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 13 of 13 for “"pathogen survival"”.
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<i>Ixodes Scapularis</i> SRC Kinase Is Required for Rickettsial Pathogen Survival in Ticks
… and ROS production in order to increase its survival in ticks. Src kinase, a non-receptor protein-tyrosine kinase, is a major player in cell signaling. Src kinase has an impact on the spread and survival of <em>A</em>. <em>phagocytophilum</em> in ticks. Studies on Src kinase in <em>I. …
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Effect of Evaporative Cooling, Fat Content and Food Type on Pathogen Survival during Microwave Cooking
… more predictable, controlled and ensure control pathogens. This study concentrated on the effect of fat content, evaporative cooling and food type on the rate of food borne pathogen survival rates in microwave heated foods. Foods investigated in this study included fresh, raw broccoli spears; a …
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Effect of Standard Post-harvest Interventions of Fresh Vegetables on Bacterial Community Dynamics, Pathogen Survival and Antibiotic Resistance
… as soil amendments is an established source of pathogenic bacterial contamination. However, less is known about whether such soil amendments could serve as a source of transmission of antibiotic-resistant bacteria (ARB) or antibiotic-resistance genes (ARGs) via fresh produce. As such knowledge …
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Campylobacter jejuni Periplasmic Nitrate Reductase NapA as a Medium for Elucidating Molybdenum Cofactor Reactivity
… resistance. Although nitrate reduction aids in pathogen survival, it is also a geochemically essential process. Many enzymes closely related to NapA are involved in geochemical cycling and contain the same active site ligand structure. The ligand within these enzymes is called molybdenum …
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Effect of different marinade treatments on survival and morphology of pathogens in beef jerky
… used in this study was effective in reducing pathogen survival on inoculated beef jerky when compared to the control, which was evident by low microbial count in treated jerky samples compared to control. In order to reduce the survival of pathogens that are introduced to the surface of beef …
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Incidence and Management of Seed Transmission of Cylindrocladium Black Rot of Peanut in Virginia
… at high frequencies. During winter seed storage, pathogen survival remained high in seed stored at -13 and 4 C, but declined in some seed stored at 15 C and ambient temperatures. Speckled and normal seed with and without fungicide treatment was planted in steam-treated soil in the greenhouse and …
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Characterization of a secreted escherichia coli 086a:K61 protease that inactivates human coagulation FV
… coli (E.coli) O86a:K61 belongs to the Enteropathogenic E. coli (EPEC) group of pathogens. Acute gastroenteritis affects 2-4 billion people annually and EPEC is associated with 10-40% of hospitalized diarrhea cases globally. Coagulation Factor (F) V circulates as an inactive procofactor (Mr …
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Interaction of Bacillus Anthracis Exosporium Protein Bcla With Complement Factor H and Spore Persistence In The Lung
… the extent of complement activation and promotes pathogen survival and persistence in the infected host. Findings from this study are significant to understanding how to treat post-exposure prophylaxis and improve our knowledge of spores with the host immune system.</p>
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Fate of Foodborne Pathogens During Osmotic Dehydration and Subsequent Storage of Apples
… storage effect of osmotic dehydrated apples on pathogen survival was also tested for seven days at 4°C. Samples were withdrawn at appropriate time intervals, diluted with 0.1% peptone water and surface plated onto recovery media. Recovery of E. coli O157:H7 was compared on Tryptic Soy Agar + 50 …
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Evaluating the Persistence of Salmonella Tennessee and Lactobacillus brevis in Non-Alcoholic Beer under Low Pasteurization
Foodborne pathogens such as Salmonella have been shown to survive in non-alcoholic (NA) beer (< 0.5 % ABV). Standard pasteurization recommendations for NA beer range from 80-120 pasteurization units (PU; 73.3 to 74.5°C for 1 min). However, producers may want to use lower pasteurization temperatures …
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Thermal inactivation of Salmonella and Escherichia coli O157:H7 in heat treated, recycled used cooking oil
… with heat transfer during heat treatment. Thus, pathogen cells were resuspended in warmed (37°C), sterile vegetable oil (soybean oil). No difference in inoculation level was observed when an aqueous solution and sterile vegetable oil were compared as inoculum matrices. Volumetric measurement of …
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Effects of ambient temperature on mechanisms of pathogen transmission in house finches (Haemorhous mexicanus)
… important abiotic factor shaping the process of pathogen transmission because of its effects on hosts, pathogens, and interactions between them. However, most experimental studies demonstrating the effects of temperature on transmission remain correlative and often exclude endothermic taxa, which …