386 results on '"S. Naresh"'
Search Results
202. Detection, Localization and Tyrosine Phosphorylation Status of Ser/Thr Protein Phosphatase1γ in Freshly Ejaculated, In Vitro Capacitated and Cryopreserved Buffalo Spermatozoa
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S.K. Atreja and S Naresh
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Male ,endocrine system ,Buffaloes ,Blotting, Western ,Fluorescent Antibody Technique ,macromolecular substances ,Biology ,chemistry.chemical_compound ,Endocrinology ,Capacitation ,Protein Phosphatase 1 ,Animals ,Protein Isoforms ,Tyrosine ,Phosphorylation ,Sperm motility ,Cryopreservation ,urogenital system ,Protein phosphatase 1 ,Tyrosine phosphorylation ,Okadaic acid ,Molecular biology ,Spermatozoa ,Blot ,chemistry ,Sperm Motility ,Animal Science and Zoology ,Sperm Capacitation ,Biotechnology - Abstract
Several recent studies have indicated the important roles of Ser/Thr protein phosphatase1γ (PP1γ) in regulating the motility and capacitation of mammalian spermatozoa. Here, we report the presence and distribution of PP1γ protein in freshly ejaculated, in vitro capacitated and cryopreserved buffalo spermatozoa. The presence of PP1γ and its distribution were assessed by Western blotting and indirect immunofluorescence techniques, whereas the isoforms of PP1γ and their tyrosine phosphorylation status were identified by using 2D electrophoresis. The number of isoforms and the status of tyrosine phosphorylation of PP1γ were increased in capacitated spermatozoa when compared with freshly ejaculated spermatozoa. Differential pattern of expression and tyrosine phosphorylation of PP1γ were observed in cryopreserved spermatozoa, wherein some isoforms were degraded and some were tyrosine phosphorylated. In addition, immunofluorescence technique revealed that PP1γ was localized to principle, mid-piece, post-acrosomal and equatorial regions of buffalo spermatozoa. Differential distribution of tyrosine-phosphorylated proteins were observed in fresh, capacitated and cryopreserved spermatozoa. The tyrosine phosphorylation of several proteins (20, 37, 38, 52, 60, 79 and 100 kDa) were increased when sperm cells were incubated with PP1γ inhibitor, okadaic acid. Together, our results suggest that buffalo spermatozoa express different isoforms of PP1γ protein. The protein expression and tyrosine phosphorylation of PP1γ were increased during capacitation. Furthermore, the differential pattern of expression and tyrosine phosphorylation of PP1γ were observed in cryopreserved spermatozoa. In addition, the inhibition of PP1γ protein increases protein tyrosine phosphorylation in capacitation.
- Published
- 2015
203. Influence of Cytoplasmic Male Sterility on Expression of Different Mechanisms of Resistance in Sorghum to Atherigona soccata (Diptera: Muscidae)
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Mukesh K. Dhillon, Hari C. Sharma, Jagdish S. Naresh, Ram Singh, and G. Pampapathy
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Ecology ,Insect Science ,General Medicine - Published
- 2006
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204. Influence of Cytoplasmic Male Sterility on Expression of Different Mechanisms of Resistance in Sorghum to Atherigona soccata (Diptera: Muscidae)
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G. Pampapathy, Ram Singh, Jagdish S. Naresh, M. K. Dhillon, and Hari C. Sharma
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Ecology ,Software maintainer ,fungi ,Antibiosis ,Cytoplasmic male sterility ,food and beverages ,General Medicine ,Biology ,Fecundity ,biology.organism_classification ,Sorghum ,Horticulture ,health services administration ,Insect Science ,Muscidae ,Botany ,Tiller ,health care economics and organizations ,Hybrid - Abstract
Atherigona soccata (Rondani) (Diptera: Muscidae) is one of the most important pests of sorghum, Sorghum bicolor (L.) Moench, in Asia, Africa, and the Mediterranean Europe. Exploitation of cytoplasmic male sterility (CMS) for hybrid production has resulted in considerable narrowing of the genetic base and may increase the vulnerability of this crop to insect pests. Therefore, we studied the expression of different mechanisms of resistance in sorghum to A. soccata in CMS (A) and maintainer (B) lines of 12 genotypes under field and greenhouse conditions. The CMS lines of A. soccata-resistant genotypes were preferred for oviposition (78.5 versus 71.5% plants with eggs) and suffered greater deadheart incidence (47.6 versus 41.6%) than the corresponding maintainer lines, whereas such differences were not apparent in CMS lines belonging to the susceptible genotypes (92.7 versus 92.3% plants with eggs and 75.6 versus 74.6% deadhearts) under multichoice field conditions. Similar differences also were observed under controlled conditions in the greenhouse. The larval period (9.0 versus 8.8 d) and pupal mortality (18.4 versus 13.4%) were greater on maintainer lines than that on the CMS lines in the resistant group. The male and female pupal weights, fecundity, and antibiosis index were greater on the CMS than on the maintainer lines. The maintainer lines showed better recovery resistance than the CMS lines, but no such differences were observed in tiller deadhearts. The differences in susceptibility to A. soccata were greater in the A. soccata resistant CMS and maintainer lines than in the CMS and maintainer lines belonging to susceptible genotypes. Conversion of A. soccata-resistant genotypes into alternate less susceptible cytoplasmic backgrounds may be undertaken for developing sorghum hybrids with stable resistance to A. soccata.
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- 2006
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205. Inheritance of Resistance to Sorghum Shoot Fly, Atherigona soccata
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J. S. Naresh, Belum V. S. Reddy, M. K. Dhillon, Ram Singh, and Hari C. Sharma
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biology ,Resistance (ecology) ,Heterosis ,fungi ,Inheritance (genetic algorithm) ,food and beverages ,Sorghum ,biology.organism_classification ,Agronomy ,Muscidae ,Shoot ,PEST analysis ,Agronomy and Crop Science ,Hybrid - Abstract
The sorghum shoot fly, Atherigona soccata Rond. (Diptera: Muscidae), is one of the most important pests of sorghum [Sorghum bicolor (L.) Moench], and host plant resistance is an important component for the management of this pest. Most of the sorghum hybrids currently under cultivation are based on cytoplasmic malesterility (CMS). To develop a strategy to develop sorghum hybrids with resistance to shoot fly, we studied the nature of gene action for resistance to this pest in F1 hybrids derived from shoot fly-resistant and -susceptible CMS and restorer lines. The hybrids based on shoot flyresistant CMS and restorer lines were glossy and trichomed and had lower proportion of plants with eggs (78.5% vs. 88.4 to 93.3%) and deadhearts (40.8% vs. 60.8 to 75.3%) than the hybrids based on other cross combinations, suggesting that resistance is required in both CMS and restorer lines for obtaining shoot fly-resistant hybrids. Proportional contributions of CMS lines for oviposition, deadhearts, leaf glossiness, and recovery resistance were greater than those of the restorer lines. The general (GCA) and specific combining ability (SCA) estimates suggested that inheritance for oviposition nonpreference, deadhearts, recovery resistance, and the morphological traits associated with resistance or susceptibility to A. soccata were governed by additive-type of gene action. The SCA effects and heterosis estimates indicated that heterosis breeding would not be rewarding in breeding for resistance to shoot fly.
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- 2006
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206. Evaluating InfoCrop model for growth, development and yield of spring wheat at farmers' field in semi-arid environment.
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DHAKAR, RAJKUMAR, SEHGAL, VINAY KUMAR, CHAKRABORTY, DEBASISH, MUKHERJEE, JOYDEEP, and KUMAR, S. NARESH
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WHEAT farmers ,CROP growth ,WHEAT ,WHEAT yields ,LEAF area index ,CROP yields ,CROP development - Abstract
Evaluation of crop simulation model for growth and development of crops at farmers' field is uncommon, as large variability exists in management practices at farmers' fields. Present study was attempted to evaluate the suitability of InfoCrop v2.1 model for prediction of growth, development and yield of wheat crop at farmers' fields using two years data i.e. 2015-16 & 2016-17. A total of 42 farmers' fields were selected in Pataudi block of Haryana state. The large variability in wheat sowing date (1-Nov to 25-Dec), seed rate (87 to 150 kgha
-1 ), N application rate (70 to 195 kgha-1 ) and number of irrigations (5-8) were observed in farmers' field. InfoCrop model could able to predict well days to anthesis and physiological maturity within an acceptable error of 5% (RMSE~3 days). Measured leaf area index (LAI) matched well with simulated LAI (RMSE ~ 0.5). The agreement between observed and model simulated wheat grain yield was found to be satisfactory (nRMSE ~ 6-8%). We conclude that InfoCrop-wheat model satisfactorily simulate the growth, development and yield of wheat crop under varied management practices at farmers' fields, and hence can be applied for agricultural applications for farmers [ABSTRACT FROM AUTHOR]- Published
- 2019
207. Influence of physico-chemical traits of bitter gourd, Momordica charantia L. on larval density and resistance to melon fruit fly, Bactrocera cucurbitae (Coquillett)
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N. K. Sharma, M. K. Dhillon, J. S. Naresh, and Ram Singh
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biology ,Momordica ,Flesh ,fungi ,Bitter gourd ,food and beverages ,medicine.disease_cause ,biology.organism_classification ,Ascorbic acid ,Horticulture ,Agronomy ,Insect Science ,Tephritidae ,parasitic diseases ,Infestation ,medicine ,Bactrocera ,Agronomy and Crop Science ,Cucurbitaceae - Abstract
Melon fruit fly, Bactrocera cucurbitae (Coquillett) is one of the most important pests of bitter gourd, Momordica charantia L. Because of the difficulties associated with chemical control of this pest, it is important to identify the traits associated with resistance and their influence on pest multiplication. There were significant differences in test genotypes for fruit infestation and larval density/fruit. The wild accessions, IC 256185, IC 248256, IC 213311, IC 248282, IC 256110 and IC 248281 were identified as resistance sources to melon fruit fly. There was a significant and positive correlation ( r = 0.96) between percentage fruit infestation and larval density/fruit. Percentage fruit infestation and larval density/fruit were positively correlated with depth of ribs, flesh thickness, fruit diameter and fruit length, and negatively associated with fruit toughness. Flesh thickness and fruit diameter explained 93.0% of the total variation for fruit fly infestation, and flesh thickness and fruit length explained 76.3% of the variation for larval density/fruit. Ascorbic acid, nitrogen, phosphorus, potassium, protein, reducing sugars, non-reducing sugars and total sugars were negatively correlated, while the moisture content showed a positive association with fruit fly infestation and larval density/fruit. Moisture, potassium and reducing sugar content explained 97.4% of the total variation in fruit infestation, while moisture, phosphorus, protein, reducing and total sugars explained 85.7% variation for larval density/fruit
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- 2005
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208. Relative susceptibility of different male-sterile cytoplasms in sorghum to shoot fly, Atherigona soccata
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Belum V. S. Reddy, Hari C. Sharma, Ram Singh, Zhu Kai, M. K. Dhillon, and J. S. Naresh
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Software maintainer ,fungi ,Cytoplasmic male sterility ,Antibiosis ,food and beverages ,Plant Science ,Horticulture ,Biology ,Sorghum ,biology.organism_classification ,Agronomy ,Shoot ,Genetics ,PEST analysis ,Plant breeding ,Agronomy and Crop Science ,Hybrid - Abstract
The shoot fly, Atherigona soccata is an important pest of sorghum, and host plant resistance is one of the most effective components for managing this pest. Most of the hybrids grown in India based on milo cytoplasm (A1 cytoplasm) are highly susceptible to shoot fly. Therefore, the present studies were undertaken to evaluate different male-sterile cytoplasms (CMS) for their relative susceptibility to sorghum shoot fly. Oviposition and deadheart formation were significantly lower on the maintainer lines as compared to the corresponding male-sterile lines. Among the cytoplasms tested, A4M cytoplasm showed antixenosis for oviposition and suffered lower deadheart formation than the other cytoplasms tested. The A4G1 and A4M cytoplasms suffered lower deadhearts in tillers than the other cytoplasms. Recovery following shoot fly damage in A4M, A3, and A2 cytoplasms was better than in the other cytoplasms tested. The larval and pupal periods were longer and male and female pupal weights lower in A4M and A4VzM CMS backgrounds compared to the other CMS systems. Fecundity and antibiosis indices on CMS lines were lower than on the B-lines. The A4M cytoplasm was found to be relatively resistant to sorghum shoot fly, and can be exploited for developing shoot fly-resistant hybrids for sustainable crop production in future.
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- 2005
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209. Mechanisms of resistance to shoot fly, Atherigona soccata in sorghum
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Ram Singh, J. S. Naresh, M. K. Dhillon, and Hari C. Sharma
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Germplasm ,fungi ,Antibiosis ,food and beverages ,Plant Science ,Horticulture ,Biology ,Sorghum ,biology.organism_classification ,Trichome ,Agronomy ,Seedling ,Shoot ,Genetics ,Poaceae ,PEST analysis ,Agronomy and Crop Science - Abstract
Sorghum shoot fly, Atherigona soccata (Rondani) is an important pest of sorghum in Asia, Africa, and Mediterranean Europe, and host plant resistance is an important component for the management of this pest. The levels of resistance in the cultivated germplasm are low to moderate, and therefore, it is important to identify genotypes with different mechanisms of resistance to pyramid the resistance genes. We studied the antixenosis for oviposition, antibiosis, and tolerance components of resistance in a diverse array of shoot fly-resistant and -susceptible genotypes. The main plants and tillers of SFCR 151, ICSV 705, SFCR 125, and, IS 18551 experienced lower shoot fly deadhearts at 28 days after seedling emergence, produced more number of productive tillers. The insects fed on these genotypes also exhibited longer larval period (10.1–11.0 days compared to 9.3 days on Swarna), lower larval survival and adult emergence (54.7–67.8 and 46.7–52.2% compared to 73.3 and 60.6% on Swarna, respectively), and lower growth and adult emergence indices as compared to the susceptible check, Swarna. Physico-chemical traits such as leaf glossiness, trichome density, and plumule and leaf sheath pigmentation were found to be associated with resistance, and chlorophyll content, leaf surface wetness, seedling vigor, and waxy bloom with susceptibility to shoot fly and explained 88.5% of the total variation in deadhearts. Step-wise regression indicated that 90.4% of the total variation in deadhearts was due to leaf glossiness and trichome density. The direct and indirect effects, correlation coefficients, multiple and step-wise regression analysis suggested that deadhearts, plants with eggs, leaf glossiness, trichomes on the abaxial surface of the leaf, and leaf sheath pigmentation can be used as marker traits to select for resistance to shoot fly, A. soccata in sorghum.
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- 2005
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210. Security challenges and issues of the IoT system
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CH Sandeep, P. Pramod Kumar, and S. Naresh Kumar
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business.industry ,Computer science ,Public Health, Environmental and Occupational Health ,Computer security ,computer.software_genre ,Internet of Things ,business ,computer - Published
- 2018
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211. Physiological performance of pigeonpea (Cajanus cajan) in different cropping systems and moisture conservation practices under rainfed conditions
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S. Naresh, D. K. Sharma, V. V. Kaje, and K. S. Muralikrishna
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Cajanus ,Moisture ,Agronomy ,Biology ,biology.organism_classification ,Cropping - Published
- 2018
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212. Opportunities for applying deep learning networks to tumour classification
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P. Pramod Kumar, CH Sandeep, S. Naresh Kumar, and S. Shwetha
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Computer science ,business.industry ,Deep learning ,020208 electrical & electronic engineering ,Public Health, Environmental and Occupational Health ,020207 software engineering ,02 engineering and technology ,Machine learning ,computer.software_genre ,0202 electrical engineering, electronic engineering, information engineering ,Tumour classification ,Artificial intelligence ,business ,computer - Published
- 2018
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213. An Efficient Framework for Building Fuzzy Associative Classifier Using High-Dimensional Dataset
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Sireesha Rodda, S. Naresh, and M. Vijaya Bharathi
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Clustering high-dimensional data ,Fuzzy clustering ,Association rule learning ,business.industry ,Computer science ,Machine learning ,computer.software_genre ,Fuzzy logic ,ComputingMethodologies_PATTERNRECOGNITION ,Leverage (statistics) ,Artificial intelligence ,business ,Cluster analysis ,computer ,Classifier (UML) ,Associative property - Abstract
Association Rule Mining (ARM) with reference to fuzzy logic is used to further data mining tasks for classification and clustering. Traditional Fuzzy ARM algorithms have failed to mine rules from high-dimensional data efficiently, since those are meant to deal with relatively much less number of attributes or dimensions. Fuzzy ARM with high-dimensional data is a challenging problem to be addressed. This paper uses a quick and economical Fuzzy ARM algorithm FAR-HD, which processes frequent item sets using a two-phased multiple-partition approach especially for large high-dimensional datasets. The proposed algorithm is an extension to the FAR-HD process in which it improves the accuracy in terms of associative soft category labels by building a framework for fuzzy associative classifier to leverage the functionality of fuzzy association rules. Fuzzy ARM represent latent and dominant patterns in the given dataset, such a classifier is anticipated to supply superb accuracy particularly in terms of fuzzy support.
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- 2015
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214. VSS Technique Using the Combination of Hill Cipher, Random Grid and Linear Equation Based Method
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S. Naresh Babu and K.A. Girish
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Computer science ,Hill cipher ,Random grid ,Algorithm ,Linear equation - Published
- 2015
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215. A statistical analysis of three ensembles of crop model responses to temperature and CO2 concentration
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Joost Wolf, Xinyou Yin, Pierre Martre, Zhengtao Zhang, H. K. Soo, Manuel Marcaida, Nadine Brisson, Patrick Bertuzzi, Soo-Hyung Kim, Yan Zhu, Roberto C. Izaurralde, L. A. Hunt, Maria I. Travasso, Christian Baron, James W. Jones, R.E.E. Jongschaap, T. Palosuo, Daniel Wallach, Jerry L. Hatfield, Christian Biernath, G. De Sanctis, Senthold Asseng, H. Yoshida, Donald S. Gaydon, Edmar Teixeira, Davide Cammarano, Alex C. Ruane, C. Nendel, T. Hasegawa, Thilo Streck, Garry O'Leary, Upendra Singh, Frank Ewert, Delphine Deryng, R. Goldberg, Bas A. M. Bouman, Peter J. Thorburn, Tao Li, Roberto Confalonieri, Myriam Adam, Jes Olesen, Reimund P. Rötter, Tamon Fumoto, Patricio Grassini, Joachim Ingwersen, Robert F. Grant, Katharina Waha, James Williams, Fulu Tao, Eckart Priesack, Pramod K. Aggarwal, Liang Tang, Sebastian Gayler, Jordi Doltra, L. Heng, Christoph Müller, J.G. Conijn, Iwan Supit, S. Naresh Kumar, Iurii Shcherbak, Jeffrey W. White, Hendrik Boogaard, Kenneth J. Boote, David Makowski, Federico Sau, Jean-Louis Durand, Mikhail A. Semenov, Claudio O. Stöckle, Marc Corbeels, Steven Hoek, Simone Bregaglio, Hiroshi Nakagawa, Philippe Oriol, Anthony Challinor, R. A. Kemanian, Carlos Angulo, Pasquale Steduto, Bruno Basso, Kurt Christian Kersebaum, Cynthia Rosenzweig, Dennis Timlin, J. Hooker, Samuel Buis, Maria Virginia Pravia, Françoise Ruget, Dominique Ripoche, Simona Bassu, Pierre Stratonovitch, Jon I. Lizaso, Balwinder Singh, Tom M. Osborne, Paul W. Wilkens, Agronomie, Institut National de la Recherche Agronomique (INRA)-AgroParisTech, Department of Agricultural and Biological Engineering [Gainesville] (UF|ABE), Institute of Food and Agricultural Sciences [Gainesville] (UF|IFAS), University of Florida [Gainesville] (UF)-University of Florida [Gainesville] (UF), Institute of Crop Science and Resource Conservation [Bonn] (INRES), Rheinische Friedrich-Wilhelms-Universität Bonn, Unité de Recherche Pluridisciplinaire Prairies et Plantes Fourragères (P3F), Institut National de la Recherche Agronomique (INRA), International Rice Research Institute [Philippines] (IRRI), Consultative Group on International Agricultural Research [CGIAR] (CGIAR), Int Rice Res Inst, Los Banos, Philippines, Université Paris Diderot - Paris 7 (UPD7), Génétique Diversité et Ecophysiologie des Céréales (GDEC), Institut National de la Recherche Agronomique (INRA)-Université Blaise Pascal - Clermont-Ferrand 2 (UBP), Amélioration génétique et adaptation des plantes méditerranéennes et tropicales (UMR AGAP), Institut National de la Recherche Agronomique (INRA)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), International Water Management Institute, Research Program on Climate Change, Agriculture and Food Security, CGIAR, Institute of Crops Science and Resource Conservation INRES, Territoires, Environnement, Télédétection et Information Spatiale (UMR TETIS), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-AgroParisTech-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), Department of Geological Sciences and W. K. Kellogg Biological Station, Michigan State University [East Lansing], Michigan State University System-Michigan State University System, Department of Geological Sciences [East Lansing], Agroclim (AGROCLIM), German Research Center for Environmental Health, Institute of Soil Ecololgy, Helmholtz-Zentrum München (HZM), Center for Geo-information, Alterra, Department of Agronomy, University of Florida [Gainesville] (UF), Cassandra Lab, University of Milan, Environnement Méditerranéen et Modélisation des Agro-Hydrosystèmes (EMMAH), Avignon Université (AU)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), The James Hutton Institute, CGIAR ESSP Program on Climate Change, Agriculture and Food Security, International Center for Tropical Agriculture, School of Earth and Environment [Leeds] (SEE), University of Leeds, Plant Research International, Wageningen University and Research [Wageningen] (WUR), Embrapa Cerrados, Agroécologie et Intensification Durables des cultures annuelles (UPR AIDA), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), Tyndall Centre for Climate Change Research, School of Environmental Science, University of East Anglia [Norwich] (UEA), European Commission - Joint Research Centre [Ispra] (JRC), Cantabrian Agricultural Research and Training Centre, Tsukuba, National Institute of Agro-Environmental Sciences (NIAES), Agriculture Flagship, Commonwealth Scientific and Industrial Research Organisation [Canberra] (CSIRO), WESS Water and Earth System Science Competence Cluster, Eberhard Karls Universität Tübingen = Eberhard Karls University of Tuebingen, NASA Goddard Institute for Space Studies (GISS), NASA Goddard Space Flight Center (GSFC), Departement of Renewable Resources, University of Alberta, Department of Agronomy and Horticulture, University of Nebraska [Lincoln], University of Nebraska System-University of Nebraska System, National Laboratory for Agriculture and Environment, International Atomic Energy Agency [Vienna] (IAEA), Centre for Geo-Information, Agriculture Department, University of Reading (UOR), Department of Plant Agriculture, University of Guelph, Institute of Soil Science and Land Evaluation, University of Hohenheim, Department of Geographical Sciences, University of Maryland [College Park], University of Maryland System-University of Maryland System, AGroécologie, Innovations, teRritoires (AGIR), Institut National de la Recherche Agronomique (INRA)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées, Instituto Nacional de Investigación Agropecuaria (INIA), Institute of Landscape System Analysis, Leibniz-Zentrum für Agrarlandschaftsforschung = Leibniz Centre for Agricultural Landscape Research (ZALF), College of the Environment, School of Environmental and Forest Sciences, University of Washington, Department Produccion Vegetal, Fitotecnia, Universidad Politécnica de Madrid (UPM), Potsdam Institute for Climate Impact Research (PIK), National Agriculture and Food Research Organization (NARO), Centre for Environment Science and Climate Resilient Agriculture (CESCRA), Indian Agricultural Research Institute (IARI), Institute of Landscape Systems Analysis, Department of Economic Development Jobs, Transport and Resources, Grains Innovation Park, Department of Agroecology, Aarhus University [Aarhus], Walker Institute, NCAS Climate, Natural Resources Institute Finland, Department of Plant Science, Pennsylvania State University (Penn State), Penn State System-Penn State System, German Research Center for Environmental Health, Institute of Soil Ecology, Department Biologia Vegetal, Computational and Systems Biology Department, Rothamsted Research, Department of Geological Sciences and W.K. Kellogg Biological Station, International Maize and Wheat Improvement Centre [Inde] (CIMMYT), International Maize and Wheat Improvement Center (CIMMYT), Consultative Group on International Agricultural Research [CGIAR] (CGIAR)-Consultative Group on International Agricultural Research [CGIAR] (CGIAR), International Fertilizer Development Center (IFDC), College of the Environment, School of Environmental and Forest Science, University of Washington [Seattle], FAO Sub-regional Office for Eastern Africa [Addis Ababa, Ethiopie] (FAO), Food and Agriculture Organization of the United Nations [Rome, Italie] (FAO), Biological Systems Engineering, Washington State University (WSU), Plant Production Systems and Earth System Science, National Engineering and Technology Center for Information Agriculture, Nanjing Agricultural University, Sustainable Production, Plant & Food Research, ARS Crop Systems and Global Change Laboratory, United States Department of Agriculture, CIRN, Institute for Climate and Water, Instituto Nacional de Tecnología Agropecuaria (INTA), Agriculture, Agrosystèmes Cultivés et Herbagers (ARCHE), Institut National de la Recherche Agronomique (INRA)-École nationale supérieure agronomique de Toulouse [ENSAT]-Institut National Polytechnique (Toulouse) (Toulouse INP), Arid-Land Agricultural Research Center, Texas AgriLife Research and Extension, Texas A&M University System, Centre for Crop Systems Analysis, State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University (BNU), Metaprogramme ACCAF, Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Helmholtz Zentrum München = German Research Center for Environmental Health, Università degli Studi di Milano = University of Milan (UNIMI), University of Nebraska–Lincoln, Université de Toulouse (UT)-Université de Toulouse (UT), Natural Resources Institute Finland (LUKE), Biotechnology and Biological Sciences Research Council (BBSRC)-Biotechnology and Biological Sciences Research Council (BBSRC), Nanjing Agricultural University (NAU), Institut National de la Recherche Agronomique (INRA)-École nationale supérieure agronomique de Toulouse (ENSAT), Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National Polytechnique (Toulouse) (Toulouse INP), AgroParisTech-Institut National de la Recherche Agronomique (INRA), Agricultural and Biological Engineering Department, University of Florida [Gainesville], Institute of Crop Science and Resource Conservation INRES, International Rice Research Institute, Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)-Institut National de la Recherche Agronomique (INRA)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro), UE Agroclim (UE AGROCLIM), Wageningen University and Research Centre [Wageningen] (WUR), Agroécologie et Intensification Durables des cultures annuelles (Cirad-Persyst-UPR 115 AIDA), Département Performances des systèmes de production et de transformation tropicaux (Cirad-PERSYST), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), Eberhard Karls Universität Tübingen, Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National de la Recherche Agronomique (INRA), National Agriculture and Food Research Organization, International Maize and Wheat Improvement Centre (CIMMYT), Food and Agricultural Organization (FAO), New Zealand Institute for Plant and Food Research Limited, Institut National de la Recherche Agronomique (INRA)-Ecole Nationale Supérieure Agronomique de Toulouse-Institut National Polytechnique (Toulouse) (Toulouse INP), Beijing Normal University, Institut National de la Recherche Agronomique ( INRA ) -AgroParisTech, University of Bonn (Rheinische Friedrich-Wilhelms), Unité de Recherche Pluridisciplinaire Prairies et Plantes Fourragères ( P3F ), Institut National de la Recherche Agronomique ( INRA ), Génétique Diversité et Ecophysiologie des Céréales ( GDEC ), Institut National de la Recherche Agronomique ( INRA ) -Université Blaise Pascal - Clermont-Ferrand 2 ( UBP ), Amélioration génétique et adaptation des plantes méditerranéennes et tropicales ( UMR AGAP ), Institut national de la recherche agronomique [Montpellier] ( INRA Montpellier ) -Centre international d'études supérieures en sciences agronomiques ( Montpellier SupAgro ) -Centre de Coopération Internationale en Recherche Agronomique pour le Développement ( CIRAD ) -Institut national d’études supérieures agronomiques de Montpellier ( Montpellier SupAgro ), Territoires, Environnement, Télédétection et Information Spatiale ( UMR TETIS ), Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture ( IRSTEA ) -AgroParisTech-Centre de Coopération Internationale en Recherche Agronomique pour le Développement ( CIRAD ), Department of Geological Sciences, W.K. Kellogg Biological Station, Michigan State Univ, Dept Geol Sci, E Lansing, MI 48823 USA, UE Agroclim ( UE AGROCLIM ), Helmholtz-Zentrum München ( HZM ), Environnement Méditerranéen et Modélisation des Agro-Hydrosystèmes ( EMMAH ), Université d'Avignon et des Pays de Vaucluse ( UAPV ) -Institut National de la Recherche Agronomique ( INRA ), Invergowrie, School of Earth and Environment [Leeds] ( SEE ), Wageningen University and Research Centre [Wageningen] ( WUR ), Agro-ecologyand Sustainable Intensification of Annual Crops, Centre de Coopération Internationale en Recherche Agronomique pour le Développement ( CIRAD ), University of East Anglia [Norwich] ( UEA ), European Commission - Joint Research Centre [Ispra] ( JRC ), National Institute for Agro-Environmental Sciences, Commonwealth Scientific and Industrial Research Organisation, NASA Goddard Institute for Space Studies ( GISS ), NASA Goddard Space Flight Center ( GSFC ), University of Nebraska-Lincoln, International Atomic Energy Agency [Vienna] ( IAEA ), University of Reading ( UOR ), UMR 1248 Agrosystèmes et Développement Territorial (AGIR), Agro-ecology and Sustainable Intensification of Annual Crops, Instituto Nacional de Investigación Agropecuaria, Leibniz Centre for Agricultural Landscape Research, Universidad Politécnica de Madrid ( UPM ), Potsdam Institute for Climate Impact Research ( PIK ), Centre for Environment Science and Climate Resilient Agriculture ( CESCRA ), Indian Agricultural Research Institute ( IARI ), PennState University [Pennsylvania] ( PSU ), W.K. Kellogg Biological Station, Department of Geological Sciences, International Maize and Wheat Improvement Centre ( CIMMYT ), International Fertilizer Development Center ( IFDC ), Food and Agricultural Organization ( FAO ), Washington State University ( WSU ), Instituto Nacional de Tecnología Agropecuaria, Agrosystèmes Cultivés et Herbagers ( ARCHE ), Institut National Polytechnique [Toulouse] ( INP ) -Institut National de la Recherche Agronomique ( INRA ) -Ecole Nationale Supérieure Agronomique de Toulouse, and Texas A and M University ( TAMU )
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[SDV.SA]Life Sciences [q-bio]/Agricultural sciences ,Atmospheric Science ,010504 meteorology & atmospheric sciences ,F62 - Physiologie végétale - Croissance et développement ,01 natural sciences ,Statistics ,Aardobservatie en omgevingsinformatica ,Climate change ,Crop model ,[ SDV.SA ] Life Sciences [q-bio]/Agricultural sciences ,Triticum ,Mathematics ,2. Zero hunger ,Global and Planetary Change ,Mathematical model ,Air ,Forestry ,Regression analysis ,04 agricultural and veterinary sciences ,PE&RC ,[ SDE.MCG ] Environmental Sciences/Global Changes ,Rendement des cultures ,Plant Production Systems ,Statistical model ,Modèle mathématique ,Atmosphère ,Earth Observation and Environmental Informatics ,Yield ,Crop Physiology ,P40 - Météorologie et climatologie ,[SDE.MCG]Environmental Sciences/Global Changes ,Oryza sativa ,Zea mays ,Earth System Science ,Emulator ,Agro Water- en Biobased Economy ,Alterra - Centrum Bodem ,Precipitation ,Croissance ,0105 earth and related environmental sciences ,Meta-model ,Changement climatique ,Hydrology ,Modélisation des cultures ,Crop yield ,Simulation modeling ,Soil Science Centre ,15. Life on land ,Température ,Laboratorium voor Phytopathologie ,Climate Resilience ,13. Climate action ,Klimaatbestendigheid ,Yield (chemistry) ,Plantaardige Productiesystemen ,Laboratory of Phytopathology ,040103 agronomy & agriculture ,0401 agriculture, forestry, and fisheries ,Leerstoelgroep Aardsysteemkunde ,Plante de culture ,Agronomy and Crop Science ,Dioxyde de carbone - Abstract
Ensembles of process-based crop models are increasingly used to simulate crop growth for scenarios of temperature and/or precipitation changes corresponding to different projections of atmospheric CO2 concentrations. This approach generates large datasets with thousands of simulated crop yield data. Such datasets potentially provide new information but it is difficult to summarize them in a useful way due to their structural complexities. An associated issue is that it is not straightforward to compare crops and to interpolate the results to alternative climate scenarios not initially included in the simulation protocols. Here we demonstrate that statistical models based on random-coefficient regressions are able to emulate ensembles of process-based crop models. An important advantage of the proposed statistical models is that they can interpolate between temperature levels and between CO2 concentration levels, and can thus be used to calculate temperature and [CO2] thresholds leading to yield loss or yield gain, without rerunning the original complex crop models. Our approach is illustrated with three yield datasets simulated by 19 maize models, 26 wheat models, and 13 rice models. Several statistical models are fitted to these datasets, and are then used to analyze the variability of the yield response to [CO2] and temperature. Based on our results, we show that, for wheat, a [CO2] increase is likely to outweigh the negative effect of a temperature increase of +2 degrees C in the considered sites. Compared to wheat, required levels of [CO2] increase are much higher for maize, and intermediate for rice. For all crops, uncertainties in simulating climate change impacts increase more with temperature than with elevated [CO2]. (C) 2015 Elsevier B.V. All rights reserved.
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- 2015
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216. An Analysis of Seasonal Effects on Leaf Nitrate Reductase Activity and Nitrogen Accumulation in Maize (Zea mays L.)
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C. P. Singh and S. Naresh Kumar
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Phenology ,food and beverages ,Sowing ,chemistry.chemical_element ,Plant Science ,Seasonality ,Biology ,medicine.disease ,Nitrate reductase ,Nitrogen ,chemistry ,Agronomy ,medicine ,Poaceae ,Cultivar ,Agronomy and Crop Science ,Hybrid - Abstract
The important enzyme in nitrogen (N) assimilation, nitrate reductase (NR), is an inducible enzyme influenced by many external (light, temperature, etc.) and internal (genotype) factors. The efficiency of the N assimilation system may vary with genotype and season. In the present study, the effects of season on NR activity in relation to N accumulation in maize plants were investigated. Six different cultivars of maize, namely Ganga-11, Deccan-103, Hi-starch (hybrids), Arun, Manjari and Vijay (composites), were sown during the monsoon (88-day crop duration) and in winter (150-day crop duration). In vivo NR activity in the last fully expanded leaf (LFEL), and the N contents of the whole plant and the LFEL were estimated at seven phenological growth stages. Three different states of N metabolism in maize, namely (i) low NR activity per unit leaf area per unit time coinciding with high accumulation of N, (ii) high NR activity coinciding with low N accumulation, and (iii) low NR activity coinciding with low N accumulation, were noted. These results clearly demonstrate that the relationships between N uptake and accumulation parameters change with the season and crop growth stage and are subject to a genotypic influence. Thus it is necessary to evaluate genotypes under similar environments to select a genotype with high N use efficiency. As these relationships are growth dependent, care must be taken to evaluate them at a particular phenological stage rather than on the basis of days after sowing.
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- 2002
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217. Vascular injuries in total knee arthroplasty
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S. Naresh Kumar, J.A. Chapman, and I. Rawlins
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Tourniquet ,medicine.medical_specialty ,business.industry ,medicine.medical_treatment ,Total knee arthroplasty ,Arthritis ,Direct trauma ,medicine.disease ,Arthroplasty ,Thrombosis ,Surgery ,Anesthesia ,medicine ,Acute vascular insufficiency ,Anxiety ,Orthopedics and Sports Medicine ,medicine.symptom ,business - Abstract
Considering the proximity of the major vascular structures to the back of the knee, vascular complications of total knee arthroplasty are relatively rare. A patient who developed acute vascular insufficiency immediately following a total knee arthroplasty is reported. This stimulated a survey of arterial complications encountered by members of the British Association for the Surgery of the Knee. The majority of surgeons still use a tourniquet but will modify their practice if there is anxiety about vascular status. The mechanism of injury to the vascular system is either direct trauma or thrombosis. The outcome following treatment after direct injury is extremely good. The outcome after thrombosis is extremely poor. There is no recorded case of thrombosis occurring when a tourniquet was not used. Whether all knee arthroplasties should be done without a tourniquet is discussed. Early intervention is vital if a vascular injury is suspected.
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- 1998
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218. Framework to reduce cycle time for enchanting productivity in associates
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S. Naresh Kumar, Jose Reddypogu, and P. Ravi Shankar
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Further education ,Knowledge management ,Computer science ,business.industry ,media_common.quotation_subject ,Information technology ,Induction time ,Skill sets ,Cycle time ,Engineering management ,Quality (business) ,business ,Computer aided instruction ,Productivity ,media_common - Abstract
In today's Information Technology (IT) industry, recruitment happens mostly through college campuses. There is a considerable mismatch between project requirements and available skill sets despite training the new associates. Another major challenge is application of knowledge with respect to technology in multiple contexts to effectively deliver quality. Hence, there is need to impart competency or `ability to do' to associates to improve their ability to build quality and be productive. This paper presents a model Samarth Way™ which enables the organization to induct associates into projects with reduced induction time. Authors have piloted this model in a leading IT Company.
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- 2013
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219. Opportunities for Applying Deep Learning Networks to Tumour Classification.
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S., Naresh Kumar, P., Pramod Kumar, Sandeep, C. H., and S., Shwetha
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This paper investigates the opportunities for applying deep learning networks to tumor classification. It finds that basic networks can be found to convey sensible performance, equivalent with mid-run entertainers on the same dataset. Model saturation is a significant issue which can be settled by a combination of limiting the quantity of parameters in the model, include ensuring that training data is adjusted amongst positive and negative perceptions, low learning rates, and iteratively biasing the input data towards cases that the model has mis-arranged after past training epochs. [ABSTRACT FROM AUTHOR]
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- 2018
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220. An Overview of the Factors Affecting Handovers and Effective Highlights of Handover Techniques for Next Generation Wireless Networks.
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P., Pramod Kumar, Sandeep, C. H., and S., Naresh Kumar
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Mobility is the need of the hour computing and communication devices of today are ubiquitous and work in heterogeneous environment. Wordings, for example, Always Best Connected, Seamless Mobility are considered as key highlights of Next Generation Wireless Networks (NGWN). The test for Next Generation Wireless devices is guaranteeing end-to-end availability via consistently relocating between Heterogeneous wireless technologies (viz. Wireless LAN, WiMax, Cellular, UMTS, and LTE and so forth.) This procedure of handover between various wireless technologies alluded to as Vertical Handovers/Handoffs has critical significance among industry and the scholarly world scientists. The prime target of this paper is to give a one-stop literature store on nuts and bolts of Handovers, Classifications, Algorithms, Factors impacting Handovers and alluring highlights of Handover mechanisms for NGWN. [ABSTRACT FROM AUTHOR]
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- 2018
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221. Effect of elevated temperature stress on growth, yield and yield attributes of mungbean (Vigna radiata) in semi-arid north-west India
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S. Naresh Kumar, L Chikukura, S.K. Bandyopadhyay, H. Pathak, and B. Chakrabarti
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Vigna ,Test weight ,Horticulture ,Phenology ,Field experiment ,Radiata ,Kharif crop ,Sowing ,Context (language use) ,General Medicine ,Biology ,biology.organism_classification - Abstract
A field experiment was conducted consecutively during the kharif season of 2014 and 2015 at the New Delhi, India to assess the effects temperature on early and late sown mungbean (Vigna radiata (L.) Wilczek) in rain-fed conditions across natural seasonal temperature gradient and elevated temperatures. Elevated temperatures where imposed on mungbean by use of a polyethylene sheds at specific growth stages. Average ambient temperature differences between normal and late sowing dates was 2–3°C. Elevated temperatures >44/34°C significantly affected PN at all stages. A departure from the normal seasonal temperatures by 8–10°C resulted in shortened phenological stages specifically vegetative phase leading to earlier maturity (50–57 DAS) compared to the control that reached maturity between 70–77 DAS under normal summer seasonal temperature. Increase in temperature negatively reduced number of pods per plant as well as the test weight of mungbean. Protein content in seeds was higher in stressed plants. Yield was sensitive to temperature with a 13.6% decrease in overall yield in 2015 from 2014 correspondingly to a 3°C temperature increase. The least yield was obtained from mungbean stressed at flowering stage in both seasons. Results are discussed in context of climate change and improved mungbean yield production in monsoon season.
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- 2017
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222. Uncertainty in simulating wheat yields under climate change
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J. Hooker, Pramod K. Aggarwal, Joost Wolf, Pierre Martre, Iurii Shcherbak, L. A. Hunt, Kenneth J. Boote, L. Heng, James W. Jones, Jerry L. Hatfield, Katharina Waha, Christian Biernath, Iwan Supit, Eckart Priesack, Pasquale Steduto, S. Naresh Kumar, Davide Cammarano, Joachim Ingwersen, Kurt Christian Kersebaum, Fulu Tao, Christoph Müller, Jordi Doltra, Thilo Streck, Senthold Asseng, Alex C. Ruane, Jeffrey W. White, Roberto C. Izaurralde, Tom M. Osborne, Patrick Bertuzzi, Sebastian Gayler, Andrew J. Challinor, Taru Palosuo, Reimund P. Rötter, Jørgen E. Olesen, Peter J. Thorburn, Nadine Brisson, Mikhail A. Semenov, Claudio O. Stöckle, Maria I. Travasso, Daniel Wallach, James Williams, Garry O'Leary, Cynthia Rosenzweig, Carlos Angulo, Bruno Basso, R. Goldberg, Robert F. Grant, Frank Ewert, Dominique Ripoche, Pierre Stratonovitch, Claas Nendel, Agricultural and Biological Engineering Department, University of Florida [Gainesville], Institut für Nutzpflanzenwissenschaften und Ressourcenschutz (INRES), Rheinische Friedrich-Wilhelms-Universität Bonn, NASA Goddard Institute for Space Studies (GISS), NASA Goddard Space Flight Center (GSFC), National Laboratory for Agriculture and Environment, Department of Agronomy, Ecosystem Sciences, Commonwealth Scientific and Industrial Research Organisation [Canberra] (CSIRO), Plant Production Research, Agrifood Research Finland, Agronomie, AgroParisTech-Institut National de la Recherche Agronomique (INRA), Department of Geological Sciences and W. K. Kellogg Biological Station, Michigan State University [East Lansing], Michigan State University System-Michigan State University System, Génétique Diversité et Ecophysiologie des Céréales (GDEC), Institut National de la Recherche Agronomique (INRA)-Université Blaise Pascal - Clermont-Ferrand 2 (UBP), CCAFS, IWMI, NASC Complex, DPS Marg, UE Agroclim (UE AGROCLIM), Institut National de la Recherche Agronomique (INRA), Institute of Soil Ecology, Helmholtz-Zentrum München (HZM), Institute for Climate and Atmospheric Science [Leeds] (ICAS), School of Earth and Environment [Leeds] (SEE), University of Leeds-University of Leeds, CGIAR-ESSP Program on Climate Change, Agriculture and Food Security, International Center for Tropical Agriculture, Centro de Investigaciòn y Formenta Agrario (CIFA), WESS-Water and Earth System Science Competence Cluster, Eberhard Karls Universität Tübingen, Department of Renewable Resources, University of Alberta, International Atomic Energy Agency [Vienna] (IAEA), Agriculture Department, University of Reading (UOR), Department of Plant Agriculture, University of Guelph, nstitute of Soil Science and Land Evaluation, University of Hohenheim, Joint Global Change Research Institute, University of Maryland [College Park], University of Maryland System-University of Maryland System, Institute of Landscape Systems Analysis, Leibniz-Zentrum für Agrarlandschaftsforschung = Leibniz Centre for Agricultural Landscape Research (ZALF), Potsdam Institute for Climate Impact Research (PIK), Centre for Environment Science and Climate Resilient Agriculture (CESCRA), Indian Agricultural Research Institute (IARI), Landscape and Water Sciences, Department of Primary Industries, Department of Agroecology, Aarhus University [Aarhus], NCAS-Climate, Walker Institute, Computational and Systems Biology Department, Rothamsted Research, Food and Agriculture Organization, Biological Systems Engineering, Washington State University (WSU), Institute of Soil Science and Land Evaluation, Plant Production Systems and Earth System Science-Climate Change, Wageningen University and Research Centre [Wageningen] (WUR), Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences [Beijing] (CAS), Institute for Climate and Water, Instituto Nacional de Tecnología Agropecuaria (INTA), Agrosystèmes Cultivés et Herbagers (ARCHE), Institut National de la Recherche Agronomique (INRA)-Ecole Nationale Supérieure Agronomique de Toulouse-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées, Arid-Land Agricultural Research Center, Texas A&M University System, Department of Agricultural and Biological Engineering [Gainesville] (UF|ABE), Institute of Food and Agricultural Sciences [Gainesville] (UF|IFAS), University of Florida [Gainesville] (UF)-University of Florida [Gainesville] (UF), University of Florida [Gainesville] (UF), Agroclim (AGROCLIM), Eberhard Karls Universität Tübingen = Eberhard Karls University of Tuebingen, Wageningen University and Research [Wageningen] (WUR), Institut National de la Recherche Agronomique (INRA)-École nationale supérieure agronomique de Toulouse [ENSAT]-Institut National Polytechnique (Toulouse) (Toulouse INP), Institut National de la Recherche Agronomique (INRA)-AgroParisTech, Institut für Nutzpflanzenwissenschaften und Ressourcenschutz ( INRES ), University of Bonn (Rheinische Friedrich-Wilhelms), NASA Goddard Institute for Space Studies ( GISS ), NASA Goddard Space Flight Center ( GSFC ), Commonwealth Scientific and Industrial Research Organisation, Institut National de la Recherche Agronomique ( INRA ) -AgroParisTech, Génétique Diversité et Ecophysiologie des Céréales ( GDEC ), Institut National de la Recherche Agronomique ( INRA ) -Université Blaise Pascal - Clermont-Ferrand 2 ( UBP ), UE Agroclim ( UE AGROCLIM ), Institut National de la Recherche Agronomique ( INRA ), Helmholtz-Zentrum München ( HZM ), Institute for Climate and Atmospheric Science [Leeds] ( ICAS ), University of Leeds, Centro de Investigaciòn y Formenta Agrario ( CIFA ), University of Alberta [Edmonton], International Atomic Energy Agency [Vienna] ( IAEA ), University of Reading ( UOR ), Leibniz Centre for Agricultural Landscape Research, Potsdam Institute for Climate Impact Research ( PIK ), Centre for Environment Science and Climate Resilient Agriculture ( CESCRA ), Indian Agricultural Research Institute ( IARI ), Washington State University ( WSU ), Wageningen University and Research Centre [Wageningen] ( WUR ), Chinese Academy of Sciences [Beijing] ( CAS ), Instituto Nacional de Tecnología Agropecuaria, Agrosystèmes Cultivés et Herbagers ( ARCHE ), Institut National Polytechnique [Toulouse] ( INP ) -Institut National de la Recherche Agronomique ( INRA ) -Ecole Nationale Supérieure Agronomique de Toulouse, Texas A and M University ( TAMU ), Helmholtz Zentrum München = German Research Center for Environmental Health, Biotechnology and Biological Sciences Research Council (BBSRC)-Biotechnology and Biological Sciences Research Council (BBSRC), Institute of geographical sciences and natural resources research [CAS] (IGSNRR), Institut National de la Recherche Agronomique (INRA)-École nationale supérieure agronomique de Toulouse (ENSAT), Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National Polytechnique (Toulouse) (Toulouse INP), and Université de Toulouse (UT)-Université de Toulouse (UT)
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010504 meteorology & atmospheric sciences ,[SDV]Life Sciences [q-bio] ,Climate change ,projection ,crop production ,adaptation ,Environmental Science (miscellaneous) ,01 natural sciences ,Greenhouse effect ,Uncertainty analysis ,0105 earth and related environmental sciences ,2. Zero hunger ,model ,[ SDV ] Life Sciences [q-bio] ,food ,Simulation modeling ,ensemble ,temperature ,04 agricultural and veterinary sciences ,15. Life on land ,Transient climate simulation ,scenario ,13. Climate action ,Greenhouse gas ,Climatology ,040103 agronomy & agriculture ,impact ,0401 agriculture, forestry, and fisheries ,Environmental science ,co2 ,Climate model ,Crop simulation model ,Social Sciences (miscellaneous) - Abstract
Projections of climate change impacts on crop yields are inherently uncertain1. Uncertainty is often quantified when projecting future greenhouse gas emissions and their influence on climate2. However, multi-model uncertainty analysis of crop responses to climate change is rare because systematic and objective comparisons among process-based crop simulation models1, 3 are difficult4. Here we present the largest standardized model intercomparison for climate change impacts so far. We found that individual crop models are able to simulate measured wheat grain yields accurately under a range of environments, particularly if the input information is sufficient. However, simulated climate change impacts vary across models owing to differences in model structures and parameter values. A greater proportion of the uncertainty in climate change impact projections was due to variations among crop models than to variations among downscaled general circulation models. Uncertainties in simulated impacts increased with CO2 concentrations and associated warming. These impact uncertainties can be reduced by improving temperature and CO2 relationships in models and better quantified through use of multi-model ensembles. Less uncertainty in describing how climate change may affect agricultural productivity will aid adaptation strategy development andpolicymaking. Projections of climate change impacts on crop yields are inherently uncertain1. Uncertainty is often quantified when projecting future greenhouse gas emissions and their influence on climate2. However, multi-model uncertainty analysis of crop responses to climate change is rare because systematic and objective comparisons among process-based crop simulation models1, 3 are difficult4. Here we present the largest standardized model intercomparison for climate change impacts so far. We found that individual crop models are able to simulate measured wheat grain yields accurately under a range of environments, particularly if the input information is sufficient. However, simulated climate change impacts vary across models owing to differences in model structures and parameter values. A greater proportion of the uncertainty in climate change impact projections was due to variations among crop models than to variations among downscaled general circulation models. Uncertainties in simulated impacts increased with CO2 concentrations and associated warming. These impact uncertainties can be reduced by improving temperature and CO2 relationships in models and better quantified through use of multi-model ensembles. Less uncertainty in describing how climate change may affect agricultural productivity will aid adaptation strategy development and policymaking.
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- 2013
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223. Photo-oxidative stress in coconut seedlings: early events to leaf scorching and seedling death
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Kumar S. Naresh and K.V. Kasturi Bai
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Photoinhibition ,photosynthesis ,biology ,chlorophyll fluorescence ,Plant physiology ,food and beverages ,lipid peroxidation ,Plant Science ,gas exchange ,biology.organism_classification ,Photosynthesis ,proteins ,Chloroplast ,chemistry.chemical_compound ,Horticulture ,chemistry ,Seedling ,Chlorophyll ,Botany ,oxidative stress ,Hydrogen peroxide ,Agronomy and Crop Science ,Chlorophyll fluorescence ,Cocos nucifera - Abstract
Experiments were conducted on coconut seedlings to delineate events of photo-oxidative stress damage. Studies on chlorophyll fluorescence indicated a clear case of excess light energy under high light conditions causing stress to coconut seedlings raised under coconut palms. Quantum yield of photo-chemistry of leaflets exposed to high light was significantly less than those under shade. Seedlings exposed to high light and then shifted to shade have shown significant improvement in quantum yield. Excess light energy harvested by chlorophyll antenna caused high non-photochemical quenching resulting in production of biologically toxic super oxide, hydrogen peroxide and hydroxyl radicals. It is apparent that photoinhibition of photosynthesis takes place due to i) PSII down regulation and ii) damage to PS II system in initial stages of exposure to excess light and under prolonged exposures inhibition is caused due to iii) chlorophyll bleaching and iv) damage to chloroplast and cell membrane integrity, followed by reduction in photosynthetically active leaf area because of scorching thus reducing canopy photosynthesis. Protein concentration in leaf tissue was higher in seedlings in high light conditions. Three distinct low molecular weight proteins with pI of 4.9, 8.4 and 10.15 having Mr less than 20,000 were found in seedlings exposed to high light intensities. Results clearly demonstrate the events that take place at early stage to subsequent cascading effects leading to the scorching and death of leaf and even seedling death under severe conditions.
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- 2009
224. Simulating coconut growth, development and yield with the InfoCrop-coconut model
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K.V. Kasturi Bai, Pramod K. Aggarwal, S. Naresh Kumar, and V. Rajagopal
- Subjects
Cocos ,Crops, Agricultural ,Physiology ,Phenology ,Nitrogen ,Simulation modeling ,Plant Science ,Subtropics ,Flowers ,Models, Biological ,Crop ,Soil ,Nutrient ,Cocos nucifera ,Agronomy ,Dry weight ,Yield (wine) ,Environmental science ,Computer Simulation ,Ecosystem - Abstract
Simulation modeling of perennial crops has immense potential for generating information for plantation managers. We report the development of the InfoCrop-coconut model and its application to coconut (Cocos nucifera L.) growing in diverse tropical and subtropical environments. The model is based on the generic crop model InfoCrop that simulates various annual crops in tropical and subtropical regions. The InfoCrop-coconut model was calibrated and validated with data compiled from published studies comprising many physiological, agronomical and nutritional experiments conducted between 1978 and 2005 in diverse geographic locations throughout India. The treatments included various water and nutrient regimes and varieties of coconut. Time to first flowering varied between 4 and 6 years, leaf production varied from 8 to 15 leaves year(-1) and nut yield ranged from 3000 to 27,000 nuts ha(-1) year(-1). The genetic coefficients used for calibration and validation were generated from field experiments conducted during 1995-2005. Model efficiency and validation performance were analyzed statistically. Simulated trends in phenological development, total dry mass and its partitioning, and nut yield agreed closely with observed values, although a 15% error was observed in a few cases. Considering that field measurements have an experimental error of 10-15% and wide variation existed within treatments, the model adequately simulated the effects of management practices and agro-climatic conditions over short periods. For a range of agro-climatic zones, simulated potential yields varied from 26 to 30 Mg ha(-1) year(-1) and potential annual dry mass production varied from 52 to 62 Mg ha(-1), depending on environment. We conclude that InfoCrop-coconut can be used to increase the efficiency of agronomic experiments designed to aid coconut crop management.
- Published
- 2008
225. Medical philately (medical theme on stamps). Virginia Apgar (1909-1974)
- Author
-
V V S, Naresh and Apgar, Virginia
- Subjects
New Jersey ,Apgar Score ,History, 20th Century ,Philately ,United States - Published
- 2007
226. Response of wheat varieties to heat stress under elevated temperature environments.
- Author
-
SINGH, HAR VIR, KUMAR, S. NARESH, RAMAWAT, NALEENI, and HARIT, R. C.
- Subjects
WHEAT varieties ,PHYSIOLOGICAL effects of heat ,EFFECT of heat on plants ,EFFECT of temperature on plants ,LEAF area index ,PHOTOSYNTHESIS - Abstract
A field experiment was conducted during winter (rabi) season of 2014-15 at IARI, New Delhi to evaluate the response of wheat varieties to heat stress. Three wheat varieties (HD 2967, WR 544 and HD 2985) were grown under ambient and elevated temperature (1.9 to 3.4 °C more than ambient during crop season) condition. Results indicated that the variety WR 544 is highly resistant to heat stress as it exhibited stability of leaf area index (LAI), photosynthesis (Pn), grain yield, harvest index (HI) and test weight under elevated temperature. However, HD 2967 recorded more yield but WR 544 performs better in elevated temperature conditions. [ABSTRACT FROM AUTHOR]
- Published
- 2017
- Full Text
- View/download PDF
227. The melon fruit fly, Bactrocera cucurbitae: A review of its biology and management
- Author
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J. S. Naresh, M. K. Dhillon, Ram Singh, and Hari C. Sharma
- Subjects
Melon fly ,biology ,Snake gourd ,Melon ,Population Dynamics ,Tephritidae ,Bitter gourd ,host range ,Articles ,sterile insect technique ,General Medicine ,biology.organism_classification ,Insect Control ,food.food ,Sterile insect technique ,food ,Agronomy ,Insect Science ,distribution ,Animals ,Bactrocera ,PEST analysis ,insect-transgenesis ,management - Abstract
The melon fruit fly, Bactrocera cucurbitae (Coquillett) (Diptera: Tephritidae) is distributed widely in temperate, tropical, and sub-tropical regions of the world. It has been reported to damage 81 host plants and is a major pest of cucurbitaceous vegetables, particularly the bitter gourd (Momordica charantia), muskmelon (Cucumis melo), snap melon (C. melo var. momordica), and snake gourd (Trichosanthes anguina). The extent of losses vary between 30 to 100%, depending on the cucurbit species and the season. Its abundance increases when the temperatures fall below 32 degrees C, and the relative humidity ranges between 60 to 70%. It prefers to infest young, green, soft-skinned fruits. It inserts the eggs 2 to 4 mm deep in the fruit tissues, and the maggots feed inside the fruit. Pupation occurs in the soil at 0.5 to 15 cm below the soil surface. Keeping in view the importance of the pest and crop, melon fruit fly management could be done using local area management and wide area management. The melon fruit fly can successfully be managed over a local area by bagging fruits, field sanitation, protein baits, cue-lure traps, growing fruit fly-resistant genotypes, augmentation of biocontrol agents, and soft insecticides. The wide area management program involves the coordination of different characteristics of an insect eradication program (including local area options) over an entire area within a defensible perimeter, and subsequently protected against reinvasion by quarantine controls. Although, the sterile insect technique has been successfully used in wide area approaches, this approach needs to use more sophisticated and powerful technologies in eradication programs such as insect transgenesis and geographical information systems, which could be deployed over a wide area. Various other options for the management of fruit fly are also discussed in relation to their bio-efficacy and economics for effective management of this pest.
- Published
- 2005
- Full Text
- View/download PDF
228. Enzyme Activities and Nutrient Status in Coconut (Cocos nuciferaL.) Seedling Rhizosphere Soil after Exposure to Elevated CO2and Temperature
- Author
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Sunoj, V.S. John, primary, Kumar, S. Naresh, additional, Muralikrishna, K.S., additional, and Padmanabhan, Sugatha, additional
- Published
- 2015
- Full Text
- View/download PDF
229. Enzyme Activities and Nutrient Status in Coconut (Cocos nuciferaL.) Seedling Rhizosphere Soil after Exposure to Elevated CO2and Temperature
- Author
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V.S. John Sunoj, S. Naresh Kumar, K.S. Muralikrishna, and Sugatha Padmanabhan
- Subjects
Soil Science ,Agronomy and Crop Science - Published
- 2015
- Full Text
- View/download PDF
230. Posterior dislocation of the shoulder with ipsilateral humeral shaft fracture: a very rare injury
- Author
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T. Muralidharan, J.A. Chapman, and S. Naresh
- Subjects
musculoskeletal diseases ,Male ,Humeral Fractures ,medicine.medical_treatment ,Bone Nails ,Fracture Fixation, Internal ,Arthropathy ,Medicine ,Internal fixation ,Humans ,Humerus ,Fractures, Closed ,General Environmental Science ,Orthodontics ,integumentary system ,business.industry ,Shoulder Dislocation ,Middle Aged ,medicine.disease ,body regions ,Radiography ,medicine.anatomical_structure ,Humeral shaft ,Fracture (geology) ,General Earth and Planetary Sciences ,Upper limb ,Posterior dislocation ,business ,human activities - Abstract
A third case of a posterior dislocation of the shoulder with ipsilateral humeral shaft fracture is described. It is recommended that this dificult management problem requires internal fixation of the humeral shaft fracture to allow control of the shoulder.
- Published
- 1997
231. Human gait recognition using depth camera
- Author
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Kumar, M. S. Naresh, primary and Babu, R. Venkatesh, additional
- Published
- 2012
- Full Text
- View/download PDF
232. Dielectric and Pyroelectric Properties of Ferroelectric SBN-PVDF Composites Prepared by Hot-Uniaxial Press
- Author
-
Kumar, S. Naresh, primary and Kumar, Pawan, additional
- Published
- 2012
- Full Text
- View/download PDF
233. Study of colour blindness in Jat Sikhs
- Author
-
S, Naresh
- Subjects
Adult ,Male ,Aging ,Adolescent ,Incidence ,Vision Tests ,India ,Color Vision Defects ,Middle Aged ,Cohort Studies ,Sex Factors ,Humans ,Female ,Child - Abstract
Of the 1306 male and 791 female Jat Sikhs of Patiala city and the surrounding villages between the age group 10-60 years, 50 males and one female were found to be having colour blindness, showing an incidence of 3.83% and 0.13% respectively. The study was done with the help if Ishihara Charts and Pickford Nicolson's anomaloscope. The type of colour blindness in males in its descending order of occurrence was simple deutranomaly 0.92%, extreme deutranomaly 0.77%, protanopia 0.69%, simple protanomaly 0.61%, deutranopia 0.61%, extreme potanomaly 0.15% and tritanopia 0.08%. The sole colour blind female was simple deutranomaly type. The incidence and type of colour blindness found in males are within the range of other Indian samples. Nevertheless the incidence is much lower than the values reported in other European populations.
- Published
- 1995
234. Variability in Coconut (Cocos nucifera L.) Germplasm and Hybrids for Fatty Acid Profile of Oil
- Author
-
Kumar, S. Naresh, primary
- Published
- 2011
- Full Text
- View/download PDF
235. Angiotensin converting enzyme gene polymorphism in type 2 diabetics with nephropathy
- Author
-
V V S, Naresh, A L K, Reddy, G, Sivaramakrishna, P V G K, Sarma, R V, Vardhan, and V S, Kumar
- Subjects
Nephrology ,Letter to Editor - Published
- 2010
- Full Text
- View/download PDF
236. Stroke in chronic kidney disease
- Author
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S Naresh, P Rama Krishna, Amancharla Yadagiri Lakshmi, Bhuma Vengamma, V Siva Kumar, and G S R Krishna
- Subjects
medicine.medical_specialty ,hypertension ,diabetes ,business.industry ,Cerebral infarction ,Incidence (epidemiology) ,medicine.disease ,stroke ,Nephrology ,Chronic kidney disease ,Diabetes mellitus ,Internal medicine ,Physical therapy ,Medicine ,Original Article ,In patient ,cardiovascular diseases ,business ,Prospective cohort study ,Stroke ,Kidney disease - Abstract
Chronic kidney disease (CKD) is associated with a higher risk for stroke in studies from developed countries. This prospective study was conducted to study the clinical profile, management, and outcome of stroke in patients of chronic kidney disease who had been admitted in our institute during the period from December 2004 to December 2006. A higher incidence of stroke was found in men and in the fifth decade of life. Hypertension and diabetes were found in 88.8 and 48.1% of the patients respectively. CKD was detected for the first time during stroke evaluation in 55.5% of the patients. Stroke was due to cerebral infarction in 48.14% and due to cerebral hemorrhage in 40.7% of the patients. Surgical intervention was needed in 14.8% of all patients while stroke was managed medically in the rest. Over 70% of the patients were discharged after they showed improvement in the symptoms.
- Published
- 2009
- Full Text
- View/download PDF
237. Fragment-based real-time object tracking: A sparse representation approach.
- Author
-
M. S., Naresh Kumar, Parate, Priti, and R., Venkatesh Babu
- Abstract
Real-time object tracking is a critical task in many computer vision applications. Achieving rapid and robust tracking while handling changes in object pose and size, varying illumination and partial occlusion, is a challenging task given the limited amount of computational resources. In this paper we propose a real-time object tracker in l1 framework addressing these issues. In the proposed approach, dictionaries containing templates of overlapping object fragments are created. The candidate fragments are sparsely represented in the dictionary fragment space by solving the l1 regularized least squares problem. The non zero coefficients indicate the relative motion between the target and candidate fragments along with a fidelity measure. The final object motion is obtained by fusing the reliable motion information. The dictionary is updated based on the object likelihood map. The proposed tracking algorithm is tested on various challenging videos and found to outperform earlier approach. [ABSTRACT FROM PUBLISHER]
- Published
- 2012
- Full Text
- View/download PDF
238. An Analysis of Seasonal Effects on Leaf Nitrate Reductase Activity and Nitrogen Accumulation in Maize (Zea mays L.)
- Author
-
Kumar, S. Naresh, primary and Singh, C. P., additional
- Published
- 2002
- Full Text
- View/download PDF
239. Assessment of impact of climate change on potato and potential adaptation gains in the Indo-Gangetic Plains of India.
- Author
-
Kumar, S. Naresh, Govindakrishnan, P. M., Swarooparani, D. N., Ch. Nitin, Surabhi, J., and Aggarwal, P. K.
- Subjects
- *
CLIMATE change , *AGRICULTURAL climatology , *POTATO growing , *POTATO yields , *VEGETATION & climate , *EVAPOTRANSPIRATION - Abstract
India is the second largest producer of potato in the world. The Indo-Gangetic plains (IGP) is the main potato growing region accounting for almost 85% of the 1.8 Mha under the crop in India where it is grown as an irrigated crop during the winter season. Since IGP is in sub-tropical plains, duration of the thermally suitable window is the main determinant limiting yields. Hence the impact of climate change on potato in the IGP was assessed using MIROC HI.3.2 A1b and B1, PRECIS A1b, A2, B2 scenarios and estimated the potential adaptation gains. The potato crop duration in the IGP is projected to decrease due to climate change. The evapotranspiration (ET) is projected to increase while the water use efficiency (WUE) for potato yield is projected to decline in future climates as a consequence of low threshold temperatures for decline in WUE and yield than the ET. Results indicate that the upper threshold for ET decrease is ∼23 °C while that for WUE is 15 °C. The optimal temperatures for tuber yield is ∼17 °C and thus the reduction in WUE in future climates is discernable. Climate change is projected to reduce potato yields by ∼2.5, ∼6 and ∼11% in the IGP region in 2020 (2010-2039), 2050 (2040-2069) and 2080 (2070-2099) time periods. Change in planting time is the single most important adaptation option which may lead to yield gains by ∼6% in 2020 and its combination with improved variety or additional nitrogen may be required to adapt to climate change leading to positive gains by ∼8% in 2020 and by ∼5% even in 2050. However, in 2080 adoption of all the three adaptation strategies may be needed for positive gains. Intra-regional differences in the impact of climate change and adaptation gains are projected; positive impact in northwestern IGP, gains in Central IGP with adaptation and yield loss in eastern IGP even with adaptation. [ABSTRACT FROM AUTHOR]
- Published
- 2015
240. Dielectric and Pyroelectric Properties of Ferroelectric SBN-PVDF Composites Prepared by Hot-Uniaxial Press.
- Author
-
Kumar, S. Naresh and Kumar, Pawan
- Subjects
- *
STRONTIUM barium niobate , *PYROELECTRICITY , *ELECTRIC properties of metals , *FERROELECTRICITY , *FLUORIDES , *COMPOSITE materials , *THICK films , *FLEXIBILITY (Mechanics) - Abstract
Composites of polyvinyledene fluoride ( PVDF) and strontium barium niobate ( Sr x Ba1− x Nb2 O6 for x = 0.53/ SBN)/Ф SBN − (1 − Ф) PVDF with Ф = 0.1 to 0.3 have been prepared by hot uniaxial press. Structural, morphological, dielectric and pyrolectric properties of the composites have been studied. Self-sustaining thick films with a 0-3 connectivity have been synthesized. The dielectric constant (εr) was found to increase with the increase in ceramic volume fraction (Ф) in the composite. The composite with Ф = 0.3 is found to have highest values of pyroelectric coefficient (pi) ~13.475 μC/m2K, FOMI ~0.481 μC/m2K and FOMII ~20.13 μC/m2K with good mechanical flexibility. [ABSTRACT FROM AUTHOR]
- Published
- 2013
- Full Text
- View/download PDF
241. Simulating coconut growth, development and yield with the InfoCrop-coconut model.
- Author
-
Kumar, S. Naresh, Bai, K. V. Kasturi, Rajagopal, V., and Aggarwal, P. K.
- Subjects
- *
COCONUT palm , *TREE growth , *TREE development , *CROP yields , *SIMULATION methods & models , *PLANTATION overseers , *CALIBRATION - Abstract
Simulation modeling of perennial crops has immense potential for generating information for plantation managers. We report the development of the InfoCrop-coconut model and its application to coconut (Cocos nucifera L.) growing in diverse tropical and subtropical environments. The model is based on the generic crop model InfoCrop that simulates various annual crops in tropical and subtropical regions. The InfoCrop-coconut model was calibrated and validated with data compiled from published studies comprising many physiological, agronomical and nutritional experiments conducted between 1978 and 2005 in diverse geographic locations throughout India. The treatments included various water and nutrient regimes and varieties of coconut. Time to first flowering varied between 4 and 6 years, leaf production varied from 8 to 15 leaves year−1 and nut yield ranged from 3000 to 27,000 nuts ha−1 year−1. The genetic coefficients used for calibration and validation were generated from field experiments conducted during 1995–2005. Model efficiency and validation performance were analyzed statistically. Simulated trends in phenological development, total dry mass and its partitioning, and nut yield agreed closely with observed values, although a 15% error was observed in a few cases. Considering that field measurements have an experimental error of 10–15% and wide variation existed within treatments, the model adequately simulated the effects of management practices and agro-climatic conditions over short periods. For a range of agro-climatic zones, simulated potential yields varied from 26 to 30 Mg ha−1 year−1 and potential annual dry mass production varied from 52 to 62 Mg ha−1, depending on environment. We conclude that InfoCrop-coconut can be used to increase the efficiency of agronomic experiments designed to aid coconut crop management. [ABSTRACT FROM AUTHOR]
- Published
- 2008
- Full Text
- View/download PDF
242. Feeding preference of the rice stink bug on annual grasses and sedges
- Author
-
J. S. Naresh and C. M. Smith
- Subjects
Horticulture ,Oryza sativa ,Feeding behavior ,biology ,Insect Science ,Botany ,Host plants ,biology.organism_classification ,Ecology, Evolution, Behavior and Systematics ,Paspalum urvillei - Abstract
Adults of the rice stink bug, Oebalus pugnax (F.), preferred panicles of vasey grass, Paspalum urvillei Steud., over those of 11 species of other grasses and one species of sedge (Cyperus) associated with cultivated rice, Oryza sativa (L.). The number of feeding adults increased approximately 2 times from 1 h post-infestation (PI) to 6 h PI. The number of feeding females was greater than males at 1 h PI but no different at 6 h PI. Both sexes fed significantly (P < 0.05) more on O. sativa panicles than on P. urvillei panicles at 6 h PI. Both sexes also fed significantly (P < 0.05) more on 28 and 21 cm long O. sativa panicles than on 7 cm long panicles, but no such differences existed in feeding among P. urvillei panicles. RESUME Preferences alimentaires d'Oebalus pugnax sur graminees annuelles et cyperacees Les adultes d'Oebalus pugnax F. ont prefere les panicules de Paspalum urvillei Stend a celles de 11 autres Graminees et 1 Cyperacee associees au riz cultive, Oryza sativa L. Le nombre d'adultes s'alimentant a cru environ 2 fois de la lere (1P1) a la 6eme (6P1) heure ayant suivi l'infestation. Le nombre de femelles s'alimentant etait superieur a celui des mâles 1 heure apres (1P1), mais ne presentait pas de difference 6 h apres l'infestation (6P1). Les 2 sexes s'alimentaient significativement plus (P < 0,05) sur les panicules d'O. sativa que sur celles de P. urvillei 6 heures apres l'infestation (6P1). Les 2 sexes se sont alimentes significativement plus (P < 0,05) sur des panicules d'O. sativa de 28 et 21 cm que sur ceux de 7 cm, mais aucune difference n'etait observee dans l'alimentation sur les panicules de P. urvillei.
- Published
- 1984
- Full Text
- View/download PDF
243. Development and Survival of Rice Stink Bugs (Hemiptera: Pentatomidae) Reared on Different Host Plants at Four Temperatures
- Author
-
J. S. Naresh and Charles Michael Smith
- Subjects
Oryza sativa ,Ecology ,biology ,media_common.quotation_subject ,Insect ,Pentatomidae ,Pesticide ,biology.organism_classification ,Sorghum ,Hemiptera ,Agronomy ,Insect Science ,Oebalus pugnax ,Ecology, Evolution, Behavior and Systematics ,Paspalum urvillei ,media_common - Abstract
The suitability of rice, Oryza sativa (L.), sorghum, Sorghum bicolor (L.) Moench, and vasey grass, Paspalum urvillei Stuedel, as host plants of the rice stink bug, Oebalus pugnax (F.), were determined at 21, 24, 27, and 30°C. At 21, 24, and 27°C there were no significant ( P sorghum > vasey grass), but at 21 and 27°C weights of adults from rice and grain sorghum were similar. Nymphal survival was significantly ( P < 0.05) greater on rice and grain sorghum than on vasey grass at each temperature except 21°C, where there was no difference between insect survival on vasey grass and grain sorghum. At 21 and 27°C, development time (egg to adult) was significantly ( P < 0.05) shorter on grain sorghum than on rice or vasey grass, but at 24 and 30°C no differences in developmental time existed. The mean development time from egg to adult on rice, sorghum, and vasey grass at 30°C was 22.9 days, 20.7 days, and 22.3 days, respectively.
- Published
- 1983
- Full Text
- View/download PDF
244. Timoshenko beam formulation for in-plane behaviour of tapered monosymmetric I-beams: Analytical solution and exact stiffness matrix.
- Author
-
Chockalingam, S. Naresh, Pandurangan, V., and Nithyadharan, M.
- Subjects
- *
ANALYTICAL solutions , *AXIAL loads , *SHEARING force , *DIFFERENTIAL equations , *MATRIX functions - Abstract
The presence of curved centroidal axis in tapered monosymmetric I-beams results in coupling between the axial and flexural behaviours. In this paper, an extended Timoshenko beam formulation that incorporates the axial–flexure coupling in the governing differential equations is presented. The proposed formulation is applicable to generic 3D tapered I-beam, with monosymmetric/ bisymmetric cross-section, under in-plane loading. The governing equations are solved analytically and the results are validated with 3D finite element model for a range of tapered I-beams under distributed axial and transverse loadings. Further, the analytical solutions are used to develop an exact 1D tapered beam element (TBE) that can be used within the finite element framework. The main advantage of the proposed approach is that it allows tapered I-beam with monosymmetric section to be modelled as a straight-line segment along its web-centreline. The analytical solutions are also used to develop the exact shape functions for interpolating nodal variables and stress resultants within the element. The proposed beam element is validated by considering a statically indeterminate beam subjected to distributed axial and transverse loads. The displacements, rotations, stress resultants, normal and shear stresses obtained from the proposed beam element show good agreement with 3D FE model. • Extended Timoshenko beam formulation for tapered monosymmetric I-beams. • Differential equations incorporate coupling between axial and flexural behaviours. • Analytical solution is derived for in-plane behaviour under distributed loads. • Exact stiffness matrix and shape functions are developed for a 1D tapered beam element. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
245. An analysis of reinforcement learning interpretation techniques.
- Author
-
Thota, Sravanthi, Nethravathi, R., Kumar, S. Naresh, and Shyamsunder, M.
- Subjects
- *
REINFORCEMENT learning , *DEEP learning - Abstract
Reinforcement Learning (RL) technologies have demonstrated excellent resultsfor a multiple of areas, including such Atari sports, finance & self-driving vehicles. Fortunately, their black-box design complicates its usage, particularly in essential areas like healthcare. Scholars have reported various ways to interpret Reinforcement Learning systems to reduce this issue. A few of these techniques have been used in deep learning, whilst others are specifically developed with RL. This same main purpose of this paper is also to demonstrate and clarify the techniques of Reinforcement Learning interpretation, the measures used to define them, and how certain metrics were being used to consider the internal features of Reinforcement Learning models. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
246. Achieving cross-domain big data de-duplication to maintain effective and confidentiality in the cloud.
- Author
-
Nethravathi, Rippika, Thota, Sravanthi, Kumar, S. Naresh, Yadav, Bonthala Prabhanjan, Swathi, N., and Meena, Ch.
- Subjects
- *
BIG data , *CONFIDENTIAL communications , *CLOUD storage , *DATA quality , *CLOUD computing - Abstract
Data de-duplication would greatly reduce the overhead of cloud computing services for storage and transfer, and it has possible applications in this big data-driven environment. Current systems that de-duplication of data are typically designed either to tackle brute-force threats or increase the accessibility of quality and data, but not all situations. In the context of shortening redundant data disclosure in this publication, we tend to evaluate 3-tier cross-domain architecture, degree program suggest an accurate and confidentiality issues saving big data de-duplication in the cloud, we also tend not to be aware of any current theme that attains authority. Both confidentiality and data de-duplication is accomplished by EPCDD and brute-force attacks are countered. In general, we generally take accountability into evaluation for having greater safeguards of privacy than current schemes. We appear to show that, in terms of computing, interactions and warehousing expenses, EPCDD performs better competitive processes. The dynamic operation user may also perform detailed update, data leakage & restoring through this project. Upon accessing it, the file is sent to the local distributor to verify de-duplication when the document is not reproduced, then the file will be saved on the cloud, and the replica file will obtain evidence of copyright. Authentication process and cross-domain de-duplication of big data in the cloud can be accomplished by this method. In addition, that time complexity of the EPCDD replication search is indexed. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
247. Shear stress distribution in tapered I-beams: Analytical expression and finite element validation.
- Author
-
Chockalingam, S. Naresh, Nithyadharan, M., and Pandurangan, V.
- Subjects
- *
STRESS concentration , *SHEARING force , *ENGINEERING design , *FLANGES - Abstract
Shear stress distribution in tapered I-beams is remarkably different from that of prismatic beams as it is largely influenced by the vertical components of the inclined flange forces. Tapered I-beams can have a linear (or nonlinear) variation of web depths or flange widths or a combination of both, with monosymmetric or bisymmetric cross-sections. Evaluation of shear stress distribution at a section in tapered I-beams is a challenging task, and also closed form expressions have not been reported in literature. Hence, this paper presents a mechanics-based approach to arrive at a closed-form analytical expression for evaluating the shear stress distribution in generic 3D tapered I-beams. The major highlight of the proposed approach is that it accurately predicts the shear stress distribution in I-beams with simultaneously tapering web and flanges. The proposed approach was validated with 3D finite element models for a range of problems, and it was observed that the errors are always less than 4% at sections with L/D ratio greater than 3 and with flange inclination less than 10°. In particular, for the case of bisymmetric web-tapered beams and flange-tapered beams, the errors were less than 1%. Finally, the proposed approach lends itself to an explicit algebraic expression that will be useful for design engineers. • Closed-form analytical expression for shear stress distribution in tapered I-beams. • Generalized approach for 3D beams with simultaneously tapering web and flanges. • Accurate for moderately deep beams with taper angles less than 10°. • Proposed approach provides an explicit algebraic expression, useful for design engineers. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
248. PPDNN-CRP: privacy-preserving deep neural network processing for credit risk prediction in cloud: a homomorphic encryption-based approach
- Author
-
Vankamamidi S. Naresh and Ayyappa D
- Subjects
Credit risk prediction ,Deep neural network ,Homomorphic encryption ,Privacy preserving ,Bank loan prediction ,Cloud computing ,Computer engineering. Computer hardware ,TK7885-7895 ,Electronic computers. Computer science ,QA75.5-76.95 - Abstract
Abstract This study proposes a Privacy-Preserving Deep Neural Network for Credit Risk Prediction (PPDNN-CRP) framework that leverages homomorphic encryption (HE) to ensure data privacy throughout the credit risk prediction process. The PPDNN-CRP framework employs the Paillier homomorphic encryption scheme to secure sensitive loan application data during both the training and inference phases. Implemented using TensorFlow for deep neural network operations and TenSEAL for HE, the framework uses the Kaggle loan dataset to evaluate its performance. The results show that PPDNN-CRP achieved an accuracy of 80.48%, demonstrating competitive performance compared to Privacy-Preserving Logistic Regression (PPLR) at 77.23% and a slight decrease from the non-private DNN-CRP model at 86.18%. The model exhibited strong metrics with a precision of 0.84, recall of 0.91, F1-score of 0.87, and an AUC of 0.74. Security analysis confirms that PPDNN-CRP effectively defends against various privacy attacks, including poisoning, evasion, membership inference, model inversion, and model extraction, through robust encryption techniques and privacy measures. This framework offers a promising approach for achieving high-quality credit risk prediction while maintaining data privacy and complying with legal and ethical standards.
- Published
- 2024
- Full Text
- View/download PDF
249. Family Wealth Transactions. By Jesse Dukeminier, Professor of Law, University of California, Los Angeles and Stanley M. Johanson, Powell Professor of Law, University of Texas. [Boston and Toronto: Little, Brown and Company. 1978. xxxi, 1462 and (Index) 18 pp. $24.00 net.]
- Author
-
S. Naresh
- Subjects
Index (economics) ,Media studies ,Economic history ,Sociology ,Law - Published
- 1980
- Full Text
- View/download PDF
250. Accessing the Required Information from An Applications In Cloud Through SMS
- Author
-
B. Suresh, Jaya Krishna Deva, N. Suganya, O. Pandithurai, and S. Naresh
- Subjects
World Wide Web ,Flexibility (engineering) ,Short Message Service ,Computer science ,Mobile phone ,business.industry ,Concatenated SMS ,SMS banking ,Mobile computing ,The Internet ,Cloud computing ,business - Abstract
On necessity the cloud computing offers a flexibility in offering a function of resources. This proposal introduces to an new era for accessing information in the cloud computing with the help of mobile phone using the SMS (Short message Service). This would provide the facility to use of the system's cumulative resources, discarding the needs to specifically assign hardware to a task. The objective is to achieve connection between cloud and mobile with a null percent help of browsers. Until this moment accessing internet could be achieved only with the help browsers. In this paper, an alternative approach is proposed, in which on requisition by user he/she could receive global data with the help of SMS. The users could receive the requested information at a cost of just a single SMS. Another advantage in this method is that information could be obtained from anywhere even with the help of non browsers supporting mobiles.
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