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this study was undertaken for the purpose to determine the concentration of caffeine in eight brands of soft drinks with the use of an Ultraviolet spectroscopy. This told us about the best brand among the different brands containing caffeine. The highest concentration of caffeine was found in Sting 500mL (560.29 µg/mL), so it is strongest CNS (central nervous system) stimulant among all samples and it is harmful for health. The lowest concentration of caffeine was found in 7up 500mL (29.71 µg/mL). So it is a weakest stimulant among all samples and can be sold in market
Optimization the production of extracellular lipase in culture of Bacillus cereus has been investigated. From 10 samples of diesel fuel polluted soil it was found that 3 samples was positive for the presence of B. cereus. Lipase production by B. cereus isolated from diesel fuel polluted soil was investigated and optimized. The enzyme production was increased with increasing time and maximum enzyme activity was obtained after 72 hrs of incubation. Effect of pH and temperature indicated that, the lipase production was maximum at pH 8.0 (60.2 U/ml) and at 35°C (55.25 U/ml). The lipase production was optimized in shake flask experiments. With a selected carbon sources, maltose (65.5 U/mL) and nitrogen source, peptone (66.25 U/mL) was suitable substrates for accelerating lipase production. The present study indicates that the various factors influenced enzyme production by the bacteria, it appears that the nature of the supplements had significantly influenced on the produc
Phonics skills are considered to be the predictors of reading disability, which is off late viewed as a language based disorder. The aim of the present study is to compare the phonics skills of high and low academic achievers across Bengali and English. A checklist consisting of three parameters was developed in both the languages to assess phonics skills. A total of 42 normally developing bilingual females who attended standard three to standard five in the age range eight to eleven years participated in the study. The participants were classified as high and low academic achiever based upon school performance. Significant differences were found in all the phonics skills in both the languages except vowel sound skill in Bengali and letter name in English. It is concluded that phonics tasks should be provided importance and during classroom curriculum as it distinguishes between high academic achievers from the low academic achievers.
The purpose of this study was to determine the concentrations of toxic metals (Cd, Hg, Cr, Pb, As) in meat at the Kumasi Central Abattoir, Ghana by using a Varian 220 Atom Absorption Spectrophotometer. The levels of toxic metals in meat (cow, pig, sheep, goat, grass cutter, deer) varied in concentration. The concentration of lead was above the tolerance level in all the meat samples with the highest concentration recorded in beef at 1.154 mg/kg and the lowest at 0.037 mg/kg in pork. The amount of mercury, Hg observed in the various meat samples fell within the range of 0.059 mg/kg to 0.012 mg/kg, a little over the tolerable level of 0.05 mg/kg. The highest mercury, Hg concentration was observed in grasscutter meat (0.071 mg/kg) and the lowest concentration in pork, which was observed at 0.012 mg/kg, with the former above the permissible limit and
Urban stormwater runoff carries pollutants that collect on impervious surfaces such as oil, dirt, chemicals, and lawn fertilizers directly to receiving water bodies (surface water, seepage water and ground water), where they seriously harm water quality. This study investigated the variability of pollutant build-up parameters in five different land use types. For this purpose stormwater samples were collected from five different land use types; residential, commercial, recreational, heavy traffic and industrial, around Guwahati city, Assam (India) and analysed to measure different build-up parameter. It was found that distribution of stormwater pollutants is highly influenced by the surrounding land use type. Coefficient of variation (CV) is derived for each of the selected build-up parameters for the different land uses. Industrial land uses showed relatively higher values of CV, indicating the highly variable nature of the pollutant build-up parameters within the sa
Geochemical Study of Crude Oil Samples to Evaluate Extent and Effect of Secondary Alteration Process (i.e. Biodegradation).
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Look at what USA did to Georgia (capital letter). Gtfo of there. Georgia was independent since 1990 and had no problems with Russia until your agents came in and installed a CIA agent at the post of the president.
This study was conducted at the University of Agriculture Makurdi Research Farm in the sub-humid Southern Guinea Savanna Zone of Nigeria, during the 2010 and 2011 cropping seasons to determine the effects of Bambara groundnuts (Voandzecia Subtonanea) (L) Verde biomass on soil physical and chemical properties. Five treatments (comprising 0, 5, 10, 15 and 20 t ha-1 of bambara groundnut biomass) were laid in a Randomized Complete Block Design (RCBD) and replicated three times. The biomass was incorporated as green manure after 120 days of planting bambara groundnut on the same piece of land. A composite soil sample was taken at planting while samples were taken on treatment basis at 30, 60 and 90 days after treatment application. The samples were analyzed at the NICANSOL laboratory following standard procedures. The results obtained showed that incorporation of bambara groundnut biomass had no significant effects on the particle size distribution of the soil. The green manure produced sig