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Search Results: 1 - 10 of 3453 matches for " Chaudhury AR "
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Hand on Head Sign: A New Clinical Sign
Chaudhury AR
Indian Journal of Physical Medicine and Rehabilitation , 2010,
Abstract: Description of a new sign in Cervical Radiculopathy.
Algorithmic Optimization of BDDs and Performance Evaluation for Multi-level Logic Circuits with Area and Power Trade-offs  [PDF]
Saurabh Chaudhury, Anirban Dutta
Circuits and Systems (CS) , 2011, DOI: 10.4236/cs.2011.23031
Abstract: Binary Decision Diagrams (BDDs) can be graphically manipulated to reduce the number of nodes and hence the area. In this context, ordering of BDDs play a major role. Most of the algorithms for input variable ordering of OBDD focus primarily on area minimization. However, suitable input variable ordering helps in minimizing the power consumption also. In this particular work, we have proposed two algorithms namely, a genetic algorithm based technique and a branch and bound algorithm to find an optimal input variable order. Of course, the node reordering is taken care of by the standard BDD package buddy-2.4. Moreover, we have evaluated the performances of the proposed algorithms by running an exhaustive search program. Experi-mental results show a substantial saving in area and power. We have also compared our techniques with other state-of-art techniques of variable ordering for OBDDs and found to give superior results.
Feasibility and Implications of a Monetary Union in Southeast Asia
Rafi Chaudhury
Michigan Journal of Business , 2009,
Abstract: This study explores the readiness of seven ASEAN countries to adopt a common monetary policy and introduce a common currency. The suitability of the region as an Optimum Currency Area is estimated using an OCA Index developed in Bayoumi & Eichengreen (1997). This study finds that while the countries studied appear to be prepared to adopt a common monetary policy, there are still many opportunities to exploit policy independence in order to improve infrastructure and competitiveness prior to further integration.
A Dual-Model Approach to Measuring Income Convergence Sustainability in European and Asian Emerging Economies
Rafi Chaudhury
Michigan Journal of Business , 2010,
Abstract: The 'tiger' economies of Southeast Asia and the transition economies of Central and Eastern Europe have encountered both rapid growth and considerable upheaval in the past two decades. This study examines the extent to which the two regions have converged to industrialized-country levels of per capita income growth, using the convergence criteria defined in Sala-i-Martin (1996), for the 1992-2007 period. The sustainability of convergence going into the future is estimated using a variant of the balance of payments constrained-growth theory developed in Thirlwall (1979). My findings suggest that both regions exhibit fairly rapid convergence, which is likely to continue in the future due to favorable export demand elasticities, technological diffusion, and total factor productivity.
Reporting for cryptosporidium species in routine stool microscopy
Chaudhury A
Indian Journal of Medical Microbiology , 2001,
In vitro activity of cefpirome: A new fourth generation cephalosporin
Chaudhury A
Indian Journal of Medical Microbiology , 2003,
Abstract: This study was carried out to find the efficacy of Cefpirome in an Indian setting in a tertiary care referral hospital. A total of 516 bacterial isolates from various clinical specimens were tested against cefpirome (Cpo) and compared against the activities of three other cephalosporins, namely cefazolin (Cz), cefuroxime (Cu), and cefotaxime (Ce) as representative of the other three generations. Preliminary testing was done by Kirby Bauer technique. In the gram positive group of organisms (Staphylococcus aureus and coagulase negative staphylococci); 96 strains out of 177 (54.2%) were resistant to Cpo compared to 61.0% for Cz and 72.3% for Cu. In the Enterobacteriaceae group, 66.0% of the isolates were resistant to Cpo compared to 63.2% for Ce; while for Pseudomonas and other non-fermentors, the corresponding figures were 70.7% and 50.0% for Cpo and Ce respectively. The MIC for the strains resistant to Cpo were found to be >16mg/L to >256mg/L. This study highlights that Cpo did not have superior activity against the organisms isolated in our laboratory. However, since its activity against gram positive and gram negative organisms is comparable to those of Cz and Ce respectively, it may be useful for mixed infections for empirical therapy.
Molecular Handoffs in Nitrergic Neurotransmission
Arun Chaudhury
Frontiers in Medicine , 2014, DOI: 10.3389/fmed.2014.00008
Abstract: Postsynaptic density (PSD) proteins in excitatory synapses are relatively immobile components, while there is a structured organization of mobile scaffolding proteins lying beneath the PSDs. For example, shank proteins are located further away from the membrane in the cytosolic faces of the PSDs, facing the actin cytoskeleton. The rationale of this organization may be related to important roles of these proteins as “exchange hubs” for the signaling proteins for their migration from the subcortical cytosol to the membrane. Notably, PSD95 have also been demonstrated in prejunctional nerve terminals of nitrergic neuronal varicosities traversing the gastrointestinal smooth muscles. It has been recently reported that motor proteins like myosin Va play important role in transcytosis of nNOS. In this review, the hypothesis is forwarded that nNOS delivered to subcortical cytoskeleton requires interactions with scaffolding proteins prior to docking at the membrane. This may involve significant role of “shank,” named for SRC-homology (SH3) and multiple ankyrin repeat domains, in nitric oxide synthesis. Dynein light chain LC8–nNOS from acto-myosin Va is possibly exchanged with shank, which thereafter facilitates transposition of nNOS for binding with palmitoyl-PSD95 at the nerve terminal membrane. Shank knockout mice, which present with features of autism spectrum disorders, may help delineate the role of shank in enteric nitrergic neuromuscular transmission. Deletion of shank3 in humans is a monogenic cause of autism called Phelan–McDermid syndrome. One fourth of these patients present with cyclical vomiting, which may be explained by junctionopathy resulting from shank deficit in enteric nitrergic nerve terminals.
Similarity in Transcytosis of nNOSα in Enteric Nerve Terminals and Beta Cells of Pancreatic Islet
Arun Chaudhury
Frontiers in Medicine , 2014, DOI: 10.3389/fmed.2014.00020
Tautomeric mutation: A quantum spin modelling
Ranjan Chaudhury
Physics , 2006, DOI: 10.1209/0295-5075/79/18005
Abstract: A quantum spin model representing tautomeric mutation is proposed for any DNA molecule. Based on this model, the quantum mechanical calculations for mutational rate and complementarity restoring repair rate in the replication processes are carried out. A possible application to a real biological system is discussed.
A Possible Theoretical Model For Studying Superconductivity In Fe-based Systems
Ranjan Chaudhury
Physics , 2009,
Abstract: A theoretical approach with a microscopic model is proposed for the observed "high temperature superconductivity" in the Iron-based compounds. The above scheme takes into account two important aspects viz. (i) superconducting transition close to magnetic ordering and (ii) the layered structure. From the calculation of the superconducting transition temperature, it is shown that in the Fe-based superconductors the magnetic mechanism for superconductivity, operating through the effective attractive Coulomb interaction within the framework of the Fermi Liquid theory, is highly plausible.
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