541 Works

Topographic Gradients in Bulk Soil Properties in Central Kentucky Karst Sinkholes

Anne McGraw
The Bluegrass physiographic region of Kentucky is underlain by the late Ordovician Lexington Limestone formation. This area has many identifiable karst features, including sinkholes. Karst sinkholes and associated soils coevolve, which may influence the distribution of bulk soil properties and storage of carbon across karst landscapes. Two sinkholes on the University of Kentucky’s C. Oran Little Animal Research Center in Woodford County, central Kentucky, were selected for analysis. We described and sampled nine pedons at...

Modeling Thin Layers in Material Response Solvers

Christen Setters
Thermal Protection Systems (TPS) are a necessary component for atmospheric entry. Most TPS contain thin layers of various materials such as ceramic coatings, pore sealers and bonding agents. When modeling TPS, these thin layers are often neglected due to the difference in scale between the TPS (centimeters) and the thin layers (micrometers). In this study, a volume-averaging flux-conservation method is implemented in the governing equations of a finite volume material response code. The model proposes...

WHITENESS AND MULTICULUTRAL COMPETENCE

Blanka Angyal
The current phenomenological study aimed to explore how counseling psychology faculty’s understanding of whiteness informs their definition of multicultural competence and practice of psychology. The study presents a conceptual model for researching multicultural competence informed by critical race (Delgado & Stefancic, 2001), feminist standpoint (Smith, 1987, 1997), and intersectional (Collins, 1986; Chrenshaw, 1989) paradigms. Twelve counseling psychology faculty (N=12) teaching in APA-accredited programs were nominated by graduate trainees who deemed them multiculturally competent. Participants’ understanding...

WHEAT DISEASE MANAGEMENT WITH FUNGICIDES

Nathaniel Heubeck White
Disease management in winter wheat can be improved by a properly implemented foliar fungicide program. The fungicide, application time, and application system should be selected based on the host, pathogens present, risk of fungicide resistance, and time of disease onset. These factors vary among environments and require region-specific research to determine appropriate practices. Trials were conducted to evaluate different aspects of fungicide applications for managing Fusarium head blight (FHB), caused by Fusarium graminearum, and the...

Proctoring and Apps in College Algebra

Cynthia M. Shelton
The pandemic forced more instructors and students to move to online learning. For the first time, many experienced a loosening of the reigns and were forced to allow students to submit non-proctored work. Many may have questioned what students really learned in the year 2020. Many college math course competencies emphasize procedures. Now that apps can do that for students, where does that leave math instructors? Additionally, online instruction has exploded over the last decade...

Machine Learning Approach for Vigilance State Classification in Mice

Anik Muhury
Sleep has a significant impact on cognitive abilities such as memory, reaction time, productivity, and creative thinking; however, there are many aspects of this important activity that are not clearly understood. Over the last century, researchers have developed technology and animal models to assist in the study of sleep. Manual sleep scoring is time consuming, reduces productivity, and is impacted by human scorer subjectivity. On the other hand, automatic sleep stage categorization can enhance consistency...

Delineating the Biosynthesis of Capuramycin-type Antibiotics

Ashley Biecker
New antibiotic scaffolds with novel drug targets are needed to combat the rise of drug-resistant, infectious microorganisms. The bacterial translocase I is a ubiquitous enzyme in the peptidoglycan biosynthetic pathway that has yet to be targeted by clinically used antibiotics. It catalyzes the transfer of N-acetylmuramoyl-pentapeptide to undecaprenylphosphate in order to generate lipid I during cell wall biosynthesis. A screening of bacterial translocase I inhibitors led to the discovery of the novel compound capuramycin and...

Effects of Season and Nutrition on Insulinemic Responses in Insulin Dysregulated Horses

Erica Macon
Insulin dysregulation (ID) is the main risk factor for the development of hyperinsulinemia-associated laminitis (HAL). ID in the equid has been extensively researched; however, recommendations for diagnosing and managing ID horses have originated from work completed in other models, such as the ID pony and healthy horse. Therefore, our overall objective was to improve current diagnostic tools and nutritional management strategies by investigating the effect of season, the fed and fasted state on the oral...

GLOBAL COMPETENCE AND DEEPER LEARNING

L. Amanda Siebert
Education has become increasingly global in recent years. Student and teacher global competence have been studied at length. School administrators’ application of global competencies in their administrative practice has not been explored until recently. Secondary school administrators’ global competencies were investigated under seven tenets. The aim of this study was to examine how secondary principals in one Intermountain school district perceived and implemented global competencies in their current professional practice. Further, this study explored how...

Communication Strategies to Intervene in Intimate Partner Violence Among Young Adult Couples

Kaylee Lukacena
Intimate partner violence (IPV) is a social and behavioral health issue of importance among the young adult population (Cupp et al., 2015). IPV includes acts of physical violence, sexual violence, psychological aggression, and stalking enacted by an intimate partner (Smith, Zhang, Basile, Merrick, Wang, Kresnow, & Chen, 2018). In the United States., approximately one in three women and one in ten men experience IPV during their lifetime (Smith et al., 2018). Furthermore, over more than...

ADMINISTRATORS BUILDING SOCIAL CAPITAL TO FOSTER INFORMAL TEACHER LEADERSHIP IN TYPE C INTERNATIONAL SCHOOLS IN VIETNAM

Robert Preston Williams
The goal of this study was to explore how administrators build social capital among expatriate teachers to foster informal teacher leadership in type C international schools. The researcher employed a single-site case study in an international school in Vietnam. A theoretical framework based on Bourdieu’s (1986) social capital theory was used to design the research instruments and analyze the data. In phase one, the researcher collected survey data with the participants being the teaching staff...

Assessing the Impact of Teacher Self-Efficacy on Teacher Led Physical Activity

Donovan Ross

PRODUCTIVITY AND EFFICIENCY DIFFERENCE AMONG KENTUCKY GRAIN FARMS

Ahmed Hussein
This paper attempts to estimate productivity and efficiency for Kentucky grain farms by applying a two-stage Date Envelopment Analysis (DEA) and DEA-based Malmquist method. The study covers the years 1999-2015. Also, productivity and efficiency testing hypotheses among different farm sizes and years are estimated. In the first step, productivity and efficiency indices are estimated through deterministic DEA. In the second stage, a panel regression is run with exogenous variables to explain the productivity and efficiency...

Factors Associated with Lifestyle Modification for Type 2 Diabetes Self-Management and Prevention

Leigh Koonmen
Diabetes is the seventh leading cause of death in the United States, affecting roughly 13% of U.S. adults aged 18 years or older. Type 2 diabetes accounts for 90-95% of all diabetes cases and is characterized by the progressive development of insulin resistance leading to sustained elevated blood glucose levels. Management of type 2 diabetes includes risk-reduction strategies and continuous medical care to prevent the development of complications. Lifestyle is a major contributing factor to...

LOCALIZATION OF STATIONARY SOURCE OF FLOOR VIBRATION USING THE STEERED RESPONSE POWER METHOD

Mohammad Royvaran
If the generated vibration in a building exceeds the acceptable limit design for a floor system, it is necessary to identify the source of vibration, a process known as localization. The objective of this study is the localization of stationary vibration sources, and the approach used is the steered response power (SRP) method. This method has already been shown to work well for wireless and acoustical applications to locate transmitter and sound sources, respectively. To...

Genetic Mouse Models of Liver Disease

Courtney Turpin
The liver is the largest internal organ in mammals and responsible for carrying out various processes, including lipid and carbohydrate metabolism, detoxification of chemicals, and production of serum proteins. Liver damage, which can be caused by a variety of agents including viral infection, environmental toxins, alcohol and excessive dietary fats, can cause dysregulation of these critical functions, leading to worsening liver pathophysiology and impacting health. However, the liver has the remarkable ability to regenerate when...

Investigation of Multidrug Efflux Transporter AcrB in Escherichia coli

Prasangi Rajapaksha
The Resistant Nodulation Division (RND) super family member, tripartite AcrA-AcrB-TolC efflux pump, is a major contributor in conferring multidrug-resistance in Escherichia coli. The structure of the pump complex, and drug translocation by functional rotation mechanism have been widely studied. Despite of all these data, the dynamics of the assembly process of the pump and AcrB during functional rotation in the process of drug efflux remains poorly understood. My thesis focuses on understanding the pump assembly...

THE USE OF MECHANOTHERAPY TO PROMOTE THE RECOVERY FROM DISUSE ATROPHY IN AGING RAT SKELETAL MUSCLE

Zachary Hettinger
The combination of age and disuse-related skeletal muscle atrophy predisposes older adults to reduced mobility, loss of independence, and poor quality of life. Poor health outcomes resulting from periods of disuse in older adults are exacerbated by an inability to fully recover, ultimately accelerating geriatric populations towards further functional decline. Aged-related changes to skeletal muscle viscoelastic properties, specifically of muscle extracellular matrix (ECM) stiffness, may not only impact how muscle responds during recovery, but also...

CARNOSIC A CARNOSIC ACID DIFFEREN CID DIFFERENTIALLY MODUL Y MODULATES THE NRF2- TES THE NRF2- ANTIOXIDANT RESPONSE IN M T RESPONSE IN MALE AND FEM ALE AND FEMALE MICE ALE MICE FOLLOWING EXPERIMEN OWING EXPERIMENTAL TRAUMATIC BRAIN INJUR TIC BRAIN INJURY

Jacob Dunkerson
Traumatic brain injury (TBI) is a leading cause of death and disability in the United States. Each year, an estimated 2.8 million Americans are diagnosed with a TBI due to falling, motor vehicle collisions, gun violence, and sports related concussions. Although inflicted by a single event, the post-traumatic effects of TBI often develop into a life-long disease. Survivors often experience cognitive decline, memory loss, emotional instability, changes in personality, and physical disabilities. A single TBI,...

Multiscale Finite Element Modeling of Active Contraction in Striated Muscle

Charles Mann
Greater than one in three American adults have at least one type of cardiovascular disease, a major cause of morbidity. Computational cardiac mechanics has become an important part of the research effort to understand the heart’s response to mechanical stimuli and as an extension, disease progression and potential therapies. To this end, the present work aims to extend these efforts by implementing a cell level contractile model in which active stress generation in muscle tissue...

Data for: PickMe: sample selection for species tree reconstruction using coalescent weighted quartets

Joseph Rusinko, Yu Cai, Allison Doherty, Katherine Thompson, Julien Boutte, Mark Fishbein & Shannon Straub
After collecting large data sets of many genes for many species for phylogenomics studies, researchers may make ad hoc decisions about which genes or samples to include in a species tree reconstruction analysis based on various parameters, including the amount of missing data. Optimally, sampling would be maximized, but it can be difficult for empiricists to determine where to draw the line for sample inclusion when data sets are incomplete. Under the multispecies coalescent model,...

ASSESSING THE USE OF LIDAR AND UAV TECHNOLOGY FOR MONITORING GROWING ALFALFA

Tucker Sheffield
Alfalfa is a popularly grown crop because of its value as a nutritious feed source for livestock. The efficient production of an alfalfa crop relies on the monitoring of certain parameters, like height, quality, and yield. Traditionally, producers have used manual measurements of alfalfa plant height to estimate the nutritive quality and yield of a growing alfalfa crop. Manual measurements of plant height are often labor intensive and provide low resolution data that is not...

Visceral organ growth in pigs from birth through 150 kg bodyweight

Merlin Lindemann
Visceral organs (VO) are essential for their role in the metabolism and distribution of consumed nutrients as well as other life functions in animals. Two experiments were conducted to assess the natural longitudinal changes that the VO undergo from birth through 150 kg body weight (BW). Results showed that both absolute and relative measurements (weight, volume, and length) of VO were dependent on the BW (age) of the pig.

The impact of life stage and pigment source on the evolution of novel warning signal traits

Carita Lindstedt, Robin Bagley, Sarah Calhim, Mackenzie Jones & Catherine Linnen
Our understanding of how novel warning color traits evolve in natural populations is largely based on studies of reproductive stages and organisms with endogenously produced pigmentation. In these systems, genetic drift is often required for novel alleles to overcome strong purifying selection stemming from frequency-dependent predation and positive assortative mating. Here, we integrate data from field surveys, predation experiments, population genomics, and phenotypic correlations to explain the origin and maintenance of geographic variation in a...

LEVERAGING TRANSCRIPTOMIC APPROACHES TO IDENTIFY DIFFERENCES IN GENETIC PROGRAMMING DRIVING TWO DISTINCT WOUND HEALING MECHANISMS, REGENERATION AND FIBROSIS, IN ACOMYS AND MUS

Shishir Biswas
Why can some animals and others cannot? This fundamental question has fueled scientists studying regeneration for hundreds of years since early observations in crayfish, salamanders and many other organisms. While most contemporary work in regeneration is done in a handful of species including salamanders, zebrafish and flatforms, these organisms lack a closely-related, non-regenerating sister species from which unique genetic differences can be identified. Additionally, while much has been learned from these organisms, they do not...

Registration Year

  • 2021
    541

Resource Types

  • Dissertation
    295
  • Text
    190
  • Dataset
    24
  • Report
    22
  • Journal Article
    5
  • Data Paper
    3
  • Book
    1
  • Conference Proceeding
    1

Affiliations

  • University of Kentucky
    541
  • Zhejiang University
    3
  • Indiana University
    3
  • Sun Yat-sen University
    2
  • Institute of Hydrobiology
    2
  • Lanzhou Veterinary Research Institute
    2
  • Charles Sturt University
    2
  • Huaian First People’s Hospital
    2
  • Shanghai University of Traditional Chinese Medicine
    2
  • Guangzhou Medical University
    2