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5篇 您的检索式:作者名="N. Selvakumar"
    题名 作者 年代 出处 被引量
1Synthesis of silver nanoparticles using Acalypha indica leaf extracts and its antibacterial activity against water borne pathogens显示文摘C. Krishnaraj E.G. Jagan S. Rajasekar P. Selvakumar P.T. Kalaichelvan N. Mohan 2009Colloids and Surfaces B: Biointerfaces2009,,1:4
2Thermal, electrical and wear behavior of sintered Cu–W nanocomposite显示文摘N. Selvakumar S.C. Vettivel 2013Materials and Design2013,,:1
3在印度门诊病人中比较咳嗽2周与3周为痰检筛选标准对提高涂阳结核病例发现的效果显示文摘背景﹕印度六个区的政府卫生机构。目的﹕估算咳嗽的发生率及比较咳嗽≥2周或≥3周的门诊病人涂阳结核病的发现情况。设计﹕由经过培训的卫生人员询问每一病人的咳嗽情况,咳嗽≥2周者进行痰显微镜检查。结果﹕在调查的55561例门诊病人中,咳嗽≥2周者2210例(4%),其中267例为涂阳结核病,而咳嗽≥3周者则为182/1370。31%病人无咳嗽主诉,涂阳可能性显著低于有咳嗽主诉者(各为45/680[7%]、222/1530[15%],P<0.001)。但在267例涂阳病人中占45例。如以咳嗽≥2周为痰显微镜检查筛选标准,估计在初级、二级卫生机构每天进行涂片检查各为8次与19次,如以咳嗽≥3周为标准则各为5次及12次。结论﹕认真询问门诊病人的咳嗽情况以及将咳嗽≥3周改为≥2周作为痰检的筛选标准可以显著提高涂阳结核病人的发现。但在全国实施此改变前需对其进行规划可行性评估。T. Santha R. Garg R. Subramani V. Chandrasekaran N. Selvakumar R. S. Sisodia M. Perumal S. K. Sinna R. J. Singh R. Chavan F. Ali S. K. Sarma K. M. Sharma D. Jagtap T. R. Frieden L Fabio P. R. Narayanan 马玙 2005结核与肺部疾病杂志2005,8,2:0
4葡萄球菌肠毒素A联合PML-RARα多肽刺激特异性T细胞杀伤NB4细胞株的作用(英文)显示文摘Objective:To investigate the effects of staphylococcal enterotoxin A (SEA) on the cytotoxicity of T cells stimulated by PML-RARα peptide in vitro. Methods: Peripheral blood mononuclear cells (MNC) from healthy donor were obtained by density gradient centrifugation on Ficoll-Hypaque,MNC were cultured with PML-RARα peptide and SEA for 20 days. After induction,the cytotoxicity of T cells induced against NB4 and K562 cell lines were examined by Cell Counting Kit-8 (CCK-8). The CD4 and CD8 surface markers on the harvested CD3+ T cells were detected by flow cytometry (FCM). Results: The cyto-toxicity of T cells induced by PML-RARα peptide with SEA was higher than that of T cells induced only by PML-RARα peptide against NB4 cells. The FCM assay showed that the ratio of CD4+/CD8+ T cells were gradually decreased in both groups of PML-RARα peptide whether with SEA or not at the intervals of day 5,10 and 20 day after induction,but the most significantly decreased by PML-RARα peptide with SEA. Conclusion: The specific cytotoxicity of T cells induced by PML-RARα peptide against NB4 cells could be enhanced with superantigen SEA.Chen Lin Xue Bai Lijian Yang Shaohua Chen B. N. Selvakumar Yangqiu Li 2009The Chinese-German Journal of Clinical Oncology2009,8,3:0
5应用痰抗酸杆菌涂片批量抽样对镜检中心进行评价显示文摘地点:进行痰抗酸菌镜检的指定镜检中心(DMC)和其他镜检中心(AMC),地区结核病中心(DTC)和参比实验室(RL)。目的:使用盲法 AFB 痰涂片对不知晓 AFB 镜检质控的结核病实验室高级督导员(STLS)和经过培训知晓质控的参比实验室(RL)的技术员进行结果评估,确定批量抽样痰涂片的可行性。方法:镜检中心(MC)的痰涂片送至地区结核病中心(DTC)和参比实验室;经过系统选择每个镜检中心每月送 20 个涂片;DMC 的 1547 张涂片和 AMC 的 726张涂片分别由DTC的STLS和RL的技术员进行检查,由第三者负责分析差别。结果:和 RL 的 1%相比,MC 实验室技术员和 DTC 的STLSs 之间的不符合率为 4.7%。STLSs 与 RL 实验室技术员各有 70 次和 2 次错误。结论:AFB 涂片的批量抽样在现场情况下是可行的。受过 AFB 涂片镜检质控培训的 RL 技术员对 MC 的评价比没有受过此训练的 STLSs 更有效。N. Selvakumar E. Prabhakaran B. N. Murthy S. Sivagamasundari S. Vasanthan R. Govindaraju M. Perumal F. Wares L. S. Chauhan T. Santha P. R. Narayanan 张宗德 2005结核与肺部疾病杂志2005,8,4:0
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