Digital Commons Network^™

Perceptions Of Technical Education Professionals Regarding The Purposes Of Technical Education Programs In Zimbabwe's Secondary Schools., Davison Muchemwa Mupinga

LSU Historical Dissertations and Theses

The purpose of this study was to determine the current and ideal focus of the technical education program in Zimbabwe's secondary schools. Data were collected in Zimbabwe from 452 technical education professionals (397 technical teachers, 39 technical teacher educators, and 16 education officers for technical subjects). The technical teachers were all from Harare region, the teacher educators were from three technical teacher colleges, and the education officers were from all the nine educational regions in Zimbabwe. A three part researcher designed questionnaire was used to collect data for this study. Respondents rated 40 statements of purposes of technical education on …

The Relationship Between Self -Efficacy And Weight Management Measures., Susan Jo Laing

All ETDs from UAB

No abstract provided.

Risk Management Of Aflatoxin Through Mutagenic Potential Modification And Toxin Formation By Intrinsic Components In Food., Syed Shahid Ali

LSU Historical Dissertations and Theses

Aflatoxins are the secondary metabolites of Aspergillus flavus and their presence in food and feed crops is unavoidable. This study evaluates the antimutagenic properties of phytic and linoleic acids in aflatoxin-affected food. A reduction in the number of revertants was a function of an increased concentration of phytic/linoleic acids and phosphotidylinositol in the Salmonella/microsomal mutagenicity assay (tester strains TA-100 and TA-98) with and without metabolic activation (S-9). Linoleic acid (10 and 100 mug/plate) and phosphotidylinositol (25mug/plate) were antimutagenic against most of the mutagens tested. Although a reduction in the number of revertants was observed in the phytic acid treatments, the …

Increased Nutritional Value And Oxidative Stability Of Restructured Beef Roasts With Purified Extracts From Rice Bran., Joo-Shin Kim

LSU Historical Dissertations and Theses

The effects of semi-purified extracts of rice bran were studied in restructured beef roasts to increase nutritional value and oxidative stability. Crude rice bran oil at 0, 1, and 2% (w/w) was added to restructured beef roasts that were stored at 4°C and analyzed at 0, 7, and 14 d. Saturated fatty acid to unsaturated fatty acid (SFA/UFA) ratio decreased, vitamin E vitamers increased (p < 0.05), and cholesterol decreased in the beef roasts with rice bran oil. Thiobarbituric acid reactive substances (TBARs) numbers were lower (p < 0.05) in the beef roasts with rice bran oil after 7 days of storage and the cholesterol oxidation product, 7-ketocholesterol, decreased in a similar manner. The addition of 2% rice bran oil (RBO) was effective in increasing nutritional value and reducing the level of oxidative degradation. Beef roasts containing either rice fiber (RF) or RF/RBO had higher oxidative stability (p < 0.05) during storage (0, 4, and 8 d) compared to control roasts, with no additive. TBARs value and 7-ketocholesterol of beef roasts with RF and RF/RBO were lower (p < 0.05) than those of the control during storage. SFA/UFA ratio was significantly reduced in beef roasts with additives, whereas vitamin E vitamers and UFA were higher (p < 0.05) in the roasts with RF/RBO. Beef roasts containing RF and RBO were acceptable to consumers in sensory attributes. Cholesterol autoxidation was examined in an aqueous meat model system with different levels of nonsaponifiable fraction from rice bran (0, 700, 1400, and 2100 ppm). The effect of nonsaponifiable fraction was determined at 4 h intervals for 16 h at pH 5.5 and 80°C. Increased oxidation time reduced (p < 0.05) total vitamin E vitamers and cholesterol concentration. Oryzanol was not significantly reduced with the 2100 ppm treatment after 4 h cholesterol oxidation. An increase in the nonsaponifiable fraction resulted in a decrease (p < 0.05) in the formation of 7-ketocholesterol. The highest level of additive (2100 ppm) was the most effective in inhibiting cholesterol autoxidation; the order of inhibition was 91.7% (2100 ppm) > 81.8% (1400 ppm) > 63.1% (700 ppm).

Development Of Efficient Rice Dna Transformation Methods And Rapid Evaluation Of Transgenic Lines., Junda Jiang

LSU Historical Dissertations and Theses

A rapid and efficient method was developed for production and field evaluation of transgenic herbicide resistant elite U.S. rice (Oryza sativa L.) lines and cultivars. Six elite U.S. rice lines, including the cultivar Cocodrie, were transformed for glufosinate (phosphinothricin) herbicide resistance by particle bombardment of mature seed-derived embryogenic calli with a synthetic pat gene or the bar gene from Streptomyces hygroscopicus. By utilizing optimized media for embryogenic callus induction and bialaphos or hygromycin B as a selection agent, 258 independent transformed calli, producing 1268 transgenic plants, were recovered from 5201 bombarded calli. Transformation efficiency ranged from 5% for breeding line …

Classification Of Text Documents Using A Logical Analysis Approach., Salvador Nieto Sanchez

LSU Historical Dissertations and Theses

The main problem investigated in this dissertation is as follows: Given are two samples of documents each from one of two disjoint collections of documents. The question is how to obtain a set of patterns of text features that make a document in the two samples (and other unclassified documents) to be classified correctly in one and only one document class. A sample of 2,897 documents from the TIPSTER collection was used to investigate this problem. This problem was divided into the following four subproblems. The first subproblem consists of identifying the set keywords to describe the documents' content. Computational …

Cryopreservation Of Gametes And Larvae Of The Eastern Oyster Crassostrea Virginica., Carmen G. Paniagua-Chavez

LSU Historical Dissertations and Theses

Storage of gametes and larvae offers benefits for research and commercial oyster production and should be applicable in the hatchery at a commercial scale. We optimized refrigerated storage of eastern oyster sperm. Significant differences were found in the motility of sperm suspended in artificial sea water (ASW) of different osmotic pressures (P < 0.001). The highest motility was found in undiluted sperm and the lowest in 1:31 dilution. The greatest larval survival at 12 h (48%) was obtained with sperm diluted in calcium-free Hanks' balanced salt solution (C-F HBSS). Thus, for storage of longer than 1 d, it is best to leave samples undiluted. However, when sperm samples are diluted, it is best to maintain high sperm concentrations and to use C-F HBSS as an extender. Samples were frozen at -2.5°C/min, held for 5 min at -30°C, and plunged in liquid nitrogen using 10% propylene glycol (PG) as the cryoprotectant for sperm and 10% or 15% PG for trochophore larvae. Motility and fertilizing ability of thawed sperm were affected by cryoprotectant concentration and thawing temperature (P = 0.0001). Larval survival was affected by the concentration of larvae per straw (P = 0.0011). Frozen samples were transported to an oyster hatchery at Grand Isle, Louisiana. After 4 months, 1,000 oysters from the control group, 230 oysters produced from thawed sperm, and 850 oysters from thawed larvae were found. Oysters produced from thawed larvae developed normally in the hatchery, demonstrating opportunities for use of cryopreservation in research and aquaculture. Flow cytometry with the fluorescent dyes Sybr-14 and propidium iodide (PI) was used to assess membrane damage of thawed sperm, and rhodamine 123 and PI were used to assess mitochondrial function. Preliminary studies of cryopreservation of oyster eggs were performed. Fluorescein diacetate (FDA) was used to identify viable eggs. Dimethyl sulfoxide (0.88 M and 1.75 M) and sucrose (0.12 M and 0.25 M) were the least toxic cryoprotectants evaluated. The cooling rate yielding least damage to eggs was -1.5°C per min. However, only an average of 14 eggs (out of 200) were stained with FDA in thawed samples and none were fertilizable.

The Effects Of Rumen Undegradable Choline In The Nutrition And Metabolism Of Dairy Cows., Fernando Vazquez

LSU Historical Dissertations and Theses

This study was conducted to determine whether supplemental rumen protected choline could improve lactation performance and lipid metabolism in cows in negative energy balance. In experiment 1, 19 primiparous Holstein cows were randomly assigned to dietary treatments consisting of either a control ration or control plus 15 g/d of supplemental rumen-protected choline (60 g/d of Cap-Shure, Balchem Corp., Slate Hill, NY). Close-up and early lactation rations were formulated from a grass hay and corn silage forage base, respectively, with a corn-soy concentrate, whole cottonseed. and alfalfa hay included as appropriate to meet nutrient requirements. Cows were milked twice daily. Cows …

Effect Of Rice Cultural Practices On Rotational Crop Herbicide Carryover And Imazethapyr Efficacy., Wei Zhang

LSU Historical Dissertations and Theses

A two-year study was conducted to evaluate the possible interaction between rotational crop herbicides and herbicides used in water-seeded rice culture. Rice growth and yield reduction with rotational crop herbicides were not affected by the rice herbicides. However, the combination of molinate or thiobencarb with fluometuron, imazethapyr, metolachlor, or norflurazon at low residue levels further reduced rice heading compared with the corresponding rotational crop herbicide alone. Fluometuron and metolachlor residues at 1 to 2 half-lives have potential to injure rice and reduce rice yield in a water-seeded culture. Norflurazon injured rice and reduced rice yield at a residue level as …

The Potential Of High Oryzanol Rice Bran Oil As An Antioxidant In Whole Milk Powder., Jackin Njagi Nanua

LSU Historical Dissertations and Theses

Lipid autoxidation of whole milk powder (WMP) during storage lowers its organoleptic quality and causes accumulation of oxidation products. This study evaluated the effectiveness of high-oryzanol (2.5%) rice bran oil (RBO) as an antioxidant in WMP. The powder was fortified with 0.1% and 0.2% RBO and its oxidation studied during accelerated storage at 45°C and 0.31 water activity for 40 days. Free radicals were determined by electron spin resonance spectroscopy. Oxidation was estimated by determining thiobarbituric acid reactive substances (TBARS) and cholesterol oxidation products using gas chromatography. The effect of RBO on flavor and consumer preference of freshly manufactured milk …

Takings, Fairness, And Farmland Preservation, Mark W. Cordes

Faculty Articles, Papers, and Other Scholarship

In a recent article published in this Journal, Professor Jesse Richardson attempted to refute the arguments proposed by myself and others that support the fairness of downzoning land without compensation to property owners. Central to most farmland preservation efforts is agricultural zoning, which typically involves downzoning farmland to agricultural use, precluding more intensive development. This article will briefly comment on the role compensatory programs like PDRs and TDRs should play in effective farmland preservation programs. This is true even if downzoning results in substantial diminution of land values, which means that local governments can pursue farmland preservation by putting the …

The Efficacy Of A Developmental Follow-Up Program For High-Risk Infants, Laurie M. De Jong

Graduate Student Dissertations, Theses, Capstones, and Portfolios

Objective: To assess the efficacy of a developmental follow-up program provided at a local community hospital. Efficacy was measured by the number of children referred to early intervention services and the cost effectiveness of the program. Design: This is a retrospective study of 174 children evaluated during 272 visits in the Follow-up Clinic from the inception of the program on November 22, 1994 through December 31, 1998. The data collected included referral rates and demographic information on all children. Financial information was also obtained on 74 children seen during a one year period to assess the financial implications of the …

Raman Spectroscopy For Diagnosis Of Glioblastoma Multiforme., Candace Elise Clary

All ETDs from UAB

No abstract provided.

Rapid Detection Of Staphylococcus Aureus Using A Membrane Fiber-Optic Biosensor, Jianming Ye

Open Access Dissertations

No abstract provided.

Symposium: Is Workfare Working? A Panel Discussion Sponsored By The Association Of The Bar Of The City Of New York, Robert B. Stulberg, Ronald J. Tabak, Alan Finder, Mark Hoover, Liz Krueger, Mary J. O'Connell, Gail Aska, Lawrence M. Mead

Journal of Law and Policy

No abstract provided.

South African Distance Runners: Issues Involving Their International Careers During And After Apartheid, Carrie A. Lane

Masters Theses

While some sports in South Africa have a distinct racial identity, distance running is one of the most popular sports in the country for people of all ethnic backgrounds. This study examined the issues that South African distance runners faced from the time the country was banned from Olympic competition, in 1968, to the present day. It profiled 21 male and female elite and collegiate runners who have competed in the United States from 1980 to 1999.

Because of South Africa's apartheid government, which legalized racial segregation and inequality, South African sport was excluded from international competition for 32 years. …

Nutritional Education And Its Impact In The Copalacaya, Choquenaira, Callisaya And Muruamaya Communities Of La Paz, Rosa Yolanda Mamani Arias

Theses and Dissertations

This investigation was conducted with the collaboration of the authorities of the Carrera de Nutrición y Dietética (UMSA) and the Institute of Agriculture and Food Science Ezra Taft Benson. The general secretaries, mayor scholars Management 1998, rural professors and farmers of the communities of Copalacaya, Choquenaira, Callisaya and Muruamaya of the province of Ingavi of the Department of La Paz. It has been very gratifying for the author to carry out this research in said communities, in addition to knowing the reality in which these farmers live, with whose collaboration valuable information was collected that permitted an analysis on the …

Obtaining And Sampling Of High Quality Energetic-Protein Mixtures (Pottages) Of Tuber-Cereal-Leguminous Bases In The Candelaria Area, Maria Lilian Maldonado Chavez

Theses and Dissertations

Specially designed foodstuffs destined for children of weaning age in the community of Candelaria were developed and evaluated biologically. These victuals had as bases combinations of tubers-cereals-legumes of high nutritional quality to be implemented in the home. Based on the availability of food and alimentary habits of the region, seven mixtures were formulated of triples and quadruples containing tubers (potato, oca, papaliza, and isano); cereals (rice, wheat, corn, and quinua); and legumes (tarwi, broad bean, and peanut). The cereal-leguminous proportion was maintained as one complement and the addition of the tubers. These mixes were subjected to biological tests, obtaining incremental …

Creating The 'Portable' Guardianship: Legal And Practical Implications Of Probate Court Cooperation In Interstate Guardianship Cases, Charlene D. Daniel, Paula Hannaford-Agor

Faculty Publications

In this article, we discuss the legal and practical issues associ­ated with interstate guardianships--that is, those guardianships in which the ward has ties to more than one state. Part I addresses these issues in the context of jurisdictional questions, securing nec­essary information, judicial monitoring and enforcement of guardi­anship orders, and property management. Part II proposes some modest solutions to these problems, many borrowed from other ar­eas of law (e.g., child support enforcement, child custody determinations, enforcement of civil protection orders, involuntary civil commitment).

This abstract has been taken from the authors' introduction.

Health, Health Insurance And The Labor Market, Janet Currie, Brigitte C. Madrian

Faculty Publications

This chapter provides an overview of the literature linking health, health insurance and labor market outcomes such as wages, earnings, employment, hours, occupational choice, job turnover, retirement, and the structure of employment. The ®rst part of the paper focuses on the relationship between health and labor market outcomes. The empirical literature surveyed suggests that poor health reduces the capacity to work and has substantive effects on wages, labor force participation and job choice. The exact magnitudes, however, are sensitive to both the choice of health measures and to identi®cation assumptions. The second part of the paper considers the link between …

Lost Fidelities, Barry Cushman

Journal Articles

Owen Roberts was accused of a variety of things in 1937, but “fidelity” was not among them. Justice Harlan Fiske Stone and Professor Felix Frankfurter were among many who accused Roberts of performing, as Frankfurter put it, a jurisprudential “somersault” “incapable of being attributed to a single factor relevant to the professed judicial process.” To Frankfurter, it was “all painful beyond words,” and gave him “a sickening feeling which is aroused when moral standards are adulterated in a convent.” Yet when Roberts announced his retirement from the Court eight years later, Chief Justice Stone, along with now-Justices Frankfurter and Robert …

Partnerships That Work: National Service And Business In Welfare To Work, Robert J. Keast

Partnerships/Community

Welfare-to-work has come to the fore of the social policy debate in recent years. This especially has been the case since the enactment of the Personal Responsibility and Work Opportunity Reconciliation Act of 1996 (PRWORA). PRWORA significantly altered over 60 years of American welfare policy by creating a public assistance program with the aim of replacing public sector welfare checks with private sector paychecks. In order to reach this goal, time limits on receipt of assistance as well as stronger work requirements have become central in moving people from welfare and into work.

A Comparison Of The Health Belief Model And Stages Of Change In Exercise Behavior Construct In Cardiac Rehabilitation Patients, Tracey Phillips

Masters Theses

The purpose of this study was to compare the Health Belief Model (HBM) and the STAGES theoretical constructs in the uncovering of influencing factors associated with exercise compliance behaviors in cardiac rehabilitation subjects.

Sixty subjects who had experienced a cardiac event and who were attending a phase II outpatient cardiac rehabilitation program participated in this study. A questionnaire regarding health beliefs and exercise behavior classification was administered. Questions pertained to general health motivations, effectiveness of the intervention, perception of disease severity, perception of susceptibility and the stage of exercise behavior.

An analysis of variance and Tukey's post hoc comparison statistical …

A Comparison Of Nutritional Knowledge, Eating Attitudes, Training Regimens, And Body Composition Between Normal And Abnormal Menstruating Female Adolescent Cross Country Athletes, Dena Maureen Block

Masters Theses

The purpose of this study was to compare factors that may influence menstrual irregularities of female adolescent high school cross-country runners, ranging from 13-18 years of age. A survey was utilized to determine the subjects age, year in school, exercise history, menstrual history, and training regimens and where the subjects sought nutritional information. The groups were separated according to their current menstrual status. One group (normal) consisted of subjects who currently had a normal menstrual cycle for at least one year (n=17), while the other group (abnormal) (n=18) experienced an irregular menstrual cycle.

A twenty item questionnaire was administered to …

The Granite, 1999, University Of New Hampshire

The Granite – Yearbook

The yearbook of the New Hampshire College of Agriculture and the Mechanic Arts, 1909-1922, the University of New Hampshire, 1923-

Bitterbrush (Purshia Tridentata) Regeneration Processes In A Ponderosa Pine Stand At The Lick Creek Study Area, Kristi D. Pflug

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

Health Risk Behaviors On The University Of Montana Campus Spring Semester 1996, Laurie Sorber

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

Metaphors Of The Origin Of Species: A Case Study Of The Relationship Between Metaphor Thought And Bodily Experience, Abdulsalam S. Al-Zahrani

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

Native American Mother-Infant Interactions At Nine Months: A Cross-Cultural Study Of The Still-Face Effect, Linda R. Thomas

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

Physical Education Frequency : Effects On Fitness And Perceived Competence In Fifth Grade Students, Nicole Sutton Donally

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.