scispace - formally typeset
Search or ask a question
Institution

University of Rajasthan

EducationJaipur, India
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.


Papers
More filters
Book ChapterDOI
TL;DR: This current study is a comprehensive review of a variety of literature produced on the different enzymes that have been immobilized on various supporting materials, and reviews their use in sophisticated biosensors for metabolite control and in situ measurements of environmental pollutants.
Abstract: Immobilized enzymes can be used in a wide range of processes. In recent years, a variety of new approaches have emerged for the immobilization of enzymes that have greater efficiency and wider usage. During the course of the last two decades, this area has rapidly expanded into a multidisciplinary field. This current study is a comprehensive review of a variety of literature produced on the different enzymes that have been immobilized on various supporting materials. These immobilized enzymes have a wide range of applications. These include applications in the sugar, fish, and wine industries, where they are used for removing organic compounds from waste water. This study also reviews their use in sophisticated biosensors for metabolite control and in situ measurements of environmental pollutants. Immobilized enzymes also find significant application in drug metabolism, biodiesel and antibiotic production, bioremediation, and the food industry. The widespread usage of immobilized enzymes is largely due to the fact that they are cheaper, environment friendly, and much easier to use when compared to equivalent technologies.

184 citations

Journal ArticleDOI
TL;DR: It is concluded that chlorpyrifos induces severe testicular damage and results in reduction in sperm count and thus affect fertility, and application of such insecticide should be limited to a designed programme.
Abstract: Organophosphates are among the most widely used synthetic insect pesticides. The widespread use of organophosphates has stimulated research into the possible existence of effects related with their reproductive toxic activity. Present study was therefore, undertaken to assess the effects of chlorpyrifos on testes, the main organ of male reproduction. Chlorpyrifos at the dose levels of 7.5, 12.5 and 17.5 mg/kg b. wt./day was administered orally to male rats of Wistar strain for 30 days to evaluate the toxic alterations in testicular histology, biochemistry, sperm dynamics and testosterone levels. The body weight of animals did not show any significant change, however, a significant reduction was observed in testes. Chlorpyrifos also brought about marked reduction in epididymal and testicular sperm counts in exposed males and a decrease in serum testosterone concentration. Histopathological examination of testes showed mild to severe degenerative changes in seminiferous tubules at various dose levels. Fertility test showed 85% negative results. A significant reduction in the sialic acid content of testes and testicular glycogen was noticed, whereas the protein and cholesterol content was raised at significant levels. All these toxic effects are moderate at low doses and become severe at higher dose levels. From the results of the present study it is concluded that chlorpyrifos induces severe testicular damage and results in reduction in sperm count and thus affect fertility. Small changes in sperm counts are known to have adverse affects on human fertility. Therefore, application of such insecticide should be limited to a designed programme.

184 citations

Journal ArticleDOI
Jaroslav Adam1, Dagmar Adamová2, Madan M. Aggarwal3, G. Aglieri Rinella4  +1008 moreInstitutions (100)
TL;DR: In this article, the Pb-Pb collisions were measured at root s(NN) = 5.02 TeV and their correlation with experimental observables sensitive to the centrality of the collision was investigated.
Abstract: We report measurements of the primary charged-particle pseudorapidity density and transverse momentum distributions in p-Pb collisions at root s(NN) = 5.02 TeV and investigate their correlation with experimental observables sensitive to the centrality of the collision. Centrality classes are defined by using different event-activity estimators, i.e., charged-particle multiplicities measured in three different pseudorapidity regions as well as the energy measured at beam rapidity (zero degree). The procedures to determine the centrality, quantified by the number of participants (N-part) or the number of nucleon-nucleon binary collisions (N-coll) are described. We show that, in contrast to Pb-Pb collisions, in p-Pb collisions large multiplicity fluctuations together with the small range of participants available generate a dynamical bias in centrality classes based on particle multiplicity. We propose to use the zero-degree energy, which we expect not to introduce a dynamical bias, as an alternative event-centrality estimator. Based on zero-degree energy-centrality classes, the N-part dependence of particle production is studied. Under the assumption that the multiplicity measured in the Pb-going rapidity region scales with the number of Pb participants, an approximate independence of the multiplicity per participating nucleon measured at mid-rapidity of the number of participating nucleons is observed. Furthermore, at high-pT the p-Pb spectra are found to be consistent with the pp spectra scaled by N-coll for all centrality classes. Our results represent valuable input for the study of the event-activity dependence of hard probes in p-Pb collisions and, hence, help to establish baselines for the interpretation of the Pb-Pb data.

184 citations

Journal ArticleDOI
Jaroslav Adam1, Dagmar Adamová2, Madan M. Aggarwal3, G. Aglieri Rinella4  +986 moreInstitutions (95)
TL;DR: The pseudorapidity density of charged particles, dNch/dη, at midrapidity in Pb-Pb collisions has been measured at a center-of-mass energy per nucleon pair of √sNN=5.02 TeV as discussed by the authors.
Abstract: The pseudorapidity density of charged particles, dNch/dη, at midrapidity in Pb-Pb collisions has been measured at a center-of-mass energy per nucleon pair of √sNN=5.02 TeV. For the 5% most central collisions, we measure a value of 1943 ± 54. The rise in dNch/dη as a function of √sNN p is steeper than that observed in proton-proton collisions and follows the trend established by measurements at lower energy. The increase of dNch/dη as a function of the average number of participant nucleons, ⟨Npart⟩, calculated in a Glauber model, is compared with the previous measurement at √sNN=2.76 TeV. A constant factor of about 1.2 describes the increase in dNch/dη from √sNN=2.76 to 5.02 TeV for all centrality classes, within the measured range of 0%–80% centrality. The results are also compared to models based on different mechanisms for particle production in nuclear collisions.

184 citations

Journal ArticleDOI
TL;DR: In this paper, a resistor model is presented for easy estimation of effective thermal conductivity (ETC) of highly porous metal foams based on experimental data available, which is based on numerical simulations in which ETC of a random two-phase medium is being comprised of contributions from both the phases.

183 citations


Authors

Showing all 15080 results

NameH-indexPapersCitations
Rakesh K. Jain2001467177727
J. Pluta12065952025
Sudhir Raniwala11359144168
Rashmi Raniwala11357944076
Sanjay Jain10388146880
Mirko Planinic9446731957
Manish Sharma82140733361
Nikola Poljak7839320795
Hari M. Srivastava76112642635
Radhey S. Gupta7137718078
Ashwani Kumar6670318099
Amit Kumar65161819277
Rashmi Gupta5242850962
Allan R. Oseroff481217029
Vinod K. Aswal465569917
Network Information
Related Institutions (5)
Banaras Hindu University
23.9K papers, 464.6K citations

93% related

Panjab University, Chandigarh
18.7K papers, 461K citations

92% related

Aligarh Muslim University
16.4K papers, 289K citations

92% related

University of Delhi
36.4K papers, 666.9K citations

91% related

University of Madras
11.3K papers, 211.1K citations

90% related

Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
20233
202233
2021218
2020242
2019163
2018143