Digital Commons Network^™

Thinking Outside The Building: Developing A Library Ambassador Program Across Campus(Es), Lydia C. Gwyn

ETSU Faculty Works

In an effort to address declining university retention rates and to reach students who may not make it to the library for research help, the Sherrod Library at East Tennessee State University (ETSU) is in the process developing a peer-mentoring program. This program is one way the library can help the institution in its efforts raise student retention rates and improve student success. Peer learning programs have proven successful in tutoring centers and elsewhere in the university for decades, and research has shown that trained undergraduates are ideal candidates for delivering general reference and information literacy instruction to their peers …

Niche Modeling For The Genus Pogona (Squamata: Agamidae) In Australia: Predicting Past (Late Quaternary) And Future (2070) Areas Of Suitable Habitat, Julie E. Rej, T. Andrew Joyner

ETSU Faculty Works

Background: As the climate warms, many species of reptiles are at risk of habitat loss and ultimately extinction. Locations of suitable habitat in the past, present, and future were modeled for several lizard species using MaxEnt, incorporating climatic variables related to temperature and precipitation. In this study, we predict where there is currently suitable habitat for the genus Pogona and potential shifts in habitat suitability in the past and future. Methods: Georeferenced occurrence records were obtained from the Global Biodiversity Information Facility, climate variables (describing temperature and precipitation) were obtained from WorldClim, and a vegetation index was obtained from AVHRR …

First Occurrence Of The Enigmatic Peccaries Mylohyus Elmorei And Prosthennops Serus From The Appalachians: Latest Hemphillian To Early Blancan Of Gray Fossil Site, Tennessee, Evan M. Doughty, Steven C. Wallace, Blaine W. Schubert, Lauren M. Lyon

ETSU Faculty Works

Two peccary species, Mylohyus elmorei and Prosthennops serus are described from the medium-bodied fauna of the Gray Fossil Site (GFS) of northeastern Tennessee. This site, recognized as an oak-hickory forest, is latest Hemphillian or earliest Blancan based on mammalian biochronology, with an estimated age of 4.9-4.5 Ma. The GFS represents the only site outside the Palmetto Fauna of Florida with M. elmorei, greatly expanding the species range north over 920 km, well into the Appalachian region. This is also the first Appalachian occurrence of the relatively widespread P. serus. Our understanding of intraspecific variation for both M. elmorei and P. …

The Fragile Helix: Damage, Repair, Disease, And Cell Death, Aaron Perles

The Synapse: Intercollegiate science magazine

No abstract provided.

Oberlin's Clear Center: Building Quantitative Skills Since 2012, Tara Santora

The Synapse: Intercollegiate science magazine

No abstract provided.

Lab-Grown Meat: Food Savior Of The Future Or An Elusive Ambition?, Jayla Johnson

The Synapse: Intercollegiate science magazine

No abstract provided.

Front Matter

The Synapse: Intercollegiate science magazine

No abstract provided.

.01%: The Germs That Hand Sanitizers Don’T Kill, Nathalie Weiss

The Synapse: Intercollegiate science magazine

No abstract provided.

Behind The Opioid Crisis: A Primer On Opioid Function, Overdose, And Reversal, Ceclilia Wallace

The Synapse: Intercollegiate science magazine

No abstract provided.

The Curious Case Of Dictyostelium Discoideum: How Slug Farming Bacteria Could Teach Us About Epigenetics, Carson Mccann

The Synapse: Intercollegiate science magazine

No abstract provided.

Front Matter

The Synapse: Intercollegiate science magazine

No abstract provided.

You Can't Always Trust Your Gut, Kallie Jiang

The Synapse: Intercollegiate science magazine

No abstract provided.

The Anthropocene: How Modern Geologists Are Creating A Paradigm Shift In Our Concept Of Time, Monica Dix

The Synapse: Intercollegiate science magazine

No abstract provided.

Gravity Ridge, Alexander Metz

The Synapse: Intercollegiate science magazine

No abstract provided.

Front Matter

The Synapse: Intercollegiate science magazine

No abstract provided.

International Collaboration In Cuban Rivers: When Oberlin Connects You To Scientists Across The World, Monica Dix

The Synapse: Intercollegiate science magazine

No abstract provided.

Gold Standard For Green Spiders: Proposals For Excellence In Sustainability At The University Of Richmond, Harleen Bal, Quinn Egner, Ganon Hingst, Ashley James, Mary Kate Jaromin, Caroline Jones, Maria Psarakis, Callie Rountree-Jablin, Peter D. Smallwood

Environmental Studies Senior Seminar Projects

The University of Richmond should commit to achieving the Gold Standard rating by the AASHE Campus Sustainability Index by 2024. Gold Standard for Green Spiders includes eight proposals that taken together, will move UR up from our current silver rating to gold. This volume also includes short summaries of the sustainability programs of eight of the top ten most sustainable liberal arts colleges in the nation. The eight student authors of these chapters completed their works as part of the Environmental Studies Senior Seminar course, the capstone course for Environmental Studies majors.

Scandal And Mass Politics: Buganda's 1941 Nnamasole Crisis, Carol Summers

History Faculty Publications

Summers discusses Buganda's 1941 Nnamasole crisis following the Christian marriage of Irene Namaganda, Buganda's queen mother who was pregnant with her slightly older lover. Namaganda's Christian marriage was powerfully scandalous, profoundly violating expectations associated with marriage and royal office. The scandal produced a political crisis that toppled Buganda's prime minister, pushed his senior allies from power, deposed the queen mother, exiled her husband, and changed Buganda's political landscape. The scandal launched a new era of public mobilization and protest that took Buganda's politics beyond the realm of deals between the oligarchy and British elites, and into public gossip, newspapers and …

A Different Kind Of Learning For A Different Kind Of Learner : Justification Of And Best Practices For The Use Of Performing Arts Education For Autistic Students, Jacob Anthony Litt

Honors Theses

In our culture, our history, and our society, the arts play a vital role. However, despite maintaining such a fundamental place in our shared experiences, the arts’ role in education is in constant need of clarification and defense. In addition, the presence of individuals with cognitive and developmental disabilities has become increasingly common in society, and yet special educational programs for these individuals, especially in their early years, have proven unable to find total success. These two fields of education – arts education and special education – thus share a common struggle: a need to find an established place in …

Interactions Between Two Key Amphibian Defenses To Batrachochytrium Dendrobatidis In Panamanian Glass Frogs (Espadarana Prosoblepon), Andi Levorse

Honors Theses

Research on the amphibian pathogen Batrachochytrium dendrobatidis (Bd), the causative agent of the lethal disease chytridiomycosis, has advanced from assessments of pathogenicity and species susceptibility to more specialized questions concerning the complex interactions between the pathogen, species-specific immune responses, and the environment. Our work examines the potential for interactions between the two most important innate immune defenses of frogs against Bd: secretions of antimicrobial peptides and communities of commensal cutaneous bacteria. While both defenses have been studied individually, little data are available to examine interactions between these defenses. We conducted our study with field captured Panamanian glass frogs …

Community Structure Of The Microbiome Of Ixodes Scapularis In Relation To Sex, Stage, Lineage, And Geography, Christopher Lee Clark

Honors Theses

This study sought to fill these gaps of knowledge ticks as a model species. Based on the known information on the microbiome of vectors, and ticks more specifically, I sought to answer two prominent questions: are there relationships between the microbiome of individual ticks and do ticks from different sexes or life stages have variance in their microbiomes? In reference to my first question, I hypothesized that ticks coming from the same lineage, being the males, 7 Community Structure of the Microbiome of Ixodes scapularis females, and resulting eggs, would have a more similar microbiome to each other than to …

Understanding The Structural Basis Of Sike Interactions, Alice Catalano

Honors Theses

Tank Binding Kinase 1 (TBK1) acts as a catalytic hub in the regulation of numerous immune signaling pathways. Suppressor of IκB Kinase ε (SIKE) was recently characterized as a substrate of TBK1 whose binding properties are modulated by phosphorylation state, but very little is currently known about its function. However, because SIKE is known to form a dimer with itself, previous work generated a list of potential SIKE partners based on other proteins that contain sequences homologous to SIKE. Here, computational models of four potential SIKE partners, Heavy Chain myosin, tubulin, Beta Catenin and Ezrin, were generated and docked with …

The Effectiveness Of Promotions In Minor League Baseball : A Study Of The Eastern League, Collin R. Zucker

Honors Theses

Minor League Baseball (MiLB) is comprised of 247 teams playing in 17 leagues at six different levels. Every team in these leagues is an affiliate of a Major League Baseball (MLB) team, but many are privately owned and are therefore financially independent. While MiLB primarily serves as a development environment for future MLB players, profit maximization is still a goal of various front offices. Minor League Baseball has existed for over a century but only recently have teams been regarded as profitable investments. In Forbes’ “Most Valuable Minor League Teams” list published in 2016, the average value of the top …

Bartonella And Y. Pestis Screening In Ctenophyllus Armatus Terribilis For Conservation Application For The America Pika (Ochotona Princeps) In The Rocky Mountain Front Range, Hilary Rinsland

Honors Theses

As temperatures continue to disproportionally increase in alpine regions due to climate change, parasite spillover from increased pika-rodent contact could bring new diseases to a susceptible alpine specialist, the American pika (Ochotona princeps). Fleas collected from pika at four alpine and subalpine study sites in Boulder County, Colorado from 2011-2017 were screened for Y. pestis and Bartonella using conventional PCR methods. This is the first study to detect Bartonella in the American Pika flea Ctenophyllus armatus terribilis and to propose the presence of B. grahmii in the alpine region of the Rocky Mountains.

Tree Thinning And Fire Affect Ectomycorrhizal Fungal Communities And Enzyme Activities, Ann L. Rasmussen, J. Stephen Brewer, Colin R. Jackson, Jason D. Hoeksema

Faculty and Student Publications

Common ecological restoration treatments such as thinning trees and prescribed burning could result in changes to soil fungal communities and changes to the function of those communities. Ectomycorrhizal fungi are especially likely to be affected as they are symbionts on plant roots and exhibit host and niche preferences. Ectomycorrhizal fungi also produce extracellular enzymes that are important in soil nutrient cycling. We conducted a community survey of ectomycorrhizal fungi and assayed ectomycorrhizal root tip enzyme activity using substrate plugs in northern Mississippi upland oak–pine woodland plots differing in restoration history to explore the influence of woodland restoration on ectomycorrhizalfungal community …

Environmental Monitoring Report January 2016-June 2017, Tennessee. Department Of Environment And Conservation.

Environmental Monitoring Report

No abstract provided.

Mining And Analysis Of Real-World Graphs, Armita Abedijaberi

Doctoral Dissertations

"Networked systems are everywhere - such as the Internet, social networks, biological networks, transportation networks, power grid networks, etc. They can be very large yet enormously complex. They can contain a lot of information, either open and transparent or under the cover and coded. Such real-world systems can be modeled using graphs and be mined and analyzed through the lens of network analysis. Network analysis can be applied in recognition of frequent patterns among the connected components in a large graph, such as social networks, where visual analysis is almost impossible. Frequent patterns illuminate statistically important subgraphs that are usually …

Bifunctional Porous Polymeric Fiber As A Catalyst For N-Phenylglycine Synthesis And Carbonation Of Propylene Oxide To Propylene Carbonate, Ahmed Abdulghani Almuslem

Masters Theses

"In this study, development of a polymeric bi-functional porous catalyst that can be used in various applications such as batch, packed-bed, and continuous flow reactors and the formation of highly important chemicals that have many applications in the industry. With this material many homogenous reactions can be conducted in heterogeneous environment which is more efficient and profitable. The catalyst was formed by grafting hollow fiber with APS then immobilized with Br using 1,2-dibromoprobane (Br/APS/PAI-HFs). The formed catalyst was tested with BET and FTIR to confirm the immobilization of Br. A porous polymeric material Br/APS/PAI-HFs provides the ability for ring opining …

Fluid Flow In A Krogh Cylinder: A Model For A Single Capillary And Surrounding Tissue, Xianjie Qiu

Masters Theses

"A model describing the flow of plasma from the capillaries to the interstitial space in the extravascular tissue and back into the capillaries is constructed and solved. The flow through the tissue or the interstitial spaces is described by the Brinkman equation for porous medium, modified to account for the presence of cells considered as spheres. The flow of blood through the capillaries is considered to be that of a Newtonian fluid. The flow between capillary and tissue is coupled by the permeability of the capillary wall. The nature of flow and its magnitude was found to be highly dependent …

Characterization Of Free-Radical Solution Polymerizations Of Acrylamide Initiated By Persulfate Initiator Systems, Yashu Chen

Masters Theses

”In order to reduce the water production and improve the oil recovery of mature reservoir, various conformance control technologies have been extensively developed. Preformed particle gel (PPG), a cost-effective plugging agent, has been successfully applied to block the high permeability zone and thus to displace the water to up-swept zone.

A common PPG based on polyacrylamide hydrogel have been wildly used. Identifying the parameters that affect gelation performance and understand how these parameters affect the performance is very useful to predict and manipulate the gelation time and to control the performance of gels.

The objective of this research is to …