Life Sciences Commons^™

Adapting Network Theory For Spatial Network Externalities In Agriculture: A Case Study On Hemp Cross-Pollination, Jeffrey S. Young, Tanner J. Mccarty

Faculty & Staff Research and Creative Activity

Growers have increasingly expressed frustration over the negative externalities created by their neighbor's production practices. These spatial agricultural network problems include issues such as cross-pollination and herbicide drift. We develop novel methods for estimating parameters that allow us to adapt and apply general network diffusion models to these spatial agricultural network problems. Doing so allows us to calculate externality damage within a region and calculate cost-effective policies for alleviating that externality. We empirically illustrate, motivate, and test this approach by applying it to hemp. We find that network structure is an important factor in externality size and cost-effective policy response …

Biological Remediation Of Fragipan, Corey Hale

Honors College Theses

The fragipan layer in the soil is a naturally occurring subsurface layer that restricts water percolation as well as inhibits root growth. A fragipan layer can be found almost ubiquitously across Southwestern Kentucky. This limits how agriculturalists manage soils in this area. It has been recently discovered by the University of Kentucky that Annual Ryegrass roots produce 3,4 dihydroxyphenylpropionic acid (DHPPA) that reacts with this hardpan to weaken the layer. Certain bacteria, such as Escherichia coli, Lactobacilli, and Bifidobacteria can also synthesize DHPPA through a breakdown process of chlorogenic acid. This reaction typically happens in the human digestive tract. …

Seroprevalence And Titer Concentration Testing For Leptospirosis In Equine, Ashley Himmelsbaugh

Honors College Theses

The most common best management practice used to combat diseases in horses is vaccination, which can decrease the incidence or severity of illness. However, the duration of immunity will vary for each vaccination and must be considered for revaccination purposes. Titer concentration, which evaluates antibodies in the blood, may be a helpful way of determining how long an animal has immunity to a disease. Leptospirosis, a zoonotic, bacterial disease, can result in uveitis, potentially leading to blindness, and abortion in mares. One serovar, Leptospirosis pomona (L. pomona), is associated with most cases of clinical disease in horses in North America. …

Cougars In The Eastern United States, Justina Raleva, Kenneth Rieche

Scholars Week

Since the 1900s, cougars have been extirpated from nearly everywhere except the western United States parks and wilderness areas. In recent years, cougars have been starting to spread their range outside of the Rocky Mountains, towards eastern states like Illinois, Missouri, and Louisiana. The purpose of this project is to conduct outreach and education through a brochure that would educate locals in Kentucky and Tennessee regarding cougar safety and conservation importance.

Retrieve, Race, Release, Karamello Young, Paige Mccord, Madison Morrison, Emily Fitzgerald

Scholars Week

Title: Retrieve, Race, Release

by: Paige McCord, Karamello Young, Madison Morrison, Emily Fitzgerald

Abstract: This poster represents a service-learning project that was done for our conservation biology class. Our main goal is to educate the public about the negative impacts of turtle derbies. We did this by using educational materials to raise awareness about turtle races and the impact of painting them with toxic substances before releasing them into a habitat that is not their natural one. We did not seek out to prohibit or stop the races as that would cause people to shut down and not listen as …

Foliar Application Of Acetic Acid And Effectiveness Against Drought At Different Time Points In Soybean Development, Miranda Rudolph

Scholars Week

Abstract

Drought is arguably the most serious environmental factor affecting crop production today. A plants response to drought stress is extremely complex, affecting numerous metabolic pathways that are all interconnected in their responses. Due to this complex nature, scientists do not fully understand the implications of different treatments and how they affect these processes. Acetic acid has been shown to improve plant growth and resistance to drought stress, but exactly how it accomplishes this is also unknown. Soybeans (Glycine max) are one of the most important crops worldwide and can suffer significant yield loss due to drought stress. As climate …

The Use Of Nebulizer Medications As A Possible Treatment For Covid-19, Jacob Kaufman

Honors College Theses

For the past few years, the COVID-19 pandemic has been the focal point in healthcare and research. This disease has permanently changed daily life and left a historic impact on the world. Most people have felt the effects of this pandemic either directly, via infection, or indirectly, via change in workflow, financial impact, etc. The main question for this virus still remains today; how do we treat this illness effectively? While many ideas are being tested and suggested, a definite answer has yet to be procured. Vaccine rates are climbing on a daily basis, serving as the first and most …

Blue Zones: Unlocking Key Themes In The Centenarian's Life, Grace Beer, Grace O. Beer

Honors College Theses

Longevity has been sought after in certain areas of the world, and there are specific regions where this has been achieved. There is an American average life expectancy of 72 years old, but individuals in “Blue Zones” here in America and other areas of the world are expected to and have proven to live well beyond 100. The areas of Okinawa, Sardinia, Nicoya, Ikaria, and Loma Linda are classified as Blue Zones, and there could be more of an understanding of how these people live the way they do to have such healthy physical outcomes. To deeply understand the strategy …

The Use Of Hallucinogens In The Treatment Of Mental Health Disorders, Brianna Gagen

Honors College Theses

The percent of people with mental health disorders in the United States have skyrocketed over the past decade. With stigma surrounding the discussion of mental health and the symptoms associated with it, often those that are suffering do not receive sufficient treatment, as they might with a physical illness. The current, common treatment options for common psychological disorders, like depression, anxiety, and post-traumatic stress disorder, are sometimes not effective in patients, due to resistance or poor response outcomes. Consequently, in order to research alternative therapeutic approaches for mental health disorders, scientists are researching the effects of several hallucinogenic drugs in …

The Relationship Between People And The Tegu: A Review Of The Literature, Jordan Haley

Honors College Theses

This thesis will explore the relationship humans have had with tegu lizards and how it has evolved over time, from their historical use as a source of leather and bushmeat in South America to their more recent rise in the pet trade and consequential establishment as an invasive species in the United States.

Suicide Risk And School Related Stressors In Veterinary Students, Deanna Arnold

Steeplechase: An ORCA Student Journal

Compared to the general population of the United States, veterinarians are at an increasingly higher risk for suicide. This is commonly associated with stressful work environments, long work hours, poor work-life balance, client demands and complaints, and large amounts of euthanasia procedures. While many studies have been performed to confirm the above statements, few to no studies have been done on students currently enrolled in veterinary school to assess their mental health. This study will survey graduate school students in this field and will evaluate their mental health state and risk factors towards suicide. Through comparing the results of this …

Evaluating Gizzard Shad Dorosoma Cepedianum Populations In Two Kentucky Reservoirs Recently Invaded With Silver Carp Hypopthalmichthys Molitrix, Nathan Klein

Scholars Week

Gizzard Shad Dorosoma cepedianum are an ecologically important fish species found in many reservoirs throughout the southeastern United States such as Kentucky Lake and Lake Barkley. One current challenge that Gizzard Shad may face in these two reservoirs is competition with the invasive Silver Carp Hypophthalmichthys molitrix. However, quantifying the impacts of this competition may be difficult because of limited baseline population data for Gizzard Shad in these two reservoirs. The objective of this study is to describe size structure, condition, age, growth, mortality, and spawning potential of these two populations. Gizzard Shad were collected by boat electrofishing and …

Assessing The Influence Of Urban Greening On Urban Arthropods, Brendon Lawrence

Scholars Week

Green Heart is an urban greening experiment in Louisville, KY seeking to create new urban green spaces to ultimately increase air quality and improve human health. Changes in biodiversity in response to urban greening may influence human health via multiple hypothesized pathways including reducing harm (e.g. medicine provisioning), restoring capacities (e.g. reductions in stress), building capacities (e.g. increasing activity outdoors), and causing harm (e.g. zoonotic diseases). Arthropods are one component of diversity that may influence human health via each of these pathways. However, few studies have assessed the influence of Arthropod diversity on human health. Thus, the objective of our …

Fragile Foal Syndrome: Its Past, Present, And Future, Alena Martin, Alena M. Martin

Honors College Theses

Though Fragile Foal Syndrome (FFS) has been around for some time, the public interest in FFS is recent. The hype spread rapidly from a public media announcement that a stallion at a prominent North American stud farm was a carrier (Brooks, 2021). As with most genetic mutations, FFS likely arose due to the increased inbreeding that results from human selection (Orlando & Librado, 2019). Fragile Foal Syndrome affects the enzyme responsible for developing the connective tissues. Two recent case studies highlighted the devastating effect of FFS on every part of the equine body (Metzger, et al., 2020; Grillos, 2021). So …

Breadth Of Vaccinated Cancer Patient Humoral Response To Sars-Cov-2 Spike Protein And Rbd Variants, Julia Corman, Joey Breckenridge Jr., Adrienne M. Bushau-Sprinkle, Krystal T. Hamorsky, Joshua L. Fuqua

Posters-at-the-Capitol

SARS-CoV-2, the virus responsible for the COVID-19 of which several variants have emerged, such as the B.1.351 SARS-CoV-2 variant. The Receptor Binding Domain (RBD), located within the Spike protein is an immunogenic epitope for potent neutralizing antibodies. Current mRNA vaccines encode for the Spike protein, allowing the body to build antigen-specific antibodies. Assays measuring protective antibodies are essential to manage the COVID-19 pandemic and can be used as a platform for variant screening. RBD-foldon 2.2 is a novel antigen produced by fusing RBD with the trimerization domain Fibritin from Bacteriophage T4. Its amino acid sequence is based on the original …

The Effect Of A Vegetation Buffer On Sound Levels, Madison Cicha

Posters-at-the-Capitol

Noise pollution is a growing concern in the environmental health community. Unlike other common exposures, such as air and water pollution, noise is uniquely difficult for an individual to protect themselves from. Studies have shown multiple adverse health outcomes resulting from exposure to noise pollution, including hearing impairment, negative social behavior and annoyance, sleep disturbance, along with a strong association between noise pollution and high cardiovascular risk. It is important, then, to look for solutions to this exposure. This study is designed to assess the effects of a tree barrier in reducing traffic noise. Noise monitoring was conducted at Saint …

Wastewater-Based Estimation Of Substances Discharged At The Rest Areas Along The State Highways In Kentucky, Katherine E. Gray, Eugene Shin, Tyler Whitt, Andrew Windhorst, Houston Hampton, Chris Delcher, Bikram Subedi

Posters-at-the-Capitol

The availability of licit and illicit stimulants and its adverse consequences on public health has emerged as a major drug threat to communities in the United States. Despite several drug-involved traffic incidents along the interstate highways, this report represents the first comprehensive and quantitative report of drugs discharged at the rest areas along the interstate highways. In this National Institute of Justice-funded study, the amount of several discharged drugs focusing on stimulants but also including opioids and prescription antipsychotics are being measured in raw wastewater collected from five rest areas and a truck servicing facility using a state-of-the-art mass …

Aging Precision Using Sectioned Pectoral Fin Rays From Silver Carp Hypophthalmichthys Molitrix, Timothy Spier, Jessica Morris, Josh Tompkins

Faculty & Staff Research and Creative Activity

Many structures are used to age Silver Carp Hypophthalmichthys molitrix, but no consensus had been obtained concerning which structure is best. Previous studies have used sections from the pectoral spine, but some of those studies have used transmitted light to illuminate the annuli of the sectioned pectoral spine. We used reflected light to enhance the contrast of annuli in sectioned pectoral spines and compared the aging precision obtained from this method among 6 readers who varied in their aging experience. Overall precision as measure by the mean coefficient of variation (CV) was 5.23 ± 0.76SE, which compares well with …

The Role Of Glis3 In Zebrafish Endocrine Development And Regeneration, Tasha Swenney

Murray State Theses and Dissertations

Maintenance of proper blood glucose homeostasis is governed by the endocrine cells of the pancreas. Dysregulation of blood glucose is characteristic of the disease, diabetes mellitus. Relatively little is known about the molecular mechanisms that underlie diabetes. The genes associated with more common forms of diabetes remain more enigmatic and likely have less direct roles in blood glucose homeostasis such as glucose sensing, insulin secretion, and β cell maintenance. GLIS3, a transcription factor involved in pancreatic development as well as the transcriptional regulation of insulin has been identified as a risk locus for type 1 and type 2 diabetes …

Effects Of Covid-19 Mandates On Student Engagement And Management Of Collegiate Equestrian Teams, Travis Fortune

Murray State Theses and Dissertations

Events like a global pandemic can negatively impact how organizations and groups function. From a collegiate perspective, this could include limiting or eliminating participation in co-curricular activities that have positive impacts on student experiences. Students use these events to make new friends, socialize and generate a sense of belonging, and gain interactions outside the classroom. In March 2020, a number of mandated restrictions were put into place in the United States in response to COVID-19, and collegiate equestrian teams' ability to practice and show were negatively impacted. Even though some restrictions were beginning to ease as of Fall 2021, many …

Effects Of Cannabinoid Supplementation On Weaning And Transportation Stress In Beef Calves, Savannah Kaitlyn Austin

Murray State Theses and Dissertations

Transportation stress is a major factor increasing the risk of bovine respiratory disease (BRD) in young calves. Bovine respiratory disease is currently the most economically important disease affecting the cattle industry, costing producers millions of dollars annually. Cannabidiol (CBD) has shown therapeutic benefits in other species, making it a potential tool to use as a supplement to reduce transportation and weaning stress in calves. However, little information is available on cannabinoid bioavailability and disposition of bioactive residue in livestock tissues. The objectives of these studies were to evaluate effective dosage rates of a cannabinoid gel on beef cattle and to …

Bottom-Up Effects Of Degradation Outweighs Stabilizing Potential Of Omnivores, Hannah Marie Moore

Murray State Theses and Dissertations

Anthropogenic activities have led to degradation in streams throughout much of Western North America. In particular, cattle grazing has led to a loss of riparian vegetation resulting in higher water temperatures and an increase in nutrient runoff. The effects of degradation on food quality and quantity for aquatic consumers could have large implications for stream communities. Since omnivores feed at multiple trophic levels, they may be resilient to altered food webs, which may allow them to stabilize communities in degraded environments where resources have been reduced. To test the hypothesis that omnivores positively impact community stability in degraded conditions, I …

Return Of Floodplain Connectivity And Concurrent Macroinvertebrate Community Response Following Wetland Restoration In Western Kentucky, Christiane M. Soldo Ms.

Murray State Theses and Dissertations

Wetlands improve the quality of our nation’s streams, rivers, and lakes, and they support a diverse assemblage of plant and animal species. The U.S. Department of Agriculture Natural Resources Conservation Service (USDA-NRCS) is responsible for administering the Wetland Reserve Program (WRP), a multi-billion-dollar effort to restore wetlands throughout the nation. Each year, WRP enrolls thousands of acres of private farmland into conservation easements with the goal of improving water quality and creating wildlife habitat. Hydrological modification structures, such as levee breaks, ditch plugs, or shallow water areas are constructed on easements to create wetlands by improving water retention and returning …

Fish Communities Respond To Hydrology And Elevation In Restored Western Kentucky Wetlands, Lucas Zuklic

Murray State Theses and Dissertations

The Wetlands Reserve Program (WRP) is designed to restore wetland ecological function and wildlife benefits; however, these projects rarely monitor biological responses. The objectives of our study were to (1) identify environmental factors that were the most important in determining wetland fish community composition, (2) examine the influence of the environment on specific groups of fish (large-river fishes and Kentucky Species of Greatest Conservation Need (KY-SGCN) wetland fishes), and (3) compare fish community composition and diversity in wetlands of different condition (e.g., degraded, restored, and reference). From April 2019 to August 2020, monthly electrofishing surveys were performed in degraded …