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Search Results: 1 - 10 of 191439 matches for " D. Deka "
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Gluon evolution at low $x$ and the longitudinal structure function
Ranjita Deka,D. K. Choudhury
Physics , 1997, DOI: 10.1007/s002880050513
Abstract: We obtain an approximate analytical form of the gluon distribution using the GLAP equation with a factorization ansatz,and test its validity by comparing it with that of Gluck,Reya and Vogt at low $x$ regime. We also present calculations of the longitudinal structure functions.
Folklore and Northeast Indian History  [PDF]
Meeta Deka
Sociology Mind (SM) , 2011, DOI: 10.4236/sm.2011.14022
Abstract: The article intends to highlight folklore as an alternative source for the writing of history, particularly of the northeastern region of India, which is inhabited by numerous tribal communities, and where there is a dearth of written documents, archaeological and other evidences. Folklore as a source is important to explain and understand societies in the context of preserving cultural diversity and protecting minority cultures, especially those of indigenous peoples and marginalized social groups. With the increased growth of several ethnic identity crises in the region in recent times, the roots for their respective indigenous history are often traced to folklore.
MHD mixed convection and mass transfer from an infinite vertical porous plate with chemical reaction in presence of a heat source
N. Ahmed,D. Sarma,H. Deka
Applied Mathematical Sciences , 2012,
Sensitivity comparison of nested RT-PCR and TaqMan real time PCR for intravitam diagnosis of rabies in animals from urine samples
M. Dandale,C. K. Singh,V. Ramneek,D. Deka
Veterinary World , 2013, DOI: 10.5455/vetworld.2013.189-192
Abstract: Aim: Early diagnosis of dreadful rabies is of utmost importance to restrict number of contacts and timely administration of post exposure prophylaxis. The present study was conducted to evaluate the sensitivity comparison of Nested RT-PCR with TaqMan real time PCR technique for intravitam diagnosis of rabies in animals from urine samples. Materials and Methods: Advance molecular approaches Nested RT-PCR and TaqMan real time PCR was employed on 21 urine samples for intravitam diagnosis of rabies. Comparison of both the techniques was done with standard immunofluorescence test (FAT) applied on brain for postmortem confirmation of rabies. Result: Rabies viral RNA was detected in 6/21 (28.57%) and 11/21 (52.38%) urine samples by application of Nested RT-PCR and TaqMan real time PCR respectively. Sensitivity obtained from both the techniques was 62.50% and 78.94% respectively when compared with gold standard immunofluorescence test (FAT). Conclusion: TaqMan real time PCR can serve as more sensitive and viable approach for the intravitam diagnosis of rabies as compared to Nested RT-PCR for detection of rabies from urine of suspected animals. Clinical importance: This study may serve as background for future intravitam rabies diagnostics. [Vet World 2013; 6(4.000): 189-192]
Nested RT-PCR for ante mortem diagnosis of rabies from body secretion/excretion of animals suspected for rabies
M Dandale,C K Singh,V Ramneek,D Deka
Veterinary World , 2012, DOI: 10.5455/vetworld.2012.690-693
Abstract: Aim: The present study deals with molecular technique Nested RT-PCR for detection of rabies viral RNA from biological fluid samples (Saliva, Milk and Urine) collected from animal suspected for rabies and to compare the sensitivity of Nested RT-PCR applied for ante mortem diagnosis of rabies with conventional technique (immunofluorescence) applied on neural tissue. Materials and Methods: Nested RT-PCR was applied on 62 biological fluid specimens collected from rabies suspected animals. First round amplification with nested set of primers (RabN1 and RabN5) yielded 1477 bp product while amplification with second round primers (RabNfor and RabNrev) yielded 762 bp product. Sensitivity of the technique was compared in accordance with WHO recommended gold standard test viz. Immunofluorescence (FAT) applied on brain samples. Results: By Nested RT-PCR, viral RNA could be detected in 9/24 (37.50%) saliva samples, 2/17 (11.76%) milk samples and 6/21 (28.57%) urine samples. Confirmatory diagnosis by Immunofluorescence performed on brain sample revealed 18 true positive cases. Overall, Sensitivity of Nested RT-PCR technique employed on fluid samples was 69.23% when compared with immunofluorescence performed on brain samples. Conclusions: Early reliable ante mortem diagnosis of rabies can be obtained from biological fluid samples of animals suspected to be rabid when tested with Nested RT-PCR technique. [Vet World 2012; 5(11.000): 690-693]
Major congenital colobomatous disorders of the globe
Bhattacharjee Harsha,Islam A,Deka R,Chaudhury D
Indian Journal of Ophthalmology , 1986,
The obstetric outcome following treatment in a cohort of patients with antiphospholipid antibody syndrome in a tertiary care center
Dadhwal V,Sharma A,Deka D,Gupta B
Journal of Postgraduate Medicine , 2011,
Abstract: Background: Antiphospholipid antibody syndrome (APAS) is regarded as the most frequently acquired risk factor for thrombophilia. The obstetric manifestations of APAS include early or late pregnancy losses and complications like preeclampsia and fetal growth restriction. Its timely diagnosis and treatment can improve maternal and neonatal outcome. Aims: To study the pregnancy outcome of patients with APAS treated with heparin and aspirin. Settings and Design: This was a retrospective study of pregnancy outcome in 42 consecutive women with APAS, treated with heparin and aspirin. Materials and Methods: The case records of 42 diagnosed cases of APAS with pregnancy, over a 3-year period, were studied. The pregnancy outcome in this group was compared before and after treatment with heparin and low-dose aspirin in terms of abortions, intrauterine deaths and live birth rate. The outcome of the present pregnancy in terms of fetal and maternal complications was analyzed. Results: The mean age and average parity of women with APAS were 30.1±4.1 years and 3.2±1.2, respectively. Among the treated patients of APAS, 13 (30.9%) had preeclampsia and 9 (21.4%) had intrauterine growth restriction (IUGR). There were 2 (4.7%) intrauterine deaths, 4 (9.5%) missed abortions and 3 (7.1%) abruptio placentae. Women with APAS had a live birth rate of 4.6% before treatment and 85.7% in the index pregnancy after treatment. Conclusion: Treatment of pregnant women with APAS results in marked improvement in the live birth rate (4.6-85.7%). However, complications like preeclampsia and IUGR occur even after treatment, requiring strict monitoring and timely delivery.
Structure and Reverse Hydrogen Spillover in Mononuclear Au0 and AuI Complexes Bonded to Faujasite Zeolite: A Density Functional Study
Ajanta Deka
Journal of Catalysts , 2013, DOI: 10.1155/2013/467846
Abstract: We have studied the structure of mononuclear gold supported on acidic form of faujasite zeolite in two oxidation states, namely, 0 and +1, using density functional theory. The binding of the gold monomer to the zeolite support is stronger in the oxidation state +1 than in the oxidation state 0. For the oxidation state 0, the hydrogenated clusters AuH/(2H)-FAU, AuH2/H-FAU generated by stepwise reverse hydrogen spillover from bridging OH groups of zeolite are energetically preferred over the Au/(3H)-FAU structure. Reverse hydrogen spillover of all the three acidic protons from the zeolite to the Au monomer did not lead to a stable structure. The calculated reverse hydrogen spillover energy per hydrogen atom for zeolite supported AuH and AuH2 clusters are ?10.2 and ?5.1?kJ/mol, respectively, in the oxidation state 0, while in the oxidation state +1 it is 20.9?kJ/mol for zeolite supported Au+H cluster. 1. Introduction Oxide-supported transition metal clusters form an important class of system both for theoretical and experimental investigations mainly due to their very important applications as catalysts. The activity of supported metal clusters is found to be higher than bare clusters and these metal-support interfaces are believed to act as active sites for catalysis. The factors influencing the reactivity of supported clusters are the size, structure and oxidation state of the cluster, the nature of the support, and cluster support interaction. Zeolites form an important class of support material for nanoclusters because their pores and cavities facilitate the formation of size-selective clusters of nanometer and sub-nanometer dimensions. Also, the zeolite support enables the tuning of the charge state of the cluster, as it depends upon the concentration of the acidic centres on the support, which can be modified. Among the transition metals gold has been highly investigated due to its ability to catalyse a number of reactions like CO oxidation [1], water gas shift reaction [2], epoxidation of propylene, [3] vinyl chloride synthesis [4], and so forth. Spurt in research activities involving supported gold clusters began after the pioneering discoveries of Haruta et al. [5] and Hashmi and Hutchings [6] demonstrating strong catalytic activities of highly dispersed gold. The common metal oxide supports used for gold cluster catalysis are MgO, Al2O3, SiO2, TiO2, and so forth. It has been found by Vayssilov and R?sch [7] that transition metal clusters M6 with hydrogen impurity adsorbed on a zeolite support have more nearest neighbour M-O contacts than the
Diagnostic imaging, present & future
PK Deka
Journal of College of Medical Sciences-Nepal , 2010, DOI: 10.3126/jcmsn.v6i2.3608
Abstract: DOI: 10.3126/jcmsn.v6i2.3608 Journal of College of Medical Sciences-Nepal, 2010, Vol. 6, No. 2
Fermionic Formulas For Unrestricted Kostka Polynomials And Superconformal Characters
Lipika Deka
Mathematics , 2005,
Abstract: The problem of finding fermionic formulas for the many generalizations of Kostka polynomials and for the characters of conformal field theories has been a very exciting research topic for the last few decades. In this dissertation we present new fermionic formulas for the unrestricted Kostka polynomials extending the work of Kirillov and Reshetikhin. We also present new fermionic formulas for the characters of N=1 and N=2 superconformal algebras which extend the work of Berkovich, McCoy and Schilling. Fermionic formulas for the unrestricted Kostka polynomials of type $A_{n-1}^{(1)}$ in the case of symmetric and anti-symmetric crystal paths were given by Hatayama et al. We present new fermionic formulas for the unrestricted Kostka polynomials of type $A_{n-1}^{(1)}$ for all crystal paths based on Kirillov-Reshetihkin modules. We interpret the fermionic formulas in terms of a new set of unrestricted rigged configurations. Fermionic formulas for the N=1 and N=2 superconformal algebras are derived using the Bailey lemma by establishing new Bailey flows from the nonunitary minimal models to the superconformal models.
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