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 17 of 17 for “"bacterial reduction"”.
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The behavior of uranium in the environment : bacterial reduction of an aqueous uranium species
… as the electron acceptor in lieu of oxygen. The reduction of U(VI) to U(IV) removes uranium from solution and forms an insoluble compound known as uraninite. Ultraviolet/Visible Spectroscopy was used to analyze uranium ion complexion with several oxazine dyes that included Brilliant Cresyl Blue, …
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Bacterial influence on uranium oxidation reduction reactions : implications for environmental remediation and isotopic composition
The bacterial influence on the chemistry and speciation of uranium has some important impacts on the environment, and can be exploited usefully for the purposes of environmental remediation of uranium waste contamination. It is important to understand both from a scientific and environmental …
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Effects of UV Irradiation on the Reduction of Bacterial Pathogens and Chemical Indicators of Milk
… of milk. The influence of temperature on bacterial reduction in UV irradiated milk was tested. Commercially processed skim, reduced fat (2%), and whole milk samples were inoculated with a naladixic acid resistant E. coli O157:H7 surrogate (ATCC 25922), maintained at or brought to 4oC and …
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Investigating the impact of three washing methods on antimicrobial efficacy, texture, and color of spinach and tomatoes
… it is important to re-evaluate their antibacterial effectiveness as various parameters determine the effectiveness of each method. Quality aspects should also be considered for a well-rounded analysis of the impact of current washing methods on produce after treatment and throughout …
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Antibacterial and Laundering Properties of Ams and Phmb as Finishing Agents for Healthcare Workers Uniforms
… therefore, a need for protection against bacterial penetration and transmission is realized. The purpose of this research is to examine whether antibacterial finishes can effectively reduce the presence of bacteria that have the potential for penetration and transmission on healthcare …
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Columnar denitrification of a munitions waste
… nitrogen from a munitions waste by means of bacterial reduction was investigated using packed anaerobic columns. The feasibility of using a munitions waste high in organic carbon (Water Dry Process Waste) as the organic carbon source was also investigated. Simultaneously the biological …
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Comparative Efficacy of MUS System vs Er:YAG Laser System in Reducing Bacterial Biofilms in Root Canals
… according to the respective treatment protocols. Bacterial samples were collected pre- and post-instrumentation. Data were analyzed using an analysis of variance (ANOVA) with a significance level of P < .05, followed by Dunnett’s and Tukey's tests. The results demonstrated that Er:YAG SWEEPS …
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Effect of the GentleWave System on dentin microhardness and sealer penetration: an in vitro study
… solutions, has been lauded for its advantages in bacterial reduction, superior debris removal, and minimal dentin erosion. Samples (n=10) were randomly assigned to three groups: control (Group C), traditional root canal treatment (Group T), and GW with minimal instrumentation (Group G). Following …
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The Effects of Iron Oxidation State on Surface Chemistry and Structure of Iron-Bearing Smectites: Cation Fixation and Selectivity, Structural Iron Environment, and Dissolution
… a substantial amount of structural Fe. The reduction of structural Fe(III) invokes partial dehydroxylation, protonation, and site translocation of Fe(II) to alter the crystal structure. The structural changes, therefore, influence their surface properties such as layer charge, …
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Efficacy and impact of sanitizers in controlling pathogenic bacteria on irrigation water
… different concentrations for achieving a 3-log reduction of E. coli O157:H7 (EHEC), Salmonella (SM), or Listeria monocytogenes (LM). Additionally, the study examined their corrosive effects on aluminum and stainless steel, as well as their impact on plant and soil chemical and physical …
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Identifying cross-species regimens for the treatment of rapid-growing and slow-growing nontuberculous Mycobacterium pulmonary infections
… This conservation supports targeting mycobacterial bioenergetics as a strategy for cross-species therapeutic development. Drug activity was assessed using in vitro minimum inhibitory concentration (MIC) testing, Raw264.7 macrophage infection assays, and preclinical NTM lung infection …
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Statistical Evaluation of Rapid Biochemical Oxygen Demand Test for Monitoring Municipal Wastewater Quality
… (E-tATP) process and percent confirmatory bacterial reduction (%CBR) process that evaluates the aggressiveness of heterotrophic aerobic bacteria (HAB) communities as a means to determining the overall wastewater quality. Primary influent (PI) and final effluent (FE) samples from two …
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Antibacterial nanoparticle - decorated carbon nanotube - reinforced calcium phosphate composites as bone implants
… properties and does not possess any antibacterial property. Multi walled carbon nanotubes (MWCNTs), as one of the strongest and stiffest materials, have the potential to strengthen and toughen HA, thus expanding the range of clinical uses for the material. Furthermore, Silver …
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Advanced oxidative wastewater treatment using cavitational reactors
… be highly beneficial, resulting in ~ 6 log bacterial reduction revealing 99.9999% disinfection efficiency of the process.
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The sedimentology and diagenesis of copper-bearing rocks of the southern margin of the Damaran Orogenic Belt, Namibia and Botswana
… during diagenesis, as sulphides, by the bacterial reduction of groundwater sulphate. Both sedimentological and isotopic data point to a basement origin for the copper and silver. A model for ore genesis is proposed, involving the release of copper and silver from mineralized basement …
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Translational Pharmacokinetic-Pharmacodynamic Modeling and Simulation in the Development of Spectinamides, a Novel Class of Anti-Tuberculosis Agents
… drug efflux. Spectinamides bind to the 30S bacterial ribosomal subunit which interferes with ribosomal translocation, and ultimately results in inhibition of protein synthesis. They have potent <em>in vitro</em> activity against drug resistant <em>Mycobacterium tuberculosis (Mtb)</em>, and …
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Validation of Pathogen Surrogate Escherichia coli strains for Systemic Microbial Reductions in Fresh Beef Harvest and Processing
… was conducted to determine the overall level of bacterial reduction by multiple interventions over a two-day period. ATCC non-pathogenic surrogate strains of E.coli were utilized in this study to mimic the behavior of Salmonella and E.coli. Foreshanks of beef carcasses were inoculated a total of …