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Articles 1021 - 1050 of 17381
Full-Text Articles in Entire DC Network
Evaluation Of Diet Quality, Physical Health, And Mental Health Baseline Data From A Wellness Intervention For Individuals Living In Transitional Housing, Callie Millward, Kyle Lyman, Soonwye Lucero, James D. Lecheminant, Cindy Jenkins, Kristi Strongo, Gregory Snow, Heidi Leblanc, Lea Palmer, Rickelle Richards
Evaluation Of Diet Quality, Physical Health, And Mental Health Baseline Data From A Wellness Intervention For Individuals Living In Transitional Housing, Callie Millward, Kyle Lyman, Soonwye Lucero, James D. Lecheminant, Cindy Jenkins, Kristi Strongo, Gregory Snow, Heidi Leblanc, Lea Palmer, Rickelle Richards
All Current Publications
Background/Objectives: The aim of this study was to evaluate baseline health measurements among transitional housing residents (n = 29) participating in an 8-week pilot wellness intervention. Methods: Researchers measured anthropometrics, body composition, muscular strength, cardiovascular indicators, physical activity, diet quality, and health-related perceptions. Researchers analyzed data using descriptive statistics and conventional content analysis. Results: Most participants were male, White, and food insecure. Mean BMI (31.8 ± 8.6 kg/m2 ), waist-to-hip ratio (1.0 ± 0.1 males, 0.9 ± 0.1 females), body fat percentage (25.8 ± 6.1% males, 40.5 ± 9.4% females), blood pressure (131.8 ± 17.9/85.2 ± 13.3 mmHg), and …
Sex, Stress And Hormones : The Role Of Modifiable Risk Factors In The Kinetics Of Alzheimer’S Disease, Hannah Marie Edwards
Sex, Stress And Hormones : The Role Of Modifiable Risk Factors In The Kinetics Of Alzheimer’S Disease, Hannah Marie Edwards
Arts & Sciences Graduate Student Theses and Dissertations
Alzheimer’s Disease (AD) is a neurodegenerative disease hallmarked by the presence of amyloid- plaques and tau tangles in the brain. The process of the disease begins decades prior to the onset of symptoms and is thought to be driven first by a buildup of amyloid- peptide in the extracellular space, triggering a cascade of pathology and symptomology culminating in loss of cerebral volume and cognitive impairment. Women are diagnosed with AD at a rate 2/3 higher than their male counterparts, even when controlling for age. While most driving factors of the disease are thought to be genetic, roughly 40% of …
Demographic Characteristics And Selected Personality Traits Of Women In Competitive Bodybuilding, Chloe A. Zeeuw
Demographic Characteristics And Selected Personality Traits Of Women In Competitive Bodybuilding, Chloe A. Zeeuw
Master's Theses
This study investigated demographic characteristics and measures of personality (dimensions of performance perfectionism and five-factor model characteristics) in women in competitive bodybuilding between 18-25 years old. A total of 24 women completed an online survey which included a demographic questionnaire, the Five Factor Model Rating Form (FFMRF), and the Performance Perfectionism Scale for Sport (PPSS) inventories. Descriptive results for the FFMRF were Openness (18.17±3.12), Conscientiousness (25.58±3.33), Extraversion (19.96±3.46), Agreeableness (19.88±4.58), and Neuroticism (15.67±4.94), and for the PPS-S were Self-oriented performance perfectionism (20.96±3.53), Socially prescribed performance perfectionism (13.96±4.26), and Other-oriented performance perfectionism (10.54±4.23). Pearson’s correlation coefficients and Shapiro-Wilk tests revealed that …
Assessment Of Social Media Use And Strategies For Combating Misinformation Among Extension Educators In Arkansas, Enoch Teye Kwao Ametepey
Assessment Of Social Media Use And Strategies For Combating Misinformation Among Extension Educators In Arkansas, Enoch Teye Kwao Ametepey
Graduate Theses and Dissertations
This study assessed the use of social media by Extension educators in Arkansas and examines strategies for identifying and combating misinformation within agricultural extension services. Guided by the Uses and Gratifications Theory, the Unified Theory of Acceptance and Use of Technology (UTAUT), and the Third-Person Effect Theory for objectives one, two, and three, this research employed quantitative and qualitative approaches, specifically, two quantitative cross-sectional surveys and a qualitative focus group study developed into a three article dissertation. The first article assessed the extent to which Extension educators utilize social media for professional activities, revealing that social media is predominantly used …
Immune Modulation Affects Olfactory Glomerular Recovery In Zebrafish, Bonnie E. Ebendick
Immune Modulation Affects Olfactory Glomerular Recovery In Zebrafish, Bonnie E. Ebendick
Dissertations
Adult zebrafish regenerate neurons throughout their lifetime and exhibit rapid recovery from neuronal damage with support from their immune system, making them an excellent model for studying neuroinflammation and brain repair mechanisms. When olfactory sensory neurons are lesioned, their cell death stimulates the immune system by activating microglia and other immune cells in the olfactory bulb, initiating tissue repair and neuronal replacement. This dissertation investigates how the immune system influences recovery from neuronal damage, testing the hypothesis that immune perturbation in zebrafish alters neural recovery.
To investigate the link between immune function and neuronal regeneration, zebrafish received a unilateral lesion …
Ecosystem Services Of Urban Green Spaces In Louisville, Ky., Julia Kachanova
Ecosystem Services Of Urban Green Spaces In Louisville, Ky., Julia Kachanova
Electronic Theses and Dissertations
Accelerating urbanization poses critical challenges to urban green spaces (UGS), vital for ecological balance and human health. Rapid development often results in fragmented habitats, biodiversity loss, and diminished ecosystem service delivery. There is an urgent need to explore and evaluate novel strategies capable of enhancing urban resilience, such as implementing urban orchards, and managing existing parks and gardens in sustainable ways. This dissertation explores how different forms of urban green spaces (UGS) contribute to the provision and maintenance of critical ecosystem services that support human well-being and urban biodiversity. By analyzing UGS impact on ecosystem service provisioning and long-term sustainability, …
The Influence Of Psychological, Biological, And Social Determinants On Disordered Eating Behaviors Among U.S. Young Adults: Evidence From Nhanes 2015-2018., Samantha Kaye Gerbine
The Influence Of Psychological, Biological, And Social Determinants On Disordered Eating Behaviors Among U.S. Young Adults: Evidence From Nhanes 2015-2018., Samantha Kaye Gerbine
Electronic Theses and Dissertations
Disordered eating behaviors (DEBs) are influenced by biological, social, and psychological factors, yet research often narrowly focuses on White, college-aged women. This study assessed the predictors and prevalence of DEBs in a nationally representative sample of U.S. young adults using data from the 2015–2018 National Health and Nutrition Examination Survey (NHANES). Survey weights were applied to generate national estimates. Descriptive statistics characterized the sample, and logistic regressions tested biological, social, and psychological predictors of DEBs. A composite risk score was developed using variables retained in the final model. The unweighted sample (n = 1,062) represented 64 million U.S. young adults. …
Use Of Infrared Spectroscopy In Animal Studies: Aspects Of Health Science, Brian Manzanares
Use Of Infrared Spectroscopy In Animal Studies: Aspects Of Health Science, Brian Manzanares
Graduate Student Dissertations, Theses, Capstones, and Portfolios
Non-invasive imaging technologies, such as infrared thermography (IRT), near-infrared spectroscopy (NIRS), and fourier-transform infrared spectroscopy (FTIR) are revolutionizing the field of animal research by enabling real-time, stress-free assessment of physiological conditions. Such methods like these are align with the ethical standards of the 3Rs, replacement, reduction, and refinement-by reducing the need of invasive procedures while enhancing data quality and animal welfare. These methods can also provide critical insight into animal health, behavior, and stress responses without the need for invasive procedures or restraint, thereby minimizing harm and distress. This literature review will explore the practical applications of IRT, NIRS, and …
The Role Of Nicotine In Treating Neurodegenerative Diseases, Jacquelyn T. Deaton
The Role Of Nicotine In Treating Neurodegenerative Diseases, Jacquelyn T. Deaton
Graduate Student Dissertations, Theses, Capstones, and Portfolios
Neurodegenerative diseases have emerged as a critical medical challenge because they cause progressive neuronal death alongside structural or functional deterioration. Families, healthcare institutions, and affected individuals face significant challenges due to neurodegenerative diseases such as Alzheimer's, Parkinson's, and Huntington's diseases, which impair both cognitive function and motor abilities. Researchers have found that nicotine in tobacco products is a compound with therapeutic potential. This literature review explores how nicotine interacts with neurodegenerative mechanisms, such as oxidative stress and inflammation, and assesses its potential neuroprotective effects in conditions like Alzheimer's and Parkinson's diseases. In the central nervous system, nicotine binds to the …
The Effect Of An Invasive Species (Lantana Camara) And A Fast-Growing Herb (Acanthus Pubescens) On The Plant And Animal Communities In Kibale National Park, Uganda, Kathleen Bufka
Theses and Dissertations
Fast-growing plant species, like Lantana camara and Acanthus pubescens, could threaten biodiversity in Kibale National Park, Uganda. I surveyed plants and wildlife in areas where these plants were frequently encountered compared to those areas where they are infrequent. I found mixed results based on plant traits and the animals considered. My findings support management efforts on these two species to prevent forest degradation.
Electrophysiological Markers Of Emotion Dysregulation In Autistic Youth, Rachel G. Mcdonald
Electrophysiological Markers Of Emotion Dysregulation In Autistic Youth, Rachel G. Mcdonald
Theses, Dissertations and Culminating Projects
Emotion dysregulation (ED) is a transdiagnostic mechanism that is conceptualized as difficultly regulating emotions and deploying appropriate regulation strategies in response to environmental stimuli. Meta-analyses suggest that autistic people, across the lifespan, experience more severe ED as compared to both neurotypical people and those with mental health conditions. Despite elevated risk and evidence linking ED to disruptions in neural mechanisms, no studies to date have examined neural markers of ED in autistic populations. The current project uses multi-method and multi-informant measurement to examine similarities and differences in neural mechanisms of ED in autistic and non-autistic populations. Forty-four youth aged 11—17 …
A Pilot Study Exploring Vitamin D, Mental Health, And Gastrointestinal Health In Humans, Brianna C. Williams
A Pilot Study Exploring Vitamin D, Mental Health, And Gastrointestinal Health In Humans, Brianna C. Williams
Master's Theses
Mental disorders are experienced by nearly one billion people worldwide. Depression is one of the most common. Treatments exist, yet a devastating 75% of individuals suffering from depression do not receive adequate treatment. An emerging treatment strategy includes exploring the connection between mental health and nutrition, which includes the areas of gut health and nutrient deficiencies. Vitamin D is obtained through food, supplements, and sunlight. Many individuals are considered deficient (25[OH]D concentrations < 12 ng/mL) or insufficient (25[OH]D concentrations < 20 ng/mL). Purpose: This study aimed to explore mental and gastrointestinal (GI) health using surveys and lipopolysaccharide binding protein (LBP) concentrations, a biomarker of GI health, in individuals considered 25(OH)D deficient (DEF) vs not deficient (N-DEF). Methods: This cross-sectional study recruited physically active participants aged 18-45 years who underwent three evaluations in one visit. Health was assessed using surveys to evaluate mental health, GI symptoms, and vitamin D intake. Serum from fasting blood samples was used with an enzyme-linked immunosorbent assay to determine 25(OH)D and LBP concentrations. Unpaired t-tests were used to compare DEF vs N-DEF and significance was set at p < 0.05. Results: Thirty-two participants (mean age 25.3 ± 6.3 years) with mean and body fat percentage of 24.0% ± 10.7%, were placed into DEF (n=16) and N-DEF (n=16) categories. Interestingly, five of the 16 participants in DEF (31%) showed some level of depression (scores ranging from mild to severe) and only two of the 16 participants in N-DEF iv (13%) scored positively in the depression category (scores ranging from mild to moderate). Additionally, the participant with the lowest 25(OH)D concentration (5.42 ng/mL) was the only participant to meet the “severe” depression category criteria, with a score of 24 compared to other participants who scored within 0-16. Also, the only participant who scored “severe” in the stress category, was in the bottom 20% of 25(OH)D concentrations. As for GI health, the difference between average GI scores and average serum LBP concentrations between the groups were not statistically significant. Conclusion: There were no significant differences between DEF and N-DEF in perceived depression (p = 0.16), anxiety (p = 1.0), stress (p = 0.96), GI symptoms (P values ranged from 0.27 to 1.00), nor in LBP concentrations (p = 0.77). Funding: Support was received from the Graduate Student Association and College of Natural Health Sciences at the University of Northern Colorado.
Navigating Transportation Barriers: Older Adults’ Familiarity With New Mobility Options And Perceptions Toward Autonomous Vehicles In Arkansas, Arna Nishita Nithila, Suman Kumar Mitra, Michelle Gray, Alishia Juanelle Ferguson, Jennifer D. Webb
Navigating Transportation Barriers: Older Adults’ Familiarity With New Mobility Options And Perceptions Toward Autonomous Vehicles In Arkansas, Arna Nishita Nithila, Suman Kumar Mitra, Michelle Gray, Alishia Juanelle Ferguson, Jennifer D. Webb
Civil Engineering Faculty Publications and Presentations
The objective of this study is to analyze older adults’ familiarity with new transportation options (ride-hailing services, bike-share services, and shared e-scooter services) and their perception towards autonomous vehicles (fully autonomous cars), as well as how transportation barriers influence their familiarity and perceptions, in Arkansas, a predominantly rural state. Data from 775 older adults aged 60 years or older were collected between October 2021 and October 2022. To fulfill the study objective, the study used Latent Class Cluster Analysis to segment older adults into classes based on their familiarity with new transportation options and their perceptions of autonomous vehicles. The …
Ecological And Social Resilience In Wildfire-Prone Communities, Melissa Burnett
Ecological And Social Resilience In Wildfire-Prone Communities, Melissa Burnett
All Theses
Climate projections suggest extreme weather variability, introducing extremely wet years, followed by years with extreme drought. These weather conditions are creating fire weather conducive to increasing wildfires across the southeast over the next century, which can have extreme ecological consequences. The Appalachian Mountains historically had some of the highest fire frequencies in North America but have been subjected to decades of fire suppression and prevention policies, resulting in an environment subject to more high-severity wildfires. The fall of 2016 was one of the driest seasons on record in this region and resulted in intense and destructive fires in the southeastern …
Effect Of Dietary Tryptophan Supplementation And Heat Stress On Pasture Broiler Welfare And Performance, Jaelen Matthew Cherry
Effect Of Dietary Tryptophan Supplementation And Heat Stress On Pasture Broiler Welfare And Performance, Jaelen Matthew Cherry
Graduate Theses and Dissertations
Pasture-raised broiler chickens face temperature extremes that can threaten welfare. In the study, we evaluated whether a 0.26 % tryptophan-supplemented diet (T) improved heat stress (HS) resilience in Ross-708 broilers raised on pasture. At D14, birds began the T or remained on the control diet (C) and were moved outdoors. On D20 and 41, half of each group underwent six-hour HS; the remainder stayed under thermoneutral (TN) conditions. Weekly body weight, feed intake on D20 and D41 were recorded, and fear was measured using the Tonic Immobility (TI) test. Neither diet nor HS affected body weight. However, tryptophan supplementation resulted …
Sustainability: Buzz Word Or Future Of Fashion? Measuring The Feasibility Of Outright Sustainability Among Fast Fashion’S Biggest Agents, Ryan Miller
Apparel Merchandising and Product Development Undergraduate Honors Theses
Abstract
The fashion industry is currently experiencing unsustainable rates of pollution within its supply chains. The rapid increase in demand for short lead times perpetrated by large-scale retailers has led to hazardous practices negatively affecting both the environmental conditions and working conditions of producing countries. With this increased pressure, relationships between brands and suppliers have become untenable. Limited transparency and imbalanced power dynamics at the hand of the industry’s leading retailers require restructuring in order to build more sustainable and equitable supply-chain practices. Further, governmental regulation is currently limited in its capacity to enforce sustainable business practices on a global …
Vascular Risk Factors And 1-Year Cognitive Change Among Individuals With Traumatic Brain Injury, Andrea L. C. Schneider, Katherine Hunzinger, Benjamin L. Brett, Danielle K Sandsmark, Sonia Jain, Xiaoying Sun, Raquel C. Gardner, Geoffrey T. Manley, Ramon Diaz-Arrastia, Lindsay D. Nelson, Patrick Belton, Shawn Eagle, Shankar Gopinath, Ramesh Grandhi, C. Dirk Keene, Vijay Krishnamoorthy, Christine Mac Donald, Michael Mccrea, Randall Merchant, Pratik Mukherjee, Laura B. Ngwenya, David Okonkwo, Claudia Robertson, David Schnyer, Sabrina R. Taylor, John K. Yue, Ross Zafonte
Vascular Risk Factors And 1-Year Cognitive Change Among Individuals With Traumatic Brain Injury, Andrea L. C. Schneider, Katherine Hunzinger, Benjamin L. Brett, Danielle K Sandsmark, Sonia Jain, Xiaoying Sun, Raquel C. Gardner, Geoffrey T. Manley, Ramon Diaz-Arrastia, Lindsay D. Nelson, Patrick Belton, Shawn Eagle, Shankar Gopinath, Ramesh Grandhi, C. Dirk Keene, Vijay Krishnamoorthy, Christine Mac Donald, Michael Mccrea, Randall Merchant, Pratik Mukherjee, Laura B. Ngwenya, David Okonkwo, Claudia Robertson, David Schnyer, Sabrina R. Taylor, John K. Yue, Ross Zafonte
Department of Exercise Science Faculty Papers
IMPORTANCE: Traumatic brain injury (TBI) and vascular risk factors are associated with cognitive impairment, but it is unknown if individuals with vascular risk factors experience worse cognitive outcomes after TBI.
OBJECTIVE: To evaluate cognitive function among patients with TBI with vs without comorbid preinjury vascular risk factors.
DESIGN, SETTING, AND PARTICIPANTS: This prospective cohort study examined individuals with TBI enrolled in the Transforming Research and Clinical Knowledge in TBI (TRACK-TBI) Study between February 26, 2014, and August 8, 2018, with a 1-year follow-up. Analyses were conducted February 26, 2024, to May 29, 2025.
EXPOSURES: Vascular risk factors (ie, hypertension, diabetes, …
Analysis Of An Ethanol Sensitive Bmp-Nkx2.3-Fgf Signaling Pathway In Pouch Morphogenesis., Hieu Dai Le Vo
Analysis Of An Ethanol Sensitive Bmp-Nkx2.3-Fgf Signaling Pathway In Pouch Morphogenesis., Hieu Dai Le Vo
Electronic Theses and Dissertations
Craniofacial malformations lie at the heart of Fetal Alcohol Spectrum Disorders (FASD). While there is growing evidence for a genetic component to FASD, little is known of the cellular mechanisms underlying these ethanol-sensitive loci in facial development. Bone Morphogenetic Protein (Bmp) signaling pathway dependent pouch formation is a key mechanism in facial development. We have previously shown that multiple Bmp mutants are sensitized to ethanol-induced facial defects. However, ethanol does not directly impact Bmp signaling. This suggests that downstream effectors, like nkx2.3 and Fibroblast Growth Factor (Fgf) signaling, may mediate the impact of ethanol on Bmp mutants. Here, I …
Acute Exposure Of American Oyster (Crassostrea Virginica) To Selected Antidepressant Drug: Histological, Biochemical, And Immunohistochemical Assessments, Md. Faisal Amin
Acute Exposure Of American Oyster (Crassostrea Virginica) To Selected Antidepressant Drug: Histological, Biochemical, And Immunohistochemical Assessments, Md. Faisal Amin
Theses and Dissertations
The rapid increase in pharmaceutical use has brought significant health benefits to humans. Studies have shown that many pharmaceuticals, such as antidepressants, are often detected in surface waters, groundwater, and even drinking water. These pharmaceuticals in aquatic environments threaten marine life seriously. Marine bivalves are vital source of seafood for people worldwide. In this study, we examined the effects of short-term exposure to fluoxetine, an antidepressant used to treat depression, at low (0.5 μg/L) and high (5 μg/L) doses over a one-week period on American oysters (Crassostrea virginica) under controlled laboratory conditions. Histological analysis revealed atrophy in the gills and …
Understanding The Dynamics Of Formal Mentoring In Professional Identity Development Of Early Career Extension Professionals: A Phenomenological Approach, Anuradha Choudhary
Understanding The Dynamics Of Formal Mentoring In Professional Identity Development Of Early Career Extension Professionals: A Phenomenological Approach, Anuradha Choudhary
Department of Agricultural Leadership, Education, and Communication: Dissertations, Theses, and Student Research
Formal mentoring plays a crucial role in shaping the professional identity of early-career extension professionals; however, limited research has explored how these dynamics affect professional identity development within formal mentorship structures. This study uses a transcendental phenomenological approach to understand how mentees and mentors perceive the impact of formal mentoring on professional identity development within the Nebraska Extension system. Using criteria-based random sampling and snowball sampling, the study engaged 10 mentees and 10 mentors, employing semi-structured interviews, focus groups utilizing ripple effect mapping, and document analysis of mentoring agreements, program guidelines, and mentoring checklists. Following Moustakas' (1994) transcendental phenomenology framework, …
The Effect Of An Acute Bout Of Rock Climbing On Cognitive Functioning And Cortisol Levels, Vanessa Steigauf
The Effect Of An Acute Bout Of Rock Climbing On Cognitive Functioning And Cortisol Levels, Vanessa Steigauf
All NMU Master's Theses
Rock climbing is an understudied physical activity (PA) that demands active decision-making, integration of sensory and visual input, and continuous regulation of nervous system activity to produce complex motor outputs. The unique psychological demands of climbing warrant studying its effect on cognition and brain health. I recruited 26 generally healthy adults for a randomized-controlled study. Climbing experience, PA and perceived stress were self-reported. Each participant was randomly assigned to a climbing (10x2 minutes climb, moderate intensity) or control group (seated, watching climbing-related video). The primary outcomes, cognitive performance and salivary cortisol levels were assessed by the Stroop test. A linear …
Pediatric Occupational Therapists’ Perception On How Nature-Based Play Affects Fine Motor Development, Abbi M. Rosenow
Pediatric Occupational Therapists’ Perception On How Nature-Based Play Affects Fine Motor Development, Abbi M. Rosenow
Human Development and Family Sciences Undergraduate Honors Theses
This study aimed to explore the benefits of nature-based pediatric occupational therapy and the influence of nature and nature-based play on fine motor development. It was hypothesized that nature and nature-based play would positively impact a child’s fine motor skills, and that nature-based occupational therapy would offer unique benefits to a child’s therapeutic experience. To examine these relationships, a survey was distributed to pediatric occupational therapists across the United States. The survey was designed to gather insights into how occupational therapy supports fine motor development, how nature-based play/therapy enhances these skills, and the perceived benefits of incorporating nature into therapeutic …
Role Of Cellular Proteins In The Regulation Of Herpes Simplex Virus Type 1 Gene Expression And Dna Replication, Joseph R. Heath
Role Of Cellular Proteins In The Regulation Of Herpes Simplex Virus Type 1 Gene Expression And Dna Replication, Joseph R. Heath
Electronic Theses and Dissertations
Herpes simplex virus type 1 (HSV-1) is a ubiquitous human pathogen that infects the majority of the human population. To facilitate infection, this virus relies on a combination of host and viral factors. Previous studies have revealed a number of host proteins that associate with the HSV-1 genome throughout infection but their putative role(s) in this process remain undefined. This study aims to examine two such proteins to determine their contributions to HSV-1 gene expression and DNA replication. The first of these factors is Ints3, a subunit of the Integrator complex. This protein complex functions in transcription regulation, and Ints3 …
Cg18562578 Methylquant Assay For The Discrimination Of Monozygotic Twins, Amber P. Chauca
Cg18562578 Methylquant Assay For The Discrimination Of Monozygotic Twins, Amber P. Chauca
Student Theses
Monozygotic (MZ) twins have identical DNA, making traditional profiling methods insufficient in their discrimination. However, MZ twins can be differentiated by their levels of DNA methylation. Our research group previously developed a methodology to detect cg18562578 DNA methylation levels in MZ twins based on a two- step PCR approach and a cg18562578 MethylQuant Assay. That study generated data for only 64% of the samples it investigated, and showed a discrimination power of 77% to discriminate between MZ twins. Here, we used the same methodology but a different approach to determine DNA methylation in 73 previously unsuccessful twin pairs. We diluted …
Arginine Vasotocin And Corticosterone In Nesting And Non-Nesting Loggerhead Sea Turtles In X’Cacel-X’Cacelito Sanctuary, Krista Blair Reed
Arginine Vasotocin And Corticosterone In Nesting And Non-Nesting Loggerhead Sea Turtles In X’Cacel-X’Cacelito Sanctuary, Krista Blair Reed
Theses and Dissertations
Sea turtles exhibit distinct behaviors before and after egg laying, however, not all individuals successfully oviposit. Some females display disruptions in their typical nesting behavior, returning to the water without laying eggs, which is referred to as a non-nesting emergence (NNE). NNEs can be due to external disturbances on the beach, but why they occur is often unclear. Arginine vasotocin (AVT) is a neuropeptide involved in various physiological processes, including stimulating smooth muscle contraction of the oviduct to facilitate egg deposition in nesting sea turtles. On the other hand, corticosterone is the primary stress hormone in sea turtles and is …
Analyzing How Taste And Nutrition Impact Learning And Memory In Honey Bees Through Olfactory Associative Conditioning, Alessandra Elizabeth Perry
Analyzing How Taste And Nutrition Impact Learning And Memory In Honey Bees Through Olfactory Associative Conditioning, Alessandra Elizabeth Perry
Theses and Dissertations
Honey bees detect sweet nectar, but not all sweet-tasting sugars provide nutrition. Unlike fruit flies, which can learn to avoid non-nutritious sweet foods, bees may lack this ability. To test if bees form caloric frustration memory (CFM), we conditioned them using odors paired with L-glucose (sweet but non-nutritious) or D-glucose (sweet and nutritious). Bees rewarded with L-glucose showed lower learning and long-term memory compared to D-glucose. Bees cannot differentiate between an odor associated with rewards containing malaise-causing compounds and an odor associated with a reward alone during differential conditioning. Therefore, we used differential conditioning to determine if lower acquisition in …
The Role Of Androgen Receptor And B2/Alu Sine Rna Interaction In Hippocampal Dendritic Development, Troy A. Richter
The Role Of Androgen Receptor And B2/Alu Sine Rna Interaction In Hippocampal Dendritic Development, Troy A. Richter
Graduate Doctoral Dissertations
Once dismissed as “junk”, transposable elements have recently gained recognition for their regulatory roles, especially in the brain. During development, circulating androgens promote proper morphological development of hippocampal neurons. We and others have shown that murine B2 SINE RNA is a regulator in the rodent hippocampus. It is unknown, however, if B2 is necessary for the proper development of hippocampal neurons. This dissertation investigates the role of murine B2 in the development of primary hippocampal neurons in combination with androgen treatment. We first examined the role of ALU SINE and androgen receptor in a prostate cancer cell model and found …
Family-Level Factors That Influence Physical Activity Among Hispanic Adolescents At Risk For Type 2 Diabetes, Sandra Mihail, Ayleen A Hernandez, Erica G Soltero
Family-Level Factors That Influence Physical Activity Among Hispanic Adolescents At Risk For Type 2 Diabetes, Sandra Mihail, Ayleen A Hernandez, Erica G Soltero
Children’s Nutrition Research Center Staff Publications
Objective: Family-based health promotion and disease prevention strategies are recommended as best practice; however, there is limited knowledge regarding the family-level factors that influence modifiable behavior risk factors like physical activity (PA) among Latinx adolescents. This study addressed this knowledge gap by using qualitative methods to identify perceptions of family-level factors that influence PA among Hispanic youth.
Methods: We conducted semistructured, open-ended interviews with 20 Latinx adolescents (14-16 years) with obesity (body mass index ≥95th percentile) to identify their perceptions of how family influences PA. Content analysis was used to identify emergent themes, which were then compared across demographic factors, …
From Cities To Ranches: Assessing Public Support For Jaguar (Panthera Onca) Conservation And Livestock Predation In Colombia, Luz Angelica Solano
From Cities To Ranches: Assessing Public Support For Jaguar (Panthera Onca) Conservation And Livestock Predation In Colombia, Luz Angelica Solano
All Dissertations
Jaguars are among the most emblematic large carnivores worldwide. Nonetheless, the species has declined by 25% in less than 25 years and their range has been reduced by 55%, approximately, primarily due to habitat loss from increasing agricultural development, retaliatory killings from human-jaguar conflict, and overhunting of their natural prey. Given the anthropogenic nature of these threats, developing effective coexistence strategies and public support for jaguar conservation are increasingly urgent for the continued persistence of this species. I conducted a scoping review to assess trends and gaps in the existing peer-reviewed literature, grey literature, and news articles related to human-jaguar …
An Evaluation Of Key Components Of Natural Resource Camps, Undergraduate Persistence And Success In Natural Resources, Brandy Bishop
An Evaluation Of Key Components Of Natural Resource Camps, Undergraduate Persistence And Success In Natural Resources, Brandy Bishop
Electronic Theses and Dissertations
This study explores the key components that connect natural resource camps, undergraduate persistence, and overall success through gainful employment within the natural resource industry. The aim of this study was to assess early interest and attitudes towards natural resource career pathways and how education interventions shape students’ career outcomes thus leading to overall success. A longitudinal mixed method design was used combining Conservation Careers Camp survey data (n = 39) with institutional records for Forestry majors (n =655) in the Arthur Temple College of Forestry and Agriculture on the Stephen F. Austin State University campus. Quantitative data was analyzed through …