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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
161

The effect of alpha-linolenic acid versus long chain omega-3 PUFA supplementation on risk factors for coronary heart disease in healthy subjects

Finnegan, Yvonne E. January 2001 (has links)
No description available.
162

Knowledge, behaviors, and beliefs of nannies regarding nutrition for children in their care

Garza, Melody 18 November 2010 (has links)
Nannies impact the development of children; however, research is nonexistent regarding their influence on children’s eating habits. The purpose of this study was to examine nannies’ nutrition knowledge, feeding behaviors, and beliefs about children and eating. In a descriptive, cross-sectional study, 83 nannies responded to an electronic survey. Respondents were White (94%, n=78), females (100%, n=83) and full-time employees (73.2%, n=60) of one family (82.1%, n=64). Nannies’ mean raw score was 24 out of 32 points resulting In 75% correct in nutrition knowledge. No significant correlations were found between scores and age (p=.51), education (/?=.73), or employment years (/?=.47). Responses to interaction statements indicated more authoritarian (35.8%, n=24) and indulgent (32.8%, n=22) feeding styles towards children than authoritative (14.9%, n=10) or uninvolved (16.4%, n=ll). Nannies believed that parents/guardians (66%, n=45) had the greatest influence on children’s eating habits, however, perceived they had high influence (79.4%, n=54). Although nannies exhibited average nutrition knowledge, their authoritarian and indulgent feeding styles may result in poor nutritional habits for the children. While it is important for nannies to attend nutrition education sessions, it is vital for nannies to obtain knowledge on how the various feeding styles affect a child’s nutrition. ­
163

Adaptation to Dietary Protein of Nitrogenous Components in Blood and Urine

Kim, Whang Hea 01 May 1969 (has links)
A study was made of the adaptation to dietary protein of nitrogenous components in blood and urine of rats and humans. Forty-four mature male rats "ere adapted to a low protein diet (10 per cent casein diet) for three weeks before they were divided into two groups. Four rats were then killed for a control, and twenty of the remaining rats were switched to a high protein diet (40 per cent casein diet) and the other twenty continued to be fed the low protein diet. Four rats fed each level of protein were killed 2, 4, 6, 8, and 10 days after they were divided into two groups. A study similar to that carried out on rats was conducted on six male college students who were living in the same unit of a cooking dormitory. Blood and urine samples were taken when they were eating a normal diet as a control and then they were adapted on a low protein dict providing 12 per cent of the calories as protein for two weeks. They were then switched to a high protein diet containing 30 per cent protein calories for four consecutive days. The rats fed the 40 per cent casein diet had a higher rate of weight gain and increased amounts of urine per 24 hours than the rats fed the 10 per cent casein diet. Urinary output of the human subjects on the diets containing 30 per cent protein calories was greater than when they received the 12 per cent protein calorie diet. There was a significant increase in total nitrogen and urea in serum and urine of rats and humans as the dietary protein level increased. The urinary excretion of uric acid, of creatinine in humans, and of urinary amino nitrogen and total serum protein in rats and humans were also increased appreciably as the protein intake increased. Ko significant effects or trends in serum amino nitrogen of humans, or serum creatinine in rats or humans were observed with the change in the level of dietary protein. The high casein diet fed to rats reduced the excretion of creatinine and serum uric acid, while the high meat intake increased the excretion of creatinine and of uric acid in the humans. It was also found that there was a high negative correlation between serum uric acid and urinary uric acid of rats, and between serum amino nitrogen and urinary amino nitrogen of human subjects. This study indicates that the body rapidly adjusts to an altered level of protein intake by changing the level of nitrogenous components in blood and urine.
164

Role of Lamb Pregastric and Gastric Extracts in Cheese Manufacture

Chaudhari, Ramjibhai V. 01 May 1969 (has links)
Lamb pregastric (PGE) and gastric extracts (GE) have been evaluated for their role in Italian cheese flavor production. Both have been shown to produce increases in free fatty acids and in non-protein-nitrogen during incubation with milk fat and casein substrates as well as in cheese substrates. Gastric lipase and cathepsins are considered to be the additional active agents in GE. Parmesan cheese manufactured with PGE and GE added to the curd was superior in flavor when both were employed, and either extract alone was better than the uninnoculated control. An assay for GE proteolytic activity has been proposed which involves the use of pH9.0 casein substrate thereby eliminating the effects of pepsin and rennin proteases. Differences among GE and rennin or pepsin preparations have also been established using starch gel electrophoresis and casein-agar gel diffusion techniques.
165

The Effects of Telone and Related Compounds on the Synthesis and Degradation of Carotenoids in Plants

Berry, David L. 01 May 1971 (has links)
The incorporation of 3- C-,B-hydroxy-, B-methylglutaric acid (HMG) vii into carotenoids of excised etiolated maize shoots, crude cell free extracts and soluble extracts (20, 000 x g) of maize was investigated. HMG was effectively incorporated into carotenoids of excised shoots, crude extracts and soluble extracts. The excised shoots, crude extracts and soluble extracts incorporated 2- 14 C-mevalonic acid (MVA) into carotenoids as well. The results indicated the presence of HMG-CoA reductase in the plant as well as an HMG activating enzyme. The soluble extract showed a pH optimum of 7. 0 for incorporation of HMG into carotenoids. Endogenous metabolites such as MVA in the soluble enzyme preparation decreased the amount of 3- 14 C-HMG incorporated into carotenoids. The conversion of HMG to MVA may be a regulatory site in carotenoid biosynthesis in the plant. Telone (a mixture of cis-1, 3-dichloropropene, trans-I, 3-dichloropropene and other halogenated hydrocarbons), 3-chloroallyl alcohol, viii 3-chloropropionic acid, 3-hydroxypropionic acid, 3-chloro-1-propanol and 14 malonic acid significantly reduced the amount of 3- C-HMG incorporated into carotenoids of maize. Activity of lipoxidase from tomato extracts was significantly inhibited by Telone, cis-1, 3-dichloropropene, trans-1, 3-dichloropropene, 3-chloroallyl alcohol, 3-chloropropionic acid, 3-hydroxy-propionic acid, 3-chloro-1-propanol and malonic acid.
166

Exploring the barriers to the introduction of a best practice nutrition and dietetics service model in rural areas

Brown, Leanne January 2009 (has links)
Research Doctorate - Doctor of Philosophy (PhD) / This body of research explores the barriers that exist to the introduction of best practice models for dietetics services in rural areas of Australia. Best practice in this thesis refers to workforce staffing and organisational best practice, rather than clinical best practice. For the purpose of this thesis a best practice dietetic service has been defined as a timely, accessible, up-to-date nutrition and dietetic service that is effective in meeting the identified needs of the community based on a quality health service definition (Halton 2005). There is no known previous research that has investigated the elements of a best practice dietetics staffing model and the factors that support or inhibit the development of a best practice dietetic service model in rural areas. A review of the literature was conducted to determine the potential features of a best practice dietetic service for rural areas and the factors that are known to affect the development of a best practice service. A theoretical model of best practice dietetic services for rural areas was tested using a series of case studies. An exploratory sequential mixed methods approach has been used in six case study sites to investigate the barriers to best practice using rural sites in northern New South Wales (NSW), Australia as the setting. The mixed method multiple case study investigated the dietetics workforce characteristics and development in the study sites. Best practice dietetic service delivery was tested with cancer patients using the implementation and evaluation of best practice dietetic clinical guidelines in a rural setting. Key findings from this research include: retention issues related to a lack of management support, limited career pathways and professional isolation. Key drivers for the creation of dietetics positions included the actions of champions and the support of management. The main barriers to the creation of positions included a general lack of funds and competing priorities. The outcomes of this research are important for future workforce planning for dietitians in rural areas.
167

Effect of monounsaturated fat in the diet on the serum carotenoid levels

Ahuja, KDK January 2001 (has links) (PDF)
Epidemiological data suggest that populations with higher serum/ tissue levels of carotenoids have a lower risk of coronary heart disease (CHD), possibly due to the antioxidant capacity. Lycopene, a carotenoid mainly found in tomatoes, has been suggested to have the greatest antioxidant capacity of the carotenoids found in fruits and vegetables. Carotenoids are fat-soluble compounds and their absorption from the diet into the body may depend on the amount of dietary fat ingested. For years there has been debate about what energy source should replace the saturated fat in the diet, to give the optimum serum lipid profile to reduce CHD risk. Studies have compared monounsaturated fat rich diets with high carbohydrate, low fat diets and have found that both diets decrease serum cholesterol and low-density lipoprotein (LDL) cholesterol levels. Results for high-density lipoprotein (HDL) cholesterol and triglycerides have been inconsistent. However, it is of interest to study the effects of different diets on lipid oxidation, as this may also influence CHD risk. Studies have investigated the effect of different amounts of total fat on the serum levels of carotenoids especially beta-carotene and lutein, but to our knowledge no study has looked at the effect of different amounts of fats on the serum lycopene levels, and whether this could subsequently affect the oxidation of LDL in vitro. XIV Two separate randomised crossover dietary intervention studies were conducted; one in healthy men and the other in healthy women aged 20 to 70 years. The aim was to compare the effects of monounsaturated fat rich (MUFA) diet (38% of energy from fat) and high carbohydrate low fat (HCLF) diet (15% energy from fat) with controlled lycopene content, on serum lycopene levels. Main sources of lycopene in the diets were canned tomatoes and tomato soup for the study in women (lycopene content -15.9 mg/day) and tomato paste and tomato soup for the study in men (lycopene content - 20.2 mg/day). Serum lipids and lipoproteins levels and in vitro oxidation of LDL particles were also measured. Compared to the baseline levels there was a significant increase in the serum trans lycopene and total lycopene levels after MUFA diet for the study in women. Comparing the levels at the end of the two diets no difference was observed. In the study in men serum trans, cis and total lycopene levels increased after the MUFA and HCLF diet periods. There was no significant difference in trans; cis and total lycopene levels at the end of two diets. Thus, high levels of monounsaturated fat in the diet do not appear to increase lycopene absorption and serum levels compared to very low fat diet. There was however a better serum lipid profile after MUFA diet compared to HCLF diet. Lag phase for the in vitro oxidation of LDL particles was also longer on the MUFA diet. The lack of difference in antioxidant levels would indicate that this was due to the different fatty acid component of the diet.
168

Development and initial validation of a self-efficacy scale for use with registered dietitians working with overweight youth

Reinold, Christopher M. January 2007 (has links) (PDF)
Thesis (Ph. D.)--University of Alabama at Birmingham, 2007. / Title from first page of PDF file (viewed Oct. 31, 2007). Includes bibliographical references (p. 127-134).
169

An exploration of attitudes toward obesity and its association with dietary intake and percent body fat between dietetic and non-dietetic majors /

Dubale, Gauri M. January 2004 (has links)
Thesis (M.S.)--Ohio University, November, 2004. / Includes bibliographical references (p. 77-97)
170

Content validation of Nutrition Diagnostic Term Involuntary Weight Loss by board certified specialists in gerontological nutrition

Ritter-Gooder, Paula K. January 2009 (has links)
Thesis (Ph.D.)--University of Nebraska-Lincoln, 2009. / Title from title screen (site viewed January 12, 2010). PDF text: v, 101 p. ; 1.58 Mb. UMI publication number: AAT 3365739. Includes bibliographical references. Also available in microfilm and microfiche formats.

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