Digital Commons Network^™

The Design And Characterization Of Gold Nanoclusters As Elementary Building Blocks, Heather Gaebler

Theses and Dissertations (Comprehensive)

Gold nanoclusters with diameters in the quantum size regime (< ~2 nm) are promising building blocks for the design of novel nanomaterials as they exhibit unique size-dependent properties that can be altered and fine-tuned. The research outlined in this PhD thesis employs density functional theory to construct and analyze small ligand-protected cage and rod-shaped nanoclusters. Chapter 2 reports stable halide-protected gold nanocages that were engineered to have a closed-shell valence electron count of 18. This study finds that nanocages comprised of 19 and 20 gold atoms can be converted into stable magic number species containing 18 valence electrons by modifying their charged states via adsorption of halide ligands to the cage’s surface. Chapter 3 reports stable ligand-protected gold nanoclusters with a tetrahedral Au₄ core that were engineered to have a closed-shell valence electron count of 2. This study investigates the structural and electronic effects of halide and alkoxy ligands on the tetrahedral nanocluster and concludes that the results support the broader conclusion that it’s possible to fine-tune the stability and electronic properties of small gold nanoclusters using appropriate ligands. Chapter 4 reports stable gold nanorods that have diameters in the quantum regime that were constructed from elementary building blocks that contain “halide-staples”. This study presents different orientations of the “halide-staple” motifs on …

Sales Enablement In Entrepreneurial Ventures: Essays On The Role Of Social Capital And Resilience In Disruptive Environments, Ali Anwar

Theses and Dissertations (Comprehensive)

Enduring commercial success of entrepreneurial ventures is often associated with effective selling and an ability to navigate dynamic environments. However, two challenges stand out: 1) effectively managing cross-functional integration of sales with other value-creating organizational functions, given that selling in the contemporary organization is a multi-actor, strategic effort, and 2) being resilient to environmental disruptions, given the increasing frequency of their occurrence. I take a sales enablement perspective to focus on themes which are essential to optimizing sales performance in entrepreneurial ventures. The first theme focuses on internal social capital embedded in the cross-functional relationships of the sales, marketing, and …

Nomological Network Retrieval: The Development Of A Methodological Process For The Review Of Knowledge Structures In Academia And Its Application To Marketing Scholarship, Mohammad Ali Simjour

Theses and Dissertations (Comprehensive)

The increasing supply of peer-reviewed marketing publications indicates that the scholarly community’s understanding of marketing phenomena has increased significantly. However, this significant increase also prevents individual scholars from gaining insight into marketing phenomena simply because the sheer number of publications make a manual review of the literature impossible. This is an important limitation mainly because the validity of knowledge development processes in marketing partially depend on the scholars’ comprehensive understanding of extant knowledge. In this dissertation, I develop a methodological process to address this limitation and enable scholars to gain insight into large samples of peer-reviewed publications. I then apply …

(Re)Mediating History In Canadian Auto/Biographic Long Poems Since 1970, Heather Olaveson

Theses and Dissertations (Comprehensive)

Responding to current topics of national debate around cultural appropriation, authenticity of voice and identity, historical commemoration, and foundational systems of social injustice, this dissertation takes as its launching point the question of how we are implicated in each other's histories. It examines the politics of rewriting history in Canadian auto/biographic long poems from 1970 to the present, reconsidering historiography as it intersects with life writing, gender, race, and the performance of voice. What narratives are reimagined about the lives of Canadian historical figures, how are such stories articulated, and who is permitted to perform the telling? As a whole, …

Borsuk–Ulam Type Theorems For G-Spaces With Applications To Tucker Type Lemmas, Oleg R. Musin, Alexey Yu. Volovikov

School of Mathematical & Statistical Sciences Faculty Publications

In this paper we consider several generalizations of the Borsuk–Ulam theorem for G-spaces and apply these results to Tucker type lemmas for G-simplicial complexes and PL-manifolds.

Equity In Focus : Investigating Gender Disparities In Glioblastoma Via Propensity Score Matching, Solomon Eshun

School of Mathematical & Statistical Sciences Faculty Publications

Gender disparities in health outcomes have garnered significant attention, prompting investigations into their underlying causes. Glioblastoma (GBM), a devastating and highly aggressive form of brain tumor, serves as a case for such inquiries. Despite the mounting evidence on gender disparities in GBM outcomes, investigations specific at the molecular level remain scarce and often limited by confounding biases in observational studies. In this study, I aimed to investigate the gender-related differences in GBM outcomes using propensity score matching (PSM) to control for potential confounding variables. The data used was accessed from the Cancer Genome Atlas (TCGA), encompassing factors such as gender, …

Deriving Spatially Explicit Direct And Indirect Interaction Networks From Animal Movement Data, Anni Yang, Mark Q. Wilber, Kezia R. Manlove, Ryan S. Miller, Raoul Boughton, James Beasley, Joseph Northrup, Kurt C. Vercauteren, George Wittemyer, Kim Pepin

United States Department of Agriculture Wildlife Services: Staff Publications

Quantifying spatiotemporally explicit interactions within animal populations facilitates the understanding of social structure and its relationship with ecological processes. Data from animal tracking technologies (Global Positioning Systems [“GPS”]) can circumvent longstanding challenges in the estimation of spatiotemporally explicit interactions, but the discrete nature and coarse temporal resolution of data mean that ephemeral interactions that occur between consecutive GPS locations go undetected. Here, we developed a method to quantify individual and spatial patterns of interaction using continuous-time movement models (CTMMs) fit to GPS tracking data. We first applied CTMMs to infer the full movement trajectories at an arbitrarily fine temporal scale …

High Winds And Melting Sea Ice Trigger Landward Movement In A Polar Bear Population Of Concern, Annie Kellner, Todd C. Atwood, David C. Douglas, Stewart W. Breck, Colorado State University - Fort Collins

United States Department of Agriculture Wildlife Services: Staff Publications

Some animal species are responding to climate change by altering the timing of events like mating and migration. Such behavioral plasticity can be adaptive, but it is not always. Polar bears (Ursus maritimus) from the southern Beaufort Sea subpopulation have mostly remained on ice year-round, but as the climate warms and summer sea ice declines, a growing proportion of the subpopulation is summering ashore. The triggers of this novel behavior are not well understood. Our study uses a parametric time-to-event model to test whether biological and/or time-varying environmental variables thought to influence polar bear movement and habitat selection …

Evaluation Of The Effect Of Hydrated Lime On The Scavenging Of Feral Swine (Sus Scrofa) Carcasses And Implications For Managing Carcass-Based Transmission Of African Swine Fever Virus, Courtney F. Bowden, James Grinolds, Gregory Franckowiak, Loma Mccallister, Joe M. Halseth, Matthew Cleland, Travis Guerrant, Michael J. Bodenchuk, Robert Miknis, Michael C. Marlow, Vienna R. Brown

United States Department of Agriculture Wildlife Services: Staff Publications

African swine fever (ASF) is a devastating hemorrhagic disease marked by extensive morbidity and mortality in infected swine. The recent global movement of African swine fever virus (ASFV) in domestic and wild swine (Sus scrofa) populations has initiated preparedness and response planning activities within many ASF-free countries. Within the US, feral swine are of utmost concern because they are susceptible to infection, are wide-spread, and are known to interact with domestic swine populations. African swine fever virus is particularly hardy and can remain viable in contaminated carcasses for weeks to months; therefore, carcass-based transmission plays an important role in the …

Disease Progression And Serological Assay Performance In Heritage Breed Pigs Following Brucella Suis Experimental Challenge As A Model For Naturally Infected Feral Swine, Vienna R. Brown, Ryan S. Miller, Courtney F. Bowden, Timothy J. Smyser, Nicholas A. Ledesma, Aim E. Hartwig, Paul Gordy, Aaron M. Anderson, Stephanie M. Porter, Kate Alexander, Zane Gouker, Tom Gidlewski, Richard A. Bowen, Angela M. Bosco-Lauth

United States Department of Agriculture Wildlife Services: Staff Publications

Invasive feral swine (Sus scrofa) are one of the most important wildlife species for disease surveillance in the United States, serving as a reservoir for various diseases of concern for the health of humans and domestic animals. Brucella suis, the causative agent of swine brucellosis, is one such pathogen carried and transmitted by feral swine. Serology assays are the preferred field diagnostic for B. suis infection, as whole blood can be readily collected and antibodies are highly stable. However, serological assays frequently have lower sensitivity and specificity, and few studies have validated serological assays for B. suis in feral swine. …

Validation Of A Nutria (Myocastor Coypus) Environmental Dna Assay Highlights Considerations For Sampling Methodology, Anna M. Mangan, John A. Kronenberger, Ian H. Plummer

United States Department of Agriculture Wildlife Services: Staff Publications

Nutria (Myocastor coypus) is a semiaquatic rodent species that is invasive across multiple regions within the United States. Here, we evaluated a qPCR assay previously described for use in Japan for application across invasive populations in the United States. We also compared two environmental DNA sampling methodologies for this assay: field filtration of large volumes of water passed through filters versus direct sampling of small volumes of water. We validated assay specificity, generality, and sensitivity, compared assay performance between two independent laboratories, and successfully tested the assay in situ on a known wild population. The filtration method required …

Perturbations Highlight Importance Of Social History In Parakeet Rank Dynamics, Annemarie Van Der Marel, Xavier Francis, Claire L. O'Connell, Cesar O. Estien, Chelsea Carminito, Virginia Darby Moore, Nickolas Lormand, Bryan M. Kluever, Elizabeth A. Hobson

United States Department of Agriculture Wildlife Services: Staff Publications

Dominance hierarchies can provide many benefits to individuals, such as access to resources or mates, depending on their ranks. In some species, rank can emerge as a product of a group’s history of social interactions. However, it can be difficult to determine whether social history is critical to rank in observation-based studies. Here, we investigated rank dynamics in three captive groups of monk parakeets (Myiopsitta monachus). We used experimental social perturbations to test whether social history shapes rank emergence in these groups. Using targeted removals and reintroductions, we tested whether differently ranked individuals could re-take their ranks in hierarchies after …

I Am Queer And Asian: The Crossroad Of Race And Lgbtqia+ Identity Among Queer Asian Canadian Youth And The Impacts Of The Covid-19 Pandemic, Kenny Chee

Theses and Dissertations (Comprehensive)

LGBTQIA+ Asian youth face unique challenges due to their intersecting identities. Utilizing Asian Critical Race Theory and the Integration Model of Stress and Trauma in LGBTQIA+ Asians, LGBTQIA+ Asian youth are likely to experience detrimental mental health outcomes due to the stigmatization within their Asian culture and racial discrimination from the LGBTQIA+ communities. Moreover, the COVID-19 pandemic exacerbated existing challenges because of the closure of community spaces and increased hate crimes against Asians. Nonetheless, research on the intersectional experiences of LGBTQIA+ Asians in Canada, especially in the context of the COVID-19 pandemic is sparse. Thus, to address this gap, I …

Common Sense Or Sensibility: Vaccine Hesitancy, Parens Patriae, And The Common Good, George P. Smith Ii

Scholarly Articles

Contending with national emergencies that develop into transnational catastrophes gives rise inevitably to concerns raised by libertarians and utilitarians over the extent to which the government — state, local, and federal — can restrict or redirect personal conduct to contain, if not resolve, any existing emergency condition. Using its parens patriae powers to protect the common good — especially the communal benefits of health and safety — government must endeavor to establish health care policies, and here, mandate vaccinations to combat the COVID-19 pathogen, against the benefits that are accruing to the general public. The conclusion drawn from this Article …

Restricting Scientific Legitimacy In The Age Of Biotechnology?, George P. Smith Ii

Scholarly Articles

In the Age of Biotechnology, there is no more pressing question than whether a philosophy of science exists and translates into a notion that—with or without qualification—the sovereignty of science is central to the advancement of society and should be totally emancipated from concurrence or oversight by society at large. Far too many Americans choose neither to be “informed” nor to accept the responsibilities of citizenship to participate fully in a deliberative democracy—they have chosen instead to exercise their “right” to remain ignorant. Consequently, science reigns without restraint or even review. The scientific community has a coordinated responsibility to society, …

Short Circuiting The Administrative Judiciary: A Response To Linda Jellum, Marshall J. Breger

Scholarly Articles

Linda Jellum provides a powerful analysis of the status of the exhaustion process for the SEC administrative judiciary and more broadly of the entire administrative judiciary. Many of her arguments are telling and on point. I disagree with a number of her technical and statutory arguments, and even more so the consequences of her analysis for the administrative state as we know it.

Jellum's argument is that Congress did not intend to preclude district courts from hearing constitutional challenges to SEC adjudications because agency ALJs are not the right adjudicators to hear challenges to the constitutionality of their own operations.

Property And Moral Responsibilities: Some Reflections On Modern Catholic Social Theory, Lucia A. Silecchia

Scholarly Articles

Professor Eric Claeys’s forthcoming book, Natural Property Rights, offers a deep perspective on property rights principles. However, while the law tends to focus—as I believe it must—on property rights, rights are inextricably intertwined with duties or responsibilities. The natural rights framework for property is, as Claeys says, “good enough for government work.” It reflects a principled way for the government to allocate property rights and use the law to protect them.

However, it is necessary to look beyond what is desirable for government to protect through law. Other sources propose parameters for reasoned use of property with an emphasis on …

Creating A Trust Through Delegation, Raymond C. O'Brien

Scholarly Articles

Aging in America has precipitated increasing use of planning for incapacity devices, which include forms creating powers of attorneys ("POAs'). Simple forms may be found online, or they may become part of a sophisticated estate planning portfolio drafted by professionals. Resultingly, to support portability, enforceability, and protection against financial exploitation of vulnerable adults, the National Conference of Commissioners on Uniform State Laws approved the Uniform Power of Attorney Act in 2006 ("UPOAA "), which has been adopted by more than half of United States jurisdictions. One of the Act's provisions requires an express grant of authority contained within the principal's …

Private Caregiver Presumption For Elder Caregivers, Raymond C. O'Brien

Scholarly Articles

The percentage of older Americans increases each year, with a corresponding percentage increase of those considered the older old. Many older persons will develop chronic conditions, decreasing their ability to manage the activities of daily living and requiring many to move into assisted living facilities or group homes. When surveyed, a majority of people expressed that they wish to age in their own homes, and government programs are increasingly supportive of this option. This is a viable option for many if they have the assistance of private caregivers—who provide a vast array of support services—and essential person-to-person human contact during …

The 2022 Conference Of Religiously Affiliated Law Schools: Reflections On Faculty Vocation And Support, Lucia A. Silecchia

Scholarly Articles

In the United States, numerous law schools identify themselves as “religiously affiliated.” There are many opportunities and challenges that come with such affiliation. What “religiously affiliated” may mean for a law school’s faculty is a particularly critical aspect of this question. I was grateful to have been invited to reflect on what religious affiliation might mean for faculty hiring at the “Past, Present, and Future of Religiously Affiliated Law Schools” conference. What follows are reflections that consider not merely that question—important as it is—but also explore what happens after the hiring decision to make the vocation to teach at a …

The Bare Necessity Of Natural Law, Adam J. Macleod

Scholarly Articles

According to legend, someone asked literary giant Samuel Clemens, better known as Mark Twain, whether he believed in infant baptism. He replied that, not only did he believe in it, he’d seen it done. Hundreds of generations of lawyers and jurists, including many of the most influential legal scholars and judges in history, have believed in natural law for the same reason. And many still do.

Natural law and natural rights are not “nonsense on stilts,” as Jeremy Bentham famously dismissed them.1 Natural law reasoning is what lawyers and judges do every day. Today, many people tend to think of …

Opus As The Core Of Property, Adam J. Macleod

Scholarly Articles

No account of property law can achieve a comprehensive understanding without factoring in natural rights. Professor Eric Claeys's new book offers a significant contribution to contemporary property theory by setting out the most comprehensive and defensible theory of natural property rights to appear in a long time. Claeys describes the function of property as productive work. Intentional planning, purposeful effort, and creative ordering enable people to achieve lives of flourishing. And, as Claeys demonstrates in careful detail, the various norms and institutions of property law make possible those exercises of practical reason and the flourishing that results from them. Natural …

Pressure Induced By Roll-Down Foam-Earplugs On Earcanal, Ahmed Dalaq, Luiz Melo, Franck Sgard, Olivier Doutres, Éric Wagnac

Études primaires

Physical discomfort of earplug is a common complaint, so much so it jeopardizes the health and safety of workers, resulting in frequent noncompliance to proper wearing of earplugs. A pressing need thus arises to understand the underlying mechanics for the interaction of earplugs with earcanal walls. An idealized cylindrical geometry of earcanal is first treated with computational and analytical modeling to predict the pressure induced by roll-down cylindrical PVC foam earplugs. In order to predict representative pressure values and distribution, we estimated the hyperelastic properties of foam-based earplugs and characterized their behavior using a stent testing machine (J-Crimp^TM machine) …

Commonalities And Differences In Carotid Body Dysfunction In Hypertension And Heart Failure, Igor S. A. Felippe, Rodrigo Del Río, Harold D. Schultz, Benedito H. Machado, Julian F R Paton

Journal Articles: Cellular & Integrative Physiology

Carotid body pathophysiology is associated with many cardiovascular-respiratory-metabolic diseases. This pathophysiology reflects both hyper-sensitivity and hyper-tonicity. From both animal models and human patients, evidence indicates that amelioration of this pathophysiological signalling improves disease states such as a lowering of blood pressure in hypertension, a reduction of breathing disturbances with improved cardiac function in heart failure (HF) and a re-balancing of autonomic activity with lowered sympathetic discharge. Given this, we have reviewed the mechanisms of carotid body hyper-sensitivity and hyper-tonicity across disease models asking whether there is uniqueness related to specific disease states. Our analysis indicates some commonalities and some potential …

Year In Review July 2022 To June 2023 And President's Report

Jackson Purchase Historical Society Journal Archive

President's Report: July 2022 - June 2023

Bill Mulligan

Book Reviews

Jackson Purchase Historical Society Journal Archive

Book Reviews

Traces: a novel

The Gospel of Freedom: Black Evangelicals and the Underground Railroad

The Accidental Fame and Lack of Fortune of West Tennessee's David Crockett

Liberty Brought Us Here: The True Story of American Slaves Who Migrated to Liberia

The Finest Place We Know: A Centennial History of Murray State University

A Brutal Reckoning: Andrew Jackson, the Creek Indians, and the Epic War for the American South

A Crime Of Passion In Calloway County

Jackson Purchase Historical Society Journal Archive

A Crime of Passion in Calloway County

Bobby Smith Bryant

Calloway County Bicentennial Celebration: A Panel Discussion

Jackson Purchase Historical Society Journal Archive

Calloway County Bicentennial Celebration: A Panel Discussion

Bill Mulligan, Bobby Smith Bryant, Gina Winchester, Randy Patterson, and Pat Seiber

"Ideal Press Work": The Contributions Of Kentucky Suffrage Press Superintendents To Public Relations History

Jackson Purchase Historical Society Journal Archive

"Ideal Press Work": The Contributions of Kentucky Suffrage Press Superintendents to Public Relations History

Melony Shemberger

Development Of A Latex Agglutination Test Based On Vh Antibody Fragment For Detection Of Streptococcus Suis Serotype 2, Kiratika Chidkoksung

Chulalongkorn University Theses and Dissertations (Chula ETD)

Streptococcus suis serotype 2 (S. suis 2) is an important porcine pathogen that causes diseases in both swine and humans. For rapid S. suis 2 identification, a novel latex agglutination test (LAT) based on heavy-chain variable domain antibody (VH) was developed. Firstly, the soluble 47B3 VH antibody fragment from a phage display library, in which cysteine residues were engineered at the C-terminus, was expressed in Escherichia coli. The purified protein was then gently reduced to form monomeric soluble 47B3 VH subsequently used to coat with latex beads by means of site-specific conjugation. The detection sensitivity was found to be as …