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Search Results: 1 - 10 of 2373 matches for " Upendra Nath Sahu "
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Marketing of Sabai Grass in Socio-Economic Development of Tribals in Mayurbhanj District, Orissa (India)
Priti Ranjan Hathy,Upendra Nath Sahu
International Journal of Business and Management , 2010, DOI: 10.5539/ijbm.v5n2p149
Abstract: Socio-Economic development involves an increase in the material well being of the society. In a country like India, about 80 per cent of the population living in rural area and around 70 per cent of the population dependent on agriculture. Mayurbhanj is one of the richest districts in Orissa so far as forest and mineral wealth are concerned. Sabai grass industry plays a predominant role in shaping the economic destiny of the rural people in the district. The objective of this paper is to analyse the innovative schemes and the role of Sabai grass industry for the economic developments of growers of the district; Results show that the tribal of Mayurbhanj district generates the Sabai grass product marketing demand in national and international market so as to develop their economic status.
Genetic Diversity of Pigeonpea (Cajanus cajan (L.) Millsp.) Cultivars and Its Wild Relatives Using Randomly Amplified Polymorphic DNA (RAPD) Markers  [PDF]
Kusum Yadav, Sanjay Kumar Yadav, Anurag Yadav, Veda Prakash Pandey, Upendra Nath Dwivedi
American Journal of Plant Sciences (AJPS) , 2012, DOI: 10.4236/ajps.2012.33038
Abstract: Genetic diversity among and between 16 cultivars of pigeonpea (Cajanus cajan (L) Millsp.) and its wild relatives (C. albicans and C. lineatus) analysed using RAPD. Twenty two random primers with an average of 71.2% polymorphism produced 151 polymorphic bands. Cluster analysis based on these 151 RAPD markers revealed relatively low level (0.434 - 0.714) of genetic diversity among cultivars and high level of diversity between cultivars and wild relatives. C. albicans and C. lineatus showed only 0.231 similarity with each other and C. albicans showed relatively higher similarity with C. cajan cultivars than that showed by C. lineatus. In dendrogram the 16 cultivars grouped into two distinct clusters comprising of seven and nine genotypes each while the wild species form out groups. Bootstrap analysis of the dendrogram was performed and resulted in significant bootstrap values. Principal components analysis (PCA) also revealed the similar results that of unweighted pair group method with arithmetic mean (UPGMA). The first, second and third PCs contributed 55.9%, 5.9%, and 5.6% of the variation, respectively, with cumulative variation of the first three PCs was 67.4%.
Comparative Analysis of Genetic Diversity among Cultivated Pigeonpea (Cajanus cajan (L) Millsp.) and Its Wild Relatives (C. albicans and C. lineatus) Using Randomly Amplified Polymorphic DNA (RAPD) and Inter Simple Sequence Repeat (ISSR) Fingerprinting  [PDF]
Kusum Yadav, Sanjay Kumar Yadav, Anurag Yadav, Veda Prakash Pandey, Upendra Nath Dwivedi
American Journal of Plant Sciences (AJPS) , 2014, DOI: 10.4236/ajps.2014.511181

Genetic relationships of 16 cultivars of pigeonpea (Cajanus cajan (L) Millsp.) and its two wild relatives (C. albicans and C. lineatus) from different parts of the India were analysed using 22 random amplified polymorphic DNAs (RAPDs) primers and 10 inter simple sequence repeats (ISSRs) primers. Twenty two RAPD primers yielded 151 polymorphic markers (71.2%) with an average of 6.8 polymorphic band/primer. Cluster analysis based on these 151 RAPD markers revealed relatively low level (0.434 - 0.714) of genetic diversity among cultivars and high level of diversity between cultivars and wild relatives. Ten ISSR primers produced 100 bands across 16 cultivars and its wild relatives out of which 93 (93%) were polymorphic with an average of 9.3 polymorphic band/primer. Cluster analysis based on these 93 ISSR markers also revealed relatively higher level (0.328 - 0.827) of genetic diversity among cultivars as compared to RAPD markers. The polymorphic markers obtained by both RAPD and ISSR primers were pooled and the genetic diversity analysis based on these 244 markers was analysed. Jaccard’s similarity coefficient obtained by pooled data revealed very narrow range (0.477 - 0.720) among cultivated and high range between cultivated and wild species C. albicans (0.240 - 0.331) and C. lineatus (0.163 - 0.193). In the UPGMA based dendrogram the 16 cultivars were grouped into three distinct clusters. Cluster I contained two genotypes, cluster II had six and cluster III had eight genotypes. Principal components analysis (PCA) also resulted in similar pattern as that of UPGMA based analysis. The first three PCs contributed 56.26%, 5.71% and 4.97% of variation, respectively, with cumulative variation of the first three PCs was 66.96%. Both the markers and the combined data revealed similar pattern with narrow diversity among cultivars and higher diversity between cultivars and wild one, but

Self - assembly of HgTe nanoparticles into nanostars using single stranded DNA
Satchidananda Rath,Surendra Nath Sahu
Physics , 2004,
Abstract: Self-assembly of structurally tunned nearly monodispersed HgTe - ssDNA nanostars of average size 1.4 nm have been achieved by manipulating HgTe nanoparticles using single stranded (ss) DNA under galvanostatic condition. The nanostars are linked with one another by ssDNA of length 0.35 nm. Whereas, HgTe nanoparticles without ssDNA complexation show a polycrystalline character with size in the range 4 - 7 nm. Room temperature photoluminescence (PL) of HgTe - ssDNA nanostars have yielded a single narrow PL at 548.4 nm of width 8 nm that corroborates to the nearly monodispersity of the nanostars and predicts the lateral exciton transfer. On the other hand, polydispersed HgTe nanoparticles exhibit free- and bound- exciton dominated luminescence in their PL spectrum.
Trends in Private Equity and Venture Capital Investments with Special Focus on the Booming India Growth Story
Ritankar Sahu,Ananya Nath,Priyadarshi Banerjee
Journal of International Commercial Law and Technology , 2009,
Abstract: Private Equity investments have restructured the trend of acquisitions and aided in value creation as against strategic buyers. Private equity’s growing involvement in many sectors is even more striking. The nature of investments of private equity firms and funds, the strategies employed, value creating practices, profitable exits are significantly different from that of other strategic and corporate buyers. The paper deals with the above aspects. The paper is divided into two parts. Part I deals with the basics of private equity investment structures and exits. Part II of the paper deals with the private equity growth story in India. Private equity investments, proposed changes to regulations, sectoral growth, venture capital regulations as well as impact of the latest Union budget and the credit crunch have been dealt with.
Evaluating partial root-zone irrigation and mulching in okra (Abelmoschus esculentus L.) under a sub-humid tropical climate
Pravukalyan Panigrahi,Narendra Nath Sahu,Sanatan Pradhan
Journal of Agriculture and Rural Development in the Tropics and Subtropics , 2011,
Abstract: The field experiments were conducted to compare the alternate partial root-zone irrigation (APRI) with and without black plastic mulch (BPM) with full root-zone irrigation (FRI) in furrow-irrigated okra (Abelmoschus esculentus L. Moench) at Bhubaneswar, India. APRI means that one of the two neighbouring furrows was alternately irrigated during consecutive watering. FRI was the conventional method where every furrow was irrigated during each watering. The used irrigation levels were 25% available soil moisture depletion (ASMD), 50% ASMD, and 75% ASMD. The plant growth and yield parameters were observed to be significantly (p < 0.05) higher with frequent irrigation (at 25% ASMD) under all irrigation strategies. However, APRI + BPM produced the maximum plant growth and yield using 22% and 56% less water over APRI without BPM and FRI, respectively. The highest pod yield (10025 kg ha-1) was produced under APRI at 25% ASMD + BPM, which was statistically at par with the pod yield under APRI at 50% ASMD + BPM. Irrigation water use efficiency (IWUE), which indicates the pod yield per unit quantity of irrigation water, was estimated to be highest (12.3 kg m-3) under APRI at 50% ASMD + BPM, followed by APRI at 25% ASMD + BPM. Moreover, the treatment APRI at 50% ASMD + BPM was found economically superior to other treatments, generating more net return (US $ 952 ha-1) with higher benefit–cost ratio (1.70).
Improving performance of distributed data mining (DDM) with multi-agent system
Trilok Nath Pandey,Niranjan Panda,Pravat Kumar Sahu
International Journal of Computer Science Issues , 2012,
Abstract: Autonomous agents and multi-agent systems (or agents) and knowledge discovery (or data mining) are two of the most active areas in information technology. Ongoing research has revealed a number of intrinsic challenges and problems facing each area, which can't be addressed solely within the confines of the respective discipline. A profound insight of bringing these two communities together has unveiled a tremendous potential for new opportunities and wider applications through the synergy of agents and data mining. With increasing interest in this synergy, agent mining is emerging as a new research field studying the interaction and integration of agents and data mining. In this paper, we give an overall perspective of the driving forces, theoretical underpinnings, main research issues, and application domains of this field, while addressing the state-of-the-art of agent mining research and development. Our review is divided into three key research topics: agent-driven data mining, data mining-driven agents, and joint issues in the synergy of agents and data mining. This new and promising field exhibits a great potential for groundbreaking work from foundational, technological and practical perspectives.
Subhashree Sahoo, Chandra Kanti Chakraborti, Subash Chandra Mishra & Upendra Nath Nanda
International Journal of Research and Reviews in Applied Sciences , 2011,
Role of Efflux Pumps and Intracellular Thiols in Natural Antimony Resistant Isolates of Leishmania donovani
Smita Rai, Bhaskar, Sudhir K. Goel, Upendra Nath Dwivedi, Shyam Sundar, Neena Goyal
PLOS ONE , 2013, DOI: 10.1371/journal.pone.0074862
Abstract: Background In view of the recent upsurge in the phenomenon of therapeutic failure, drug resistance in Leishmania, developed under natural field conditions, has become a great concern yet little understood. Accordingly, the study of determinants of antimony resistance is urgently warranted. Efflux transporters have been reported in Leishmania but their role in clinical resistance is still unknown. The present study was designed to elucidate the mechanism of natural antimony resistance in L. donovani field isolates by analyzing the functionality of efflux pump(s) and expression profiles of known genes involved in transport and thiol based redox metabolism Methodology/Principal Findings We selected 7 clinical isolates (2 sensitive and 5 resistant) in addition to laboratory sensitive reference and SbIII resistant mutant strains for the present study. Functional characterization using flow cytometry identified efflux pumps that transported substrates of both P-gp and MRPA and were inhibited by the calmodulin antagonist trifluoperazine. For the first time, verapamil sensitive efflux pumps for rhodamine 123 were observed in L. donovani that were differentially active in resistant isolates. RT-PCR confirmed the over-expression of MRPA in isolates with high resistance index only. Resistant isolates also exhibited consistent down regulation of AQP1 and elevated intracellular thiol levels which were accompanied with increased expression of ODC and TR genes. Interestingly, γ-GCS is not implicated in clinical resistance in L. donovani isolates. Conclusions/Significance Here we demonstrate for the first time, the role of P-gp type plasma membrane efflux transporter(s) in antimony resistance in L. donovani field isolates. Further, decreased levels of AQP1 and elevated thiols levels have emerged as biomarkers for clinical resistance.
Comparison of Net Global Warming Potential and Greenhouse Gas Intensity Affected by Management Practices in Two Dryland Cropping Sites  [PDF]
Upendra M. Sainju
Journal of Environmental Protection (JEP) , 2015, DOI: 10.4236/jep.2015.69092
Abstract: Little is known about the effect of management practices on net global warming potential (GWP) and greenhouse gas intensity (GHGI) that account for all sources and sinks of greenhouse gas (GHG) emissions in dryland cropping systems. The objective of this study was to compare the effect of a combination of tillage, cropping system, and N fertilization on GWP and GHGI under dryland cropping systems with various soil and climatic conditions from 2008 to 2011 in western North Dakota and eastern Montana, USA. Treatments in western North Dakota with sandy loam soil and 373 mm annual precipitation were conventional till malt barley (Hordeum vulgarie L.) with 67 kg N ha-1 (CTB/N1), conventional till malt barley with 0 kg N ha-1 (CTB/N0), no-till malt barley-pea (Pisum sativum L.) with 67 kg N ha-1 (NTB-P/N1), no-till malt barley with 67 kg N ha-1 (NTB/N1), and no-till malt barley with 0 kg N ha-1 (NTB/N0). In eastern Montana with loam soil and 350 mm annual precipitation, treatments were conventional till malt barley-fallow with 80 kg N ha-1 (CTB-F/N1), conventional till malt barley-fallow with 0 kg N ha-1 (CTB-F/N0), no-till malt barley-pea with 80 kg N ha-1 (NTB-P/N1), no-till malt barley with 80 kg N ha-1 (NTB/N1), and no-till malt barley with 0 kg N ha-1 (NTB/N0). Carbon dioxide sink as soil C sequestration rate at the 0 - 10 cm depth was greater in NTB-P/N1 and NTB/N1 than the other treatments at both sites and greater in eastern Montana than western North Dakota. Carbon dioxide sources were greater with N fertilization than without and greater with conventional till than no-till. Soil total annual N2O and CH4 fluxes varied among treatments, years, and locations. Net GWP and GHGI were lower in NTB-P/N1 than the other treatments in western North Dakota and lower in NTB-P/N1 and NTB/N1 than the other treatments in eastern Montana. Net GWP across similar treatments was lower in eastern Montana than western North Dakota, but GHGI was similar. Annualized crop yield was greater in the treatments with N fertilization than without. Because of greater grain yield but lower GWP and GHGI, no-till malt barley-pea rotation with adequate N fertilization can be used as a robust management practice to mitigate net GHG emissions while sustaining dryland crop yields, regardless of soil and climatic conditions. Loam soil reduced GWP and crop yields compared with sandy loam soil.
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