[en] In this paper, some contiguous function relations and generating functions have been established for extended Jacobi polynomials. The results obtained here, are of very general nature. (author). 5 refs

[en] This article aims to find out some formulae for a generalized hypergeometric polynomial by a simple method. (author). 4 refs

[en] In India and in so many other countries, the science students are generally separated into two main streams: one opting mathematical sciences, the other studying biological sciences. As a result, medicos and biologists have no adequate knowledge of mathematical sciences. It causes a great drawback to them in order to be perfect and updated in their profession, due to the tremendous application of mathematics in bio-sciences, now-a-days. The main aim of this article is to emphasize on the need of the time to produce the mathematico-biologists in abundance for the better service of mankind. (author)

[en] This text is a comprehensive general introduction to the principles and applications of fluid mechanics

No abstract available

[en] Studies were undertaken to explore the possibility of inducing micromutations in quantitative characters of mung bean (Phaseolus aureus Roxb.) after seed irradiation. The characters studied were as follows: pod length, seeds per pod, 100-seed weight, and total plant yield. These characters were analyzed quantitatively to assess the extent of variation in M₁, M₂, and M₃ generations. All characters varied significantly (p ≥ 0.01) in the M₂ generation. In the M₃ generation, pod length, seeds per pod, and 100-seed weight were found significant at the 1% level; plant yield was only significant at 20 and 40 kR (1R = 2.58 × 10−4 C/kg) of gamma rays. Gamma ray treatments shifted the mean values of all characters, mostly in a positive direction in the M₂ and M₃ generations. The range of variability also increased positively. There was a considerable increase in genotypic variances, heritability, and genetic advances indicating the effectiveness of gamma doses in inducing polygenic mutations governing quantitative traits. The genetic variability increased at all dose levels but it was not linear with dose. Estimates of heritability and genetic advance increased in all characters but the different traits responded differently to the mutagenic treatments. (author)

[en] To determine the frequency of Hepatitis B and C virus infection in pregnant women and to assess whether it is more common in multigravida as compared to primigravida. Study Design: A Descriptive Cross Sectional study carried out in the out patient department of Gynaecology and Obstetrics department of Military Hospital, Rawalpindi from August to October 2010. Patients and Methods: An open and close-ended questionnaire was self designed for this purpose. Data relating to medical, surgical, gynaecological and obstetric history, with particular references to hospital admissions and intravenous interventions was collected through convenience sampling. One hundred and forty pregnant women were questioned. Results: The age of patients varied from 21 to 45 years (mean 28.66 years). Out of 140 females, 44 (31.4%) females were primigravidas while 96 (68.6%) were multigravidas. Eight (5.7%) females were found positive for HBsAg and 18 (12.8%) were found positive for HCV antibodies by third generation ELISA. It was observed that 0% primigravida and 8.3% cases of multigravida were HBsAg positive cases (p = 0.049). Frequency of HCV was 4.5% in primigravidas and 16.7% in multigravidas (p = 0.047). Various risk factors like, history of blood transfusion 27.1% ,and IV injection 91.4 %, were identified. The hepatitis B vaccination rate was only 24.3%. Conclusion: The frequency of Hepatitis B and C infection was 5.7% and 12.8% respectively in pregnant females as compared to the general population. The multigravidas were at a higher risk of HBV and HCV exposure than primigravida. (author)

[en] Ultraviolet radiation of 254 nm was found to cause a dose dependent, essentially irreversible inactivation of mushroom tyrosinase (EC1.14.18.1). Photoinactivation, tryptophan destruction and fluorescence loss obeyed first order kinetics and the apparent first order rate constants being 17.9 x 10^-2 min^-1, 3.7 x 10^-2 min^-1 and 6.3 x 10^-2 min^-1, respectively. In contrast to native tyrosinase, photoinactivated enzyme was found to be sensitive towards tryptic attack. The kinetics of tryptic hydrolysis suggested partial unfolding of tyrosinase by UV light. Fluorescence difference spectral studies indicated loss in transfer of excitation energy between tyrosine and tryptophan residues in photoinactivated tyrosinase. The influence of varying radiation dose on tryptic digestibility, intrinsic fluorescence and UV absorption are altogether consistent with the conformational changes associated with photoinactivation of tyrosinase. (author)

[en] This is the first report of beta-adrenergic receptor antagonist pharmaceuticals in United States wastewater effluent. - Beta adrenergic receptor antagonists (β-Blockers) are frequently prescribed medications in the United States and have been identified in European municipal wastewater effluent, however no studies to date have investigated these compounds in United States wastewater effluent. Municipal wastewater effluent was collected from treatment facilities in Mississippi, Texas, and New York to investigate the occurrence of metoprolol, nadolol, and propranolol. Propranolol was identified in all wastewater samples analyzed (n=34) at concentrations ≤1.9 μg/l. Metoprolol and nadolol were identified in ≥71% of the samples with concentrations of metoprolol ≤1.2 μg/l and nadolol ≤0.36 μg/l. Time course studies at both Mississippi plants and the Texas plant indicate that concentrations of propranolol, metoprolol, and nadolol remain relatively constant at each sampling period. This study indicates that β-Blockers are present in United States wastewater effluent in the ng/l to μg/l range

[en] Ultraviolet irradiation of tyrosinase rapidly decreased the dopa oxidase activity of the enzyme. Hydrodynamic, kinetic and thermodynamic parameters revealed gross differences in the native and photoinactivated states of the enzyme. The native state of tyrosinase was characterized as a tetramer with a compact, globular and rigid conformation. However, the photoinactivated state of tyrosinase was thermodynamically less stable and unusually sensitive to temperatures as low as 35 ⁰C. From the dose dependent loss in conformational integrity, thermodynamic stability and catalytic activity of tyrosinase, it is speculated that there are various structural segments distributed throughout the enzyme molecule. These structural segments act as centres of major molecular forces which hold the tetrameric enzyme into a compact and globular conformation. UV modification of these segments triggers a series of conformational changes leading to formation of a partially unfolded and catalytically inactive form of tyrosinase. (author)