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.

A new model of fractional Casson fluid based on generalized Fick’s and Fourier’s laws together with heat and mass transfer

Abstract: A new technique for modelling the fractional model of Casson fluid is used. More exactly, the Caputo fractional model has been developed using the generalized Fick’s and Fourier’s laws. The magnetohydrodynamics free convection flow of Casson fluid in a channel has been considered. A new transformation is applied to the energy and mass equations and then solved by using the Laplace and Fourier sine transformations jointly. The final solutions are presented in terms of special function, namely, the Mittag-Leffler function. The effects of various physical parameters have been portrayed in graphs and tables and discussed.

Coordination behavior and biopotency of N and S/O donor ligands with their palladium(II) and platinum(II) complexes

Abstract: Some metal complexes of Schiff bases have been prepared by the interactions of palladium(II) and platinum(II) chloride with 5-chloro-1,3-dihydro-3-[2-(phenyl)-ethylidene]-2H-indol-2-one-hydrazinecarbothioamide(L1H) and 5-chloro-1,3-dihydro-3-[2-(phenyl)-ethylidene]-2H-indol-2-one-hydrazinecarboxamide(L2H), in bimolar ratios. All the new compounds have been characterized by elemental analyses, conductance measurements, molecular weight determinations, IR and 1H NMR spectral studies. The spectral data are consistent with a square planar geometry around Pd(II) and Pt(II) in which the ligands act as neutral bidentate and monobasic bidentate ligands, coordinating through the nitrogen and sulfur/oxygen atoms. Free ligands and their metal complexes were screened for their antimicrobial activity on different species of pathogenic fungi and bacteria and their biopotency has been discussed.

ρ0 photoproduction in ultraperipheral relativistic heavy ion collisions at sNN=200 GeV

Abstract: Photoproduction reactions occur when the electromagnetic field of a relativistic heavy ion interacts with another heavy ion The STAR Collaboration presents a measurement of rho(0) and direct pi(+)pi(-) photoproduction in ultraperipheral relativistic heavy ion collisions at root s(NN) = 200 GeV We observe both exclusive photoproduction and photoproduction accompanied by mutual Coulomb excitation We find a coherent cross section of sigma(AuAu -> Au*Au*rho(0)) = 530 +/- 19(stat) +/- 57(syst) mb, in accord with theoretical calculations based on a Glauber approach, but considerably below the predictions of a color dipole model The rho 0 transverse momentum spectrum (p(T)(2)) is fit by a double exponential curve including both coherent and incoherent coupling to the target nucleus; we find sigma(inc)/sigma(coh) = 029 +/- 003 (stat) +/- 008 (syst) The ratio of direct pi(+)pi(-) to rho(0) production is comparable to that observed in gamma(p) collisions at HERA and appears to be independent of photon energy Finally, the measured rho(0) spin helicity matrix elements agree within errors with the expected s-channel helicity conservation

Stage-dependent effects of retinoic acid on regenerating urodele limbs

Abstract: Following amputation through the distal zeugopodium, regenerating limbs of larvalAmbystoma mexicanum and pre and post-metamorphicPleurodeles waltlii were treated with 150 μg of retinoic acid (RA) per gram of body weight, at the dedifferentiation, early bud, medium bud, late bud or early redifferentiation stages of regeneration. The effect of RA on regenerate morphogenesis differed as a function of the stage at which it was administered. When given during dedifferentiation or at early bud stages, RA evoked proximodistal duplications of stump segments in the regenerates. The maximum duplication index (DI) inAbystoma was achieved when RA was injected at 4 days post-amputation, which corresponds to the stage of dedifferentiation; and inPleurodeles at 10 days post-amputation, which corresponds to a stage midway between early bud and medium bud. When RA was administered at later stages, the DI declined progressively to zero or nearly zero by the stage of early redifferentiation in both species. The decline in DI was due to a decreased frequency of duplication, not to a decrease in the magnitude of duplication in individual regenerates. At the same time, there was an increase in hypomorphism and aberrant morphogenesis of both duplicating and non-duplicating regenerates. These results indicate that regenerative cells are differentially sensitive to RA in a stage-dependent way.