2024-03-28T15:21:05Zhttps://shareok.org/oai/requestoai:shareok.org:11244/267202020-02-24T16:20:56Zcom_11244_10460com_11244_6231col_11244_10462
Algorithm for optimal ship routing for seismic data collection
Willard, Edward Payson
Terrell, Marvin Palmer
Shamblin, James E.
Bentley, Wilson J.
Ferguson, Earl J.
Folks, J. Leroy
2016-01-27T16:47:23Z
2016-01-27T16:47:23Z
2016-01-27T16:47:23Z
1970-05
http://hdl.handle.net/11244/26720
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/267112020-02-24T16:20:56Zcom_11244_10460com_11244_6231col_11244_10462
Micromethod for the simultaneous determination of cortisol and corticosterone and its application to experimental and clinical conditions
Venkataseshu, Ganjam Kuppuswamy
Ewing, Larry
Desjardins, Claude
Beames, Calvin G., Jr.
Ebner, Kurt E.
2016-01-27T16:47:20Z
2016-01-27T16:47:20Z
2016-01-27T16:47:20Z
1970-05
http://hdl.handle.net/11244/26711
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/3397232023-10-04T05:00:16Zcom_11244_10460com_11244_6231col_11244_10462
Implications of school district reorganization for selected counties in Oklahoma
Jenlink, Patrick M.
St. Clair, Kenneth
Karman, Thomas
Stern, Ken
Arquitt, Ed
2023-10-03T15:21:44Z
2023-10-03T15:21:44Z
2023-10-03T15:21:44Z
1986-07
https://hdl.handle.net/11244/339723
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/213682020-02-24T16:20:57Zcom_11244_10460com_11244_6231col_11244_10462
Factors affecting plans for advanced degrees among American Home Economics Association members in 1979
Bierbower, Ruth Ann
Scruggs, Marguerite
Jorgenson, Elaine
Hirschlein, Beulah
Gaffney, Bettye J.
Wiggins, Lloyd
2015-11-09T22:38:07Z
2015-11-09T22:38:07Z
2015-11-09T22:38:07Z
1981-12
http://hdl.handle.net/11244/21368
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/332962020-02-24T16:20:57Zcom_11244_10460com_11244_6231col_11244_10462
Income risk and water quality, damage abatement and pesticide productivity, and abating spatial externalities in agriculture
Lehr, John A.
Mapp, Harry P.
Epplin, Francis M.
Stoecker, Arthur
Elliott, Ronald L.
2016-04-07T17:58:21Z
2016-04-07T17:58:21Z
2016-04-07T17:58:21Z
1997-05
http://hdl.handle.net/11244/33296
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/274402020-02-24T16:20:57Zcom_11244_10460com_11244_6231col_11244_10462
Construction and analysis of a long wavelength integrating sphere reflectometer
Williams, Roger Allen
Wiebelt, J. A.
Norton, J. R.
Rowe, A. M.
2016-02-01T22:06:57Z
2016-02-01T22:06:57Z
2016-02-01T22:06:57Z
1967-05
http://hdl.handle.net/11244/27440
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/71462020-05-21T16:34:11Zcom_11244_10460com_11244_6231col_11244_10462
Usefulness of goodwill impairment under SFAS No. 142 in reflecting the relative efficiency of firms
Vichitsarawong, Thanyaluk
Hansen, Don R.
Meek, Gary K.
Nabar, Sandeep
Tilley, Daniel S.
Scope and Method of Study: This study examines goodwill impairment under SFAS No. 142 whether it improves financial reporting quality by better reflecting the underlying relative efficiency of a firm. A firm's relative efficiency is measured by using Data Envelopment Analysis (DEA). The analysis is undertaken on three selected industries--durable manufacturers, computers, and services. First, Wilcoxon rank sum tests are used to compare the efficiency of a firm with other firms in the same industry (the cross-sectional analysis) and with similar firms over different periods (the longitudinal analysis). Second, Tobit and logistic regressions are applied to analyze factors affecting the percentage of goodwill impairment and a decision to report goodwill impairment. Finally, a logistic regression and a multivariate discriminant analysis (MDA) are used to assess the predictive ability of relative efficiency in determining potential goodwill impairment.
Findings and Conclusions: Results of Wilcoxon rank sum tests strongly support the hypothesis that impairment firms are relatively less efficient than non-impairment firms in the year of goodwill impairment reporting. Tobit and logistic regressions provide evidence that lagged relative efficiency of firms is negatively associated with the percentage of goodwill impairment and a decision to report goodwill impairment, after controlling for managerial reporting incentives. The inferences are robust to the choice of various input/output variables in the DEA model. The results suggest that the relative efficiency is an important determinant of goodwill impairment. Finally, results of logistic regressions used to assess the predictive ability of relative efficiency indicate that measures of relative efficiency can be used to identify the likelihood of goodwill impairment. The MDA models including relative efficiency measures correctly predict more than 50 percent of the actual impairment. These findings provide opportunity for future research to include a measure of firm overall performance in the prediction model. Overall, goodwill impairment under SFAS No. 142 can reflect the decline in relative efficiency of firms, thereby achieving the FASB's objective.
2013-11-26T08:31:17Z
2013-11-26T08:31:17Z
2013-11-26T08:31:17Z
2007-07
http://hdl.handle.net/11244/7146
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/453692020-02-24T16:20:57Zcom_11244_10460com_11244_6231col_11244_10462
Negotiating a curriculum balance: Perceptions of special education teachers and administrators regarding alternate assessments in Oklahoma
Modenbach, Joy Lynn
Brown, Pamela
Davis, C. Robert
Harris, Ed
Bailey, Lucy
Ramsey, Jon
This qualitative study sought to understand how teachers and administrators navigate the state and federal requirements for students with severe and profound disabilities in regards to alternate standards and assessments. Special education teachers must balance the required curriculum while continuing to meet the physical and emotional needs of students with severe and profound disabilities. Seven special education teachers and three administrators were interviewed individually in non-school settings, usually coffee shops. Teachers and administrators work diligently each day to support the students and meet their academic, social, emotional and physical needs.
During the research and data collection phases of this study the stories that emerged illuminated the daily dedication, compassion, and perseverance of the teachers. The researcher used a constructivist perspective and Ethic of Care theory (Noddings, 2006) to analyze data. Data analysis revealed emergent themes including: frustration, unreasonable expectations, balance of competing expectations, time balance, assistive technology and oppression and Othering.
Teachers feel pulled between following the state and federal requirements while also meeting the needs of the students they serve. The alternate standards and assessments often do not fully inform the teacher or parent regarding the process the student is making because the standards and assessments are unachievable to the student being assessed. Implications include the need for providing more training for teachers aligned to the assessment and standards with a continuum of specific strategies for each standard allowing teachers to better balance the planned curriculum with the functional level of each student and changing the expectation from a competitive structure to tracking individual progress.
2016-09-29T18:46:02Z
2016-09-29T18:46:02Z
2016-09-29T18:46:02Z
2015-12
http://hdl.handle.net/11244/45369
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/260662020-02-24T16:20:57Zcom_11244_10460com_11244_6231col_11244_10462
Attitude change of selected advantaged and less-advantaged Oklahoma youth in an agricultural careers program
Quarles, Thomas Adrain
Key, James P.
Terry, Robert
Juby, Marcus
St. Clair, Kenneth
2016-01-25T19:18:44Z
2016-01-25T19:18:44Z
2016-01-25T19:18:44Z
1977-12
http://hdl.handle.net/11244/26066
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/183242020-02-24T16:20:57Zcom_11244_10460com_11244_6231col_11244_10462
Four wave mixing spectroscopy of Cr3+ and/or Nd3+-doped mixed garnet crystals
Hashmi, Faqir Mian
Powell, Richard C.
Bandy, Donna Kay
Wicksted, James P.
McKeever, S. W. S.
Thompson, Donald L.
2015-09-17T17:45:01Z
2015-09-17T17:45:01Z
2015-09-17T17:45:01Z
1992-07
http://hdl.handle.net/11244/18324
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/3285992021-02-23T06:17:19Zcom_11244_10460com_11244_6231col_11244_10462
Effect of attentional control on the relationship between worry and stress responding
Frosio, Kristen Elizabeth
Grant, DeMond M.
Byrd-Craven, Jennifer
Wells, Tony T.
Malone, Chad
Worry is a form of negative perseverative thinking and a maladaptive cognitive emotion regulation strategy associated with multiple forms of psychopathology (Nolen-Hoeksema & Watkins, 2011; Cisler et al., 2010). Perseverative worry may be exacerbated by deficits in attentional control (Armstrong et al., 2011). Attentional control is the ability to voluntarily shift and disengage attention while utilizing cognitive resources selectively to inhibit the processing of extraneous or irrelevant stimuli (Derryberry & Reed, 2002; Friedman & Miyake, 2004). Current influential theories propose that individuals high in attentional control are able to use attention to regulate their emotions (Oschner & Gross, 2008). However, low attentional control may be a cognitive vulnerability factor for developing pathological forms of anxiety due to a broad failure to deploy regulatory processes that directly influence changes in physiological stress responding (Armstrong et al., 2011). The current study evaluated whether trait attentional control mediated the relationship between trait worry and cortisol stress response after a psychosocial stressor. Participants (N=95) completed several self-report measures, the Trier Social Stress Test, and provided three saliva samples to measure cortisol stress response throughout the experiment. Results indicated that attentional control did not mediate the relationship between trait worry and cortisol stress response. However, exploratory analyses revealed that attentional control did moderate the relationship between cortisol stress response and self-reported acute worry during the stress recovery phase. Specifically, at low levels of attentional control, decreases in cortisol stress response predicted increases in acute worry levels post-stressor. These findings point toward alternative cognitive control measures better explaining the relationship between trait worry and cortisol stress responding (e.g. working memory, attentional biases). These findings also point toward attentional control potentially impacting the relationship between worry and physiological responses to stress. Specifically, worry may contribute to alterations in attentional control and stress, only to perpetuate enhanced negative feedback sensitivity of the HPA-axis and maintain the cycle of cortisol dysregulation-but only at low levels of attentional control.
2021-02-22T22:24:01Z
2021-02-22T22:24:01Z
2021-02-22T22:24:01Z
2020-08
https://hdl.handle.net/11244/328599
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/3170422020-02-24T16:20:57Zcom_11244_10460com_11244_6231col_11244_10462
Modeling and simulation of a fixed-bed reactor-regenerator system for H2S removal
Yoo, Hong Jin
Johannes, Arland H.
Robinson, Robert L.
Gasem, K. A. M.
Veenstra, John N.
2019-01-11T21:08:14Z
2019-01-11T21:08:14Z
2019-01-11T21:08:14Z
1993-05
https://hdl.handle.net/11244/317042
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/244162020-02-24T16:20:57Zcom_11244_10460com_11244_6231col_11244_10462
Success and fecundity of Amblyomma americanum (L.) on Brahman, Hereford, and Brahman x Hereford crossbred heifers
Garris, Glen Irwin
Hair, J. Alexander
Sauer, John R.
Homer, John T.
Buckner, Ralph G.
McNew, Ronald W.
2016-01-12T16:01:11Z
2016-01-12T16:01:11Z
2016-01-12T16:01:11Z
1979-12
http://hdl.handle.net/11244/24416
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/203492020-02-24T16:20:57Zcom_11244_10460com_11244_6231col_11244_10462
Indices of zinc status in adolescent females
Sandoval, Wendy McGovern
Kenney, Mary Alice
Winterfeldt, Esther
Scruggs, Marguerite
Owens, F. N.
2015-10-19T21:58:38Z
2015-10-19T21:58:38Z
2015-10-19T21:58:38Z
1982-07
http://hdl.handle.net/11244/20349
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/338022020-02-24T16:20:57Zcom_11244_10460com_11244_6231col_11244_10462
Personality type and retention within the hospitality industry
Martin, Lynda J.
Kavanaugh, R. R.
Ebro, Lea L.
Leong, J. K.
Warde, W. D.
2016-04-25T20:56:21Z
2016-04-25T20:56:21Z
2016-04-25T20:56:21Z
1996-05
http://hdl.handle.net/11244/33802
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/327512020-02-24T16:20:57Zcom_11244_10460com_11244_6231col_11244_10462
Investigation of selection indexes in swine populations
Cunningham, Peter John
Omtvedt, Irvin T.
Whiteman, Joe V.
Bee, David E.
Turman, E. J.
2016-03-09T22:48:35Z
2016-03-09T22:48:35Z
2016-03-09T22:48:35Z
1969-05
http://hdl.handle.net/11244/32751
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/3168942020-02-24T16:20:57Zcom_11244_10460com_11244_6231col_11244_10462
Contingency model for selecting an information system prototyping strategy
Hardgrave, Billy Charles
Wilson, Rick
Eastman, Kenneth K.
Dalal, N.
Dorr, Patrick B.
Kletke, Marilyn G.
2019-01-11T19:24:17Z
2019-01-11T19:24:17Z
2019-01-11T19:24:17Z
1993-07
https://hdl.handle.net/11244/316894
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/317352020-02-24T16:20:57Zcom_11244_10460com_11244_6231col_11244_10462
Identification of competencies in beginning clothing construction for college level
Miller, Keren Payne
Jorgenson, Elaine
Sisler, Grovalynn
Pestle, Ruth
Frazier, William D.
2016-02-25T15:29:07Z
2016-02-25T15:29:07Z
2016-02-25T15:29:07Z
1974-12
http://hdl.handle.net/11244/31735
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/313892020-02-24T16:20:57Zcom_11244_10460com_11244_6231col_11244_10462
Early effects of experimental cryptorchidism upon rat testis metabolism
Noble, Donald James
Beames, Calvin G., Jr.
Newcomer, W. S.
Ebner, K. E.
Venable, John H.
2016-02-24T15:26:12Z
2016-02-24T15:26:12Z
2016-02-24T15:26:12Z
1973-12
http://hdl.handle.net/11244/31389
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/243002020-02-24T16:20:57Zcom_11244_10460com_11244_6231col_11244_10462
Double-blind investigation of cognitive factors in muscular biofeedback
McSwain, Nancy Hall
Murphy, Philip J.
Sandvold, Kenneth D.
Rambo, William W.
Perkins, Larry M.
Schlottmann, Robert S.
2016-01-12T14:37:48Z
2016-01-12T14:37:48Z
2016-01-12T14:37:48Z
1978-07
http://hdl.handle.net/11244/24300
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/3371232023-03-17T05:00:13Zcom_11244_10460com_11244_6231col_11244_10462
Examining teacher effectiveness through value-added scores and observed teaching practices
Castro Braun, Amy
Curry, Katherine
Harris, Ed
Self, Mary Jo
Ormsbee, Christine
Value-added assessment is designed to measure teacher contributions to student achievement in order to promote effective teaching (Battelle for Kids, 2011b; Darling-Hammond et al., 2012; Lee, 2011). When value-added assessment is used, research indicates that in some cases effective teaching is promoted, but in other cases it is not (Amrein-Beardsley & Collins, 2012; Darling-Hammond et al., 2012; Betebenner et al., 2012; McCaffrey & Hamilton, 2007; Quattrochi & Chapman, 2010). One reason that effective teaching may not be promoted is value-added models are not specifically designed to be diagnostic tools of effective teaching (Betebenner et al., 2012; Darling-Hammond, et al., 2012; Goe, 2008; RAND Corporation, 2004). Empirical evidence about which specific teaching practices improve student learning is lacking and additional research is needed (Goe, 2008; RAND Corporation, 2004; Stronge, Ward, & Grant, 2011).
The purpose of this study was to examine the relationship between value-added scores for elementary, junior high, and high school teachers of English/language arts, reading, and/or math in a large suburban Oklahoma public school district and administrators’ ratings of their specific teaching practices as measured by the Tulsa Model for Observation and Evaluation. There were small, positive correlations that were statistically significant for all teachers between overall value-added scores and overall evaluation scores on the Tulsa Model rubric for both school years. This result indicates that higher ratings of effective teaching were slightly associated with higher overall value-added scores and increased student achievement levels for this sample. Only two of the Tulsa Model rubric domains – classroom management and instructional effectiveness – had statistically significant relationships with value-added scores. This is attributed to the student-focused nature of these domains in contrast to the professional growth, interpersonal skills, and leadership domains. The specific teaching practices of effective teachers in the areas of Preparation, Discipline, Modeling, Monitoring, and Adjusts Based Upon Monitoring were linked to increased value-added scores.
2023-03-16T21:14:21Z
2023-03-16T21:14:21Z
2023-03-16T21:14:21Z
2022-05
https://shareok.org/handle/11244/337123
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/330722020-02-24T16:20:57Zcom_11244_10460com_11244_6231col_11244_10462
Survey of planning resources available to local administrators in planning for vocational education programs
Tontz, Len Elmer
Jungers, Richard P.
St. Clair, Kenneth
Brann, Ralph A.
Hopkins, Charles O.
2016-03-10T14:55:43Z
2016-03-10T14:55:43Z
2016-03-10T14:55:43Z
1976-07
http://hdl.handle.net/11244/33072
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/328242020-02-24T16:20:57Zcom_11244_10460com_11244_6231col_11244_10462
Heat and mass transfer equations for predicting evaporation reduction by monolayers
Manges, Harry Leo
Crow, F. R.
Schroeder, E. W.
Garton, James E.
Wiebelt, J. A.
Stone, John F.
2016-03-09T22:49:00Z
2016-03-09T22:49:00Z
2016-03-09T22:49:00Z
1969-08
http://hdl.handle.net/11244/32824
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/78352020-02-24T18:07:13Zcom_11244_10460com_11244_6231col_11244_10462
Investigations of a Precast Bridge Deck System
Investigations of a precast bridge deck system
Ghashgesh, Mostafa Farhat
Ley, M. Tyler
Russell, Bruce W.
Emerson, Robert N.
Good, J. Keith
Scope and Method of Study:
Improved methods of bridge deck construction are greatly needed. Bridge decks are often the first element to require repair or replacement because of its direct exposure to the elements and tire wear. This dissertation presents a new precast overhang system that allows for significant improvements in construction speed, economy, and safety while meeting the AASHTO requirements and providing a serviceable structure. Welded rebar mats were also investigated to replace tied reinforcing bars with partial depth panels to improve the economy, constructability, and construction speed of bridge decks. Bridge decks have been constructed and tested that have used tied reinforcing and welded rebar mats. A self-written non-linear finite element program was created to model the tested specimens and provide an alternative, economic, and time-saving tool. Strut-and-tie modeling as well as design provisions of three design codes were also used to predict failure loads.
Findings and Conclusions:
Satisfactory results were obtained, which indicate that the system will allow a support beam to be removed in certain circumstances. The improved ability of the wire mat to help resist cracking could allow an owner either greater construction tolerances for the reinforcement placement or improved crack control and hence long term durability. The proposed FE program has proven successful at modeling the performance of concrete bridge decks with interior and overhang loading. For these specimens it was found that a shear reduction factor β of 0.20 showed the best correlation with the experimental data. Additionally, it is found that the STM is the closest, in estimating failure loads and predicting the failure sequence and mode as well. FIP design recommendation was found the closest to experiments. Furthermore, it satisfactorily estimated the failure modes experimentally observed in all specimens.
2013-12-10T18:05:33Z
2013-12-10T18:05:33Z
2013-12-10T18:05:33Z
2012-07
http://hdl.handle.net/11244/7835
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/65462020-05-21T16:26:03Zcom_11244_10460com_11244_6231col_11244_10462
Selecting among alternative production functions, effect of lime cost on optimal nitrogen levels and vertical integration in the West African cotton sector
Tumusiime, Emmanuel
Brorsen, B. Wade
Epplin, Francis
Biermacher, Jon
Vitale, Jeffrey
Zhang, Hailin
Scope and Method of Study:
This dissertation consists of three essays: The first essay determines the optimal level of N fertilizer for rye-ryegrass pasture using yield functions estimated with different functional forms that assume parameters are either nonstochastic or stochastic. Three yield functions were estimated: linear response plateau, quadratic, and Spillman-Mitscherlich.
The second paper determines the effect of considering the cost of lime on recommendations about optimal levels of N. Yield response and soil pH change functions were estimated and used to determine the optimal levels of N and lime. The study also developed a new version of a linear response plateau function that allows the yield plateau to vary by year with respect to nitrogen but not soil pH.
The third paper provides an economic explanation of the existence of parastatal vertical integration market structures in the cotton sector of West Africa, and contrasts it with other market structure alternatives in terms of welfare and sector efficiency.
Findings and Conclusions:
In the first essay, nonstochastic models are rejected in favor of stochastic parameter models. The stochastic models lead to smaller recommended levels of N, but the economic benefits of using fully stochastic models are small since expected profit functions are relatively flat for the stochastic models.
In the second essay, considering the cost of lime reduced the optimal level of N by as much as 11.3%. Acidification potential due to N fertilizer increased nonlinearly as N rate increased. N acidification appears to be more severe with N application rates above consumptive potential of the crop than with N that is used by the plant.
In the third essay, due to credit and or factor market constraints, vertical integrated cotton parastatals increase sector welfare and efficiency by supplying inputs to overcome credit constraints. Surplus sharing between the grower and the integrator is significantly shifted towards the cotton company. Removing the integrated cotton parastatals in favor of a free market structures would result in little cotton being produced.
2013-11-26T08:22:06Z
2013-11-26T08:22:06Z
2013-11-26T08:22:06Z
2011-12
http://hdl.handle.net/11244/6546
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/75722020-05-21T16:18:54Zcom_11244_10460com_11244_6231col_11244_10462
Using search consultants in superintendent searches from the board member perspective
Simpson, Michael L.
Krumm, Bernita
Harris, Ed
Stern, Ken
Brown, Pam
Scope and Method of Study: Qualitative research to collect data from two sources: 1) Face-to-face interviews with school board members representing four Oklahoma School Districts; 2) Newspaper articles.
Findings and Conclusions: Data from the study indicate that time availability and personnel expertise are determining factors in the decision to select a search consultant. The consultant advised each board about issues of employment law and appropriate interviewing practices. Despite the assistance of an outside person with expertise, the process involved more work and much greater time than anticipated. Superintendents in the sample were selected from the available candidate pool, but no evidence existed that they were recruited; selections were from a pool of candidates who submitted applications. Results supported school districts desiring to hire an internal candidate do not need the services of a search consultant if a quality candidate is available. Board members believed the presence of a consultant in the process provided connections to improve the candidate pool while also bringing credibility to the process. All board members indicated they would support the use of a consultant again in the event of a superintendent vacancy.
The decision making models of Wayne Hoy and John Tarter guided the theoretical framework of the study. The Satisficing Theory of the Administrative Model of decision making along with the Shared Decision Making model were relevant to this study. Satisficing Theory looks for satisfactory solutions to a problem; final selections were limited to candidates who showed interest in the position through submitting an application; final selections were the best of the satisfactory options. Each school district had a component of involvement for the board, staff or community based on needs identified by the board. Boards shared a segment of their decision making process with an appropriate group.
2013-11-26T08:34:53Z
2013-11-26T08:34:53Z
2013-11-26T08:34:53Z
2010-12
http://hdl.handle.net/11244/7572
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/76652020-02-24T18:06:46Zcom_11244_10460com_11244_6231col_11244_10462
Reproductive performance, early progeny wastage, and cervix response using fixed-time intrauterine or transcervical insemination or natural service following synchronization of estrus and ovulation in goats
Loetz Urquiola, Erick R.
Malayer, Jerry R.
Dawson, Lionel
DeSilva, Udaya
Gipson, Terry
McFarlane, Dianne
Scope and Method of Study:
Assisted reproductive technologies provide necessary tools for improving farm revenue. Hormonal estrus and ovulation synchronization, while decreasing costs of production and allowing for economies of scale advantage, reduce reproductive efficiency. A randomized experimental prospective field and clinical trial using ultrasound imaging was conducted to determine the effect of estrus/ovulation synchronization protocol on goat reproductive performance, prenatal and perinatal losses, and cervix response of dairy, meat and fiber production phenotypes using fixed-time insemination by different breeding procedures.
Findings and Conclusions:
Compared to natural service most reproductive efficiency traits used to describe goat reproductive performance were negatively influenced by the assisted reproductive technologies implemented. When hormonal estrus/ovulation synchronization protocols are used in conjunction with fixed-time breeding initial acceptable conception rates are reduced by time of parturition, hence kidding rates are lower across breeds, ages, and parity categories. The decrease in reproductive performance is mainly due to short P4 exposure combined with fixed-time breeding rather than concurrent use of eCG and hCG, although the use of the chorionic gonadotropins resulted in high early progeny wastage particularly embryonic mortality. Goats displayed a pattern of early rather than late progeny loss. Prenatal losses were influenced by: breed, age and time of exposure to P4. Increased prenatal losses were influenced by breeding procedures particularly excessive manipulation during trans-cervical artificial insemination. Short P4 exposure increased breeding time investment, made less likely to traverse the cervix, and thus influenced the site of semen deposition. The use of real-time ultrasound imaging for pregnancy diagnosis at 45 days post-breeding resulted in high sensitivity, accuracy, and precision. However, the technology was not reliable to establish the number of embryos in non-tractable goat production phenotypes and/or parity categories under field conditions.
2013-11-26T08:35:16Z
2013-11-26T08:35:16Z
2013-11-26T08:35:16Z
2012-05
http://hdl.handle.net/11244/7665
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/272902020-02-24T16:20:58Zcom_11244_10460com_11244_6231col_11244_10462
Comparison of two review methods for algebra and trigonometry at Wisconsin State University, LaCrosse
Christensen, Roland Walter
Marsden, W. Ware
Berg, Milton E.
Goff, Gerald K.
Troxel, Vernon
2016-02-01T22:05:46Z
2016-02-01T22:05:46Z
2016-02-01T22:05:46Z
1967-05
http://hdl.handle.net/11244/27290
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/68012020-05-21T16:30:10Zcom_11244_10460com_11244_6231col_11244_10462
Understanding the rhythms of email processing strategies in a network of knowledge workers
Gupta, Ashish
Sharda, Ramesh
Wilson, Rick L.
Kletke, Marilyn
Kamath, Manjunath
Scope and Method of Study: While emails have improved the communication effectiveness of knowledge workers, they have also started to negatively impact their productivity. Emails have long been known to provide value to the organization, but the influence of the overwhelming amount of information shared through emails and the inefficiencies surrounding the everyday use of emails at work has remained almost completely unanalyzed so far. Frequent announcements of new emails and then a user's checking her email leads to an escalation in the interruption issues, the resulting overall effectiveness derived from email communication needs to be re-explored. This study uses a computational modeling approach to understand how various combinations of timing-based and frequency-based email processing strategies adopted within different types of knowledge networks can influence average email response time, average primary task completion time, and the overall effectiveness, comprising value-effectiveness and time-effectiveness, in the presence of interruptions. Earlier research on the topic has focused on individual knowledge workers. This study performs a network-level analysis to compare different sender-receiver relationships to assess the impact of different overall email policies on the entire network. Computational models of three different email exchange networks were developed, namely, homogeneous networks with higher users of email, homogeneous networks with low users of email and heterogeneous networks utilizing various combinations of email strategies. A new method, referred to as forward and reverse method, to evaluate and validate model parameters is also developed.
Findings and Conclusions: Findings suggest the choice of email checking policy can impact time and value effectiveness. For example, rhythmic email processing strategies lead to lower value-effectiveness but higher time-effectiveness for all types of networks. Email response times are generally higher with rhythmic policies than with arrhythmic policies. On the other hand, primary task completion times are usually lower with rhythmic policies. On an average, organizations could potentially save 3 to 6 percent of overall time spent per day by using email strategies that are more time effective but could lose 2.5 to 3.5 percent in the communication-value. These values cumulate into significant time saving or value loss for large organizations.
2013-11-26T08:25:31Z
2013-11-26T08:25:31Z
2013-11-26T08:25:31Z
2007-05
http://hdl.handle.net/11244/6801
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/3394272023-09-07T05:00:21Zcom_11244_10460com_11244_6231col_11244_10462
Free extensions of partial ℓ-groups
Decloss, Robert R.
Powell, Wayne
Noell, Alan
Bertholff, Dennis
McConnell, Mark
Hedrick, George
2023-09-06T21:52:08Z
2023-09-06T21:52:08Z
2023-09-06T21:52:08Z
1994-12
https://hdl.handle.net/11244/339427
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/302562020-02-24T16:20:58Zcom_11244_10460com_11244_6231col_11244_10462
Production and human inhalation of plutonium labelled particles in the sub-micron range
Waite, David Alan
West, John B.
Norton, J. R.
Lowery, R. L.
2016-02-16T17:28:03Z
2016-02-16T17:28:03Z
2016-02-16T17:28:03Z
1972-05
http://hdl.handle.net/11244/30256
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/3390512023-09-01T05:00:15Zcom_11244_10460com_11244_6231col_11244_10462
Performance of light vs. heavy weight steers grazing Plains Old World bluestem at three stocking rates
Ackerman, Callan J.
Horn, Gerald W.
Purvis, Hebbie T.
Lalman, David
Fuhlendorf, Sam D.
2023-08-31T20:24:03Z
2023-08-31T20:24:03Z
2023-08-31T20:24:03Z
1999-07
https://hdl.handle.net/11244/339051
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/468552020-02-24T16:20:58Zcom_11244_10460com_11244_6231col_11244_10462
Black box system identification of a nonlinear system for the design of model based control by multimodels
Lee, Seok-Beom
Yen, Gary
Whiteley, James R.
Hagan, Martin T.
2016-11-18T20:55:57Z
2016-11-18T20:55:57Z
2016-11-18T20:55:57Z
2002-05
http://hdl.handle.net/11244/46855
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/142872020-02-24T16:20:58Zcom_11244_10460com_11244_6231col_11244_10462
Relative effect of penalty magnitudes on compliance: An experimental examination of deterrence
Crosser, Rick Lynn
Usry, Milton F.
Kimbrell, Janet I.
Hammer, Lawrence H.
Warde, W. D.
2015-04-15T14:15:21Z
2015-04-15T14:15:21Z
2015-04-15T14:15:21Z
1987-12
http://hdl.handle.net/11244/14287
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/206212020-02-24T16:20:58Zcom_11244_10460com_11244_6231col_11244_10462
Chaotic vortical motion in the near region of a plane jet
Cutbirth, James W.
Moretti, Peter M.
Lowery, R. L.
Yhajar, A. J.
2015-10-20T19:55:47Z
2015-10-20T19:55:47Z
2015-10-20T19:55:47Z
1991-12
http://hdl.handle.net/11244/20621
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/144102020-02-24T16:20:58Zcom_11244_10460com_11244_6231col_11244_10462
Photoactivated DNA cleavage, enzyme inactivation, bacterial inhibition, and viral inactivation by the cotton phytoalexin 2,7-dihydroxycadalene, isolation of phytoalexin-resistant mutants of the cotton pathogen Xanthomonas campestris pv. malvacearum, and characterization of the pathogen's mutability
Sun, Tzeli Julia
Essenberg, Margaret
Melcher, Ulrich
Gholson, Robert K.
Craven, Rebecca C.
Mort, Andrew J.
Essenberg, Richard C.
Mitchell, Earl D., Jr.
2015-04-15T14:16:39Z
2015-04-15T14:16:39Z
2015-04-15T14:16:39Z
1987-07
http://hdl.handle.net/11244/14410
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/340652020-02-24T16:20:58Zcom_11244_10460com_11244_6231col_11244_10462
Contracting rational curves on smooth complex threefolds
Zerger, Thomas E.
Katz, Sheldon
Cogdell, James W.
Crauder, Bruce
Zierau, Roger
George, K. M.
2016-04-25T21:16:53Z
2016-04-25T21:16:53Z
2016-04-25T21:16:53Z
1996-05
http://hdl.handle.net/11244/34065
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/189452020-02-24T16:20:58Zcom_11244_10460com_11244_6231col_11244_10462
Economic analysis of farmland values in western Oklahoma
Warmann, Gerald William
Nelson, James R.
Tweeten, Luther G.
Walsh, Stephen J.
Kletke, Darrel D.
2015-09-25T16:24:23Z
2015-09-25T16:24:23Z
2015-09-25T16:24:23Z
1984-12
http://hdl.handle.net/11244/18945
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/3177692020-02-24T16:20:58Zcom_11244_10460com_11244_6231col_11244_10462
Evaluation of the Aphidius colemani-Rhopalosiphum padi banker plant system in greenhouse biological control
Payton Miller, Tracey Lee
Rebek, Eric J.
Frank, Steve
Schnelle, Mike
Giles, Kris
Banker plants are mobile habitats that provide alternate hosts or food for commercially available natural enemies. As a biological control strategy, banker plants offer a novel non-chemical approach to managing commonly encountered pests in the greenhouse. Most banker plants that target aphids consist of a graminaceous plant, a nonpest cereal grain aphid, and a parasitoid that attacks both the non-pest and pest aphids occurring on crop plants. Use of banker plants may provide more effective, long-term pest control than pesticide applications, but both can be combined. Banker plant systems have been used commercially in areas of the United States, Canada, Europe, and Asia. One of my goals was to ascertain if banker plants are a viable aphid pest management technique in the southwestern United States. The following study is an overview of the history of biological control in enclosed environments, the Aphidius colemani-Rhopalosiphum padi banker plant system in Oklahoma, pesticides compatible with A. colemani natural enemies, the costs and benefits of the Aphidius colemani-Rhopalosiphum padi system to manage aphid pests, and alternative species of grasses for potential use as banker plants.
2019-03-25T21:59:32Z
2019-03-25T21:59:32Z
2019-03-25T21:59:32Z
2018-05
https://hdl.handle.net/11244/317769
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/193262020-02-24T16:20:58Zcom_11244_10460com_11244_6231col_11244_10462
Status of interagency linkages in community education programs in Arkansas and Oklahoma as perceived by program directors
Eleby, Eugene Louie, Jr.
Johnson, Deke
St. Clair, Kenneth
Sterns, Kenneth
Perkins, Larry M.
2015-10-05T16:08:06Z
2015-10-05T16:08:06Z
2015-10-05T16:08:06Z
1983-05
http://hdl.handle.net/11244/19326
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/73702020-05-21T15:21:56Zcom_11244_10460com_11244_6231col_11244_10462
Faculty involvement in successful institutional accreditation: Perspectives through the lens of Etzioni's compliance theory
Diede, Nancy R.
Hyle, Adrienne
Mendez, Jesse
Bull, Kay
Harris, Ed
Scope and Method of Study: This is a qualitative study about faculty engagement with their college's and university's assessment programs viewed through Etzioni's Compliance theory.
Findings and Conclusions: All three educational institutions visited were perceived as using normative power when viewed in relation to assessment. Two of the institutions used both normative and remunerative power. The use of two or even all three types of influence (normative, remunerative and coercive) are not an unexpected finding (Etzioni, 1968). When normative power was used, participants from all three institutions were able to provide examples of moral involvement with assessment. Faculty engagement had occurred because it was the right thing to do and their involvement was recognized and praised by the administration. In the matter of assessment, all three organizations used their normative power in an effective manner.
When remunerative power was used some participants responded with calculative behavior while others did not. This incongruency generally does not lead to an effective organization (Etzioni, 1975). Only one institution was perceived as using some form of coercive power. The expected alienative response may have been observed but overall the institution was not described as using primarily coercive power in order to motivate faculty to become involved with assessment.
Additional analyses of the participants' responses to the questions corroborated the importance of a faculty driven assessment program with support and collaboration between administration and faculty (Cross 1997; McEady, 2006; Priddy, 2007). Faculty who were engaged with assessment were cognizant of the value of assessment and its relationship to the accrediting agencies and stakeholders call for accountability of student learning.
2013-11-26T08:34:22Z
2013-11-26T08:34:22Z
2013-11-26T08:34:22Z
2009-12
http://hdl.handle.net/11244/7370
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/329502020-02-24T16:20:58Zcom_11244_10460com_11244_6231col_11244_10462
Initial heterosexual attraction as a function of interpersonal need compatibility
Freemon, Jan Edward
Fromme, Donald K.
Helm, Bob
Sandvold, Kenneth D.
Allen, Donald E.
Jones, Warren H.
2016-03-10T14:54:28Z
2016-03-10T14:54:28Z
2016-03-10T14:54:28Z
1976-12
http://hdl.handle.net/11244/32950
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/330672020-02-24T16:20:58Zcom_11244_10460com_11244_6231col_11244_10462
Effects of participating in an aerobic training program on male faculty members and administrators at Oklahoma State University
Thomas, Danny LeRoy
Harrison, Aix B.
Abercrombie, Betty
Bayless, John G.
St. Clair, Kenneth
2016-03-10T14:55:40Z
2016-03-10T14:55:40Z
2016-03-10T14:55:40Z
1976-05
http://hdl.handle.net/11244/33067
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/312872020-02-24T16:20:58Zcom_11244_10460com_11244_6231col_11244_10462
Osmoregulation in the aquatic Hemiptera: Corisella edulis Champion and Buenoa margaritacea Torre-Bueno
Frick, John Henry
Sauer, John R.
Drew, William A.
Beames, Calvin G., Jr.
Dorris, Troy C.
2016-02-24T15:25:40Z
2016-02-24T15:25:40Z
2016-02-24T15:25:40Z
1973-07
http://hdl.handle.net/11244/31287
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/337162020-02-24T16:20:58Zcom_11244_10460com_11244_6231col_11244_10462
Studies on the hemorrhagic toxin, proteinase H, from Crotalus adamanteus (Eastern diamondback rattlesnake) venom
Anderson, Steffan Gregory
Ownby, Charlotte L.
Blankemeyer, James T.
Breazile, J. E.
McCann, Joseph P.
Stein, Larry E.
2016-04-25T20:55:45Z
2016-04-25T20:55:45Z
2016-04-25T20:55:45Z
1996-07
http://hdl.handle.net/11244/33716
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/242812020-02-24T16:20:58Zcom_11244_10460com_11244_6231col_11244_10462
Comparison of junior college educators' perceptions toward postsecondary technical-occupational programs
Keck, Robert V.
Phillips, Donald S.
Briggs, Lloyd D.
Dugger, Cecil W.
Robinson, Donald W.
Allen, Donald E.
2016-01-12T14:37:34Z
2016-01-12T14:37:34Z
2016-01-12T14:37:34Z
1978-05
http://hdl.handle.net/11244/24281
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/343742020-02-24T16:20:58Zcom_11244_10460com_11244_6231col_11244_10462
Sequential measurements of soil NH4-N and NO3-N from two-long term fertility experiments with variable N rates, and distribution of soil profile NO3-N under flooded conditions using a bromide tracer
Ascencio, Edgar Noel
Raun, William
Taliaferro, C. M.
Payton, Mark E.
Johnson, Gordon V.
2016-05-03T14:28:12Z
2016-05-03T14:28:12Z
2016-05-03T14:28:12Z
1995-12
http://hdl.handle.net/11244/34374
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/441212020-02-24T16:20:58Zcom_11244_10460com_11244_6231col_11244_10462
Gender differences in oxygen consumption, forward trunk lean and rating of perceived exertion during load carriage
Redus, Brady Steven
Jacobson, Bert
Edgley, Betty M.
Edwards, Steven W.
Nolan, Robert E.
2016-07-19T21:06:35Z
2016-07-19T21:06:35Z
2016-07-19T21:06:35Z
2004-05
http://hdl.handle.net/11244/44121
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/77752020-02-24T16:20:58Zcom_11244_10460com_11244_6231col_11244_10462
Truckload freight transportation utilizing relay points to improve the driving job
Melton, Kerry D.
Ingalls, Ricki
Kamath, Manjunath
Balasundaram, Balabhaskar
Epplin, Francis
We propose a relay point based approach on a highway transportation network to obtain robust solutions for the truck driver turnover and driver retention problem. We exploit the characteristics of the driver routing problem and truckload freight moved over a highway transportation network and introduce a new approach to route drivers over shorter distances and to move trailers continuously while holistically considering important performance measures as related to the truck driver, transportation carrier, and customer. The amount of time drivers spend driving and the time spent at home are exploited to determine a balance between driver home time and driver pay. A mathematical program is introduced to determine where relay points should be more optimally located to exchange equipment, perform equipment maintenance, access resting facilities, etc. while considering important costs related to transporting truckload freight. The intention is to propose a method to improve the truckload driving job but not at the expense of the transportation carrier and customer. We discuss some of the desirable characteristics of this approach and also investigate the sensitivity of the solutions via a numerical experiment.
2013-12-10T18:05:04Z
2013-12-10T18:05:04Z
2013-12-10T18:05:04Z
2012-07
http://hdl.handle.net/11244/7775
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/189272020-02-24T16:20:58Zcom_11244_10460com_11244_6231col_11244_10462
Bootstrapping a time series model
Son, Mun-Shig
Holbert, Don
Warde, W. D.
Stewart, William H.
Rea, John D.
2015-09-25T16:24:13Z
2015-09-25T16:24:13Z
2015-09-25T16:24:13Z
1984-07
http://hdl.handle.net/11244/18927
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/3169862020-02-24T16:20:58Zcom_11244_10460com_11244_6231col_11244_10462
Comparison of experiential processing methods with the ropes course experience and their effects on anxiety
Ross, Kyle
Carlozzi, Alfred
Dodder, Richard
Perry, Katye M.
Boswell, Donald L.
2019-01-11T21:07:52Z
2019-01-11T21:07:52Z
2019-01-11T21:07:52Z
1993-12
https://hdl.handle.net/11244/316986
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/65622020-05-21T16:26:13Zcom_11244_10460com_11244_6231col_11244_10462
Effects of a process writing curriculum on students in an agricultural communications course: An experimental study
Kelemen, Danna Ryan
Cartmell, Dwayne
Sitton, Shelly R.
Leising, James
Caniglia, Beth S.
Scope and Method of Study: This study sought to examine if the use of a process writing model curriculum improved the writing performance of students in an agricultural-context communication course. The scope of this study was confined to students enrolled in a course section of AGCM 3103 during the 2005 fall semester at Oklahoma State University. The method of research was an experimental study using a post-test only control group design.
Findings and Conclusions: The findings of this study indicated the majority of students enrolled in the AGCM 3103 course were male, 21 years of age, and exhibited no difference in their writing ability. The process writing model curriculum was shown to have a statistically significant effect on the students' overall grade in the course, as well as on the two post-test writing assignment measures. There was little difference in the perceptions of students in the treatment and control groups, either before or after the introduction of the process writing curriculum. Students' perceptions of writing were varied, but generally believed the course had improved their writing skills. Students' perceived methodology and instructor style were important. Additionally, students generally believed writing was a process and a life skill necessary for a professional career. Conclusions drawn from this study indicated a process writing model curriculum did result in a significant increase in student writing performance. Students' perceptions on writing were varied based on a number of variables, while students' attitudes were moderate to positive about the course and the benefits afforded them. Students indicated methodology and instructor style had a direct effect on how much they learned in the course, and students stated they preferred a writing course that would help prepare them for the future. Students' opinions were mixed on the type of skills needed to be a good writer, but did agree proficient writing skills, at a minimum, were important for college graduates and a needed ability in life.
2013-11-26T08:22:19Z
2013-11-26T08:22:19Z
2013-11-26T08:22:19Z
2006-05
http://hdl.handle.net/11244/6562
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/3215892019-11-19T16:26:30Zcom_11244_10460com_11244_6231col_11244_10462
Zeros of Random Orthogonal Polynomials
Yeager, Aaron Michael
Pritsker, Igor E.
Fili, Paul A.
Lebl, Jiri
McCann, Melinda H.
Let $\{f_j\}$ be a sequence of orthonormal polynomials where the orthogonality relation is satisfied on either the real line (OPRL) or on the unit circle (OPUC). We study zero distribution of random linear combinations of the form
$$P_n(z)=\sum_{j=0}^n\eta_jf_j(z),$$
where $\{\eta_j\}$ are random variables. We give quantitative estimates on the zeros accumulating on the unit circle for a wide class of random polynomials $P_n$. When the coefficients $\{\eta_j\}$ are independent identically distributed (i.i.d.) real-valued standard Gaussian, we give asymptotics for the expected number of zeros of various classes of random sums $P_n$ spanned by OPUC. For the case when the coefficients $\{\eta_j\}$ are i.i.d.~complex-valued standard Gaussian coefficients, we derive a formula for the expected number of zeros of $P_n$. The formula is then applied to give asymptotics of the expected number of zeros of $P_n$ when $\{f_j\}$ are from the Nevai class. We also compute the limiting value as $n\rightarrow \infty$ of the variance of the number of zeros of $P_n$ in annuli that do not contain the unit circle for the case when $\{\eta_j\}$ are i.i.d.~complex-valued standard Gaussian random variables, and $\{f_j\}$ are OPUC from the Nevai class. In the case of annuli that contain the unit circle, for a wide class of random variables $\{\eta_j\}$ and $\{f_j\}$ that are OPUC, we give quantitative results that show the variance of the number of zeros of $P_n$ scaled by $n^2$ tends to zero as $n$ tends to infinity. The work is concluded by providing formulas for the variance of the number of zeros of a random orthogonal power series, specifically when $\sum_{j=0}^{\infty}\eta_j f_j(z)$, with $\{\eta_j\}$ being i.i.d.~complex-valued standard Gaussian, and $\{f_j\}$ are OPUC from the Szeg\H{o} class.
2019-10-25T19:51:49Z
2019-10-25T19:51:49Z
2019-10-25T19:51:49Z
2019-05-01
https://hdl.handle.net/11244/321589
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/244002020-02-24T16:20:58Zcom_11244_10460com_11244_6231col_11244_10462
Sturmian theory for nonselfadjoint systems and a class of n-th order equations
Fariabi, Said
Ahmad, Shair
Vatsala, A. S.
Karman, Thomas A.
Wolfe, John
Eisner, Julian
2016-01-12T16:01:01Z
2016-01-12T16:01:01Z
2016-01-12T16:01:01Z
1979-12
http://hdl.handle.net/11244/24400
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/452092020-02-24T16:20:59Zcom_11244_10460com_11244_6231col_11244_10462
Examining how fire service supervisors perceive the existence of organizational and institutional politics and their effect on management activities
Standridge, Steven E.
Brown, Anthony
Focht, Will
Mendez, Jeanette
Wang, Qingsheng
This research examines how fire service supervisors, from the rank of lieutenant through fire chief, perceive the existence and impact of bureaucratic politics. For testing of the research hypothesis, bureaucratic politics is operationalized through the theoretic lenses of organizational and institutional politics.
Regression analysis indicates there are statistically significant negative linear relationships between perceptions of organizational politics (POP) and strategic planning, budgeting and building social capital.
Augmenting these findings, regression analysis suggests there are negative linear relationships between internal influencer groups (chief officers, rank and file personnel, and other internal stakeholders) and respondents' perceptions of institutional politics (PIP). That is, as respondents perceived each group's influence increasing, there was a corresponding decrease in POP scores.
Conversely, there was a statistically significant positive relationship between PIP and local elected officials. There was also a statistically marginal positive relationship between POP and business groups. That is, as respondents perceived these groups influence increasing, there was a corresponding increase in PIP scores.
Regression analysis also suggests that as the level of education increases or the higher the rank, there are corresponding decreases in respondents' POP scores. Likewise, as the population served increases, there is a corresponding increase in respondents' PIP scores.
The results of the statistical analysis, while not as definitive or supportive of some of the hypotheses advanced, did bring to light some interesting findings.
First, there is clearly support for the notion that employees at all levels perceive the existence of internal and external politics.
Second, respondents perceived that certain groups affect specific management activities. What is divergent between internal and external groups is that the former seemingly have a positive affect reducing POP, while the later increases PIP.
Finally, there is evidence to suggest demographic characteristics, both individually and organizationally, affect perceptions of one or both variants of bureaucratic politics.
2016-09-29T18:37:01Z
2016-09-29T18:37:01Z
2016-09-29T18:37:01Z
2015-05
http://hdl.handle.net/11244/45209
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/202742020-02-24T16:20:59Zcom_11244_10460com_11244_6231col_11244_10462
Assessment and comparison of Native American students with non-Indian students relative to vocational aspirations
Gawhega, Aaron
Wiggins, Lloyd
Knight, Clyde B.
Dugger, Cecil W.
Key, James P.
2015-10-19T21:57:47Z
2015-10-19T21:57:47Z
2015-10-19T21:57:47Z
1982-07
http://hdl.handle.net/11244/20274
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/3393192023-09-07T05:00:26Zcom_11244_10460com_11244_6231col_11244_10462
Consumer's taxonomy of service
Wetherington Licata, Jane
Mowen, John C.
Chakraborty, Goutam
Barr, Steve H.
Bristol, Terry
2023-09-06T21:46:16Z
2023-09-06T21:46:16Z
2023-09-06T21:46:16Z
1994-07
https://hdl.handle.net/11244/339319
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/3393552023-09-07T05:00:27Zcom_11244_10460com_11244_6231col_11244_10462
Characteristics of effective teachers as identified by academically successful African-American students
Maxwell, Wendolyn S.
Reynolds, William M.
Steinbrink, John E.
Bauer, Carolyn J.
Dobson, Judith Shelton
2023-09-06T21:47:36Z
2023-09-06T21:47:36Z
2023-09-06T21:47:36Z
1994-07
https://hdl.handle.net/11244/339355
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/78662020-02-24T18:07:31Zcom_11244_10460com_11244_6231col_11244_10462
Vision-based control of multi-agent systems
Orqueda, Omar Armando Adrian
Fierro, Rafael
Hagan, Martin
Oliveira, Carlos
Sheng, Weihua
Scope and Methodology of Study: Creating systems with multiple autonomous vehicles places severe demands on the design of decision-making supervisors, cooperative control schemes, and communication strategies. In last years, several approaches have been developed in the literature. Most of them solve the vehicle coordination problem assuming some kind of communications between team members. However, communications make the group sensitive to failure and restrict the applicability of the controllers to teams of friendly robots. This dissertation deals with the problem of designing decentralized controllers that use just local sensor information to achieve some group goals.
Findings and Conclusions: This dissertation presents a decentralized architecture for vision-based stabilization of unmanned vehicles moving in formation. The architecture consists of two main components: (i) a vision system, and (ii) vision-based control algorithms. The vision system is capable of recognizing and localizing robots. It is a model-based scheme composed of three main components: image acquisition and processing, robot identification, and pose estimation.
Using vision information, we address the problem of stabilizing groups of mobile robots in leader- or two leader-follower formations. The strategies use relative pose between a robot and its designated leader or leaders to achieve formation objectives. Several leader-follower formation control algorithms, which ensure asymptotic coordinated motion, are described and compared. Lyapunov's stability theory-based analysis and numerical simulations in a realistic tridimensional environment show the stability properties of the control approaches.
2013-12-10T18:05:50Z
2013-12-10T18:05:50Z
2013-12-10T18:05:50Z
2006-12
http://hdl.handle.net/11244/7866
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/333872020-02-24T16:20:59Zcom_11244_10460com_11244_6231col_11244_10462
Male and female: Career development of African American college athletes and non-athletes
Alexander, Jamie Dowdy
Hubbs-Tait, Laura
Larzelere, Robert
Hubbs-Tait, Laura
Kirksey, Jason
Cox, Ronald, Jr.
Tendency to foreclose on careers, vocational exploration, and career commitment were examined in relationship to racial-ethnic socialization, parental responsiveness, and career-related verbal encouragement and emotional support among 228 African American male and female college athletes and non-athletes. A number of tests were conducted to test for significant group differences in central variables and the associations of parenting variables and racial-ethnic socialization with tendency to foreclose, vocational exploration, and career commitment. Parent education and academic year were controlled for in almost all analyses. No significant gender or athlete group differences were found in the total number of major-related careers reported, emotional support, or in tendency to foreclose, vocational exploration, or career commitment. African American male athletes indicated a pursuit of a professional career path almost five times more than African American female athletes did (60% vs. 13%). Being both female and an athlete was associated with higher parental responsiveness. The associations of facets of racial-ethnic socialization with career development varied by gender and athlete status. Career-related verbal encouragement from parents was the most consistent significant predictor in the regression analyses and appeared to be the best way that parents can influence their children's career development as racial-ethnic socialization became non-significant in predicting career development after controlling for verbal encouragement. Academic year was also consistently significant and positive in its relation to career development. Findings are discussed and implications for parents and educators are provided.
2016-04-15T21:49:09Z
2016-04-15T21:49:09Z
2016-04-15T21:49:09Z
2015-07
http://hdl.handle.net/11244/33387
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/207492020-02-24T16:20:59Zcom_11244_10460com_11244_6231col_11244_10462
Self-inverse transforming pseudo non-moving parts interferometer: A theoretical and experimental analysis
Swarna, Kailash
Rockley, M. G.
Devlin, J. Paul
Ackerson, Bruce J.
Purdie, Neil
2015-10-20T19:57:22Z
2015-10-20T19:57:22Z
2015-10-20T19:57:22Z
1991-12
http://hdl.handle.net/11244/20749
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/210922020-02-24T16:20:59Zcom_11244_10460com_11244_6231col_11244_10462
Effects of Pasteurella haemolytica lipopolysaccharide on bovine pulmonary artery endothelial cells in cell culture
Paulsen, Daniel Blake
Panciera, Roger J.
Confer, A. W.
Clinkenbeard, Ken
Fulton, Robert W.
Mosier, Derek A.
2015-11-09T22:08:21Z
2015-11-09T22:08:21Z
2015-11-09T22:08:21Z
1989-07
http://hdl.handle.net/11244/21092
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/76532020-05-21T16:26:20Zcom_11244_10460com_11244_6231col_11244_10462
Investigation of the pathogenesis of Saimiriine herpesvirus 1 in Balb/c mice
Breshears, Melanie Ann
Ritchey, Jerry W.
Eberle, Richard
Panciera, Roger J.
Saliki, Jerry T.
Scope and Method of Study: The purpose of this study was to investigate the pathogenesis of Saimiriine herpesvirus 1 (SaHV-1) infection by characterizing the clinical disease and gross and microscopic lesions in experimentally infected mice. To aid in the identification of anatomic sites of viral replication and to trace viral spread in experimentally infected mice, a green fluorescent protein (GFP)-expressing recombinant strain of SaHV-1 was constructed and used in subsequent inoculation studies. Mice were inoculated intramuscularly or epidermally with ten-fold dilutions of virus and sacrificed at 14 or 21 days in endpoint studies or on sequential days in temporal studies. Serum was tested by ELISA and tissues were examined microscopically with routine stains, immunohistochemistry, and confocal microscopy.
Findings and Conclusions: SaHV-1 inoculation of Balb/c mice, either intramuscularly or epidermally, resulted in active infection as indicated by seroconversion, clinical disease, and gross and microscopic lesions. Mice inoculated intramuscularly initially developed skin lesions in the region of inoculation with subsequent development of paresis or paralysis of the inoculated hindlimb in animals receiving higher doses of virus. Lesions in these mice were restricted to the skin and thoracolumbar spinal cord and consisted of necrotizing dermatitis and segmental myelitis with neuronal necrosis. Mice inoculated with SaHV-1 via epidermal scarification developed a more rapidly progressive, severe disease that began in the inoculated epidermis and spread to involve thoracolumbar spinal cord, regional autonomic ganglia, and lower urinary tract. All mice receiving an infective dose of virus by this route developed ultimately fatal disease. GFP expression, indicating viral replication, corresponded with microscopic lesions and was present in keratinocytes of the epidermis, neurons of the dorsal root ganglia, spinal cord, sympathetic ganglia, and colonic myenteric plexus as well as epithelium of the lower urinary tract. SaHV-1 exhibited neurovirulence in Balb/c mice that varied significantly with the route of inoculation.
2013-11-26T08:35:13Z
2013-11-26T08:35:13Z
2013-11-26T08:35:13Z
2004-07
http://hdl.handle.net/11244/7653
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/304232020-02-24T16:20:59Zcom_11244_10460com_11244_6231col_11244_10462
Extremal structure of star-shaped sets
Tidmore, Freddie Eugene
McLachlan, E. K.
Agnew, Jeanne
Uehara, Hiroshi
Cummins, Richard L.
2016-02-16T20:23:56Z
2016-02-16T20:23:56Z
2016-02-16T20:23:56Z
1968-05
http://hdl.handle.net/11244/30423
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/3362922022-07-30T05:10:30Zcom_11244_10460com_11244_6231col_11244_10462
Teacher perceptions of the education of students who are gifted and talented by teacher personality preference: A Q-methodological study
Ehlers, Kristy K.
Montgomery, Diane
Bull, Kay S.
Davis, Charles Robert
Hyle, Adrienne E.
Miller, Janice Williams
2022-07-29T19:42:33Z
2022-07-29T19:42:33Z
2022-07-29T19:42:33Z
2000-07
https://hdl.handle.net/11244/336292
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/66352020-02-24T18:06:52Zcom_11244_10460com_11244_6231col_11244_10462
Development and characterization of molecular tools for microbial forensics
Brown, TeeCie Paige
Melcher, Ulrich K.
Fletcher, Jacqueline
Allen, Robert
Hoyt, Peter
Canaan, Patricia
Scope and Method of Study:
The anthrax attacks of 2001 prompted the rapid establishment and growth of the fields of microbial and plant pathogen forensics. A complete forensic capability includes the ability to discriminate between a natural and an intentional disease outbreak, collection of forensic evidence, generation of genetic profiles for use during attribution and storage of samples. This document describes (i) the molecular characterization of plant virus populations derived from plants that were naturally and mechanically-inoculated with a model plant virus, (ii) the application of microarray-based technologies to genetically fingerprint plant viruses, (iii) the characterization of a previously-designed microarray platform for the identification and diagnosis of known and novel plant viruses, and (iv) the use of FAME profiles to aid in the discrimination of media components used to prepare Bacillus cereus T-strain spores. Though all of these projects are not directly related, they all fall within the scope of microbial forensics.
Findings and Conclusions:
The molecular characterization of plant virus populations derived from a natural inoculation event and those from mechanically-inoculated plants displayed minor differences in haplotype and pair-wise nucleotide diversities. Additionally, the number of recombination events was found to be lower in the mechanically-inoculated plants than those collected from the natural disease outbreak. These results indicate that differences between the two types of inoculation events exist and may be a direct function of the infection time, source(s) of inoculum(a) or environmental effects.
The solution-based minisequencing and capture array technique demonstrated reproducibility at the same concentration of targets, but was less accurate using variable amounts of synthetic targets. The use of solution-based minisequencing followed by tag-array capture appears to be a promising approach to genotyping plant viruses.
A significant amount of cross-hybridization was observed using the universal plant virus microarray (Virochip). The microarray platform failed to strongly hybridize to most of the known plant viruses that were applied to the array. Hybridization with Wheat streak mosaic virus-infected material indicated that the system strongly hybridized with the negative-sense strand, but not the corresponding positive-sense strands.
Discrimination of individual media components was achieved by analyzing fatty acids derived from Bacillus cereus T-strain spores prepared in different media. One FAME biomarker, oleic acid, was found to be exclusively associated with media supplemented with blood.
2013-11-26T08:22:49Z
2013-11-26T08:22:49Z
2013-11-26T08:22:49Z
2011-07
http://hdl.handle.net/11244/6635
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/487962019-12-06T15:48:04Zcom_11244_10460com_11244_6231col_11244_10462oai:shareok.org:11244/109582020-02-24T16:20:59Zcom_11244_10460com_11244_6231col_11244_10462
Assessing the Effects of Cognitive Style, Hypothesis Generation, and Problem Complexity on the Problem Solving Ability of School-Based Agricultural Education Students: An Experimental Study
Assessing the effects of cognitive style, hypothesis generation, and problem complexity on the problem solving ability of school-based agricultural education students: An experimental study
Blackburn, John Joseph
Robinson, J. Shane
Terry, Robert, Jr.
Kelsey, Kathleen D.
Fuqua, Dale
Problem solving is one of the most important cognitive abilities possessed by people. Further, the ability to solve problems is one of the most important characteristics of potential employees sought by employers in the agriculture industry. The purpose of this study was to assess the effects of cognitive style, hypothesis generation, and problem complexity on the problem solving ability of students in Agricultural Power and Technology courses in Oklahoma. Specifically, students were asked to troubleshoot a small gasoline engine with a known fault. Kirton's Adaption-Innovation Inventory was used to determine students' cognitive style as more adaptive or more innovative. This study employed a CRF-22 design where students were assigned randomly by cognitive style to treatment groups. The treatment was complexity of the problem, either simple or complex. Students received instruction in small gasoline engines from their respective agriculture teachers, who had attended a small gasoline engines workshop, prior to troubleshooting. Additionally, students were required to generate a written hypothesis over their assigned problem. Students' content knowledge was assessed using a criterion-referenced test. A two-way independent ANOVA was calculated and no statistically significant differences in knowledge existed based on cognitive style and hypothesis generation. A three-way independent ANOVA was utilized to determine if statistically significant differences existed in students' time to solution based on the independent variables. The three-way interaction effect was not statistically significant. The two-way interaction effect of problem complexity and cognitive style was not statistically significant. Likewise, the two-way interaction effect of hypothesis generation and cognitive style was not statistically significant. It was concluded that students can solve problems regardless of their cognitive style. The two-way interaction effect of problem complexity and hypothesis generation was statistically significant. This finding indicated that the students who generated a correct hypothesis solved their problems more efficiently, regardless of complexity. It was recommended that agriculture teachers teach their students to generate hypotheses when solving problems. Additionally, it was recommended that further research be conducted to clarify the relationship of content knowledge, hypothesis generation, and cognitive style on the ability of students to solve problems of varying complexities.
2014-09-24T14:16:27Z
2014-09-24T14:16:27Z
2014-09-24T14:16:27Z
2013-05
http://hdl.handle.net/11244/10958
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/447122020-02-24T16:20:59Zcom_11244_10460com_11244_6231col_11244_10462
Study of the elements and events that influence leadership among women of color administrators at Oklahoma technology centers
Mack, Norma H.
Martinez, Reynaldo L.
Nolan, Robert E.
Warren, Joan
Olson, Nadine F.
2016-08-03T15:35:54Z
2016-08-03T15:35:54Z
2016-08-03T15:35:54Z
2003-05
http://hdl.handle.net/11244/44712
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/75142020-02-24T18:06:16Zcom_11244_10460com_11244_6231col_11244_10462
Exploring the relationship between elementary education preservice teachers' dispositions toward diversity and their approach to curriculum and teaching
Mtshali-Dlamini, Sibongile M.
Brown, Pamela U.
Zhao, Gouping
Thomas, Cornell
Van Delinder, Jean
Scope and Method of Study: Using the culturally responsive teaching/teacher theoretical lens, this qualitative study sought to explore the relationship between elementary preservice teachers' dispositions toward diversity and examine how these dispositions relate to their curriculum content selection and teaching strategies when teaching student populations that are culturally linguistically, and socioeconomically different from them. Four White female elementary preservice teachers, conducting their clinical internship in a culturally diverse elementary school participated in the study.
Findings and Conclusion: There was a significant relationship between the preservice teachers' dispositions and their curriculum content selection and their teaching strategy selection. Findings indicated the following: (a) lack of awareness and lack of experience, (b) family influence, (c) active/silent resistance, (d) savior/missionary mentality, and (e) selective othering. From the findings, I concluded that since the participants did not have culturally diverse knowledge base, and skills, they were not able to select culturally relevant curriculum and teaching strategies for culturally diverse student populations. Teacher educators still have a challenge to prepare teacher candidates to work with diverse student populations.
2013-11-26T08:34:45Z
2013-11-26T08:34:45Z
2013-11-26T08:34:45Z
2007-05
http://hdl.handle.net/11244/7514
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/69362020-02-24T18:07:48Zcom_11244_10460com_11244_6231col_11244_10462
Relationship of attachment and spirituality with posttraumatic growth following a death loss for college students
Bratkovich, Kristi Lyn
Winterowd, Carrie
Carlozzi, Barbara
Romans, John
Shriver, Thomas
Scope and Method of Study: The purpose of the present study is to explore the relationship of college students' general spiritual beliefs and practices and the quality and nature of their relationships with others (i.e., general attachment: secure, preoccupied, dismissive, fearful), with their bereavement and posttraumatic growth following the loss of a loved one. The sample consisted of 131 participants who completed an on-line survey including a demographic sheet, the Hogan Grief Reaction Checklist (Hogan, 2001), the Post-Traumatic Growth Inventory (Tedeschi & Calhoun, 1996), the Spirituality Involvement and Beliefs Scale (Hatch, Burg, Naberhaus, & Hellmich; 1999), and the Relationships Questionnaire (Bartholomew and Horowitz, 1991). Analyses utilized in this study were a Pearson correlation and multiple linear regressions.
Findings and Conclusions: Results indicated that spirituality and posttraumatic growth were positively correlated. There was a significant negative correlation between the amount of distress due to grief and level of spirituality. Fearful attachment to others in general was positively correlated with grief distress and was positively correlated with posttraumatic growth. Secure attachment was positively correlated with posttraumatic growth. A multiple regression found that spirituality and general attachment styles accounted for 25.6% of the variance in posttraumatic growth scores. A multiple regression found that spirituality and general attachment styles accounted for 16.8% of the variance in grief distress scores. Future research may be used to determine the influence of other variables in understanding PTG, the importance of studying the attachment styles in clinical samples of college students, including use of clinical interviews and behavioral observations. Implications for practice include helping college students to utilize their spiritual beliefs and interpersonal styles in order to help them cope with grief experiences, as well as, facilitate growth experiences.
2013-11-26T08:27:37Z
2013-11-26T08:27:37Z
2013-11-26T08:27:37Z
2010-07
http://hdl.handle.net/11244/6936
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/65612020-05-21T16:26:11Zcom_11244_10460com_11244_6231col_11244_10462
Assessment of the Sasakawa Africa Fund for Extension Education's (SAFE) training program in Mali: Graduates' perceptions of the training's impact as well as opportunities and constraints related to Supervised Enterprise Projects (SEPs)
Kante, Assa
Edwards, Craig
Blackwell, Cindy
Key, James
Henneberry, Shida
Scope and Method of Study: The sample for this descriptive study included 50 mid-career Extension professionals who had completed the Sasakawa Africa Fund for Extension Education (SAFE) training program in the Republic of Mali (West Africa). The study assessed perceptions of SAFE graduates regarding the training's impact on their professional performance and related behaviors of the graduates' clients. The study followed a triangulation mixed methods design (Creswell, 2005), which included using a survey instrument and conducting semi-structured focus group interviews to collect data.
Findings and Conclusions: Most of the study participants were Muslim males who averaged nearly 47 years of age and 17 years of experience in Extension. Participants served in seven of the eight administrative regions of Mali and in the District of Bamako. Seven-in-ten participants had entered the SAFE training program with a Technician degree and specialization in Agriculture. Participants perceived the training had a significant impact on their overall professional competence, and that the knowledge they acquired increased their effectiveness and satisfied their training needs. All of the graduates were upgraded to an advanced job category after completing the training. Nearly two-thirds indicated they observed changes in their clients' practices attributed to the SAFE training. Significant associations and relationships (p < .05) between selected personal and professional characteristics of graduates, between their characteristics and selected perceptions, as well as between their selected perceptions were revealed. Male graduates were significantly more likely to still be Extension educators. In addition, graduates overall satisfaction with their SAFE training experience was significantly related to their willingness to encourage a colleague to participate in the training. Qualitative findings revealed that the graduates' experiences with Supervised Enterprise Projects (SEPs) overall was positive and useful. However, some issues and concerns regarding SEPs emerged, including cost, supervision, as well as standards regarding project reporting and thesis writing.
2013-11-26T08:22:19Z
2013-11-26T08:22:19Z
2013-11-26T08:22:19Z
2010-07
http://hdl.handle.net/11244/6561
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/73682020-05-21T16:36:15Zcom_11244_10460com_11244_6231col_11244_10462
Positive and negative aspects of student involvement on academic achievement
Dew, Jovette Regina
Fuqua, Dale
Perry, Katye
Miller, Janice
Davis, C. Robert
Scope and Method of Study: The focus of this study was to examine the empirical structure of student involvement and the relationship of that structure to academic achievement measures. Participants in this study included 360 students at a regional Midwestern university. Exploratory factor analysis and multiple correlation techniques were used to explore the research questions presented in the study.
Findings and Conclusions: The student involvement structure comprised of a four factor solution. The factors were Structured Campus Involvement, Campus Resources and Facilities, Proximity to Campus, and Social Connections. The structure was related to academic measures including GPA and CAAP scores on Critical Thinking and Writing. The activity level of student involvement has a positive relationship with GPA, however, the satisfaction with activity level had a positive relationship with GPA, CAAP Critical Thinking, Essay 2 and Essay combined. Multiple comparisons revealed differences on the satisfaction scale between freshmen and juniors on Total Scores Campus Resources and Facilities and Total Scores Structured Campus Involvement. Also, differences were found on the satisfaction scale between and freshmen and seniors on Total Scores Social Connections and Total Scores Campus Resources and Facilities.
2013-11-26T08:34:22Z
2013-11-26T08:34:22Z
2013-11-26T08:34:22Z
2010-12
http://hdl.handle.net/11244/7368
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/207902020-02-24T16:20:59Zcom_11244_10460com_11244_6231col_11244_10462
Training program to improve emotion recognition in schizophrenics
Berryman, M. Lee
Sandvold, Kenneth D.
Thomas, David G.
Rambo, William W.
Carlozzi, Alfred
2015-10-29T15:57:24Z
2015-10-29T15:57:24Z
2015-10-29T15:57:24Z
1990-12
http://hdl.handle.net/11244/20790
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/312682020-02-24T16:20:59Zcom_11244_10460com_11244_6231col_11244_10462
Nonverbal behavior of first grade teachers in different socio-economic level elementary schools
Davis, Gene L.
Dobson, Russell
Elsom, Bill F.
Mills, Terence J.
Perkins, Larry M.
2016-02-24T15:25:33Z
2016-02-24T15:25:33Z
2016-02-24T15:25:33Z
1973-05
http://hdl.handle.net/11244/31268
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/3209432019-10-08T15:57:46Zcom_11244_10460com_11244_6231col_11244_10462
Mental Health Courts: A Theory-Driven Program Evaluation
Bullard, Chelsea Elizabeth
Sittner Hartshorn, Kelley J.
Liang, Bin
Whitham, Monica
Thrasher, Ronald R.
Mental Health Courts (MHCs) represent a potential solution to the interconnected social issues of mass incarceration and the criminalization of mental illness. MHC programs remove mentally ill offenders from regular judicial processes and into community-based therapeutic treatment.
The purpose of this research is to evaluate current MHC practices, organization, and environments to uncover variations in program assumptions and determine to what extent and manner MHCs adhere to the 10 Essential Elements of Mental Health Courts (Thompson, Osher and Tomasini-Joshi 2008). The research uses a mixed-methods study design within a program-theory framework using a survey and a collection of relevant MHC documents. Data was analyzed utilizing descriptive statistics and content analysis for a sample of twenty-seven adult MHC programs from eighteen states. Results were used to create program-theory logic models, identify issues, offer insights into the possibility of novel Essential Elements, and suggest new evaluation questions and methods for future research.
The research revealed six key findings: 1. MHCs are largely experiencing expansion from predominate emphasis on meeting clinical treatment needs to inclusion of a variety of services/activities aimed to meet identified dynamic criminogenic needs, 2. MHCs do not place as much emphasis on sanctions and incentives as an intervention required for program success as originally assumed, 3. Despite identified evolution in program assumptions and expanded variety of program activities, MHC goals are largely the same as originally outlined in the Essential Elements, 4. Client transportation acts as major barrier to program success, 5. The 10 Essential Elements continue to largely encompass what court teams assume makes a successful MHC, restorative justice, however, may merit future consideration for inclusion, and 6. MHCs largely feel their programs impact the level of social organization in their communities, thus, community-level impacts are a viable source for methodological pursuit in future program evaluation.
This research is significant because it outlines a new method of MHC evaluation. Proper evaluation of the impacts of MHCs is imperative because MHCs have the capacity to promote access to care, diminish fear and stigmatization of the mentally ill, and reduce societal burdens caused by the criminalization of the mentally ill.
2019-07-19T13:33:36Z
2019-07-19T13:33:36Z
2019-07-19T13:33:36Z
2018-12-01
https://hdl.handle.net/11244/320943
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/259872020-02-24T16:20:59Zcom_11244_10460com_11244_6231col_11244_10462
Group modification of affective verbalizations and extended generalization effects
Duvall, Ronald Dean
Fromme, Donald K.
Sandvold, Kenneth D.
Schlottmann, Robert S.
Webster, Edgar L.
2016-01-25T19:17:40Z
2016-01-25T19:17:40Z
2016-01-25T19:17:40Z
1977-12
http://hdl.handle.net/11244/25987
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/110122020-02-24T16:20:59Zcom_11244_10460com_11244_6231col_11244_10462
Assessing the Value of the Enviroscape Watershed Learning Module
Assessing the value of the Enviroscape Watershed learning module
Edwards, Warren Patrick
Marks, Steve
Beller, Caroline
Vitek, John D.
Mitchell, Earl
Scope and Method of Study: The researcher's evaluation of the West Atlanta Watershed Alliance's (WAWA) programs highlighted that few if any of the offered educational programs included a program evaluation, especially the most promising, the Enviroscape® Watershed learning module. The education programs that were customized and developed by the education staff did not offer evaluations either. Additionally, these programs did not offer a pre or posttest. Students would visit the center, experience the "learning" and then leave. The problem was that no system was in place to assess the transfer of content or whether learning occurred. The purpose of this education study was to determine if the Enviroscape® Watershed learning module increases content knowledge, by collecting data from urban-suburban schools from third, fourth and fifth grade students. The sample population consisted of 62 elementary students in grades three, four and five from urban and suburban school districts. These participants were involved in the Watershed Alliance Outdoor Activity at the Bush Mountain Outdoor Activity Center from the years of 2011 to 2012.
Findings and Conclusions: The researcher, in partnership with the designer of the Enviroscape® Module, and the OAC Education director, was able to collect data from trained education facilitators at school sites from suburban and the Urban Atlanta Areas. Educators were recruited to participate in the study based on their prior experience with environmental activities at the center, and were teaching third, fourth and fifth graders. A slight increase was found between the pretest and posttest of participants' scores on the science content knowledge. After conducting a T-Test analysis of the data however, it was concluded that no significant difference existed between the scores. The results also showed no significant increase in the mean scores between urban and suburban participants' content knowledge science scores. Furthermore, the results of an ANOVA analysis of the data showed that there was not a significant difference between the groups in the science content knowledge for participants in the third, fourth and fifth grades.
2014-09-24T14:16:54Z
2014-09-24T14:16:54Z
2014-09-24T14:16:54Z
2013-07
http://hdl.handle.net/11244/11012
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/274322020-02-24T16:20:59Zcom_11244_10460com_11244_6231col_11244_10462
Experimental investigation of industrial inspector accuracy under varying levels of product defectiveness
Wallack, Paul Mark
Adams, S. Keith
Bentley, W. J.
Shamblin, James E.
Lohmann, M. R.
2016-02-01T22:06:54Z
2016-02-01T22:06:54Z
2016-02-01T22:06:54Z
1967-07
http://hdl.handle.net/11244/27432
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/73292020-05-21T16:51:53Zcom_11244_10460com_11244_6231col_11244_10462
Employment barriers of Asian Americans and Pacific Islanders with disabilities
Burkhalter, Belen C.
Self, Mary Jo
Conti, Gary J.
Fry, Pamela
Ausburn, Lynna J.
2013-11-26T08:34:15Z
2013-11-26T08:34:15Z
2013-11-26T08:34:15Z
2006-12
http://hdl.handle.net/11244/7329
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/3363492022-07-30T05:11:08Zcom_11244_10460com_11244_6231col_11244_10462
Macromolecular interactions in the regulation of glycolysis
Lehoux, Eric A.
Spivey, H. Olin
Blair, James B.
Blankemeyer, James T.
Matts, Robert L.
Mort, Andrew
2022-07-29T19:51:22Z
2022-07-29T19:51:22Z
2022-07-29T19:51:22Z
2000-12
https://hdl.handle.net/11244/336349
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/242722020-02-24T16:20:59Zcom_11244_10460com_11244_6231col_11244_10462
Study of the membrane nictitans and genitalium of the canine with reference to lymphofollicular hyperplasia and its etiology
Jackson, James Andrew
Corstvet, Richard E.
Homer, John T.
Roszel, Jeffie F.
Buckner, Ralph G.
2016-01-12T14:37:28Z
2016-01-12T14:37:28Z
2016-01-12T14:37:28Z
1978-07
http://hdl.handle.net/11244/24272
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/3361512022-07-29T05:11:54Zcom_11244_10460com_11244_6231col_11244_10462
Weak ties, the disadvantaged, and breaking through the business barriers: Looking for the missing link to a great employment rate among people with mental retardation
Longjohn, Julie
Hyle, Adrienne E.
Burlingame, Martin
Davis, Charles Robert
Harris, Ed
2022-07-28T19:57:43Z
2022-07-28T19:57:43Z
2022-07-28T19:57:43Z
2001-08
https://hdl.handle.net/11244/336151
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/3392532023-09-01T05:00:23Zcom_11244_10460com_11244_6231col_11244_10462
Aerospace quality process training in Oklahoma
Mcmahan, Jerry
Mcclure, H.C.
Collins, Tom
2023-08-31T20:57:28Z
2023-08-31T20:57:28Z
2023-08-31T20:57:28Z
1999-12
https://hdl.handle.net/11244/339253
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/451172020-02-24T16:20:59Zcom_11244_10460com_11244_6231col_11244_10462
Molecular coordination of iron homeostasis by microRNA
Davis, McKale
Clarke, Stephen
Smith, Brenda
Lucas, Edralin
Stoecker, Barbara
Miller, Rita
Iron is an essential nutrient critical for oxygen transport, DNA synthesis, ATP generation, and cellular proliferation. At the molecular level, insufficient iron elicits a cascade of cellular events aimed at conserving iron for the maintenance of these life-preserving functions, but tissue-specific responses and metabolic adaptations to iron deficiency (ID) are not fully understood. Recently, small regulatory RNA molecules called microRNA (or miRNA) have been identified as an important mechanism for regulating various cellular processes. Therefore we sought to determine if the expression pattern of miRNA changes in response to dietary ID and to examine the potential regulatory capacity of miRNA in the adaptive response to ID. To do this, we first characterized the expression of miRNA in the livers of iron-sufficient and iron-deficient animals using next-generation sequencing technology. Results compiled from three different bioinformatics approaches indicate that ~10 miRNA are differentially expressed in the livers of ID rats. Further bioinformatics analyses suggested that at least two of these miRNA, miR-210 and miR-181d, had predicted targets directly involved in either the maintenance of iron homeostasis or the metabolic adaptation to iron deficiency. We then used reporter assays to validate the putative miRNA targets including the miR-210 target, cytoglobin, and the miR-181d targets, carnitine palmitoyltransferase 1B and mitoferrin 1. These findings have provided insight into the metabolic adaptation to ID and have demonstrated how miRNA contribute to the molecular coordination of iron homeostasis in a physiologic model of dietary ID.
2016-09-29T18:29:20Z
2016-09-29T18:29:20Z
2016-09-29T18:29:20Z
2013-07
http://hdl.handle.net/11244/45117
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/266082020-02-24T16:21:00Zcom_11244_10460com_11244_6231col_11244_10462
Influences of firm size and market structure on the research efforts of large multiple-product firms
Kelly, Thomas Monroe
Warner, Larkin
Steindl, Frank G.
Tweeten, Luther G.
2016-01-27T16:46:37Z
2016-01-27T16:46:37Z
2016-01-27T16:46:37Z
1970-05
http://hdl.handle.net/11244/26608
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/208382020-02-24T16:21:00Zcom_11244_10460com_11244_6231col_11244_10462
Meaning that children ascribe to print as a function of experience with big books
Grant, Kay Lallier
Castle, Kathryn
Yellin, David
Wilson, Elaine
Dobson, Russell
2015-10-29T15:57:55Z
2015-10-29T15:57:55Z
2015-10-29T15:57:55Z
1990-05
http://hdl.handle.net/11244/20838
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/3254942020-09-11T14:45:22Zcom_11244_10460com_11244_6231col_11244_10462
Oklahoma Career Tech Superintendents' perceptions of educational leadership preparation experiences
Casey, Brent
Curry, Katherine
Harris, Ed
Self, Mary Jo
Richardson, Shawna
Research has shown that effective educational leadership preparation is a key component in the success of school administrators (Johnson & Uline, 2005; McCarthy, 2015). Effective preparation of educational leaders is an important issue facing education, because it not only affects student achievement and teacher quality, but also is a vital component in maintaining the quality and culture within our schools. However, a discrepancy still seems to exist as it relates to a "one size fits all" approach to developing and preparing school leaders. While the majority of the knowledge, skills, and competencies apply to all school leaders, differences appear to exist as it relates to the type of educational institution the school administrator aspires to lead. The purpose of this qualitative case study was to explore the perceptions, through the lens of the Three-Skills Approach to leadership development (Katz, 1955), of CTE Superintendents related to how their educational leadership preparation program prepared them for leadership in Career and Technology Education. This case study involved in-depth interviews with eight Oklahoma Career Tech Superintendents along with the collection of documents and artifacts for triangulation purposes to add validity and credibility to the data. Through the data analysis, three themes emerged including: (a) there was a lack of applicable content in educational leadership programs for CTE leadership positions, (b) the knowledge and skills in the educational leadership programs were focused on K12 school leadership which is different than needed in CTE leadership, and (c) specific knowledge as well as technical, human, and conceptual skills are needed in the role as a CTE Superintendent. This study suggests and identified specific technical, human, and conceptual skills that are needed by individuals aspiring to become an administrator or a Superintendent in a Career Tech center. These findings will assist the required educational leadership preparation programs ensure future administrators are adequately prepared for their role of leadership in the CTE setting.
2020-09-09T21:16:28Z
2020-09-09T21:16:28Z
2020-09-09T21:16:28Z
2020-05
https://hdl.handle.net/11244/325494
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/66122020-02-24T16:21:00Zcom_11244_10460com_11244_6231col_11244_10462
Validation of an Improved Isolation and Detection Method for Campylobacter jejuni in Various Foods
Validation of an improved isolation and detection method for Campylobacter jejuni in various foods
Odongo, Rose
Gilliland, Stanley E.
Berlin, K. Darrell
DeWitt, Christina
McGlynn, William
Scope and Method of Study:
The Food and Agricultural Products Center (FAPC) method, an improved method for the detection and isolation of Campylobacter in food, was compared to the Food and Drug Administration/Bacteriological Analytical Method (FDA/BAM) method in the recovery of Campylobacter jejuni inoculated in food samples. Beef, chicken skin, milk and ground beef samples were kept at 4°C for 10 days and the effects of enrichment time storage period, blood supplementation of the enrichment broth and detection method on the recovery of Campylobacter inoculated in the food samples were investigated over the storage period. The abilities of the two methods to recover two strains of Campylobacter jejuni ATCC 29428 and 33560, inoculated in the food samples over the storage period were compared.
Findings and Conclusions:
The results from FDA and FAPC methods for detection of Campylobacter jejuni from food samples were found not to be statistically different from each other. Blood supplementation of the enrichment broth had no effect on the recovery of Campylobacter from food in either method. Although the counts of Campylobacter cells recovered after 48 hours of enrichment were higher than those recovered after 24 hours, counts recovered after 24 hours served the purpose of enrichment and thus, there is no need for a 48-hour enrichment period. The growth curves of Campylobacter cultured at 37°C and 42°C demonstrated that it can grow well at either temperature and therefore it is not necessary to grow Campylobacter at 42°C as required by the FDA protocol. One incubation temperature at 37°C was adequate to recover Campylobacter cells from the food matrices tested.
2013-11-26T08:22:37Z
2013-11-26T08:22:37Z
2013-11-26T08:22:37Z
2007-12
http://hdl.handle.net/11244/6612
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/3308452021-09-24T05:16:53Zcom_11244_10460com_11244_6231col_11244_10462
Three essays on regional and development economics
Han, Luyi
Azam, Mehtabul
Kazianga, Harounan
Rickman, Dan
Whitacre, Brian
My dissertation comprises three chapters. The first chapter examines the impacts of the U.S. shale boom on local patents. The second chapter assesses how more competitive political competitions in Sub-Saharan African countries and positive birth-year rainfall shocks affect child mortality rates. The third chapter explores the effects of access and adoption of broadband on self-employment and work-from-home.
The first chapter examines the impacts of the U.S. shale boom on local patenting at a commuting zone level. I expect that the shale boom will negatively affect patents because shale development may crowd out labor and capital investments in other non-energy industries. My findings show that a one standard deviation increase in non-vertical drilling well density decreases patent intensity by 3.6% of the mean. Areas with higher drilling densities have lower levels of patented innovation compared to their counterfactuals. This study contributes to the existing literature related to the "natural resource curse." I provide new evidence based on local patenting, which is an important indicator for regional innovation and long-term economic growth.
In the second chapter, I empirically test three hypotheses that affect child mortality based on the rural sample in Sub-Saharan African countries. In the first hypothesis, I assess the effects of more competitive presidential elections on child mortality. In the second hypothesis, I investigate the impacts of birth year rainfall shocks on child mortality. In the third hypothesis, I argue the effects of political competition can be heterogeneous due to different environment conditions. So I interact the presidential election variable with the rainfall variable to examine the heterogeneous effects when there are good rainfall shocks during a more competitive presidential election period. The results show that both competitive elections and positive rainfall shocks reduce child mortality. Their interaction indicates positive rainfall shocks may be less effective to reduce child mortality during a more competitive election time period.
In the third chapter, using the American Community Survey and the Federal Communications Commission data, I examine how broadband affects self-employment and work-from-home for married women. Based on different sources of internet variables, I investigate the impacts of internet from both the adoption and access to broadband. I find that adoption and access to high-speed broadband have significantly positive impacts on self-employment and work-from-home. This study contributes to the existing literature that examines how Information and Communications Technology affects the labor market.
2021-09-23T19:42:46Z
2021-09-23T19:42:46Z
2021-09-23T19:42:46Z
2021-05
https://hdl.handle.net/11244/330845
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/338362020-02-24T16:21:00Zcom_11244_10460com_11244_6231col_11244_10462
Multi-phase transport of toluene in unsaturated soil under transient flow conditions
Roll, John Linden
Brown, Glenn
Elliott, Ronald L.
Basta, Nicholas T.
Smolen, Michael
2016-04-25T20:56:33Z
2016-04-25T20:56:33Z
2016-04-25T20:56:33Z
1996-05
http://hdl.handle.net/11244/33836
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/72762020-02-24T16:21:00Zcom_11244_10460com_11244_6231col_11244_10462
Student feedback, improving instruction, and increasing student learning at Prince of Songkla University
Sudhinont, Jomjai
Stern, Kenneth
Wanger, Stephen
Yellin, David
Dugger, Cecil
Scope and Method of Study: This case study examined the usefulness of the One-Minute Paper, a classroom assessment strategy, for promoting student learning. Also, the study attempted to determine students' and instructors' perceptions of the effectiveness of the OMP in facilitating teacher assessments of student progress and developing effective instructional modifications. The primary questions were: 1) How does the OMP promote student learning? 2) What are the effects of using the OMPs on students and instructors? and, 3) What are students' and instructors' perceptions of the usefulness of the OMP? The methodology involved qualitative data collection from documents, classroom observations, and interviews. Five instructors and 240 students participated in the study. Interviews involved 17 participants: five instructors and 12 students.
Findings and Conclusions: This study showed that the OMP could help improve student learning. The instructors and students perceived the OMP helped promote student learning as well as develop instructional modification. Metacognitive theory provided a framework to explain if the theory helped to reveal something about the relationship between the OMP and student learning improvement and in developing strategies for instructors to adapt their classroom behaviors or instruction. Among key findings, students and instructors reported that the OMP helped improve students' learning. And, instructors improved their teaching practices through the use of the OMP. Several themes emerged: student learning improved, instructors added or changed instructional activities, and student and instructor comfort level with the OMP increased during the semester. These themes were examined through the lens of metacognitive theory. And, recommendations for reform and further research were presented.
2013-11-26T08:33:27Z
2013-11-26T08:33:27Z
2013-11-26T08:33:27Z
2009-07
http://hdl.handle.net/11244/7276
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/330232020-02-24T16:21:00Zcom_11244_10460com_11244_6231col_11244_10462
Study of selected symbols through poetry: The Orient and the West
Orachoonwongse, Somtawil
Munson, Leon L.
Elsom, Bill F.
Selakovich, Dan
King, Kenneth L.
Dugger, Cecil W.
2016-03-10T14:55:00Z
2016-03-10T14:55:00Z
2016-03-10T14:55:00Z
1976-07
http://hdl.handle.net/11244/33023
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/72322020-05-21T16:34:42Zcom_11244_10460com_11244_6231col_11244_10462
Exploratory study of public school administrators' perceptions regarding public school education advanced by homeschool parents
Kilgore, Kenneth E.
Harris, Edward
Perry, Katye
Harrist, Steve
Stern, Kenneth
Scope and Method of Study: Qualitative Research using 15 Public School Administrators representing three public school systems in Oklahoma County. The administrators will divide into 3 Focus Group sessions and discuss 13 open-ended discussion questions about the allegations made against public schools by homeschool parents.
Findings and Conclusions: Public School Administrators must talk more about the positive things that are happening in public schools-things that seldom are mentioned by the media. It is all but impossible to raise children in a world completely surrounded by only homeschoolers and homeschool enthusiasts. The public is all around us and cannot be completely avoided.
2013-11-26T08:33:22Z
2013-11-26T08:33:22Z
2013-11-26T08:33:22Z
2009-07
http://hdl.handle.net/11244/7232
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/204472020-02-24T16:21:00Zcom_11244_10460com_11244_6231col_11244_10462
Effects of two eliciting modes on syntactic structure of mildly retarded children at differing levels of short-term memory
Glass, Peggy Sommers
Gamble, Rondal R.
Ray, Darrel D.
Troxel, Vernon
Elsom, Bill F.
Myers, Donald A.
2015-10-20T16:19:36Z
2015-10-20T16:19:36Z
2015-10-20T16:19:36Z
1975-12
http://hdl.handle.net/11244/20447
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/3290982021-04-07T05:17:31Zcom_11244_10460com_11244_6231col_11244_10462
Multiphase gas mechanisms in groundwater
Agnew, Robert J.
Halihan, Todd
Vilcaez, Javier
Wilber, Greg
Holtzhower, Lantz
Numerous groundwater springs bubble, yet the flow and transport of gases are not well understood in hydrogeology. An understanding of the processes by which gases enter, migrate, and are liberated from groundwater is required. A quantitative conceptual model of gas migration in groundwater will allow an understanding of what informative aquifer signals may be present in gas data, as well as what information signals may be masked or diminished by phase changes. Through analysis of existing published literature, seven facies of groundwater bubbles were developed to provide a framework for research in these specific categories of gas transport. In order to better understand these multiphase bubbling springs, an instrument was designed and deployed over the discharge of a spring in southern Oklahoma that measured the total gas flux, ebullative and diffusive. By measuring the water discharge from the spring too, a hydropneumograph of gas and water mass flux over time can be produced. In addition to the mass flow rates of the two phases provided by the hydropneumograph, water and gas samples were collected for compositional analysis. By combining the compositional data of exsolved and dissolved gas with the mass flow rates from the hydropneumograph, estimation of the quantity of light noble gases is radically changed (60% for He, 45% for Ne) which provides improvements in the calculation of recharge temperature of 4 to 25% depending on the model selected. These improvements in the understanding of the physical hydrogeology of bubbling springs provide an additional avenue for researchers to explore aquifer dynamics that is largely ignored in the extant literature.
2021-04-06T16:06:36Z
2021-04-06T16:06:36Z
2021-04-06T16:06:36Z
2019-05
https://hdl.handle.net/11244/329098
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/278032020-02-24T16:21:00Zcom_11244_10460com_11244_6231col_11244_10462
Comprehensive study of three selected areas of farm mechanics as a basis for curriculum construction and course planning
Baker, Richard Albert
Price, Robert R.
Edington, Everett D.
Walker, Odell L.
Schroeder, E. W.
Susky, John E.
2016-02-09T17:07:18Z
2016-02-09T17:07:18Z
2016-02-09T17:07:18Z
1964-05
http://hdl.handle.net/11244/27803
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/216622020-02-24T16:21:00Zcom_11244_10460com_11244_6231col_11244_10462
Leafspot reactions of Cercospora arachidicola and Cercosporidium personatum on peanuts and other selected plant species
Pyzner, John Ray
Wadsworth, Dallas F.
Sturgeon, Ray V., Jr.
Melouk, Hassan A.
Russell, Charles C.
Eikenbary, Raymond D.
Thomas, John E.
2015-11-09T22:51:10Z
2015-11-09T22:51:10Z
2015-11-09T22:51:10Z
1980-05
http://hdl.handle.net/11244/21662
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/336112020-02-24T16:21:00Zcom_11244_10460com_11244_6231col_11244_10462
Urban created wetlands as an alternative to urban ponds: An analysis of environmental and economic benefits
White, Lisa M.
Willett, Keith D.
Salisbury, Jayne M.
Lawler, James J.
2016-04-25T14:53:36Z
2016-04-25T14:53:36Z
2016-04-25T14:53:36Z
1998-07
http://hdl.handle.net/11244/33611
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
oai:shareok.org:11244/72162020-05-21T16:34:37Zcom_11244_10460com_11244_6231col_11244_10462
Teaching style preferences and educational philosophy of teacher education faculty at a state university
Fries, Cindi H.
McCharen, B.
Ausburn, L.
Mendez, J.
Harris, E.
Scope and Method of Study:
An educational philosophy and teaching style provide a foundation for understanding and for guiding guide decisions about curriculum, teacher-learner relationship and professional practice. The purpose of this descriptive quantitative study was to describe the educational philosophies and teaching styles of the teacher educators at a specific Midwestern state university in the United States and to compare this to the preferred educational philosophy and teaching style of the university's College of Education (COE). All teacher educators (N=122) at this university were invited via the university's e-mail system to participate in this on-line survey. A total of 45 participants responded. The variables of education philosophy were measured using the Philosophy of Adult Education Inventory (PAEI). Teaching styles, as measured using the Principles of Adult Learning Scale (PALS), were categorized as either learner-centered or teacher-centered. The educational philosophies used in this study were liberal, behavioral, humanism, progressive and radical. The educational philosophies and teaching styles were examined in relationship to the demographic variables of: gender age, academic rank, assigned college at the university, years working in higher education, years teaching at the university, Pk-12 teaching experience and Pk-12 administration experience. The concepts of pedagogy and andragogy were contrasted between adult educators, and higher education and Pk-12 educators.
Findings and Conclusions:
It was found that the majority of teacher education faculty held the progressive educational philosophy and their preference for teacher-centered teaching style did not match. This may indicate that they believe in, but are not utilizing, the concepts of learner-centered teaching styles. The COE and faculty were in congruence with the same philosophy, however they differed in the faculty preferred teaching style. With the exception of gender and Pk-12th grade teaching, demographic variables had no statistical significance.
2013-11-26T08:33:20Z
2013-11-26T08:33:20Z
2013-11-26T08:33:20Z
2012-07
http://hdl.handle.net/11244/7216
Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.
qdc///col_11244_10462/100