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Search Results: 1 - 10 of 16673 matches for " Mr. Himansu Narayan Singh "
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In-Silico Identification of LTR type Retrotransposons and Their Transcriptional Activities in Solanum Tuberosum
Dr. Chandra Bhan Yadav,Mr. Himansu Narayan Singh
International Journal of Soft Computing & Engineering , 2013,
Abstract: Eukaryotes genomes contains large amount of mobile genetic elements. More than two million EST (expressed sequence tags) sequences have been sequenced from potato crop plant and this amount of ESTs allowed us to analyze the transcriptional activity of the potato transposable elements. We predicted the full length LTR from potato genomic database using LTR finder software. Maximum number of full length Gypsy type LTRs were present on chromosome 03 (197) and Copia type retrotransposons on chromosome number 01 (172). We have also investigated the transcriptional activities of LTR type retrotransposons in different potato organs based on the systematic search of more than two million expressed sequence tags. At least 0.86% potato ESTs show sequence similarity with LTR type retrotransposons. According to these data, the patterns of expression of each LTRs (Gypsy & Copia) is variable among various tissue specific EST libraries. In general, transcriptional activity of the Gypsy-like retrotransposons is higher compared to Copia type. Transcriptional activity of several transposable elements is especially high in Flower, Callus and root tissues. The use of powerful high-throughput sequencing technologies allowed us to elucidate the transcriptional activation in various cells of potato. In this study, we observed that Gypsy and Copia like retrotransposons have a considerable transcriptional activity in some tissues which indicate that the transposition is more frequent in various tissues specific EST libraries.
Augmentation of Travelling Salesman Problem using Bee Colony Optimization
Anshul Singh,,Mr. Devesh Narayan
International Journal of Innovative Technology and Exploring Engineering , 2012,
Abstract: Animals with social behaviors often uncover optimal solutions to a range of problems when compared to other techniques. This advantage is extensively used nowadays for a variety of applications. The bee colony optimization (BCO) is inspired by bees foraging behavior that includes colonies of artificial bees capable of solving combinatorial optimization problems e.g. Travelling Salesman Problem. K-opt local search for the value of k as 3 repeatedly reconnects random three edges of the graph after disconnecting so as to obtain refined path. In this article BCO and k-opt local search, the two heuristic techniques for optimization, are combined together to acquire sophisticated results. Comparisons of the proposed method with nearest neighborhood approach is performed and shown with presented system proved to be superior to the rest.
Tribhuvan Singh,Dhiraj kumar,Himansu Bhusan Samal,P. Sudhakar
International Research Journal of Pharmacy , 2012,
Abstract: A new series of Thiadiazole showed diversified pharmacological activities. In view of potential biological activities of Thiadiazole, it was considered worth will to synthesized2-Benzylidenylamino-5-(N—bezotriozolomethyl)-1,3,4-thiadiazoleand evaluate for their possible pharmacological activity.
A Survey on Hidden Markov Model for Credit Card Fraud Detection
Anshul Singh,Devesh Narayan
International Journal of Engineering and Advanced Technology , 2012,
Abstract: Credit card frauds are increasing day by day regardless of the various techniques developed for its detection. Fraudsters are so expert that they engender new ways for committing fraudulent transactions each day which demands constant innovation for its detection techniques as well. Many techniques based on Artificial Intelligence, Data mining, Fuzzy logic, Machine learning, Sequence Alignment, decision tree, neural network, logistic regression, na ve Bayesian, Bayesian network, metalearning, Genetic Programming etc., has evolved in detecting various credit card fraudulent transactions. A steady indulgent on all these approaches will positively lead to an efficient credit card fraud detection system. This paper presents a survey of various techniques used in credit card fraud detection mechanisms and Hidden Markov Model (HMM) in detail. HMM categorizes card holder’s profile as low, medium and high spending based on their spending behavior in terms of amount. A set of probabilities for amount of transaction is being assigned to each cardholder. Amount of each incoming transaction is then matched with card owner’s category, if it justifies a predefined threshold value then the transaction is decided to be legitimate else declared as fraudulent.
Impact of migration on child health in urban India: Evidence from NFHS-3
Raj Narayan,Aditya Singh
PeerJ , 2015, DOI: 10.7287/peerj.preprints.202v1
Abstract: Using data from the third round of National Family Health Survey (NFHS, 2005-06), the present study examined the effect of quality of housing on the risk of anthropometric failure and child health status among migrant and non-migrant children in urban India. It is very urgent to from the policy and program perspective to understand whether source of safe drinking water, type of toilet facilities, and type of housing and cooking fuel really make a difference when it comes to the health and nutritional status of Indian children, particularly the urban poor. The main findings from the present studies indicate the poor nutritional and health status of migrant and non-migrant children in urban India. There were also large interstate disparities in anthropometric failures and ARI & diarrhea among migrant and non-migrant children across various Indian states. Result from the multivariate analysis suggest that poor source of sanitation facilities and poor quality of housing significantly raised the risk of stunting and diarrhea, whereas use of safe cooking fuel reduces the likelihood of ARI among children in urban India. However, we do not find any significant effect of quality of housing on the risk of underweight and wasting. Furthermore, few of the findings from the analysis appear in opposite directions that should be interpreted with caution which might be possible due to small sample size in few categories. Therefore, we need further in-depth research at micro-level to explore the plausible mechanism of how does housing quality influence child health and nutritional status in urban India.
Population Genetics of Drosophila ananassae: Evidence for Population Sub-Structuring at the Level of Inversion Polymorphism in Indian Natural Populations
Bashisth Narayan Singh,Pranveer Singh
International Journal of Biology , 2010, DOI: 10.5539/ijb.v2n1p19
Abstract: Drosophila ananassae is a cosmopolitan and domestic species distributed in the tropical, subtropical and mildly temperate regions. Population structure analysis in forty-five Indian natural populations of D. ananassae was performed employing three cosmopolitan inversions as markers. Pairwise FST analysis and genetic distance (D) values showed strong genetic differentiation. Though, lowermost values correspond to geographically closest populations, we did not find any significant ‘isolation by distance’ effect. Values of gene flow based on FST estimates are very low (Nm < 5). All these findings, viz. strong genetic differentiation and minimal gene flow indicate strong sub-structuring in Indian natural populations of D. ananassae at the level of inversion polymorphism. This finding is particularly intriguing in case of D. ananassae as it is frequently transported via human traffic. Given limited gene flow, populations are expected to diverge genetically due to drift. Low level of gene flow coupled with high degree of genetic differentiation might have occurred historically and is maintained currently. Demographic properties, historical and contemporary events and other factors are more important in shaping the patterns of population sub-structuring, genetic differentiation and gene flow than mere terrestrial habitat characteristics (un) favorable for migration.
Isolation and Identification of Potential Probiotic Bacteria from Cattle Farm Soil in Dibrugarh District  [PDF]
Nuredin Mohamedkassm Siraj, Kaushal Sood, Raj Narayan Singh Yadav
Advances in Microbiology (AiM) , 2017, DOI: 10.4236/aim.2017.74022
Abstract: Several studies have been done to isolate probiotic bacteria from different sources. In this present study, an attempt was made to isolate, screen and identify potential probiotic bacteria from cattle farm soil in Dibrugarh district, Assam, India. At the level of screening, the result showed the isolates designated as DUA4, DUD3 and DUE2 showed a percent survival rate of 75.36, 69.14 and 52.36 respectively at a pH of 2.5. Similarly survival rate of the same isolates in 0.5% bile salt condition was found to be 117.17%, 144.59% and 118.10% for the isolates DUA4, DUD3 and DUE2 respectively. Antimicrobial activity of the isolates towards the indicator organisms tested showed that DUA4 inhibited gram positive organisms while DUD3 showed activity against both gram positive and gram negative bacteria. All the three isolates showed activity against L. monocytogenes. Autoaggregation ability of the isolates DUA4, DUD3 and DUE2 was found to be 44.15%, 54.11% and 9.42% respectively. The adhesion ability of the isolates DUD3, DUA4 and DUE2 to xylene was 61.78%, 45.37% and 14.83% respectively. Antimicrobial susceptibility test of the isolates showed that the isolates are in general sensitive to antibiotics tested. Phenotypic and genotypic analysis based on the 16S rRNA gene sequence of the isolates DUA4, DUD3 and DUE2 resulted in the identification and designation of the isolate DUA4 as Bacillus spp., DUD3 as Enterococcus faecium and DUE2 as Enterobacter sp. In conclusion, the study has indicated the possibility of isolating potential probiotic bacterial strains from cattle farm soil.
Dislocated Soft Metric Space with Soft Fixed Point Theorems  [PDF]
Balaji Raghunath Wadkar, Vishnu Narayan Mishra, Ramakant Bhardwaj, Basant Singh
Open Journal of Discrete Mathematics (OJDM) , 2017, DOI: 10.4236/ojdm.2017.73012
Abstract: In the present paper, we define Dislocated Soft Metric Space and discuss about the existence and uniqueness of soft fixed point of a cyclic mapping in soft dislocated metric space. We also prove the unique soft fixed point theorems of a cyclic mapping in the context of dislocated soft metric space. Examples are given for support of the results.
Fixed point theorem for a pair of self maps satisfying a general contractive condition of integral type
MR Singh,L Sharmeswar Singh
Kathmandu University Journal of Science, Engineering and Technology , 2010, DOI: 10.3126/kuset.v6i2.4008
Abstract: In this paper, we establish a fixed point theorem for a pair of self maps satisfying a general contractive condition of integral type. This theorem extends and generalizes some early results of Boikanyo. Key Words: L DOI: 10.3126/kuset.v6i2.4008 Kathmandu University Journal of Science, Engineering and Technology Vol.6. No II, November, 2010, pp.20-27
Performance Improvment of TCP in Ad hoc Network
Mr. Mohit Singh Tomar
Journal of Global Research in Computer Science , 2012,
Abstract: Transmission Control Protocol (TCP) is the dominating end-to-end transport layer protocol which provides secure and reliable data transfer together with some other protocols in the protocol stack. Its performance is good in wired networks where packet losses are due to congestion. Recent works in transport protocols for ad-hoc networks have investigated the impact of ad-hoc network characteristics on TCP’s performance, and proposed schemes that help TCP overcome the negative impact of such characteristics as random wireless loss and mobility.. If standard TCP is applied on wireless networks its performance degrades. in this paper we contend that there are several other factors that influence TCP’s performance degradation. we contend that existing approaches to improve TCP performance over mobile ad-hoc networks have focused only on a subset of the factors affecting TCP performance. We identify a comprehensive set of factors, aimed at improving performance by reducing the number of route failures, predicting route failures before they occur and minimizing the latency for route error propagation. We show improves on the throughput performance of a default protocol. Keywords- TCP, MANETs, LFN, Network, Wireless, routing protocol, data transmissions, destination, TCP performance, TCP’s timers.
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