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 2196 for “"E. Coli"”.
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Directed evolution of antimutator E. coli
… used to engineer antimutators in Escherichia coli, Periodic Reselection for Evolutionarily Reliable Variants (PResERV). In this first PResERV experiment, I observe that the antimutator phenotype is due to mutations in genes involved DNA replication and RNA metabolism (polA, polB, and rne). In …
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Shedding light on E. coli phototaxis
… has been focused on phototaxis response in E. coli. I will review the current state of knowledge on chemotaxis and phototaxis and discuss the motivation behind this project in Chapter 1. In Chapters 2 and 3, I will describe a high-throughput framework for studying phototaxis in bacteria, which …
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Algorithms for E. coli genome engineering
Author summary: Lamba red recombineering is one of methods of performing genome engineering. However, this method of genome editing is not very specific and efficient and is highly dependent on the genomic regions that are targeted (integration sites). In this project we explored ways of …
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Herbicide Mediated Selection of Sulfonamide Resistant E. coli
… can select for sulfa-insensitive DHPS in E. coli. Since mobile sul genes also encode for sulfa-insensitive DHPS, the potential effect of asulam on the dissemination of the sul genes in a simulated bacterial community was assessed. These data suggested that asulam can promote sulfa-resistance …
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Mótstaða gegn E. Coli sýkingum í ærbroddi. Rannsókn á mismunandi fyrirbyggjandi aðgerða á mótefna magn gegn E. Coli sýkingum í ærbroddi
… aðferðir til að fyrirbyggja slefsýki af völdum E.coli Sýni voru tekin á tveim bæjum í Borgarfirði þar sem annar bólusetti allar tvílembdar og þrílembdar ær gegn E.coli og hinn gaf Lambboost. Einum bæ í Dölum sem gaf “lambatöflur”. Einum bæ í Grýtubakkahrepp við Eyjafjörð og einum bæ í Hróarstungu, …
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Examining Tantalum-Based Photocatalysts for Photoinactivation of E. coli
Escherichia coli (E. coli) is a bacterium that contaminates potable water sources, and can cause a host of gastrointestinal infections. It is valuable to explore alternative cost-effective, efficient ways to reclaim wastewater and sterilize potable water outside of the current methods. Solar power …
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E. COLI STEC MONITORING IN A ONE HEALTH APPROACH.
… of Shiga toxin-producing Escherichia coli (STEC) in dairy herds, employing a One Health approach to enhance surveillance and public health interventions. Recognizing the significant public health threat posed by STEC, particularly its association with severe gastrointestinal diseases …
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Evaluating Filter Materials for E. Coli Removal from Stormwater
… carried by stormwater, and Escherichia coli (E. coli) is commonly used as a microbial pollution indicator of surface water. The aim of this research was to investigate the removal of E. coli from stormwater using low-cost filter materials. Two industrial byproducts (steel slag and steel …
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Biosynthese des Metallzentrums von [NiFe]-Hydrogenasen aus E. coli
… drei Aspekte der Reifung der Hydrogenasen in E. coli näher untersucht: 1. Eine Deletion im carAB-Locus führt zum Verlust der Synthese aktiver Hydrogenasen in E. coli. Die Aktivität kann wiederhergestellt werden, wenn der Stamm mit einem carAB-tragenden Plasmid transformiert oder wenn er in …
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Isolation and Characterization of Bacteriophages Targeting Uropathogenic E. coli
… bacterial infections, caused by uropathogenic E. coli (UPEC). Conventionally, UTI’s are treated with antibiotics, such as sulpha-mathoxazole/trimethoprim and ampicillin. However, a significant proportion of UPEC strains have become resistant to these antibiotics, resulting in a significant burden …
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Studying the role of noise in E. coli chemotaxis
… The chemotaxis signaling network of Escherichia coli, using which these bacteria modulate their random walk-like run/tumble swimming pattern to navigate their environment, is a paradigm for the role of noise in cell signaling. The E. coli chemotaxis network thus has been my model system of choice …
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Dynamics of E. coli genome and cytosol under antibiotics
… some of these response phenotypes in Escherichia coli testing different antibiotic classes and growth conditions. We study the short (<15 s) time-scale fluctuation dynamics of fluorescently-tagged chromosomal loci and cytosolic aggregates, which report for the state of locus ”compaction” and the …
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The growth of E. coli at various phosphate concentrations
… effects of phosphate on the bacterium E. coli in synthetic media. Growth was measured in batch and continuous flow cultures using both turbidimetric and respirometric techniques. The results obtained were used to formulate a hypothesis concerning the stimulation of algae by inorganic …
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Bacterial Source Tracking of E. coli in a Constructed Wetland
… sequence differences in the <em>Escherichia coli </em>malate dehydrogenase (<em>mdh</em>) gene were used to distinguish between strains isolated from pigeon and cattle feces. Fourteen <em>E. coli</em> isolates were taken from cattle and pigeon fecal samples and sixteen <em>E. coli …
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Trace phosphodiesterase contamination of commercially prepared E. coli alkaline phosphatase
This document only includes an excerpt of the corresponding thesis or dissertation. To request a digital scan of the full text, please contact the Ruth Lilly Medical Library's Interlibrary Loan Department (rlmlill@iu.edu).
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Characterization of β-lactamases and Porins in Uropathogenic E. coli
Uropathogenic Escherichia coli, the predominant causative agent of urinary tract infections, are becoming increasingly resistant to commonly utilized β-lactam antibiotics leading to higher medical costs, prolonged treatment from persistent infections, and increased mortality. This rising resistance …
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Mechanistic studies on chorismate mutase-prephenate dehydrogenase from E. coli
… reactions in the biosynthesis of tyrosine in E. coli and other enteric bacteria. Chorismate mutase catalyzes the pericyclic rearrangement of chorismate to prephenate which is subsequently converted to (4-hydroxyphenyl)pyruvate through an oxidative decarboxylation reaction catalyzed by prephenate …
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