Digital Commons Network^™

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 …

Integrating The Theory Of Planned Behavior And Bonding Social Capital To Examine Chinese Women’S Tampon Use Intentions, Yin Yang, Young Kim

College of Communication Faculty Research and Publications

This study integrates the theory of planned behavior with a structural approach to examining social capital to investigate how bonding social capital affected Chinese women’s tampon use intentions. Bonding social capital was operationalized as network closure, which included two main dimensions: density and hierarchy. Results from an online survey (N = 766) showed that network density was positively associated with attitudes toward, social norms about, and perceived behavior control around tampon usage, while network hierarchy negatively predicted attitudes only. Moreover, the indirect effects of network density on tampon use intentions were mediated by descriptive norms and perceived behavior control. …

Whose Public Virtue? Exploring Freedom Of Information Efficacy And Support, A.Jay Wagner

College of Communication Faculty Research and Publications

Little is known about public perceptions of how FOI laws influence government operations or impact citizens’ daily lives. A large representative sample of U.S. adults was surveyed for support of FOI laws and perceptions of FOI efficacy. Findings showed advanced education and higher perceptions of general government efficacy to be strongly significant in predicting both support for FOI and greater FOI efficacy. Males and liberal respondents also demonstrated significance in predicting support for FOI and higher FOI efficacy, while Black race was a significant negative predictor in support for FOI and whether FOI improved government operations and accountability.

Examining The Lived Experiences Of Families With Children With Developmental Disabilities Participating In Recreational Dance Programs, Isabella Seguin

Theses and Dissertations (Comprehensive)

Objective

Families with children with developmental disabilities (DDs) experience effects on family functioning and will often turn to physical activity (e.g., dance) to mitigate these effects. This research examines the lived experiences of families with children with DDs participating in recreational dance programs to understand the myriad of effects on all participants: children with DDs, families, and dance instructors.

Methods

In order to fully understand the lived experiences of participants, phenomenology was used as the theoretical orientation to guide this research. Each case (5 cases, N=19) consisted of a primary parent, a child with a developmental disability, sibling(s) (if applicable), …

Still, We Thrive: Understanding How Gay, Bisexual, Transgender, And Other Men Who Have Sex With Men (Gbtmsm) Experience Structural Barriers & Facilitators To Wellness, Lucas Gergyek

Theses and Dissertations (Comprehensive)

Historically and concurrently, structural violence has been a significant force influencing the sexual health and broader health of gay, bisexual, transgender and other men who have sex with men (GBTMSM). Yet to date, the majority of projects exploring the health inequities facing GBTMSM have focused on intrapsychic and behavioural factors as most related to poor health outcomes. As well, these studies are sometimes deficits focused, and fail to evaluate how GBTMSM continue to thrive, and maintain positive health. As a result, the ways in which systems and policies underlie and perpetuate health inequities facing GBTMSM have been somewhat obscured. Connectedly, …

Utilizing Ground-Penetrating Radar To Estimate The Spatial Distribution Of Snow Depth Over Lake Ice In Canada’S Sub-Arctic, Alicia Pouw

Theses and Dissertations (Comprehensive)

With the expected rise in air temperature, it becomes important to understand how snow will respond in different climate scenarios. The presence of snow over lake ice largely influences the ice thickness, and as Canada’s Arctic and sub-arctic regions are experiencing warming at twice the global rate, concerns rise as changes in the snowpack will significantly impact northern communities that rely on lake ice as a means of transportation, source for drinking water, and feeding their families. The distribution of snow depth is highly sensitive to changes in climate over time, as such a slight increase in air temperature or …

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 …

Kirtan In The Americas: Music And Spirituality In A Transcultural Whirlpool, Gustavo Moura

Theses and Dissertations (Comprehensive)

Kirtan (Sanskrit: कीर्तन; IAST: Kīrtana) is a broad term referring to various forms of devotional singing commonly done in South Asian traditions. It is a core practice in the Hindu and Sikh faiths that is becoming increasingly popular around the world among people of all ethnicities. Beyond its expected propagation within Hindu and Sikh diasporas, kirtan is also spreading among members of new religious movements such as ISKCON and the 3HO/Sikh Dharma, who may engage in this practice as part of their daily cultivation. Even more broadly, a form of what has been called “neokirtan” has been gaining popularity in …

Potential Effects Of Road Proximity On Zooplankton Communities And Water Quality In Lakes In The Northwest Territories, Marie N. Hannan

Theses and Dissertations (Comprehensive)

Studies conducted along Canada’s Dempster Highway in the Northwest Territories have shown that road dust can affect water quality in roadside lakes, leading to higher calcium, conductivity, and pH levels. These water quality changes have the potential to affect important members of the lower aquatic food web, such as zooplankton.

For my thesis research, I had two main objectives: 1) To determine if changes in water chemistry caused by deposition of road dust affects zooplankton communities; and 2) To examine if the type of roadside vegetation influences the effects of road dust on aquatic habitats. To achieve these objectives, I …

Deep In The Shadows Of Loss: An Exploration Of Grief, Mourning, And Intellectual Disability, Cara Grosset

Theses and Dissertations (Comprehensive)

This qualitative research project explores grief and mourning experiences of people labelled/with intellectual disabilities subsequent to the death of someone important in their lives. The primary research question was: in what ways do people labelled/with intellectual disabilities experience grief after the death of a significant person in their lives? The need for a project of this kind is grounded in the lack of research and social work practice literature related to better understanding grief, mourning, and support experiences after a death from the perspective of people labelled/with intellectual disabilities. The dual purpose of this research is to better understand (and …

Transformations Towards Just Urban Sustainabilities: A Community Psychology Approach To Analyzing And Fostering Urban Changes, Bianca C. Dreyer

Theses and Dissertations (Comprehensive)

Cities are uniquely positioned to drive social change towards more just and sustainable futures. However, while discourses of ‘transformations towards sustainability’ have gained prominence, their focus on integrating equity and justice and tackling the root causes of current unsustainabilities is lacking. This document outlines a research endeavor aimed at analyzing and fostering urban sustainable transformations from a community psychology perspective. This research is based on the assertion that without radical change based in equity and justice considerations, transformative efforts fail. First, a theory of just urban sustainable transformations (JUST) is suggested that draws on urban transformations and just sustainabilities scholarship. …

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, …

The Curious Case Of Tort Liability For A Defective Product That The Defendant Did Not Make, Sell, Or Distribute, Marin Roger Scordato

Scholarly Articles

Rarely does the United States Supreme Court consider and decide an issue of tort law, especially one that does not implicate any aspect of federal constitutional law.

The problem of bare-metal equipment is just such an issue, taken up and addressed by the U.S. Supreme Court less than three years ago in the case of Air and Liquid Systems Corp. v. DeVries. Despite the Court’s opinion, the question continues to generate different responses from state courts and fails to enjoy much accord or consensus at the state-law level, where it has the greatest practical impact. The problem presented to the …

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 …

Assisted Suicide, Forced Cooperation, And Coercion: Reflections On A Brewing Storm, Lucia A. Silecchia

Scholarly Articles

Because government funds to institutions and individuals finance a significant amount of medical care in the United States, the prospect of conditions or “strings” attached to that funding is an ever-present specter.

Parental Rights: In Search Of Coherence, Elizabeth Kirk

Scholarly Articles

The Supreme Court has referred to parental rights as “the oldest of the fundamental liberty interests recognized by this Court.”¹ Yet, disagreements about the nature and scope of parental rights have proliferated in recent years.

“Recommend . . . Measures”: A Textualist Reformulation Of The Major Questions Doctrine, Chad Squitieri

Scholarly Articles

Following Biden v. Nebraska, defenders of the major questions doctrine (which requires administrative agencies to identify “clear congressional authorization” to regulate “major” issues) can be categorized as falling within one of two camps. The first camp includes Justices Gorsuch and Alito, who view the major questions doctrine as a substantive canon. The second camp includes Justice Barrett, who explained in Nebraska that she is “wary” of adopting new substantive canons, and indicated that she considers the major questions doctrine to be a linguistic canon. Interestingly, both camps have relied on an influential scholar to advance their positions: then Professor …

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 …

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) …

Repeated Social Defeat Stress Induces An Inflammatory Gut Milieu By Altering The Mucosal Barrier Integrity And Gut Microbiota Homeostasis, Santosh K. Yadav, Rizwan Ahmad, Cassandra M. Moshfegh, Jagadesan Sankarasubramanian, Vineet A. Joshi, Safwan K. Elkhatib, Yashpal S. Chhonker, Goeffrey A. Talmon, Chittibabu Guda, Adam Case, Amar B. Singh

Journal Articles: Cellular & Integrative Physiology

Background

Posttraumatic stress disorder (PTSD) is a mental health condition triggered by exposure to traumatic events in an individual’s life. Patients with PTSD are also at a higher risk for comorbidities. However, it is not well understood how PTSD affects human health and/or promotes the risk for comorbidities. Nevertheless, patients with PTSD harbor a proinflammatory milieu and dysbiotic gut microbiota. Gut barrier integrity helps to maintain normal gut homeostasis and its dysregulation promotes gut dysbiosis and inflammation.

Methods

We used a mouse model of repeated social defeat stress (RSDS), a preclinical model of PTSD. Behavioral studies, metagenomics analysis of the …

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 …

Indigenous Long-Term Supports And Services – Elders, Traditional Knowledge, And Tree Rings, Cole Allick

Theses and Dissertations

American Indian and Alaska Native (AI/AN) Elders are rapidly aging and are a growing segment of Indian Country. Elders are critical to knowledge dissemination and enable the resiliency of Indigenous peoples through their teachings, wisdom, and guidance. There is a dire need to better understand and prepare for this rapidly aging population given that reliable data is limited or simply nonexistent. This dissertation in practice utilizes a framework inspired by Indigenous teachings of the Medicine Wheel and from the social ecological model to address the literature gap regarding Elders and healthy aging. This framework was created with intention that each …

Remote Sensing Of Chlorophyll-A In Small And Medium Lakes In The Minnesota Northern Forest Ecoregion, Jacob Alan Moll

Theses and Dissertations

Algae blooms have become increasingly common in many bodies of water and are occurring in more and more new locations. Past methods have relied on in-situ sampling to determine Chl-a concentrations and can be time and cost intensive. With the use of NASA’s Harmonized Landsat imagery existing methods of index calculation can be implemented, with the added benefit of an increase in temporal resolution. This increase in temporal resolution allows for more detailed spatial and temporal analysis such as hot spot analysis. Harmonized Landsat imagery was proven sufficient in spatial and temporal resolution for detection of Chl-a in small and …

When The Verdict Is Not So Black And White: Juror Perceptions And Judgments Of Biracial Defendants, Mariah Sorby

Theses and Dissertations

Racial disparities are a persistent issue within the United States criminal justice system. Past research has investigated how defendant characteristics (e.g., race and phenotype) and juror attitudes and beliefs (e.g., stereotypes and prejudice) influence mock juror case judgments and perceptions. This literature has primarily investigated outcomes for monoracial defendants. However, there is a significant need for research investigating outcomes of multiracial defendants. The purpose of this project was to investigate the influence of phenotype, crime stereotypes, and juror attitudes on case judgments and perceptions of Black-White Biracial defendants compared to White and Black defendants. Participants were randomly assigned to view …