594 research outputs found

    Gamma-gamma-gamma Angular Correlation Method for the Study of the Cascade 589-296-316 Kev in Pt 192

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    Performance of Medium Access Control Protocol in WBAN for Energy Conservation

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    Wireless Communication and Wireless Networking is the popular research in this era. The combination of this is useful method for one step ahead to increase the life of human being who are part of different lifecycle are senior citizen, teen rage and the youth on this world. The issue is to increase the growth of all this living mankind from different serious diseases so the technology and communication is BAN (Body Area Network) through wireless is Wireless Body Area Network. We do the research on the Data link layer of the stack protocol used in WBAN, so to increase the life of battery having the energy with some constraint because one’s the energy is utilized we cannot extend its energy only by replacing the battery so the main innovation for the research will to create the proposed protocol using existing MAC protocol performance so the total energy used for the data transmission should be minimized to increase the battery life. Transmission of data is in different condition may be in Normal, On-demand and Traffic which leads to consume more energy to overcome this there are different MAC protocol for performance in WBAN like S-MAC, Wise-MAC with IEEE 802.15.6 standard

    An Indian hospital study of viral causes of acute respiratory infection in children

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    From Sept. 1986 to Jan. 1989, a hospital-based study was conducted on 736 children, under 5 years of age, with acute respiratory infection. Nasopharyngeal secretions were examined for viruses by culture and by immunofluorescence. Viruses were detected in 22% of specimens: respiratory syncytial (5%), parainfluenza (5%), influenza A (4%), influenza B (2%), adenovirus (3%), measles (3%). The highest rates of detection were with patients diagnosed clinically as pneumonia or upper respiratory tract infection. The case fatality rate was very high (43%) in children with measles virus infection

    Characterization of Botrytis cinerea isolates from chickpea: DNA polymorphisms, cultural, morphological and virulence characteristics

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    Eight isolates of Botrytis cinerea, causal organism of chickpea from eight different locations of western and eastern Indo-Gangetic Plains (IGP) of India were analyzed for morphological, cultural, virulence and genetic variations. Characterization of virulence and genetic variations of the isolates was based on their pathogenicity against 40 selected chickpea genotypes and randomly amplified polymorphic DNA (RAPD) analysis, respectively. The isolates differed in their optimum growth, temperature, conidial formation and size of conidia on potato dextrose agar. Based on cluster analysis, the eight test isolates were separated into three pathotypes with two isolates from western and four from eastern IGP grouped together with >80% similarity. Based on cluster analysis of the RAPD banding patterns, genetic similarity of the isolates varied from 14-44%, and the isolates were separated into three groups. However, pathotypes variation detected among B. cinerea isolates could not be differentiated based on the RAPD markers examined.Keywords: Botryotinia fuckeliana, Botrytis gray mold, variabilit

    Viral aetiology of acute respiratory infections in children in North India

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    Two hundred and thirty children clinically diagnosed as suffering from acute respiratory infection were tested for four major groups of viral aetiological agents, i.e. influenza para-influenza, respiratory syncytial virus (RSV) and adenoviruses using indirect immunofluorescence technique. At least one of the respiratory viruses was identified in 51 (22 per cent) specimens, which included influenza A in 6 (3 per cent), influenza B in 3 (1 per cent), para-influenza type 1 in 3 (1 per cent), para-influenza type 3 in 13 (6 per cent), RSV in 11 (5 per cent) adenovirus in 12 (5 per cent), and dual virus infections in 3 (1 per cent) cases. Maximum number of virus identification was noted in children below 1 year of age, particularly infection with RSV followed by para-influenza and adenoviruses. Value of rapid diagnosis by indirect immunofluorescence technique is stressed

    Phytophthora blight of Pigeonpea [Cajanus cajan (L.) Millsp.]: An updating review of biology, pathogenicity and disease management

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    Phytophthora blight (PB), Phytophthora drechsleri Tucker f.sp. cajani (Pal et al.) Kannaiyan et al. is reoccurring as an economically important disease of pigeonpea [Cajanus cajan (L.) Millsp.], especially when excessive rains fall with in short span of time and hot and humid weather persists during the crop season. A few years after the initial reviews of Kanniyan et al. (1984), the disease was coming to halt. Despite earlier investigations on pathological and physiological characteristics of P. drechsleri f. sp. cajani, the nature of infection process and genetic basis of pathogen variability have not been clearly established. Therefore, information on the biology and survival of the pathogen is needed to devise effective management strategies. Attempts have been made to develop green-house and field screening techniques three decades ago for identification of HPR. However, only few pigeonpea germplasm and breeding lines belonging to cultivated and wild Cajanus spp. were found tolerant to PB. The recent frequent recurrence of PB epidemics in the major pigeonpea growing areas prioritized the search for higher levels of disease resistance. There is a need to study the biology of the pathogen, epidemiology of the disease and refinement of the resistance screening techniques and develop integrated disease management (IDM) technology for the disease. In this review, the symptomatology of the disease, biology of pathogen including its variability, epidemiology, sources of resistance, other management options, and available information on biochemical and genetic basis of disease resistance have been updated and discussed with the identification of future research priorities

    Genetic Resistance in Desi and Kabuli Chickpea Lines to Fusarium Wilt Caused by Fusarium oxysporum f. sp. ciceris

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    Twenty five lines each of desi and of kabuli chickpea (Cicer arietinum L.) were evaluated for Fusarium wilt resistance during 2008–09 season in the field (wilt sick plot) and greenhouse at the International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, India. Fifteen desi and nine kabuli lines were found resistant (d"10% mortality) to Fusarium wilt. Significant positive correlation was found between greenhouse and field screening techniques (r = > 0.84, P < 0.0001). Additionally, phenological traits and yield were also recorded for all the lines in the disease free field at ICRISAT, Patancheru. Six wilt resistant desi lines (ICCV 09118, ICCV 09113, ICCV 09115, ICCX-030042-F4-P12-BP-BP, ICCX-030037-F4-P9-BP-BP, ICCX-030042-F4-P1-BP-BP) and two kabuli lines (ICCV 09308, ICCV 09314) matured early between 99–107 days and yielded more than the control cultivars JG 11 for desi (2208 kg/ha yield) and JGK 1 for kabuli (2243 kg/ha). These early maturing, high maturng, high yielding and wilt resistant desi and kabuli chickpea lines can be useful sources for breeding wilt resistant varietie

    Alternaria tenuissima Causing Alternaria Blight on Pigeonpea [Cajanus cajan (L.) Millsp.] in India

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    Pigeonpea [Cajanus cajan (L.) Millsp.] is a major grain legume of the tropics and subtropics worldwide. In India, pigeonpea is the third most important food legume after chickpea and field pea. Blight symptoms on pigeonpea were observed in alarming proportion during 2009-2011 crop seasons in Andhra Pradesh state in India. The disease incidence ranged between 20-80% irrespective of cultivars sown. The infected plants in the field showed symptoms on all the aerial parts of the plant (leaves, stems, buds and pods) irrespective of age of the plant and leaves. Symptoms on leaves were small, circular, necrotic spots that develop quickly forming typical concentric rings (Kannaiyan and Nene (1977)..

    Direct entropy determination and application to artificial spin ice

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    From thermodynamic origins, the concept of entropy has expanded to a range of statistical measures of uncertainty, which may still be thermodynamically significant. However, laboratory measurements of entropy continue to rely on direct measurements of heat. New technologies that can map out myriads of microscopic degrees of freedom suggest direct determination of configurational entropy by counting in systems where it is thermodynamically inaccessible, such as granular and colloidal materials, proteins and lithographically fabricated nanometre-scale arrays. Here, we demonstrate a conditional-probability technique to calculate entropy densities of translation-invariant states on lattices using limited configuration data on small clusters, and apply it to arrays of interacting nanometre-scale magnetic islands (artificial spin ice). Models for statistically disordered systems can be assessed by applying the method to relative entropy densities. For artificial spin ice, this analysis shows that nearest-neighbour correlations drive longer-range ones.Comment: 10 page

    New sources of resistance to Fusarium wilt and sterility mosaic disease in a mini-core collection of pigeonpea germplasm

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    Fusarium wilt (FW) and Sterility mosaic disease (SMD) are important biotic constraints to pigeonpea production worldwide. Host plant resistance is the most durable and economical way to manage these diseases. A pigeonpea mini-core collection consisting of 146 germplasm accessions developed from a core collection of 1290 accessions from 53 countries was evaluated to identify sources of resistance to FW and SMD under artificial field epiphytotic conditions during 2007–08 and 2008–09 crop seasons. Resistant sources identified in the field were confirmed in the greenhouse using a root dip screening technique for FW and a leaf stapling technique for SMD. Six accessions (originated from India and Italy were found resistant to FW (<10% mean disease incidence). High level of resistance to SMD was found in 24 accessions (mean incidence <10%). These SMD resistant accessions originated from India, Italy, Kenya, Nepal, Nigeria, Philippines and United Kingdom. Combined resistance to FW and SMD was found in five accessions (ICPs 6739, 8860, 11015, 13304 and 14819). These diverse accessions that are resistant to FW or SMD will be useful to the pigeonpea resistance breeding program
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