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 34 for “"Contaminated food"”.
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Comparative Bioavailability of Dietary and Dissolved Cadmium to Freshwater Aquatic Snails
… of cadmium. Snails were exposed to control, contaminated food only, contaminated water only, and contaminated food and water treatments. During the 15-day exposure, samples were taken to determine Cd concentration in snail soft tissue, snail shell, algal food, and overlying water. Analyses of …
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Development of a novel carbohydrate-based method for the detection of norovirus from ready-to-eat foods
… Outbreaks of norovirus are often linked to contaminated food or water. Ready-to-eat foods are particularly prone to contamination, since they often require handling during preparation and are not usually heated before serving. Norovirus capsids have been shown to interact specifically with …
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Group Differences in Mother-Infant <i>Macaca fascicularis</i> Behavior, Parasite Load, and Body Condition within an Anthropogenically Altered Forest
… influenced by the high population density, contaminated food and water sources, human activity, or unquantifiable variables such as age and rank.</p>
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Model of PAH and PCB bioaccumulation in Mya arenaria and application for site assessment in conjunction with sediment quality screening criteria
… contaminants through sediment and ingestion of contaminated food particles. Results show the model predicts PCB accumulation in M. arenaria with only a slight variation from observed data. Partitioning into sedimentary soot fraction was added to the model for PARs. Results showed an increase in …
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Norovirus in Recreational Waters in Arizona
… route and infections can occur from drinking contaminated water or eating contaminated food, contact with contaminated fomites, inhalation of aerosolized vomitus, or person to person spread. Outbreaks of norovirus following exposure to contaminated recreational water have been documented, as …
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Coordinated regulation of the flagellar, Salmonella pathogenicity island 1, and the type I fimbriae gene networks in Salmonella typhimurium
… a phenotypic response from the cell. Using the food-borne pathogen, Salmonella, as a model organism, we try to investigate how cells encode strategies in networks to optimally control cellular behavior. Salmonella, on ingestion with contaminated food, swims in small intestine using …
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Molecular and genetic analysis of Cryptosporidium spp. oocysts : sources and genotypes in the environment
… Transmission of Cryptosporidium spp. via fecally-contaminated food and water has been well-documented, and outbreaks of cryptosporidiosis have occurred around the world. The exogenous stage of the organism, the oocyst, is difficult to remove from drinking water supplies because it is resistant to …
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Molecular typing of virulence genes in enterotoxigenic Bacillus cereus
… emesis and/or diarrhea following ingestion of contaminated food due to the production of emetic toxins and enterotoxins. SYBR Green I is used as an intercalating dye and its florescence increases as a result of DNA amplification during real-time PCR. A second-derivative plot is obtained at the …
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Development of gold nanoparticles based lateral flow assay for detection of food and water-borne pathogens
Food and water are two of the necessities required for survival. With increasing global population, urbanization, and climate change, to name a few, the strain on these two precious resources puts pressure on health as well as the economic sector. Microbial contamination of food and water can lead …
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Human aflatoxin exposure in south-western Ethiopia assessed using serum biomarkers: A thesis submitted in partial fulfilment of the requirements for the Degree of Master of Science at Lincoln University
… and A. parasiticus. Consumption of aflatoxin-contaminated food can cause hepatocellular carcinoma, immune suppression, child growth impairment, and death. The study aimed to assess aflatoxin exposure in South-western Ethiopian adults, using serum biomarkers. The study was conducted in five …
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The application of molecular techniques for the rapid and sensitive detection of gastrointestinal pathogens directly in food
… and are unable to meet the demands for rapid food testing. Molecular methods, such as PCR, offer a rapid, sensitive and specific means of detecting pathogens, however loss of sensitivity and lack of robustness have been reported when PCR is applied to heterogeneous and complex food matrices. …
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Fast But Right: Outbreak Surveillance And Foodborne Knowledge Infrastructure
… and investigating national outbreaks of foodborne disease. Drawing on archival and ethnographic material from US public health and regulatory agencies, I investigate how officials have built and used surveillance systems to make foodborne outbreaks visible, reflecting the shape of the …
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Flux of cadmium through a laboratory food chain (media-algae-mussel) and its effects
… the flux of this metal through a laboratory food chain, algae were grown in various cadmium concentrations for subsequent use as contaminated food for mussels. The results showed that in order to make valid deductions, more information about chemical mechanisms and background ecophysiological …
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Analysis of food safety and food handling knowledge among street food vendors in selected local food markets in Windhoek
Contaminated food leads to foodborne disease outbreaks (FDO) that cause millions of deaths among people every year. In Namibia, many low and middle-income consumers use street-vended foods (SVF) with compromised quality of raw materials, degraded handling and storage conditions that do not meet …
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Jautienoje aptiktų Šiga toksiną išskiriančių Escherichia coli identifikavimas ir genominė analizė /
… coli (STEC) is one of the most common foodborne pathogens, characterized by the synthesis of Stx1 and/or Stx2 toxins. STEC is associated with numerous human diseases worldwide, ranging from mild diarrhea to hemorrhagic colitis (HC), hemolytic uremic syndrome (HUS) and thrombotic …
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Computational approaches to understanding infectious disease
… or animals, or acquired through ingestion of contaminated food or water or environmental exposure. Infectious diseases cause roughly 20% of annual deaths worldwide, including many children under the age of five. In developing countries, these diseases remain a major public health problem. They …
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The role of supplementary feeding sites in vulture conservation in South Africa
… at SFS amounted to an estimated 3301 tonnes of food per year. An amount equivalent to 83% of the food requirements of all vultures in the region. I show that different vulture species have varying access to this resource depending on their range. Food provisioning was highly skewed to only 17% …
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Fish Consumption Based PFAS Risk Assessment for Recreational Anglers in Chicago, IL & Benton Harbor, MI
… method for exposure through consuming a contaminated food item, which included an Average Daily Dose (ADD), Hazard Quotient (HQ), and a Hazard Index (HI) (Erdal, S., 2007; US EPA, 2015). Exposure model assumptions included PFAS concentration values from Miranda et al. paired with EPA’s …
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Development and Evaluation of a Multiplex Suspension Array Protocol for the Detection of Enteric Pathogens from Clinical Specimens
Foodborne illnesses are a significant public health challenge in the United States, with an estimated 9.4 million illnesses annually attributed to the consumption of contaminated food, of which 59% are estimated to be caused by viruses, 39% by bacteria and 2% by parasites. Timely detection and …
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THE BIPC MINOR TRANSLOCASE MEMBRANE PROTEIN OF THE BURKHOLDERIA TRANSLOCON
… It is transmittable subcutaneously, through contaminated food and water, and through the air if aerosolized. B. pseudomallei can survive harsh conditions and is intrinsically highly antibiotic resistant. Historically, a strain of the Burkholderia family has been utilized as a biological …
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