Digital Commons Network^™

Effect Of Feeding Zilpaterol Hydrochloride For 20 Days To Calf-Fed Holstein Steers With A 3 Or 10 Day Withdrawal Period Antemortem On Carcass Characteristics And Tenderness, Andrew D. Hosford

Master's Theses

The effect of feeding Zilpaterol hydrochloride (ZH) with a 3 or 10 d withdrawal (WD) period to calf-fed Holstein steers (N=2993) on carcass characteristics and tenderness were evaluated in a feed lot experiment. Cattle were fed 0 or 8.3 mg/kg of ZH for the final 20 d of the feeding period, each treatment level was assigned a WD period of either 3 or 10 d. Treatment groups consisted of Control 3 d WD (C3) and 10 d WD (C10), and ZH fed 3 day WD (Z3) and 10 d WD (Z10). Cattle were slaughtered at a commercial facility, carcasses chilled …

A Comparison Of Analytical Methods For Quantifying Denatured Whey Proteins And Their Correlation To Solubility, Michelle D. Allen

Master's Theses

Protein structure affects the bioactivity and functionality of whey protein ingredients in food systems. Bioactivity of whey proteins and their derivatives are highly dependent upon primary, secondary and tertiary structure. The degree of denaturation of whey proteins is an important factor for determining how whey protein ingredients will perform in a food system. Several analytical methods have been developed to quantify protein denaturation of whey proteins. The goal of this project was to use a variety of analytical methods to quantify whey protein denaturation and to evaluate the correlation of denaturation to the functionality of whey protein powders.

The objective …

The Effects Of Hiking Pole Use On Physiological Variables And Rate Of Perceived Exertion While Hiking Uphill, Sunny Blue Atchison

Master's Theses

An increasing amount of hikers have added hiking poles to their outings to aid in reducing fatigue of the lower body and enhance stability. However, very little research has been conducted on the use of poles during continuous uphill hiking. The purpose of this study was to investigate the effect of pole use under field conditions on the rate of perceived exertion, physiological variables [oxygen consumption (VO2), heart rate (HR), non-protein respiratory exchange ratio (RER), & total energy expenditure (TEE)], and time to completion during a 1.68 km continuous uphill (12.6% grade) hike. Ten male and ten female (Mean age …

Effects Of Recycled Water On Landscape Plants, Casey R. Miranda

Master's Theses

ABSTRACT EFFECTS OF RECYCLED WATER ON LANDSCAPE PLANTS Casey Ray Miranda Recycled water is water that has been previously used, has suffered a loss of quality, and has been properly treated for redistribution (Wu et al. 2001). The use of recycled water as an alternative to fresh water in the landscape can have positive and negative effects. Experimentation on 40 different plant species during a 32 week period (2 phases of 16 weeks), was conducted to analyze the effects of recycled water irrigation on the appearance of landscape plants. Each species of plant was planted into 10 individual number 2 …

Environmental Variables Influencing The Severity Of Pierce's Disease In California Grapevines, Christopher James Boisseranc

Master's Theses

This project was designed to correlate environmental variables with the development of Pierce’s Disease (PD), an infection caused by the gram negative bacterium Xylella fastidiosa (Xf), in grapes (Hopkins et al. 2002). PD is one of the most difficult crop pathogens to manage because it is vectored by insects and its continued presence in the vine is usually fatal. PD is influenced by the interaction of host, disease and vector, and probably many other environmental variables. The general objective was to study and identify the most important variables involved in the expression of Pierce’s Disease.

Over a two year period, …

Effects Of Nitrogen And Potassium Fertilizer On Willamette Spider Mite (Eotetranychus Willamettei) (Acari: Tetranychidae), Whitney Ann Geddes

Master's Theses

The spider mite family (Tetranychidae) is a well known pest group in agriculture. Within this family, Willamette spider mite (Eotetranychus willamettei) causes physical harm and potential damage to grapevines (Vitis vinifera) along the central and north coast of California as well as Washington and Oregon. Willamette spider mite prefers cooler climates and feeds by puncturing the plant leaf tissue; therefore removing plant nutrients in the early stages of plant growth. Amending soils with fertilizer is a common cultural practice used in commercial vineyards, but no study has documented the interaction between the effects fertilizer concentrations have on Willamette spider mite. …

Growth Hormone Alters Components Related To Differentiation, Metabolism And Milk Synthesis And Secretion In Mac-T Cells, Tasha Lynn Johnson

Master's Theses

The mammary alveolar cell-T (MAC-T) cell line is able to uniformly differentiate and secrete casein proteins in response to dexamethasone, insulin and prolactin and is extensively used to study bovine mammary epithelial cell function. Growth hormone (GH) has been shown to increase milk protein synthesis both in vivo and in mammary cell models, and induce cytoskeletal rearrangement in 3T3 fibroblast cell line and a Chinese hamster ovary (CHO) cell line. Few studies have focused on identifying the mechanisms involved in differentiated MAC-T cells’ response to GH. We tested the hypothesis that MAC-T cells would respond directly to GH and that …

Development Of A Proposal For A Program Of Post-Rehabilitation Conditioning In A Privately-Owned Commercial Setting, Starlene A. Marshall

Master's Theses

Abstract

Development of a Proposal for a Program of Post-Rehabilitation Conditioning in a Privately-Owned Commercial Setting

Starlene Marshall

May, 2010

Chronic disease is a serious health problem that can be debilitating or even life threatening. Inactivity has been identified as a major contributor to the burden of disease. More than 50% of American adults are not regularly physically active. Moreover, physical activity is beneficial in the treatment of persons with chronic disease and disability (ACSM's Guidelines, 2010; NCCDPHP, 2004). Post-Rehabilitation Programs are a growing concept in the medical community and fitness industry. Post-rehab conditioning programs encompass: certification, collaboration with the …

Differences In Aerobic Response To Wheelchair Locomotion, David Pomfret

Master's Theses

The purpose of this study was to explore the differences in the aerobic response to wheeling between wheelchair dependent individuals and able-bodied individuals of similar genders and ages. Five wheelchair dependent men (WC) and five able-bodied men (AB) performed a 13 minute wheeling test (5 min. at rest, 8 min. wheeling) at 4.0 km∙hr-1. Heart rate (HR) and VO2 were recorded using a Vmax ST system during the constant speed test. There was no significant difference in HR or VO2 between the two groups during rest. Both HR and VO2 were higher for WC during exercise. The mean METS during …

Consumers And Benefits Of Genetically Modified Vegetables, Megan Carter Judge

Master's Theses

With the adoption of biotechnology in many agricultural products with first-generation biotechnology traits such as increased pest resistance, greater herbicide resistance, and increased yields the growers have accepted them. The next wave of biotech crops have second-generation traits, such as improved nutrient content, extended shelf life, reduced pesticide and herbicide application (a consumer demanded trait), and better taste. Will these consumer benefits offset any concern that the consumer has regarding biotechnology? What are those benefits and how should the information be communicated to the consumer?

Three focus groups give insight to the proposed questions. The focus groups were done in …

Building A Bridge Between Physical Therapists And Fitness Professionals: The Development Of A Business Plan For San Luis Sports Therapy Clinics, Ashley August Fittz

Master's Theses

The purpose of this project was to create a business plan for a profitable, self-sustaining, program to build a bridge between physical therapists and fitness professionals.

The Quick Fit Program was a new service for the existing business San Luis Sports Therapy. The program was designed to be implemented within each of the company’s physical therapy clinics in California using existing personnel and resources. The Quick Fit Program is one way in which physical therapy practices can diversify the services they offer to keep pace with the changing landscape of healthcare.

Clients in the Quick Fit Program would receive an …

Assessing Body Composition Among Male Collegiate Runners And Swimmers Using Dual-Energy X-Ray Absorptiometry (Dxa), Christopher Patrick Borgard

Master's Theses

This observational study investigated whole body and regional differences in bone mineral density and soft tissue amounts (fat mass versus lean mass) among collegiate runners and swimmers using dual energy X-ray absorptiometry (DXA) for body composition measurement. A data subset was gathered for post-hoc analysis on a group of Caucasian male Cal Poly swimmers (n=20) and Cal Poly track and field runners (n=20) of similar age (18-25 years) and race. In addition to their sport-specific training, both teams had engaged in free weight training and running for approximately 12 weeks prior to their DXA scans. Group mean values for total …

Athletic Trainers' Comfort And Competence In Addressing Psychological Issues Of Athletes, Gina Marie Biviano

Master's Theses

The purpose of this descriptive study was to determine the frequency with which athletic trainers address certain psychological issues related to injury and non-injury-related psychological issues with their student-athletes, their comfort and competence level with these discussions, and referral patterns to other mental health professionals. An electronic survey was adapted from Mann, Grana, Indelicato, O'Neill, and George (2007) and administered through www.surveymonkey.com ®. A random sample of 1,000 athletic trainers (ATs) who were members of the NATA were invited to participate, which yielded a response rate of 31.1%. More than half (n=170, 55.7%) of all subjects had completed 1-2 psychology …

Health Information Version 2.0: Female Students In Cyberspace, Sonia Easaw

Master's Theses

The arrival of the Internet, one of the greatest mass media vehicles of our time, has presented a wide platform for the dissemination of health information to the American public. A majority of adults in the United States search online for information about various health and medical topics, yet a particular portion of the general public, namely college students, searches for health information online at a higher rate than the general population. Female college students especially have cause to seek information about particular women's health matters that are relevant to their age group.

This study reveals new details about the …

The Russian Émigré In America: Translating And Transcending Exile In Vladimir Nabokov's Pnin And Pale Fire, Yelena N. Severina

Master's Theses

This thesis investigates how Vladimir Nabokov's experience as an exiled writer in America serves as a model for the protagonists of Pnin(1957) and Pale Fire(1962), two of Nabokov's English-language novels in which exile is a central theme. Although the protagonists, Pnin and Kinbote, are both true exiles, they illustrate markedly different responses to their dislocations; read in tandem, the novels constitute Nabokov's analysis of exile, his lament over its painfulness, and his transcendence of exile through art. Chapter One looks at Nabokov through the lens of exile while establishing fundamental theoretical concepts and terminology. Chapters Two and Three …

Psychological And Behavioral Correlates Of Freshman Bmi Change, Rebecca Kathleen Jackl

Master's Theses

This observational research examines body-mass-index (BMI) changes in multicultural freshmen attending a large public urban university. It explores psychological and behavioral factors associated with gains and loss in BMI. The study utilizes an online survey distributed in September 2008 and again in December 2008. All3,509 freshmen were eligible to participate. Initial survey response rate was 29%; in December, 40% of initial respondents completed both surveys (n = 355). A subset of respondents (n = 65) had height, weight, and body composition measured to compare to self-reported data. Mean BMI change was a gain of 0.23 units, but those who gained …

An Abridged History Of The Orange, Robert Aho

Master's Theses

The orange is more than a fruit that one can purchase at a supermarket or pick from the tree in the yard. The fruit started as an object of exoticism. It was later transformed into a symbol of purity. Eventually the orange became a vehicle for humanity to demonstrate its mastery over nature. In modern society, oranges are the foundation of enterprises, ones that sustain entire regions of the world. This thesis presents a series of essays, each using aspects of art history and geography, to describe the history of the orange. The intention of this thesis is to introduce …

Recess Policy In Chicago Public Schools: 1855-2006, Laura Ann Wurzburger

Master's Theses

The history of Chicago Public Schools (CPS) recess policy has been marked by long periods of consistency. However, in the last two decades the history of recess policy has changed significantly. Beginning in the mid-19th century, the Board of Education required one to two recess sessions per day in primary or elementary schools. This is in stark contrast to the 1991 policy which eliminated recess entirely for seven years. In 1998 there was another policy shift which is still in effect today. This policy allows individual principals and their local school councils to determine how to allocate their daily schedule. …

Undergraduate Music Student Stress And Burnout, Helen Jane Orzel

Master's Theses

Burnout is fatigue and diminished interest caused by long-term stress. It is characterized by emotional exhaustion, depersonalization, and lack of personal accomplishment. In the university music atmosphere, stress and burnout are prevalent and accepted as part of the culture. Symptoms and causes of general stress and burnout have been well researched, but much less has been presented on college musicians' burnout, let alone how to deal with it. This study examines the sources of stress, burnout, and ways of coping for undergraduate music students.

A questionnaire with both quantitative and open-ended questions was administered during the 2009 spring semester. Participants …

Morphological Development Of The Axial Skeletons Of Esox Lucius And Esox Masquinongy (Euteleostei: Esociforms), With Comparisons In Developmental And Mineralization Rates., Amanda Maria Burdi

Master's Theses

Developmental morphology of the axial skeleton of Esox lucius (i.e., northern pike and type species) and E. masquinongy (i.e., muskellunge) was investigated. More than 1,000 specimens were examined ranging in size from approximately 10 mm notochordal length (NL) post-hatching juveniles to over 80 mm standard length (SL) foraging sub-adults. Results show that regardless of individual variation, the relative sequence of bone formation and mineralization is consistent between the two species. This consistent developmental pattern enabled construction of an ontogenetic staging scheme of eight developmental stages, each characterized by one defining criterion. The first appearance in cartilage and/or first sign of …

The Response Of Zigadenus Fremontii To Variation In Fire Regime, Shannon Elizabeth Dinis

Master's Theses

California's chaparral shrub communities are naturally exposed to dry-season fire. It could be reasoned that prescription burns set during the wet season by land managers would have more detrimental effects on plant regeneration than dry season fires because wet season burns are more likely to kill newly emergent seedlings and damage newly emerged leaves of mature plants. Six field sites with flowering Zigadenus fremontii, an herbaceous perennial geophyte common to chapparal and part of the post-fire bloom, were established at Henry W. Coe State Park in Nothern California. Three sites were part of the September 2007 Lick Wildfire and …

Assessment Of First Aid Knowledge And Decision Making Of Coaches Of Youth Soccer, Lynn Castro

Master's Theses

The purpose of this study was to assess the first aid knowledge of coaches of youth soccer and to assess the decision making ability of those coaches in hypothetical athletic situations. The study investigated coaches with passing scores on the First Aid Assessment test (FAA) and first aid and CPR certification; years of coaching experience and scores on the FAA; the difference between years of coaching experience and return to play; the relationship between first aid and CPR certification and education level and the scores on the FAA and education level. Coaches completed a FAA test, Game Situation Data Sheet …

Synthesis And Evaluation Of Silica Hydride-Based Fluorinated Stationary Phases, Kavita Vipool Prajapati

Master's Theses

Silica-based fluorinated bonded stationary phases have shown enhanced selectivity with altered elution orders for molecules differing in hydrophobicity and hydrophilicity in comparison with C8 and C18 reversed phase columns. Hence, two novel silica hydride-based fluorinated bonded phases have been synthesized using a hydrosilation

procedure to exploit fluorine-based unique selectivity for polar basic metabolites. Bonded moieties have been characterized by elemental and spectral analyses. Silica hydride-based aqueous normal phase (ANP) chromatography has retention behavior similar to normal phase chromatography, except for the use of water as a part of the binary solvent (>60 % acetonitrile : water). In ANP, a …

The Economic Impact In Stanislaus And San Joaquin Counties If A Fruit And Vegetable Processor Left As A Result Of Changes In The Food Processing Byproduce Use Program, Jessica Erin Bylsma

Master's Theses

In 1978, Stanislaus County took a proactive approach to food processing byproduct waste and established the Food Processing Byproduct Use Program. It allows processors to transport byproduct to local producers, where it serves as an alternative input. There is concern that the program negatively impacts local groundwater. The Regional Water Quality Control Board proposed that the County institute water monitoring which would increase program expenses. In response to this proposal, participants investigated the impact of the cost increase and some have concluded that this increase would preclude their continued involvement. They believe the program has allowed them to maintain their …

Analysis Of A Pinus Radiata Seed Stock Field In The Native Año Nuevo Stand In California, Christina Brassey

Master's Theses

This study was a part of the international collaborative IMPACT project, which aims to address the potential threat that the pitch canker disease poses to the use of Pinus radiata D. Don in plantations in New Zealand, Australia, and Chile. A field trial of 264 seedstocks was planted adjacent to a native stand of pitch canker infected P. radiata on the central coast of California, and disease symptom development was recorded over a period of 3 years. The results did not correlate with a greenhouse study of the same seedstocks inoculated with Fusarium circinatum Nirenberg & O'Donnell, the causal agent …

Dissolved Organic Matter Influences The Timing Of Embryonic Development Of The Purple Sea Urchin, Strongylocentrotus Purpuratus., Corbin J. Hodges

Master's Theses

Marine dissolved organic matter (DOM) comprises one of the largest carbon reservoirs on earth and has long been considered a potential energy source for marine invertebrates. The importance of DOM transport has been adequately demonstrated for unicellular organisms, where DOM can meet 100% of an organisms energy needs, but the effects of DOM uptake for marine metazoans are less well understood. In this study, three general areas involving the influence of DOM transport to marine invertebrates were explored. First, we assessed the effects of using seawater exposed to high intensity ultraviolet radiation (UVR) on the study organism; embryos of the …

The Effect Of All-Trans Retinoic Acid And Fatty Acids On Mcf-7 Breast Cancer Cell Progression, David A. Brown

Master's Theses

Vitamin A metabolites and retinoids may slow the progression of breast cancer and elicit anti-neoplastic properties similar to those of omega-3 fatty acids. Studies using animal models show a decrease in the incidence, growth and metastisis of mammary tumors in the presence of specific fatty acids. This effect is also seen with use of retinoids, specifically all-trans retinoic acid (AtRA). Thus, fatty acids may also alter retinoid homeostasis in mammary carcinoma cells (MCF-7s). The potential for inter/co dependency among fatty acids and retinoids is considerable, and here it has been hypothesized that a decrease in cancer progression will occur in …

Impact Of Dietary Arginine On Immunity In Broiler Chicks, Jennifer Lynn D'Amato

Master's Theses

Arginine (ARG) is an immunologic modulator due in part to its role as a substrate for leukocytes. Therefore, the objective of these studies was to evaluate the impact of dietary ARG on ARG utilization in peripheral blood mononuclear cells (PBMC) and thymocytes in broiler chicks as they provide a model that is not confounded by de novo ARG synthesis. Several experiments were performed to measure: 1) ARG transporters as markers of ARG utilization by leukocytes; 2) thymocyte proliferation; 3) PBMC phenotype, and 4) ARG’s impact on the acute phase response (APR). In experiment 1, chicks were fed diets containing 1.20% …

Sex And Microhabitat Influence The Allocation Of Mycosporine-Like Amino Acids To Tissues In The Purple Sea Urchin, Strongylocentrotus Purpuratus, Sarah A. Gravem

Master's Theses

Field surveys of Strongylocentrotus purpuratus demonstrated that concentrations of natural sunscreens, mycosporine-like amino acids (MAAs), were higher in females than males for both gonadal and epidermal tissues, increased in ovaries as spawning season approached, and were influenced by the sea urchins’ microhabitat. Sea urchins occupying burrows, or “pits”, had lower concentrations of MAAs than those outside pits, suggesting a trade-off between physical and UV protection. Overall, UV irradiance did not influence MAA accumulation in gonadal tissues. However, males increased their allocation of MAAs to epidermal tissues in the microhabitat with the highest irradiance. Relative concentrations of individual MAAs were similar …

Development And Formative Implementation Of A Nutrition Assessment And Peer Education Program Based On Dietary Analysis At A California State University, Janay Jelso

Master's Theses

A healthy diet has been established as a key component contributing to an individual’s quality of life. Statistics show that the diet of Americans needs improvement (Guenther et al., 2007) indicating possible lack knowledge of what healthy eating behaviors are. There is an abundance of nutrition misinformation available to the consumer (American Dietetic Association, 2002a). Dietary interventions that provide credible education based on readiness to change behaviors and goal setting have been successful in increasing awareness of what healthy eating behaviors are and changing existing behaviors over time (Ammerman et al., 2002; Evans & Sawyer-Morse, 2002; Gambera et al., 1995; …