Digital Commons Network^™

Effect Of Cyclic Heat Stress On Hypothalamic Oxygen Homeostasis And Inflammatory State In The Jungle Fowl And Three Broiler-Based Research Lines, Giorgio Brugaletta, Elizabeth Greene, Alison Ramser, Craig W. Maynard, Travis Tabler, Federico Sirri, Nicholas B. Anthony, Sara K. Orlowski, Sami Dridi

Poultry Science Faculty Publications and Presentations

Heat stress (HS) is devastating to poultry production sustainability due its detrimental effects on performance, welfare, meat quality, and profitability. One of the most known negative effects of HS is feed intake depression, which is more pronounced in modern high-performing broilers compared to their ancestor unselected birds, yet the underlying molecular mechanisms are not fully defined. The present study aimed, therefore, to determine the hypothalamic expression of a newly involved pathway, hypoxia/oxygen homeostasis, in heat-stressed broiler-based research lines and jungle fowl. Three populations of broilers (slow growing ACRB developed in 1956, moderate growing 95RB from broilers available in 1995, and …

Behavior And Immune Response Of Conventional And Slow-Growing Broilers To Salmonella Typhimurium, Ashlyn M. Snyder, Sean P. Riley, Cara I. Robison, Darrin M. Karcher, Carmen L. Wickware, Timothy A. Johnson, Shawna L. Weimer

Poultry Science Faculty Publications and Presentations

Fast growth rate in broiler chickens comes with welfare concerns and the contribution of growth rate to pathogen resistance and sickness behavior is relatively unknown. The objective of this study was to evaluate physiological and behavioral responses of conventional (CONV) and slow-growing (SG) male broilers challenged with Salmonella Typhimurium. CONV (n = 156) and SG (n = 156) chicks were raised in a pen with wood litter shavings until day 7 of age, when birds were transferred to 24 isolators (n = 11 chicks/isolator). On day 14 of age, half of the birds (n = 12 …

The Covid-19 Pandemic And Material Hardships: A Qualitative Study Of Undocumented Immigrants In The United States, Erika Chavez-Marroquin

Electronic Theses, Projects, and Dissertations

The study aimed to recognize the financial impact the COVID-19 pandemic had on the undocumented immigrants living in southern California. Utilizing an exploratory method with a qualitative approach. The research interviewed English and Spanish-speaking participants who are a part of the undocumented population and have employee history. The study utilized a purposive and snowball sampling method and explored the financial impact the COVID-19 pandemic had on participants’ personal finances, resources they were able to access, and gaps in programs or additional resources through federal and state aid. Through the data analysis, the research identified the following themes: limitations on accessible …

Accessibility Of Mental Health Resources In Schools, Zitlaly Lizeth Cruz-Roman, Vianney Consepcion Sandoval

Electronic Theses, Projects, and Dissertations

This study aimed to examine parents’ and staff’s perception of the accessibility and awareness of mental health resources in school. Mental health resources are made available in school settings; however, not all families and students are aware of the resources being provided. To address the accessibility of mental health resources, research needs to take place to understand why these resources are not being utilized. Individuals’ mental health will improve by creating awareness of the resources since they will be aware of the resources and use them based on their needs. The research project utilized quantitative research methods and descriptive research …

Combating Childhood Obesity In Rural Areas - A Systematic Review, Ramanjot Bains

Research Papers

No abstract provided.

Burden Of Food Insecurity Among College Students: A Cross-Sectional Study During The Covid-19 Pandemic, Saba Sami

Electronic Theses, Projects, and Dissertations

Background: Food insecurity is lack of access to proper nutrition for an individual to obtain a healthy lifestyle. The goal of this research is to determine the frequency of food insecurity among college students at a four-year college institution during COVID-19 pandemic in association to mental and physical health status.

Methods: This study was conducted among college students using cross-sectional study method. All data were collection virtually and kept anonymous. All statistical analyses were conducted using SPSS version 28 with (p<.05), denoting significance.

Results: In the study there were a total of 98 participants who were being analyzed. All the participants were …

Can Social Workers Provide Access To Healthier Food Choices To Low-Income Families With Urban Farming, Nayely Chairez

Electronic Theses, Projects, and Dissertations

Background: Low-income communities have higher rates of being food insecure at some point in their lives which can lead to chronic illnesses and have an impact on mental health. Objectives: This research aimed to explore the following: (1) the impact of urban farming in low-income communities and (2) the roles social workers have in addressing food insecurity through urban farming. Methods: This study utilized a qualitative method of collecting data. Data was collected through one-on-one interviews with board members, volunteers, and community members from an urban farm organization. Interviews were conducted and recorded through the online platform …

Coping With The Impact Of The Covid-19 Pandemic In Southern California: A Qualitative Study Of Families In Poverty, Jaqueline Nunez Cruz

Electronic Theses, Projects, and Dissertations

There is a gap in the social welfare literature concerning the perspectives of low-income families about the impact of the COVID-19 pandemic on their lives. This qualitative study contributes to the literature by exploring how families in poverty across Southern California survived the pandemic. Interviews were conducted with 10 heads of household (N = 10) to determine the impact of the pandemic and the strategies used to cope with the crisis. Thematic analysis of the data revealed five key themes: a) the devastating impact of the pandemic on low-income families, b) the use of various coping mechanisms by families, b) …

Bayesian Joint Modeling For Longitudinal Outcomes Of Exponential Families And Informative Time Points, Michael Safo Oduro

Dissertations

The benefits of longitudinal data in clinical research are immense, owing to the potential to detect phenomenon changes and trends over time. An avalanche of traditional methods exist for the analysis of this data kind, most of which are predicated on the assumption of fixed time design for study individuals. This assumption however, is not always tenable. Consider occurrences that can alter the time or visit profile of subjects in a clinical trial, such as adverse events. These may result in not just irregular visit times, but also unbalanced data on subject outcomes. Hence, one can consider visit times to …

Mothers’ Perspectives On Language And Literacy Development In Children With Disabilities Adopted From China, Jessica B. Hovland

Dissertations

Children with disabilities and special needs make up the vast majority of those currently being adopted internationally into the United States (U.S.). China has been a leading sending country for international adoption since the 1990s and remains one of the few nations with thousands of orphaned or abandoned children, many with congenital disabilities or significant medical needs, in government welfare institutions. While most children adopted internationally (CAI), whether from China or other nations, experience developmental catch-up after adoption, children with disabilities and those who spent time in institutional settings exhibit persistent language deficits that impact literacy and academic skills as …

Are Natural Killer Cells Novel Mediators Of The Effects Of Cannabidiol On Mental Health, Sleep Quantity, Sleep Quality, And Immune Function?, Jacob Norbert Kisiolek

Dissertations

Cannabidiol (CBD) has increased in popularity since the United States Farm Bill legalized hemp production in 2018 and is now projected to become a $24.4 billion dollar industry by 2025. Since its legalization, CBD is thought to be an antiepileptic, anxiolytic, and antipsychotic, as well as an agent to improve mental health, quality of life, aspects of sleep and immune function. However, many of these claims lack scientific evidence. The purpose of this randomized, double blind, placebo-controlled trial was to determine the effects of an 8-week CBD intervention on measures of mental health, sleep quantity, sleep quality, and natural killer …

Weight Gain Trajectory Over Five Years For Adult Primary Care Patients In Nebraska, Elizabeth M. Morris

Capstone Experience: Master of Public Health

INTRODUCTION: The continued rise in the prevalence of adult obesity in the United States is a public health concern. Several studies have identified the increasing rates of obesity, its impacts, and the factors leading to obesity. Some researchers have made obesity prevalence projections at the national and state levels. This study aims to fill the critical gap in real-time weight data trends among primary care adult patients in Nebraska. The main goal of this study is to determine and analyze the weight trajectory of adults in Nebraska over the past five years and determine if the trends vary among age …

Utilizing Re-Aim To Assess Adolescent Weight Loss Interventions: A Systematic Review, Jordan Mccullough

Capstone Experience: Master of Public Health

Adolescent overweight/obesity is an ongoing concern for public health professionals. One out of every five adolescents are overweight, and one out of every three is at risk. Adolescent overweight/obesity is associated with a higher chance of overweight/obesity, premature death, and disability in adulthood. A 2018 systematic review by Moores et al. compared the effectiveness of community-based treatment programs for adolescents (13-17 years) who are overweight and obese by comparing pre-program to post-program changes in weight-related measurements and health-behavior changes. While looking at the effectiveness of a program provides valuable information, other elements (i.e., representativeness of participants, implementation measures such as …

The Effect Of Post-Traumatic Stress Disorder On First Responders Following A Disaster: A Literature Review, Briar Butner

Capstone Experience: Master of Public Health

First responders work in a high-stress environment that can potentially produce traumatic situations. This includes aiding in the recovery and response efforts of critical events such as a disaster. A significant risk factor for developing post-traumatic stress disorder symptoms is people who have been through a disaster (National Institute of Mental Health, 2019). This literature review aims to search for evidence on PTSD in first responders following a disaster, identify the factors associated with the development of PTSD, and make recommendations on best practices to reduce or mitigate the incidences of PTSD. The search was conducted in three academic databases: …

Effects Of Caffeine Doses On Rumen Fluid Fermentation Profile And Nutrient Digestibility When Fed Lactating Cow Diet On Continuous Cultures Fermentation, Monica Toledo-Villafane

All Theses

Caffeine is commonly known as a potent bioactive compound. This molecule plays an essential role in plants' defense. Because of its antimicrobial activity, caffeine has been cataloged as a toxic component for microbes by targeting DNA repair mechanisms and suppressing microbial proliferation. Nowadays, the caffeine action to enhance mixed microbial cultures digestion has captured the attention of researchers.

In ruminants, the inhibition of ruminal methanogenesis has been deeply studied to enhance rumen fermentation to increment metabolizable energy. In dairy cows, methane production represents a loss of 6.0 ± 1.18% of the energy intake (Niu et al., 2018), reducing the metabolizable …

The Effect Of A Health Educational Program On Sleep Related Health Outcomes, Swetha Sirigineedi

Biological Sciences Undergraduate Honors Theses

Sleep quality has effects on both physical and mental health. Because of this, sleep hygiene is an important health goal. Participation in health programs promoting healthy behaviors has helped people reach their health goals and elicited positive behavior change. Because of this, it was of interest to determine if participation in a virtual, multi-media health education program improved health and wellbeing outcomes of Arkansans. The main objective of this study was to determine the effect of a 20-week behavior and health educational program on the ability of participants to achieve their health goals and improve their health behaviors related to …

Life After Death – Does Carcass Biodiversity Scale With Carcass Body Size?, Troy Warfield

Biological Sciences Undergraduate Honors Theses

Mammals play a large role in the ecosystems where some, especially large-bodied mammals, act as ecosystem engineers. Mammal carcasses, particularly those of large body mass act as a temporary island of dense nutrients that support other organisms, including other mammal species, for an extended period. Research in this field currently focuses on the link between mammal carcass size and nutrient availably or on non-mammalian size and biodiversity, but little is available on the correlation between mammal carcass size and its influence on ecosystem biodiversity. Here we ask, does the available biomass (i.e., body size) of the carcass affect its role …

Effect Of Larval Rearing Environment On Female Bicyclus Anynana Mate Choice, Adriana Beruvides

Biological Sciences Undergraduate Honors Theses

Around eighty percent of animals go through metamorphosis or drastic phase changes at some point in their life. We know that juvenile interactions can influence adult behavior and mate choice in species that don’t go through metamorphosis, but we know very little about how social interactions during early life stages of animals who go through metamorphosis affect mate choice. To fill this knowledge gap, I used the butterfly Bicyclus anynana to assess whether female butterflies raised in complete isolation from the beginning of their lives exhibit the same mate preference as butterflies raised in normal social conditions. To test this, …

Root Phenotyping Of Peptide-Treated Glycine Max, Salem Jackson

Biological Sciences Undergraduate Honors Theses

Plant elicitor peptides (Peps) – endogenous chains of amino acids involved in natural plant defense – have been shown to decrease damage from herbivores and pathogens by inducing an immune response, increasing the emission of volatile organic compounds (VOCS), transcripts, and metabolites. Exogenous treatment of soybean seeds with plant elicitor peptide GmPep3 has been shown to induce these broad-spectrum defenses and offers a new method for increasing crop yield. However, the effects of GmPep3 on indicators of soybean health – root characteristics, growth stages, etc. – have not been fully realized.

Using the root-phenotyping platform RhizoVision Explorer, several root traits …

An Investigation Into The Roles Of Aldose Reductase And Acetate Kinase In The Metabolism Of Entamoeba Histolytica, Matthew B. Angel

All Dissertations

Entamoeba histolytica is an amoebic parasite that infects an estimated 90 million people worldwide and causes approximately 100,000 deaths per year. As the causative agent of amoebic dysentery, this food- and water-borne pathogen represents a significant public health burden worldwide, particularly in areas with poor sanitation. While treatments for amoebiasis exist, they are often limited in their effectiveness. Thus, efforts to better understand the biology and physiology of this organism are vital to the development of novel treatments for this disease.

E. histolytica lacks the enzymes for many common metabolic pathways such as the citric acid cycle and oxidative phosphorylation …

Inadequate Wash Infrastructure Among Rural Populations In The Pacific Islands, Olivia Wallgreen

Ballard Brief

Water, Sanitation, and Hygiene (WASH) are key aspects for development that allows families to five clean and healthy lives. However. many regions of the world. including the Pacific Islands Region. do not have proper facilities and funding to build or maintain WASH infrastructure. especially in rural areas. About 45% of rural Pacific Islanders lack access to adequate sanitation and 13% lack access to basic drinking water. Natural disasters. climate change, insufficient government action. and difficult geographic features make developing WASH infrastructure challenging. Inadequate WASH infrastructure increases the prevalence of disease and negatively affects the ecosystems of the islands. While these …

Inadequate Maternal Health Care For Women In The United States, Rebecca Stull Zundel

Ballard Brief

Although insufficient maternal health care has seen improvements in most developed countries, it is still a rising issue in the United States. This insufficiency may partly be due to the accessibility barriers that both rural and urban women face in reaching adequate care. Additionally, the expenses of maternal care or gender discrimination within medical establishments may dissuade women from seeking the care that they need. Women who receive inadequate care are at a higher risk for maternal mortality, the death of their unborn or newly born infant, and having a low-birth weight child, which comes with many issues of its …

The Cellular Dynamics Of Early And Transitional Human Breast Milk, Cas Lemaster, Stephen Pierce, Eric S. Geanes, Santosh Khanal, Staci Elliott, Allison Scott, Daniel A. Louiselle, Rebecca Mclennan, William E. Truog, Devika Maulik, Tamorah Lewis, Tomi Pastinen, Todd Bradley

Research at Children's Mercy Month 2022

Breast milk (BM) is a complex fluid containing factors essential for infant nutrition and immunity. Breastfeeding has been shown to be protective against infections and other immune-mediated diseases during the lacation period and beyond in later childhood. This suggests that BM also imprints the neonatal immune system and influences long-term health. BM also contains populations of maternal-derived cells. Which factors in BM that are important for neonatal health and how they change during lactation have not been well-defined. In this study, we used a single-cell transcriptomic approach to identify and define cell types of early and transitional milk. We collected …

Feeding Preference Of The Sea Urchin Arbacia Punctulata For Algal Turf Over Kelp In A Degraded Kelp Forest Ecosystem, Kenneth J. Hamel

Theses, Dissertations and Culminating Projects

Increasingly severe ocean warming and marine heatwave events are driving declines in habitat-forming kelps worldwide. Direct mortality from extreme temperatures, coupled with destabilization of kelp forest communities, commonly trigger ecological community shifts from dominant kelp forests to an algal turf dominated state. Opportunistic algal turf species are more resilient to warming and lack the fundamental structure of kelp forests, and thus reduce ecosystem services and biodiversity. Once in place, algal turf communities contain ecological feedback mechanisms, diminishing kelp recruitment, and potential recovery. The various feedback mechanisms and ecological thresholds that maintain or drive community shifts between kelp forest and algal …

Insomnovation – Natural Sleep Solutions Business Plan, Nikolas Limperis

Finance Undergraduate Honors Theses

Currently, 70 million Americans suffer from some sort of sleep issues from trouble falling asleep, trouble staying asleep, and daytime drowsiness. However, the sleep solutions on the market today are either highly artificial or only address the symptoms of sleep issues rather than the underlying cause. This is what Insomnovation seeks to address. By providing supplementation to seven key vitamins and minerals, Insomnovation hopes to bring a natural solution to put the issue of sleep disorders to rest.

The Heritage Family Study: A Review Of The Effects Of Exercise Training On Cardiometabolic Health, With Insights Into Molecular Transducers, Mark A. Sarzynski, Treva K. Rice, Jean Pierre Després, Louis Pérusse, Angelo Tremblay, Philip R. Stanforth, André Tchernof, Jacob L. Barber, Francesco Falciani, Clary Clish, Jeremy M. Robbins, Sujoy Ghosh, Robert E. Gerszten, Arthur S. Leon, James S. Skinner, D. C. Rao, Claude Bouchard

Division of Basic Science Faculty Publications

The aim of the HERITAGE Family Study was to investigate individual differences in response to a standardized endurance exercise program, the role of familial aggregation, and the genetics of response levels of cardiorespiratory fitness and cardiovascular disease and diabetes risk factors. Here we summarize the findings and their potential implications for cardiometabolic health and cardiorespiratory fitness. It begins with overviews of background and planning, recruitment, testing and exercise program protocol, quality control measures, and other relevant organizational issues. A summary of findings is then provided on cardiorespiratory fitness, exercise hemodynamics, insulin and glucose metabolism, lipid and lipoprotein profiles, adiposity and …

The Energy Balance Model Of Obesity: Beyond Calories In, Calories Out, Kevin D. Hall, I. Sadaf Farooqi, Jeffery M. Friedman, Samuel Klein, Ruth J.F. Loos, David J. Mangelsdorf, Stephen O'Rahilly, Eric Ravussin, Leanne M. Redman, Donna H. Ryan, John R. Speakman, Deirdre K. Tobias

Clinical Research Faculty Publications

A recent Perspective article described the "carbohydrate-insulin model (CIM)"of obesity, asserting that it "better reflects knowledge on the biology of weight control"as compared with what was described as the "dominant energy balance model (EBM),"which fails to consider "biological mechanisms that promote weight gain."Unfortunately, the Perspective conflated and confused the principle of energy balance, a law of physics that is agnostic as to obesity mechanisms, with the EBM as a theoretical model of obesity that is firmly based on biology. In doing so, the authors presented a false choice between the CIM and a caricature of the EBM that does not …

Five Public Concerns Represented By Environmental Groups In The Development Of Regional Free Trade Agreements: A Case Study Of The United States-Mexico-Canada Agreement (Usmca), Julian Rodriguez

International Studies (MA) Theses

This thesis explores how the public discourse surrounding the United States-Mexico-Canada Agreement (USMCA) negotiations affected the formulation of the free trade agreement (FTA). More specifically, the project set out to determine if North American environmental groups successfully had public concerns addressed and codified in the Environment chapter of the USMCA. By analyzing official statements made in press releases by seventeen prominent Environmental groups operating in the United States, Mexico, and Canada, the thesis provides an account of the concerns related to liberalized regional trade prior to the USMCA’s ratification in 2020. The analysis of organization statements regarding public health, climate …

Child Mortality In Africa And South Asia: A Multidimensional Research And Policy Framework, Rachel Kimani, Samwel Gatimu

School of Nursing & Midwifery, East Africa

Globally, progress has been made to address the diagnosis and management of common and avoidable acute illnesses that contribute to child mortality. Nevertheless, regions across sub-Saharan Africa and south Asia continue to have the highest rates of mortality in children younger than 5 years, with most deaths occurring after discharge from health facilities, indicating a gap in care following hospitalisation.

Possible Surf And Turf Mutualism: The Potential Of Yeast Grown From Maine Wood As Feed For Atlantic Salmon, Gina Scott

All Theses And Dissertations

With fed aquaculture expanding, challenges are being faced with increasing demands for protein for feed. Fishmeal as a protein is at high cost and low supply, and meals from terrestrial agriculture can impact fish health; both also generate environmental challenges. One potential alternative protein is yeast, which can be grown using waste softwood. Simultaneously, Maine forestry has lost buyers of waste wood with several paper mill closures. If yeast is produced as an alternative protein for fish feed using this wood, both Maine Atlantic salmon farming, Maine’s most valuable form of aquaculture, and Maine forestry could benefit. Environmental impact and …