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 54 for “"quantitative Polymerase Chain Reaction (qPCR)"”.
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Arousal patterns, fungal loads, and wing damage in a surviving population of little brown bats (Myotis lucifugus)
… load (<em>n</em> = 56) was evaluated through quantitative polymerase chain reaction (qPCR). High autumn temperatures (>10°C) favored growth of the fungus, while mid-hibernation temperature (3.2°C) was unfavorable. The mean torpor bout length (TBL) was similar to bats uninfected by WNS (16.8 …
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An experimental investigation into the mechanisms of bacterial evolution
… I will develop a growth assay utilizing the quantitative polymerase chain reaction (qPCR) to provide real-time enumeration of genetic marker abundance within bacterial populations. Second, I will focus on horizontal gene transfer in <em>E. coli</em> occurring through a process called …
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Diversity of the marine cyanobacterium Trichodesmium : characterization of the Woods Hole culture collection and quantification of field populations
… clade had similar pigmentation. I developed a quantitative polymerase chain reaction (qPCR) method to distinguish between these two clades. In field populations of the Atlantic and Pacific Oceans, the qPCR method revealed that clade II Trichodesmium spp. were more prominent than clade I in the …
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Persistence of Bacteroides ovatus under simulated sunlight irradiation
… propidium monoazide (PMA) treatment and quantitative polymerase chain reaction (qPCR) detection, the decay rates of B. ovatus were determined in the presence of exogenous photosensitizers and salinity up to 39.5 parts per thousand at 27oC. UVB was found to be important for B.ovatus decay, …
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Evaluation of a Paratuberculosis Quantitative Polymerase Chain Reaction Assay with Microscopic Correlation
… were tested with a commercial paratuberculosis quantitative polymerase chain reaction (qPCR) assay and had a sensitivity of 92%. To determine assay specificity, 21 FFPE tissues from animals without gastrointestinal disease combined with 13 FFPE tissues from non-ruminant animals (frog, dove, …
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Biodegradation of QACs in lake and river water and effects on the microbial community
… and generally increased with repeated amendment. Quantitative polymerase chain reaction (qPCR) results showed a higher abundance of several ARGs (qacF, mexB, and sul1) in Mississippi River water than in Trout Lake samples. ARGs also tended to increase in abundance with repeated QAC amendments and …
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Managing Phomopsis Stem Canker of Sunflower Using Improved Diagnosis and Quantification of the Causal Pathogens
… of the disease with effective diagnostics, two quantitative polymerase chain reaction (qPCR) assays were designed from the translation elongation factor region (EF1-α) of <em>D. helianthi</em> and <em>D. gulyae</em>. The specificity of the two qPCR assays was validated by examining the assays …
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CaV3.2 Channels and BKCa-Mediated Feedback in Vascular Smooth Muscle
… pressure myography, immunohistochemistry, quantitative polymerase chain reaction (qPCR) and computational modeling. In initial work, perforated patch electrophysiology was used in concert with Ca2+ imaging to illustrate the coordinated interplay between CaV3.2 and two other Ca2+ permeable …
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Metagenomic Analysis of Antibiotic Resistance Genes in the Fecal Microbiome Following Therapeutic and Prophylactic Antibiotic Administration in Dairy Cows
… by Illumina paired-end HiSeq sequencing and quantitative polymerase chain reaction (qPCR). Illumina sequences were analyzed using MG-RAST and the Antibiotic Resistance Gene Database (ARDB) via BLAST. Abundance of ampC, ermB, tetO, tetW, and 16S rRNA genes were determined using qPCR. All data …
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A Framework for Standardized Monitoring of Antibiotic Resistance in Aquatic Environments and Application to Wastewater, Recycled Water, Surface Water, and Private Wells
… and cefotaxime-resistant Escherichia coli. Quantitative polymerase chain reaction (qPCR)- and culture-based protocols were developed and pilot tested in two independent laboratories on a set of six water matrices: wastewater, recycled water, and surface water from six different wastewater …
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Spatial Relationship between the Trichloroethylene Degrading Bacteria Dehalococcoides Sp., Sulfate Reducers and Archaea during Reductive Dechlorination
… TCE. The DNA analysis was performed by using quantitative polymerase chain reaction (qPCR) and fluorescent in situ hybridization (FISH). In this study concentrations of Archaea were higher in all reactors than other microorganisms under study. In the type 1 reactor, with increasing …
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Determination of soybean cultivar resistance to soybean cyst nematode with quantitative polymerase chain reaction
… of soybean roots by H. glycines with real-time quantitative Polymerase Chain Reaction (qPCR), a prelude to differentiation of resistance levels in soybean cultivars. Two experiments were conducted. In the first one, a consistent inoculation method was developed using to provide active …
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Alendronate Alters Single Cell Gene Expression of Cortical Osteoblast Lineage Cells During Bone Loss
… analyze their gene expression profiles using the quantitative polymerase chain reaction (qPCR). The mice used for the study were divided into 4 treatment groups, including ovariectomized mice (OVX) and sham surgical controls (SHAM), treated with or without the anti-resorptive bisphosphonate drug …
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Synthetic Functionalized Scaffolds for Culture and Maintenance of Primary Human Hepatocytes
… Analysis of RNA levels combined with 5 quantitative polymerase chain reaction (qPCR) demonstrated an increase in gene expression for hepatocyte-‐specific markers.</p>
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Analysis of the efficacy of a constructed wetland in treating human fecal contamination
… methods to enumerate indicator bacteria and quantitative polymerase chain reaction (qPCR) method to quantify the human host-specific Bacteroides 16S rRNA genetic marker. Constructed wetlands behave as sinks and transform pollutants to improve the quality of surface runoff. The Alexandra Canal …
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Diversity of the marine cyanobacterium Trichodesmium : characterization of the Woods Hole culture collection and quantification of field populations
… clade had similar pigmentation. I developed a quantitative polymerase chain reaction (qPCR) method to distinguish between these two clades. In field populations of the Atlantic and Pacific Oceans, the qPCR method revealed that clade II Trichodesmium spp. were more prominent than clade I in the …
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Investigating Prostaglandin E2 activation of the p38 pathway of oesophageal squamous cell carcinoma
… profiles were studied over time respectively by quantitative polymerase chain reaction (qPCR) and western blot. The role of p38 was assessed by addition of a specific inhibitor, SB203580, to the cells under investigation. Results and Discussion: It was shown that PGE2 alone could not trigger …
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Impact of heated passive headspace concentration on DNA recovery from semen in fire-scene evidence
… protection. For unheated swabs with gasoline, quantitative polymerase chain reaction (qPCR) amplification of long-target amplicon signals (T.Large) was undetectable or extremely low, while interpretable STR profiles were still obtained. After 6 hours of heating at 90 °C, gasoline-contaminated …
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Excretion of Antibiotic Resistance Genes by Dairy Calves
… class I integron gene, intI1, were measured by quantitative polymerase chain reaction (qPCR). No tetC or intI was detected. There was no significant effect of antibiotic treatment on the absolute abundance (gene copies/ g wet manure) of any of the ARG except ermF, which was lower in the …
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Characterizing the Persistence of Sewage Enterococci in Mississippi Coastal Waters
… filtration to enumerate enterococci, and Quantitative Polymerase Chain Reaction ( qPCR) to quantify enterococcal DNA. To assess genetic diversity, BOX-PCR fingerprints of sewage and environmental isolates were compared using UPGMA cluster analysis and Simpson's diversity index. To study …
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