Digital Commons Network^™

Impact Of Physicochemical Characteristics And Distillation Parameters On The Biomethane Potential Of Bourbon Stillage, Danielle Hockensmith

Theses and Dissertations--Biosystems and Agricultural Engineering

Bourbon, or whiskey, production in Kentucky has been estimated to double within the next five years and an increase in the main by-product from bourbon distillation, stillage. Stillage is composed mostly of water along with the fermented grains after distillation. Stillage is expensive to dispose of and difficult to store due to the high biodegradability, posing a risk to the environment given the low pH and high chemical oxygen demand (COD). Anaerobic digestion has been identified as a potential solution for stillage valorization, but little research has been performed. Stillage from different mash bills has varying physicochemical properties, total solids …

Fate And Transport Of Emerging Contaminants Entering, Leaving, And Flowing Past Wastewater Treatment Plants In Central Kentucky, Kyra Sigler

Theses and Dissertations--Biosystems and Agricultural Engineering

Per- and polyfluoroalkyl substances (PFAS) and neonicotinoid insecticides are two classes of emerging contaminants that have been recently detected in many environmental compartments. Both have been associated with negative impacts on humans and the environment. Wastewater treatment plants (WWTPs) have been identified as likely hotspots for introduction of these contaminants into the environment. Thus, the aim of this study was to investigate the occurrence of PFAS and neonicotinoids in two WWTPs in Central Kentucky. Polar organic chemical integrative samplers (POCIS) were deployed in WWTP influent and effluent and placed upstream and downstream of the effluent mixing zone (EMZ) for two …

Microalgae Immobilization With Filamentous Fungi: Process Development For Sustainable Food Systems, Suvro Talukdar

Theses and Dissertations--Biosystems and Agricultural Engineering

Demand for sustainable food sources has increased because of the rapid growth of the world's population.  In this study, microalgae cells of Haematococcus pluvialis were immobilized using the edible fungal strain Aspergillus awamori for potential food applications. The study investigated the impact of fungal loading, pellet geometry, and initial microalgae cell concentration on the immobilization performance and product characteristics. It was found that higher fungal loading and larger fungal pellets contributed to increased immobilization performance while increased initial microalgae concentration inhibited the process. Larger fungal pellets had decreased biomass density, which led to decreased surface concentration of immobilized microalgae but …

Fate And Transport Of Nanopesticides In Agricultural Field Plots In Central Kentucky, William D. Rud

Theses and Dissertations--Biosystems and Agricultural Engineering

Due to a growing world population, pesticide applications are necessary part to increasing agricultural production on the same arable land, but this has created environmental contamination, human toxicity, and endangerment to non-target species (i.e, honeybees, monarch butterflies) from bulk pesticide application. Nanoengineered particles or ENP are a potential solution with increased efficiency, longer duration, and enhanced stability of pesticides due to their unique formulations at smaller sizes. However, the potential long-term impact to agroecosystems is still unknown. Therefore, the goal of this project was to evaluate the fate, transport, impact, and persistence of two commercially available nanopesticides (copper hydroxide and …

Applying Hermetic Storage And Multiple Abiotic-Stressed Germinations To Actuate Desirable Effects In Wheat Phytochemistry, Food, And Biological Functionalities, Bababode Kehinde

Theses and Dissertations--Biosystems and Agricultural Engineering

Wheat is one of the most widely consumed staple foods in the world, supplying both nutritional and caloric requirements for billions of people. The rising global population and increased food demand behooves all stakeholders across the wheat supply chain to significantly increase their output and efficiency. Beyond the target for increased farm yields, dietary, nutritional, and health requirements along with their continuous supply must be satisfied with improved storage and processing schemes. Post-harvest changes in wheat can result in a significant reduction in its quality. Such losses could be qualitative and/or quantitative, impacting its physical, physiological, organoleptic, and nutritional attributes. …

Managing Death In Termites, Jizhe Shi

Theses and Dissertations--Entomology

Death of individuals from the same species represents potential risks from disease, predation or competition for animals. Diverse responses associated with death have evolved ranging from simply avoiding or being attracted to the corpses in solitary animals to complicated undertaking behavioral repertoire in eusocial insects. A systematic review in chapter 1 suggested cannibalism is an ancestral and widespread death-related behavior in all non-human animals. Termites are suggested to switch their undertaking behavioral responses from cannibalism to burial based on interactions between chemicals associated with death to balance risks and benefits associated with decomposition. In eusocial animals like termites with caste …

Surveillance For Ticks And Tick-Borne Pathogens In Kentucky, Anna Rosalee Pasternak

Theses and Dissertations--Entomology

Tick-borne diseases are an emerging threat to human and animal health. In Kentucky, tick-borne disease surveillance has identified rising incidences of spotted fever rickettsiosis, ehrlichiosis, and Lyme disease. Since these diseases occur through the bites of infected ticks, effective prevention efforts are reliant upon knowing where the risk of exposure to tick bites exists. Historical data on tick distribution in Kentucky is variable, with very little reported on a statewide scale, leaving vector control workers, public health personnel, physicians, veterinarians, and others to rely on outdated, intermittent, or out-of-state information. In my dissertation, I surveyed ticks and select tick-borne pathogens …

Landscape Influences And Preventive Management For Drosophila Suzukii In Small Fruit Crops, Ryan William Kuesel

Theses and Dissertations--Entomology

Small fruit production has been greatly challenged by the repeated invasion of non-native arthropod pests, impacting economic feasibility, and increasing the need for insecticides. Spotted wing drosophila (Drosophila suzukii (Matsumura)) is the most recent invasive pest of small fruits. It causes damage by ovipositing beneath the skin of ripening fruits. Its wide-spread distribution and development of resistance to insecticides has resulted in the need for improved alternative management strategies for small fruit growers.

My surveys of D. suzukii at thirteen blackberry (Rubus fruticosus L.) and raspberry (Rubus idaeus L.) fields found that while D. suzukii was present …

Ecological Risk Assessment Of Transgenic Conditional Lethality Systems For Genetic Biocontrol Strategies, Fernan Rodrigo Perez-Galvez

Theses and Dissertations--Entomology

Genetic strategies of insect pest control are receiving increased interest due to recent advances in genetic engineering. By introducing alleles that make males functionally sterile, genetically modified (GM) insects can be used in area-wide pest management programs similar to the Sterile Insect Technique (SIT). Genetic control strategies carry several potential benefits, including improved efficacy and specificity, lower operation costs, and reduced dependence on chemical insecticides, but their use is still controversial despite extensive technical documentation indicating their innocuity to humans and the environment. This hesitation is likely due to the novel nature of the approach.

While the first field applications …

Gun Violence: Is Mental Illness Really The Issue?, Rachel T. Dillon

Soaring: A Journal of Undergraduate Research

As the cases of gun violence are continuously increasing in America, so are the number of assumptions that the incident was caused by a mental illness. Whenever there is a mass shooting, the media is quick to diagnose the shooter with a mental illness, without having the credentials to do so. Previous research has found that stories of mass shootings and incidents of gun violence increase negative attitudes towards people with a serious mental illness (SMI), and an increase in support for gun restrictions for this specific population. This paper uses past research on gun violence beliefs to help answer …

The Last Martian: Postcolonial Metaphors Of The New Frontier, Mia Lindenburg

Soaring: A Journal of Undergraduate Research

This paper is a reading of Ray Bradbury’s The Martian Chronicles as a commentary on American identity. Published exactly in the middle of the 20^th century, the anthology of short stories provides a unique perspective due to its placement in the journey of American expansion. At Bradbury’s time, not only were Americans seeking to expand out into the New Frontier of space, but criticism of the original frontier was severely lacking. Scholars such as John L. O’Sullivan and Frederick Jackson Turner had made their mark on the American subconscious by arguing that expansion was necessary to form an American …

The Inventory Of Cognitive Distortions-Youth Version: The Development And Validation Of A Psychometric Test For The Measurement Of Cognitive Distortions In Youth, Kelsey Jones

PCOM Psychology Dissertations

Cognitive distortions are systematic biases in an individual’s thinking that maintain a person’s belief in their negative views of themselves or others, even in the presence of contradictory evidence. The Inventory of Cognitive Distortions (ICD), created by Yurica and DiTomasso, measures distorted thinking in adults. Currently, there is not a youth measure of distortions that adequately encapsulates the range of distorted thinking that may be present in youth. Therefore, the purpose of the current study was to create and validate a newly designed instrument of cognitive distortions, The Inventory of Cognitive Distortions-Youth Version (ICD-YV), with youth ages 11 to 17. …

Mitigating Compounded Barriers To Independence: Improving Outcomes Post Emancipation For Foster Youth With Secondary And Tertiary Barriers To Success, Corletha Norman

DSW Capstone Projects

A total of 407,493 children were identified as foster children by the U.S. Department of Health and Human Services, Administration for Children and Families (2021) at the completion of their 2020 fiscal year. The reason for entry into foster care is just as varied as the way in which the children exit. It is expected that many foster youth will experience poor outcomes as a result of their foster care experiences. Poor outcomes continue to be an ever-present undesired rite of passage for foster youth preparing to leave foster care at or after the age of 18. Research conducted over …

Reformation Of Will Statutes And The Legality Of Ewills, Kareem A. Elsheryie

Student Works

No abstract provided.

Mental Health Parity Laws And Suicidality: Coverage, Cost, And The Catch-22 Of Having To Prove That A Disparity Exists, To Prove That A Disparity Exists, Sylvia Lee

Student Works

No abstract provided.

Solving The Multi-National Patent Dispute Problem, Daniel Weiss

Student Works

No abstract provided.

When Private Industry Meets Public Policy: Navigating The Complexities Of State And Federal Regulation Within The Troubled Teen Industry, Christian Brancato

Student Works

No abstract provided.

Talk Is Actually Cheap: Implementing An Administrative Agency To Set Pricing Caps And Negotiate For Improved Pharmaceutical Pricing In The United States, Nicole Dlug

Student Works

No abstract provided.

What Teaching Brown Teaches Us, David Dabreau

Student Works

No abstract provided.

A Professional Approach To Mental Health: Expanding The Professional Judgment Standard To Constitutional Claims Brought By Justice-Involved Youth, Alexandra Marek

Student Works

No abstract provided.

Pre-Health Majors And Career Paths At Ud, Udayton

Pre-Health Resource Center Campus Communications

An overview of pre-health majors and career paths offered at University of Dayton.

Pacifism And The Science Of War: Jane Addams And Bertrand Russell On World War I, Marilyn Fischer

Philosophy Faculty Publications

In July 1915, after hearing Jane Addams speak in London on her efforts for peace during wartime, Bertrand Russell wrote to an American friend, “You can gather what I think and feel by talking to Miss Addams. She seemed to me to have exactly the same outlook as I have.” In this paper I compare how Russell and Addams used the era’s scientific theories in formulating their pacifism. After recounting Addams’s and Russell’s experiences during the war, I show how Addams and Russell accounted for civilization’s “descent into barbarism” in parallel ways. I then contrast their conceptions of what counts …

The Effect Of Different Warm-Up Durations On Subjective And Objective Measures Of Singing In Choral Singers Over The Age Of 55, Jeremy A. Chesman

Graduate Theses/Dissertations

Choral singing is a popular activity in the United States. Choral singers are often encouraged to warm up vocally before they sing. Considering voice conditions, like presbyphonia, that can develop shortly after retirement, more research about vocal warm-ups is needed for those over the age of 55. This study assesses the effects of various durations of vocal warm-ups on subjective and objective measures of the singing voice using a within-groups design with randomized condition order. Nine participants performed vocal warm-ups for 0, 5, 10, and 15 minutes. A song sample was then recorded and sent to two expert raters who …

Peer Influence On Mental And Physical Health Symptoms: A Network Autocorrelation Model, Ashley N. Hall

Graduate Theses/Dissertations

Adolescent youth are similar to their friends in both personal attributes, such as gender and ethnicity, and exhibited behaviors. However, limited research has analyzed the role of peer influence on physical and mental health symptoms. The current study aimed to address this gap in the literature by investigating the association between friendships and individual health symptoms. A linear network autocorrelation model was used to examine the relation between adolescent friendships, physical health, and mental health symptoms in a sample of 336 seventh grade students from a Midwestern, public middle school. Results from the current study indicate a peer influence effect …

Structural Engineering Of Thermostable Fluorescent Proteins Tgp-E And Ytp-E And Crystal Structure Of Tgp-E, Matthew Ryan Anderson

Graduate Theses/Dissertations

Thermostable fluorescent proteins, such as thermal green protein (TGP) and yellow thermal protein (YTP), could be used as biosensors to monitor cellular activity and as a fusion tag to monitor a protein of interest. The use of fluorescent proteins can sometimes be limited in certain organelles with low pH and in thermophilic organisms. This research aims to improve the thermal stability of TGP and YTP. TGP was created from a synthetically derived eCGP123 protein to improve solubility by substituting residues on the positively charged b- barrel surface with negatively charged glutamate (E) at Los Alamos National Lab. YTP was developed …

Examining The Immune Regulation Of Nlrp12 Through Novel Protein Interactions, Catherine Rippe

Graduate Theses/Dissertations

NOD-like receptors (NLRs) are intracellular proteins that play an important role in the regulation of the innate immune response to pathogens. Since being identified, various functions for NOD-like receptor pyrin domain containing 12 (NLRP12) have been suggested. It has been shown to negatively regulate the inflammatory response through canonical and noncanonical NF-kB signaling pathways, control tumorigenesis and gut homeostasis and exacerbate inflammation through the formation of a multi-protein complex called an inflammasome. Due to the varying roles established for NLRP12, the mechanisms by which it functions remain poorly understood. In this study, I sought to confirm a novel protein-protein interaction …

Propagation, Physiology And Biomass Of Giant Cane (Arundinaria Gigantea) For Conservation And Restoration, Sanjeev Sharm

Graduate Theses/Dissertations

Giant cane (Arundinaria gigantea) is a native species to 22 states in the U.S. The species and its ecosystem are considered critically endangered, and the species has been reduced to 2% of its original extent. The species has a long cultural and conservation history. Large canebrakes were commonly found in Missouri in bottomland forests, stream and riverbanks, and margins of lakes. My research goals were to: 1) examine methods for propagation success from field to greenhouse to field; 2) examine the physiology of cane at one of the few current canebrakes, for greenhouse propagated plants, and field planted …

Effect Of Soil Ph And Indigenous Bacterial Populations In Selecting Rhizobial Endophytes Within Soybean Root Nodules, Brianne Danielle Edwards

Graduate Theses/Dissertations

Soybean plants fulfill most of their nitrogen requirement by developing symbiotic associations with four different rhizobial genera, including Bradyrhizobium, Sinorhizobium, Mesorhizobium, and genus Rhizobium. In general, members of Bradyrhizobium and Sinorhizobium have been reported as dominant root nodule endophytes under acidic soils and alkaline soil conditions, respectively. So far, it is unknown whether the selection of rhizobial endophytes is regulated by their ability to survive under different soil pH or driven by host plants regardless of their relative abundance in soil. This study was focused on the assessment of the potential role of soil pH in …

Supporting Lgbtqia2s+ College Students: Psychological Flexibility And Promoting Verbal Behavior Of Support And Inclusion, Breanna Ashtyn Lee

Graduate Theses/Dissertations

The current thesis includes two studies that account for aspects of LGBTQIA2S+ experiences. The first study explored verbal behavior involved in stereotyping. Relational Density Theory (RDT; Belisle & Dixon, 2020) offers a model for conceptualizing relational strength of environmental stimuli, such as those contributing to stereotypes based on sexuality. Participants in the present study completed a multidimensional scaling procedure using an RDT framework by rating the degree of relatedness between stimulus pairings. Stimuli included a series of sexualities (e.g., gay man), as well as adjectives (e.g., masculine). A brief Acceptance and Commitment Therapy (ACT; Hayes, 2004) based defusion exercise was …

Defect State Study And Surface Patching In Zno Nanoparticles Via Nano- Bio Interaction With Dna Bases, Ummay Honey

Graduate Theses/Dissertations

First, this thesis investigates the structural and optical properties of hydrothermally synthesized ZnO nanostructures, focusing on the effects of varying annealing temperatures on their properties. Structural characterizations using micro-Raman spectroscopy, X-ray diffraction (XRD), and morphological study called scanning electronic microscopy (SEM) show changes in crystallinity and intensity with different annealing temperatures. Optoelectronic characterization using photoluminescence spectroscopy reveals changes in luminescence properties near the ultraviolet region with temperature variation and in the visible emission area region. These results provide insights into how annealing temperature can affect the surface layer of ZnO nanostructures and can be applied to improve performance in electronic …