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Comparative evaluation of maize inbred lines (zea mays l.) according to dus testing using morphological, physiological and molecular markers

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Agricultural Sciences 2010年第3期1卷 131-142页

作者： Vinod Kumar Yadav indra sen singh 不详

A major challenge facing those involved in the testing of new plant varieties for Distinctness, Uniformity and Stability (DUS) is the need to compare them against all those of 'common knowledge'. A set of maize inbred lines was used to compare how morphological, physiological characterization and RAPD molecular marker described variety relationships. All the inbred lines were confirmed as morphologically and physiologically distinct. At morphological level the maximum genetic distance (10.8) and least genetic distance (1.6) were found. For physiological characters distance varied from 0.35 to 1.92 and results from dendrogram, which was made on the basis of dissimilarity matrix, were grouped into five major clusters. From RAPD, random primers provide polymorphic amplification products;the distance varying 0.42 to 0.65 and dendrogram showed that these lines formed close clusters due to the less variation in these lines at molecular level. In the present study, the molecular markers also exposed useful genetic diversity and the visual displays appeared to disperse the lines somewhat more evenly over the plot than the morphological and physiological methods.

关键词： DUS Inbred Lines Maize Markers Genetic Distance Diversity

Hereditary fructose intolerance: A comprehensive review

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World Journal of Clinical Pediatrics 2022年第4期11卷 321-329页

作者： Sumit Kumar singh Moinak sen Sarma Department of Pediatrics Sri Aurobindo Medical College and PGIIndore 453555Madhya PradeshIndia Department of Pediatric Gastroenterology Sanjay Gandhi Postgraduate Institute of Medical SciencesLucknow 226014India

Hereditary fructose intolerance(HFI)is a rare autosomal recessive inherited disorder that occurs due to the mutation of enzyme aldolase B located on chromosome 9q22.3.A fructose load leads to the rapid accumulation of fructose 1-phosphate and manifests with its downstream *** commonly children are affected with gastrointestinal symptoms,feeding issues,aversion to sweets and *** manifestations include an asymptomatic increase of transaminases,steatohepatitis and rarely liver *** involvement usually occurs in the form of proximal renal tubular acidosis and may lead to chronic renal *** confirmation,a genetic test is favored over the measurement of aldolase B activity in the liver biopsy *** crux of HFI management lies in the absolute avoidance of foods containing fructose,sucrose,and sorbitol(FSS).There are many dilemmas regarding tolerance,dietary restriction and occurrence of *** with HFI who adhere strictly to FSS free diet have an excellent prognosis with a normal *** review attempts to increase awareness and provide a comprehensive review of this rare but treatable disorder.

关键词： Hereditary Fructose Intolerance Children Liver Steatohepatitis Aldolase

Displacement-based seismic design of flat slab-shear wall buildings

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Earthquake Engineering and Engineering Vibration 2016年第2期15卷 209-221页

作者： Subhajit sen Yogendra singh Department of Earthquake Engineering IIT Roorkee

Flat slab system is becoming widely popular for multistory buildings due to its several advantages. However, the performance of flat slab buildings under earthquake loading is unsatisfactory due to their vulnerability to punching shear failure. Several national design codes provide guidelines for designing flat slab system under gravity load only. Nevertheless, flat slab buildings are also being constructed in high seismicity regions. In this paper, performance of flat slab buildings of various heights, designed for gravity load alone according to code, is evaluated under earthquake loading as per ASCE/SEI 41 methodology. Continuity of slab bottom reinforcement through column cage improves the performance of flat slab buildings to some extent, but it is observed that these flat slab systems are not adequate in high seismicity areas and need additional primary lateral load resisting systems such as shear walls. A displacement-based method is proposed to proportion shear walls as primary lateral load resisting elements to ensure satisfactory performance. The methodology is validated using design examples of flat slab buildings with various heights.

关键词： satisfactory continuity vulnerability validated reinforcement gravity walls drift alone details

Study of Crystallization Process in Se80In10Pb10by Iso-Conversional Methods

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Journal of Crystallization Process and Technology 2013年第2期3卷 49-55页

作者： indra sen Ram Kedar singh Department of Physics Faculty of Science Banaras Hindu University Varanasi India Department of Physics Faculty of Science Banaras Hindu University Varanasi India.

The crystallization kinetics of Se80In10Pb10 chalcogenide glass is studied using differential scanning calorimeter (DSC) at different heating rates (5, 10, 15 and 20 K/min) under non-isothermal conditions. Four iso-conversional methods (Kissinger-Akahira-Sunose, Flynn-Wall-Ozawa, Tang and Straink) were used to determine various kinetic parameters: crystallization temperature (Tα), activation energy of crystallization (Eα), Avrami exponent (nα) in non-isothermal mode. The transformation from amorphous to crystalline phase in Se80In10Pb10 is considered as a single step reaction mechanism.

关键词： Iso-Conversional Crystallization Kinetics Activation Energy Avrami Exponent

Rice straw recycling: A sustainable approach for ensuring environmental quality and economic security

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Pedosphere 2023年第1期33卷 34-48页

作者： Anjani KUMAR Amaresh Kumar NAYAK Sandeep SHARMA Ansuman senAPATI Debasis MITRA Bipasa MOHANTY Seenichamy Rathinam PRABHUKARTHIKEYAN Kuttalingam Gopalasubramanian SABARINATHAN indra MANI Rajendra singh GARHWAL Sugitha THANKAPPAN Mahapatra Smruthi SAGARIKA Sergio DE LOS SANTOS-VILLALOBOS Periyasamy PANNEERSELVAM Crop Production Division Indian Council of Agricultural Research(ICAR)-National Rice Research InstituteCuttackOdisha 753006India Department of Soil Science Punjab Agricultural UniversityPunjab 141027India Department of Plant Pathology Agricultural College and Research InstituteTamil Nadu Agricultural UniversityKillikulamTuticorin 628252India Division of Agricultural Engineering ICAR-Indian Agricultural Research InstitutePusaNew Delhi 110012India Collage of Agriculture Chaudhary Charan Singh Haryana Agriculture UniversityHisarHaryana 125004India School of Agriculture and Biosciences Karunya Institute of Technology and SciencesCoimbatoreTamil Nadu 641141India Laboratorio de Biotecnología del Recurso Microbiano Instituto Tecnológico De SonoraSonora 85000México

One of the major challenges in Asian countries is the effective management of rice *** ensure food security for their ever-growing population,Asian countries grow more rice,leading to increasing rice straw *** of rice straw,a common practice,is detrimental to both environmental and human ***,if managed effectively,rice straw has the potential to safeguard the sustainability of agricultural ecosystems and to uplift the economic security of the population depending on rice *** management of rice straw involving minimum soil disturbance along with retention of residues alters the soil carbon cycle through reduced carbon emissions and increased levels of total soil organic *** alternative uses of rice straw,such as production of livestock feed,bioethanol,biochar,biogas,electricity,mushroom,and paper,can add prosperity to rice farmers’life by fetching extra *** is evident that efficient management of rice straw is of enormous economic ***,it is essential to create awareness among the different rice stakeholders of these alternative economic avenues associated with rice *** review is an attempt to provide effective options for sustainable rice straw management and rice straw value chains for harnessing its economic *** further identifies gaps in our understanding of the effects of rice straw on ecological sustainability,particularly concerning the multifaceted connections between the diverse mechanisms of rice agro-ecosystems,which may greatly influence food security in the 21st century.

关键词： microorganism residue management rice straw burning rotation tillage value addition

Novel CMS lines in pigeonpea[Cajanus cajan(L.)Millspaugh]derived from cytoplasmic substitutions,and their effective restoration and deployment in hybrid breeding

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The Crop Journal 2017年第1期5卷 89-94页

作者： Abhishek Bohra Rintu Jha indra Prakash singh Gaurav Pandey Shalini Pareek Partha Sarathi Basu Sushil Kumar Chaturvedi Narendra Pratap singh ICAR Indian Institute of Pulses Research(IIPR)Kanpur 208024India

The availability of stable cytoplasmic male sterile(CMS or A) lines coupled with a robust restoration system(R lines) is an essential prerequisite for efficient hybrid ***-enabled hybrid technology holds immense potential to enhance the long-stagnant productivity of pigeonpea. In the present investigation, cytoplasmic substitutions were made in the nuclear backgrounds of early-maturing pigeonpea varieties or lines. Three new CMS lines(ICPL 88039 A, Pusa 992 A, and DPP 3-2A) resulted from genetic crosses involving cytoplasmic donors from A2(GT 288A) and A4(ICPA 2089) categories. In addition to visual inspection of anthers, pollen-staining techniques and scanning electron microscopy(SEM)analysis were used to confirm pollen sterility. Further, given the relevance of the plant mitochondrial genome to CMS manifestation, 25 mitochondrion-specific DNA markers were assayed on these newly developed A lines and isogenic maintainer(B) lines. DNA polymorphism between Pusa 992 A and Pusa 992 B as revealed by the nad7a_del marker confirmed the successful combination of sterilizing cytoplasm(A4) and nonrestoring nuclear background(Pusa 992). Such cytoplasm-specific DNA markers are required for A2-CMS as well. Further, to assess restoration ability, potential restorers were crossed with these CMS lines, and as a consequence, promising A × R combinations exhibiting 100%pollen fertility could be identified. In parallel, we also analyzed the inheritance patterns underlying fertility restoration using ICPL 88039A-derived F2 and BC1F1populations,and established a monogenic dominant model to explain the phenomenon of A2-CMS restoration. In summary, we report the successful development of new CMS lines and describe their effective deployment in hybrid breeding of pigeonpea.

关键词： Cytoplasm Hybrid Mitochondria Pigeonpea Restorer Sterility

Stimulated Raman Scattering in a Weakly Polar Ⅲ-Ⅴ Semiconductor： Effect of dc Magnetic Field and Free Carrier Concentration

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Chinese Physics Letters 2007年第8期24卷 2245-2248页

作者： M. singh P. Aghamkar P. K. sen Department of Applied Physics Guru Jambheshwar University of Science and Technology Hisar-125001 India Department of Applied Physics S.G.S. Institute of Technology and Science 23-Park Road Indore-452003 India

Using the hydrodynamic model of semiconductor plasmas, we perform an analytical investigation of stimulated Raman scattering （SITS） of an electromagnetic pump wave in a transversely magnetized weakly polar semicon- ductor arising from electron-density perturbations and molecular vibrations of the medium both produced at the longitudinal optical phonon frequency. Assuming that the origin of SItS lies in the third-order susceptibility of the medium, we investigate the growth rate of Stokes mode. The dependence of stimulated Raman gain on the external dc magnetic field strength and free carrier concentration is reported. The possibility of the occurrence of optical phase conjugation via SItS is also studied. The steady-state Raman gain is found to be greatly enhanced by the presence of the strong external dc magnetic field.

关键词： Stimulated Raman Scattering Weakly Polar Semiconductor

Decadal trends in precipitable water vapor over the Indus River Basin using ERA5 reanalysis data

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Journal of Mountain Science 2023年第10期20卷 2928-2945页

作者： Seema RANI Jyotsna singh Subhash singh Purushottam TIWARI Suraj MAL Department of Geography Institute of ScienceBanaras Hindu UniversityUttar Pradesh 221005India Department of Geography Shaheed Bhagat Singh CollegeUniversity of DelhiNew Delhi 110017India Center for the Study of Regional Development Jawaharlal Nehru UniversityNew DelhiDelhi 11oo6zIndia

Precipitable Water Vapor(PWV)constitutes a pivotal parameter within the domains of atmospheric science,and remote sensing due to its profound influence on Earth’s climate dynamics and weather *** exerts a significant impact on atmospheric stability absorption and emission of radiation,thus engendering alterations in the Earth’s radiative *** such,precise quantification of PWV holds the potential to enhance weather prognostication and fortify preparedness against severe meteorological *** study aimed to elucidate the spatial and temporal changes in seasonal and annual PWV across the Indus River Basin and its sub-basins using ERA5 reanalysis *** present study used ERA5 PWV(entire atmospheric column),air temperature at 2 m(t2m)and 500 hPa(T_500hPa),evapotranspiration,and total cloud cover data from 1960 to *** sen slope estimator and Mann-Kendall test were used for trend *** and multiple regression methods were used to understand the association of PWV with other *** findings have unveiled the highest increase in mean PWV during the monsoon(0.40 mm/decade),followed by premonsoon(0.37 mm/decade),post-monsoon(0.27 mm/decade),and winter(0.19 mm/decade)throughout the study ***,the mean PWV exhibited the most pronounced positive trend in the sub-basin Lower Indus(LI),followed by Panjnad(P),Kabul(K),and Upper Indus(UI)across all seasons,except *** PWV has also risen in the Indus basin and its sub-basins over the last six *** exhibits a consistent upward trend up to an elevation of 3500 m within the basin which is most pronounced during the monsoon season,followed by the *** escalating PWV within the basin is reasonably ascribed to increasing air temperatures,augmented evapotranspiration,and heightened cloud *** findings hold potential utility for pertinent authorities engaged in water resource management and planning.

关键词： Himalaya Precipitable Water Vapor Indus River Basin Atmosphere Climate Change ERA5 Reanalysis data

Primary hepatic tuberculosis:A rare but fatal clinical entity if undiagnosed

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Asian Pacific Journal of Tropical Medicine 2012年第6期5卷 498-499页

作者： singh Sneh Jain Promil Aggarwal Garima Dhiman Pratibha singh Sunita sen Rajeev Department of pathology Pt.B.D.Sharma PGIMSRohtak India

Hepatic tuberculosis particularly in the absence of military tuberculosis is *** can occur as a primary case or due to reactivation of an old tubercular *** report case of a 24 year old married female who died of primary hepatic *** had no evidence of tuberculosis *** treatment initiated early can result in marked recovery whereas failure to recognize this entity can prove to be fatal.

关键词： Hepatic tuberculosis Diagnosis Treatment