Time filter

Source Type

Bodh Gaya, India

Magadh University is situated Bodh Gaya, in Bihar state, India. It is recognized by the University Grants Commission . The university is now governed by Bihar State University Act 1976. The university provides facilities for higher learning and research in the faculties of science, social science, humanities and commerce. Wikipedia.

Ahmad N.,Patna University | Sharma S.,Magadh University | Rai R.,University of Aveiro
Advanced Materials Letters

We present a simple and eco-friendly biosynthesis of silver nanoparticles using Pomegranate peel extract as the reducing agent. Peel extract of Pomegranate was challenged with silver nitrate (AgNO3) and chloroauric acid (HAuCl4) solution for the production of silver nanoparticles (AgNPs) and gold nanoparticles (AuNPs), respectively. The reaction process was simple for the formation of highly stable silver and gold nanoparticles at room temperature by using the biowaste of the fruit. The morphology and crystalline phase of the NPs were determined from UV-Vis spectroscopy, transmission electron microscopy (TEM), selected area electron diffraction (SAED) and X-ray diffraction (XRD) spectra. TEM studies showed that the average particle size of silver nanoparticles were 5 ±1.5 nm whereas the gold nanoparticles were found to be 10 ±1.5 nm. An effort has been also been made to understand the possible involved mechanism for the biosynthesis of the NPs. Presumably biosynthetic products or reduced cofactors play an important role in the reduction of respective salts to nanoparticles. © 2012 VBRI Press. Source

Yadavendu V.K.,Magadh University
Shifting Paradigms in Public Health: From Holism to Individualism

This transdisciplinary volume outlines the development of public health paradigms across the ages in a global context and argues that public health has seemingly lost its raison d'etre, that is, a population perspective. The older, philosophical approach in public health involved a holistic, population-based understanding that emphasized historicity and interrelatedness to study health and disease in their larger socio-economic and political moorings. A newer tradition, which developed in the late 19th century following the acceptance of the germ theory in medicine, created positivist transitions in epidemiology. In the form of risk factors, a reductionist model of health and disease became pervasive in clinical and molecular epidemiology. The author shows how positivism and the concept of individualism removed from public health thinking the consideration of historical, social and economic influences that shape disease occurrence and the interventions chosen for a population. He states that the neglect of the multifactorial approach in contemporary public health thought has led to growing health inequalities in both the developed and the developing world. He further suggests that the concept of 'social capital' in public health, which is being hailed as a resurgence of holism, is in reality a sophisticated and extended version of individualism. The author presents the negative public policy consequences and implications of adopting methodological individualism through a discussion on AIDS policies. The book strongly argues for a holistic understanding and the incorporation of a rights perspective in public health to bring elements of social justice and fairness in policy formulations. © Springer India 2013. All rights are reserved. Source

Verma R.K.,Magadh University
Journal of Thermal Analysis and Calorimetry

Workshops are important components of the quadrennial ICTAC conferences. A workshop on 'Challenges in Education in Thermal Analysis and Calorimetry' was organized during ICTAC-15 as part of the activities of the ICTAC's Education Committee which works with the aim of promoting education and training in thermal analysis and Calorimetry. The identification of compounds based on their decomposition temperatures similarly to the identification of species based on chromatographic retention data or IR/Raman spectra has long been desired by thermoanalysts. Unfortunately, reactions in the solid phase take place in several elementary steps. As it is well understood from the practice, the shape of thermoanalytical curves depends almost exclusively. Source

Mohanty K.B.,National Institute of Technology Tiruchirappalli | Singh M.,Magadh University
International Review of Electrical Engineering

This paper proposes a feedback linearization scheme for performance improvement of induction motor drive. This scheme decouples the rotor flux and the torque using P-I controllers with feedback linearization scheme. The control scheme is implemented in a stationary reference frame. P-I controllers for speed and flux loop are systematically designed. To reduce torque ripple and to improve torque and speed responses fuzzy torque compensator is designed with 16 fuzzy rules. The control scheme is simulated in SIMULINK environment and implemented in RTDS environment. Proposed scheme with P-I controllers and with fuzzy torque compensator are compared. Simulation results are validated with RTDS test results. © 2012 Praise Worthy Prize S.r.l. - All rights reserved. Source

Ahmad N.,Patna University | Sharma S.,Magadh University | Alam M.K.,Patna University | Singh V.N.,Indian Institute of Technology Delhi | And 3 more authors.
Colloids and Surfaces B: Biointerfaces

Plants respond to heavy metal stress by metal complexation process like production of phytochelations or by other metal chelating peptides. In this paper we report the synthesis of silver nanoparticles (AgNPs) from the room dried stem and root of Ocimum sanctum. The broth of the plant is used as a reducing agent for the synthesis of Ag nanoparticles at room temperature. The reaction process was simple and was monitored by ultraviolet-visible spectroscopy (UV-vis). There was formation of highly stable silver nanoparticles in the solution. The morphology and crystalline phase of the NPs were determined from transmission electron microscopy (TEM), selected area electron diffraction (SAED) and X-ray diffraction (XRD) spectra. Transmission Electron Microscopy studies showed that the silver nanoparticles obtained from roots and stem were of sizes 10 ± 2 and 5 ± 1.5nm, respectively. The various phytochemicals present within the ocimum plant result in effective reduction of silver salts to nanoparticles but their chemical framework is also effective at wrapping around the nanoparticles to provide excellent robustness against agglomeration. © 2010 Elsevier B.V. Source

Discover hidden collaborations