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- 저자 : Jigar H. Shah (검색결과 2 건)
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Brajesh C. Varshney,N.M. Ponnanna,Pranati A. Sarkar,Pragna Rehman,Jigar H. Shah 대한수의학회 2007 JOURNAL OF VETERINARY SCIENCE Vol.8 No.1
Escherichia coli (E. coli) strains were collected from young diarrheic calves in farms and field. Strains that expressed the K99 (F5) antigen were identified by agglutination tests using reference antibodies to K99 antigen and electron microscopy. The K99 antigen from a selected field strain (SAR-14) was heat-extracted and fractionated on a Sepharose CL-4B column. Further purification was carried out by sodium deoxycholate treatment and/or ion-exchange chromatography. Monoclonal antibodies to purified K99 antigen were produced by the hybridoma technique, and a specific clone, NEK99-5.6.12, was selected for propagation in tissue culture. The antibodies, thus obtained, were affinity-purified, characterized and coated onto Giemsastained Cowan-I strain of Staphylococcus aureus (S. aureus). The antibody-coated S. aureus were used in a coagglutination test to detect K99+ E. coli isolated from feces of diarrheic calves. The specificity of the test was validated against reference monoclonal antibodies used in co-agglutination tests, as well as in ELISA. Specificity of the monoclonal antibodies was also tested against various Gram negative bacteria. The developed antibodies specifically detected purified K99 antigen in immunoblots, as well as K99+ E. coli in ELISA and co-agglutination tests. The co-agglutination test was specific and convenient for large-scale screening of K99+ E. coli isolates.
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S.M. Yadav,N. P. Singh,Kalpana A. Shah,Jigar H. Gamit 대한토목학회 2014 KSCE Journal of Civil Engineering Vol.18 No.7
Unplanned and rapid growth of urban areas of developing countries poses major threat to service providers. Water supply management becomes critical aspect in the above scenario. The onus of managing its supply and distribution rests on the local government of the concerned area. Ahmedabad being world’s third largest and India’s fastest growing city has been selected for analysis of water supply services. Performance evaluation of water supply services for Ahmedabad city was carried out using nine performance indicators suggested by Ministry of Urban Development (MOUD), Government of India. The nine performance indicators as suggested by MOUD are: coverage of water supply connection, per capita supply of water, extent of metering of water connections, extent of non revenue water, continuity of water supply, quality of water supplied, efficiency in redressal of customer complaints, cost recovery of water supply services and efficiency in collection of water supplied related charges. Required data was collected from Ahmedabad Municipal Corporation. Analysis of the data suggests that among all the indicators of supply of water, cost recovery in water supply services, efficiency in redressal of customer complaints, quality of water supplied and efficiency in collection of water supply related charges showed good performance. However, metering of connection, continuity of water supply and non revenue water needs planned efforts to bring them up to the benchmark.
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