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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.
1

Die bepaling van sekere plaagdoderreste in die bloed van plaaswerkers op appelplase in die Elgin-distrik

Morren, Carel-Jan Hendrikus January 1994 (has links)
Thesis (Masters Diploma (Technology)--Cape Technikon, Cape Town,1994 / Pesticides are generally used in south-Africa for the control of various pests; from insects and fungi to weeds. The agricultural industry is probably the biggest user of pesticides and therefore workers in this part of the labour force have the biggest risk of being exposed to the hazards of these essential products. During the 1988/89 deciduous fruit season the deciduous fruit industry earned approximately R1000 million in foreign exchange. It is therefore very important for this industry to produce fruit of high quality in a very competitive market. Of the total deciduous exports, apples comprised approximately 62,5%. The EIgin-Grabouw area is the biggest producer of apples. This industry is clearly very dependant on pesticides to protect its crops against pests. From time to time farm - workers are exposed to pesticides, a study was therefore performed to access the levels of exposure of farm workers. Blood and urine samples were collected in a comprehensive biological monitoring program in the Elgin area to determine, uusing clinical tests, the level of exposure to pesticides. It was decided later that the determination of pesticide residues in blood would form part of this main study. Other tests included serum and red cell cholinesterase. Samples were collected during August (start of spraying season), November (midseason) and February (end of spraying season). A multi-residue method was developed to extract organophosphate and organochlorine pesticides in whole blood. Although various methods exist, they allow only for the extraction of either organophosphates or organochlorines and not multi-residue extractions. This multi-residue method is based on the liquid/liquid extraction of a blood/Celite/ethanol mixture to extract the following pesticides: Azinphos-methyl, Chlorpyrifos, Endosulfan, Methidathion and Prothiophos. The pesticide residue levels were determined on gas chromatographs equipped with DB-5 and DB-2I0 capillary columns and flame photometric-, electron capture- and nitrogen/phosphorous detectors. The results were confirmed on a gas chromatograph with mass-selective detector in selective ion mode. Of the 402 blood samples analysed, 23 samples showed positive for organophoshates and 29 for organochlorines, and were sent for analysis on the mass spectrometer. Of those samples only one could be positively identified. The presence of the pesticide Endosulfan-B was confirmed. The confirmation of the pesticides was complicated by interfering substances that leached from the rubber stoppers of the collection vessels into the blood. Although the study showed that for practical purposes no pesticides were present, other important information was obtained about the handling and analyses of blood samples for pesticides.
2

Evaluation of the implementation of an HIV/AIDS workplace policy for farm workers : a case study of Country Mushrooms

Monnakgotla, Nakedi Margaret 02 1900 (has links)
Farm workers in South Africa have limited access to health care and health-related information. In this qualitative study, the implementation of a workplace HIV/AIDS policy was evaluated using data gathered through interviews and observation. It was found that, although the farm workers were knowledgeable about HIV and AIDS, this knowledge was insufficient. It was found that the lives of farm workers are deeply affected by HIV and AIDS. It is also suggested that the agricultural sector is not yet able to deal effectively with HIV and AIDS and that, in this regard, urgent planning is needed in respect of HIV and AIDS policies and interventions / Social Work / M.A. (Social Behaviour Studies in HIV/AIDS)
3

Evaluation of the implementation of an HIV/AIDS workplace policy for farm workers : a case study of Country Mushrooms

Monnakgotla, Nakedi Margaret 02 1900 (has links)
Farm workers in South Africa have limited access to health care and health-related information. In this qualitative study, the implementation of a workplace HIV/AIDS policy was evaluated using data gathered through interviews and observation. It was found that, although the farm workers were knowledgeable about HIV and AIDS, this knowledge was insufficient. It was found that the lives of farm workers are deeply affected by HIV and AIDS. It is also suggested that the agricultural sector is not yet able to deal effectively with HIV and AIDS and that, in this regard, urgent planning is needed in respect of HIV and AIDS policies and interventions / Social Work / M.A. (Social Behaviour Studies in HIV/AIDS)
4

A hidden cohort: HIV and AIDS amongst the farming community

Netangaheni, Thinavhuyo Robert 10 1900 (has links)
Purpose This research project was an attempt to determine situational aspects of HIV and AIDS among the designated farming communities in the Vhembe and Mopani districts of Limpopo Province. Questions arising from the pilot project were premised on the capacity of farmers in these areas to adequately address the daunting reality and prevalence of HIV and AIDS in their communities. Research Design and Methodology The research was designed to facilitate the integration of both qualitative and quantitative approaches. A sample of 228 respondents was involved in a triangulated participatory action research method. To the extent that the data collection techniques were triangulated in both nature and focus, HIV/AIDS-related data and information within the designated farming communities was attained with a maximum degree of validity. The data collection techniques used in this regard were: questionnaires, which were distributed to 228 respondents; participant observation; exploratory investigation; unstructured interviews; naturalistic observation; focus group interviews and discussion; and review of documents. The reviewed documents include (primary) sources on HIV/AIDS by the Department of Health and (secondary) sources of literature by various authors presenting a range of perspectives on HIV/AIDS in farming areas. Findings The results of the study revealed the absence of a coordinated policy on HIV/AIDS in particular, and health in general; and a vacuous prevalence of basic HIV/AIDS-related information. For instance, knowledge on condom usage as a prevention strategy was ostensibly scant. Currently, primary healthcare services in the area are not available. The sampled farm workers themselves unanimously corroborated that there was no HIV/AIDS policy on the SAFM farms. Conclusion Based on the main findings established above, it has become indispensable that comprehensive and multidisciplinary HIV/AIDS policy interventions be initiated by all the relevant stakeholders. Local and provincial healthcare authorities need to provide policy guidelines for the development of such policy, taking the particular needs and circumstances of farm workers. The pervasive degree of insufficient HIV/AIDS knowledge among this group necessitates that such a policy should integrate both a labour perspective and healthcare orientation, rather than perpetuating a separation of the two paradigms. This form of integration ensures that the observance of a human rights dimension becomes a sacrosanct component of the prevention of HIV/AIDS among farm workers, as well as their education concerning their healthcare-related rights as farm employees. Furthermore, the prevalence of a national HIV and AIDS policy is mainly aimed at facilitating broad guidelines, not addressing the specific contexts of every public, corporate and rural employment sector (DoH, 2007: 11-12; Muhlemann, et al., 1992: 479). In order that the education, prevention and treatment initiatives in the Vhembe and Mopani farming communities are achieved, the most important parameters of the policy should indicate: ,,X The systematic institutionalisation of local, provincial, and national HIV and AIDS programmes, notwithstanding the provision of healthcare facilities such as clinics; ,,X The promotion of basic healthcare education in general, and HIV/AIDS awareness and prevention among farm workers in particular; ,,X The development of HIV/AIDS work place policy by SAFM as employer; ,,X The systematic involvement and formation of partnerships between policy makers, local and international funders, HIV/AIDS healthcare workers and practitioners, NGOs and SAFM. As a critical factor and unit of analysis in the study, SAFM is expected to fulfil a developmental function among its employees, their families, and the local communities. This function could be enhanced further with the collaboration between SAFM and other farmers in the distribution of basic information regarding HIV/AIDS and other sexually transmitted diseases at the workplace, as well as extensive healthcare education and training for their farming personnel. Trained personnel, especially managers, are a salient factor in the implementation of organisational health and safety requirements (DoH, 2007: 6, 8; Muhlemann, et al., 1992: 478-479). / Health Studies / D. Litt. et Phil. (Health Studies)
5

A hidden cohort: HIV and AIDS amongst the farming community

Netangaheni, Thinavhuyo Robert 10 1900 (has links)
Purpose This research project was an attempt to determine situational aspects of HIV and AIDS among the designated farming communities in the Vhembe and Mopani districts of Limpopo Province. Questions arising from the pilot project were premised on the capacity of farmers in these areas to adequately address the daunting reality and prevalence of HIV and AIDS in their communities. Research Design and Methodology The research was designed to facilitate the integration of both qualitative and quantitative approaches. A sample of 228 respondents was involved in a triangulated participatory action research method. To the extent that the data collection techniques were triangulated in both nature and focus, HIV/AIDS-related data and information within the designated farming communities was attained with a maximum degree of validity. The data collection techniques used in this regard were: questionnaires, which were distributed to 228 respondents; participant observation; exploratory investigation; unstructured interviews; naturalistic observation; focus group interviews and discussion; and review of documents. The reviewed documents include (primary) sources on HIV/AIDS by the Department of Health and (secondary) sources of literature by various authors presenting a range of perspectives on HIV/AIDS in farming areas. Findings The results of the study revealed the absence of a coordinated policy on HIV/AIDS in particular, and health in general; and a vacuous prevalence of basic HIV/AIDS-related information. For instance, knowledge on condom usage as a prevention strategy was ostensibly scant. Currently, primary healthcare services in the area are not available. The sampled farm workers themselves unanimously corroborated that there was no HIV/AIDS policy on the SAFM farms. Conclusion Based on the main findings established above, it has become indispensable that comprehensive and multidisciplinary HIV/AIDS policy interventions be initiated by all the relevant stakeholders. Local and provincial healthcare authorities need to provide policy guidelines for the development of such policy, taking the particular needs and circumstances of farm workers. The pervasive degree of insufficient HIV/AIDS knowledge among this group necessitates that such a policy should integrate both a labour perspective and healthcare orientation, rather than perpetuating a separation of the two paradigms. This form of integration ensures that the observance of a human rights dimension becomes a sacrosanct component of the prevention of HIV/AIDS among farm workers, as well as their education concerning their healthcare-related rights as farm employees. Furthermore, the prevalence of a national HIV and AIDS policy is mainly aimed at facilitating broad guidelines, not addressing the specific contexts of every public, corporate and rural employment sector (DoH, 2007: 11-12; Muhlemann, et al., 1992: 479). In order that the education, prevention and treatment initiatives in the Vhembe and Mopani farming communities are achieved, the most important parameters of the policy should indicate: ,,X The systematic institutionalisation of local, provincial, and national HIV and AIDS programmes, notwithstanding the provision of healthcare facilities such as clinics; ,,X The promotion of basic healthcare education in general, and HIV/AIDS awareness and prevention among farm workers in particular; ,,X The development of HIV/AIDS work place policy by SAFM as employer; ,,X The systematic involvement and formation of partnerships between policy makers, local and international funders, HIV/AIDS healthcare workers and practitioners, NGOs and SAFM. As a critical factor and unit of analysis in the study, SAFM is expected to fulfil a developmental function among its employees, their families, and the local communities. This function could be enhanced further with the collaboration between SAFM and other farmers in the distribution of basic information regarding HIV/AIDS and other sexually transmitted diseases at the workplace, as well as extensive healthcare education and training for their farming personnel. Trained personnel, especially managers, are a salient factor in the implementation of organisational health and safety requirements (DoH, 2007: 6, 8; Muhlemann, et al., 1992: 478-479). / Health Studies / D. Litt. et Phil. (Health Studies)

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