Digital Commons Network^™

Evaluating The Impact Of Cetylpyridinium Chloride And Peroxyacetic Acid When Applied To Broiler Frames On Salmonella Spp. And The Quality And Sensory Attributes Of Mechanically Deboned Chicken Meat, Saxon Morgaine Perez

Theses and Dissertations

Broiler frames were treated with antimicrobial solutions of 0.5% cetylpyridinium chloride with CitrilowTM (CPC) or 0.1% peroxyacetic acid (PAA) for contact times of 30 to 120 sec and evaluated for their effectiveness at reducing the incidence of Salmonella spp. on broiler frames and decreasing Salmonellae counts on mechanically separated chicken meat (MSC). MSC samples were evaluated for pH, color, cook loss and protein bind. Results from the preliminary study indicated that 0.5% CPC at 60, 90, and 120 sec achieved higher reduction of Salmonellae on whole broiler frames than CPC at 30 sec or any PAA treatments. In contrast, PAA …

An Automated Study Of Antioxidant Potentials Of Polar Extract Of Turmeric As Influenced By Ultraviolet Radiation, Nagham Salah Alawadi

Theses and Dissertations

Turmeric polar extract (TPE) was obtained by dielectric-precipitation of turmeric slurry and found to contain three proteins with two in the 10-11 KDa range being dominant. Antioxidative activity and persistence (AP) of TPE (5%, w/v) respectively showed 87% and 85% greater generation of alkoxy- and peroxyl radicals compared the non-redox-active buffer alone showing significant (p<0.05) pro-oxidative behavior. Conversely, purified curcumin (CU) (0.1% w/v) was dramatically antioxidative with AA and AP values of 2,828 and 1,129%, respectively, compared to the blank. However, a combination of the two at the same concentration dropped these values to 590 and 389%, respectively, reflecting dramatic dampening of the efficacy of CU. Ultraviolet radiation significantly modulated the efficacy of CU where UVB (300 nm) exposure gave the highest enhancement when limited to five min. Data showed that turmeric contains highly pro-oxidant polar proteins that significantly dramatically diminishes the beneficial antioxidative efficacy of its principal phytochemical, CU.

Underplanted Shortleaf Pine Seedling Survival And Growth In The North Carolina Piedmont, David Kenneth Schnake

Theses and Dissertations

A study was established to evaluate underplanting as a method of reestablishing shortleaf pine (Pinus echinata Mill.) in the Piedmont Region of North Carolina. Replicated treatment plots were harvested to retain 0, 15, 30, or 45 square feet of basal area per acre. Bareroot and containerized stock with small and large plugs were established within the treatment plots. Large plug seedlings achieved the highest first year survival followed by the small plug and bareroot seedlings. Underplanted seedling growth was inversely related to residual overstory density after two growing seasons. Large plug seedlings achieved the greatest height and diameter growth, followed …

Student Support Services For Autistic Students Transitioning To Community Colleges, Arlitha Williams-Harmon

Theses and Dissertations

This study researched the prevalence of Autism Spectrum Disorders (ASD) and the potential impact ASD on postsecondary human capital development in California Central Valley. The problem of the study was to determine the perceptions of parents, high school educators, and community college educators’ regarding awareness of and satisfaction with college transition support services for ASD students. The study also examined respondent’s opinions regarding delivery modes and importance of support services topics for ASD high students transitioning to community colleges. The participants in the study included parents, high school educators, and community college educators in California’s Tulare and Fresno Counties. The …

Influences On Fruit And Vegetable Consumption In College Freshmen 18-24 Years Old At Mississippi State University, Laura Coats

Theses and Dissertations

Research has demonstrated that >5 servings of fruits and vegetables (F&V) per day improve health. Eighty-three percent of 18-24 year olds, including college students, do not meet recommendations. For the study, freshmen at MSU were recruited. Included freshmen (n=132), 6 percent, received a sociodemographic and intake survey. Eighty subjects, 61 percent, completed the survey. Of these subjects (n=33), 41 percent, participated in focus groups. X2 analyses assessed intake and sociodemographics. Paired t-test compared BMI and intake. Focus group analyses determined additional influences. Results indicated nine percent of subjects consumed >5 servings, and 23 percent of subjects consumed >3 servings. >3 …

Intake, Nutritive Value And Digestibility In Holstein Heifers Fed Diets Supplemented With Peanut Hay (Arachis Hypogeal L), Diniwe Grace Phiri

Theses and Dissertations

This study was conducted to measure the intake; nutritive value and digestibility of peanut hay (Arachis hypogaea L.). Fourteen Holstein heifers (BW= 408 plus/minus 32 kg; Age = 15.4 months plus/minus 0.5) were randomly allocated to two diets: peanut hay (PH) and corn silage (CS) adlibtum for 26 days. The PH consisted of 66:34 forage: concentrate (F:C) and CS diet contained 57:43 F:C ratio. Peanut hay at 91.8% DM contained 8% CP, 64% NDF, 51.9% ADF and 8 % ash. DMI and CP was not different across the treatment diets (P>0.05). NDF and ADF intake was different between the …

Investigating The Utility Of Age-Dependent Cranial Vault Thickness As An Aging Method For Juvenile Skeletal Remains On Dry Bone, Radiographic And Computed Tomography Scans, Kelly R. Kamnikar

Theses and Dissertations

Age estimation, a component of the biological profile, contributes significantly to the creation of a post-mortem profile of an unknown set of human remains. This goal of this study is to: (1) refine the juvenile age estimation method of cranial vault thickness (CVT) through MARS modeling, (2) test the method on known age samples, and (3) compare CVT and dental development age estimations. Data for this study comes from computed tomography (CT) scans, radiographic images, and dry bone. CVT was measured at seven cranial landmarks (nasion, glabella, bregma, vertex, vertex radius, lambda and opisthocranion). Results indicate that CVT models vary …

Fiscal Management Practices And Quality Programming In Early Childhood: The Impact Of Administrator Preparation, Charles E. Allgood

Theses and Dissertations

The early childhood administrator is tasked with overseeing all operations within the early childhood program. Operational functions include functions traditionally associated with education including the design and implementation of curriculum, creating and maintaining the learning environment, and ensuring the health and safety of children enrolled in the program. The administrator of the early childhood program is also tasked with other functions including human resource functions, budgeting, as well as income and cost management. Additionally, the administrator should be an advocate within public policy concerning early childhood education. Research has acknowledged the functions associated with the early childhood administrator role. In …

Evaluation Of Soil And Forage Nutrient Levels In Habitats Of Gopher Tortoises (Gopherus Polyphemus) In South Mississippi, Bridget Nicole Hodges

Theses and Dissertations

Populations of federally-listed gopher tortoises (Gopherus polyphemus) are in decline in Mississippi. Soil and forage quality may be linked to their health and recruitment. To gain a better understanding of existing soil and forage quality conditions on areas inhabited by gopher tortoises, I investigated soil chemistry parameters, forage nutrients, and plant community characteristics from 2012 to 2013. These parameters were collected on 7 soil and habitat management treatment types in uplands on public forest lands in south Mississippi. Soil sample analyses indicated that most pH levels in soils were acidic (pH < 5.0) to strongly acidic (pH < 4.5). Greatest soil calcium levels were detected on growing season burn, moderately suitable soil areas, and soil phosphorus levels were greatest on mowed, less suitable soil areas. Greatest levels of nutrients were detected at 0 – 10 cm soil depths. Weak, positive associations were detected between soil pH and soil calcium and magnesium levels, while weak, negative associations were detected between soil pH and soil phosphorus levels. Greater levels of calcium, magnesium, and phosphorus were detected in plants collected in mowed, less suitable soil areas. Cacti, forbs and, legumes were found to have greatest nutrient levels of all the plant growth forms. Moderate, positive associations were detected between soil pH and calcium levels in legumes and vines. Weak, positive associations were detected between soil pH and forage calcium levels in forbs and native grasses. Very weak, positive associations were detected between soil pH and forage phosphorus levels in vines. I found greatest species richness and percent coverage of legumes and forbs on moderately suitable soils that received growing season fire; whereas, greater species richness and percent coverage of native grasses were detected on moderately suitable soil regardless of season of burn. Greatest percent coverage of cacti (puntia sp.) and greatest quantities of above-ground plant biomass were detected on mowed, less suitable soil areas. This information can be valuable to habitat evaluation and management for gopher tortoises.

Relationships Between Texas Tortoise Carapace Length, Home Range Size, And Habitat Selection At Sites With Invasive Grass, Kiley V. Briggs

Theses and Dissertations

Invasive grasses in south Texas have the potential to negatively impact the threatened Texas tortoise (Gopherus berlandieri) by reducing the availability of preferred foods (forbs) and may cause tortoises to travel farther, lead to reduced carapace length, and reduce the availability of refugia from heat stress. I used compositional analysis, regression, and ANOVA to explore relationships between invasive grasses and habitat use, home range size, and carapace length, as well as compared daily maximum temperatures between tussocks of an invasive and native grass. Forbs were ranked higher in use over invasive grasses in compositional analysis, but not strongly so (p …

Jatropha Curcas Protoplast Isolation And Inhibitory Effects Of Culture, Christopher S. Lukaszewski

Theses and Dissertations

Improvement on the sub-tropical plant Jatropha curcas may increase the use of this drought tolerant oilseed crop for the production of biodiesel. One of the methods for enhancing a species is through genetic manipulation of the protoplast. Isolating protoplasts is challenging and culturing has many obstacles similar to those seen in tissue culture, such as oxidative browning. Successful isolation of J. curcas leaf protoplasts resulted in an average of 3.23 x 106 viable protoplasts/mL. However, protoplasts diminished within 2 days after culturing. A review of the potential solutions used for overcoming the inhibitory effects of culture may reveal further insight …

The Canción Cannibal Cabaret And Other Songs: Feminists Of A Dystopian Future Repurpose A Punk Past, Amalia L. Ortiz

Theses and Dissertations

This collection of poem-songs is an experiment in combining poetry and theatre. Focused on the theme of revolution and inspired by current issues of social justice, the manuscript is set in a not-so-distant future. After an environmental apocalypse, a refugee raised under an oppressive state, La Madre Valiente studies secretly to become the leader of a feminist revolution. Her emissaries roam the land telling her story, educating others, and enlisting allies in revolution. My goal is to transform the text into live theatrical performances so that the manuscript serves both as a poetry collection and as a script. Some critics …

Handcrafted Electrocorticography Electrodes For A Rodent Neural Activity, Nishat Tasnim

Theses and Dissertations

Electrocorticography (ECoG) is a minimally invasive neural recording method that has been extensively used for neuroscience applications. Although many neural recording methods exist, ECoG provides a combination of stability, high spatial and temporal resolution with chronic and mobile capabilities. This paper presents an animal study using a low cost and simple handcrafted ECoG electrode that is made of commercially accessible materials. The study is performed on a Lewis rat implanted with a handcrafted 32-channel non-penetrative ECoG electrode covering an area of 3 x 3 mm 2 on the cortical surface. The ECoG electrodes were placed on the motor and somatosensory …

Beyond The Millennium Development Goals: An Evaluation Of The War On Hiv / Aids In Kenya, Robert G. Nyaga

Theses and Dissertations

HIV/AIDS remains a threat to Kenya and other developing nations. This thesis aimed at assessing the HIV/AIDS situation in Kenya by examining the knowledge of Kenyans towards infection and spread HIV/AIDS, attitudes towards people living with HIV/AIDS, involvement of community opinion leaders in the HIV/AIDS campaigns, sharing of HIV/AIDS information, and government efforts to control HIV/AIDS. A sample of Kenyans (N= 103) was surveyed and asked to respond to several scales assessing each of the above items. Quantitative and qualitative methods reveal the knowledge and attitudes portrayed by Kenyans and show that, although much has been achieved, there is need …

A Comparative Analysis Of Read 180 And Cultural Literacy On The Reading Achievement And Motivation Of African American Males In An Alternative High School, Clifton F. Nicholson

Theses and Dissertations

Nationwide, increased accountability measures require educational leaders to develop and implement instructional practices that expedite the narrowing of the achievement gap. Legislation in several states allows states to annex low-performing schools. With such pressure, school districts are looking to educational consultants to facilitate the transformation of reading instruction, thereby raising levels of academic achievement. A thorough vetting of these interventions, however, is necessary to determine if the potential benefits can be generalized to other populations.

The purpose of this quantitative, causal-comparative study was to compare the reading achievement and reading motivation of two groups of African American males in an …

Comparing Steady State To Time Interval Measurements Of Resting Metabolic Rate, Chelsea Jayne Irving

Theses and Dissertations

The two most common methods to measure resting metabolic rate using indirect calorimetry are steady state or time interval. Steady state is commonly defined as the first five minutes in which oxygen consumption and carbon dioxide production vary by <10%. A time interval measurement generally lasts 20-60 minutes. Using steady state criteria is often harder to achieve, but many suggest it more accurately measures resting metabolic rate. Our objective was to determine if there were differences between steady state and time interval measurements in a healthy adult population.
Seventy seven subjects were measured for 45 minutes. Inclusion criteria included healthy subjects ages 18-65, excluding pregnant and lactating women. Paired t-tests analyzed differences between measures, and Bland-Altman plots evaluated bias, precision, and accuracy.
Of 77 subjects, 84% achieved steady state, and 95% achieved SS by minute 30. Most differences between steady state and time intervals were statistically but not practically …

Malnutrition And Handgrip Strength In Hospitalized And Non-Hospitalized Children 6-14 Years Old, Kayla Camille Jensen

Theses and Dissertations

Malnutrition is concerning in children because it effects proper growth and development. Handgrip Strength (HGS) has been identified as a diagnostic indicator for identifying pediatric malnutrition but normal reference ranges have not yet been established; therefore, HGS can be used to identify malnutrition but not quantify the degree of malnutrition: mild, moderate, or severe. The aim of this study was to determine if HGS differed between hospitalized and non-hospitalized children and to describe the association between HGS and several parameters including height, weight, body mass index (BMI), and mid-upper arm circumference (MUAC). One hundred nine hospitalized and 110 non-hospitalized pediatric …

A "Big Bang" Versus A "Small Bang" Approach: A Case Study Of The Expeditionary Combat Support System (Ecss) And The Maintenance, Repair, And Overhaul Initiative (Mroi), George B. Lafiguera

Theses and Dissertations

In 2003, the United States Air Force embarked on one of the largest and most comprehensive logistical transformation to delineate the logistics community’s strategy for supporting the warfighter. A key aspect of this campaign plan was to leverage information technology through an enterprise resource planning (ERP) solution called the Expeditionary Combat Support System (ECSS), a “big-bang” approach. In early 2012, the ECSS program was cancelled mainly due to uncontrollable increases in costs and schedule overruns. In late 2012, the Air Force Sustainment Center (AFSC) launched the Maintenance, Repair, and Overhaul initiative (MROi), a “small-bang” approach, to increase enterprise visibility and …

The Effects Of Two Different Resistance Training Protocols With Similar Volume On Muscular Strength, Muscle Thickness, And Fat-Free Mass, Cory Worthey

Theses and Dissertations

The manipulation of exercise volume, intensity, and order is associated with producing different musculoskeletal changes. These resistance training program variables affect mechanical tension and metabolic stress associated with resistance training, therefore affecting strength and hypertrophic outcomes. PURPOSE: The purpose of this study was to examine the effects of two different volume-equated total body exercise protocols over 9 weeks using compound exercises on muscular strength, muscle thickness, and fat-free mass. METHODS: Eight well-trained men were randomly assigned to a hypertrophy-style protocol (HG) performing 3 sets of 10 repetitions with 90 seconds rest between sets (n = 4) or a strength-style protocol …

An Investigation Into B Cells In Peripheral Blood And Gut Associated Lymphoid Tissues In The Red Eared Slider Turtle, Trachemys Scripta, Sarah Marie Marrochello

Theses and Dissertations

As in endotherms, immunity in ectotherms is vital to survival and contributes to the overall fitness of an organism. For reptilians, there are a number of environmental factors, such as temperature, season, and pathogen prevalence, which are known to influence both innate and adaptive immunity. Of particular interest, is the effect of these factors on B cells, a component of adaptive immunity. Reptilian B cells are reported to secrete antibodies, much like their mammalian counterparts, and undergo phagocytosis. The work reported here primarily focused on understanding the effect of environmental temperature, incubation temperature, and nesting season on B cells in …

The Effect Of Whole Body Vibration On Exercise-Induced Muscle Damage And Delayed-Onset Muscle Soreness, Ryan Darin Magoffin

Theses and Dissertations

Current scientific evidence suggests that when whole body vibration (WBV) is used as a warm-up prior to performing eccentric exercise, delayed-onset muscle soreness (DOMS) is mitigated and strength loss recovers faster. These benefits were observed primarily in nonresistance-trained individuals. The aim of this study was to determine if WBV could mitigate soreness and expedite strength recovery for resistance-trained individuals when used as a warm-up prior to eccentric exercise. Thirty resistance-trained males completed 300 maximal eccentric contractions of the quadriceps after warming up with (WBV) or without (CON) WBV. Both CON and WBV experienced significant isometric (27.8% and 30.5%, respectively) and …

Resilience And Internalizing Symptoms Among Adolescent Girls In Residential Treatment: An Evaluation Of Strong Teens, Luke Andrew Marvin

Theses and Dissertations

Strong Teens is an evidence-based social and emotional learning (SEL) curriculum designed to target internalizing disorders by promoting emotional resilience and social competence. In this study, Strong Teens was implemented among 36 adolescent girls during group therapy in a residential treatment center (RTC). A non-equivalent, quasi-experimental wait-list control group design was used. The curriculum was evaluated by tracking the girls' social and emotional knowledge, internalizing symptoms, and resilience from the perspectives of the girls, group therapists, and a supervisor who was blind to the study. Although the results indicated that exposure to Strong Teens was not effective in increasing the …

Association Between Polymorphisms Associated With Major Depression, Cognitive Function, And Stress Regulation And Telomere Length In Older Community-Dwelling Adults And In Older Competitive Athletes, Cynthia Elizabeth Perry

Theses and Dissertations

Many factors detrimental to healthy aging have been proposed including depression, stress, cognitive decline, and telomere shortening. Of specific interest are the genetic factors that may contribute to these factors and subsequently lead to accelerated telomere shortening and aging, namely the Bcl1, 5-HT, DRD2, and ApoE polymorphisms. We sought to: 1) further clarify the role of depression, stress tolerance, and cognitive decline in aging by examining the effect of associated polymorphisms (Bcl1, 5-HT, DRD2, and ApoE) on telomere length in two samples of older adults and 2) determine the difference in absolute telomere length between the two groups. We examined …

Polymer Coated Urea In Kentucky Bluegrass, Jessica Chelise Buss

Theses and Dissertations

Nitrogen (N) is the most commonly over-applied nutrient in urban environments because of the large visual and growth increases. This over-application has led to an increase in the loss of N gas in the forms of ammonia and nitrous oxide, as well as an increase in nitrate leaching to surface and groundwater. Furthermore, excess N results in increased maintenance costs and landfill volume due to increased shoot growth from mowed clipping removal. Polymer coated urea (PCU) has proven to be an excellent source to these losses of N to the environment, but rate and timing parameters need study. A two-year …

Neural Response To Food Cues After Moderate And Vigorous Exercise In Women: A Randomized Crossover Trial, Jillesa Anderson

Theses and Dissertations

PURPOSE: This study examined the effect of different intensities of acute exercise on attention allocation to visual food cues, postexercise energy intake, and subjective measures of hunger in women. METHODS: This crossover study utilized treatment conditions that were randomized and counter-balanced. Fifty-two adult women, 18-29 years, were compared under three separate conditions: no exercise, 45 min of moderate-intensity exercise at 3.9 METs and 22.5 min of vigorous-intensity exercise at 7.8 METs. To measure attention allocation to visual food cues, participants were shown a passive viewing task consisting of a continual stream of pictures of food (high and low calorie) and …

The Effect Of Monetary Reward And Food Type On Motivation Of Untrained Sensory Panelists In Triangle Tests, Jessilee Noel Loucks

Theses and Dissertations

Although human panelists provide unparalleled data, they are prone to bias, which is a primary concern of sensory scientists. Motivational bias is of concern because it determines how much effort a panelist will exert to be consistent, find a difference, or use appropriate descriptors when taking a test. For central location tests, money has become a common motivational device to compensate panelists for their time and effort. Studies have documented that money can change results in sensory testing but have not measured the impact on motivation. Additionally, little research has been conducted on the effect of the test food itself …

Movement Competency's Relationship To Health Related Quality Of Life In Older Adults, Shaun M. Fulton

Theses and Dissertations

The purpose of this study was to investigate the relationship between movement competency and health related quality of life (HRQOL) in adults aged 55 to 75 years. Seventy-eight, male (40) and female (38), subjects completed the study. Their mean (SD) age, height, and mass were 64.9 (5.8) years and 63.6 (4.9) years, 1.8 (.08) m and 1.7 (.07) m, 82.6 (11.8) kg and 70.3 (17.9) kg, for male and female, respectively. Subjects completed several tests in 3 categories: movement competency (Functional Movement Screen^TM [FMS] [all 7 tests], sitting-rising test [SRT]); physical activity level (Physical Activity Scale for the Elderly …

Progress As A Student Teacher: An Autoethnography, Adrielle J. Schneider

Theses and Dissertations

120 Pages

This autoethnographic action-research study was developed over an eight-week student teaching placement at a junior high school in Central Illinois. The participants in the study included my cooperating teacher and university supervisor as well as students in sixth, seventh, and eighth grade art classes. The purpose of this study was to discover how I developed as a classroom art teacher during an eighth-week student teaching placement and to analyze the successes and failures of my teaching methods used during my student teaching placement, which included student centered teaching, the use of visual process diaries, allowing and encouraging mistakes, …

Perceptions Of The Influence Of Black Greek Affiliation On Involvement, Engagement, And Persistence On Black Male Student Success: Differences Between A Historically Black University And A Predominantly White Institution, Eric Dwayne Flowers

Theses and Dissertations

While there is research on the impact of Greek Letter Organization membership on college student engagement and success, the focus is primarily on the experiences of White students with mixed results. The findings in these studies include lower moral and cognitive development and less concern for social issues than their non-Greek counterparts. However, other research has identified potentially positive outcomes associated with Greek membership, including increased opportunities for leadership development and higher levels of student involvement. In particular, participation in Black Greek Letter Fraternities (BGLFs) has consistently been found to be the most popular avenue for African American men as …

An Interdisciplinary Study Of Perceived Benefits, Barriers And Cues To Action Among College Students For Moderate To Vigorous Physical Activity, Daniel Orellano Jr

Theses and Dissertations

This interdisciplinary study examines the perceived benefits, barriers, and cues to action for physical activity, in a sample of 385 men and women college students. Though no significant differences were identified between the genders in their physical activity levels or perceived benefits, barriers, and cues, significant differences were found in the numbers of these different variables as well as types of physical activity among the student participants as a whole. Improving health was found to be the primary perceived benefit for engaging in physical activity whereas school workload and wanting to look physically fit were the primary barrier and cue …