Digital Commons Network^™

Clemson University Board Of Trustees, Finance And Facilities Committee, 2024 February 1, Clemson University Board Of Trustees

Minutes

No abstract provided.

Waste In Relation To Populism: The Case Of Tunis, Aya Khadija Guen

Senior Theses

Throughout this body of work, I explore the challenges faced regarding proper waste management and its interconnectedness in political developments. Specifically, I examine this subject in the case of the greater metropolitan area of Tunis. Having lived in Tunisia each summer since I was born, I have seen the many stages of the country’s waste issue. I came to my research to discover the conditions that have led to illegal dumpsites and Tunisia’s growing waste management issue. The waste management sector regressed post-2011 revolution. With this, I have always assumed that the waste issue is intertwined with the country’s political …

Calorie Restriction Reduces Biomarkers Of Cellular Senescence In Humans, Zaira Aversa, Thomas A. White, Amanda A. Heeren, Cassondra A. Hulshizer, Dominik Saul, Xu Zhang, Anthony J.A. Molina, Leanne M. Redman, Corby K. Martin, Susan B. Racette, Kim M. Huffman, Manjushri Bhapkar, Sundeep Khosla, Sai Krupa Das, Roger A. Fielding, Elizabeth J. Atkinson, Nathan K. Lebrasseur

Clinical Research Faculty Publications

Calorie restriction (CR) with adequate nutrient intake is a potential geroprotective intervention. To advance this concept in humans, we tested the hypothesis that moderate CR in healthy young-to-middle-aged individuals would reduce circulating biomarkers of cellular senescence, a fundamental mechanism of aging and aging-related conditions. Using plasma specimens from the Comprehensive Assessment of Long-term Effects of Reducing Intake of Energy (CALERIE™) phase 2 study, we found that CR significantly reduced the concentrations of several senescence biomarkers at 12 and 24 months compared to an ad libitum diet. Using machine learning, changes in biomarker concentrations emerged as important predictors of the change …

Longitudinal Profiling Of Fasting Plasma Metabolome In Response To Weight-Loss Interventions In Patients With Morbid Obesity, Mingjing Chen, Guanhong Miao, Zhiguang Huo, Hao Peng, Xiaoxiao Wen, Stephen Anton, Dachuan Zhang, Gang Hu, Ricky Brock, Phillip J. Brantley, Jinying Zhao

Population and Public Health Science Faculty Publications

It is well recognized that patients with severe obesity exhibit remarkable heterogeneity in response to different types of weight-loss interventions. Those who undergo Roux-en-Y gastric bypass (RYGB) usually exhibit more favorable glycemic outcomes than those who receive adjustable gastric banding (BAND) or intensive medical intervention (IMI). The molecular mechanisms behind these observations, however, remain largely unknown. To identify the plasma metabolites associated with differential glycemic outcomes induced by weight-loss intervention, we studied 75 patients with severe obesity (25 each in RYGB, BAND, or IMI). Using untargeted metabolomics, we repeatedly measured 364 metabolites in plasma samples at baseline and 1-year after …

Effector-Triggered Susceptibility By The Rice Blast Fungus Magnaporthe Oryzae, Ely Oliveira-Garcia, Xia Yan, Miriam Oses-Ruiz, Samuel De Paula, Nicholas J. Talbot

Faculty Publications

Rice blast, the most destructive disease of cultivated rice world-wide, is caused by the filamentous fungus Magnaporthe oryzae. To cause disease in plants, M. oryzae secretes a diverse range of effector proteins to suppress plant defense responses, modulate cellular processes, and support pathogen growth. Some effectors can be secreted by appressoria even before host penetration, while others accumulate in the apoplast, or enter living plant cells where they target specific plant subcellular compartments. During plant infection, the blast fungus induces the formation of a specialized plant structure known as the biotrophic interfacial complex (BIC), which appears to be crucial for …

Survival And Cause-Specific Mortality Of Male Wild Turkeys Across The Southeastern United States, Patrick H. Wightman, Erin E. Ulrey, Nicholas W. Bakner, Jay R. Cantrell, Charles R. Ruth, Emily Rushton, Cody A. Cedotal, John C. Kilgo, David J. Moscicki, Krishna Pacifici, Christopher E. Moorman, Bret A. Collier, Michael J. Chamberlain

Faculty Publications

Estimating survival and cause-specific mortality of male eastern wild turkeys (Meleagris gallopavo silvestris) is important for understanding population dynamics and implementing appropriate harvest management. To better understand age-specific estimates of annual survival and harvest rates, we captured and marked male wild turkeys with leg bands (n = 311) or bands and transmitters (n = 549) in Georgia, Louisiana, North Carolina, and South Carolina, USA, during 2014–2022. We fitted time to event models to data from radio-marked birds to estimate cause-specific mortality and annual survival. We used band recovery models incorporating both band recovery and telemetry data to further investigate harvest …

Robust Assessment Of Associations Between Weather And Eastern Wild Turkey Nest Success, Wesley W. Boone, Christopher E. Moorman, David J. Moscicki, Bret A. Collier, Michael J. Chamberlain, Adam J. Terando, Krishna Pacifici

Faculty Publications

Temperature and precipitation have been identified as factors that potentially influence eastern wild turkey (Meleagris gallopavo silvestris) reproduction, but robust analyses testing the relationship between weather parameters and turkey nest success are lacking. Therefore, we assessed how weather influenced turkey daily nest survival using 8 years of data collected from 715 nests across the southeastern United States. We also conducted exploratory analyses investigating if weather conditions during or prior to nesting best predicted nest success. We then assessed the possible implications of climate change through 2041–2060 for future eastern wild turkey daily nest survival and nest success for variables determined …

Understanding Implications Of Detection Heterogeneity In Wildlife Abundance Estimation, Jeffrey L. Laake, Bret A. Collier

Faculty Publications

Negative bias in mark-recapture abundance estimators due to heterogeneity in detection (capture) probability is a well-known problem, but we believe most biologists do not understand why heterogeneity causes bias and how bias can be reduced. We demonstrate how heterogeneity creates dependence and bias in mark-recapture approaches to abundance estimation. In comparison, heterogeneity, and hence estimator bias, is not as problematic for distance sampling and mark-resight methods because both techniques estimate detection probabilities based on a known quantity. We show how the introduction of a known number of individuals planted into a study population prior to a mark-recapture survey can reduce …

Effects Of Metformin On Glucose Metabolism And Mitochondrial Function In Patients With Obstructive Sleep Apnea: A Pilot Randomized Trial, Elizabeth R.M. Zunica, Elizabeth C. Heintz, Wagner S. Dantas, R. Caitlin Hebert, Ma Kayla Tanksley, Robbie A. Beyl, Edward C. Mader, John P. Kirwan, Christopher L. Axelrod, Prachi Singh

Division of Basic Science Faculty Publications

Obstructive sleep apnea (OSA) is associated with increased risk for diabetes, and standard treatment with positive airway pressure (PAP) device shows inconsistent effects on glucose metabolism. Metformin is known to treat and prevent diabetes, but its effects on skeletal muscle mitochondrial function are not completely understood. Here, we evaluate the effects of metformin on glucose metabolism and skeletal muscle mitochondrial function in patients with OSA. Sixteen adults with obesity (50.9 ± 6.7 years, BMI: 36.5 ± 2.9 kg/m2) and moderate-to-severe OSA were provided with PAP treatment and randomized to 3 months of placebo (n = 8) or metformin (n = …

Embryonic Exposure To The Benzotriazole Ultraviolet Stabilizer 2-(2h-Benzotriazol-2-Yl)-4-Methylphenol Decreases Fertility Of Adult Zebrafish (Danio Rerio), Yamin Raza, Emily Mertens, Lauren Zink, Zhe Lu, Jon A. Doering, Steve Wiseman

Faculty Publications

Benzotriazole ultraviolet stabilizers (BUVSs) are emerging contaminants of concern. They are added to a variety of products, including building materials, personal care products, paints, and plastics, to prevent degradation caused by ultraviolet (UV) light. Despite widespread occurrence in aquatic environments, little is known regarding the effects of BUVSs on aquatic organisms. The aim of the present study was to characterize the effects of exposure to 2-(2H-benzotriazol-2-yl)-4-methylphenol (UV-P) on the reproductive success of zebrafish (Danio rerio) following embryonic exposure. Embryos were exposed, by use of microinjection, to UV-P at < 1.5 (control), 2.77, and 24.25 ng/g egg, and reared until sexual maturity, when reproductive performance was assessed, following which molecular and biochemical endpoints were analyzed. Exposure to UV-P did not have a significant effect on fecundity. However, there was a significant effect on fertilization success. Using UV-P-exposed males and females, fertility was decreased by 8.75% in the low treatment group and by 15.02% in the high treatment group relative to control. In a reproduction assay with UV-P-exposed males and control females, fertility was decreased by 11.47% in the high treatment group relative to the control. Embryonic exposure to UV-P might have perturbed male sex steroid synthesis as indicated by small changes in blood plasma concentrations of 17β-estradiol and 11-ketotestosterone, and small statistically nonsignificant decreases in mRNA abundances of cyp19a1a, cyp11c1, and hsd17b3. In addition, decreased transcript abundances of genes involved in spermatogenesis, such as nanos2 and dazl, were observed. Decreases in later stages of sperm development were observed, suggesting that embryonic exposure to UV-P impaired spematogenesis, resulting in decreased sperm quantity. The present study is the first to demonstrate latent effects of BUVSs, specifically on fish reproduction. Environ Toxicol Chem 2024;43:385–397. © 2023 The Authors. Environmental Toxicology and Chemistry published by Wiley Periodicals LLC on behalf of SETAC.

Opposing Genetic Patterns Of Range Shifting Temperate And Tropical Gastropods In An Area Undergoing Tropicalisation, Karolina M. Zarzyczny, Michael E. Hellberg, Elena B. Lugli, Moira Maclean, David A. Paz-García, Marc Rius, Ethan G. Ross, Erick X. Treviño Balandra, James Vanstone, Suzanne T. Williams, Phillip B. Fenberg

Faculty Publications

Aim: The poleward range expansion of tropical species, and range contraction of temperate species (known as tropicalisation) has mainly been studied from an ecological perspective, with little research on its genetic consequences. Here, we used distributional and genetic data to document the consequences of tropicalisation in rocky shore gastropods and assess more broadly the future implications of tropicalisation on phylogeographic patterns. Location: Nineteen sampling sites along >3000 km of the eastern Pacific rocky intertidal zone, from the tip of the Baja California Peninsula to southern California. Taxon: Temperate gastropods: Lottia conus, L. strigatella, Fissurella volcano and Tegula gallina. Tropical gastropods: …

Prevalence Of Drifting Osteons Distinguishes Human Bone, Katherine M. French, Sophia R. Mavroudas, Victoria M. Dominguez

Publications and Research

The histological, or microscopic, appearance of bone tissue has long been studied to identify species-specific traits. There are several known histological characteristics to discriminate animal bone from human, but currently no histological characteristic that has been consistently identified in human bone exclusive to other mammals. The drifting osteon is a rare morphotype found in human long bones and observationally is typically absent from common mammalian domesticates. We surveyed previously prepared undecalcified histological sections from 25 species (human n = 221; nonhuman primate n = 24; nonprimate n = 169) to see if 1) drifting osteons were indeed more common in …

Greater Sage-Grouse Brood Locations On Parker Mountain Utah 1998-2009, David Dahlgren

Browse all Datasets

Species of conservation concern are often habitat specialists, posing significant risk to those species when specific plant communities are threatened. Despite this, practitioners habitually focus conservation efforts on these singular communities, while ignoring ecological mechanisms that explain the wildlife-plant relationships. In doing so, practitioners may overlook alternative vegetation communities that could maintain wildlife populations under alternative conditions (e.g., climate change). Here, we term these areas surrogate habitat, defined as "vegetation communities or resource sites that provide similar critical resources to conventional sites," and assess their potential for conservation using a case-study of Greater sage-grouse (Centrocercus urophasianus) on Parker Mountain, Utah …

Sustainability Spotlight, Hanley Sustainability Institute, University Of Dayton

Hanley Sustainability Institute Newsletter

No abstract provided.

Bookstagram And Beyond: Instagram As A Professional Development Tool, Carly Jessup

Georgia Library Quarterly

Learn how librarians can use Instagram for professional development.

The Effect Of Urbanization And Temperature On Thermal Tolerance, Foraging Performance, And Competition In Cavity-Dwelling Ants, Brooke A. Harris, Dale Stevens, Kaitlyn A. Mathis

Biology

Human disturbance including rapid urbanization and increased temperatures can have profound effects on the ecology of local populations. Eusocial insects, such as ants, have adapted to stressors of increasing temperature and urbanization; however, these evolutionary responses are not consistent among populations across geographic space. Here we asked how urbanization and incubation temperature influence critical thermal maximum (CT_max) and various ecologically relevant behaviors in three ant species in urban and rural locations in Worcester, MA, USA. We did this by incubating colonies of three species of cavity dwelling ant (Aphaenogaster picea, Tapinoma sessile, and Temnothorax longispinosus) from 2 habitat …

Fauna Associated With American Alligator (Alligator Mississippiensis) Nests In Coastal South Carolina, Usa, Thomas R. Rainwater, Randeep Singh, Clarissa A. Tuten, Aaron M. Given, Parker W. Gibbons, Bo Song, Steven G. Platt, Philip M. Wilkinson, Catherine M. Bodinof Jachowski

Biology

Crocodilians are considered to be “ecosystem engineers” because their modification of habitats provides opportunities for feeding, drinking, breeding, and other vital life activities to a wide variety of other animals. One such habitat modification is the construction of nest mounds during the breeding season by most crocodilian species, including American alligators (Alligator mississippiensis). While many reports exist describing wildlife associated with alligator nests, no studies have quantified faunal associates and their corresponding behaviors while visiting nests. To address this data gap, we used automated game cameras to monitor wildlife and their behaviors at alligator nests during the egg incubation period …

Artz 221a.02: Painting I, Kevin J. Bell

University of Montana Course Syllabi, 2021-2025

No abstract provided.

The Early Late Miocene Cessation Of Deep And Intermediate Water Circulation Through The Central American Seaway, Benjamin Stanley Kwiatkowski

Dissertations, Theses, and Capstone Projects

The state of the middle late Miocene global ocean circulations which regulated climate and affected deep ocean chemical environments were impacted by geographic changes. During the Miocene, cirum-equatorial circulations slowly decreased, which included through the seaway between the Americas called the Central American Seaway (CAS). Its shoaling and ultimate closing led to the onset of modern day oceanic circulation as characterized by the global thermohaline circulation. However, this seaway has a long hotly debated history concerning the timing of its restriction and shallowing owing in part to the shifting of tectonic plates.

The goal of this research focuses on investigating …

Learning From Their Flocks: Analyses Of Power On Hudson River Valley Livestock Farms, Mark D. D'Alessandro

Dissertations, Theses, and Capstone Projects

Livestock farming in the Hudson River Valley, and selling meat in New York City farmers’ markets, are activities bounded by a region, and heavily influenced by place. Farming is represented in this project as a material linkage between urban and rural, both shaped by power relations, and the respective places of production and consumption. Interrupted by the COVID-19 pandemic, this study investigates placemaking and power dynamics on farms, their marketplaces, and spaces in between, during normal market conditions, and those which are anything but normal. The findings expose the reader to the representations of place in a local, niche market, …

Equality, Solidarity, And Exploitation: An Essay On The Philosophical Foundations Of Socialism, Callum Zavos Macrae

Dissertations, Theses, and Capstone Projects

In popular consciousness and culture, equality is often considered to be the preeminent socialist value. Equality, on this view, sits at the heart of the socialist ideal, and those who ascribe great value to equality will, other things being equal, find themselves more predisposed towards socialism than those who do not. However, in recent years egalitarian accounts of the socialist ideal have increasingly come under criticism from defenders of an alternative, freedom-based approach to understanding the values that underpin socialist commitment. This dissertation proposes to defend the egalitarian account of the socialist ideal. By reconceptualizing equality, we can reconstruct a …

Using Leaf Spectra To Elucidate The Taxonomy And Ecology Of Living And Dried Plants, Natalia L. Quinteros Casaverde

Dissertations, Theses, and Capstone Projects

Identifying plants and understanding of changes in plant communities are crucial to the conservation and management of nature. The shortwave spectral reflectance of leaves is a promising tool for rapidly identifying species at different taxonomic ranks and predicting important plant functional traits. However, the spectral reflectance of leaves changes in response to biotic and abiotic conditions.

The aim of this dissertation is to investigate the potential of shortwave spectral reflectance to investigate (Chapter 1) how its variation affects the accuracy of methods used to predict plant taxonomies and what environmental factors most influence biophysically predicted traits, (Chapter 2) what are …

The Construction Of Victimhood In Human Trafficking Intervention Courts, Lauren Moton

Dissertations, Theses, and Capstone Projects

Human trafficking intervention courts (HTICs), specialty courts in the US designed to connect trafficking victims to services when they are arrested, require defendants to identify as victims of human trafficking in order to qualify for HTICs' services and other social supports. However, some defendants may be autonomously trading sex, thereby raising questions about the meaning of the term "victim" within HTICs. Therefore, my study asks the following: a) at the institutional level, how do HTICs’ rules, norms, procedures, and stakeholders implement and give meaning to the “victim” label, and why?; and b) at the individual level, how do people who …

Racial-Sexual Normativity In/As Narratives Of “The Human”, Jeri Brand

Dissertations, Theses, and Capstone Projects

This thesis synthesizes Sylvia Wynter’s and Judith Butler’s models of identity-formation to analyze discourses of racialization and sex/gender difference in normative scientific theories of “the human.” I argue that eugenicist white supremacism and sex/gender normativity form a single conceptual framework – what I call “the racial-sexual matrix” – throughout these scientific narratives. I then trace an epistemological consistency across 18^th- through 21^st-century scientific literature as evidence for the ongoing legacies of coloniality, white supremacy, and eugenics in current hegemonic sex/gender ontologies. Finally, I contend that the racial-sexual matrix functions as an index of proper humanness not …

Visualizing Ancient Empire In Tudor England: Imperial Monarchy, Reformation, And The Antique Soldier In The Title Page To Richard Grafton’S Large Chronicle (1569), Peter Nicholas Otis

Dissertations, Theses, and Capstone Projects

This thesis analyzes the iconography and visual sources of the title page to the first volume of A chronicle at large and meere history of the affayres of Englande (1569) by the Tudor author Richard Grafton. Representing the visual synthesis of several distinct but interrelated currents that developed in the preceding century, the title page to the Large Chronicle offers a rare glimpse into a transitional moment in the middle Tudor perception and visual representation of the British past. These currents include imperializing royal iconography, with origins in antecedent representations in the late fifteenth century; the entry of the ‘classicizing’ …

Without Us There Is No Britain: Black British Photography And Film Networks, 1950-1989, Maria T. Quinata

Dissertations, Theses, and Capstone Projects

This dissertation tracks three moments from 1950 to 1989, when images were put to work by Black photographers and filmmakers to stake individual and communal claims to Britain and Britishness: first, through the emergence of photographic portraiture taken in domestic living spaces during the 1950s to 1970s; second, through the Black Panther Movement and their use of photography in the late 1960s to mid 1970s, and last, with the efflorescence of Black film and video collectives in the 1980s. At each of these moments, I attend to the simultaneous production, negotiation, and co-mingling of new social identities that were diasporic, …

Algorithmic Love: Twenty-First Century Organizations Of The Romantic, Sandra Moyano Ariza

Dissertations, Theses, and Capstone Projects

This dissertation investigates the highly computed and accelerated experiences of digital love as well as their cultural and artistic representations in order to shed light on the human and more-than-human entanglements producing the algorithmic love experience. The recent turn to love in critical theory and cultural studies examines how love circulates in neoliberal societies and in the subjective processes of the users, foregrounding the control of populations and the very much lamented “end of love” (Illouz 2019). My study of love supplements the neoliberalist critique of algorithmic love with a posthuman and media theory approach that attends to the material …

The Role Of The Infralimbic-Basal Forebrain Pathway In Fear Extinction, Carolina Maria Fernandes Henriques

Dissertations, Theses, and Capstone Projects

The medial prefrontal cortex (mPFC) is a key region for emotion regulation, and its failure to regulate extinction of aversive memories is associated with Post Traumatic Stress Disorder. Study of how the Infralimbic cortex (IL), a subregion of the mPFC, directly communicates with the Basolateral Amygdala (IL-BLA), has thus far failed to uncover the circuit mechanisms that lead to mPFC-mediated amygdala suppression of firing and diminished fear responses during extinction retrieval. One problem of this model is that it doesn’t incorporate indirect IL communication with the BLA. A key region to help understand how IL modulates extinction is the basal …

Frenetic Journey Toward Muddledness: An Experimental Short Film, Fernando Vieira

Dissertations, Theses, and Capstone Projects

As an artist and Film Studies student, I saw the capstone option as an opportunity to consolidate academia with the art of filmmaking into one project. This became Frenetic Journey Toward Muddledness, an experimental short film written, directed, and edited by me. It is a film influenced by early avant-garde cinema, German expressionism, and film noir. Composed of pieces of unrelated footage and featuring an ambiguous, non-linear, and mostly silent narrative, the editing of the film prompted me to ask myself questions about its genre. Its hybridity made it possible to position the film within different categories, but there …

Of Method: A Propaedeutic To Coleridge's Prose Works, Michael A. Granger

Dissertations, Theses, and Capstone Projects

Coleridge’s prose works, published and unpublished, demonstrate a thorough and critical testing and understanding of British and German philosophical responses to skepticism and the ability of philosophy to progress by maintaining a double-minded and conflicted suture of both the practical or imaginative eclipse of knowledge and theorizing the hypothetical epistemological absolute that explains the relativity of facticity. Any inadequate method of inquiry stagnates within attempting a purely figurative or purely demonstrative solution to skepticism. Thus, the appropriate way to approach Coleridge’s understanding of philosophy is the struggle to make inquiry adequate though progression. Coleridge’s methodological impulse originates explicitly in a …