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排序方式: 共有498条查询结果,搜索用时 15 毫秒
91.
I. S. Chohan I. Singh K. Balakrishnan G. P. Talwar 《International journal of biometeorology》1975,19(3):137-143
Levels of immunoglobulins were determined in persons exposed to high altitude. The individuals studied included high altitude natives, sea level residents at high altitude for 2 years, and recent arrivals at high altitude. Increased IgG and IgA levels were found in high altitude natives and sea level residents at high altitude for 2 years when compared with sea level residents. In recent arrivals marked increase of IgG and IgG levels and slight rise in IgM was seen. Recent arrivals who suffered from high altitude pulmonary oedema showed marked elevation of IgG, IgM, and IgA. Immunoglobulin responses to both primary and secondary TAB inoculation were of a higher magnitude and more sustained at high altitude than at sea level. 相似文献
92.
A temporal study of harpacticoid copepod populations associated with the seagrass Halophila ovalis was undertaken in the Ashtamudi Estuary, south-west coast of India. A total of 19 species representing 8 families was recorded in this assemblage. Harpacticoids formed 7.52% of the total phytal meiofauna. At the species level, harpacticoids exhibit parallel assemblages with phytal zones, found in other localities. 相似文献
93.
M K Rajan A Balakrishnan K Jayaraman 《Journal of biochemical and biophysical methods》1992,25(1):37-43
A simple method for the isolation of denatured fragments of the fibroin protein from cocoon fibres by alkali solubilization is discussed. This 170-kDa antigen has been purified and used to raise the polyclonal antibody in rabbit. The specificity of this antibody to the purified cocoon protein has suggested strong immunoreactivity up to a titre of 1:5000 dilution of the antibody. Further, dot-blot analysis with the tissue extracts from silk glands of different larval stages (3rd to 5th) reveals that this antibody reacts showing a stage-specific increase in the intensity of the colour, correlating well with the in-vivo expression of the silk protein. This study suggests the availability of a specific polyclonal antibody that detects the native fibroin with no crossreactivity with other tissue proteins. 相似文献
94.
95.
Nirjhar Banerjee Rangarajan Sarani Chellamuthu Vasuki Ranjani Govindaraj Sowmiya Daliah Michael Narayanasamy Balakrishnan Kanagaraj Sekar 《Bioinformation》2008,3(1):28-32
Distant repeats in protein sequence play an important role in various aspects of protein analysis. A keen analysis of the distant repeats would enable to establish a firm relation of the
repeats with respect to their function and three-dimensional structure during the evolutionary process. Further, it enlightens the diversity of duplication during the evolution. To this end,
an algorithm has been developed to find all distant repeats in a protein sequence. The scores from Point Accepted Mutation (PAM) matrix has been deployed for the identification of amino acid
substitutions while detecting the distant repeats. Due to the biological importance of distant repeats, the proposed algorithm will be of importance to structural biologists, molecular biologists,
biochemists and researchers involved in phylogenetic and evolutionary studies. 相似文献
96.
BackgroundCerebellar parallel fibres release glutamate at both the synaptic active zone and at extrasynaptic sites—a process known as ectopic release. These sites exhibit different short-term and long-term plasticity, the basis of which is incompletely understood but depends on the efficiency of vesicle release and recycling. To investigate whether release of calcium from internal stores contributes to these differences in plasticity, we tested the effects of the ryanodine receptor agonist caffeine on both synaptic and ectopic transmission.MethodsWhole cell patch clamp recordings from Purkinje neurons and Bergmann glia were carried out in transverse cerebellar slices from juvenile (P16-20) Wistar rats.ConclusionsWe conclude that caffeine increases release probability and inhibits vesicle recovery at parallel fibre synapses, independently of known pharmacological targets. This complex effect would lead to potentiation of transmission at fibres firing at low frequencies, but depression of transmission at high frequency connections. 相似文献
97.
M. Hergersberg Jaya Balakrishnan Thomas Bettecken Francoise Chevalier-Porst Christian Brägger René Burger Inge Einschenk Sabina Liechti-Gallati Michael Morris Daniel Schorderet Francine Thonney Hans Moser Naseem Malik 《Human genetics》1997,100(2):220-223
We have analysed 1173 cystic fibrosis (CF) chromosomes from Switzerland for eight mutations in the CF transmembrane conductance
regulator (CFTR) gene. This permitted the identification of 88.5% of all mutations present. A novel insertion mutation in
exon 20 of the CFTR gene, 3905insT, was discovered. This mutation accounted for 4.8% of CFTR gene mutations in Switzerland
and has since been identified in other populations of probable Swiss descent. It is associated with a highly variable clinical
phenotype but always with pancreatic insufficiency. Haplotype analysis with three intragenic microsatellites in the CFTR gene
showed that the mutation is associated with a haplotype rarely identified on other CFTR alleles and, therefore, that the frequency
of the mutation in Switzerland is explained by a founder effect of a relatively recent mutation event.
Received: 17 February 1997 / Accepted: 26 March 1977 相似文献
98.
99.
To test an assumed mean vector, and to test the equality of two mean vectors, robust statistics are developed which have exactly the same form as the Hotelling T2 statistics. These statistics are shown to have remarkable type I error robustness and power. 相似文献
100.
Joel A. Abbey David Percival Lord Abbey Samuel K. Asiedu Balakrishnan Prithiviraj Annemiek Schilder 《Biocontrol Science and Technology》2019,29(3):207-228
Botrytis cinerea is one of the most destructive pathogens of ve?getables and fruits both in the field and storage. There have been several research activities focused on developing biocontrol strategies for the pathogen due to its resistance to the commonly used synthetic fungicides. Additionally, concerns have been raised over residual effect of current synthetic fungicides used for its control. Most of these research activities have focused on Trichoderma spp., Ulocladium spp., Bacillus subtilis, plant extracts and their essential oils with some commercial products available on the market for the control of B. cinerea disease. This review summarises some of the current published information on the use of biocontrol agents and plant-based compounds for B. cinerea control. Some limitations and future prospects were also mentioned. 相似文献