A. K. Sharma

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Nicotiana tabacum var. Samsun was transformed via Agrobacterium-mediated transformation with a gene encoding the cholera toxin B subunit (CTB) of Vibrio cholerae, modified to contain a sequence coding for an endoplasmic reticulum retention signal (SEKDEL), under the control of the cauliflower mosaic virus 35S promoter. Total protein from the transgenic leaf(More)
Susceptibility studies of malaria vectors Anopheles stephensi Liston (Diptera: Culicidae) and An. subpictus Grassi collected during 2004-2007 from various locations of Arid and Semi-Arid Zone of India were conducted by adulticide bioassay of DDT, malathion, deltamethrin and larvicide bioassay of fenthion, temephos, chlorpyriphos and malathion using(More)
Search engines generally return a large number of pages in response to user queries. To assist the users to navigate in the result list, ranking methods are applied on the search results. Most of the ranking algorithms proposed in the literature are either link or content oriented, which do not consider user usage trends. In this paper, a page ranking(More)
An entomopathogenic fungus, Cordyceps sp. has been known to have numerous pharmacological and therapeutic implications, especially, in terms of human health making it a suitable candidate for ethno-pharmacological use. Main constituent of the extract derived from this fungus comprises a novel bio-metabolite called as Cordycepin (3'deoxyadenosine) which has(More)
Web mining is an active research area in present scenario. Web Mining is defined as the application of data mining techniques on the World Wide Web to find hidden information, This hidden information i. e. knowledge could be contained in content of web pages or in link structure of WWW or in web server logs. Based upon the type of knowledge, web mining is(More)
In this paper, we put forward a technique for parallel crawling of the Web. The World Wide Web today is growing at a phenomenal rate. The size of the Web as on February 2007 stands at around 29 billion pages. One of the most important uses of crawling the Web is for indexing purposes and keeping Web pages up-to-date, later used by search engine to serve the(More)
A large amount of new information is posted on the Web every day. We can take the example of the news portals, which keep on changing not only each and every day but also within each and every hour. Now, which information or data is of how much importance depends upon the perception of the specific user. The Internet and the World Wide Web have enabled a(More)
A highly survivable wideband low noise amplifier (LNA) for front-end receiver electronics is presented utilizing 0.2 mum AlGaN/GaN HEMT process on SiC substrate. This novel amplifier utilizes dual-gate devices with current feedback and drain bias network to attain wideband performance in terms of lower noise and higher gain. Nominal operation at 125 mA/mm(More)
Pistia stratiotes (Family: Araceae) is commonly used in Ayurvedic medicine. This review article is a compilation of all the updated information on its phytochemical and pharmacological activities, which were performed by different methods. Studies indicate that P. stratiotes possesses diuretic, antidiabetic, antidermatophytic, antifungal, and antimicrobial(More)
Contract Net Protocol (CNP) is a means to specify problem-solving communication required in a distributed multi-agent environment. Although, FIPA standardized CNP addresses most of the issues with respect to communication happening among agents in a Multi-Agent Environment (MAE), issues related to establishing trust-worthy communication amongst agents is(More)