools
oral history research
Roman Catholics Developing a Moral Compass: Parochial School Graduates' Experiences and Reflections of Living the Cardinal Virtues
oai:shareok.org:11244/16702018-04-16T20:48:23Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Reid, Bill G.
author
1963
http://hdl.handle.net/11244/1670
History, General.
Proposed American plans for soldier settlement during the World War I period /
oai:shareok.org:11244/347992020-05-21T05:02:15Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Ballard, Stephen
author
2016-05-13
From 2009 to 2014, school districts in Oklahoma faced the challenge of educating a growing population of students to high academic standards and increased accountability while state aid has been restricted to flat or negative levels annually. These circumstances have left many stakeholders concerned about the adequacy of education funding in Oklahoma.
There is no evidence of empirical research into the issue of school funding adequacy in Oklahoma between the years of 2005 and 2015. Therefore, this study presents new knowledge about how district spending correlates with student achievement as an indication of the level of Oklahoma education funding adequacy. The results and conclusions provide perceptions of the current financial condition to assist the reader in judging whether changes are necessary to improve fiscal support for schools.
This study incorporated the Successful School District model of analysis and binary logistic regression to discover how instructional and administrative expenditures related to high levels of academic achievement. The analysis compared two groups of school districts that were demographically similar yet displayed varying degrees of academic achievement in order to determine if there was a statistically significant difference in their spending.
http://hdl.handle.net/11244/34799
Education Finance and Education Policy
School Funding
Adequacy
An Examination Of Oklahoma Education Funding Adequacy And District Spending Efficiency
oai:shareok.org:11244/41632018-04-24T17:56:43Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Blakelock, Harold Herbert,
author
1976
http://hdl.handle.net/11244/4163
Education.
Education, Vocational.
A reliability and validity study of the fine visual motor screening inventory and the motor perceptual diagnostic inventory /
oai:shareok.org:11244/22802018-04-18T22:18:20Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Brinkman, James Warren,
author
1967
http://hdl.handle.net/11244/2280
Art Study and teaching.
Education, Teacher Training.
Teachers Training of.
Education Kansas Curricula.
The standardization of teaching combinations and teacher education programs for art teachers for the secondary schools of Kansas /
oai:shareok.org:11244/3187192019-04-27T21:27:10Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
2010
This research presents a study on biometrics classification using Factor Analysis (FA). As a multivariate statistical tool, factor analysis is useful for understanding the underlying structure in a dataset. Moreover, in addition to achieving an economy of the variables, the
"factors" or hypothetical constructs can provide an alternate yet succinct representation of the data. It is a method of determining, from an observable set of variables, a basic set of components that are common to all the observations. In this study, the loadings (or
weights) on the Factors are used to classify the data in alternate representation. In particular, we will examine and group the data according to three biometric features. In the first part, we demonstrate the capabilities of factor analysis to capture the gender of the individual. This will enable us to use FA as a gender classifier. The next study will show the use of an FA as a facial hair classifier. Given a group of individuals, we will be able to classify them as either having beards or not. Finally, in the last part presented in
this work, we will work on classifying the facial expressions of a group of Japanese women. Given all seven universal expressions per subject (two or three of each expression), we will use factor analysis to group each subject according to their expression. Furthermore, given an individual with a particular expression, we will use factor analysis as a biometric measure in the determination of the particular expression exhibited.
https://hdl.handle.net/11244/318719
Factor analysis
Biometric identification
Human face recognition (Computer science)
Biometric Classification with Factor Analysis
oai:shareok.org:11244/27172018-04-23T23:05:01Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Wright, Lawrence Wayne.
author
1969
http://hdl.handle.net/11244/2717
Coffee industry.
International Coffee Agreement (1962)
Economics, Agricultural.
An estimate of the effect of the 1962 International Coffee Agreement on revenue from green coffee exports to the United States of selected producing countries, 1963-1966 /
oai:shareok.org:11244/103482020-05-21T16:15:12Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Klinefelter, Katherine
author
2014-05-09
In the early part of the 20th century, technological advancements in machinery allowed the production of trumpet mouthpieces to become more consistent than ever before. Vincent Bach and his contemporaries improved upon the previous standards set by European mouthpiece designers such as Leopold August Schmitt. This document explores the ways in which current North American manufacturers Peter Pickett, Terry Warburton, Dave Harrison, John Lynch, and Mark Curry are improving upon designs of Bach and his contemporaries in accordance with innovations in current trumpet designs, such as modifications in bell weight, valve blocks, tuning slides, and longer leadpipes, and the needs of the modern trumpet player.
http://hdl.handle.net/11244/10348
Music.
MODERN INNOVATIONS IN AMERICAN TRUMPET MOUTHPIECE DESIGN
oai:shareok.org:11244/29442018-04-24T06:42:16Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Liu, Ching Lung,
author
1970
http://hdl.handle.net/11244/2944
Health Sciences, Pathology.
Transfer of immunity to Hymenolepis nana in mice with spleen cells or spleen cell fractions /
oai:shareok.org:11244/46892018-04-24T21:45:04Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Schornick, Herbert Michael,
author
1979
http://hdl.handle.net/11244/4689
Engineering, Sanitary and Municipal.
Energy.
Ozone oxidation of concentrated cyanide wastewater from electroplating operations at Tinker Air Force Base.
oai:shareok.org:11244/41452018-04-24T17:51:25Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
El-messidi, Kathy Groehn,
author
1976
http://hdl.handle.net/11244/4145
History.
History, United States.
Sure principles midst uncertainties:
oai:shareok.org:11244/18812018-04-17T21:55:55Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Manley, Frederick Harrison,
author
1965
http://hdl.handle.net/11244/1881
Geology.
Clay mineralogy and clay-mineral facies of the Lower Cretaceous Trinity group, southern Oklahoma /
oai:shareok.org:11244/340672020-05-21T16:29:08Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Ye, Xin
author
2016-05-13
Non-local muscle fatigue (NLMF) is a phenomenon that has been described and examined extensively in literature. Traditionally, interventions have been applied in the unilateral limb to examine the potential short-term “cross-over” fatigue and long-term “cross education” effects in the contralateral limb. More recently, an emphasis is placed on the examination of unrelated heterogonous muscle groups after fatiguing the unilateral muscle groups (e.g. fatiguing upper limb and examining the motor performance of distal and unrelated lower limb muscles, or vice versa), as evidence was shown that the motor performance could be impaired in the non-exercised muscles. PURPOSE: To examine the possible changes in the neuromuscular properties and motor control strategies of both the contralateral homogenous and non-related heterogonous muscles following fatiguing exercise interventions on the unilateral muscle groups. METHODS: Eighteen subjects voluntarily participated in this 5-visit investigation. After the first visit as familiarization, subjects went through 4 separate randomly sequenced experimental visits, during which fatiguing interventions and testing were applied on different limbs (fatigue the right forearm flexors and test the left forearm flexors; fatigue the right forearm flexors and test the left leg extensors; fatigue the right leg extensors and test the left forearm flexors; fatigue the right leg extensors and test the left forearm flexors). Maximal isometric strength, force fluctuations during submaximal contraction, as well as surface electromyographic (EMG) signals were collected before and after the fatiguing interventions. In addition, surface EMG signals from the submaximal contractions were decomposed into individual motor unit action potential trains, and linear regression analysis was used to examine the relationship between motor unit mean firing rate and recruitment threshold. RESULTS: There was a significant decrease in maximal isometric strength in the non-exercised forearm flexors, but not in the non-exercised leg extensors. Consistent with this finding, the force became less steady during submaximal contractions in the non-exercised forearm flexors. However, the decreased motor performance was not accompanied with a decline in the EMG amplitude or altered motor control strategies. CONCLUSIONS: Six sets of 30-s maximal isometric contractions performed in the right forearm flexors and right leg extensors induced non-local muscle fatigue in the non-exercised left forearm flexors, but not in the leg extensors. Due to non-local muscle fatigue, the subjects’ ability to maintain a steady constant force was impaired. Contradicting to the prevailing explanations of the NLMF, the EMG data from our study does not necessarily support the “central fatigue” mechanism, due to the lack of evidence of changes in EMG parameters and motor unit activity from the non-exercised biceps brachii. On the other hand, although the motor performance of the non-exercised left extensors was not affected by the fatiguing interventions, fatiguing upper body muscle vs. lower body muscle seemed to have differential effects on the motor unit firing behaviors from the non-exercised vastus lateralis. However, this difference was probably too small to induce significant changes in motor performance.
http://hdl.handle.net/11244/34067
Biology, Physiology.
Biology, Neuroscience.
Health Sciences, Rehabilitation and Therapy.
AN EXAMINATION OF NON-LOCAL MUSCLE FATIGUE IN UPPER AND LOWER LIMBS
oai:shareok.org:11244/3400082023-12-07T06:00:16Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Beattie, Alexandra
author
2023-12-15
This dissertation presents methods for evaluating and mitigating a relatively unexplored bias topic in recommendation systems, which we refer to as attribute association bias. Attribute association bias (AAB) can be introduced when leveraging latent factor recommendation models due to their ability to entangle model and implicit attributes into the trained latent space. This type of bias occurs when entity embeddings showcase significant levels of association with specific types of explicit or implicit entity attributes, thus having the potential to introduce representative harms for both consumer and provider stakeholders. We present a novel analysis method framework to help practitioners evaluate their latent factor recommendation models for AAB. This framework consists of three main techniques for gaining insight into sensitive AAB in the recommendation latent space: bias direction creation, bias evaluation metrics, and multi-group evaluation. Methods within our evaluation framework were inspired by techniques presented by the natural language processing research community for measuring gender bias in learned language representations. Additionally, we explore how this bias can be reinforced and produce feedback loops via retraining. Finally, we explore possible mitigation techniques for addressing said bias. Primarily, we demonstrate our methodology with two case studies that evaluate user gender association bias in latent factor recommendation. With our methods, we uncover the existence of user gender association bias and compare the various methods we propose to help guide practitioners in how best to use our techniques for their systems. In addition to exploring user gender, we experiment with measuring user age association bias as a means for evaluating non-binary AAB.
https://hdl.handle.net/11244/340008
Computer Science
Recommender Systems
Responsible AI
Machine Learning Evaluation
Sensitive Attribute Association Bias in Latent Factor Recommendation Algorithms: Theory and In Practice
oai:shareok.org:11244/38772018-04-24T16:55:18Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Smith, Richard Dowlen,
author
1972
http://hdl.handle.net/11244/3877
Management Study and teaching United States.
Business Administration, General.
Federal government United States.
A conceptual model of managerial training in the Planning-Programming-Budgeting System of the Federal Government and an evaluation of current training efforts /
oai:shareok.org:11244/3196552020-05-21T17:04:00Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Bark, Tracey
author
2019-04-30
Most discussions of the policy process begin with and focus on the legislative branch, as this is the institution most directly responsible for crafting policies. Many also bring the chief executive or interest group lobbyists into the equation through the study of executive orders and campaign contributions. In contrast, very few of these types of discussions mention the bureaucracy as an actor in this process. This project strives to rectify this oversight by investigating the role of bureaucratic agencies in directing public policy, most notably in the early stages of problem definition and agenda setting. In particular, this project views bureaucratic agencies as key providers of information on which legislation is based.
To support this argument, I draw on a number of academic literatures, including theories of attention dynamics, institutional friction, and higher education governance. At the nexus of these literatures lies the basis for the overarching theoretical argument made in this project: the influence of bureaucratic organizations on the policy process can be substantial, but is conditioned by the structural characteristics of the agency in question. This assertion is supported empirically by analyses of an original dataset drawn from the annual reports of higher education governance bodies and state legislation related to higher education in two archetypal states. The methodologies used include assessments of various distributional characteristics, correlations, and regression models.
The findings from these models demonstrate institutional structure can have a substantial impact on the agendas of bureaucratic organizations. A highly centralized organization is limited in its ability to attend to a broad array of substantive topics at once, resulting in a narrower and more volatile agenda. This in turn leads to greater difficulty in influencing legislative debates. A less centralized organization, however, is better able to maintain attention on a large number of issues simultaneously. This allows an agency to have a broader and more stable agenda, facilitating greater influence on subsequent bill introductions in the state legislature.
Overall, the results demonstrate support for the central hypothesis in that the decentralized organization (the Illinois Board of Higher Education) had tangible impacts on its state’s legislature while the centralized organization (the Kansas Board of Regents) did not. These findings deepen our understanding of the impacts of bureaucratic structure on agency outputs and suggest that bureaucrats can have a broader role in the policy process than often recognized through the information they provide to legislators. Additionally, this study connects theories of agenda setting and problem definition to the state level and produces a dataset for future exploration of similar questions.
https://hdl.handle.net/11244/319655
Bureaucracy
Higher Education
Public Policy
Agenda Setting
Bureaucracies and the Supply of Information in Higher Education Policy
oai:shareok.org:11244/3356992022-05-31T19:53:22Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Krantz, Cassidy
author
2022-05
The current study examined the treatment effects of a newly adapted in-home training program for families at risk of child abuse and neglect. In-home interventions for child abuse and neglect have proven effective for reducing risk in low to mid-risk families, but high-risk families are underserved and have a pattern of high recidivism post-treatment. This study compared the standard training (Services as usual; SAU) to the new program, SafeCare+ (SC+), for impact on three different predictors of risk: depression, social support, and access to resources. Subjects were assigned using a tie breaker regression discontinuity design (LTBRDD) which allowed for experimental and ethical outcomes. Multilevel piecewise growth modeling was employed to capture pre-treatment, post-treatment, and follow-up data nested within subjects so that differences in treatment, assignment method, and change in time could all be modeled. Significant moderator effects of treatment on slope in two of the three outcomes, depression and social support, supported the hypothesis that SC+ recipients experience greater positive change in risk factors than SAU recipients. This significant treatment effect on slope also indicated a continued growth from post-treatment to follow-up, supporting the efficacy of SC+ to not lead to high recidivism. Due to the complexity of the design, there is not much in the literature to guide analytic procedures for LTBRDD, so future research should test, compare, and validate different analytic methods to make this design more approachable.
https://hdl.handle.net/11244/335699
Hybrid Regression Discontinuity Design
Child Abuse and Neglect
Multilevel Piecewise Growth Modeling
Modeling the outcomes of a longitudinal tie-breaker regression discontinuity design to assess an in-home training program for families at risk of child abuse and neglect
oai:shareok.org:11244/4712018-04-24T22:07:03Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Shevitz, Amy Hill.
author
2002
In most small towns, the dominant Jewish institution was the synagogue, whose activities included mutual aid, philanthropy, and Jewish education. In the mid-nineteenth century, the Ohio Valley was the center of a movement for an Americanized Reform Judaism. Small Jewish communities there played a vital role in constructing Reform Judaism and its institutions. Jews saw themselves---and were seen---as simultaneously similar and different. Emphasizing shared values and interests, small town Jews affirmed the notion of "progress" central to small-town boosterism.
The mass immigration of Eastern European Jews (1880--1920) coincided with new economic opportunities in some small Ohio River towns. The immigrants replenished the population of small Jewish communities, even as their integration created challenges. In the 1920s and 1930s, Jewish population and institutional strength reached their peak in most of the small towns. But from the 1950s through the 1990s, this situation was increasingly unsustainable. Small Jewish communities confronted population loss and the aging of their remaining constituents. In towns all along the Ohio River, congregations were forced to merge or even to disband.
The Ohio River Valley was the center of the Trans-Appalachian West. Jewish merchants and land investors operated there during the colonial and early national eras. In the 1820s and 1830s, Jews began to settle permanently; in 1824 the first synagogue was organized in Cincinnati. Though the Valley moved beyond its frontier stage by 1825, it was still a Jewish frontier, a place of contact between the old and the new. The diversity of religious groups in the Valley made it the first testing-ground for religious pluralism in America.
The Ohio River Valley's Jewish communities were built by immigrants from Central Europe in the 1830s--1860s. Jewish migration patterns were linked to the growth of commerce in the Valley and to similar European background. Jews created networks of business, social, and religious support in small towns throughout the Valley.
http://hdl.handle.net/11244/471
History, United States.
Religion, History of.
Jews Ohio Ohio River Valley History.
Sociology, Ethnic and Racial Studies.
Jews United States History.
Streams: Small Jewish communities on the banks of the Ohio.
oai:shareok.org:11244/29962018-04-24T09:36:50Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Nolte, Sherry Lynne,
author
1970
http://hdl.handle.net/11244/2996
Education, General.
Reading (Elementary)
Television programs.
A comparison of reading levels of seventh grade students and television preferences /
oai:shareok.org:11244/40622018-04-24T17:33:45Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Yim, Tae Bin,
author
1975
http://hdl.handle.net/11244/4062
Refuse and refuse disposal Korea Seoul.
Factory and trade waste Korea Seoul.
Energy.
Environmental Sciences.
Solid waste and sewage sludge management for the city of Seoul, Korea /
oai:shareok.org:11244/3185312019-04-27T21:22:45Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
2010
Microemulsions are thermodynamically stable dispersions of oil and water stabilized by a film of surfactants and/or co-surfactants. They have numerous applications in food, oilseed extraction, drug and cosmetic delivery, enhanced oil recovery, biofuels, etc. Microemulsion formation of vegetable oils at ambient conditions (temperature and pressure) and without the addition of co-oil and/or alcohols is challenging at best. Undesirable phases, such as macroemulsions, liquid crystals and sponge phases, are often encountered when formulating these microemulsions. The goal of this dissertation is to formulate vegetable oil microemulsions using a novel class of surfactants, called extended-surfactants combining with hydrophilic/hydrophobic linker system, and to explore their uses in oilseed extraction and bio-renewable fuel applications. Extended-surfactants are a relatively new type of surfactant with propoxylate (PO) and/or ethoxylate (EO) groups inserted between the hydrophilic head and the hydrophobic alkyl chain of the surfactant molecule. This unique structure of extended-surfactants enables them to produce ultralow interfacial tension with vegetable oils at ambient condition. Environmentally friendly vegetable oil microemulsions were successfully formed without the addition of co-oil/alcohol at ambient temperature. These microemulsions are particularly useful in food, drug and cosmetic applications. Owing to the ultralow interfacial tension reduction between the vegetable oil and aqueous extended-surfactant solution at relatively low surfactant concentration, we have demonstrated that the aqueous extended-surfactant-based method is a viable alternative for vegetable oil extraction as in batch study. The oil quality produced from the aqueous extended-surfactant based method was found to be comparable or even superior to that obtained from hexane-based extraction. Next, we have designed and investigated a semi-continuous pilot-scale study of the aqueous extended-surfactant-based method for vegetable oil extraction. The total oil recovery after two extraction stages was approaching the result obtained from the batch study; however, the free oil recovery was lower. We have shown that the aqueous surfactant based method for oilseed extraction is superior to that of aqueous extraction method and enzyme-assisted extraction method. The last part of the dissertation demonstrated the use of reverse micellar microemulsions of vegetable oil/diesel blend as an alternative to diesel fuel. With appropriate surfactant and co-surfactant systems, we were able to formulate canola and algae/diesel blend microemulsion fuels with fuel properties such as viscosities, cloud points and pour points that satisfy the ASTM standards. The global CO pollutant and radiation emissions of all formulated microemulsion fuels were superior to DF and biodiesel. NOx emissions were lower in the blend containing no nitrate additives, but were higher than DF in the presence of nitrate additives. Thus, these results show that microemulsification is a viable technology for producing biofuels without chemical reactions and that fuel properties can be adjusted via formulation variables.
https://hdl.handle.net/11244/318531
Vegetable oils
Emulsions
Surface active agents
Biodiesel fuels
Biomass energy
Formation and Characterization of Vegetable Oil Microemulsions and Their Application in Oilseed Extraction and Biofuel
oai:shareok.org:11244/509172020-05-21T16:23:16Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Hime, Shawn
author
2017-05
ABSTRACT
The purpose for conducting this study was to examine the extent to which students in districts that have moderate or significant levels of capital funding through building and bond funds are placed at a relative resource advantage compared to students in districts with fewer funds from these two sources. Additionally, the study examines the extent to which crossover funding impacts the equity of current education fiscal support. To accomplish this purpose three research questions were considered:
The first research question asked, were there statistically significant differences in resources among Oklahoma school districts with low, moderate, or high levels of capital revenues derived from building fund and bond yields during fiscal year 2016? An Analysis of Variance (ANOVA) was used to answer research question 1. The conclusions from question 1 include:
• the ability to support capital expenditures appears to have a meaningful effect on current expenditure levels and
• districts that are able to support relatively higher levels of capital expenditures are able to support significantly higher levels of average teacher salaries.
The second research question asked, what were the effects of crossover funding on the resource accessibility of the Oklahoma education finance system during fiscal years 2012-2016? The conclusions for research question 2 include:
• current expenditures maintained a relatively high level of resource accessibility among districts and
• capital expenditures demonstrated a relatively low level of resource accessibility throughout the distribution.
Research question 3 asked, what were the effects of crossover funding on the wealth neutrality of the Oklahoma education finance system during fiscal years 2012-2016? The Gini Coefficient, McLoone Index, and Coefficient of Determination were used to ascertain the level of wealth neutrality of the indicated data. The conclusions for research question 3 include:
• Current expenditures were highly wealth neutral, again indicating that the state funding formula is functioning accordingly and
• capital expenditures were not wealth neutral, across the distribution of school districts.
http://hdl.handle.net/11244/50917
School Finance
Oklahoma School Funding Equity
Capital Equity
Current Per Pupil Expenditures Equity
THE IMPACT OF THE INEQUITY OF CAPITAL IMPROVEMENT REVENUE ON THE EQUITY OF CURRENT EDUCATIONAL EXPENDITURES IN OKLAHOMA SCHOOLS
oai:shareok.org:11244/3189822019-04-27T21:33:02Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
2009
Despite the widespread use of the term calling in scholarly and popular literature, there has been limited empirical research on the topic. Most of the current literature on the topic is theoretical and conceptual in nature. The current study of 392 adults was designed to explore the psychometric properties of a newly developed instrument entitled The Calling Questionnaire (TCQ). This instrument was developed to assess three dimensions of calling: work, family, and social. Item analyses were conducted in order to derive three homogeneous scales representing work (TCQ-Work), family TCQ-Family) and social (TCQ-Social) dimensions of calling. Internal consistency reliabilities for these scales were high: TCQ-Social (α = .93), TCQ-Family (α = .93), and TCQ-Work (α = .93). The correlation between the TCQ-Work and the TCQ-Social scales was relatively high (r = .74), while remaining correlations were in the moderate range. A principal axis factor analysis (PAF) with oblimin rotation resulted in a three-factor solution accounting for approximately 44% of the variance. The three-factor solution fit the data well, as the three factors extracted reflected the respective dimensions theorized. Correlations between factor scores on the three TCQ dimensions and TCQ scale scores were very high: Social (r = .98); Family (r = .98); and Work (r = .97). Preliminary evidence for validity of the three calling scales was found in their relationships with measures of civic responsibility, family commitment, and job satisfaction, respectively. Correlations of TCQ scales with a measure of social desirability ranged from .18 - .32.
https://hdl.handle.net/11244/318982
Vocation--Testing
Vocation
Development of The Calling Questionnaire
oai:shareok.org:11244/45872018-04-24T21:20:07Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Olson, Dorothy Ellis,
author
1979
http://hdl.handle.net/11244/4587
Education, Home Economics.
Nutritional knowledge, attitudes, and beliefs of selected older adults :
oai:shareok.org:11244/35532018-04-24T15:46:39Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Fuentes, Pedro Antonio,
author
1973
http://hdl.handle.net/11244/3553
Psychology, Clinical.
Brain-damaged children.
Minimal brain dysfunction syndrome :
oai:shareok.org:11244/23352018-04-23T19:36:07Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Oei, Gek Lien,
author
1968
http://hdl.handle.net/11244/2335
Serum.
Glycoproteins.
Blood plasma.
Chemistry, Biochemistry.
Chemical studies of bovine transferrin /
oai:shareok.org:11244/3187892019-04-27T21:28:46Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
2010
Carter Pann is an award-winning composer of music for a variety of mediums and currently serves as Assistant Professor of Composition and Theory at the University of Colorado at Boulder. Pann's Four Factories, commissioned by the University of North Carolina at Greensboro Wind Symphony and completed in 2006, is a fifteen-minute composition written in four movements for large wind symphony that has been performed widely by leading college and university bands. Inspired by a reading of Ayn Rand's The Fountainhead and the music of George Antheil, the movements of Four Factories evoke images of industrial machinery through programmatic effects, use of dense orchestration, driving rhythms, glissandi, and percussion instruments such as siren, wood blocks, and brake drum or anvil.
This document explores Carter Pann's Four Factories through musical analysis enlightened by personal interviews with the composer. Basic biographical information about the composer is included along with an analysis and discussion of each movement. Interview transcripts, a selected list of Pann's works, and the composer's biography appear in appendices. Insight into Four Factories' characteristics presented in this study promotes an appreciation of Carter Pann's compositional methods, an understanding of the work, and serves as an aid to musicians in its performance
https://hdl.handle.net/11244/318789
Music
Carter Pann's Four Factories for Wind Symphony: An Analysis and Discussion
oai:shareok.org:11244/3452018-04-24T14:33:31Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Gibson, Barbara A.
author
2001
Hawai'i Hawai'i Volcanoes National Park and surrounding regions on Hawai'i Hawai'i Island were chosen for the research site because the basaltic volcanism taking place is significant, and relevant data concerning many environmental variables are readily available. Specifically, changes to spatial and temporal trends in precipitation and surface temperature as well as negative impacts to vegetation health due to volcanic emissions (vog) from Kilauea Volcano are investigated using exploratory statistics, a geographical information system (GIS), and remote sensing techniques. Results were inconclusive concerning possible vog impacts to vegetation health; but the study's findings do support the hypothesis that the vog is influencing both rainfall and temperature trends and patterns for Hawai'i Hawai'i Island.
The purpose of this research is to analyze the direct and indirect impacts of gases produced by basaltic volcanism on interactions between environmental systems. Related studies of natural hazards have been performed involving explosive, composite volcanic eruptions, including the Mt. St. Helens, El Chichon, and Mt. Pinatubo eruptions to determine if they contributed to global cooling among other environmental impacts. Unlike these previous studies that emphasized impacts of volcanic gases in the stratosphere, this research will examine the possible long-term effects on Hawai'i Hawai'i Island's environmental system due to sulfur gases (and resulting sulfate aerosols) released by a non-explosive eruption into the troposphere. Although basaltic events may not be as dynamic as composite eruptions, they can eject significantly greater amounts of sulfur into the atmosphere than a more silicic magma of the same volume. This is important because changes in environmental factors have been attributed to a larger than normal presence of sulfur compounds in the atmosphere.
http://hdl.handle.net/11244/345
Physical Geography.
Hawaii Environmental conditions.
Plant health.
Earth temperature Effect of volcanic eruptions on.
Volcanic gases.
Environmental Sciences.
Volcanoes Hawaii.
Geotechnology.
A geotechniques-based exploratory investigation of vog impacts to the environmental system on Hawai'i island.
oai:shareok.org:11244/155192020-05-21T15:06:50Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Thomas, Jenna
author
2015
The current studies test the ethical behavior of compartmentalized and integrative individuals in either a neutral context or one which tempts participants via ego depletion. Previous research links a compartmentalized self-structure to less ethical behavior in neutral contexts (Showers, Thomas, & Grundy, 2015). Consistent with previous results, compartmentalization was positively associated with cheating within a neutral non-depletion condition. However, integration was positively associated with cheating in the tempting context created by ego depletion. Additional findings show that the positive association between integration and cheating was limited to integrative individuals who also reported a relatively negative self-concept (Study 1) or high self-control (Study 2). Although integration is associated with more ethical behavior under neutral circumstances, the current results suggest that integrative individuals may be especially likely to behave unethically in tempting situations. These results are consistent with the interpretation that ego depletion may exert an ironic effect on integrative individuals because they avoid unethical behavior under neutral circumstances and therefore have little experience resisting temptation (cf. Imhoff, Schmidt, & Gerstenberg, 2014).
http://hdl.handle.net/11244/15519
Psychology, Social.
Ironic Effects of Ego Depletion
Self-Structure
Ethical Behavior
Dishonesty and the Self: Ironic Effects of Ego Depletion
oai:shareok.org:11244/104902020-05-21T16:28:35Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Martin, April
author
2014
This dissertation makes an exploratory comparison between two semantics models, Latent Semantic Analysis (LSA) and a newly introduced HiMean model based on the HyGene architecture, in a medical decision-making context. Emphasis is placed on using real-world, human decipherable input to produce rational diagnoses. Base rate information is manipulated as a proxy to expertise or learning in different information environments, and outcomes on decision measures are examined. Model performance in terms of correct probe or query identification, alternative hypothesis generation, probe degradation resilience, probability judgments, and diagnostic capability is evaluated. Multidimensional scaling is also employed to investigate two-dimensional projections of the models’ respective semantic spaces. Experimental outcomes reveal that both the LSA and HiMean models, as well as HiMean variants perform well in a variety of conditions. The models produce performance tradeoffs between each other in terms of accuracy, judgment calibration, and robustness to probe error, though not in diagnostic capability. The models are demonstrated to be capable of utilizing non-trained data and producing identification accuracies up to 80%. Generally, both LSA and HiMean prove to be capable decision architectures with a wide variety of potential applications. Some thought is given to future work dedicated to a multi-agent decision system which capitalizes on the strengths of both models.
http://hdl.handle.net/11244/10490
Psychology, Cognitive.
HiMean: A HyGene Approach to Semantic Analysis in a Medical Decision-Making Task
oai:shareok.org:11244/133882020-05-21T16:00:47Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Hosseini, Seyed Hossein
author
2014
In this dissertation we provide a novel estimation framework designed and structured on duality theory for estimation of some key parameters in electricity markets. Specifically, the framework uses financial transmission right (FTR) auction outcomes such as clearing prices and quantities to estimate implicit parameters of the underlying optimization problem such as power transfer distribution factors (PTDF) without the need to know the auction bid/offers. The application of the proposed framework is not limited to electricity markets and can be used in any optimization problem with similar characteristics. We show successful estimation of parameters by simulating the proposed method on small systems and on a large power system extracted from actual US eastern interconnection network model. We also provide discussion on special estimation cases and proposed methods to address them, and future works to improve the algorithm and applicability of the framework.
http://hdl.handle.net/11244/13388
Engineering, Electronics and Electrical.
REVEALING ADDITIONAL INFORMATION ABOUT ELECTRICITY MARKET UNDERLYING POWER SYSTEM USING POWER SYSTEM PRINCIPLES AND PUBLISHED MARKET RESULTS
oai:shareok.org:11244/543462020-05-21T16:23:03Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Lin, Peihui Jr
author
2018
The resilience of a community is determined by its ability to withstand and recover from disruptions due to natural or manmade hazards. While a consensus has developed in disaster-related research in recent years that community infrastructure should be designed, managed and regulated to achieve community-specific resilience goals, there is currently no integrated source of quantitative tools and measurement technologies to support risk mitigation decisions of building owners, city planners, policy makers and other community stakeholders in a coordinated and risk-informed manner.
The on-going efforts in the NIST-funded Center for Risk-based Community Resilience Planning (CRCRP) are aimed at developing a comprehensive computational platform, named IN-CORE, which integrates science-based models of community socio-economic systems and supporting interdependent physical infrastructure (i.e. building portfolios, transportation infrastructure, energy, water/wastewater, and communication networks) in several distinct modules, with an ultimate goal of supporting community risk mitigation decisions and optimizing resilience planning activities. This dissertation work provides the essential components of the IN-CORE module on Community Building Portfolio Resilience Analysis.
This work contributes to the state of the art of resilience assessment of community building portfolios in several aspects. First, a new building portfolio functionality metric (BPFM) is proposed, which is a measureable, scalable, and actionable indicator of a building portfolio’s capacity to respond and recover from a hazard event. The BPFM enables the resilience of a building portfolio to be assessed on a consistent measure at various spatial scales (e.g. parcel, block, census, zone or community) and throughout the time domain of interest (i.e. pre-event planning, immediate post-disaster response, and long-term recovery). Second, a building portfolio functionality loss estimation (BPLE) framework is developed, which provides a probabilistic and spatial loss assessment, measured by the BPFM, across an entire community immediately following a hazard event; this assessment also defines the initial post-event functionality state, which is the starting point for building portfolio recovery modeling. Third, a novel stochastic post-disaster building portfolio recovery model (BPRM) is formulated; this model characterizes the spatial and temporal evolution of a building portfolio’s recovery following a hazard event, resulting in projected recovery trajectory and recovery time of the building portfolio, as well as the spatial variation of the recovery outcome within the community. Finally, a building portfolio decision support (BPDS) framework is constructed, underlining that the resilience of a building portfolio (assessed by the BPLE and BPRM) can be enhanced to achieve risk-informed resilience goals through optimized mitigation strategies and recovery planning activities at a community scale.
https://hdl.handle.net/11244/54346
Community resilience
Risk mitigation
Building portfolio
Disaster recovery
Resilience Assessment and Resilience-based Risk Mitigation for Community Building Portfolios
oai:shareok.org:11244/2999102018-05-11T19:52:18Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Mirmozafari, Mirhamed
author
2018
Multifunction Phased Array Radar (MPAR) was defined to investigate the
feasibility of integrating weather observation and air surveillance radars into
a single network. Weather radars require dual polarization capability which
may be also beneficial to aircraft characterization. Research activities have begun
to identify challenges, mitigate risk, and demonstrate polarimetric technologies.
Ten-panel, developed by MIT’s Lincoln Laboratory, was the first
dual-polarized planar phased array demonstrator. Alternatively, a cylindrical
polarimetric phased array radar (CPPAR) was developed at the Advanced
Radar Research Center of the University of Oklahoma to resolve the intrinsic
limitations of planar arrays in making accurate polarimetric measurements.
The current CPPAR employs a frequency scanning patch array antenna. Since
the radar’s performance would be the most important driver, the future operational
CPPAR, suitable for long-range weather measurement, will utilize a
new antenna with higher performance.
It is the purpose of this research to propose a new dual-polarized phased
array antenna for MPAR application. A crossed dipole antenna with sufficient
operational frequency bandwidth is designed. A high polarization purity is
achieved by using a group of efficient techniques in element scale. This element
was modified to obtain a higher match between copolar beams. The modified
element is utilized as an embedded element to form a cylindrical and a planar array antenna. It is demonstrated that suppressed azimuthal surface wave and
consequently highly matched copolar beams can be achieved in a cylindrical
array of proposed crossed dipole. In order to compensate for the electrical
and geometrical asymmetry of the element, an imaged arrangement of the
elements with respect to the center of the array is utilized. It is shown that a
planar array of the modified crossed dipole, arranged in a specific configuration,
proposes zero cross-polarization in the principal planes without increased side
lobe problem. The experimental verification demonstrates that the proposed
phased array antennas are promising candidates for multi-mission applications.
https://hdl.handle.net/11244/299910
Phased Array Antenna
Dual Polarization
Crossed Dipole
High Isolation
DESIGN AND IMPLEMENTATION OF A PHASED ARRAY ANTENNA FOR MULTI-MISSION APPLICATIONS
oai:shareok.org:11244/15302018-04-16T20:29:16Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Lewis, Vester Jerome,
author
1961
http://hdl.handle.net/11244/1530
Herpes simplex.
Glucose.
Glutamine.
Biology, Microbiology.
Virology Research.
Influence of glutamine and glucose upon herpes simplex virus production by HeLa cells /
oai:shareok.org:11244/36642018-04-24T16:10:13Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Siler, Billy J.,
author
1974
http://hdl.handle.net/11244/3664
Readability (Literary style)
Correspondence schools and courses.
Education, General.
Readability levels of correspondence study materials of the United States Coast Guard Institute /
oai:shareok.org:11244/35902018-04-24T15:54:49Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Najem, G. Reza,
author
1973
http://hdl.handle.net/11244/3590
Health Sciences, Public Health.
The reliability of heart disease diagonosis on death certificates /
oai:shareok.org:11244/24262018-04-23T20:21:07Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Dallal, Michael S.,
author
1968
http://hdl.handle.net/11244/2426
Engineering, Civil.
Girders.
Reinforced concrete.
Behavior and design of reinforced concrete T-beams with large openings in the webs /
oai:shareok.org:11244/26452018-04-23T22:27:13Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Freivald, Joseph Allen,
author
1969
http://hdl.handle.net/11244/2645
Algebra.
Mathematics.
General algebras and their manipulative syntaxes /
oai:shareok.org:11244/3191102019-04-27T21:36:05Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
2010
The assimilation of radar data in storm-scale numerical weather prediction models is essential for improved forecasts of thunderstorm events. The huge computational cost of assimilating the high temporal and spatial resolution radar observations poses a challenge to the data assimilation techniques. The objective of this study is to examine the Kalman filter based technique for assimilating the high density radar observations. The first set of experiments evaluates the impact of assimilating high temporal frequency radar observations over a shorter assimilation period using the Ensemble Square Root Filter (EnSRF) data assimilation technique. The impact of model error and the value of using a range of intercept and density parameters for hydrometeor categories across the ensemble members within the same microphysics scheme are examined in the second set of experiments using the EnSRF technique. While the EnSRF technique shows promise in radar data assimilation, one limitation of EnSRF is the high computational expense when the number of observations is very large. Thus in an effort to explore efficient data assimilation method, the feasibility of the information filter as data assimilation technique for large number of observations assimilation is examined. The extended information filter (EIF) is implemented using the Lorenz 96 model and the performance of EIF in assimilating high density observations are compared with the benchmark extended Kalman filter (EKF) data assimilation technique.
https://hdl.handle.net/11244/319110
Kalman filtering
Radar meteorology
Weather forecasting
KALMAN FILTER BASED TECHNIQUES FOR ASSIMILATION OF RADAR DATA
oai:shareok.org:11244/31552018-04-24T11:22:46Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Trainer, John Ezra,
author
1971
http://hdl.handle.net/11244/3155
Pentastomida.
Biology, Zoology.
An ultrastructural investigation of body wall components in Porocephalus crotali (Pentastomida) /
oai:shareok.org:11244/45882018-04-24T21:20:17Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Pettis, Ted Ray,
author
1979
http://hdl.handle.net/11244/4588
Mathematics.
Collections of covers which imply compactness.
oai:shareok.org:11244/41662018-04-24T17:57:16Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Collins, Edward Conrad,
author
1976
http://hdl.handle.net/11244/4166
Education.
Education, Special.
Case study research of atypical adolescent behavior /
oai:shareok.org:11244/3197082020-12-02T20:17:41Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Amirkhosravi, Mehrad
author
2019-05-10
Despite the extensive use of liquid composite molding (LCM) processes such as wet lay-up vacuum bagging (WLVB) and vacuum assisted resin transfer molding (VARTM) in composite manufacturing, they have two major drawbacks. First, the fiber volume fraction of the composite parts made by LCM is lower than those made under an elevated pressure using either autoclave or hot press, leading to lower mechanical properties. Second, the process induced defects in LCM parts are quite high, which may significantly reduce the mechanical performance and environmental durability of composites. The focus of this dissertation is to tackle the important problems encountered with WLVB and VARTM to improve the quality of molded parts.
The first part of this dissertation introduces a novel technique, magnet assisted composite manufacturing (MACM), to improve the quality of WLVB laminates. In this technique, the composite lay-up is sandwiched between a magnetic tool plate and a set of Neodymium-Iron-Boron (NdFeB) permanent magnets during cure. The details and effectiveness of MACM process are investigated by fabricating of E-glass/epoxy composite laminates with and without magnetic pressure and comparing their void content and morphology, fiber volume fraction, and mechanical properties. The results clearly show that the quality of composite laminates is significantly improved in the presence of magnetic consolidation pressure, where the fiber volume fraction increases by more than 50% to almost 30% and process-induced voids decrease to less than 3%. As a result, the flexural strength and modulus of the parts are enhanced by approximately 60% and 50% to ~245 MPa and ~10 GPa, respectively.
The second part of the dissertation extends the application of the MACM technique to fabricate high-quality VARTM laminates. In VARTM, unlike the WLVB process, the preform impregnation takes place under vacuum, which results in different mechanisms of void formation and different ranges of fiber content. Thus, enhancing VARTM is quite different than enhancing the WLVB process which provides the motivation to investigate the effectiveness of utilizing MACM in VARTM. In this regard, thin (i.e. 6-ply), as well as moderately thick (i.e. 12- and 18-ply) E-glass/epoxy laminates are fabricated by applying MACM either before or after infusion. The results prove the effectiveness of MACM in fabricating high-quality VARTM laminates where a fiber volume fraction of more than 50% and void content of less than 1% is achieved. In addition, a transient magnetic consolidation model is developed, predicting the final thickness and fiber volume fraction of the VARTM/MACM parts.
The third part of this dissertation introduces a novel technique of compacting dry fibrous reinforcement to control the resin flow rate, thus eliminating the void formation in VARTM parts. In this technique, the fibrous preform is compacted by either stationary or moving magnets prior to resin infusion. As a result, the pore size between the fabric layers and permeability are reduced, and the filling rate of resin into preform decreases. The results show that in the absence of magnetic pressure, the void content could be up to 5.7%, much higher than 0.1-0.8% voids in the laminates made by 0.2 MPa magnetic compaction. In addition, moving magnets with a smaller footprint over a larger vacuum bag surface is a feasible approach to apply compaction pressure on medium to large parts, thus dramatically decreasing their void content to below 1%.
https://hdl.handle.net/11244/319708
Engineering, Mechanical.
Polymer-matrix composites (PMCs)
Neodymium permanent magnets
Mechanical properties
Process modeling
Vacuum infusion
Process induced voids
Improving the Quality of Laminates in Liquid Composite Molding Using Magnetic Compaction: Experiments and Process Model
oai:shareok.org:11244/46642018-04-24T21:39:53Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Meeks, Arthur Wayne,
author
1980
http://hdl.handle.net/11244/4664
Engineering, Electronics and Electrical.
Minimum variance mean estimation for stochastic processes with normal power spectral density.
oai:shareok.org:11244/146342020-05-21T16:45:55Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Wen, Yixin
author
2015-05-08
There are primarily two types of weather radar systems offering precipitation measurements covering relatively large areas: (1) Ground-based Radar (GR) networks such as the NEXRAD and (2) Spaceborne radars onboard meteorological satellites. Ground-based polarimetric weather radar is arguably the most powerful validation tool that provides physical insight into the development and interpretation of space-borne weather radar algorithms and observations. To achieve the synergy between ground- and space-borne weather radar, this study first aims to compare and resolve discrepancies in hydrometeor retrievals and reflectivity observations between the NOAA/National Severe Storm Laboratory (NSSL) “proof of concept” polarimetric WSR-88D radar (KOUN) and the space-borne precipitation radar (PR) onboard NASA’s Tropical Rainfall Measuring Mission (TRMM) platform. The comparisons reveal an overall bias <0.2% between PR and KOUN. The bias is hypothesized to be from non-Raleigh scattering effects and/or errors in attenuation correction procedures applied to Ku-band PR measurements. Provided the upgrade of the U.S. national weather radar network to include polarimetric capabilities, the findings in this study will potentially serve as the basis for nation-wide validation of space precipitation products and also invite synergistic development of coordinated space/ground multisensor precipitation products.
On the other hand, due to inadequate radar coverage from intervening terrain blockages, ground QPE needs enhancement aided by spaceborne radars. In the second part of the talk, I will introduce an approach that identifies and corrects for vertical profile of reflectivity (VPR) by using TRMM PR measurements in the region of Arizona and southern California, where ground-based NEXRAD radars are difficult to obtain reliable ground precipitation estimation due to complex terrain and limited radar coverage. A VPR Identification and Enhancement (VPR-IE) method based on the modeling of the vertical variations of the equivalent reflectivity factor using a physically-based parameterization and climatological information is employed to obtain VPRs at S-band from the TRMM PR measurement at Ku-band. The VPR-IE methodology is comprehensively evaluated with all stratiform precipitation events in cold season in the year of 2011. The results show that the VPR-IE has overall good performance and provides much more accurate surface rainfall estimates than original radar QPE in NMQ system. With the recent availability of GPM Dual-frequency PR, the VPR-IE approach is anticipated to be more robust and more useful by extending to higher latitude mountainous regions.
http://hdl.handle.net/11244/14634
Meteorology
Remote Sensing
Quantitative Precipitation Estimation
TOWARDS IMPROVED QPE BY CAPITALIZING GROUND- AND SPACE- BASED PRECIPITATION MEASUREMENTS
oai:shareok.org:11244/3189412019-04-27T21:32:12Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
2011
The promise of multi-class communication networks is gradually becoming a reality. The term multi-class means that the network provides different classes of service that can support diverse application requirements and heterogeneous users demand. This dissertation focuses on establishing an equitable price for each class of service in multi-class networks, considering fairness among the classes and economic efficiency. We adopt a game-theoretic approach to the problem in order to take into account the interdependence among users' service choices.
We investigate subsidy-free prices for each class of service under two distinct service architectures: in multi-class priority-based networks, traffic from each class is assigned priority level in the queue; in multi-class DiffServ networks, network resource is allocated to each class. In both cases, classes of traffic having longer average waiting time receive monetary compensations from other classes and the subsidy-free price for each class of service is developed based on inter-class compensations. This work provides a framework to set subsidy-free price or sustainable price for each class of service which is assumed crucial to network providers if they are to survive the competition in the market place.
We further consider market-clearing prices for each class of service in a competitive market in which each user endowed with an initial budget will purchase bandwidth from each class of the network resource to maximize his or her utility function. A competitive equilibrium is reached when the total bandwidth is allocated, each user spends all his or her budget, and the utility functions are independently and simultaneously maximized. Our research shows that such equilibrium always exists and, under fixed bandwidth supply for each class of service, the equilibrium is also unique. Furthermore, we discuss how to adjust the initial endowment of each user to meet his or her individual bandwidth constraint, either from constraint on the access network or from the limitation of the user equipment. Under this bandwidth constraint condition, the proposed competitive equilibrium yields the price for each class of service, the budget redistribution and the bandwidth allocation among all users. We also develop an iterative algorithm for budget allocation to satisfy each user's bandwidth constraint. The presented competitive market model provides a solution for pricing a multi-class network and allocating network resource among users. And we find this solution achieves higher social utilization, better individual satisfaction and the QoS of each class.
Another advanced topic in communication networks is net neutrality, which has become the subject of fierce debate among the stakeholders of public telecommunication services. Broadband access providers argue that preservation of the integrity of the network services requires them to use discriminatory traffic management practices to slow down certain applications or to purge certain packets that would compromise the integrity of the network. We propose a solution based on the idea of inter-user compensations that could control network congestion and yet maintain fairness among heavy and light users without violating net neutrality. Users consuming less network resource will receive compensations from heavy users. Our research provides a method for broadband access providers to shape the traffic characteristics of users and thus controlling network congestion and maintaining network performance without inflicting discriminatory treatment on network traffic.
https://hdl.handle.net/11244/318941
Computer networks
Game theory
Pricing in Multi-Service Communication Networks: A Game-theoretic Approach
oai:shareok.org:11244/53002018-04-25T02:22:44Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Nealon, Michael J.,
author
1984
With the magnetic field parallel to the surface, non-periodic structure in the transconductance is observed and attributed to the total depopulation of the subbands as they are pushed up in energy above the Fermi level. As the sample temperature is increased the amplitude of this structure decreases, which allows a measurement of the subband energy.
The electron gas formed at the surface of an n-type InAs MOSFET is quasi two-dimensional. The period in inverse magnetic field strength of the Shubnikov-de Haas oscillations allows a determination of the 2D subband number density. Tipping the magnetic field away from the surface normal decreases the subband population: the component of the magnetic field parallel to the accumulation layer raises the subband energies, hence depopulating the excited states, and the perpendicular field component gives rise to the SdH oscillations from which the population can be determined.
Also observed in our data is the magnetic freeze-out of 2D impurity band conduction at the oxide-semiconductor interface.
http://hdl.handle.net/11244/5300
Indium arsenide.
Physics, Condensed Matter.
Electron gas.
Quasi two-dimensional accumulation layer on n--type InAs in tipped magnetic fields /
oai:shareok.org:11244/79152020-05-21T16:10:12Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Batbayar, Nyambayar
author
2013-12
Most waterfowl that breed in Mongolia, part of the semiarid northern region of East Asia, are long distant migrants. They depend on availability of lake, river, and wetland habitats on their breeding and wintering grounds and need suitable staging and stopover sites along their flight routes to complete their migration. Waterfowl in this region have developed important adaptations and strategies to ensure their survival and reproductive fitness across generations. I studied the ecology of two goose species endemic to this semiarid region, the bar-headed goose (Anser indicus) and swan goose (Anser cygnoides), to examine their use of highly-variable, wetland habitats. I studied the breeding biology of bar-headed geese across three summers (2009-2011) while conducting the first systematic nesting study in the semiarid Khangai Mountains region of west-central Mongolia. Bar-headed geese were found nesting on both islands and cliffs, but their daily nest survival was higher at cliff nests and ranged from 0.94 to 0.98 with average nest survival of 42.6% during the incubation period. Information-theoretic models indicated that nest survival decreased with nest age and varied annually. Waterfowl in this region may be limited by available nest sites, but disturbance and depredation also may play a critical role in their population dynamics. I also tracked the migration of both species via satellite telemetry from their breeding grounds to wintering grounds. Satellite tracking data revealed that swan geese migrated through the Yalu River Delta to a wintering area primarily restricted to Eastern China. In contrast, bar-headed geese had a much greater wintering area ranging from southern China to the southern tip of India. Recently, wintering grounds of both species have had significant land cover and land use changes related to global warming and human activities. For the first time, I was able to document unique and narrow migration corridors for both species that were related to landscape features. The migration corridor of bar-headed geese on the Qinghai-Tibetan Plateau was restricted to one biogeographic biome, while swan geese moved across biomes in a loop migration, preferred stopover sites in natural landscapes, avoided areas of eastern China with large scale developments and high human densities, and wintered in the Yangtze River Basin. Migration of bar-headed geese was associated with vegetation green-up as indicated by the Normalized Difference Vegetation Index (NDVI), and geese strategically moved between areas with peak NDVI values extending from their wintering grounds in India, migration stopover areas on the Qinghai-Tibetan Plateau, and breeding grounds in Mongolia. The arrival of bar-headed geese at staging areas during the spring migration was correlated with a decline of green vegetation biomass on their wintering grounds in India and advancement of vegetation green-up in northern latitudes. During the autumn migration, snow cover and land surface temperature corresponded well with their southward movement. These results will have important implications to improve understanding of wild bird biology in this region as well as disease ecology -- waterfowl may contribute to gene flow of avian influenza viruses among different geographical populations of wild and domestic birds through their long distance migration. Species distributions are expected to shift in response to climate change, and swan and bar-headed geese likely will alter their distribution and migratory behavior in response but constrained by both natural habitat availability and human effects limiting their habitats.
http://hdl.handle.net/11244/7915
Biology, Ecology.
Biology, Zoology
Remote Sensing.
Breeding and migration ecology of bar-headed goose Anser indicus and swan goose Anser cygnoides in Asia
oai:shareok.org:11244/56842018-04-25T03:41:05Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Howard, Joseph William.
author
1998
Near-infrared Virgo cluster spiral colors. Near-infrared (NIR) surface photometry in J (1.2$\mu$m), H (1.6$\mu$m) and K (2.2$\mu$m) have been obtained for a sample of Virgo cluster spirals; NGC4321, NGC4303, NGC4571, NGC4689, and NGC4254 which span a large range in HI deficiency. The spirals range from a normal gas content to a deficiency of a factor of 10 compared to normal galaxies. Using previous HII region abundance studies along with the NIR colors an attempt has been made to calibrate any correlation between the J-K index to the overall gas phase abundance gradients as a first step to probing the underlying stellar metallicity. Decomposition techniques have been used to produce estimates of spiral bulge/disk masses and luminosities in all three J, H, & K bands, as well as to explore the variation of mass-to-light ratios within the separate galaxy components. An analysis of the NIR colors is performed in an attempt to unravel the similar effects that stellar ages, dust content, metallicity, and some non-stellar emission processes has upon colors. The derived color gradients for the J-K index are very shallow and show a range of behaviors across the galaxy sample.
Halo planetary nebulae. Using published spectral line data for nine halo planetary nebulae (HPNe), I have calculated photoionization models in an attempt to gain insight into the physical conditions and chemical abundances of these nebulae. The nine HPNE reported upon are K648, DdDm-1, NGC2242, NGC4361, PN243.8-37.1, PN006-41.9, M2-29, BB-1, and H4-1. The derived abundance ranges for the HPNe are: C 6.60-8.95, N 7.18-8.00, O 7.56-8.56, Ne 6.24-7.71, Ar 4.12-7.70, and S 4.90-7.00 (log(x) + 12). The temperature range for the central stars of these nebulae is 40,000 to 140,000K. Specifically, with a few exceptions, I find that all nine objects exhibit subsolar O/H; most show enhanced C/O and N/O, and a constant Ne/O ration. I also note the existence of comparatively larger abundance scatter in the HPNe as opposed to disk PNe, and suggest that this is consistent with the accretion model of halo formation formulated by Searle & Zinn. In addition, I test the effects on derived abundances and central star temperatures of a variety of model atmospheres as well as blackbodies for input ionizing spectra. I find that nebular line strengths are relatively insensitive to atmospheric details; thus blackbody spectra are suitable for central star continua.
http://hdl.handle.net/11244/5684
Spiral galaxies.
Planetary nebulae.
Cosmic abundances.
Physics, Astronomy and Astrophysics.
Prospecting for elements: Galactic halo planetary nebulae abundances and Virgo spiral galaxy color profiles.
oai:shareok.org:11244/30672018-04-24T10:36:15Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Mehdizadeh, Parviz,
author
1971
http://hdl.handle.net/11244/3067
Engineering, Materials Science.
Surfaces (Technology)
The effects of anodic oxide films on the mechanical properties of aluminum single crystals /
oai:shareok.org:11244/5882018-04-25T04:22:48Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Thompson, Kathy Akin.
author
2003
Music educators agree that the internalization of pitch from music notation is essential for music literacy, but college music theory teachers often find that students' aural comprehension lags behind their visual comprehension of musical notation. Teachers may find pitch skills difficult to teach because their own cognition has become intuitive through musical experience. Research in aural skills pedagogy has produced neither comprehensive curricular requirements nor an ideal sequence of experiences for pitch internalization. Furthermore, teachers with absolute pitch (AP) cannot know from personal experience how to teach necessary relative pitch (RP) skills.
Results of the Aural Skills Questionnaire were analyzed to determine the types of experience and deliberate practice that led to effective RP skills among 100 professional musicians. Music instruction and ensembles before and during college were considered along with training and experience after college. Participants also compared their own strategies with six metaphors for pitch perception proposed in the author's earlier study, Thinking in sound: A qualitative study of metaphors for pitch perception---Follower, Contour-singer, Button-pusher, Builder, Tonal-thinker and Pitcher. Three music educators also analyzed participants' strategies through their scripts for aural tasks and compared them with the metaphors. One additional metaphor was proposed---the Chunker---to describe the pattern-seeking strategy found in many scripts and definitions of other metaphors were revised. Individual interviews with RP experts, chosen on the basis of accuracy in aural tasks and self-assessed confidence, provided additional insights for aural skills pedagogy.
http://hdl.handle.net/11244/588
Education, Music.
Music theory.
Musical pitch.
Pitch internalization strategies of professional musicians.
oai:shareok.org:11244/16162017-02-03T04:35:16Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Hann, R. W.
author
1963
http://hdl.handle.net/11244/1616
Drainage.
Engineering, Sanitary and Municipal.
Sanitary engineering.
Refuse and refuse disposal.
Procedure for estimating the waste assimilation capacity of a river system /
oai:shareok.org:11244/55162018-04-25T03:06:22Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Montis, Kristine Kowitz.
author
1997
The results of this study substantiated aspects of the learning theories which were applied. It was observed, however, that classroom instruction was in many instances not consistent with such theories and in these cases Kay's learning difficulties were acerbated. Grounding of these theories in the exceptional case resulted not so much in revising the individual theories, but in highlighting the desirability of using multiple approaches.
This case study identified and described the impact of learning difficulties on the life-experiences of a 12 year old student named Kay. The study proceeded with an analysis of how Kay makes sense of her world and copes with her learning difficulties, particularly in the areas of mathematics and reading. Then constructivist, developmental, cognitive, and language/cultural learning theories were examined for elements which might be expected to positively impact Kay's learning process. The identified elements were implemented in an action research design using an intervention protocol during tutoring sessions over the 1996-97 school year.
The implications of this study include issues about (1) assumptions about common cultural experiences which are erroneous and therefore hinder the learning process, (2) the continuing disparity between what is known about learning and what actually takes place in classroom practice and (3) making mathematics accessible to students with learning difficulties.
In terms of school grades the four most dramatic observed changes were associated with (1) Explicit Instruction in Study Skills, (2) Memory Load Reduction, (3) Proactive Teaching, and (4) Pair-Reading with Discussion. Underlying the success of these interventions was the use of The Clinical Interview which aided in first understanding Kay's thought processes and then identifying appropriate interventions.
The results of this study centered around the ten types of interventions which were tried. In chronological order of when they were applied in this study, the ten interventions were: (1) Corrective Feedback; (2) The Clinical Interview; (3) Use of Visual Aids; (4) Pair-Reading with Discussion after Each Paragraph; (5) Use of Manipulatives; (6) Memory Load Reduction; (7) Proactive Teaching; (8) Metacognitive Strategies; (9) Calculators and Reference Charts; (10) Explicit Instruction in Study Skills.
http://hdl.handle.net/11244/5516
Education, Reading.
Learning disabled children Education Case studies.
Education, Educational Psychology.
Reading Study and teaching Case studies.
Mathematics Study and teaching Case studies.
Education, Mathematics.
Kay :
oai:shareok.org:11244/45922018-04-24T21:21:13Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Rinker, Craig Wayne.
author
1979
http://hdl.handle.net/11244/4592
Literature, Classical.
Communication, Dept. of.
The art of censure :
oai:shareok.org:11244/3372018-04-24T13:43:29Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Kimmel, David Charles.
author
2001
Scholars have just begun to research the issue of incivility in the workplace. The research focusing on a proactive approach of creating civility is even more sparse. Therefore, the purpose of this study is to determine if employees view incivility as a problem. If so, what do they think their role is in developing a more civil environment? Also, what do they think the organization's responsibilities are for establishing civil environments? This study utilized focus group research techniques as a qualitative research effort. The participants were from large bureaucratic companies in a moderate-sized southwestern city.
The term respect was most often used to discuss civility followed by the golden rule, responsibility, communication and politeness. The participants' statements indicate that the solutions to reducing incivility and creating civil environments involved issues of personal responsibility, leadership responsibility, and organizational guidance and policies consisting of: defining acceptable behavior, establishing policy, and enforcing rules, and communication and training.
The research findings indicate that employees do recognize incivility to be a problem. The terms most often used to discuss incivility were disrespect, violence and rudeness. The participants believed that the differences between people were the single most important cause of incivility followed by lack of training, lack of good people skills, differences in perception, and ego.
As a result of the literature review and the data collected, a definition of Organizational civility (OC) was developed to help direct future organizational attempts at creating civil environments. Organizational Civility is defined as: that aspect of the an organization's culture that embraces a norm of mutual respect and responsibility and enhances a person's ability to recognize their own behavior and its impact on the organization.
http://hdl.handle.net/11244/337
Corporate culture.
Business etiquette.
Business Administration, General.
Courtesy.
Work environment.
Business Administration, Management.
Sociology, Industrial and Labor Relations.
Interpersonal relations.
Organizational civility: Issues, problems and solutions to creating environments of civility in the workplace.
oai:shareok.org:11244/3375152023-05-03T05:00:22Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Dangwal, Deepankar
author
2023
Exploratory imaging of the shallow crust is motivated by – (i) the presence of exploitable natural resources, (ii) its influence on seismicity and associated hazards, and (iii) the insights it can provide into the evolution of geological landforms. Keeping in mind these motivations, I use passive seismic interferometry to image the shallow crustal structures. Conventional exploration seismology focuses on local scale imaging using active-source methods (e.g., dynamite, air guns, vibro-seis). In contrast, passive seismic interferometry offers the possibility to use universally available noise sources (both natural and anthropogenic) for subsurface imaging. This approach does not require a spatially and temporally confined seismic source and is thus a cost-effective alternative in logistically challenging environments (e.g., polar ice sheets, exo-planets, etc.). Further, the use of ambient noise as a seismic source minimizes the adverse environmental impact of explosive source experiments in sensitive ecological zones.
Ambient noise methods generally utilize low-frequency diffuse noise fields (e.g., microseisms) for global scale imaging of deep earth structures. Application of these methods at shallow scales is challenged by the scarcity of high-frequency ambient noise sources in local settings. Areas away from anthropological activity have very weak noise sources of sufficiently high frequencies. Although, in urban environments some high-frequency sources are available (e.g., traffic, industrial noise), but these are usually confined to a narrow azimuth. Moreover, local noise sources predominantly produce surface waves which have limited vertical and horizontal resolution to be able to image the shallow subsurface.
In this dissertation, I focus on the applications of passive seismic interferometry for high-resolution imaging of the shallow subsurface (<1 km depth) by attempting to overcome the challenges and limitations mentioned above. Three diverse application scenarios are presented to demonstrate the versatility of the interferometric methods. These include – (i) Passive P- and S-wave reflectivity imaging in an oil field (Wellington, Kansas) setting using reservoir monitoring data; (ii) Passive seismic imaging of a buried alpine valley (Unaweep, Colorado) to test the hypothesis of Paleozoic glaciation; (iii) Passive seismic imaging for seismic hazard assessment in an urban environment (Enid, Oklahoma).
Reflectivity imaging using passive seismic interferometry is generally challenged by the dominance of surface-waves in ambient noise recordings. To overcome this limitation, I develop and implement single-station polarization filters to automatically extract body waves (P- and S-waves) from continuous ambient noise. The extracted waves are then subjected to interferometric processing to retrieve subsurface reflections. This methodology is suitable for sparse and irregular seismic networks such as the previously mentioned reservoir monitoring array. In another application, similar results are achieved by using a teleseismic catalog to extract the P-wave coda.
Road-side deployments in the alpine valley and the urban environment mentioned above make linear array geometry feasible. I take advantage of the linear geometry to interferometrically retrieve surface waves propagating along the array which are then inverted to obtain a shear-velocity profile. I compliment the shear-velocity models with results from other passive seismic methods – e.g., structural reflectivity from teleseismic coda-wave autocorrelation, or layer thickness from horizontal-to-vertical spectral ratio analysis.
The main results presented in this dissertation includes the retrieval of shallow (< 1 km) structural reflections and the estimation of seismic speed ratio (Vp/Vs) at the Wellington Oil field. This is significant since very few studies have reported the retrieval of S-wave reflectivity using passive seismic methods. In the Unaweep canyon, I image the buried valley floor. The undulating sedimentary-basement interface revealed by the passive imaging suggests the glacial genesis of the canyon. In the Enid study, the high lateral resolution near surface model is well correlated with the site amplification data derived from distributed acoustic sensing. In an urban environment, such experiments are relevant for town-planning and can be used to assess the seismic hazard at sub-kilometer scales.
https://shareok.org/handle/11244/337515
Seismology
Geophysics
Seismic Interferometry
Application of passive seismic interferometry for local and shallow imaging
oai:shareok.org:11244/7332018-04-25T05:28:02Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Szekeres, Erika.
author
2004
Surfactant enhanced aquifer remediation technology offers great potential to clean up oil contaminants. For oil mixture contaminants the remediation efficiency can vary significantly between the different oil components. To understand this behavior binary oil mixture solubilization in saturated oil/water/anionic surfactant microemulsion systems has been studied, using dissimilar oil components. Phase behavior, solubilization, and interfacial tension studies have been carried out with three model oil mixtures: TCE-acetone, benzene---limonene, and dodecanol---limonene. In the TCE-acetone mixture acetone diluted the surfactant monolayer at the oil/water interface reducing its solubilization ability. The optimum salinity was not affected by acetone, due to balanced acetone partitioning between the oil and water phases. Benzene-limonene and dodecanol-limonene mixture studies suggest that the semi-polar benzene and amphiphilic dodecanol is solubilized selectively in the oil domain of the microemulsion, close to the oil/water interface. Selectivity decreases with increasing electrolyte concentration and with increasing polar oil concentration. The excess polar oil solubilization follows a Langmuirian type adsorption trend. Studies of the dodecanol-limonene system suggest that the amount of oil solubilized at the palisade layer changes the curvature and the bending rigidity of the surfactant film. This in turn affects the optimum salinity and the oil solubilization ability of the microemulsion. These results are used to extend the net-average curvature model to predict solubilization of oil mixtures in microemulsions. Study and model results are used to explain why significant differences in the SEAR remediation efficiency of individual oil components could occur when the oil contaminant is a complex oil mixture.
http://hdl.handle.net/11244/733
Engineering, Chemical.
Nonaqueous phase liquids.
Surface active agents.
Groundwater Pollution.
Solubilization.
Emulsions.
Solubilization of oil mixtures in anionic surfactant microemulsions.
oai:shareok.org:11244/57782018-04-25T04:01:29Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Ledlow, Gerald Ronald.
author
1999
The purpose of this study was to examine characteristics of communication in a managed care context. Nurse call centers were the focus of the study and several objectives were pursued. The study sought to determine the level of communication quality between patients (customers) and nurses in the call center. Secondly, the study was interested in examining the quality of communication between physicians and non-physician providers and the nurse call center from the provider's perspective. Measuring the timeliness, accuracy, usefulness, and quantity of communication, by survey instrument, provides a comprehensive picture of communication quality. As it was hypothesized, patients differ, these measures served as the independent variables for the study, in socioeconomic status, needs, experience, age, and various other factors, and their assessment and perception of nurse call center communication quality should differ. Likewise, providers who differ in training, special, and experience, should have different perceptions and expectations of communication. Also, location of the beneficiary and provider of care in relation to the nurse call center should have an impact on perceptions of communication quality.
Providers' communication quality needs were not met in this study. All dimensions of communication quality showed significant differences for provider perceptions of actual communication when compared to the provider ideal quality. Older providers and those who were distant to the nurse call center had higher timeliness dimension scores. Providers who were local, had internal medicine or ob/gyn specialties, and were 40 to 50 years old had lower quantity (excessive flow of information) scores. Dimensions of accuracy and usefulness revealed no significant predictors.
Female beneficiaries scored higher in the timeliness, accuracy, and usefulness communication quality dimensions. Beneficiaries with high health self-efficacy scored higher for the timeliness dimension than low self-efficacy subjects, although females with low health self-efficacy scored higher than males with high or low health self-efficacy. For the accuracy dimension, civilians and local beneficiaries scored higher than other groups. The low socio-economic group, civilian beneficiaries, and age groups 19 to 25 and 36 to 40 scored higher in the usefulness dimension than other groups. The quality communication dimension revealed no significant findings. Implications of the results and limitations of the study were discussed.
http://hdl.handle.net/11244/5778
Nurse and physician.
Business Administration, Management.
Health Sciences, Nursing.
Nurse and patient.
Communication in medicine.
Health Sciences, Health Care Management.
Healthcare demand management system communication among the primary care provider, the beneficiary, and the nurse call center.
oai:shareok.org:11244/3187722019-04-27T21:28:17Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
2011
In this work, Computational Fluid Dynamics (CFD) and Fluid Structure Interaction (FSI) methods were used to study two separate problems: red blood cell damage in flow and the hemodynamics of diseased renal arteries; specifically, those with renal artery stenoses or aneurysms.
The study of red blood cell trauma was motivated by deficiencies in the current empirical models used for hemolysis estimation. Using CFD, classic hemolysis experiments performed in capillary tubes for laminar flow and a Couette viscometer for turbulent flow were re-examined. The results of the capillary tube simulations indicated that the extensional stresses present in the flow contributed to hemolysis, with a threshold value of approximately 3000 Pa for exposure times on the order of microseconds being indicative of hemolysis. In the turbulent Couette viscometer simulations, where experimental exposure times were five minutes, it was found that Kolmogorov Length Scales of the same order of magnitude as the size of a red blood cell were indicative of hemolysis, with some dependence on the median Kolmogorov Length Scale in the flow. The results of an inter-laboratory FDA study are also reported.
Simulations of diseased renal arteries were also performed, which included simulations of stenoses and aneurysms of varying geometries. Initially, this work was done solely with CFD, however FSI was eventually incorporated into the renal artery aneurysm simulations. The results of this study indicate that the uncertain relationship between renal artery aneurysms and renin-dependent hypertension is possibly related to transient occlusions of the artery that occur when high pressure within the aneurysm causes the aneurysm and underlying vessel wall to deform into the blood stream
https://hdl.handle.net/11244/318772
Blood flow
Hemodynamics
Renal artery--Diseases
COMPUTATIONAL INVESTIGATIONS OF RED BLOOD CELL MECHANICAL TRAUMA AND OF DISEASED RENAL ARTERY HEMODYNAMICS
oai:shareok.org:11244/30832018-04-24T10:45:22Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Sullenberger, Alfred Gale,
author
1971
http://hdl.handle.net/11244/3083
Production control.
Engineering, Industrial.
An investigation of probabilistic dispatching procedures for minimizing penalty costs in a job-shop /
oai:shareok.org:11244/28082018-04-23T23:53:18Zcom_11244_21724com_11244_1col_11244_21725col_11244_10476
00925njm 22002777a 4500
dc
Kidwell, Clara Sue.
author
1970
http://hdl.handle.net/11244/2808
History, Modern.
Cesi, Federico, 1585-1630. Apiarium.
Accademia nazionale dei Lincei.
The Accademia dei Lincei and the Apiarium :
oai:shareok.org:11244/17922018-04-16T21:13:19Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Hyde, Jeannine Elizabeth,
author
1964
http://hdl.handle.net/11244/1792
Gallegos, RÔΩ̜mulo, 1884-1969.
Literature, Modern.
The function of symbol in the novels of Róo Gallegos /
oai:shareok.org:11244/42292018-04-24T18:32:48Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Horstman, Preston.
author
1976
http://hdl.handle.net/11244/4229
Psychology, Industrial.
California psychological inventory.
Police.
Assessing the California psychological inventory for predicting police performance /
oai:shareok.org:11244/21672018-04-18T16:12:49Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Lauderdale, Michael L.
author
1967
http://hdl.handle.net/11244/2167
Psychology, Social.
Small groups.
A study of small groups in socially differentiated settings /
oai:shareok.org:11244/43172018-04-24T18:51:08Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Wepfer, Anita Joan,
author
1977
http://hdl.handle.net/11244/4317
Environmental Sciences.
Energy.
The asbestiform-fiber contamination of Lake Superior and the resulting potential health hazard:
oai:shareok.org:11244/37352018-04-24T16:25:59Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Kays, Marvin Dale,
author
1974
http://hdl.handle.net/11244/3735
Physics, Atmospheric Science.
Stratosphere.
Optimal sampling of a stratospheric sudden warning /
oai:shareok.org:11244/3190872019-04-27T21:35:19Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
2012
Understanding the complicated behavior of expansive soil requires in-depth exploration of microscopic phenomena under varying situations, especially when the soil stays unsaturated and experiences swell-shrink cycles. This study is dedicated to a comprehensive investigation of eleven micro-scale properties that function as revealing factors of these electro-physico-chemical mechanisms and the associated surface forces. These microscale properties include: specific surface area (Sa), cation exchange capacity (CEC), surface conductance (λddl), soil acidity (pH), mineralogy (from X-ray diffraction), structure (from scanning electron microscopy), elemental composition (from energy-dispersive X-ray spectrometry), diffuse double layer thickness (t), real relative permittivity (κ'), effective conductivity (σ) and suction (s). Four naturally collected and two laboratory stabilized expansive soils were selected as the study objects. The roles of some microscale properties in determining the macroscopic behavior of volume change and shear strength have been thoroughly examined through experimental work including three dimensional water content-volume-suction studies and a triaxial test program on unsaturated specimens along three capillary paths. The effects of chemical stabilization by fly ash have also been extensively evaluated from a microscopic point of view.
Some innovative testing and analysis approaches were proposed; highlights include (1) constructing a two-terminal electrode system integrated in conventional oedometer equipment and performing dielectric measurements on natural expansive soils at various hydromechanical stages; (2) quantifying diffused double layer (DDL) in terms of thickness and surface conductance; (3) establishing an unsaturated triaxial testprogram based on the predetermined hysteretic soil water characteristic curves (HSWCCs) and the chilled mirror hygrometer tests after shear. Additional newly developed approaches were applied in the studies of soil mineralogy, structure and pore fluid (e.g., assessment of the degree of interfacial polarization and the electrical anisotropy).
This research establishes a comprehensive framework of expansive soil behavior based on experimental efforts and analysis founded in geology, geochemistry, electronics and geomechanics. The outcome will not only help field engineers explain and find solutions for natural threats on civil infrastructure caused by expansive soils, but also provide evidence and a database for verification or improvement of the present geophysical and mechanical constitutive models. Some potential research efforts, especially the imaging of intact soil structure and the adoption of dielectric testing as a common geotechnical practice, are suggested based on the findings of this study.
https://hdl.handle.net/11244/319087
Swelling soils
Soil physics
Environmental chemistry
A Comprehensive Investigation on Microscale Properties and Macroscopic Behavior of Natural Expansive Soils
oai:shareok.org:11244/24982018-04-23T21:00:10Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Ghaffarzadeh, Mehdi,
author
1969
http://hdl.handle.net/11244/2498
Engineering, Civil.
Reinforced concrete construction.
Strength of materials.
Effect of corrosion and bar spacing on bond properties of reinforcing bars in concrete /
oai:shareok.org:11244/43202018-04-24T18:51:51Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Ziegler, Laurance H.,
author
1977
http://hdl.handle.net/11244/4320
Psychology, Social.
Education.
The difference between Machiavellianism and prognosis in mental patients and prison inmates /
oai:shareok.org:11244/31742018-04-24T11:32:30Zcom_11244_1col_11244_10476
00925njm 22002777a 4500
dc
Cheam, Venghuot,
author
1971
http://hdl.handle.net/11244/3174
Polarization (Electricity)
Chemistry, Physical.
Molecules.
Vapor density and PVT studies of molecular interactions of polar substances /
oai:shareok.org:11244/1782018-04-16T21:10:38Zcom_11244_1col_11244_10476
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Scull, Berton James.
author
1956
http://hdl.handle.net/11244/178
Mines and mineral resources Arkansas.
Geology Arkansas.
Barite.
Geology.
Origin and occurrence of barite in Arkansas /
oai:shareok.org:11244/145772018-04-16T18:49:58Zcom_11244_1col_11244_10476
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Cairns, Shayne
author
2015-05
The following dissertation will cover the initial studies of Sb quantum wells as topological insulators. The theoretical background and previous studies of topological insulators are covered first, to set the foundation for future discussion. The idea of topology is discussed and how it relates to physical systems like the quantum Hall state is described. Then the theory behind topological band structure and the Z$_2$ topological insulator system is discussed. This is followed by the experimental observations of topological insulators in 2D and 3D systems. Sb as a topological insulator is introduced in relation to the the first 3D topological insulator observed in Bi-Sb alloys. Due to the large conduction in bulk Sb, quantum confined Sb wells are grown by molecular beam epitaxy (MBE) to reduce bulk conduction.
Sb quantum wells grown by MBE on two types of substrates, GaAs(111) and GaSb(111). Before growth of the Sb well, a 0.5\,$\mu$m GaSb buffer was grown to provide an excellent lattice matched surface, as GaSb and Sb in the (111) direction have less than a 0.1\% lattice mismatch. The initial Sb wells ($\sim$ 30 samples) were grown on GaAs(111) substrates, using two different growth procedures. Surface studies of Sb wells showed a large amount of dislocations originating from the lattice mismatch between the GaAs substrate and GaSb buffer layer; hence a second series of wells was grown on GaSb(111) substrates to alleviate this problem. GaSb substrates from three different manufactures were used: Wafer Tech, New Way Semiconductor, and Galaxy Wafer. Multiple substrate manufacturers were used depending on existing supply at the University, cost of substrates, and availability. Sb wells grown on New Way substrates showed poor quality when compared to wells grown on Wafer Tech and Galaxy substrates and were hence discontinued. Sb wells of excellent quality were then fabricated into Hall bar devices and nano-wire devices.
Standard device processing steps presented unexpected issues when applied to Sb wells and a revised procedure was formulated. Nano-wire devices were fabricated using electron beam lithography (EBL) and reactive ion etching (RIE). Magneto-transport and quantum interference experiments were then conducted.
To better understand the effects seen in magneto-transport measurements, classical magneto-transport and quantum interference theory is covered. The classical magneto-resistance effect is introduced along with quantum interference effects (e.g. weak localization). These effects are used to explain low and high field data. Zero field conductance measurements show reduced bulk conduction and residual surface conductivity at zero well thickness. Low field measurements exhibit a strong weak anti-localization (WAL) effect that dissipates with increasing temperature. Fits to WAL data using a theoretical model by Hikami, Larkin, and Nagaoka agree well with experiment and a determination of the phase breaking length and $\alpha$ pre-factor is possible. The temperature and thickness dependence of the fitting parameters was investigated. High field magneto-transport is done in tilted field to determine whether the observed magneto resistance is 2D or 3D in origin. An evolution of the high field magneto resistance from parabolic (B$^2$) to linear (B) field dependence is seen for decreasing well thickness. This effect can be reproduced using a simple model containing bulk and WAL terms in concert. Initial measurements of nano-wire devices show the presence of universal conductance fluctuations (UCF), but more work is required to form a complete picture.
In conclusion, the Sb quantum wells in this study show reduce bulk conduction when compared to bulk films. Also the presence of residual conduction at zero well thickness indicates surface transport as expected for a 3D topological insulator. Parameters determined from WAL fitting are independent of well thickness which points to 2D surface conduction. This is also seen in tilted field measurements when data is plotted versus perpendicular field. All of these results point towards 2D surface conduction with a bulk background which is confirmed by the simple model used to explain high field magneto-transport data using surface and bulk channels in parallel.
http://hdl.handle.net/11244/14577
Topological insulator
Magneto-transport
Low temperature physics
Topological Transport in Sb Quantum Wells
oai:shareok.org:11244/18632018-04-17T15:23:36Zcom_11244_1col_11244_10476
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Benham, William Josephus,
author
1965
http://hdl.handle.net/11244/1863
Indians of North America West (U.S.)
Indians of North America Education.
Education, Administration.
Characteristics of programs in public schools serving Indian students from reservations in five western states /
oai:shareok.org:11244/14572018-04-16T18:47:51Zcom_11244_1col_11244_10476
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Coss, Richard H.,
author
1960
http://hdl.handle.net/11244/1457
Education, General.
Students.
Leadership.
Characteristics of teacher-selected leaders, peer-selected leaders, and non-leaders among ninth grade junior high school students /
oai:shareok.org:11244/60362018-04-25T04:55:41Zcom_11244_1col_11244_10476
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Hodgson, John W.
author
2000
The Shakespeare Industry is the meeting of the institutionalized Shakespeare with the forces of capitalism. The business of selling the works and name of the playwright is a centuries-old practice of which Shakespearean scholars are an integral part. The role of academics in literature and drama makes possible the ongoing conspicuous consumption of Shakespeare's works, a phenomenon largely ignored by the profession. Chapter One examines the relationships between the academy and several retail appropriations of Shakespeare. Chapter Two shows the symbiosis that arises between cinematic popularizers and academic guardianship. Chapter Three argues for a digital adaptation of Shakespeare by and for scholars as a means for re-appropriating Shakespeare for academic study.
http://hdl.handle.net/11244/6036
Literature Economic aspects.
Business Administration, Marketing.
Capitalism and literature.
Cinema.
Literature, English.
Shakespeare, William, 1564-1616 Adaptation.
$elling $hakespeare: Cultural literacy/cultural capital .
oai:shareok.org:11244/21562018-04-18T16:10:34Zcom_11244_1col_11244_10476
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High, Michael Devonne,
author
1967
http://hdl.handle.net/11244/2156
Ionization of gases.
Electrostatics.
Engineering, Aerospace.
Boundary layer.
Analytical solutions for a continuum, parallel-plate, electrostatic probe /
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