University of Rajasthan

About: University of Rajasthan is a education organization based out in Jaipur, India. It is known for research contribution in the topics: Chemical shift & Derivative (chemistry). The organization has 15058 authors who have published 15733 publications receiving 117400 citations. The organization is also known as: Rajasthan University.

Longitudinal double-spin asymmetry and cross section for inclusive neutral pion production at midrapidity in polarized proton collisions at s=200GeV

Abstract: We report a measurement of the longitudinal double-spin asymmetry ALL and the differential cross section for inclusive π0 production at midrapidity in polarized proton collisions at √s=200 GeV. The cross section was measured over a transverse momentum range of 1

Bianchi Type-V Bulk Viscous Fluid String Dust Cosmological Model In General Relativity

Abstract: Bianchi Type-V bulk viscous fluid string dust cosmological model in General Relativity is investigated. It has been shown that if coefficient of bulk viscosity (ζ) is inversely proportional to the expansion (θ) in the model then string cosmological model for Bianchi Type-V space-time is possible. In absence of bulk viscosity (ζ), i.e. when ζ → 0, then there is no string cosmological model for Bianchi Type-V space-time. The physical and geometrical aspects of the model are also discussed.

Sperm motility inhibitory effect of the benzene chromatographic fraction of the chloroform extract of the seeds of Carica papaya in langur monkey, Presbytis entellus entellus.

Abstract: Aim: To assess the contraceptive efficacy of the benzene chromatographic fraction of the chloroform extract of the seeds of Carica papaya in langur monkeys. Methods: The test substance was given p.o. to five monkeys at 50 mg/kg body weight/day for 360 days. Control animals (n = 3) received olive oil as vehicle. Sperm parameters as per World Health Organization standards, sperm functional tests, morphology of testis and epididymis, haematology, clinical biochemistry, serum testosterone and libido were evaluated. Following completion of 360 days treatment the animals were withdrawn from the treatment and the recovery pattern was assessed by semen analysis and sperm functional tests. Results: Total inhibition of sperm motility was observed following 60 days of treatment that continued until 360 days study period. Sperm count, percent viability and percent normal spermatozoa showed a drastic decline following 30 days of treatment. Sperm morphology showed predominant mid piece abnormalities. Sperm functional tests scored in sterile range. Histology and ultrastructure of testis revealed vacuolization in the Sertoli cells and germ cells. Loss of cytoplasmic organelles was evident in spermatocytes and round spermatids. Histology and ultrastructure of epididymis of treated animals were comparable to those of control animals. Hematological and serum clinical parameters and testosterone levels fluctuated within the control range throughout the study period. Recovery was evident following 60–120 days of treatment withdrawal. Conclusion: The results suggest that the benzene chromatographic fraction of the chloroform extract of the seeds of Carica papaya shows contraceptive efficacy without adverse toxicity, mediated through inhibition of sperm motility. (Asian J Androl 2008 Mar; 10: 298–306)

A Review on First- and Second-Generation Biofuel Productions

Abstract: Renewable energy resources are in great urge to reduce dependability on fossil fuels as well as to minimize greenhouse gas emission. Since more than a decade, biofuel industries especially bioethanol and biodiesel have been highly expanding in conjugation with agriculture crop production. First generation biofuel production is highly relied on the agriculture crops such as corn, sugarcane, sugar beets, soybean, and canola. Therefore, inherent competition between foods versus fuels remained debatable in the society from the last few years. Current technological advances in the research and development opened an avenue for next-generation biofuel production from different feedstock such as agriculture waste products, crop residues, and cellulosic biomass from high-yielding grass species. This review explains the current status of first-generation biofuel production and their challenges at net energy benefit as well as competition of feedstock for food and fuel production. This chapter also focuses on recent advances in research and development of the second-generation biofuel production from different feedstocks. Future direction of agriculture industries and energy industries has been discussed to feed the ever-increasing world population and to fuel the world’s highest energy demanding sector, transportation.