2,109 research outputs found
Santosh Kumar Soni
No full textMr. Santosh Kumar Soni is a Senior Staff Scientist at C-DAC, Mumbai. His expertise area includes: Biometrics, Digital Image Processing, Digital Signal Processing and Parallel Computing. He has worked on many industry and academic research projects, and his recent work includes:•He had been a Specialist Consultant to C.I.D., Maharashtra State Police in the field of Fingerprint Biometrics for two years. •He is a Chief Investigator and Chief Architect for: C-DAC’s “Bharatiya-AFIS” (Automated Fingerprint Identification System) Project, Standardized Biometric Template Converter, Fingerprint Image Quality Analysis Tool and Automated Performance Evaluation Tool for Fingerprint Biometrics System etc. •At C-DAC end, he is responsible for development and deployment of Aadhaar Authentication modules: Aadhaar Client and Server modules (in-process). •He was involved in the ILO-SID (Seafarers’ Identity Documents) project of DG-Shipping for “Biometric Templates Standards Compliance”. •To his credit, there are 05 Patents (Provisional Filing), around 25 premium International/National Journal & Conference Papers, and he has received best paper awards for three of his papers. •He is an IEEE Member, IACSIT member (International Association of Computer Science and Information Technology) and reviewer to many International Journals. •He has delivered many invited technical talks in the field of Biometrics and related technologies.https://www.interscience.in/mentors/1031/thumbnail.jp
Yb3+ sensitized Na2Y2B2O7:Er3+ phosphors in enhanced frequency upconversion,.temperature sensing and field emission display
No full textNa2Y2B2O7:Er3+/Yb3+ crystalline phosphors with single monoclinic phase have been synthesized by urea assisted solution combustion method and characterized through X-ray diffraction and Field emission scanning electron microscopy analysis. Frequency upconversion (UC) emission study has been carried out upon 980 nm laser diode excitation and maximum enhancement of about similar to 1433 times for the UC emission intensity of the green band in the codoped phosphor compared to that of the singly Er3+ doped phosphor has been reported. Optical temperature sensing study performed in the developed codoped phosphor reveals that the material can be used temperature sensing application within 300-613K temperature range with maximum sensitivity similar to 7.9 x 10(-3)K(-1) at 300 K. The low-voltage cathodoluminescence measurements have been performed for Na2Y2B2O7:Er3+-Yb3+ phosphors as a function of accelerating voltage and filament current. The developed phosphors exhibit highly intense green emission with some weak emission bands in violet, blue and red regions upon electron beam excitation. (C) 2017 Elsevier Ltd. All rights reserved
Emerging applications, perspectives, and discoveries in cardiovascular research/ Ashim Malhotra and Shivani Soni, editors.
No full textIncludes bibliographical references."This book explores the recent findings in the field of cardiovascular sciences and emerging technologies in research, transplant medicine, and organ system biology. The mission of our publication is to highlight the strengths and future potential of this new interdisciplinary approach to cardiovascular science"--Provided by publisherThe role of natriuretic peptides in the pathophysiology and treatment of heart failure / Jennifer L. Mathews, Anne Schweighardt -- Signaling mechanisms regulating vascular endothelial barrier function / Mohammad Tauseef, Madeeha Aqil, Dolly Mehta -- Potential role of nuclear factor kB in cardiovascular disease: an update / Rakesh K. Mishra -- Store-operated calcium entry channels: potential role in cardiac function / Diptiman D. Bose -- Examining the effect of mitochondrial fission and fusion events on the heart: role of the mitochondria in heart disease / Ashim Malhotra, Shivani Soni -- Cardiac remodeling under hyperoxic conditions: hyperoxia and heart diseases / Siva Kumar Panguluri -- Platelet function disorders / Zubair A. Karim, Fadi T. Khasawneh -- Myocardial infarction: disease mechanisms and therapeutic perspectives / Kalyan C. Chapalamadugu [and 3 others] -- Pharmacogenomics and cardiovascular disease / Emily K. Dornblaser, Craig P. Worby, Daniel Alan Brazeau -- Advances in the diagnosis and treatment of infective endocarditis / R. Brigg Turner, Jacqueline Schwartz -- Advancements in cardiovascular diagnostics / Yan Li [and 5 others] -- Immunosuppressive therapy in heart transplantation / Yan Li [and 6 others] -- Recent innovations in coronary stents / Poulomi Sengupta -- Nanoparticle-based drug delivery systems for cardiovascular applications / Arti Patel, Yashwant V. Pathak.; Complementary and alternative medicine use in hypertension: the good, the bad, and the ugly: hypertension treatment from nature -- myth or fact? / Aymen Shatnawi [and 3 others] -- Resveratrol: an epigenetic regulator of SIRT1 -- is it a magic tool to prevent cardiovascular disease? / Catherine A. Powell [and 3 others] -- The effects of social and demographic factors on cardiovascular disease / Hosik Min -- Forensic assessment of natural unexpected cardiovascular death / Gulnaz T. Javan, Sheree J. Finley, Sait Ozsoy.1 online resourc
The story of the Soni Ventorum Wind Quintet
No full textThesis (D. Mus. Arts)--University of Washington, 2000The Soni Ventorum Wind Quintet has been the wind quintet-in-residence at the University of Washington School of Music since 1968. Officially founded in 1962, when its members were on the faculty of the Conservatory of Music of Puerto Rico, the group has had a long and stable history. Through their concerts, tours, and recordings, the Soni Ventorum Wind Quintet has established an international reputation. Over the years, many distinguished composers have written works especially for the Soni Ventorum, thus expanding the repertoire of the wind quintet.This study traces the history of the Soni Ventorum Wind Quintet mainly through interviews with the quintet members themselves. This history includes antecedent quintets in which members of the Soni Ventorum Wind Quintet participated (namely, a student quintet at the Curtis Institute, The American Wind Ensemble of Vienna, and the U.S. Seventh Army Symphony Wind Quintet). It covers the founding of the Soni Ventorum Wind Quintet in 1962 at the Conservatory of Music in Puerto Rico through their tenure from 1968 through the present as the wind quintet-in-residence at the University of Washington in Seattle. It gives an account of the establishment of the Soni Ventorum's recording career, their approach to sound and ensemble, their many tours, participation in festivals and competitions, and personnel. The study details the Soni Ventorum's collaborations with colleagues at the University of Washington School of Music, especially the many composers who wrote pieces for the group. One chapter covers ensemble pieces that have been written for the members of the Son! Ventorum Wind Quintet, while another presents wind quintet and quartet arrangements that were prepared by the quintet members themselves. The final chapter provides biographies of the members of the Soni Ventorum Wind Quintet.The Introduction to the study is a brief history of wind quintets. The study concludes with detailed appendices cataloguing the Soni Ventorum Wind Quintet's repertoire, concerts, residencies, tours and a complete discography.At the time of this writing, the author is aware of no other work detailing the history of an established wind quintet
Bivariate tempered space-fractional Poisson process and shock models
No full textIn this paper, we introduce a bivariate tempered space-fractional Poisson process (BTSFPP) by time-changing the bivariate Poisson process with an independent tempered \alpha-stable subordinator. We study its distributional properties and its connection to differential equations. The Lévy measure for the BTSFPP is also derived. A bivariate competing risks and shock model based on the BTSFPP for predicting the failure times of the items that undergo two random shocks is also explored. The system is supposed to break when the sum of two types of shocks reaches a certain random threshold. Various results related to reliability such as reliability function, hazard rates, failure density, and the probability that the failure occurs due to a certain type of shock are studied. We show that for a general Lévy subordinator, the failure time of the system is exponentially distributed with mean depending on the Laplace exponent of the Lévy subordinator when the threshold has geometric distribution. Some special cases and several typical examples are also demonstrated
A COMPARATIVE STUDY ON GENETIC DISORDERS
No full textMohammed Baleeqhuddin*, Saranya Bhattacharya and Soni Kumar
Association of common mental disorder symptoms with health and healthcare factors among women in rural western India: results of a cross-sectional survey
No full textFirst author Apurv Soni is a medical student in the MD/PhD Program at UMass Medical School.OBJECTIVES: Information about common mental disorders (CMD) is needed to guide policy and clinical interventions in low-income and middle-income countries. This study's purpose was to characterise the association of CMD symptoms with 3 inter-related health and healthcare factors among women from rural western India based on a representative, cross-sectional survey. SETTING: Surveys were conducted in the waiting area of various outpatient clinics at a tertiary care hospital and in 16 rural villages in the Anand district of Gujarat, India. PARTICIPANTS: 700 Gujarati-speaking women between the ages of 18-45 years who resided in the Anand district of Gujarat, India, were recruited in a quasi-randomised manner. PRIMARY AND SECONDARY OUTCOMES MEASURES: CMD symptoms, ascertained using WHO's Self-Reporting Questionnaire-20 (SRQ-20), were associated with self-reported (1) number of healthcare visits in the prior year; (2) health status and (3) portion of yearly income expended on healthcare. RESULTS: Data from 658 participants were used in this analysis; 19 surveys were excluded due to incompleteness, 18 surveys were excluded because the participants were visiting hospitalised patients and 5 surveys were classified as outliers. Overall, 155 (22·8%) participants screened positive for CMD symptoms (SRQ-20 score ≥8) with most (81.9%) not previously diagnosed despite contact with healthcare provider in the prior year. On adjusted analyses, screening positive for CMD symptoms was associated with worse category in self-reported health status (cumulative OR=9.39; 95% CI 5·97 to 14·76), higher portion of household income expended on healthcare (cumulative OR=2·31; 95% CL 1·52 to 3.52) and increased healthcare visits in the prior year (incidence rate ratio=1·24; 95% CI 1·07 to 1·44). CONCLUSIONS: The high prevalence of potential CMD among women in rural India that is unrecognised and associated with adverse health and financial indicators highlights the individual and public health burden of CMD.MD/Ph
Self-health analysis with two step histogram based procedure using machine learning
No full textMachine learning is the critical tool in the future for prediction in the real-time to analyze the self-health of the person. The self-health is the motivation for the patient who is suffering from different health issues and unaware of those because of not having the accurate backup or motivation. This article presents the two-step histogram-based procedure using machine learning where patient can get the idea on what's their current position in their health. The histogram methodology will be working in the two-stage mechanism which is the proposed methodology. The result of histogram methodology achieved 95% accuracy in identifying the selfhealth of the person. There will a user interface where he can communicate with the model by user inputs and the algorithm behind the submit button can analyse the self-health of the patient. There is a behavior for the patient to give the false inputs to the model and there is a risk analysis in the model which is an in build to analyse the accurate relativity of the inputs given by the patients to the application. The proposed method obtained 95% accuracy and the two-step histogram methodology can help the self to analyse their own health condition using machine learning models
PULSE-SMART: Pulse-Based Arrhythmia Discrimination Using a Novel Smartphone Application
No full textCo-author Apurv Soni is a medical student in the MD/PhD Program at UMass Medical School.BACKGROUND: Atrial fibrillation (AF) is a common and dangerous rhythm abnormality. Smartphones are increasingly used for mobile health applications by older patients at risk for AF and may be useful for AF screening. OBJECTIVES: To test whether an enhanced smartphone app for AF detection can discriminate between sinus rhythm (SR), AF, premature atrial contractions (PACs), and premature ventricular contractions (PVCs). METHODS: We analyzed two hundred and nineteen 2-minute pulse recordings from 121 participants with AF (n = 98), PACs (n = 15), or PVCs (n = 15) using an iPhone 4S. We obtained pulsatile time series recordings in 91 participants after successful cardioversion to sinus rhythm from preexisting AF. The PULSE-SMART app conducted pulse analysis using 3 methods (Root Mean Square of Successive RR Differences; Shannon Entropy; Poincare plot). We examined the sensitivity, specificity, and predictive accuracy of the app for AF, PAC, and PVC discrimination from sinus rhythm using the 12-lead EKG or 3-lead telemetry as the gold standard. We also administered a brief usability questionnaire to a subgroup (n = 65) of app users. RESULTS: The smartphone-based app demonstrated excellent sensitivity (0.970), specificity (0.935), and accuracy (0.951) for real-time identification of an irregular pulse during AF. The app also showed good accuracy for PAC (0.955) and PVC discrimination (0.960). The vast majority of surveyed app users (83%) reported that it was "useful" and "not complex" to use. CONCLUSION: A smartphone app can accurately discriminate pulse recordings during AF from sinus rhythm, PACs, and PVCs.MD/Ph
Two-Terminal Molecular Memory through Reversible Switching of Quantum Interference Features in Tunneling Junctions
No full textLarge-area molecular tunneling junctions comprising self-assembled monolayers of redox-active molecules are described that exhibit two-terminal bias switching. The as-prepared monolayers undergo partial charge transfer to the underlying metal substrate (Au, Pt, or Ag), which converts their cores from a quinoid to a hydroquinoid form. The resulting rearomatization converts the bond topology from a cross-conjugated to a linearly conjugated π system. The cross-conjugated form correlates to the appearance of an interference feature in the transmission spectrum that vanishes for the linearly conjugated form. Owing to the presence of electron-withdrawing nitrile groups, the reduction potential and the interference feature lie close to the work function and Fermi level of the metallic substrate. We exploited the relationship between conjugation patterns and quantum interference to create nonvolatile memory in proto-devices using eutectic Ga–In as the top contact
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