Index Catalog // ScholarsArchive@OSU

Dogs, Death, and Dietary Breadth: Insights into the Macroecology and Macroevolution of Canidae

Creator:: Tanis, Brian P.
Abstract:: The size, shape, and stability of a species’ dietary niche can both influence and reflect a variety of biological patterns, including species interactions, extinction risk, and ecosystem function. This is particularly apparent when dietary changes manifest at ecosystem and clade scales to profoundly affect macroecological and macroevolutionary trajectories. However, many...
Resource Type:: Dissertation
Full Text:: ABSTRACT OF THE DISSERTATION OF Brian P. Tanis for the degree of Doctor of Philosophy in Zoology

Sex-based differences in anti-predator response of crickets to chemical cues of a mammalian predator

Creator:: Tanis, Brian P., Bott, Bradley, and Gaston, Brian J.
Abstract:: Anti-predator behaviors like vigilance or hiding come at the expense of other fitness increasing behaviors such as foraging. To compensate for this trade-off, prey assess predation risk and modify the frequency of anti-predator behaviors according to the likelihood of the threat. In this study, we tested the ability of house...
Resource Type:: Article
Full Text:: 11 June 2018 Corresponding author Brian P. Tanis, tanisb@oregonstate.edu Academic editor Ann

Dental microwear textures across cheek teeth in canids: Implications for dietary studies of extant and extinct canids

Creator:: Tanis, Brian P., DeSantis, Larisa R. G., and Terry, Rebecca C.
Abstract:: Dental microwear texture analysis (DMTA) has been instrumental in reconstructing dietary ecology of extinct and extant carnivorans. Current sampling methods for canids focus on lower second molars (m2), where the grinding of flesh and bone captures dental microwear indicative of diet. However, dental microwear on other biomechanically analogous grinding facets...
Resource Type:: Article
Full Text:: -mail: larisa.desantis@vanderbilt.edu Corresponding Author: Brian P. Tanis, E-mail: tanisb

Mahler's order functions and algebraic approximation of p-adic numbers

Creator:: Dietel, Brian Christopher
Abstract:: If P is an integer polynomial denote the degree of P by ∂(P) and let H(P) be the maximum of the absolute value of the coefficients of P. Define Λ(P)=2[superscript ∂(P)]H(P) and for a fixed prime p let C[subscript p] denote the completion of the algebraic closure of the p-adic...
Resource Type:: Dissertation
Full Text:: Algebraic Approximation of p-adic Numbers by Brian Christopher Dietel A THESIS submitted to Oregon

Stags of the Sea or Hedgehogs of the Harbor? Inferring the Point of Sculpin Cranial Weaponry

Creator:: Buser, Thaddaeus J.
Abstract:: Animal weapons are thought to have evolved to compete for reproductive opportunities within a species. Across the diverse weapon-bearing taxa, several evolutionary trends have emerged: (1) increasing complexity and relative size across ontogeny, (2) sexual dimorphism, and (3) higher levels of random deviations from symmetry (i.e., fluctuating asymmetry) than non-weaponized...
Resource Type:: Dissertation
Full Text:: ; COTTOIDEA) Thaddaeus J. Buser, Brian L. Sidlauskas, and Adam P. Summers

Genetic and morphological evidence suggests cryptic speciation within the Torrent Sculpin, Cottus rhotheus, across the Pacific Northwest

Creator:: Nicholas, Benjamin P.
Abstract:: Dwelling on the bottom of large rivers to high alpine streams, freshwater sculpins (genus Cottus) occur in high densities across the Pacific Northwest, with 21 currently recognized species found in the Pacific Northwest. Sculpin fill many ecological roles, with some species serving as important prey sources, and others competing with...
Resource Type:: Honors College Thesis
Full Text:: :_____________________________________________________ Brian Sidlauskas Dwelling on the bottom of large rivers to high alpine streams

Crossing Boundaries during Stress Responses: Antigen Presentation by Adaptive and Innate MHC Class I Molecules

Creator:: Nagamine, Brandy S.
Abstract:: The immune system is a complex network of cellular processes working in harmony to guard us against pathogenic attack. Of utmost importance is the ability of the immune system to discriminate between “self” and “non-self” and diseased versus healthy. Recognition of antigens complexed to major histocompatibility complex (MHC) molecules is...
Resource Type:: Dissertation
Full Text:: : _____________________________________________________ Brian P. Dolan The immune system is a complex network of cellular processes working

Non-Canonical Nedd8 Conjugation Mediated Targeted Protein Degradation and Direct Antigen Presentation

Creator:: Vijayasimha, Kartikeya
Abstract:: While the role of ubiquitin in protein degradation is well established, the role of other ubiquitin-like proteins (UBLs) in protein degradation is less clear. Neural precursor cell expressed developmentally down-regulated protein 8 (NEDD8) is the UBL with the highest level of amino acid identity when compared to ubiquitin. Here we...
Resource Type:: Dissertation
Full Text:: Presentation. Abstract approved: ______________________________________________________ Brian P. Dolan

Steady-State Diffusion in a Spatially Varying Porous Medium

Creator:: Ferrero, Peter T.
Abstract:: Heterogeneous porous material represents a persistent challenge in the field of engineering. Microscale properties such as the porosity and microchannel torturosity significantly control the macroscale transport characteristics of homogeneous porous medium. Additional complexity is introduced when these small-scale features vary in space. Examples of heterogeneous porous systems include artificial body...
Resource Type:: Masters Thesis
Full Text:: Diffusion in a Spatially Varying Porous Medium Abstract approved: Brian D. Wood Heterogeneous porous

Investigation into the role of strength and toughness in composite materials with an angled incident crack

Creator:: Grimm, Brian A.
Abstract:: Understanding the mechanical behavior of composite materials requires extensive knowledge of fracture behavior as a crack approaches an interface between the bulk material and the reinforcement structure. Overall material toughness can be greatly influenced by the propensity of an impinging crack to propagate directly through the substrate or deflect along...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Brian A. Grimm for the degree of Master of Science in Mechanical

ScholarsArchive@OSU

Dogs, Death, and Dietary Breadth: Insights into the Macroecology and Macroevolution of Canidae

Sex-based differences in anti-predator response of crickets to chemical cues of a mammalian predator

Dental microwear textures across cheek teeth in canids: Implications for dietary studies of extant and extinct canids

Mahler's order functions and algebraic approximation of p-adic numbers

Stags of the Sea or Hedgehogs of the Harbor? Inferring the Point of Sculpin Cranial Weaponry

Genetic and morphological evidence suggests cryptic speciation within the Torrent Sculpin, Cottus rhotheus, across the Pacific Northwest

Crossing Boundaries during Stress Responses: Antigen Presentation by Adaptive and Innate MHC Class I Molecules

Non-Canonical Nedd8 Conjugation Mediated Targeted Protein Degradation and Direct Antigen Presentation

Steady-State Diffusion in a Spatially Varying Porous Medium

Investigation into the role of strength and toughness in composite materials with an angled incident crack

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