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The Role Of The Bacterial Endosymbiont, Arsenophonus, In The Soybean Aphid, Aphis Glycines, Jason A. Wulff

Theses and Dissertations--Entomology

Bacterial endosymbionts can have profound impacts on their host’s ecology. Notably, endosymbionts can protect their hosts against natural enemies and influence host plant interactions. The endosymbiont Candidatus Arsenophonus infects a wide taxonomic range of arthropod hosts, and is suspected of an uncharacterized mutualistic role in hemipterous insects. In the soybean aphid, Aphis glycines, an introduced pest of soybeans in the United States, Arsenophonus is the sole facultative endosymbiont. The focus of this dissertation is to characterize the role of Arsenophonus in the aphid, with an overall emphasis on its impact on aphid management strategies.

I first used diagnostic PCR …

Changing Litter Resources Associated With Hemlock Woolly Adelgid Invasion Affect Benthic Communities In Headwater Streams, Christopher J. Strohm

Theses and Dissertations--Entomology

Hemlock woolly adelgid is an invasive herbivore causing extensive mortality of eastern hemlock, an important foundation species that provides stable conditions influencing biological communities. Hemlock is often found in riparian areas and following its decline, broadleaved species, including birch, beech, and rhododendron, will replace it. These plants differ from hemlock in patterns of canopy cover and leaf properties, which influence conditions and resources within streams.

My goal was to evaluate potential impacts of adelgid-induced alterations to riparian canopies and litter on benthic communities and litter breakdown in streams. I characterized benthic invertebrate communities, litter colonization and litter breakdown in streams …

Exploring The Links Between Seasonal Variation And Spider Foraging, Thomas Edward Dantas Whitney

Theses and Dissertations--Entomology

According to optimal foraging theory, generalist predators, such as spiders, are thought to feed indiscriminately on prey according to its availability, especially when food is scarce. In contrast, generalists can display selective feeding decisions under regimes of high prey abundance, but few studies have tracked changes in prey choice on a seasonal basis under open field conditions. Additionally, adaptations to surviving winter have been largely ignored in the research of foraging behavior. To elucidate this, I monitored prey availability and collected common forest-dwelling wolf spiders for molecular gut-content analysis, in parallel for 18 months, to assess the temporal changes occurring …

Farmers’ Market Shopping Behaviors And The Association Of Fruit And Vegetable Intake, Sarah G. Perkins

Theses and Dissertations--Nutrition and Food Systems

Fruit and vegetable (FV) intake continues to decline among sub-population in the United States. Current policies and interventions have aimed to improve intake by improving access to fruits and vegetables. One Centers for Disease Control and Prevention suggested strategy is to improve access to farmers’ markets in rural areas. The aims of this study were to determine if the frequency of shopping at Farmers’ Markets is associated with fruit and vegetable intake, adjusted for age, income and education and to compare rural and non-rural areas frequency of Farmers’ Market attendance based on Kentucky farmers’ market interview participants (n = 102). …

Examining Reasons For Low Fidelity To Educational Programs In Patients With Gestational Diabetes: A Qualitative Study, Lauren Brinkman Roberson

Theses and Dissertations--Nutrition and Food Systems

Gestational diabetes mellitus (GDM) is an increasing problem in the U.S. Many comorbidities are associated with GDM: increased risk for type 2 diabetes, neonatal hypoglycemia and fetal malformation. Healthcare organizations develop GDM educational programs to provide women with knowledge and skills to manage GDM and reduce health risks. While there are significant benefits to attending GDM educational programs, attendance rates are low. Little research has been conducted to determine reasons for low attendance in GDM educational programs. The purpose of this study was to explore the experiences of women with GDM and to describe factors influencing GDM educational program attendance. …

Factors In Breastfeeding Initiation Among Central Kentucky Wic And Non-Wic Participants, Lila Nicole Farnsworth

Theses and Dissertations--Nutrition and Food Systems

Vital statistics data were statistically analyzed to determine who is breastfeeding in central Kentucky and if factors differ between those in a WIC and non-WIC population. The sample consisted of 479 postpartum women aged 18-44 in central Kentucky. Participants in the study were analyzed as a whole, then divided by their participation in the WIC program (n=304) or non-participation in the WIC program (n=175). Variables recorded in the vital statistics form were analyzed. These variables included age, education level, marital status, and ethnicity of the mother, household income status, and gender, gestational age, and birth weight of the infant. In …

Promoting Healthy, Home-Cooked Meals: Formative Research For A Social Marketing Program Targeting Low-Income Mothers, Jean M. Najor

Theses and Dissertations--Nutrition and Food Systems

The purpose of this study is to gain a deeper understanding of the dynamic of perceived benefits and barriers associated with cooking meals at home. The findings will be used to design a social marketing campaign promoting healthy home-cooked meals. Participants included 64 SNAP-eligible mothers throughout the state of Kentucky aged 21-49 years with young children. Eight focus groups were conducted in four metro and four non-metro counties. A mixed methods approach was used to examine behaviors such as where families purchase foods, the types of foods purchased, family cooking skills and habits, and family time management. Results from this …

The Effect Of A Nutrition Education Program On Nutrition Knowledge, Dietary Intake, Body Composition And Perceived Sport Performance Among High School Athletes, Aaron Kyle Schwartz

Theses and Dissertations--Nutrition and Food Systems

Nutrition knowledge, dietary intake, body composition and perceived sport performance were measured before and after an eight week nutrition intervention. The sample consisted of eleven male high school football athletes aged 14-18 years old. Baseline nutrition knowledge was higher than anticipated but fruit and vegetable intake was low. As a result of the nutrition intervention, vegetable intake improved from 0.94 servings per day to 2.02 servings per day (p=0.02). Of the eleven subjects in the study, eleven conceded to both performing and feeling better as a result of the nutrition intervention. The present study suggests that a nutrition intervention can …

Exploring The Relationship Between Emotional Brain Training, Stress, Depression, Food Addiction, And Weight, Bailey Regina Adams

Theses and Dissertations--Nutrition and Food Systems

Obesity is a complex issue; stress, depression, and food addiction, are several psychological conditions that can accompany an obesity diagnosis. Emotional Brain Training (EBT) was evaluated as a new approach to these conditions. Stress, depression, food addiction, and weight were assessed at baseline, after a seven week active intervention, and after a seven week no contact period. The final sample consisted of 26 obese adults. At seven week assessments, EBT participants experienced significant weight loss (p-value = 0.05) and decreased perceived stress (p-value = 0.035). Food addiction also decreased from 50% to 8.3% (or one participant). At fourteen week assessments, …

Cortisol, Physical Activity, And Weight Loss In A Randomized Clinical Trial, Shawn S. Smith

Theses and Dissertations--Nutrition and Food Systems

Abnormal cortisol levels may be an important factor in the ability of an individual to lose weight and maintain weight loss. This study examined overweight and obese individuals who participated in a weight loss program. Cortisol, physical activity, and weight loss were measured at regular intervals and examined for possible relationships

Exploring New Approaches For Weight Loss Maintenance: Intuitive Eating And Emotional Brain Training, Joy Ann Vaught

Theses and Dissertations--Nutrition and Food Systems

While traditional behavioral weight loss programs have been successful at producing weight loss, weight maintenance is difficult to achieve. Addressing stress, one major contributing factor in weight gain, may be a potential solution. The purpose of this study was to test a stress-management program (EBT) for changes in weight and blood pressure, and maintenance of those changes. Obese adults (N=33) were randomized to two weight loss groups for a seven-week intervention and a seven-week follow-up period: an intuitive eating group or a stress management group. The intuitive eating group did not have any statistically significant changes in weight or blood …

Science Classics, Mark Masthay

Chemistry Faculty Publications

An essay on the impact of the works in the Imprints and Impressions: Milestones in Human Progress, an exhibition of rare books from the collection of Stuart Rose. Exhibition was held Sept. 29-Nov. 9, 2014, at the University of Dayton.

Bay Area Student Involvement In The Environmental And Food Justice Movements: A Narrative Of Motivations, Experiences, And Community Impact, Laura E. Solof

Doctoral Dissertations

Many California public school students lack exposure to any formal, academic curriculum that emphasizes environmental awareness and activism. This may result in a population of adults who believe they know more about the environment than they actually do, lack the skills to compete in an expanding green job market, lack creativity and the ability to problem-solve, suffer from obesity, depression, anxiety, and attention disorders, and unknowingly contribute to the ever-increasing problems of air and water pollution, land and habitat destruction, and other environmental injustices. Community organizations and university programs are filling this much-needed gap in student environmental education, as they …

Counterproductive Work Behaviors, Justice, And Affect: A Meta-Analysis, Megan Cochran

Electronic Theses and Dissertations

Counterproductive work behaviors (CWBs) are an expensive phenomenon for organizations, costing billions of dollars collectively each year. Recent research has focused on justice perceptions as predictors of CWBs, but little research has been conducted on the specific types of counterproductive work behaviors (i.e., sabotage, withdrawal, production deviance, abuse, and theft) that result from specific organizational justice perceptions (i.e., distributive, procedural, interpersonal, and informational) and the mediating effect of state affect. The current paper meta-analyzed the relationships between justice, CWB, and state affect and found that justice was negatively related to dimensions of CWB and state positive/negative affect were negatively/positively related …

The Rehabilitative Benefits Of A Golf Clinic For Active Duty Military Personnel And Veterans With Disabilities: The Enhancement Of Self-Efficacy And Health-Related Variables, Marcel H. Flores

Doctor of Psychology (PsyD)

Self-efficacy is associated with a person’s level of confidence in adequately performing tasks, and has implications for health behaviors among persons with disabilities who are at higher risk for poor physical and mental health than the general population. Prospective research studies investigating the therapeutic benefits of sports for enhancing self-efficacy, particularly among persons with disabilities, are few. The following prospective study investigated the benefits of adaptive golf for increasing self-efficacy among active duty military personnel and veterans with disabilities, as well as its impact on their physical and mental health.

The study enrolled 41 participants of whom 13 completed an …

Effects Of Crop Residue Burning On Aerosol Properties, Plume Characteristics, And Long-Range Transport Over Northern India, D. G. Kaskaoutis, S. Kumar, D. Sharma, Ramesh P. Singh, S. K. Kharol, M. Sharma, A. K. Singh, Atinderpal Singh, D. Singh

Mathematics, Physics, and Computer Science Faculty Articles and Research

Aerosol emissions from biomass burning are of specific interest over the globe due to their strong radiative impacts and climate implications. The present study examines the impact of paddy crop residue burning over northern India during the postmonsoon (October-November) season of 2012 on modification of aerosol properties, as well as the long-range transport of smoke plumes, altitude characteristics, and affected areas via the synergy of ground-based measurements and satellite observations. During this period, Moderate Resolution Imaging Spectroradiometer (MODIS) images show a thick smoke/hazy aerosol layer below 2-2.5 km in the atmosphere covering nearly the whole Indo-Gangetic Plains (IGP). The air …

Whole-System Agricultural Certification: Using Lessons Learned From Leed To Build A Resilient Agricultural System To Adapt To Climate Change, Mary Jane Angelo, Joanna Reilly-Brown

University of Colorado Law Review

This Article proposes a novel approach to addressing global climate change's impacts on agricultural production and food security. The climate change crisis is the most significant environmental issue facing our planet. The changes predicted to occur as the earth's climate warms include significant impacts to agriculture. At the same time that the planet is undergoing dramatic climatic changes, the global population is increasing, and economic development in many parts of the world is exerting increased demand for a greater and more diverse supply of food. The relationship between climate change and agriculture is a close and complex one, as the …

A Study Examining The Effectiveness Of A Sensory-Based Feeding Group For Children With Problematic Eating Behaviors, Laura Notch, Brionna Simenson

Occupational Therapy Capstones

KEY WORDS: children, problematic eating behaviors, sensory, intervention

OBJECTIVE: The purpose of this pilot study was to analyze the process and outcomes of a routine sensory-based feeding group on a child’s problematic eating behaviors.

METHODS: An experimental pretest-posttest research design was used to gather and analyze quantitative and qualitative data on 4 children who demonstrated problematic eating behaviors. The children participated in a routine 8-week sensory-based feeding group, which utilized sensory activities to promote change. The Children’s Eating Behavior Inventory (CEBI) and the Feeding Intake Form (FIF) were completed through parental report prior to and upon completion of the intervention. …

Isoflupredone Acetate As Ancillary Therapy For Bovine Respiratory Disease In High-Risk Stocker Calves, Claire Crews, Jeremy Powell, Elizabeth Kegley, Jana Reynolds, Pete Hornsby

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

Bovine respiratory disease (BRD) is the most prevalent and devastating disease in U.S. feedlot cattle. This study evaluated the use of isoflupredone acetate in the treatment of BRD. Crossbred male beef calves (n = 192; body weight = 221 ± 3.9 kg) were acquired in two blocks from regional auction markets and transported to the University of Arkansas Stocker and Receiving Cattle Unit. Calves were observed daily for signs of respiratory illness. Antibiotic treatment was administered if calves displayed signs of respiratory illness and rectal temperature was ≥40 °C. Calves (n = 72) requiring antibiotic treatment were assigned randomly to …

Palatability Of Teff Grass By Horses, Rachel R. Cummins, Kenneth Coffey, Nancy Jack, Kathleen Jogan, Edward Gbur, Robert Rhein, Dirk Philipp, Melissa Adams, William Smith, Katherine Clayton

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

Most forages commonly used to feed horses have potential detriments including blister beetles or excessive fiber concentrations. Teff grass (T), a warm-season annual forage, has the potential to be a good alternative for horses because of its lack of observed disorders. Our objective was to compare preference by horses for T harvested under different conditions with that of bermudagrass (B) harvested at two maturities. Six different forages were evaluated: T harvested at the late vegetative stage (TLV), at late bloom but that incurred 33 mm of rainfall between mowing and baling (TLBR), with caryopsis visible (TES), or at soft dough …

The Influences Of Poultry Litter Biochar And Water Source On Radish Growth And Nutrition, Julia Allen, David E. Longer, Edward E. Gbur, Lichen Hao

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

Many row-crop fields today have declined in soil fertility due to poor management practices and overuse of pesticides. Under these conditions, plant nutrient uptake can be sub-optimal. There are several soil amendments that can be used to improve soil quality and plant growth. This study focused on the addition of biochar to the soil and the use of structured water to enhance plant growth. Biochar is produced by pyrolysis of organic feedstocks. Previous studies which focused on biochar have shown an increase in plant yield, nutrient availability in the soil, and soil water holding capacity. Structured water is the liquid …

Los Bancos Del Tiempo En España: Combatiendo La Recesión Con La Moneda Social, Marco Martellini

CMC Senior Theses

Un banco del tiempo (BDT) es el nombre formal que se le da a unas instituciones comunitarias que operan con horas de tiempo personal y laboral como moneda oficial. Son sistemas organizados de moneda social que permiten a sus usuarios intercambiar su propio tiempo y destreza en forma de créditos de servicio. La unidad de moneda es una hora de trabajo. Los BDT son parte de la categoría de moneda alternativa social y representan una evolución moderna de entidades clásicas como los trueques.

Los BDT valoran conceptos como compartir, igualdad y mutualismo. Así, funcionan como un sistema alternativo a los …

Developing A Lifestyle Modification Toolkit To Prevent And Manage Hypertension Among African American Women, Julia Ugochi Ugorji

Walden Dissertations and Doctoral Studies

Hypertension is a global public health issue affecting many people in the United States. African American women remain the highest in percentage by race and ethnicity for developing hypertension with poor risk awareness. Hypertension has costly implications for the health care system. Through lifestyle modifications in the form of a nutrition plan called Dietary Approach to Stop Hypertension and increased physical activity, hypertension could be prevented. Among African Americans, the incidence of hypertension increases in their late thirties. The purpose of the project was to develop a toolkit of resources for African American women between the ages of 20 to …

Oral Health Literacy Of Parents And Dental Service Use For Children Enrolled In Medicaid, Angel Smith

Walden Dissertations and Doctoral Studies

Many people in the United States have untreated dental disease due to a lack of dental insurance, a lack of oral health knowledge, and a lack of priority placed on dental health. Despite an increase in dental service use by Medicaid recipients as a result of local programs, children enrolled in Medicaid often have low rates of use of dental services. Using the health literacy framework of the Paasche-Orlow and Wolf (POW) model, the purpose of this study was to explore to the relationship between oral health literacy of parents and dental service use for children enrolled in Medicaid and …

Perception Of Childhood Obesity And Support For Prevention Policies Among Latinos And Whites, Douglas M. Puricelli Purin, Leah Frerichs, Sergio Costa, Amelie G. Ramirez, Terry T.-K. Huang

Publications and Research

A cross-sectional survey was administered to Latino and White residents of Omaha, NE, to assess perception of the childhood obesity problem, attribution of responsibility, and support for obesity-related policies. The sample included 40.8% () Latinos and 59.2% () Whites. Among Latinos, 25% did not see childhood obesity as a problem, compared to 6% of Whites (). This difference persisted after adjusting for age, gender, and education level (odds ratio (OR) 2.10, 95% confidence interval (CI) 1.07–4.14). Latinos were more likely to agree that government was responsible for addressing childhood obesity compared to Whites (OR 2.81, 95% CI 1.82–4.35). Higher support …

A Whole Grain Education Program For Older Adults: Its Effectiveness On Older Adults' Knowledge And Intake Of Whole Grains And Its Implications For Use With Younger Adults, Kristin Emily Davis

Master's Theses and Capstones

The average adult in America eats less than one serving of the recommended three serving minimum of whole grains each day. Consumption of whole grains in older adults is particularly low; consumption in college students is even lower. This pilot study investigated the effectiveness of a three-session nutrition education program, entitled "Is It Whole Grain?" to improve older adults knowledge, identification and consumption of whole grains. Based on the analysis of pre- and post- intervention whole grain questionnaire responses from 157 older adults, aged 60 or older, residing in New Hampshire and Iowa, significant improvements in older adults' knowledge and …

Effects Of Ground Flaxseed Supplementation On Animal Production And Milk Fatty Acid Profile In Organically-Certified Lactating Jerseys During The Grazing Season, Brianna Jeanette Isenberg

Master's Theses and Capstones

The objective of this thesis was to evaluate the effects of supplementing a pasture-based diet with ground flaxseed (GFLAX) on milk production and composition, blood parameters, digestibility, ruminal characteristics, nitrogen excretion, methane (CH4) and carbon dioxide (CO2) production, and income over feed cost (IOFC). Twenty organically-certified lactating Jerseys were blocked by milk production and days in milk (DIM) and randomly assigned to 1 of 2 treatments: 1) control (soybean meal and ground corn grain as 10% of total diet dry matter (DM) or 2) GFLAX as 10% of total diet DM. Treatments were top-dressed onto a 25% mixed grass-legume baleage, …

A Developmental Disabilities Program: A Proposed Education Program For Direct Support Professionals, Yurlene Sales Dela Cruz

Walden Dissertations and Doctoral Studies

Nurses can play integral role in collaborating with community leaders and identifying health promotion strategies, such as physical activity and nutrition classes, for people with developmental disabilities (DD). This study identified a role that nurses can establish among Direct Support Professionals (DSPs) who serve important functions in the daily supervision and care of clients with DD. The data reviews from the archival results from Association of Individual Development Health Matters Assessment Reports in August 2012 and September 2013 indicated DSPs' need for further training in their roles as health instructors. The Health Matters Assessment Report in 2012 indicated low scores …

Contents, Discovery Editors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

Developing Genetic Tools For Geobacillus, Brittany Artale

Honors Theses and Capstones

Bacillus and Geobacillus are the primary bacterium used in biotechnology industries due to their ability to excrete extracellular materials such as proteins, enzymes and other byproducts. Bacillus subtilis, has a well-characterized competence machinery, giving way to characterized genetic tools. However, a significant problem associated with working with Bacillus is the regulation of endospore formation. An alternative to Bacillus is Geobacillus, a thermophilic bacterium. Thermophiles offer significant advantages over other bacteria as host organisms in biofuel, bioremediation, and biocatalyst processes. However, the genetic tools and competency associated with Geobacillus is still unknown. Through, genetic engineering the ability …