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Contribution to the taxonomy of Oxytropis campestris (L.) DC. in northwestern North America
Download1978
Masters thesis. Suggests elevation of five taxa of Oxytropis campestris to species status, based on chromosome studies.
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Correlations in morphology between the sexes in feather mites (Acari: Astigmata): precopulatory guarding and reproductive morphologies
DownloadFall 2013
Sexual dimorphism is prominent across animals. In addition to differences in size and colouration, the sexes may also differ in non-genitalic contact traits whereby the grasping morphologies of males are matched by either cooperative or resistant corresponding structures in females. Resistance...
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Development and Evolution of Complex Reproductive Traits in the Brassicaceae and Cleomaceae
DownloadSpring 2023
Flowering plants exhibit a bewildering diversity of forms, which raises fundamental questions on how that diversity arises. A cornerstone of evolutionary developmental biology is the expansion of comparative landscapes and establishment of focal clades that enable investigation of complex and...
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Fall 2014
An individual’s body weight is tightly regulated by balancing food intake with energy expenditure. This is accomplished in part by secretion of the hormone leptin by adipocytes, an excess of which signals to reduce appetite and increase activity through action in the hypothalamic region of the...
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Development, Anatomy, and Phylogenetic Relationships of Jawless Vertebrates and Tests of Hypotheses about Early Vertebrate Evolution
DownloadSpring 2018
The origin and early evolution of vertebrates remain one of the central questions of comparative biology. This clade, which features a breathtaking diversity of complex forms, has generated profound, unresolved questions, including: How are major lineages of vertebrates related to one another?...
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Electrophysiological and Genetic Aspects of Age-Related Macular Degeneration (AMD): Treatment Implications
DownloadFall 2014
Age-related macular degeneration (AMD) is considered a heterogeneous group of disorders. Although many genes influence susceptibility to disease, none has shown to be the primary contributor. To identify genetic contributors, distinct AMD phenotypes need to be established. We relied on...
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Spring 2011
This study researches student engagement with issues related to the interaction between science and religion. The researcher’s background in teaching both science classes and religion classes and as a chaplain became part of the context for researching student tension between science and religion...
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Spring 2016
Schlacht, Alexander Douglas William
One of the features that distinguishes eukaryotes from prokaryotes is the membrane trafficking system. This system underpins much of the functionality of the eukaryotic cell, and is necessary for feeding, motility and communication. Analyses aimed at addressing the evolution of this system have...
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Fall 2019
Emergent communication is a framework for machine language acquisition that has recently been utilized to train deep neural networks to develop shared languages from scratch and use these languages to communicate and cooperate. Previous work on emergent communication has utilized gradient-based...
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Spring 2017
Pulses of ecdysone, a steroid hormone, play an integral role during insect development however, how these ecdysone pulses are regulated has been relatively unexplored. I have shown that the presence of nitric oxide (NO) within the larval prothoracic gland (PG), the principal source of larval...