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Search Results: 1 - 10 of 21207 matches for " Dhirendra Singh and Shweta Sharma "
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Combining ability and Gene action for seed yield and its components in Bread Wheat (Triticum aestivum) (L.) em. Thell]
M.K. Srivastava, Dhirendra Singh and Shweta Sharma
Electronic Journal of Plant Breeding , 2012,
Abstract: A line x tester analysis involving 12 females and 4 males was carried out for 12 component traits in bread wheat. The variancesdue to specific combining ability (sca) were found to be considerably higher than that of general combining ability (gca) for allthe characters indicating greater importance of non-additive type of gene action thus, the heterosis breeding may be useful.Variety WH542 and HD2285 was found to be good general combiners for most of the yield contributing traits like spike length,1000 grain weight etc.and so the crosses involving these parents have fair chances to get better recombinants after judiciousselection. Crosses like PBW459 x RAJ 3777, K9006xUP2425and HD2285x UP2425 are important because they potentiallycombine the most of the yield contributing traits`.
ICT IN UNIVERSITIES OF THE WESTERN HIMALAYAN REGION IN INDIA: Performance Analysis
Dhirendra SHARMA,Vikram SINGH
The Turkish Online Journal of Distance Education , 2011,
Abstract: The paper presents a comparative analysis of a live project study carried out to understand the impact and performance of ICT initiatives taken by the Universities located in the Western Himalayan Region of India. A basic four-tier framework has been used to carry out this study. Accordingly, a pre- structured questionnaire on ICT initiatives, status and accomplishments, 117 questions divided in 18 groups, was prepared and given to the Head of the Department (HOD) of ICT in the Universities, who along with his technical team, supplied the feedback on a five- point scale. In each of the groups, one question was related to performance (as performance indicator) which was identified and thus another special group ‘S’ was created with 18 responses. In order to assess the respective performance and impact, a standard statistical analysis was carried out in terms of the weighted mean and the correlation (Pearson’s) coefficient (CC). The findings of the study are: A dynamic academic leadership and a properly trained skilled human resource yield better performance and impact leading to effective problem solving capability, research output and actual placements. This aspect is being implemented in most of the universities effectively and the performance is found to vary from one to another university For most of the groups the CC, with the ‘S’ group, was found to be significant, indicating a positive ICT- based performance in the universities (iii) The universities, to a greater extent, have been found to act as nuclei towards creating skilled professionals with enhanced core competence.
ICT in Universities of the Western Himalayan Region of India II: A Comparative SWOT Analysis
Dhirendra Sharma,Vikram Singh
International Journal of Computer Science Issues , 2010,
Abstract: This study presents a comparative SWOT analysis to comprehend the pattern of development of ICT within six universities of western Himalayan region of India. With the objective of achieving quality and excellence in higher education system in the region, this study provides a basis to decision makers to exploit opportunities and minimize the external threats. The SWOT analysis of different universities, placed under three categories, has been undertaken within the four-tier framework used earlier by the authors. Guided by the initiatives of National Mission on Education through ICT (NMEICT) for SWOT analysis, findings of this paper reveal, relative consistency of these three categories of universities, with the earlier study. A few suggestions, as opportunities, with an emphasis on problem solving orientation in higher education, have been made to strengthen the leadership of universities in the field of ICT.
ICT in Universities of the Western Himalayan Region in India: Status, Performance- An Assessment
Dhirendra Sharma,Vikram Singh
International Journal of Computer Science Issues , 2009,
Abstract: The present paper describes a live project study carried out for the universities located in the western Himalayan region of India in the year 2009. The objective of this study is to undertake the task of assessment regarding initiative, utilization of ICT resources, its performance and impact in these higher educational institutions/universities. In order to answer these, initially basic four- tier framework was prepared. Followed by a questionnaire containing different ICT components 18 different groups like vision, planning, implementation, ICT infrastructure and related activities exhibiting performance. Primary data in the form of feedback on the five point scale, of the questionnaire, was gathered from six universities of the region. A simple statistical analysis was undertaken using weighted mean, to assess the ICT initiative, status and performance of various universities. In the process, a question related to Performance Indicator was identified from each group, whose Coefficient of Correlation was calculated. This study suggests that a progressive vision, planning and initiative regarding academic syllabi, ICT infrastructure, used in training the skilled human resource, is going to have a favourable impact through actual placement, research and play a dominant role at the National and International level.
ICT in Universities of the Western Himalayan Region of India II: A Comparative SWOT Analysis
Dhirendra Sharma,Vikram Singh
Computer Science , 2010,
Abstract: This study presents a comparative SWOT analysis to comprehend the pattern of development of ICT within six universities of western Himalayan region of India. With the objective of achieving quality and excellence in higher education system in the region, this study provides a basis to decision makers to exploit opportunities and minimize the external threats. The SWOT analysis of different universities, placed under three categories, has been undertaken within the four-tier framework used earlier by the authors. Guided by the initiatives of National Mission on Education through ICT (NMEICT) for SWOT analysis, findings of this paper reveal, relative consistency of these three categories of universities, with the earlier study. A few suggestions, as opportunities, with an emphasis on problem solving orientation in higher education, have been made to strengthen the leadership of universities in the field of ICT.
RELIABILITY AND COST ANALYSIS OF A SYSTEM WITH MULTIPLE COMPONENTS USING COPULA
S. B. Pandey,S. B. Singh,Shweta Sharma
Journal of Reliability and Statistical Studies , 2008,
Abstract: The present study evaluates various reliability measures including transition state probabilities of a sub system on a website which caters to the ‘contact us’ functionality using copula technique. The system in context uses a combination of both frequently asked questions and contact us forms on the website to help customers getting resolutions to their queries. The failure and repair times for the system follow exponential and general distribution respectively. Introducing two different types of repair between adjacent states the system has been studied to evaluate MTTF, steady state probability, availability and cost analysis by using Gumbel-Houggard family of copula.
New host records of Cercosporoids from medicinal plants of Madhya Pradesh
P.K. GUPTA1*, DHIRENDRA SINGH2, N.D. SHARMA1 and YOGITA GHARDE3
Indian Phytopathology , 2011,
Abstract:
Power series with Taylor coefficients of sum-product type and algebraic differential equations /SP-series and the interplay between their resurgence and differential properties
Shweta Sharma
Mathematics , 2012,
Abstract: The article is based on the differential properties of the inner generators (singularities) that occur while handling SP series (sum product series), power series whose Taylor coefficients can be written as sum-product combinations. It is an elaboration with numerical details and some explicit calculations of the chapter 6 of the joint article with Ecalle on these series. For all polynomial inputs $f$ and all monomial inputs $F$, the inner generators corresponding to them verify ordinary differential equations of linear homogeneous type with polynomial coefficients. Numerical results strongly suggest the non-existence of ODEs for functions $F$ that are rational but not monomial, i.e. not of the form ${(1-ax)}^p$, for $p \in \mathbb{Z}$.
MAC Layer RFID Protocol for Low Cost Object Identification
Shweta Singh
Journal of Communications , 2006, DOI: 10.4304/jcm.1.4.41-47
Abstract: In this paper, we introduce a novel medium access control (MAC) protocol for Radio Frequency Identification (RFID) systems. This protocol exploits the Markov Chain Model of Slotted Aloha and there by tries to come up with a more efficient model so as to significantly improve the total read time performance along with the lesser tag collision. The protocol design has been extended so as to address the problem of cost reduction in RFID .This is done by combining the of Markov Chain Slotted Aloha model for MAC Layer along with Two Time Scale SPSA (Simultaneous Perturbation Stochastic Approximation).The so designed protocol is programmatically simulated and mathematically the results have been derived to prove its enhanced performance along with lowered cost involved in object identification.
Multiple Analytical Approaches Reveal Distinct Gene-Environment Interactions in Smokers and Non Smokers in Lung Cancer
Rakhshan Ihsan, Pradeep Singh Chauhan, Ashwani Kumar Mishra, Dhirendra Singh Yadav, Mishi Kaushal, Jagannath Dev Sharma, Eric Zomawia, Yogesh Verma, Sujala Kapur, Sunita Saxena
PLOS ONE , 2011, DOI: 10.1371/journal.pone.0029431
Abstract: Complex disease such as cancer results from interactions of multiple genetic and environmental factors. Studying these factors singularly cannot explain the underlying pathogenetic mechanism of the disease. Multi-analytical approach, including logistic regression (LR), classification and regression tree (CART) and multifactor dimensionality reduction (MDR), was applied in 188 lung cancer cases and 290 controls to explore high order interactions among xenobiotic metabolizing genes and environmental risk factors. Smoking was identified as the predominant risk factor by all three analytical approaches. Individually, CYP1A1*2A polymorphism was significantly associated with increased lung cancer risk (OR = 1.69;95%CI = 1.11–2.59,p = 0.01), whereas EPHX1 Tyr113His and SULT1A1 Arg213His conferred reduced risk (OR = 0.40;95%CI = 0.25–0.65,p<0.001 and OR = 0.51;95%CI = 0.33–0.78,p = 0.002 respectively). In smokers, EPHX1 Tyr113His and SULT1A1 Arg213His polymorphisms reduced the risk of lung cancer, whereas CYP1A1*2A, CYP1A1*2C and GSTP1 Ile105Val imparted increased risk in non-smokers only. While exploring non-linear interactions through CART analysis, smokers carrying the combination of EPHX1 113TC (Tyr/His), SULT1A1 213GG (Arg/Arg) or AA (His/His) and GSTM1 null genotypes showed the highest risk for lung cancer (OR = 3.73;95%CI = 1.33–10.55,p = 0.006), whereas combined effect of CYP1A1*2A 6235CC or TC, SULT1A1 213GG (Arg/Arg) and betel quid chewing showed maximum risk in non-smokers (OR = 2.93;95%CI = 1.15–7.51,p = 0.01). MDR analysis identified two distinct predictor models for the risk of lung cancer in smokers (tobacco chewing, EPHX1 Tyr113His, and SULT1A1 Arg213His) and non-smokers (CYP1A1*2A, GSTP1 Ile105Val and SULT1A1 Arg213His) with testing balance accuracy (TBA) of 0.6436 and 0.6677 respectively. Interaction entropy interpretations of MDR results showed non-additive interactions of tobacco chewing with SULT1A1 Arg213His and EPHX1 Tyr113His in smokers and SULT1A1 Arg213His with GSTP1 Ile105Val and CYP1A1*2C in nonsmokers. These results identified distinct gene-gene and gene environment interactions in smokers and non-smokers, which confirms the importance of multifactorial interaction in risk assessment of lung cancer.
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