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Search Results: 1 - 10 of 7970 matches for " Jitender Sharma "
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Analysis of Tahoe: A TCP Variant
Jitender Sharma,Amit Kumar Garg
International Journal of Engineering and Advanced Technology , 2011,
Abstract: Internet has emerged as the basic need of the time. Internet has influenced every part of our life. Shopping, communication, entertainment, business, information, education all aspects of one’s life are available on internet There has been a tremendous increase, almost an exponential rise, in the number of internet users in the recent times, which resulted in the form of congestion problem over the wide area network (WAN). Window size is an important parameter to avoid congestion. The basic idea of this work is to simulate TCP Tahoe using NS2 at different delay times and window size, to find which is best suited window size for this variant, depending on the parameters like bandwidth and delay time.
Hereditary spastic paraplegia with thin corpus callosum
Raina Sujeet,Mokta Jitender,Sharma Sanjiv
Annals of Indian Academy of Neurology , 2009,
Abstract:
INDUSTRIAL APPLICATIONS AND FUTURE PROSPECTS OF MICROBIAL XYLANASES: A REVIEW
Saurabh Sudha Dhiman,Jitender Sharma,Bindu Battan
BioResources , 2008,
Abstract: Microbial enzymes such as xylanases enable new technologies for industrial processes. Xylanases (xylanolytic enzyme) hydrolyze complex polysaccharides like xylan. Research during the past few decades has been dedicated to enhanced production, purification, and characterization of microbial xylanase. But for commercial applications detailed knowledge of regulatory mechanisms governing enzyme production and functioning should be required. Since application of xylanase in the commercial sector is widening, an understanding of its nature and properties for efficient and effective usage becomes crucial. Study of synergistic action of multiple forms and mechanism of action of xylanase makes it possible to use it for bio-bleaching of kraft pulp and for desizing and bio-scouring of fabrics. Results revealed that enzymatic treatment leads to the enhancement in various physical properties of the fabric and paper. This review will be helpful in determining the factors affecting xylanase production and its potential industrial applications in textile, paper, pulp, and other industries.
Changes in Adenosine Metabolism in Asthma. A Study on Adenosine, 5'-NT, Adenosine Deaminase and Its Isoenzyme Levels in Serum, Lymphocytes and Erythrocytes  [PDF]
Jitender Sharma, Bala K. Menon, Vannan K. Vijayan, Surendra K. Bansal
Open Journal of Respiratory Diseases (OJRD) , 2015, DOI: 10.4236/ojrd.2015.52004
Abstract: Background: Adenosine deaminase (ADA) and 5'-nucleotidase (5'-NT) play a crucial role in adenosine metabolism in healthy individuals. Adenosine is an inflammatory mediator of asthma. Changes in adenosine metabolism and role of ADA and 5'-NT in regulating adenosine level in asthmatics and correlation of these changes with severity of asthma are not clearly understood. Methods: In this study, we screened 5217 patients, of which 2416 were diagnosed with asthma. Further, of 2416 asthmatics, only 45 patients who strictly fulfilled the selection criteria were enrolled in the study. The patients were classified into mild, moderate and severe persistent groups; each group consisted of fifteen patients. Fifteen healthy subjects served as controls. Adenosine levels and activities of 5'-NT, total ADA, ADA1 and ADA2 in serum, lymphocytes and erythrocytes were determined. The data were analysed statistically and p < 0.05 was considered significant. Results: In asthma, adenosine levels in serum, lymphocytes and erythrocytes were found to be raised significantly. A significant reciprocal correlation existed between adenosine levels in serum, lymphocytes and erythrocytes of asthmatics and FEV1%. The 5'-nucleotidase activity in serum and lymphocytes was raised in moderate and severe persistent groups and an inverse correlation existed between 5'-nucleotidase activity and FEV1% whereas in erythrocytes it was raised only in severe persistent group and FEV1% had no correlation with the 5'-nucleotidase activity. The activities of total ADA, ADA1 and ADA2 were decreased in serum and lymphocytes of moderate and severe persistent asthmatics and a positive correlation existed between total ADA and FEV1%. In erythrocytes, total ADA activity increased in mild persistent group but remained unchanged in moderate and severe persistent groups. Conclusion: The present study suggests that adenosine levels tend to increase in serum, lymphocytes and erythrocytes with the severity of bronchial asthma. The balance between ADA and 5'-NT determines the levels of adenosine in serum and lymphocytes which may result in pathogenesis of asthma, or vice versa.
Green Approach for In-Situ Growth of CdS Nanorods in Low Band Gap Polymer Network for Hybrid Solar Cell Applications  [PDF]
Ramil K. Bhardwaj, Vishal Bharti, Abhishek Sharma, Dibyajyoti Mohanty, Vikash Agrawal, Nakul Vats, Gauri D. Sharma, Neeraj Chaudhary, Shilpa Jain, Jitender Gaur, Kamalika Banerjee, Suresh Chand
Advances in Nanoparticles (ANP) , 2014, DOI: 10.4236/anp.2014.33015
Abstract:
In-situ growth of CdS nanorods (NRs) has been demonstrated via solvothermal, in a low band gap polymer, poly [[4,8-bis[(2-ethylhexyl)oxy] benzo [1,2-b:4,5-b’] dithiophene-2,6-diyl] [3-fluoro-2-[(2-ethylhexyl) carbonyl] thieno [3,4-b] thiophenediyl]] (PTB7). It is a high yielding, green approach as it removes use of volatile and hazardous chemicals such as pyridine as ligand which are conventionally used to synthesize precursors of CdS (NRs). Moreover the solvothermal process is a zero emission process being a close vessel synthesis and hence no material leaching into the atmosphere during the synthesis. The PTB7:CdS nanocomposite has been characterized by SEM, XRD, FTIR, UV-visible spectroscopy techniques. The photoluminescence (PL) spectroscopy study of PTB7 with CdS NRs has shown significant PL quenching by the incorporation of CdS NRs in PTB7; this shows that CdS NRs are efficient electron acceptors with the PTB7. The PTB7:CdS is used as active layer in the fabrication of hybrid solar cells (HSC) as donor-acceptor combination in the bulk heterojunction (BHJ) geometry. The HSCs fabricated using this active layer without any additional supporting fullerene based electron acceptor has given power conversion efficiency of above 1%.
Growth Inhibition and Apoptosis Induction by (+)-Cyanidan-3-ol in Hepatocellular Carcinoma
Jitender Monga, Saurabh Pandit, Rajinder Singh Chauhan, Chetan Singh Chauhan, Shailender Singh Chauhan, Manu Sharma
PLOS ONE , 2013, DOI: 10.1371/journal.pone.0068710
Abstract: The objective of this study was to evaluate the cytotoxicity of (+)-cyanidan-3-ol (CD-3) in human hepatocellular carcinoma cell line (HepG2) and chemopreventive potential against hepatocellular carcinoma (HCC) in Balb/c mice. The HepG2 cell line was treated with CD-3 at various concentrations and the proliferation of the HepG2 cells was measure by 3-[4,5-dimethylthiazol-2-yl]-2,5-dipheny?l-tetrazoliumbromide (MTT), sulforhodamine B (SRB) and lactate dehydrogenase (LDH) assays. Cell apoptosis was detected by Hoechst 33258 (HO), Acridine orange/ethylene dibromide (AO/EB) staining, DNA fragmentation analysis and the apoptosis rate was detected by flow cytometry. The HCC tumor model was established in mice by injecting N-nitrosodiethylamine/carbon tetrachloride (NDEA/CCl4) and the effect of CD-3 on tumor growth?in-vivo was studied. The levels of liver injury markers, tumor markers, and oxidative stress were measured. The expression levels of apoptosis-related genes in in-vitro and in vivo models were determined by RT-PCR and ELISA. The CD-3 induced cell death was considered to be apoptotic by observing the typical apoptotic morphological changes under fluorescent microscopy and DNA fragmentation analysis. Annexin V/PI assay demonstrated that apoptosis increased with increase in the concentration of CD-3. The expression levels of apoptosis-related genes that belong to bcl-2 and caspase family were increased and AP-1 and NF-κB activities were significantly suppressed by CD-3. Immunohistochemistry data revealed less localization of p53, p65 and c-jun in CD-3 treated tumors as compared to localization in NDEA/CCl4 treated tumors. Taken together, our data demonstrated that CD-3 could significantly inhibit the proliferation of HepG2 cells in-vitro and suppress HCC tumor growth in-vivo by apoptosis induction.
Comprehensive Study of Mobile Networks
JITENDER SINGH
International Journal of Innovative Research in Computer and Communication Engineering , 2013,
Abstract: :In telecommunication a Wireless communication is the transfer of information between two or more points that are not connected by an electrical conductor .Wireless operations permit services, such as long-range communications, that are impossible or impractical to implement with the use of wires. The term is commonly used in the telecommunications industry to refer to telecommunications systems which use some form of energy to transfer information without the use of wires. Information is transferred in this manner over both short and long distances. In this paper we are reviewing different wireless technologies and discussing about the future of wireless technologies used for cellular or mobile networks.
R.K. Narayan : A Typical Craftsman
Jitender kumar
Indian Streams Research Journal , 2012,
Abstract: As we know that R.K. Narayan created an imaginary place Malgudi in his works. And most of the novels and stories take place in this venue. Narayan depicted the Indian society scenario through his works on the land of Malgudi. Narayan's craftsmanship lies not only in the conventional life of Malgudi but also in the leaving attention he devotes to building up a real picture of Malgudi and its inhabitants. Malgudi is his greatest Character with its Mempi Hills, tiger haunted jungles, Natraj Printing shop, Jagan's sweet emporium, Johansian Character's like Mr. Sampath and Natraj. Narayan finds plenty of comedy in the normal life of Malgudi. His attitude towards Malgudi remains lovingly sympathetic. He loves to depict the traditional life of Malgudi with all its backwardness gentle-teasing and deep understanding.
Cost-Benefit Analysis of a Redundant System with Inspection and Priority Subject to Degradation
Jitender Kumar
International Journal of Computer Science Issues , 2011,
Abstract: This paper deals with the cost-benefit analysis of a system of two identical units-one is operative and the other is kept as cold standby. There is a single server who attends the system immediately whenever needed. The unit becomes degraded after repair. The server inspects the degraded unit at its failure to see the feasibility of repair. If the repair of the degraded unit is not feasible, it is replaced by new unit which gets priority in operation as well as in repair over the degraded unit. The system is considered in up-state if either of new/degraded unit is operative. The distributions of failure time of the units are taken as negative exponential while that of inspection and repair times are taken as arbitrary such as exponential distribution, Erlang distribution and Weibull distribution etc. Various reliability measures of system effectiveness are obtained by using semi-Markov process and regenerative point technique. The behavior of mean time to system failure (MTSF), availability and profit of the system have also been studied through graphs.
Insulins Today and Tomorrow
Jitender Singh
JK Science : Journal of Medical Education & Research , 2002,
Abstract: Not available
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