Archives-December  

The FT-IR and FT-Raman spectra of P-Chloroaniline (PCA) have been recorded and analyzed. The optimized geometry, and harmonic vibrational wave numbers of PCA have been investigated with the help of B3LYP scaled quantum mechanical (SQM) method supplemented with 6-311++G** basis set. The infrared and Raman spectra were predicted theoretically from the calculated intensities. The observed and simulated spectra were found to be well comparable. In the investigation, we adopted density functional theory (DFT) combined with quantum chemical calculations to determine the first-order hyperpolarizability.

Now a days in pharmaceutical cadre, multiparticulate dosage forms have shown much importance over single-unit dosage forms. The main objective of designing multiparticulate dosage form is to develop a reliable formulation that has advantages over single unit formulation. It is devoid of the danger of alteration in drug release profile and formulation behavior due to unit to unit variation. The present research emphasizes mainly on qualitative study of “Bottom-Spray Wurster Technology”, by formulation of multiparticulate modified release pellets of tolterodine- tartrate. The aim of the present study is to investigate the feasibility of the Wurster process for preparing modified release pellets and subsequently to evaluate the effects of some independent process variables i.e. inlet air temperature, product temperature, exhaust temperature, atomization speed, spray pump speed and atomization air volume.

This paper attempts to look at how information and communication technology continually influence the people, their lives and practices in general in developing countries, and examine whether it is for better or for worse. Dependency of low-income groups on information technology is not a mere phenomenon, but a solid hard-ground fact, and has a number of benefits as well as costs. However, at the end it is suggested that in addition to ICT being more advantageous than disadvantageous for third world countries, more effort needs to be put in educating the users of such technology, so that the costs associated with their use can be minimized, and the benefits maximized.

In this paper we introduce the new type of transportation problem called South east corner rule . We solve the transportation problem using OR approach in analysis ,design phases and we use the java programming language to model the problem . The results obtain from both solutions are compared to make analysis & prove the object oriented model correctness . We proved that the both results are identical & have the same results when solving the problem using the south east corner rule .

The effects of aqueous leaf extracts of different concentrations of Butea monospermal (Lam) Taub (Fabaceae), Limonia acidissima L. (Rutaceae) Semecarpus anacardium L. (Anacardiaceae) from Pathardi Tahsil (longitude190 09? N, latitude 750 10? E) Dist Ahmednagar were bioassayed in August 2008 on germination and seedling growth of Raphanus sativus L . var. ‘Hybrid 11’. Seed germination was promoted 13 to 21% by Butea, 3.58% by Limonia while Semecarpus inhibited by 10.71% at 10-1 concentration. Data was analyzed by appropriate statistical method. Inhibition at higher and stimulation at lower extract concentrations were recorded. Pot culture experiments will be arranged.

The purpose of this study was to examine Biology students’ weaknesses as far as graph work is concerned. The target population was SHS 3 students offering biology as an elective science subject in Senior High Schools in the Cape Coast Metropolis during the 2009/2010 academic year. However, the accessible population was elective biology students from six schools in the Cape Coast Metropolis. At each school an intact class was randomly selected and used. In all a sample size of 230 students was used. The study revealed that elective biology students have difficulty with providing headings, an appropriate scale, and labeling the axes of graphs.

The study was carried out to investigate the bacteriological status of freshly sliced water melon in mile III market Port Harcourt. A total of 20 sliced water melons was collected while one whole water melon collected was used as control in this study. The control sample was properly washed with sterile water and sliced aseptically. A sterile knife was used to cut 1.0g from each water melon sample and homogenized on a sterile mortar and pestle. The resultant homogenate was pipette (1.0ml) into 9.0ml of distilled water and serially diluted. The 104 dilution was plated out on Nutrient and MacConkey agar plates respectively using spread plate technique. The plates were incubated at 370c for 24 hours. The cultured plates were examined for colony growth and identification of isolates. The result showed that bacteria isolated from the sliced water melon were Staphylococcus aureus, Escherichia coli , Bacillus spp and Proteus with percentage bacterial count of 414 (45.8%). 324 (35.5%), 144 (15.8%), and 30 (3.3%.) respectively. The control sample showed a scanty growth of staphylococcus aurus. In conclusion, since the control had only a colony of staphylococcus on culture plate after it has been hygienically processed, contamination of the sliced water melon maybe due to poor sanitary condition employed by the vendors during processing and packaging. This is of public health concern as these organisms are known causes of food born diseases and food poisoning.

In this study an attempt has been made to describe the analysis of epidemiological study by Bayesian methods and apply this methodology to district level child mortality of Uttar Pradesh to assign rank to each district for rural and urban separately. The specific objectives of this study are to analysis of epidemiological study by use of fixed effect modeling and random effect modeling in Bayesian setup. To assign rank to each district by this suggest applying strategies to reduce child mortality in those district for those ranks are poor in Uttar Pradesh. The modified retrospective cohort study design used here. For fixed effect modeling beta-binomial modeling approach is used and for random effect modeling logit link function is used. The posterior estimates came in both cases under squared error loss function.

Equalization techniques compensate for the time dispersion introduced by communication channels and combat the resulting inter-symbol interference (ISI) effect. The purpose of an adaptive equalizer is to operate on the channel output such that the cascade connection of the channel and the equalizer provides an approximation to an ideal transmission medium. This paper compares existing adaptive algorithm for channel equalisation for both DFT and DCT based OFDM system. Simulations results show that performance of Transform Domain Variable stepsize Griffith LMS(TVGLMS) algorithm in channel equalization performs with better convergence speed and better error misadjustment than the LMS algorithm. Further simulation results shows that DCT based OFDM system outperforms DFT –OFDM in terms of BER and PAPR .

In metalworking, rolling is a metal forming process in which metal stock is passed through a pair of rolls. Rolling is classified according to the temperature of the metal rolled. If the temperature of the metal is above its recrystallization temperature, then the process is termed as hot rolling. If the temperature of the metal is below its recrystallization temperature, the process is termed as cold rolling. In terms of usage, hot rolling processes more tonnage than any other manufacturing process, and cold rolling processes the most tonnage out of all cold working processes. This article describes the use of advanced tubing inspection NDT methods for boiler and heat exchanger equipment in the petrochemical industry to supplement major turnaround inspections. The methods presented include remote field eddy current, magnetic flux leakage, internal rotary inspection system and eddy current.