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 14 of 14 for “"microbial activities"”.
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Nutrient fluxes and soil microbial processes
… species on nutrient cycling, soil properties and microbial activities. In this study, six broadleaved species were growing at the same site with similar condition in terms of soil type, land use history and climate. Thus, the potential effects on biogeochemical cycling could be attributed to tree …
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Effectiveness of Wastewater Treatment for Selected Contaminants Using Constructed Wetlands in Mediterranean Climates
… (HRTs). These factors may have an impact on microbial habitat for attachment, microbial activities, and filtering capabilities of the systems. As water scarcity and loss of microhabitat issues are becoming more imminent in California, free water surface (FWS) flow constructed wetlands show …
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ORGANIC MATTER IN ANOXIC PORE WATER FROM GREAT BAY, NEW HAMPSHIRE
… in DOC was coupled to seasonal changes in microbial activities and the bioturbation of marine benthic organisms. In deeper sediments, the seasonal changes in DOC were hypothesized to be coupled to a temperature induce adsorption/desorption mechanism.</p><p>The molecular size of pore water …
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Soil carbon dynamics in the upper Mersey estuarine floodplain, northwest England : implications for soil carbon sequestration
… of humic substances, adsorption capacity, and microbial activities. The historically contaminated Upper Mersey Estuarine floodplain was selected as the study site. The results indicated that the study area has elevated concentration of heavy metals with arsenic, chromium, copper, lead, and zinc …
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Synthetic Alkyl Glycolipids as Therapeutic Agents: Their Synthesis as Potential iNKT Cell Stimulators and their Anti- Microbial Properties
… thesis is the synthesis of glycolipids for anti-microbial studies and to act as iNKT cell stimulatory ligands. Simple glycolipids, L-aspartic acid based glycolipids, glycoglycerolipids and L-serine based glycolipids were explored. Simple galactosyl glycolipids containing O- and N-glycosidic …
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Effects of plant flavonoids on the fate of polynuclear aromatic hydrocarbons in rhizosphere soil
… improved aeration condition and the active soil microbial community sustained by root exudates. Whether certain root exudates would influence PAH degradation or bioavailability in soil is not adequately understood. Although various plant flavonoids, important components of root exudates, have …
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Investigations into the roles and molecular mechanisms of LanC-like proteins
… methyllanthionine. Among the various biological activities that lanthipeptides exhibit, the anti-microbial activities shown by many members of the family (hence named lantibiotics) have drawn the most attention and make them promising antibacterial drug candidates. One of the posttranslational …
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Microbial-Induced Calcium Carbonate Precipitation: from micro to macro scale
Microbial-Induced Calcium Carbonate (CaCO3) Precipitation (MICP) is a biological process in which microbial activities alter the surrounding aqueous environment and induce CaCO3 precipitation. Because the formed CaCO3 crystals can bond soil particles and improve the mechanical properties of soils …
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Performance of septic tanks for pharmaceutical removal and their impact to river water quality.
… on removal, as biodegradation is influenced by microbial activities and can increase with increasing temperature. For most pharmaceuticals, no temperature effect was found. However, lower concentrations of metformin and sanitary determinands at 30°C, highlight the potential for a seasonal effect …
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Bioaugmentation and biostimulation of a South African coal-based Technosol as a mine rehabilitation strategy
… availability and establishing an appropriate microbial consortium. This study investigated the improvement of Technosol fertility through biostimulation and bioaugmentation. By introducing a diverse microbial community, typically associated with healthy soils and initially absent in mine …
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Some physico-chemical and biological aspects of urea
… of urea is rapid and can be related to soil microbial activities. The reaction rate of the chemical hydrolysis of urea is very slow and insignificant in comparison with the biological or catalytic hydrolysis. Urea-nitrogen loss through ammonia volatilization may immediately follow urea …
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Chemo-morphological characterisation and some biological activities of pelargonium sidoides DC.
… with the phytochemical content, and to the antimicrobial activity of P. sidoides extracts. Morphological characterisation of accessions of P. sidoides was done using IPGRI/IITA/BAMBNET list for Bambara groundnut. Principal Component Analysis (PCA) and Cluster Analysis (CA) were used to evaluate …
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Poly(o-methoxyaniline): Synthesis, Doping and Composites
… properties including anti-oxidant and anti-microbial activities. Based on the properties of characterized POMA samples, especially conductivity and thermal stability that are critical for thermal processing, TSA was located as the suitable inorganic dopant to synthesize POMA that can be melt …
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An assessment of Eddy Correlation technique in marine habitats
… where the O₂ consumption was observed due to microbial activities (respirations). It clearly showed that the eddy correlation systems using O₂ optode could be used for measuring O₂ flux in the marine system. Although the results of the ECO and O₂ microprofile were similar, the ECO results were …