Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 50 for “"Pesticide exposure"”.
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Neurobehavioural effects of pesticide exposure among emerging farmers in the Western Cape
… effects resulting from long-term low-level exposure to organophosphate pesticides amongst emerging farmers. A cohort study involving 319 (66% male and 34% female) emerging farmers in the Western Cape was conducted between 2009 and 2010. Testing included a questionnaire exploring demographic …
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Implementing legislative mandate : protecting migrant and seasonal farmworkers from occupational pesticide exposure
Thesis (M.C.P.)--Massachusetts Institute of Technology, Dept. of Urban Studies and Planning, 1981.
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Amphibian occupancy and effects of habitat use on pesticide exposure in Iowa agricultural wetlands
… in these landscapes are habitat loss and pesticides. This thesis focuses on amphibians using agricultural wetlands in Iowa, where row crops such as corn and soybeans dominate the landscape. The goal of my first study was to determine the influences of site characteristics on amphibian …
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Respiratory allergy and asthma associated with pesticide exposure amongst women in rural Western Cape
Pesticide exposure has been increasingly associated with adverse respiratory health effects including asthma and allergy. However, few studies have been conducted among women and workers in developing countries. South Africa is one of the largest users of pesticides on the continent and the Western …
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Associations Between Urinary Concentrations of Non-Persistent Pesticide Exposure, Polycyclic Aromatic Hydrocarbons and Cardiometabolic Health
… whether the less studied organophosphate (OP) pesticides and polycyclic aromatic hydrocarbons (PAH) influence cardiometabolic health independent of BMI. The first study in this thesis used 2,227 participants from the National Health and Nutrition Examination Survey (NHANES). It was demonstrated …
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Reproductive health effects due to pesticide exposure amongst boys in the rural Western Cape, South Africa
Contemporary agricultural pesticides have been shown to possess hormonally-active properties, and have been associated with declining male reproductive health. These chemicals act by disrupting the normal functioning of the male endocrine system, through their actions on the …
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Profile of the Youth Self-Report Among South Texas Adolescents and the Potential Relationship to Pesticide Exposure
The potential for human exposure to pesticides exists particularly for agricultural workers (i.e. migrant workers) and individuals within close proximity to pesticide-sprayed crops (i.e. those living on or near agricultural farms). Children, through biology and behavior, may be more susceptible and …
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Row crop environments provide an all-you-can-eat buffet and pesticide exposure to foraging honey bees
… Foragers were exposed to thirty-five different pesticides throughout the foraging season, based on pesticide residues in collected pollen. Overall, row crop fields are contributing a surprising majority of mid-summer forage to honey bee hives and suggests that similar agricultural landscapes may …
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The association of depression, impulsivity and suicidal ideation with organophosphate pesticide exposure amongst South African farm workers
… as possible causal pathways between OP exposure and depression, impulsive behaviour and suicidal ideation.
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Organophosphorus Pesticide Exposure Effects on Neurobehavioral Development of Zebrafish and Characterization of Developmental Switch Between Two Cation-chloride Cotransporters (zfnkcc1 and zfkcc2)
<p>Organophosphorus pesticides (OPs) are neuroactive compounds that can affect the development of the nervous system and behavior. Using zebrafish, we compared the effectiveness of three different OPs, chlorpyrifos (CPF), diazinon (DZN) and parathion (PA) on survival, AChE inhibition and larval …
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Examining the impacts of pesticide exposure on the survivorship and development of the Great Basin Spadefoot (Spea intermontana) and the Pacific Treefrog (Pseudacris regilla) in a laboratory environment
Amphibian populations are declining globally, and pesticides have been suggested as one of the contributing factors. Field experiments involving ponds immersed in agricultural environments have been observed to have dramatically lower biodiversity and amphibian abundance than ponds located in …
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Association between environmental exposure to pesticides and prevalence of asthma symptoms in rural children and adolescents living in agricultural settings in the Western Cape
… conflicting evidence on the association between pesticide exposure and child asthma related outcomes in agricultural settings and limited data in developing country settings. Objectives: This study investigated the association between children's exposure to pesticides and asthma related outcomes …
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Immunotoxicity of Pesticide Mixtures and the Role of Oxidative Stress
The immunotoxic effects of multiple pesticide exposure were evaluated. C57BL/6 mouse thymocytes were exposed to lindane, malathion, and permethrin, either separately or in mixtures of two pesticides, in concentrations ranging from 37.5 uM to 1mM. These exposures caused both apoptotic and necrotic …
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Relationship between urinary levels of organophosphate metabolites and pesticide exposures among rural school boys of the Western Cape
Background: Biomonitoring of pesticides is an objective measure of short-term pesticide exposure as it measures possible exposure in the human body. Current evidence on the relationship between demographic, socio-economic and pesticide exposure risk factors and urinary levels of organophosphate …
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The relationship between environmental exposures to pesticides measured by means of environmental exposure indices and the anthropomentric outcomes of boys living on farms in the rural Western Cape
… studies have investigated the effect of pesticides on growth of boys and results are conflicting. Pesticide environmental exposure indices have not previously been developed. To investigate the effect of pesticide exposure using environmental exposure indices on pubertal growth of boys...
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Retrospective analysis of suspected pesticide-related fatalities admitted to Salt River Mortuary in the West Metropole of Cape Town, Republic of South Africa
Introduction: Pesticides offer great benefits in the agricultural sector, but exposure may pose both acute and chronic health risks to humans. In developing countries, morbidity and mortality rates related to pesticide exposure are high and in certain areas (such as in rural, lower socioeconomic …
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The reciprocal influence of trematode parasites and malathion on developing pickerel frogs (Rana palustris)
… I studied the reverse interaction, the effect of pesticide exposure on susceptibility to parasite infection. I exposed pickerel frog embryos to low doses of malathion, then subjected morphologically normal tadpoles to E. trivolvis later in development. Malathion significantly decreased hatching …
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Identification and Screening of Biomarkers of Human Exposure to Environmental and Food Toxicants in Sewage
Pesticides are active substances with potentially adverse effects on human health, and therefore great effort is addressed to study the relation between their widespread use and human exposure. Human biomonitoring (HBM) is the most widely used and powerful tool to evaluate the exposure of the …
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Obstructive Lung Disease among tobacco farmers in Malawi
… to toxic workplace hazards such as nicotine and pesticides in addition to known agriculture related hazards like dust, and ergonomic factors. Nicotine and pesticide exposure have been linked to the development of chronic respiratory diseases. This study was aimed at determining the prevalence of …
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Characterizing Occupational Risk Factors and Kidney Function in Migrant Farm Workers
… explain the pattern of this disease, including exposure to pesticides, dehydration, and heat stress. However, there is a paucity of studies that have comprehensively examined the potential combined effect of kidney function in relation to several occupational factors though time. Therefore, in …
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