2,731 research outputs found
Traditional Music in a Modern Society: Dr. Tapan Kumar Bhattacharyya
No full textLise Waxer discute la musique hindoue en examinant la philosophie et ta technique de Tapan Kumar Bhattacharyya, qui enseigne la musique à Toronto depuis 1976. Waxer montre le lien entre la musique de Bhattarachayya et la culture indienne, et discute comment il réalise la combinaison déléments et traditionnels et modernes dans ses chansons et sa musique
Oxidative Degradation of Azo Dyes in Aqueous Solution by Water‐Soluble Iron Porphyrin Catalyst
No full textLetter from Martin Gardner to Tapan Kumar MukherJee 27 April 88
No full textA letter the author received from Martin Gardner
Supplemental material for LC-MS/MS determination of 4-hydroxynimesulide, an active metabolite of nimesulide and application to bioequivalence study in Indian subjects
No full textSupplemental Material for LC-MS/MS determination of 4-hydroxynimesulide, an active metabolite of nimesulide and application to bioequivalence study in Indian subjects by Dhiman Halder, Shubhasis Dan, Pradipta Sarkar, Dibya Das, Umesh Chandra Halder and Tapan Kumar Pal in European Journal of Mass Spectrometry</p
Improvement in Spatial Imagery Following Sight Onset Late in Childhood
No full textThe factors contributing to the development of spatial imagery skills are not well understood. Here, we consider whether visual experience shapes these skills. Although differences in spatial imagery between sighted and blind individuals have been reported, it is unclear whether these differences are truly due to visual deprivation or instead are due to extraneous factors, such as reduced opportunities for the blind to interact with their environment. A direct way of assessing vision’s contribution to the development of spatial imagery is to determine whether spatial imagery skills change soon after the onset of sight in congenitally blind individuals. We tested 10 children who gained sight after several years of congenital blindness and found significant improvements in their spatial imagery skills following sight-restoring surgeries. These results provide evidence of vision’s contribution to spatial imagery and also have implications for the nature of internal spatial representations.James S. McDonnell FoundationNational Eye Institut
Top down processing of faces in human brain: A Behavioral Study
No full textNotwithstanding the extensive research effort has gone into understanding face perception by human brain. The concept of face recognition is established yet is selectively impaired relative to recognition of faces of equivalent difficulty. The objective of present study is to develop a theoretical model and a set of stipulations for understanding and discussing how we distinguish familiar faces, and the relationship between recognition and other aspects of face processing. Top down imagery stimuli of familiar and unfamiliar faces were shown to healthy individuals and were asked to recognize them as quickly and accurately as possible. The stimuli were formulated in such a manner that semantic memory and cognitive training does not play a significant role during the task execution. The responded stages by the subjects were recorded. Results obtained from the nonparametric analysis of the multivariate data recorded indicate that process of structural decoding of unfamiliar faces occurring inside the brain is delayed in comparison to familiar faces. It is speculated that brain structures, which have been associated with face recognition task countenance difficulty while identifying unfamiliar faces. Several distinctive information that we derive from seen faces appear to influence the processing performance of the brain during the task
NS-Cross Entropy-Based MAGDM under Single-Valued Neutrosophic Set Environment
No full textIn this paper, the authors Surapati Pramanik, Shyamal Dalapati, Shariful Alam,
Florentin Smarandache, Tapan Kumar Roy propose a new cross entropy measure
under a single-valued neutrosophic set (SVNS) environment, namely NS-cross
entropy, and prove its basic properties. Additionally, they define the weighted
NS-cross entropy measure, investigate its basic properties, and develop a novel
multi-attribute group decision-making (MAGDM) strategy that is free from the
drawbacks of asymmetrical behavior and undefined phenomena. It is capable of
dealing with an unknown weight of attributes and an unknown weight of decision-makers.
Finally, a numerical example of multi-attribute group decision-making problem
of investment potential is solved to show the feasibility, validity and
efficiency of the proposed decision-making strategy.</p
Efficient Oxidative Degradation of Azo Dyes by a Water‐Soluble Manganese Porphyrin Catalyst
No full textDyes in wastewater severely affect the nature and quality of water by inhibiting the sunlight penetration into the stream, which thereby reduces the photosynthesis reaction. This poses a serious environmental threat in many developing countries. Recently, new methods for the treatment of colored dye effluent streams have attracted much attention. The [MnIII(tmpyp)]/H2O2 system (tmpyp=meso-tetrakis(1-methylpyridinium-4-yl)porphyrinato) was now found to degrade various azo dyes with remarkably high efficiency under ambient conditions in aqueous solution at certain pH values. Main products of the catalytic degradation of the dye amaranth by [MnIII(tmpyp)]/H2O2 were analyzed. The reaction mechanism was studied in more detail by using rapid-scan stopped-flow spectrophotometry as a function of pH, [catalyst], [H2O2], [dye], and [surfactants]. Spectral analyses and kinetic data suggested rapid formation of an intermediate [MnIII(tmpyp)(OOH)] (a compound 0-type intermediate), followed by the formation of a relatively stable trans-dioxomanganese(V) porphyrin complex, [MnV(O)2(tmpyp)] (a compoundI analog). The one-electron reduction of [MnV(O)2(tmpyp)] to [MnIV(O)(tmpyp)] (a compoundII analog) was accelerated greatly by amaranth. On the basis of the kinetic and spectroscopic data, a reaction mechanism of the formation of reactive intermediates [MnIII(tmpyp)(OOH)], [MnV(O)2(tmpyp)], and [MnIV(O)(tmpyp)] was proposed.Alexander von Humboldt Foundatio
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