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Showing 1 to 20 of 71 for “"Physicochemical parameters"”.
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Diatom and protozoan community analysis and colonization on artificial substrates in lentic habitats
… process and relationship of physico-chemical parameters to diatom and protozoan communities colonizing polyurethane foam (PF) artificial substrates in lentic habitats. This was the first study to utilize multivariate techniques for comparison of protozoan and diatom communities The following …
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Monoclonal Analysis of Spontaneous and Induced Antibody Responses in Autoimmune New Zealand Mice
… hybridoma technology. Various immunochemical and physicochemical parameters of generated monoclonal antibodies were examined to provide a qualitative functional and structural description of such etiologically distinct antibody repertoires in the context of inherent cellular and humoral …
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The Role of Blackberry Grades and Fermentation Methods on Blackberry Kombucha Quality and Aroma Characteristics from Small-Scale Fermentation
… impact the final kombucha quality. First, the physicochemical parameters of U.S. No.1 and U.S. No.2 blackberries were analyzed, including pH, titratable acidity (TA), and total soluble solids (TSS), followed by aroma analysis using headspace-solid phase microextraction (HS-SPME) and gas …
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Anthropogenic Influence on Blackfin Sucker (Thoburnia atripinnis) Distribution, in the Upper Barren River System, Kentucky and Tennessee
… blackfin sucker sampling sites and certain physicochemical parameters could be impacting their inhabitance at these sites. Data collection and ground truthing occurred between September 2015 and June 2016. ArcGIS was used to extract land use proportions within 100m and 390m buffers around 41 …
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Water quality assessment and potential ecological risk of trace metals in sediments of some selected wetland across Limpopo Province; South Africa
… wetlands in Limpopo Province. The samples' physicochemical parameters were tested in the field and the laboratory. All the instruments used to test the physicochemical parameters of the water samples were calibrated first and all the measurements were done in triplicate. The water and …
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Bioavailability and toxicity of nickel to freshwater organisms : a modeling approach
… toxicity of many metals is largely influenced by physicochemical parameters such as water hardness, pH and dissolved organic matter. Consequently, a single water quality criterium may be too conservative for certain water bodies whereas it may not be protective enough for other water bodies. This …
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Comparative determination of human health risks associated with consumption of contaminated groundwater with lead in selected areas surrounding the former lead mine in Kabwe and non-mining areas in Lusaka, Zambia.
… was used to determine the levels of Pb and other physicochemical parameters in groundwater of former Pb mining areas in Kabwe and non-mining areas in Lusaka. The human health risk assessment was conducted by estimating the Daily intakes of groundwater in adults and children from mining areas and …
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Comparative determination of human health risks associated with consumption of contaminated groundwater with lead in selected areas surrounding the former lead mine in Kabwe and non-mining areas in Lusaka, Zambia.
… was used to determine the levels of Pb and other physicochemical parameters in groundwater of former Pb mining areas in Kabwe and non-mining areas in Lusaka. The human health risk assessment was conducted by estimating the Daily intakes of groundwater in adults and children from mining areas and …
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Operationalisation of FT-NIRS based real-time monitoring for optimisation of anaerobic digestion
… (PLS-R), using matched FT-NIRS and matched physicochemical parameters, were evaluated using root mean square error of cross-validation (RMSECV) and R2. Confidence Intervals (CI), using uncertainty modelling, and prediction errors are defined using Mean Absolute Prediction Error (MAPE) and …
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ΣΥΝΘΕΣΗ ΚΑΙ ΦΑΡΜΑΚΟΧΗΜΙΚΗ ΜΕΛΕΤΗ ΜΕΡΙΚΩΝ ΥΠΟΚΑΤΕΣΤΗΜΕΝΩΝ ΜΟΡΦΟΛΙΝΩΝ ΜΕ ΒΙΟΛΟΓΙΚΟ ΕΝΔΙΑΦΕΡΟΝ
… EFFECTS. THE VALUES OF THE TWO ABOVEMENTIONED PHYSICOCHEMICAL PARAMETERS ARE PREDICTED USING THE APPROPRIATE TAFT EQUATION AND REKKER'S HYDROPHOBIC FRAGMENTAL CONSTANT SYSTEM, COMPARED TO THOSEEXPERIMENTALLY FOUND AND THE RELIABILITY OF THE PREDICTIVE METHODS IS DISCUSSED. THE LETHAL DOSES …
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Μελέτη των σχέσεων μεταξύ των φυσικοχημικών παραγόντων υγειονολογικού ελέγχου και της ολικής μικροβιακής χλωρίδας υδάτινων οικοσυστημάτων: Εφαρμογή στην λίμνη Παμβωτιδα
… total microbial flora and a certain number of physicochemical parameters in a fresh-water ecosystem, is the subject of the present study. The seasonal and daily fluctuation was also investigated. Over November 1985 - October 1988 water samples were examined for the following parameters: …
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Correlation Between Bioassessments of Macroinvertebrates and Fishes and Natural Land Cover in Virginia Coastal Plain Watersheds
… was calculated for each stream's watershed. Physicochemical parameters, habitat metrics and other environmental data were also analyzed to determine if relationships existed between those parameters and biotic integrity. Unfragmented Natural Land Cover ranged from 7% to 82% at the catchment …
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Spatial and temporal patterns exhibited by select physicochemical and biological water quality parameters in Lake Texoma, Oklahoma and Texas.
… reservoir zones were performed on seventeen (17) physicochemical parameters from each of the eleven sampling stations and phytoplankton count data from one sampling station within each reservoir zone and physicochemical parameters were observed to exhibit a fixed spatial gradient. Strong density …
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ΣΥΝΘΕΣΗ ΚΑΙ ΦΑΡΜΑΚΟΧΗΜΙΚΗ ΜΕΛΕΤΗ ΜΕΡΙΚΩΝ ΥΠΟΚΑΤΕΣΤΗΜΕΝΩΝ 2'-ΥΔΡΟΞΥ- ΑΙΘΥΛ-ΑΜΙΝΟ'Η ΔΙΑΜΙΝΟ-ΒΟΥΤΥΡΟ-ΚΕΤΟΝΩΝ ΜΕ ΒΙΟΛΟΓΙΚΟ ΕΝΔΙΑΦΕΡΟΝ
… SYSTEM. THE VALUES OF THE TWO ABOVE MENTIONED PHYSICOCHEMICAL PARAMETERS AND THE RELIABILITY OF THE PREDICTIVE METHODS ARE DISCUSSED. THE LETHAL DOSES (RATS) OF THE DERIVATIVES ARE FOUND. THE ANTIINFLAMMATORY AND OR IMMUNOSUPPRESSIVE ACTIVITY INVIVO AND IN VITRO HAS BEEN CONDUCTED AND FOR THESE …
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An environmental study of the Lourens River estuary
… fences and access to the public is restricted. Physicochemical parameters exhibit seasonal variations and the estuary may be marine dominated in summer and river dominated during the wet season. Terrestrial and aquatic biota are generally depauperate. The poor ecological quality of the estuary …
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Evaluation of a mitochondrial test for the determination of chemical toxicity
… of using rat liver mitochondria respiratory parameters as a short-term toxicity test was investigated. Mitochondrial fractions were exposed to six concentrations of five chlorophenols. Respiratory parameters were measured and compared to control experiments. The toxicity of the chlorophenos, …
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Environmental fate and effects of atrazine, metolachlor, carbaryl and chlorothalonil in lotic ecosystems
… These effects are dependent on compound physicochemical characteristics, susceptibility of aquatic organisms, abundance in streams, and stream characteristics. Atrazine, metolachlor, carbaryl, and chlorothalonil have high usage rates in the U.S. and are detected in streams at …
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Pharmacokinetic Evaluation of a Novel Compound, Sn79, a Putative Sigma-2 Receptor Antagonist, By Intravenous and Oral Administration in Rats
… part of this project. Determination of various physicochemical parameters including aqueous solubility, chemical stability, Log P and pKa etc are presented. A number of in vitro tests necessary for predicting the compound's profile in the body were also performed. Single dose pharmacokinetic …
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Sedimentation threats to Red Sea corals : an ecological study of reefs in the Hurghada Region, Egypt
… differing sedimentation loads. A range of physicochemical parameters were measured in the field and related to a variety of reef health indicators. This was supported by laboratory based experiments examining the direct impact of sediment on coral bleaching and mucus production.Annual and …
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A Comparison of Water Quality Analyses and the Index of Biotic Integrity in Bull Creek, Southwest Missouri
… Results of regression analyses indicated that physicochemical parameters were not strong predictors of IBI scores. Data suggest determining the ecological integrity of streams is best achieved by an integrative approach measuring both chemical and biological parameters. The data presented in …
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