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Search Results: 1 - 10 of 402750 matches for " Vijay M. Telmore "
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Determination of Lanthanides, Thorium, Uranium and Plutonium in Irradiated (Th, Pu)O2 by Liquid Chromatography Using α-Hydroxyiso Butyric Acid (α-HIBA)  [PDF]
Pranaw Kumar, P. G. Jaison, Vijay M. Telmore, Sumana Paul, Suresh K. Aggarwal
International Journal of Analytical Mass Spectrometry and Chromatography (IJAMSC) , 2013, DOI: 10.4236/ijamsc.2013.11009
Abstract:

An HPLC method is presented for the separation and determination of lanthanides (Lns), thorium (Th), uranium (U) and plutonium (Pu) from irradiated (Th, Pu)O2. Individual separation of Lns, Th, U and Pu is a challenging task becauseof 1) lanthanideshavingsimilar physical and chemical properties, 2) presence of complex matrix like irradiated fuel and 3) the co-existence of multiple oxidation states of Pu. Different procedures were developed for separation of individual lanthanides and actinides.The individual lanthanides were separated on a dynamically modified reversed phase (RP) column using n-octane sulfonic acid as an ion interaction reagentand employingdual gradient(pH and concentration) of α-hydroxyisobutyric acid (HIBA). In order to improve the precision on the determination of Lns, terbium (Tb) was used as an internal standard. The method was validated employing simulated high level liquid waste. Concentrations of lanthanides viz. lanthanum (La) and neodymium (Nd) in the dissolver solution were determined based on their peak areas. Th, U and Pu were separated on a RP column using mobile phase containing HIBA and methanol. Since Pu is prone to exist in multiple oxidation states, all the oxidation states were converted into Pu (IV) using H2O2 in 3M HNO3. Under the optimized conditions, Pu(IV) eluted first followed by Th and U. The concentrations of Th, U and Pu were determined by standard addition method andwere found to be 1.10 ± 0.02 mg/g, 5.3 ± 0.3 μg/g and 27 ± 1 μg/g, respectively, in the dissolver solution of irradiated fuel. These values were in good agreement with the concentration of Th determined by biamperometry and those of U and Puby isotope dilution thermal ionization mass spectrometry.

Topical Use Of Corticosteroids In Dermatology
Motghare Vijay,Thawani Vijay,Parate S M
Indian Journal of Dermatology , 1995,
Abstract: Topical corticosteroids still constitute one of the largest groups of drugs being used in dermatology. Prescribing of this group of drugs was studied in dermatology out a€"patient department of Govt. Medical College Hospital, Nagpur by randomly auditing the prescriptions in the Hospital Pharmacy. Out of 600 prescriptions monitored, 14 could not be deciphered, 136 contained prescriptions for topical steroids, 37 had in addition systemic preparations and the 47 were only prescribed systemic drugs. Data with regard to age and sex and the diagnosis were noted. The prescriptions were scrutinized for mentioning of dosage form, quantity, frequently, site of application and duration of topical steroids. The importance of these parameters has been discussed along with the report of the findings of the study. The topical steroids prescribed have been discussed along with the report of the findings of the study. The topical steroids prescribed have been classified according to potency.
From open resources to educational opportunity
M. S. Vijay Kumar
Research in Learning Technology , 2005, DOI: 10.3402/rlt.v13i3.11221
Abstract: Since MIT's bold announcement of the OpenCourseWare initiative in 2001, the content of over 700 of its courses have been published on the Web and made available for free to the world. Important infrastructure initiatives have also been launched recently with a view to enabling the sustainable implementation of these educational programmes, through strengthening organizational capacity as well as through building open, standards-based technology. Each of these initiatives point to a rich palette of transformational possibilities for education; together with the growing open source movement, they offer glimpses of a sustainable ecology of substantial and quality educational resources. This discussion piece will highlight some of the educational opportunity presented by MIT's current information technology-enabled educational agenda and related initiatives, along with their strategic underpinnings and implications. It will address various dimensions of their impact on the form and function of education. It will examine how these ambitious programmes achieve a vision characterized by an abundance of sustainable, transformative educational opportunities, not merely pervasive technology.
Genetic Algorithm Based QoS Aware Adaptive Subcarrier Allocation in Cognitive Radio Networks  [PDF]
Dipak P. Patil, Vishal A. Wankhede, Vijay M. Wadhai
Wireless Engineering and Technology (WET) , 2015, DOI: 10.4236/wet.2015.64009
Abstract: In this paper, an adaptive subcarrier allocation scheme with reconfiguration of operating parameters for Cognitive Radio Networks (CRN) is presented. A QoS-conscious spectrum decision frame work is projected, where spectrum bands are determined by considering the application requirements as well as the dynamic nature of the spectrum bands. The novel subcarrier allocation algorithm is developed to fulfill different performance objective as a solution for subcarrier allocation and power allocation problem for Cognitive Radio (CR) users in CRNs. It employs operating frequency parameter modification using Proportional Resource Algorithm and Genetic Algorithm (GA). The multi objective optimization problem with equality and inequality constraint is considered. Moreover, a dynamic subcarrier allocations scheme is developed based on GA to decide on the spectrum bands adaptively dependent on the time-varying CR network capacity. The proposed algorithm targets to achieve maximum data rate for each subcarrier, maximize the overall network throughput and maximize the number of satisfied user under the constraints of bandwidth and guarantee Quality of Service (QoS) requirement from dynamic spectrum management (DSM) perspective. Moreover, it determines the best available channel.
Mixed connective tissue disorder : A Clarification (le)
Gandhi Vijay,Bhattacharya,Baruah M
Indian Journal of Dermatology, Venereology and Leprology , 1998,
Abstract:
Irregular graph for lattice
M. Vijay Kumar,P. Srinivas
Pure Mathematical Sciences , 2012,
Abstract:
Use of hydrogen peroxide in electrocautery procedures
Gandhi Vijay,Bhattacharya,Baruah M
Indian Journal of Dermatology, Venereology and Leprology , 1998,
Abstract:
Low Correlation Sequences over the QAM Constellation
M. Anand,P. Vijay Kumar
Mathematics , 2006,
Abstract: This paper presents the first concerted look at low correlation sequence families over QAM constellations of size M^2=4^m and their potential applicability as spreading sequences in a CDMA setting. Five constructions are presented, and it is shown how such sequence families have the ability to transport a larger amount of data as well as enable variable-rate signalling on the reverse link. Canonical family CQ has period N, normalized maximum-correlation parameter theta_max bounded above by A sqrt(N), where 'A' ranges from 1.8 in the 16-QAM case to 3.0 for large M. In a CDMA setting, each user is enabled to transfer 2m bits of data per period of the spreading sequence which can be increased to 3m bits of data by halving the size of the sequence family. The technique used to construct CQ is easily extended to produce larger sequence families and an example is provided. Selected family SQ has a lower value of theta_max but permits only (m+1)-bit data modulation. The interleaved 16-QAM sequence family IQ has theta_max <= sqrt(2) sqrt(N) and supports 3-bit data modulation. The remaining two families are over a quadrature-PAM (Q-PAM) subset of size 2M of the M^2-QAM constellation. Family P has a lower value of theta_max in comparison with Family SQ, while still permitting (m+1)-bit data modulation. Interleaved family IP, over the 8-ary Q-PAM constellation, permits 3-bit data modulation and interestingly, achieves the Welch lower bound on theta_max.
Involvement of prostaglandins in inflammation induced by latex of Calotropis procera
Vijay L. Kumar,Yatin M. Shivkar
Mediators of Inflammation , 2004, DOI: 10.1080/09511920410001713583
Abstract: INTRODUCTION: The aerial parts of the plant Calotropis procera produce milky white latex that causes inflammation of the skin and mucous membranes. Prostaglandins are one of the mediators released in an inflammatory response following induction of cyclooxygenase (COX). In the present study, we have evaluated the role of prostaglandins in inflammatory response elicited by the latex of C. procera.
Inhibition of Calotropis procera Latex-Induced Inflammatory Hyperalgesia by Oxytocin and Melatonin
Biswa M. Padhy,Vijay L. Kumar
Mediators of Inflammation , 2005, DOI: 10.1155/mi.2005.360
Abstract: The latex of the wild growing plant Calotropis procera produces inflammation of the skin and mucous membranes upon accidental exposure. On local administration it elicits an intense inflammatory response due to the release of histamine and prostaglandins that is associated with hyperalgesia. In the present study we have evaluated the anti-inflammatory and antinociceptive activity of oxytocin and melatonin against rat paw edema induced by dried latex (DL) of C procera and compared it with that against carrageenan-induced paw edema. Aqueous extract of DL of C procera or carrageenan (1%) was injected into the subplantar surface of the rat paw and the paw volume was measured at 0, 1, 2, 3, 4, 6, 10, and 24 hours. The associated hyperalgesic response and functional impairment were also evaluated concomitantly by dorsal flexion pain test, motility test, and stair climbing ability test. The inhibitory effect of oxytocin and melatonin on edema formation and hyperalgesic response was compared with dexamethasone. DL-induced edema formation was maximum at 2 hours and was associated with decreased pain threshold and functional impairment. Treatment with melatonin significantly attenuated the edematous response while both oxytocin and melatonin increased the pain threshold and improved functional parameters. Both oxytocin and melatonin significantly inhibited the hyperalgesia associated with DL-induced paw edema. Oxytocin was found to be as effective as melatonin in ameliorating the hyperalgesic response. However, it was found to be less effective than melatonin in attenuating edema formation.
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