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Search Results: 1 - 10 of 9179 matches for " Rajesh Gupta "
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Brain initiated interaction  [PDF]
Rajesh Singla, Balraj Gupta
Journal of Biomedical Science and Engineering (JBiSE) , 2008, DOI: 10.4236/jbise.2008.13028
Abstract: Brain-Computer Interfaces (BCI) are developed to help locked-in patients, who lose control of their bodies and are unable to perform simple tasks such as speech, locomotion, and can’t even effectively interact, with their environment. BCI shows promise in allowing these individuals to interact with a computer using EEG. A Brain Computer Interface is a communication system in which messages or commands that an indi-vidual sends to the external world do not pass through the brain’s normal output pathways of peripheral nerves and muscles. A system is created to allow individuals with motor disabili-ties to control the motion of the bed on which they are bedridden via BCI for drug delivery and other activities, with the help of eye motion and changes in the absolute power in alpha rhythms of an EEG signal of the patient.
Why Should Medical Students Care about Health Policy?
Rajesh Gupta
PLOS Medicine , 2006, DOI: 10.1371/journal.pmed.0030199
Asymptomatic hypothyroidism With Concomitant Viral Pericarditis Presenting asAcute Cardiac Tamponade
Rajesh Gupta
JK Science : Journal of Medical Education & Research , 2001,
Abstract: A case ofa young woman who presented to emergency department with severe abdominal pain andshock is reported here. The patient was found to have pericardia Itamponade due to massive pericardialeffusion. On further evaluation, the etiology of this effusion was found to be secondary tohypothyroidism with concomitant acute viral pericarditis leading to a fulminant tamponade. Thepresentation, differential diagnosis and management ofpericardial effusion and tamponade secondaryto hypothyroidism and viral pericarditis are discussed. The diagnosis ofhypothyroidism in conjunctionwith acute viral pericarditis should be considered in patients presenting with unexplained pericardialeffusion and tamponade.
New Efficient Estimators of Population Mean Using Non-Traditional Measures of Dispersion  [PDF]
Rajesh Kumar Gupta, Subhash Kumar Yadav
Open Journal of Statistics (OJS) , 2017, DOI: 10.4236/ojs.2017.73028
Abstract: One of the aims in survey sampling is to search for the estimators with highest efficiency. In the present paper, three improved estimators of population mean have been proposed using some non-traditional measures of dispersion of auxiliary variable such as Gini’s mean difference, Downton’s method and probability weighted moments early given by Abid [1] with a special population parameter of auxiliary variable. The large sample properties that are biased and mean squared errors of the proposed estimators have been derived up to the first order of approximation. A theoretical comparison of the proposed estimators has been made with the other existing estimators of population mean using auxiliary information. The conditions under which the proposed estimators perform better than the other existing estimators of population mean have been given. A numerical study is also carried out to see the performances of the proposed and existing estimators of population mean and verify the conditions under which proposed estimators are better than other estimators. It has been shown that the proposed estimators perform better than the existing estimators as they are having lesser mean squared error.
Reconfigurable Efficient Design of Viterbi Decoder for Wireless Communication Systems
Swati Gupta,Rajesh Mehra
International Journal of Advanced Computer Sciences and Applications , 2011,
Abstract: Viterbi Decoders are employed in digital wireless communication systems to decode the convolution codes which are the forward correction codes. These decoders are quite complex and dissipate large amount of power. With the proliferation of battery powered devices such as cellular phones and laptop computers, power dissipation, along with speed and area, is a major concern in VLSI design. In this paper, a low power and high speed viterbi decoder has been designed. The proposed design has been designed using Matlab, synthesized using Xilinx Synthesis Tool and implemented on Xilinx Virtex-II Pro based XC2vpx30 FPGA device. The results show that the proposed design can operate at an estimated frequency of 62.6 MHz by consuming fewer resources on target device.
Anamika Gupta,Rajesh Mehra
International Journal of Advances in Engineering and Technology , 2013,
Abstract: In this paper an area efficient Cordic based adaptive algorithm has been designed and simulated for Digital Signal Processing. An adaptive filter is useful whenever the statistics of the input signals to the filter are not known. Many adaptive algorithms like LMS, NLMS and RLS are used for adaptive filtering. An efficient QR decomposition based RLS algorithm is an efficient way to filter out noise signal but its area consumption is high. So for improving area a Cordic based approach is used.Cordic algorithm is very much hardware efficient, it omits the dependence on multipliers because it implement various operations with the help of shift-add operation. Instead of taking signal from one sensor, here array of sensor (microphones) is used, whichs play an important role in noise reduction and speech enhancement. The proposed Cordic QR decomposition based adaptive algorithm is designed using MATLAB and Xilinx ACCELDSP ,synthesized with Xilinx Synthesis Tool (XST), and implemented on SPARTAN-3an(xc3s700an-5fgg484) FPGA device. The proposed algorithm has been compared with conventional QRD based recursive least square in terms of area. The results show that the performance is almost similar, but area consumption is low. The proposed design can operate at an estimated frequency of 93.7 MHz along with the minimum period of 10.6710 ns the Spartan 3an device.
Political Party Perception and Voting Behavior of People: A Study of Communication Perspective from Nepal  [PDF]
Udaya Raj Paudel, Rajesh Gupta, Sameen Poudel, Kabita Adhikari
Advances in Literary Study (ALS) , 2018, DOI: 10.4236/als.2018.64016
Abstract: Communication, political party perception and voting behavior of the people keep congenial nexus. Grounded on this bond, the main purpose of this study is to analyze the factors that impact political party perception and voting behavior of the people in Nepal from the perspective of communication, particularly residing on social networking sites: Facebook, Twitter and YouTube. In purposive sampling method perception level detailed data were obtained from 333 respondents aged 20 years and above just before the historic constitutional assembly election in Nepal. A set of questionnaires including multiple choices and Likert scale questions were provided to obtain the information. Drawing the coherent substance from Technological Determinism, Social Judgment, Agenda Setting, Uses and Gratification, and Habermas’s Concept of Public Sphere and Political Campaign theories, the research explores the roles of social media in political party perception and voting behavior. The results show that political interest is positively related to political party perception and voting behavior, which infer that political party perception is influenced by political interest of the politician. The analysis also indicates that political trust is also positively related to political perception and voting behavior, which shows that political trust highly influences political party perception. Likewise, religion and social media are also positively related to political party perception and voting behavior. The study roots on primary source of data and contributes to understand the impact of social media in the society and politics.
The Heat Kernel on $AdS$
Rajesh Gopakumar,Rajesh Kumar Gupta,Shailesh Lal
Physics , 2011, DOI: 10.1007/JHEP11(2011)010
Abstract: We explicitly evaluate the heat kernel for the Laplacian of arbitrary spin tensor fields on the thermal quotient of (Euclidean) $AdS_N$ for $N\geq 3$ using the group theoretic techniques employed for $AdS_3$ in arXiv:0911.5085. Our approach is general and can be used, in principle, for other quotients as well as other symmetric spaces.
Kachroo Vipin,Gupta Kumar Arun,Gupta Rajesh
International Research Journal of Pharmacy , 2011,
Abstract: Sesbania grandiflora (L.) Pers is a plant that is used in traditional medicine for the treatment of cold,fever, stomach disorder, diarrhea and jaundice and as skin cleanser. To evaluate the scientific basis for the use of the plant, the antimicrobial activities of extracts of the stem bark and leaves were evaluated against some common gram negative and gram positive bacteria and fungi. The study also investigated the chemical constituents of the plant and the effect of temperature and pH on its antimicrobial activity. Sesbania grandiflora (L.) Pers has broad spectrum antibacterial activity and a potential source ofnew classes of antibiotics that could be useful for infectious disease chemotherapy and control.The phytochemical constituents of the dried powdered plant parts were extracted using aqueous and organic solvents (acetone and ethanol). The antimicrobial activity of the concentrated extracts was evaluated by determination of the diameter of zone of inhibition against both gram negative and gram positive bacteria and fungi using the disc diffusion method.
Leveraging Information Technology to Improve Control of Neglected Tropical Diseases
Rajesh Gupta ,Paul H. Wise
PLOS Neglected Tropical Diseases , 2013, DOI: 10.1371/journal.pntd.0002353
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