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Search Results: 1 - 10 of 3348 matches for " Ghosh Srabani "
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A Low - Cost Effective Therapy Of Pastular Dermatitis Atrophicans(PDA)
Ghosh Srabani,Lahiri Swapan Kr,Dutta Ajit Kr
Indian Journal of Dermatology , 1995,
Abstract: The clinical entity PDA mainly affects lower socio- economic group in tropical countries. Its cure/control poses a challenge to dermatologists. To evaluate a low a€" cost drug therapy, dapsone was tried among patients of chronic folliculitis of legs along with tropical providone a€" iodine application. Forty- two patients who came for regular follow a€" up revealed satisfactory result with marked improvement in about 70% cases with minimal side- effects. The antibacterial and immunomodulatory action of dapsone may be beneficial in these cases. The possible role of androgen triggering effect remains an open question in its pathogenesis and chronicity.
Incidence of dental caries in chronic urticaria
Kaur Surrinder,Ghosh Srabani,Kanwar A,Gauba A
Indian Journal of Dermatology, Venereology and Leprology , 1991,
Abstract: Three hundred patients of chronic urticaria were screened for dental affections. Sixty two (20.66%) patients were detected to have dental caries. Among the control group which com-prised of 100 patients, 20% had dental caries. There was thus no increased incidence of dental caries among patients with urticaria. Only 2 patients had remission of urticaria following treat-ment of caries. Dental caries therefore is probably not a cause of chronic urticaria.
Role of gastrointestinal parasites in urticaria
Ghosh Srabani,Kanwar A,Dhar Sandipan,Kaur Surrinder
Indian Journal of Dermatology, Venereology and Leprology , 1993,
Abstract: The role of gastrointestinal parasites as aetiological factor in chronic urticaria was evaluated in 300 patients. Fifty nine (19.66%) patients were detected to have intestinal parasites compared to 18% among the control group. The difference was statistically insignificant. No significant improvement was noted with specific treatment of helminthic infestation.
Fractal Structure of Molecular Clouds
Srabani Datta
Physics , 2001,
Abstract: Compelling evidence exists to show that the structure of molecular clouds is fractal in nature. In this paper, the author reiterates this view and, in addition, asserts that not only is cloud geometry fractal, but that they also have a common characteristic - they are similar in shape to the Horsehead nebula in Orion. This shape can be described by the Julia function f(x)= z^2 + c,where both z and c are complex quantities and c = -0.745429 + 0.113008i. The dynamical processes responsible for the production of these clouds seem to be turbulence followed by Brownian motion till high densities are reached, at which point structure formation is dictated by gravity. The author presents image analysis of four varied examples, namely those of the Horsehead nebula, Eagle nebula, Rosette nebula and Paley I nebula to prove her hypothesis. The images of these nebulae are analyzed for their box dimension using fractal analysis software and comparisons are made with the given Julia set.
Performance Enhancement of OFDM System with ICI Reduction Technique
Srabani Mohapatra,Susmita Das
Lecture Notes in Engineering and Computer Science , 2009,
Use of Site-Specifically Tethered Chemical Nucleases to Study Macromolecular Reactions
Mukherjee Srabani,Sousa Rui
Biological Procedures Online , 2003, DOI: 10.1251/bpo49
Abstract: During a complex macromolecular reaction multiple changes in molecular conformation and interactions with ligands may occur. X-ray crystallography may provide only a limited set of snapshots of these changes. Solution methods can augment such structural information to provide a more complete picture of a macromolecular reaction. We analyzed the changes in protein conformation and protein:nucleic acid interactions which occur during transcription initiation by using a chemical nuclease tethered to cysteines introduced site-specifically into the RNA polymerase of bacteriophage T7 (T7 RNAP). Changes in cleavage patterns as the polymerase steps through transcription reveal a series of structural transitions which mediate transcription initiation. Cleavage by tethered chemical nucleases is seen to be a powerful method for revealing the conformational dynamics of macromolecular reactions, and has certain advantages over cross-linking or energy transfer approaches.
Distributed Painting by a Swarm of Robots with Unlimited Sensing Capabilities and Its Simulation
Deepanwita Das,Srabani Mukhopadhyaya
Computer Science , 2013,
Abstract: This paper presents a distributed painting algorithm for painting a priori known rectangular region by swarm of autonomous mobile robots. We assume that the region is obstacle free and of rectangular in shape. The basic approach is to divide the region into some cells, and to let each robot to paint one of these cells. Assignment of different cells to the robots is done by ranking the robots according to their relative positions. In this algorithm, the robots follow the basic Wait-Observe-Compute-Move model together with the synchronous timing model. This paper also presents a simulation of the proposed algorithm. The simulation is performed using the Player/Stage Robotic Simulator on Ubuntu 10.04 (Lucid Lynx) platform.
Genetic Markers of Polycystic Ovary Syndrome: Emphasis on Insulin Resistance
Nuzhat Shaikh,Roshan Dadachanji,Srabani Mukherjee
International Journal of Medical Genetics , 2014, DOI: 10.1155/2014/478972
Abstract: Polycystic ovary syndrome (PCOS) is the most common endocrinopathy affecting women of childbearing age causing not only reproductive but also metabolic anomalies. PCOS women present with ovulatory dysfunction, abnormal hormones, hyperandrogenemia, obesity, and hyperinsulinemia. It is a heterogeneous disorder which results from interaction of multiple genes along with environmental factors. Insulin resistance is a central key element contributing to PCOS pathogenesis and is further aggravated by obesity. Insulin regulates metabolic homeostasis and contributes to ovarian steroidogenesis. Candidate gene analyses have dissected genes related to insulin secretion and action for their association with PCOS susceptibility. Although a large number of genomic variants have been shown to be associated with PCOS, no single candidate gene has emerged as a convincing biomarker thus far. This may be attributed to large amount of heterogeneity observed in this disorder. This review presents an overview of the polymorphisms in genes related to insulin signaling and their association with PCOS and its related traits. 1. Introduction Polycystic ovary syndrome (PCOS) is the major cause of anovulatory infertility affecting millions of women worldwide. Despite years of research and huge amounts of investment, the etiology of PCOS is still poorly understood [1]. It is typically characterized by chronic anovulation, excess androgen production, and presence of polycystic ovaries on ultrasound. Clinically these women present with irregular menses, hirsutism, acne and alopecia, and elevated LH?:?FSH ratio along with insulin and androgen excess. This syndrome also confers a greater risk of development of impaired glucose tolerance and subsequent type 2 diabetes mellitus (T2DM), as well as metabolic syndrome and cardiovascular diseases (CVD) in later life [2]. Insulin resistance, the hallmark feature of PCOS and its associated compensatory hyperinsulinemia, is seen in approximately 50–70% of affected women [3]. Central obesity is present in both lean and obese women with PCOS which further aggravates insulin resistance and worsens the aforementioned symptoms in these women [4]. 2. Insulin Resistance and PCOS Insulin which is a potent anabolic hormone controls diverse processes essential for tissue metabolism, growth, and survival. Binding of insulin to its receptor initiates a cascade of signaling events and activates an array of molecules by which insulin exerts its pleiotropic actions. The insulin receptor (INSR) is a membrane bound receptor with intrinsic tyrosine kinase
CFD evaluation of thermal convection inside the DACON convection sensor in actual space flight  [PDF]
Pradyumna Ghosh, M. K. Ghosh
Natural Science (NS) , 2011, DOI: 10.4236/ns.2011.36057
Abstract: A CFD(Computational Fluid Dynamics) model has been developed using the commercial CFD package FLUENT for the thermal convection inside air filled cylindrical DACON sensor, where the onboard time dependent gravitational micro acceleration has been considered. Time dependent, curve fitted gravitational accelera-tion in x- and y-axes from published data have been incorporated in FLUENT through a User Defined Function (UDF), developed in C which includes space craft rotation. At the sensor plane the two-dimensional flow has also been visualized. A good agreement is between simu-lation and published experimental data. Last but not the least, for checking its response to suffi-ciently strong perturbations in an orbital flight, physical and numerical experiments are carried out where an astronaut swung the sensor in hands along the y axis with amplitude of 10cm and a frequency of 0.2 Hz. A good qualitative validation has been achieved between CFD and actual experimental results.
Post-irradiation angiosarcoma of bone
Mittal Srabani,Goswami Chanchal,Kanoria Nandini,Bhattacharya Aniruddha
Journal of Cancer Research and Therapeutics , 2007,
Abstract: Radiation therapy is extensively used for treatment of malignancies, but angiosarcomas occurring in an irradiated area are uncommon. We report a rare case of high-grade epithelioid angiosarcoma of upper end of right humerus in a 67-year-old male occurring ten years following irradiation for giant cell tumor of the same anatomical site. The patient presented with progressive painful swelling over right shoulder and his X-ray showed erosion of medial cortex with lytic areas at upper end of humerus. He underwent excision of affected part of humerus followed by cemented hemiarthroplasty and bone grafting. After initial histopathological diagnostic dilemma the final report was given as post-radiation angiosarcoma. Disease recurred at the end of one-year follow-up period where upon he underwent wide resection with prosthesis replacement. He received four cycles of combination chemotherapy with doxorubicin and ifosfamide and currently is free of recurrence after six months follow -up.
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