Digital Commons Network^™

Reaction Of Caffeic Acid With Amino Acids, Yonggang Wang

Masters Theses

The reaction of caffeic acid with tryptophan was studied as a model for the reaction of caffeic acid with amino acids in the aquatic environment. Although the autoxidation reaction of caffeic acid in aqueous solution with subsequent dimerization had been previously studied, it was examined as well for comparison purposes. The present studies demonstrate that oxidized caffeic acid would react with tryptophan. The reaction, like the dimerization reaction, was catalyzed by the presence of iron(III) ions at low pH ( <4) and by hydroxide ions at high pH (10). The reaction of caffeic acid with itself yielded six products, four of which were identified by mass spectroscopy as dimers, with the other two being trimers. The reaction of caffeic acid with tryptophan yielded three product peaks. Two of the product peaks had similar retention times to the dimers from the self-reaction of caffeic acid; the third was a new product resulting from the reaction of caffeic acid with the tryptophan.

A mechanism for the reaction of caffeic acid with tryptophan has been proposed. This mechanism was based on the analysis …

Effects Of Elevated Carbon Dioxide And Nitrogen Fixation On A Legume-Based System: A Test With Soybean And The Soybean Looper, Pseudoplusia Includens, Angela M. Spickard

Masters Theses

Wild-type and non-nodulated soybean were grown at 367 ± 10 ppm [ambient] and 756 ± 10 ppm [elevated] CO₂ to determine whether nitrogen fixation could minimize the effects of elevated CO₂ on plant nutritional and defensive chemistry. Relative to non-nodulated soybean, wild-type soybean had higher concentrations of leaf nitrogen and proteinase inhibitors, as well as lower C:N ratios and lower phenolics. Elevated CO₂ resulted in decreased leaf nitrogen and proteinase inhibitor contents, and increased C:N ratios and phenolics in both soybean strains. Constitutive levels of phenolics and proteinase inhibitors occurred as predicted by the Carbon/Nutrient Balance hypothesis …

Clean Versus Sterile Wound Care Technique Utilized By Registered Nurses In Acute Care When Dressing A Pressure Ulcer, Donna S. Pennington

Masters Theses

The purposes of this study were to identify the wound care technique practiced by acute care nurses and the deviations made from sterile technique when dressing a pressure ulcer. A descriptive design using a survey methodology was employed. A questionnaire, the Faller Wound Care Technique Survey, was distributed to a convenience sample of 131 acute care nurses. Forty nurses (30%) responded.

The study findings indicate that the typical wound care technique of dressing a pressure ulcer is a combination of sterile and clean procedures and is not consistent with the Agency for Health Care Policy and Research Guideline recommendations to …

The Effects Of Repeated Reading, Paired Reading, And Demonstration On Reading Fluency, Stephanie Anna Gerdes

Masters Theses

Reading curriculum generally contains instruction in two major areas, word identification and comprehension. Reading fluency, however, receives much less attention. It is too often seen more as a by-product of good instruction rather than as a central goal. This paper studies the impact of repeated reading, paired reading, and demonstration on the reading fluency of regular education students. Results suggest that integrating these strategies into the context of the regular education curriculum has a positive effect on students' reading fluency and comprehension. Practical suggestions for integrating these methods into the curriculum are given.

Does Creatine Supplementation Increase Muscle Strength In Women?, Tricia Cross

Masters Theses

The purpose of this study was to see if creatine supplementation increased muscular strength in women. Ten females were assigned to either a creatine (CG) or a placebo (PG) group with five subjects in each. The study lasted five weeks with one week of pre-testing, three weeks of creatine use which included one week of loading (12-13 g/day for seven days) and two weeks of maintenance (3-4 g/day for 14 days), and one week of post testing. Pre- and post-test strength were measured with a one repetition maximal lift (1RM) on the bench press and the leg press. All subjects …

Effect Of Antioxidants On Ultra High Molecular Weight Polyethylene (Uhmwpe), Clifford Schrader

Masters Theses

This thesis presents a study on the effects of antioxidants on the oxidative induction time (OIT), thermal behavior, and hardness property of ultra high molecular weight polyethylene (UHMWPE). The antioxidants were dissolved into methanol alcohol before the solution was mixed with UHMWPE powder. The mixture was degassed under vacuum, and then compression-molded into disks 1.25 in. in diameter.

Different antioxidants were evaluated at concentrations up to 0.6 percent. A 0.6 percent concentration was used to screen the effectiveness of various antioxidants. Effect of antioxidant concentration was investigated in the range between 0 and 0.6 percent. OIT was evaluated on UHMWPE …

Effects Of Leafy Spurge (Euphorbia Esula) Infestation On Breeding Birds Of The Sheyenne National Grassland, Nd, Daniel M. Scheiman

Masters Theses

Leafy spurge (Euphorbia esula) is an exotic invasive weed in the northern Great Plains. We examined the effects of leafy spurge infestation on densities and nest success of breeding birds in grasslands on the Sheyenne National Grassland (SNG), ND. We categorized spurge-infested grasslands into three levels of infestation, based on the area covered by spurge patches: (a) low (0-20%), (b) medium (20-60%) and, (c) high (> 60%). We surveyed 60 100-m radius circular plots (20 in each category), and searched for nests in three 16-ha plots (one in each category). There were no statistically significant differences in mean species richness …

Maternal-Infant Nurses' Knowledge Of Breast Feeding, Wendy S. Kershner

Masters Theses

This study explored the level of knowledge related to breastfeeding among maternal-infant nurses. It also explored whether there was a relationship between nurses' breastfeeding knowledge and level of education, type of clinical experience, years of experience and personal experience with breastfeeding.

A convenience sample of 67 maternal-infant nurses completed a modified version of Leadley's (1994) Breastfeeding Knowledge and Attitudes Survey.

Descriptive and correlational statistics were used to analyze the relationship between the variables and the nurse's breastfeeding knowledge. Data analysis revealed a mean score of 13.2 out of 20 questions on nurses' breastfeeding knowledge. There was no significant difference in …

Nurse Practitioners' Perceptions And Use Of Nursing Diagnoses, Gay R. Kaashoek

Masters Theses

The purpose of this study was to investigate the use of nursing diagnoses by nurse practitioners (NPs). Additionally, this study assessed NPs’ perceptions of the advantages and challenges to using nursing diagnoses. Data were collected by questionnaires mailed to a randomly selected national sample of 398 NPs.

Of the 249 participants, 48 NPs indicated that they use nursing diagnoses. No significant differences were found between nursing diagnosis use and selected demographic characteristics or educational preparation. However, the use of nursing diagnoses was significantly higher among participants who were expected to use them as NP students (χ²= 22.012; p …

The Lived Experience Of Student Nurses Providing Health Care Relief To Hurricane Mitch Victims In Nicaragua, Marci Jo Holstege

Masters Theses

International exchange and cultural immersion is becoming a favored way to educate nursing students on cultural diversity and cultural sensitivity. There is no research literature about student nurses rendering health care in a third world country after the turmoil of a natural disaster.

The purpose of this phenomenological study was to discover the lived experience of student nurses who provided health care relief to victims of Hurricane Mitch in Nicaragua. Their oral descriptions were tape recorded and transcribed verbatim. These descriptions were then analyzed using the Giorgi method. Four focal meanings emerged: a) culture shock, b) adjustments, c) lessons learned, …

The Effects Of Music On Pain And Anxiety During Intravenous Insertion In The Emergency Department, Paula R. Nichols

Masters Theses

The majority of patients presenting to the emergency department (ED) are anxious and experiencing some degree of pain. Betty Neuman's Neuman system model, provided the theoretical framework to explore and describe the effects of music on the pain and anxiety experienced during peripheral intravenous (IV) insertion in the ED. A convenience sample of 41 subjects completed pain and anxiety visual analogue scales as well as blood pressure and pulse monitoring before and after IV insertion. Twenty-one of those subjects received music during the intervention.

An analysis of covariance was performed for post-procedure pain, anxiety, pulse, and blood pressure. Anxiety was …

Efficacy Of Zinc Supplementation In Reducing The Incidence Of Recurrent Vaginitis, Bonnie R. Bartz

Masters Theses

The purpose of this study was to evaluate the efficacy of zinc supplementation in reducing the incidence of recurrent bacterial vaginosis (BY) and vulvovaginal candidiasis (W C ). Forty-one subjects were selected from researcher’s patients based on at least two episodes of vaginitis in a six-month period. A control group (placebo) and an experimental group (30 mg zinc gluconate) were randomly formed from this selection.

Evaluation of vaginitis status was accomplished through wet mounts, pH test, and KOH whiff tests at the initial, 3, and 6-month intervals. Subjects sought treatment for vaginitis when symptomatic.

A t-test analysis showed no statistically …

Is There A Relationship Between Stages Of Change And Perceived Self-Efficacy Related To Exercise Among Low Risk Pregnant Women?, Rebecca Weiner

Masters Theses

The theoretical framework used for this study was based on Prochaska and DiClemente’s (1983) Transtheoretical Model. The purpose of the study was to determine if there is a relationship between stage of change (pre-contemplation, contemplation, preparation, action, maintenance) and perceived self-efficacy regarding exercise among low risk pregnant women. Data was obtained through a survey of 140 low risk pregnant women from two private obstetricians’ offices. Participants were between 18 and 43 years old and primarily Caucasian (75%) and high school educated (85%). Each participant was successfully categorized into a stages of change based on their reported exercise behavior. The levels …

Evaluation Of The Effect Of Home Care Interventions On The Self-Care Agency And Hospital Readmission Rate Of Patients With Congestive Heart Failure, Patricia K. Rau

Masters Theses

Congestive heart failure (CHF) is prevalent and patients with CHF incur costly hospital readmissions. It is crucial to reduce rehospitalizations and improve self-care in these patients. This blind experimental study based on Dorothea Orem’s self-care deficit theory evaluated two nursing interventions provided to 49 home care patients with CHF from 42 to 94 years of age in western Michigan. The study results were drawn from a larger longitudinal study in progress by researcher Dr. Kay Setter-KIine, RN. PhD. One group received supportive-educative interventions and the other received placebo interventions. The study sought to determine if supportive-educative nursing interventions improved medication …

The Health Belief Model And Self Breast Examination In Nurses, Valerie L. Holwerda

Masters Theses

The relationship between frequency of self breast examination and health belief model variables was assessed using a convenience sample of nurses. The self-administered survey measured perceived susceptibility, perceived seriousness, perceived benefits, perceived barriers, health motivation, and confidence on 5-point Likert-type scales previously developed by Champion (1993). Individual items measured the frequency of self breast examination and demographic variables. Correlational statistics were used to determine relationships. The results of the data analysis using the Spearman correlation found that perceived benefits (p=.027), health motivation (p=.0289) and confidence (p=.008) were positively correlated with frequency of self breast examination. Perceived barriers (p=.0002) were negatively …

Neonatal Intensive Care Nurses' Perceptions Of Participation In Ethical Decision Making In The Care Of Imperiled Newborns, Dennis W. Philpott

Masters Theses

The purpose of this descriptive correlational study was to empirically examine the extent of Neonatal Intensive Care Unit (NICU) nurse participation in the ethical decision making process. The study also examined the relationship of nurse participation and satisfaction in ethical decision making to age, years of experience, level of education, and religious participation. This study attempted to describe what NICU nurses believe their role should be in the ethical decision making process. Koblberg’s theory of moral development was the theoretical framework. Data were obtained through the use of a survey mailed to Registered Nurses employed in a level III NICU. …

The Effectiveness Of An Education Intervention Related To Knowledge Increase Among Adolescents Regarding Dietary Calcium And Prevention Of Osteoporosis, Deborah K. Fast

Masters Theses

The purpose of this study was to assess the effectiveness of an educational intervention for 6th - 11th grade adolescents regarding dietary calcium and the prevention of osteoporosis. This was a secondary analysis of data from a study that used a pre-experimental pre-test-post-test; no control group design. Eighty-two boys and 102 girls completed the Healthy Bones Knowledge Questionnaire (HBKQ) as a pretest, received an educational intervention based primarily on dietary calcium intake, then completed the questionnaire again as a post-test.

As a group, the students demonstrated a significant increase in correct answers to calcium-related HBKQ items (t = 3.31, p …

The Effects Of Mutual Goal Setting On Fourth-Graders' Adherence To The Food Guide Pyramid Recommendations, Jacquelyn S. Kiefer

Masters Theses

The purpose of this study was to determine if, at the conclusion of a two week nutrition program, students involved in mutual goal setting would exhibit more positive nutrition behaviors than students not involved in mutual goal setting.

Pre-test 24-hour dietary recalls were collected on the experimental group (n = 18) and the control group (n = 19). The experimental group and the investigator then mutually set goals related to dietary practices. Both groups received nutrition education (4 classes). At the conclusion of the education and the mutual goal setting intervention, post-test 24-hour dietary recalls were collected. The data were …

Relationship Of Osteoporosis Knowledge And Perceived Susceptibility To Osteoporosis Among Hispanic Women, Johannie M. Troncoso

Masters Theses

The purpose of this descriptive study was to examine the relationship of osteoporosis knowledge to perceived susceptibility to osteoporosis among Hispanic women. The Health Belief Model (Rosenstock, Strecker, & Becker, 1994) was the theoretical framework for the study. Data were collected from a convenience sample of 54 Hispanic women, ages 18 years and older, from two different areas in a Mid-Western state. The final sample, based on the inclusion criteria, constituted 41 subjects. The participants completed the Osteoporosis Knowledge Test (OKT) developed by Kim, Horan, and Gendler (1991) and the Osteoporosis Health Belief Scale (OHBS) also developed in 1991 by …

Gary Snyder's Path, Jason Dockter

Masters Theses

Early in Gary Snyder's life, he lived a rootless existence in pursuance of gaining spiritual satisfaction through a more harmonious relationship with nature. This rootlessness that dominated this period of Snyder's life originated in Snyder's European ancestors lifestyle, which valued exploiting the natural world for a profit. Through exposure to Chinese landscape paintings, Snyder found Buddhism and began to practice it as a means to reconcile his own humanity with the natural world, which his cultural heritage has alienated himself from. Through Buddhism, Snyder realizes the importance of reuniting humanity with the natural world.

Upon gaining this knowledge, Snyder assumes …

The Effects Of Supplemental Protein On Urea Nitrogen Excretion In Women 40-70 Years Old, Tammy D. Moran

Masters Theses

The problem of this study was to determine the effect of supplemental liquid protein in women 40-70 years of age over a 4-week period. Weeks 1 and 3 served as the control period. During this time, no particular diet regime was required, but protein drinks were prohibited. The treatment condition occurred during Weeks 2 and 4. During this time, subjects consumed two protein drinks each day for a period of 7 days. Twenty-four hour urine collections occurred at the end of each week. Urine was analyzed for the presence of urea nitrogen. The dependent variables were urinary urea nitrogen, self-perceived …

Reactive Oxygen Species Generated By Depletion Of Cellular Glutathione Mediate Cadmium Cytotoxicity, Jun Xu

Masters Theses

Studies were put forth to test whether or not reactive oxygen species, which are influenced by the cellular level of reduced glutathione, mediate the toxicity of cadmium. Cadmium has been a focal point in the health care community in the past few years because it has been shown to induce the development of tumors, interfere with cellular signaling, and cause damage to organs, tissues, and biomolecules. Although various studies and theories have been proposed, little direct evidence, especially from studies utilizing primary cells in culture, has accumulated to show the mechanism by which the cadmium induced toxicity occurs.

Our studies …

The Effects Of High Fat And High Carbohydrate Diets On Aerobic Performance, Julie Becker, Kelly Mattila

Masters Theses

The effect of a high carbohydrate (HCHO) or high fat (HF) diet on time to fatigue and mood state was examined in the present study. Six untrained males, (mean age 26.6 ± 0.74) were randomly assigned to a high fat (HF) or a HCHO diet for seven days. Subjects performed an endurance test at 55% of VO₂max following the diet. Time to fatigue and psychometric variables of the Profile of Mood States (POMS) were recorded. Subjects then consumed the alternate diet following one week of a normal diet and a second endurance test was performed. There was no …

Can A Multidisciplinary Team Decrease Hospital Length Of Stay For Elderly Trauma Patients?, Beth A. Ramsey

Masters Theses

Elderly trauma patients often experience prolonged hospital stays. This study was done to determine if a multidisciplinary team approach to patient care would decrease hospital length of stay (LOS) for elderly trauma patients in the intensive care unit (ICU). Using a descriptive, correlational design, a convenience sample of 74 elderly patients aged 65 to 99 years was obtained from a trauma registry. The hypothesis that hospital LOS decreases for elderly trauma patients in the ICU who have a team approach to care was not supported using the t-test for independent means (t=1.6, df=72, p=.114). A second hypothesis proposed that the …

A Comparative Study Of Women's Perceptions Of Vaginal And Cesarean Births, Karen Blamer

Masters Theses

Perception of birth is an important consideration for all health care providers. A positive perception of birth can promote effective adaptation to the maternal role. The Roy Adaptation Model guided this research study comparing the perception of birth among women who delivered vaginally, by planned cesarean birth, and by unplanned cesarean birth.

Perception of birth was measured by the use of a 29 item questionnaire developed by Marut and Mercer and completed by 78 subjects two to four weeks postpartum. The ANOVA and post hoc Scheffe tests were used to measure the differences between groups.

The findings supported the hypothesis …

A Study Of The Elements For Effective Implementation Of A Full-Day Kindergarten Program At Armstrong-Ellis Grade School, Jamie Ann Dorsey

Masters Theses

This study was conducted to determine the effective elements needed to implement a full-day kindergarten program at Armstrong-Ellis Grade School, a rural district located in northwestern Vermilion County. It was designed by first looking at how to implement change in a system. After the steps for change were determined, the elements for effective implementation were incorporated into the change process. These elements were established by analyzing the related literature and research.

It was determined that to introduce change within a system a three-step process was needed. These steps are mobilization, implementation, and institutionalization. All three steps are examined in the …

Perceived Social Support And Exercise Compliance Of Phase Iii Patients In Cardiac Rehabilitation Programs, Rana M. Smith

Masters Theses

The purpose of this study was to determine if there was a difference in the level of perceived social support from family, friends, and program staff in Phase III patients who comply and patients who do not comply to cardiac rehabilitation programs.

Staff of 22 cardiac rehabilitation programs in ten different states, distributed 10 surveys to compliers and 10 surveys to non-compliers. A three-part questionnaire was designed to gather information regarding demographics, perceived staff social support and perceived family social support. Independent t-tests were used to determine if there were differences in perceived social support between compliers and non-compliers.

Of …

Struggle, Aspiration, And Obsession: The Discourse Of Diet, Emily K. L. Jahn

Masters Theses

Research has shown that members of society are generally dissatisfied with their current weight. This study examines how individuals socially construct meanings of the word diet and the dieting process. Participants (n=443) were males and females who ranged in age from 7 to 68. Each were given a diet questionnaire to complete. The older groups were given the Multidimensional Health Locus of Control (MHLC) Scale in addition to the survey. The text for analysis was obtained by the surveys and four focus groups. The resulting data indicated that both males and females perceive the word diet means "to lose weight." …

Symbol Of Youth, Savior From Aging: Dialectical Relationship Between American Attitudes On Vitamin E And Toward Aging, Thalia Rios

Masters Theses

This study explores the dialectical relationship between American attitudes about Vitamin E and American attitudes toward aging. Through an examination of this dialectic, I will demonstrate that Vitamin E's history has contributed greatly to current American discourses on aging. For many Americans, the vitamin symbolizes youth and health because they perceive that its use can prevent or slow the aging process. During the 1990s, many Americans' early negative perceptions of Vitamin E as a quack substance have changed, partly due to recent research advances and studies that have further elucidated its powerful antioxidant function against harmful free radicals. Meanwhile, many …

What Are Female University Students' Perceptions Of Their Healthcare Needs?, Kathleen K. Loose

Masters Theses

The purpose of this study was to gain a greater awareness of the self-perceived healthcare needs of female university students. An anonymous questionnaire was sent to a random sampling of the total female enrollment at a midwest university. A Healthcare Concern Score was tabulated on 230 completed questionnaires. There were 21 items identified as concerns. Students in the 17-24 year old age bracket had a higher healthcare concern score than individuals in the 24-53 year old age bracket. Orem’s Self-care Deficit Theory (1991) was the conceptual framework for this study. The majority of identified concerns fell within the category of …