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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.
551

Synergistic effects of mixtures of the kresoxim-methyl fungicide and medicinal plants extracts in vitro and in vivo against Botrytis Cinerea.

Knowles, Cindy-Lee January 2005 (has links)
The fungus Botrytis cinerea is an opportunistic pathogen on a wide variety of crops, causing disease known as grey mould through infections via wounds or dead plant parts. Synthetic fungicides for controlling this disease are fast becoming ineffective due to the development of resistance. This, coupled with consumers world wide becomng increasingly conscious of potential environment and health problems associated with the build up of toxic chemicals, (particularly in food products), have resulted in pressure to reduce the use of chemical pesticide volumes as well as its residues. An emerging alternative to random synthesis is the study and exploitation of naturally occurring products with fungicidal properties. There have been reports on the uses of synthetic fungicides for the control of plant pathogenic fungi. When utilized in two-way mixtures, such fungicides may maintain or enhance the level of control of a pathogen at reduced rates for both components utilized in combinations, or alone at normal rates. For this study it was hypothesize that the addition of plant extracts may enhance the antifungal efficacy of the synthetic strobilurin fungicide, kresoxim-methyl against Botrytis cinerea.
552

A descriptive study to evaluate the effect of guidelines used by counsellors to improve adherence to antiretroviral therapy in the private sector.

Marais, Melanie January 2006 (has links)
The aim of this research was to implement and evaluate guidelines that will be used by treatment support counsellors in an attempt to increase client adherence to antiretroviral treatment.
553

Effects of different heat treatments on hardness of Grade 91 steel / Effekter av olika värmebehandlingar på hårdheten hos Grade 91 stål

Ohlsson, Jonas January 2014 (has links)
CCI Valve Technology AB is a company located in Säffle, Sweden, that manufactures and installs bypass valves. Due to requirements outside normal standards on the valve's hardness values, some measurements have had difficulties meeting such requirements. During this thesis work, tests were carried out to determine how to overcome the difficulties. The experiments focused on five different areas that may affect the components hardness, welding method, soaking temperature during post weld heat treatment, measuring procedure, component thickness and number of heat treatment cycles. The Grade 91 steel specimens that were examined consisted of five solid cylinders and three various pipes that were welded together by using shielded metal arc welding (SMAW) or gas tungsten arc welding (GTAW). Each pipe was sawed apart into three equal parts. All specimens were hardness tested and eight of the specimens' microstructure was studied with an optical microscope. The hardness measurement instruments used, LECO V-100-C2 and GE-MIC 10, are Vickers hardness testers, one stationary and the other one portable. The measuring results contain a vast number of different hardness measurement data. From the analyzed data, the conclusions were drawn that the most suitable soaking temperature during post weld heat treatment were 750° C, that the SMAW method creates a more stable hardness profile than the GTAW method, and that one heat treatment cycle is more beneficial than two or more.
554

Acceptance of complementary and alternative medicine among pediatric patients with diabetes

Vincent, Dawn A. January 2007 (has links)
The purpose of this research study was to determine the acceptability of complementary and alternative medicine use in a pediatric population with diabetes. Subjects included 76 patients who attend or have previously attended a diabetes clinic at Riley Hospital for Children in Indianapolis, Indiana.Once patient and parent approval had been granted, the researcher conducted a telephone interview to gather information. Using SPSS statistical software, frequencies and Chi-squared analysis were performed on the data collected. It was revealed that although subjects had a wide variety of concerns with the use of CAM and were unsure about whether it "could heal diabetes or other health problems," a majority were willing to try CAM. Results also indicated that willingness to try CAM was not affected by the age of the child, the type of diabetes present, use of insulin or special diet, or current use of a vitamin or supplement. / Department of Family and Consumer Sciences
555

A double-blinded, placebo controlled clinical trial evaluating the efficacy of the Harpago and celery seed cream in mild to moderate degenerative joint disease of the knee

Pillay, Desigan January 2006 (has links)
A dissertation submitted in partial compliance with the requirements for the Master's Degree in Technology: Chiropractic, Durban Institute of Technology, 2006. / To determine the efficacy of the Harpago and celery seed cream in mild to moderate degenerative joint disease of the knee in terms of subjective and objective clinical findings / M
556

The efficacy of muscle energy technique in the treatment of rotator cuff tendonitis in terms of subjective and objective clinical findings

Azizi, Manny January 2006 (has links)
A dissertation submitted in partial compliance with the requirements for the Master's Degree in Technology: Chiropractic, Durban Institute Of Technology, 2006. / Purpose Repetitive strain injuries, especially rotator cuff tendonitis, are increasing and reaching epidemic proportions in certain industries and in most industrialized countries (Yassi et al. 1996). Fatigue of the rotator cuff allows the humeral head to translate anteriorly, with resultant mechanical impingement of the supraspinatus tendon. At this point inflammatory changes become evident (Fu et al. 1995). According to Greenman (1996), muscle energy technique (MET) is a 'manual medicine treatment procedure that involves the voluntary contraction of a patients muscle in a precisely controlled direction, at varying levels of intensity, against a distinctively executed counterforce applied by the operator.' It has been hypothesized that MET can be used to lengthen and strengthen muscles, to increase fluid mechanics and decrease local edema, and to mobilize a restricted articulation (Greenman 1996). However, these statements have been made in the absence or appropriate research in order to support such statements, therefore. the aim of this study was to assess the efficacy of Muscle Energy Technique in the treatment of rotator cuff tendonitis in terms of subjective and objective clinical findings. Methods Objective measures included: Diagnostic ultrasound which was used to evaluate changes in inflammation and thickness of the involved tendon, the algometer was used to assess point tenderness, whilst inclinometer readings were taken to evaluate the associated changes in range of motion that may have taken placei / M
557

The effect of differing clinical settings on chiropractic patients suffering from mechanical low back pain

Richardson, Grant Walter January 2007 (has links)
Dissertation submitted in partial compliance with the requirements for the Master's Degree in Technology: Chiropractic, Durban University of Technology, 2007. / Each healing encounter, and every treatment, has specific and non-specific treatment effects. Non - specific effects, or placebo effects, are the benefits felt by the patients because of the nature of the healing encounter. Although difficult to quantify and control, a number of authors recognize that the non-specific component of management has an additive effect on the overall clinical outcome. It has been reported that due to the physical interaction and social nature of chiropractic, there is a strong non-specific component in the management process, but to what extent it facilitates in the healing encounter is unknown. It has also been shown that spinal manipulation has a clinical effect which exceeds that of placebo; therefore it is possible for its effect to be muted or amplified, depending on the presence or absence of non-specific effects. For the above reasons this study was conducted in an attempt to map the size of the nonspecific effect in the healing encounter by manipulating the practice setting in which the patients were treated. This was achieved using a prospective, randomised, comparative clinical experiment consisting of 60 individuals with Low Back Pain (LBP), selected by convenience sampling. Individuals were then divided into 2 groups of 30. The IV first group's treatment consisted of the standard diversified method of manipulation in a Clinical Research Setting, and the second group received the same treatment except the treatment took place in a Normal Practice Setting. / M
558

The effectiveness of first rib adjustment as an adjunct to the treatment of mechanical neck pain

Brown, Colin Douglas January 2006 (has links)
A dissertation submitted in partial compliance with the requirements for a Master's Degree in Technology: Chiropractic, Durban Institute of Technology, 2006. / The purpose of this investigation was to evaluate the efficacy of the adjustment of the first rib as an adjunct to the manipulative treatment of mechanical neck pain, according to subjective and objective clinical findings. The results of this study would indicate to Chiropractors which specific types of adjustments, used for the treatment of mechanical neck pain, would potentially increase the cervical range of motion and / or decrease pain experienced by the patient and thus lead to a more effective treatment protocol. The outcome of the study will help clinicians select the more appropriate treatment for patients based on the subjective and objective outcomes. / M
559

An investigation to determine the effect of short-term low-dye taping on vertical ground reaction forces in asymptomatic PES planus, cavus and normal feet

Elphinstone, John Wayne January 2005 (has links)
A dissertation presented in partial fulfilment of the requirements for the Master's Degree in Technology: Chiropractic, Durban Institute of Technology, 2005. / Low -Dye taping is a method commonly used in sport participation and normal daily activity (Harradine, Herrington and Wright, 2001). It has been indicated in support of injured structures, decreasing edema and protection against re-injury (Reid, 1992:232). Contrary to these beliefs, studies have shown that low -dye anti-pronatory control is lost after relatively short episodes of exercise (Ator et al., 1991 and Vicenzino et aL, 1997). The variations in dynamic foot function with low -dye taping is not well understood, although tapin.g of the foot in low-dye type method has been advocated by many authors (Brantingham et aL, 1992, Ryan, 1995 and Chandler and Kibler, 1993). It was the purpose of this study to investigate the maximum ground reaction force and percentage contact time within 10 demarcated regions of the foot in asymptomatic patient with pes planus, cavus and normal medial longitudinal arches at four time intervals over 24 hours. Having established its baseline function it may serve as point of reference for clinical trials that wish to determine the role of taping as part of the management of symptomatic feet. This trial consisted of 60 participants with asymptomatic feet that were divided into three groups of 20. Participants were divided into three groups depending on their respective foot structures. To qualify for one of the three groups subjects had to either have flexible low, high or normal medial longitudinal arches. Maximum ground reaction forces (GRF) and Percent contact time was obtained for each of the three groups and for each of four visits. GRF were obtained with the aid of a registered orthotist who has agreed to work with the researcher on this project using the RSscan International 1m footscan plate system (Appendix L). The data was interpreted and analyzed using the RSscan Clinical Version 7.08 software package. / M
560

The efficacy of a phytotherapeutic complex (Angelica sinensis, Dioscorea villosa, Matricaria chamomilla, Viburnum opulus and Zingiber officinalis) compared with homoeopathic similimum in the treatment of primary dysmenorrhoea

Shange, Nondumiso Caroline January 2016 (has links)
Submitted in partial compliance with the requirements of the Master’s Degree in Technology: Homeopathy, Durban University of Technology, Durban, South Africa, 2016. / INTRODUCTION Dysmenorrhoea is defined as difficult menstrual flow or painful menstruation. Dysmenorrhoea is the most common gynaecological complaint in younger women who present themselves to clinicians. Primary dysmenorrhoea is defined as painful menstrual cramps without any evident pathology present. It refers to any degree of perceived cramping pain experienced during menstruation. Around 50% of menstruating females suffer from primary dysmenorrhoea. Prevalence decreases with age, with prevalence being highest in the 20 to 24 year old age group. This trial intended to evaluate the effectiveness of a phytotherapeutic complex in the treatment of primary dysmenorrhoea compared to homoeopathic similimum in a 30 cH plussed potency. This study aimed to provide the safe and effective alternative therapy for primary dysmenorrhoea, especially for the population that is contradicted to use the readily available forms of treatments. TRIAL DESIGN This double-blind randomised parallel clinical trial, aimed to determine the effectiveness of a phytotherapeutic complex consisting of Angelica sinensis1:10, Dioscorea villosa1:10, Matricaria chamomilla 1:10, Viburnum opulus 1:10, and Zingiber officinalis 1:10 in the treatment of primary dysmenorrhea, compared to homoeopathic similimum in a 30cH plussed potency. METHODOLOGY A sample group of 26 participants were voluntarily selected for the study on the basis of an inclusion and exclusion criteria. These participants were then randomly divided into two groups, 17 in the group receiving the phytotherapeutic complex, 8 in the control group receiving the similimum and 1 drop-out. Each participant had to attend a total of four consultations with the researcher over a three month period, at the Durban University of Technology (DUT) Homoeopathic Day Clinic. At each consultation the participant completed the Moos Menstrual Distress Questionnaire (MDQ) (Appendix B) as well as the Pain Rating Scale (PRS) (Appendix C). Intra-group analysis was performed using the non-parametric test for analysis of variance: Friedman’s test. Inter-group analysis was conducted using the Mann- Whitney U test for two independent samples. RESULTS Results from the intra-group analysis showed that in both groups most measured parameters relating to experience during the previous menstrual flow showed statistically significant reductions in intensity. This is to say that both the group receiving phytotherapy and the group receiving similimum experienced reductions in their symptoms as measured by both the MDQ and the PRS. Results from the inter-group analysis showed that there is no significant difference between the phytotherapy and similimum group in all symptoms except the water retention category, with regard to symptom perception during the last menstrual flow of the trial. CONCLUSION The conclusion reached in this study was that both the phytotherapeutic complex treatment and the homoeopathic similimum treatment were effective at reducing the clinical features of primary dysmenorrhea, but there was no significant difference between the phytotherapy and similimum group in all except the water retention category during the last menstrual period as measured by the MDQ Further, there was no statistically significant difference between groups treated with phytotherapy compared to similimum as measured by the PRS. / M

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