Now showing items 1-20 of 23

    • Beta-lactamases in the multidrug resistance opportunistic bacterial pathogen Elizabethkingia anophelis 

      Perdue, Sidney; Tolliver, Hunter (Oklahoma State University, 2019-04-27)
      Beta-lactamases are bacterial enzymes that pose a serious threat within the healthcare field due to their antibiotic resistance towards commonly prescribed antibiotics, including penicillins, cephalosporins, and cephamycins. ...
    • Cellular senescence in cultured human brainstem astrocytes: Effect of oxidative stress 

      Leibhart, Zane (Oklahoma State University, 2019-04-27)
      Cardiovascular diseases are one of the leading causes of mortality in the elderly. A central role in the contraction of cardiovascular diseases by means of aging could be played by cellular senescence. Senescent cells ...
    • Client depletion assay comparison of paclitaxel to Hsp90 inhibitors 

      Wagner, Lori; Cartmell, Taylor; Jurczak, Joanna; Kiel, Klaudia (Oklahoma State University, 2019-04-27)
      Many researchers have claimed they have found a successful inhibitor of Hsp90; however, we suspect they are only successful when the inhibitor is used in large quantities. On top of being one of the easiest ways to show ...
    • Determining the role of Gɑ3, Gɑ8, and PakF in Dictyostelium signaling 

      Kiger, Nicholas (Oklahoma State University, 2019-04-27)
      Dictyostelium discoideum is a free-living amoeba found in the soil. Dictyostelium (commonly referred to as "slime mold") exists as a unicellular amoeba in optimal environmental conditions. In suboptimal conditions (specifically ...
    • Distribution of Daphnia resting eggs: Invasive vs native and their effects 

      Enders, Kacie (Oklahoma State University, 2019-04-27)
      Daphnia lumholtzi is an example of a successful aquatic invasive species. When conditions are less favorable, D. lumholtzi switch from producing female eggs to the production of diapausing eggs (called ephippia) that are ...
    • DNA barcoding for identifying zooplankton 

      Phelps, Braylen (Oklahoma State University, 2019-04-27)
      DNA barcoding is still a relatively new field of study that is gaining popularity as it becomes more available. But there is no single protocol that works consistently and efficiently. While there are protocols that have ...
    • Dying light: Detecting tree mortality risk with chlorophyll fluorescence 

      Giddens, Megan (Oklahoma State University, 2019-04-27)
      Increased greenhouse emissions have altered Earth's climate, resulting in rapid climate change which has brought warm droughts-especially in semi-arid regions-leading to forest die-off and dieback. Physiological stresses ...
    • Effect of idiographic worry on emotional processing 

      Watkins, Austin K. (Oklahoma State University, 2019-04-27)
      Emotional processing to internal threat is increasingly being studied as a way to evaluate the effect of worry on attention. The current study seeks to use event related potentials (ERPs), specifically the Late-Positive ...
    • Effect of microhabitat and body size on toe pad size in arboreal, semi-arboreal, and torrential frogs 

      Butefish, Alexis (Oklahoma State University, 2019-04-27)
      Frogs can be classified into specialized microhabitats, and for our study, we chose to focus on arboreal (tree dwelling), semi-arboreal (tree and terrestrial dwelling), and torrential (freshwater stream dwelling) species. ...
    • Effects of 17β-estradiol on gonadal morphology in Acris blanchardi 

      Horner, Samantha; Charles, Zoe (Oklahoma State University, 2019-04-27)
      Endocrine disrupting compounds, like 17β-estradiol (E2), contaminate wildlife habitats, which leaves organisms vulnerable to compounds that have adverse effects on their gonadal development. Amphibians are the most vulnerable ...
    • Effects of L protein on MreB and cell lysis 

      Templon, Alannah; Karthik, Reddy; Young, Ry (Oklahoma State University, 2018-04-19)
      The MS2 bacteriophage is a single-stranded, positive-strand RNA virus that contains four genes: mat, coat, rep, and L. The L protein is responsible for cell lysis, although relatively little is known about its mode of ...
    • Effects of paternal deprivation on nestling zebra finches (Taeniopygia guttata) 

      Giddens, Emily (Oklahoma State University, 2019-04-27)
      Early interactions between parents and offspring have been shown to influence behavior development in avian offspring, which links to their fitness as adults. In bi-parental species, previous research has looked at what ...
    • Effects of vancomycin and ceftazidime on biofilm formation in Elizabethkingia 

      Fritch, Bradley R.; Lanier, Braden M. (Oklahoma State University, 2019-04-27)
      Elizabethkingia infections are associated with high mortality rates which is due in part to the antibiotic resistance expressed by all Gram-negative Elizabethkingia species. Biofilm formation by Elizabethkingia provides ...
    • Evaluating the core microbiome of Manduca sexta 

      Johnson, Macy (Oklahoma State University, 2019-04-27)
      Microbiomes are complex communities of microorganisms that colonize many surfaces of an animal's body, especially those niches lined with carbohydrate-rich mucosal layers such as the eyes, male and female reproductive ...
    • Examining the role of MekA and YakA in Dictyostelium signaling 

      Dreadfulwater, Stormie (Oklahoma State University, 2019-04-27)
      A series of trials were conducted to determine how each protein or kinase plays a role in the signaling of a cell. Among the factors tested were response time, extent of response, and the response under varying stimuli ...
    • Feeding behavior of Acheta domesticus infected with Paragordius varius 

      Lagarde, Bailey; Dixon, Kierra; Henneha, Beau (Oklahoma State University, 2019-04-27)
      There has not been a lot of research on the phylum nematomorpha, hairworms. There is a large gap in the knowledge of hairworms in their host-parasite relationship, especially on their dietary habits. Our study observed the ...
    • How can the measurement of fluorescence help with Eastern Red Cedar disaster? 

      Roopnarinesingh, Christian (Oklahoma State University, 2019-04-27)
      Juniperus virginiana, more commonly known as the Eastern Red Cedar, has caused excess economic damage due to its dynamic flammability in the Great Plains. Research on the variables in which Eastern Red Cedars are flammable ...
    • How temperature may affect horses: Using ethograms to examine horse behavior based on variations in weather 

      Davidson, Madissen T. (Oklahoma State University, 2019-04-27)
      This study is to serve as a baseline for future research regarding horses. The study was conducted by observing the horse's behavior and characteristics in various weather conditions from a proximal distance of 75 ft (25 ...
    • Interacting effects of soil microbes and spiders on plant growth 

      Smith, Gabriella (Oklahoma State University, 2019-04-27)
      Biotic factors contribute greatly to the success of nutrient cycling, this is done by recycling and translocating nutrients microbe. Research has shown that high densities of predators affect the amount of nutrients deposited ...
    • Phylogeny of Sonoran Desert milkweeds resolved with plastid genome sequences 

      Gentry, Shelby (Oklahoma State University, 2019-04-27)
      The Sonoran Desert Clade milkweeds have very unusual traits, including species that are nearly leafless and shrubby. This clade includes 9 species for which we estimate a phylogenetic tree and use this information to better ...