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您的检索式：作者名="V.Rajkumar"
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| 1 | Therapeutic Potentials of Oroxylum indicum Bark Extracts显示文摘AIM:Diverse therapeutic potentials of methanolic and aqueous extracts of Oroxylum indicum(L.)Vent.bark,includ- ing antioxidant property,cytotoxicity and protection against oxidative DNA damage were investigated in this study.METHODS:Total phenolics in the extracts were determined by spectrophotometric method.Ferric reducing antioxidant property(FRAP),free radical (DPPH·and ·OH)scavenging activities,as well as inhibitory effect on lipid peroxidation have been investigated.Cytotoxicity of the extracts was investigated by XTT assay in MDA-MB-435S and Hep3B cell lines.Protection of DNA by the extracts against oxidative damage by UV-photolysis of H2O2 was studied.RESULTS:Total phenolic content and inhibition of lipid peroxidation in both extracts were found to be dosage-dependent.Moreover,both extracts exhibited considerable free radical scavenging and ferric reducing abili- ties.The extracts demonstrated extensive cytotoxicity in both tested cell lines,with the methanolic extract showing greater cytotoxic potential.Both extracts exhibited moderate levels of DNA protection against oxidative stress.Total phenolic content was noted to have significant positive correlations with free radical scavenging and reducing power,as well as lipid peroxidation inhibition(P<0.05). CONCLUSIONS:These results indicate that O.indicum bark extracts possess diverse biological activities in vitro and could render itself as a prospective candidate for drug research. | R.Ashok Kumar V.Rajkumar Gunjan Guha Lazar Mathew | 2010 | 中国天然药物2010，8，2： | 4 |
| 2 | Secure Data Sharing with Confidentiality,Integrity and Access Control in Cloud Environment显示文摘Cloud storage is an incipient technology in today’s world.Lack of security in cloud environment is one of the primary challenges faced these days.This scenario poses new security issues and it forms the crux of the current work.The current study proposes Secure Interactional Proof System(SIPS)to address this challenge.This methodology has a few key essential components listed herewith to strengthen the security such as authentication,confidentiality,access control,integrity and the group of components such as AVK Scheme(Access List,Verifier and Key Generator).It is challenging for every user to prove their identity to the verifier who maintains the access list.Verification is conducted by following Gulliou-Quisquater protocol which determines the security level of the user in multi-step authentication process.Here,RSA algorithm performs the key generation process while the proposed methodology provides data integrity as well as confidentiality using asymmetric encryption.Various methodological operations such as time consumption have been used as performance evaluators in the proposed SIPS protocol.The proposed solution provides a secure system for firm data sharing in cloud environment with confidentiality,authentication and access control.Stochastic Timed Petri(STPN)Net evaluation tool was used to verify and prove the formal analysis of SIPS methodology.This evidence established the effectiveness of the proposed methodology in secure data sharing in cloud environment. | V.Rajkumar M.Prakash V.Vennila | 2022 | Computer Systems Science & Engineering2022，40，2： | 0 |
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