Aligarh Muslim University

About: Aligarh Muslim University is a education organization based out in Aligarh, Uttar Pradesh, India. It is known for research contribution in the topics: Population & Adsorption. The organization has 8218 authors who have published 16416 publications receiving 289068 citations. The organization is also known as: AMU.

Production of K∗(892)0 and ϕ (1020) in p–Pb collisions at √sNN = 5.02 TeV

Abstract: The production of K$^{*}$(892)$^{0}$ and $\phi$(1020) mesons has been measured in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV. K$^{*0}$ and $\phi$ are reconstructed via their decay into charged hadrons with the ALICE detector in the rapidity range $-0.5 < y <0$. The transverse momentum spectra, measured as a function of the multiplicity, have p$_{\mathrm{T}}$ range from 0 to 15 GeV/$c$ for K$^{*0}$ and from 0.3 to 21 GeV/$c$ for $\phi$. Integrated yields, mean transverse momenta and particle ratios are reported and compared with results in pp collisions at $\sqrt{s}$ = 7 TeV and Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV. In Pb-Pb and p-Pb collisions, K$^{*0}$ and $\phi$ probe the hadronic phase of the system and contribute to the study of particle formation mechanisms by comparison with other identified hadrons. For this purpose, the mean transverse momenta and the differential proton-to-$\phi$ ratio are discussed as a function of the multiplicity of the event. The short-lived K$^{*0}$ is measured to investigate re-scattering effects, believed to be related to the size of the system and to the lifetime of the hadronic phase.

Microwave assisted fabrication of La/Cu/Zr/carbon dots trimetallic nanocomposites with their adsorptional vs photocatalytic efficiency for remediation of persistent organic pollutants

Abstract: Herein we report a greener microwave method for fabrication of La/Cu/Zr/carbon quantum dots trimetallic nanocomposites(La/Cu/Zr/CQDs TNCs). The structural aspects and chemical nature of the TNCs were considered using X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The optical band property of the trimetallic nanocomposites was examined using UV–vis spectroscopy. The adsorptional versus photocatalytic activity of the La/Cu/Zr/CQDs TNCs was investigated for the removal of a persistent organic pollutant i.e., malachite green dye and ampicillin antibiotic, under visible light irradiation. Overall, the current approach relates to green chemistry principles for fabrication La/Cu/Zr/CQDs trimetallic nanocomposites which hold promise for the development of surprisingly proficient adsorptional-photocatalytic systems. It has been observed that 96% ampicillin antibiotic and 86% of malachite green were degraded in 4 h of photoirridation under adsorption in dark followed by photocatalysis and coupled adsorptional/photocatalysis process.

Induction of oxidative stress by restraint stress and corticosterone treatments in rats.

Abstract: Chronic exposure to psychological stress in humans and restraint stress in experimental animals results in increased oxidative stress and resultant tissue damage. To study the contribution of stress hormones towards stress-induced oxidative processes in the brain, we investigated the response of important free-radical scavenging enzymes toward chronic administration of two doses of corticosterone (low dose: 10 mg/kg/day, high dose: 40 mg/kg/day) in rodents. After a 21-day experimental period, a significant decline in both superoxide dismutase and catalase was observed in both stressed and stress hormone-treated animals. The brain levels of glutathione as well as the activities of glutathione-S-transferase and glutathione reductase were also significantly decreased, while lipid peroxidation levels were significantly increased in comparison to controls. A direct pro-oxidant effect of stress hormones in the brain during physical and psychological stress was observed, indicating important implications for oxidative stress as a major pathological mechanism during chronic stress and a consequent target option for anti-stress therapeutic interventions.