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Guwāhāti, India

Zaman F.A.,CRH Medical | Sheikh S.,Bn College | Das K.C.,Guwahati University | Zaman G.S.,King College | Pal R.,CRH Medical
Journal of Natural Science, Biology and Medicine | Year: 2014

Context: Tuberculosis (TB) affects the economically productive age group and has emerged as a disease of significant socioeconomic global burden. Aims: The aim of this study is to identify epidemiological factors responsible for TB and the clinico-social correlates influencing their compliance. Subjects and Methods: All new smear positive TB (NSP-TB) patients registered in Dhubri District Tuberculosis Center-Tuberculosis Unit during 2007 in Assam were included in this study. The study was performed by interview technique using a pre-tested questionnaire. Results: Nearly 90.76% of the participants were in the age group of 15-55 years and were predominantly unskilled workers and sole earning member of their family. 83.33% of the patients had symptoms of cough for more than 3 weeks and most of them (98.15%) lived in overcrowded houses. More than half of the patients had X-ray examination as their initial approach to diagnosis. More males (59.18%) than females (40.82%) reported to the health institution within first 6 weeks after the onset of symptom and among them 91.84% were declared cured after completion of therapy and while, only 40% of the patients initiating treatment after 6 weeks of the onset of symptoms were declared cured after completion of therapy. Conclusions: The prevalence of NSP-TB cases was more among the illiterate and underprivileged population who needs counseling and motivation for early intervention. © Journal of Natural Science, Biology and Medicine.

Mahesh P.,CSIR - Central Electrochemical Research Institute | Catherine J.K.,CSIR - Central Electrochemical Research Institute | Gahalaut V.K.,CSIR - Central Electrochemical Research Institute | Kundu B.,CSIR - Central Electrochemical Research Institute | And 17 more authors.
Gondwana Research | Year: 2012

We analyze GPS data from 26 sites located on the Indian plate and along its boundary. The large spatial coverage of the Indian plate by these sites and longer data duration helped us in refining the earlier estimates of the Euler pole for the Indian plate rotation. Our analysis suggests that the internal deformation of the Indian plate is very low (<1-2mm/year) and the entire plate interior region largely behaves as a rigid plate. Specifically, we did not infer any significant difference in motion on sites located north and south of the Narmada Son failed rift region, the most prominent tectonic feature within the Indian plate and a major source of earthquakes. Our analysis also constrains the motion across the Indo-Burmese wedge, Himalayan arc, and Shillong Plateau and Kopili fault in the NE India. © 2012 International Association for Gondwana Research.

Choudhury D.K.,Guwahati University | Choudhury D.K.,Physics Academy of North East | Pathak K.K.,Arya Vidyapeeth College
International Journal of Modern Physics A | Year: 2014

Considering the allowed range of slope ρ2 and curvature C of Isgur-Wise function for B meson, we obtain an allowed range of strong coupling constant αs as well as the QCD scale parameter Λ in a specific prescription. The allowed range of Λ is then used to obtain the theoretical bounds on Vcb in a potential model. The recent available data of Vcb are found to lie within this computed range 0.0375 ≤|Vcb|≤0.0410. © 2014 World Scientific Publishing Company.

Saikia N.,Guwahati University | Ahmed S.A.S.,Guwahati University
Physica Scripta | Year: 2011

The extended transformation method has been applied to the exactly solvable stipulated Morse potential and trigonometric Scarf potential, to generate a set of exactly solvable quantum systems (QSs) in any chosen dimension. Bound state solutions of the exactly solvable potentials are given. The generated QSs are generally of Sturmian form. We also report a system case-specific regrouping technique to convert a Sturmian QS to a normal QS. A second-order application of the transformation method is given. The normalizability of the generated QSs is generally given in Sturmian form. © 2011 The Royal Swedish Academy of Sciences.

Devi L.S.,Guwahati University | Bhattacharya C.,Banaras Hindu University | Chatterjee A.,University of Calcutta | Borthakur S.K.,Guwahati University | Irabanta Singh N.,Manipur University
International Journal of PharmTech Research | Year: 2014

Different biochemical reactions in our body generate free radicals and these are capable of damaging crucial biomolecules. Mushrooms have the capacity to destroy such free radicals formed in our body as they possess antioxidant properties. The purpose of this study was to determine the antioxidant activities of mushroom, Pleurotus cornucopiae collected from Eastern Himalayan region. Antioxidant activity was determined using reducing power assay, DPPH radical scavenging assay, chelating effect of ferrous ion and total antioxidant capacity assay. Ethanolic fraction from the above mentioned edible mushroom was also tested for total phenol, flavonoid, β-carotene, lycopene and ascorbic acid content. Findings showed that most of the EC50 values were more than 2 mg /ml except DPPH radical scavenging test. The extract exhibited 50% DPPH radical scavenging activity at only 1.5 mg /ml concentration. Estimated putative antioxidant components was in order of phenol > ascorbic acid > flavonoids > β-carotene > lycopene. Result implies that P. cornucopiae can be a potential source of natural antioxidants which may be used as a food supplement to treat various oxidative stress related diseases.

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