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288篇 您的检索式:作者名="Nagendra"
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1行业层面实际有效汇率:日本与中国的比较研究显示文摘在分析汇率对特定出口行业价格竞争优势和企业收益影响的经验研究中,分行业实际有效汇率(REER)远比加总至国家层面的实际有效汇率要有用的多。本文的新颖之处在于,测算了以2005年为基年日度的人民币和日元分行业REER,为比较中国和日本各行业的价格竞争优势提供了更好的指标。在模拟分析中,我们分别研究了引起这两种货币分行业REER近期波动的主要因素,例如,国内价格和国外价格。此外,我们还用日度人民币和日元的分行业REER做了协整检验,证实在莱曼兄弟倒闭之后中国和日本的一些产业之间存在着一种长期的稳定关系,这表明亚洲生产链在中国和日本之间不断地深化和发展。佐藤清隆 清水顺子 Nagendra Shrestha 章沙娟 2013世界经济2013,36,5:10
2Trigonelline protects the cardiocyte from hydrogen peroxide induced apoptosis in H9c2 cells显示文摘Objective:To elucidate the key parameters associated with hydrogen peroxide induced oxidative stress and investigates the mechanism of trigonelline(TG)for reducing the H_2O_2induced toxicity in H9c2 cells.Methods:Cytotoxicity and antioxidant activity of TG was assessed by EZ-CYTOX kit.RNA extraction and cDNA synthesized according to the kit manufacture protocol.Apoptosis was measured by the Flowcytometry,general PCR and qPCR.Results:It was found that the TG significantly rescued the morphology of the H9c2 cells.Treatment of cells with TG attenuated H_2O_2 induced cell deaths and improved the antioxidant activity.In addition,TG regulated the apoptotic gene caspase-3,caspase-9 and anti-apoptotic gene Bcl-2.Bcl-XL during H_2O_2 induced oxidative stress in H9c2 cells.These results were comparable with quercetin treatment.For evident,flow cytometer results also confirmed the TG significantly reduced the H_2O_2 induced necrosis and apoptosis in H9c2 cells.However,further increment of TG concentration against H_2O_2 could induce the necrosis and apoptosis along with H_2O_2.Conclusions:It is suggested that less than 125μM of TG could protect the cells from H_2O_2 induced cell damage by down regulating the caspases and up regulating the Bcl-2 and Bcl-XL expression.Therefore,we suggest the trigonelline could be useful for treatment of oxidative stress mediated cardiovascular diseases in future.Soundharrajan Ilavenil Da Hye Kim Young-Il Jeong Mariadhas Valan Arasu Mayakrishnan Vijayakumar Ponnuraj Nagendra Prabhu Srisesharam Srigopalram Ki Choon Choi 2015Asian Pacific Journal of Tropical Medicine2015,8,4:6
3仙茅:对健康有众多益处的黑金(英文)显示文摘仙茅(石蒜科)是一种濒临灭绝的多年生草本植物,是印度本土药,作为强有力的适应原和春药在印度传统药物中占有重要位置。它也是多种印度传统药物处方的重要组成部分,被认为具有促进性欲、刺激免疫、保护肝脏、抗氧化、抗癌和治疗糖尿病等作用。已有报道,从仙茅中提取出多种化学成分,如植物黏胶,酚苷、皂苷和脂肪族化合物等。仙茅也是中医和日本汉方医学中各种草药处方的重要成分。本文对仙茅的多种生物活性和其不同化学成分的作用进行了综述。Nagendra Singh Chauhan Vikas Sharma Mayank Thakur Vinod Kumar Dixit 2010中西医结合学报2010,8,7:6
4公园起作用吗?保护区对土地覆被清理的影响显示文摘本文对来自22个国家49个地点的资料进行了元数据分析,评估了保护区对土地覆被清理的影响。保护区的清理速度明显低于周边地区。而且,从保护伊始,保护区边界内部的清理速度也明显降低。因此,在限制总体土地覆被清理上,保护区显然是有效的。地区间的清理速度有所差异,北美和欧洲大多数保护区的土地覆被变化速度为正,而亚洲保护区的土地覆被清理速度最高。北美和欧洲大多数保护区的参与者相对较少,而亚洲、非洲和拉丁美洲保护区内涉及到的参与者较多,清理的驱动力也较多,说明在这些区域内公园管理所面临的困难增加。相反,国家收入水平和国际自然与自然资源保护联合会的保护分类似乎没有对保护区内土地覆被清理的可能性造成影响。Harini Nagendra 王胜(译) 2008AMBIO-人类环境杂志2008,37,5:5
5寄生草本植物大花菟丝子的研究综述(英文)显示文摘大花菟丝子是一种金黄色、无叶、多年生寄生草本植物,它隶属于旋花科,俗称发菜、鬼肠等。经研究,大花菟丝子具有止痉、抗惊厥、抗类固醇生成、降血压、助肌肉松弛、强心、利尿、抗病毒、抗菌、抗氧化以及助毛发生长等一系列药用作用。目前从大花菟丝子中提取的有效化学成分有岩白菜素、阿马别林、β-谷甾醇、豆甾醇、山奈酚、半乳糖醇、杨梅酮、槲皮素、香豆素和齐墩果酸等。本文概述了生药学和植物化学文献中有关大花菟丝子的研究结果,并从传统医学和生物学角度评价了它的医药用途。Satish Patel Vikas Sharma Nagendra S.Chauhan Vinod K.Dixit 2012中西医结合学报2012,10,3:5
6Enhanced thermoelectric performance in p-type ZrCoSb based half-Heusler alloys employing nanostructuring and compositional modulation显示文摘ZrCoSb based half-Heusler(HH)alloys have been widely studied as a p-type thermoelectric(TE)material for power generation applications in the mid-temperature regime.However,their intrinsically high thermal conductivity has been found to be detrimental for the improvement in their thermoelectric figure-of-merit(ZT),which presently is far below unity.In the current work,a state-of-the-art ZT~1.1 at 873 K was realized in an optimized composition of nanostructured Zr1-xHfxCoSb_(0.9)Sn_(0.1) HH alloys by employing compositional modulation i.e.grain-by-grain compositional variations,which leads to a substantial increase in its power factor coupled with a concurrent decrease in its thermal conductivity.Significant reduction in the phonon mean-free-path is observed on Hf substitution,which is comparable to the average crystallite size(~25 nm),thus leading to a very low thermal conductivity of~2.2Wm^(-1)K^(-1) at 873 K,which is amongst the lowest reported in HH alloys.The TE device characteristics,estimated using cumulative temperature dependence model for quantitative evaluation of TE performance,yielded an output power density of~10 Wcm2 with a leg efficiency of~10%in the optimized composition of nanostructured Zr_(1-x)Hf_(x)CoSb_(0.9)Sn_(0.1) HH alloys,which is comparable to the reported efficiencies of other state-of-the-art TE materials.Nagendra S.Chauhan Sivaiah Bathula Avinash Vishwakarma Ruchi Bhardwaj Kishor Kumar Johari Bhasker Gahtori Ajay Dhar 2019Journal of Materiomics2019,5,1:3
7Plants Used as Antihypertensive显示文摘Hypertension is a critical health problem and worse other cardiovascular diseases.It is mainly of two types:Primary or essential hypertension and Secondary hypertension.Hypertension is the primary possibility feature for coronary heart disease,stroke and renal vascular disease.Herbal medicines have been used for millions of years for the management and treatment of hypertension with minimum side effects.Over aim to write this review is to collect information on the anti-hypertensive effects of natural herbs in animal studies and human involvement as well as to recapitulate the underlying mechanisms,from the bottom of cell culture and ex-vivo tissue data.According to WHO,natural herbs/shrubs are widely used in increasing order to treat almost all the ailments of the human body.Plants are the regular industrial units for the invention of chemical constituents,they used as immunity booster to enhance the natural capacity of the body to fight against different health prob-lems as well as herbal medicines and food products also.Eighty percent population of the world(around 5.6 billion people)consume medicines from natural plants for major health concerns.This review provides a bird’s eye analysis primarily on the traditional utilization,phytochemical constituents and pharmacological values of medicinal herbs used to normalize hypertension i.e.Hibiscus sabdariffa,Allium sativum,Andrographis paniculata,Apium graveolens,Bidenspilosa,Camel-lia sinensis,Coptis chinensis,Coriandrum sativum,Crataegus spp.,Crocus sativus,Cymbopogon citrates,Nigella sativa,Panax ginseng,Salviaemiltiorrhizae,Zingiber officinale,Tribulus terrestris,Rauwolfiaserpentina,Terminalia arjuna etc.Tarawanti Verma Manish Sinha Nitin Bansal Shyam Raj Yadav Kamal Shah Nagendra Singh Chauhan 2021Natural Products and Bioprospecting2021,11,2:2
8南欧派利吞草石油醚提取物对雄性大鼠性行为的影响(英文)显示文摘目的:检测南欧派利吞草石油醚提取物(petroleum ether extract,PEE)对雄性大鼠性行为的影响。方法:制备南欧派利吞草PEE。32只雄性Wistar大鼠分成对照组、睾酮组、低剂量PEE组和高剂量PEE组,每组8只。对照组大鼠灌胃花生油(溶剂对照),睾酮组大鼠肌肉注射0.5mg/kg睾酮,每周2次,低剂量和高剂量PEE组大鼠分别灌胃50和100mg/kgPEE,治疗持续28d。于治疗前,治疗第15天、第28天和治疗后第7天、第15天,检测大鼠体质量,治疗结束后,取4只大鼠性器官(睾丸、附睾、精囊、前列腺)称取质量,其余4只大鼠用于检测大鼠的性取向行为和性功能。结果:与对照组大鼠比较,PEE治疗28d可明显增加雄性大鼠的体质量和性器官质量,雄性大鼠易于接受雌性大鼠和对雌性大鼠趋向性增加,雄性大鼠性能力增加,表现为舔、嗅雌性大鼠肛门和生殖器,阴茎勃起指数增加,交配潜伏期缩短,交配频率增加。在PEE治疗结束后7和15d仍观察到以上行为和性指标的变化。结论:与睾酮不同的是,PEE治疗结束后7和15d仍可见明显治疗效果,提示南欧派利吞草能提高大鼠性潜能,并有延迟效应。Vikas Sharma Mayank Thakur Nagendra S.Chauhan Vinod Kumar Dixit 2010中西医结合学报2010,8,8:2
9Activation of Gpr109a, Receptor for Niacin and the Commensal Metabolite Butyrate, Suppresses Colonic Inflammation and Carcinogenesis显示文摘Nagendra Singh Ashish Gurav Sathish Sivaprakasam Evan Brady Ravi Padia Huidong Shi Muthusamy Thangaraju Puttur D. Prasad Santhakumar Manicassamy David H. Munn Jeffrey R. Lee Stefan Offermanns Vadivel Ganapathy 2014Immunity2014,,1:2
10Utilization of plant-based natural coagulants as future alternatives towards sustainable water clarification显示文摘Rapid industrial developments coupled with surging population growth have complicated issues dealing with water scarcity as the quest for clean and sanitized water intensifies globally. Existing fresh water supplies could be contaminated with organic, inorganic and biological matters that have potential harm to the society. Turbidity in general is a measure of water cloudiness induced by such colloidal and suspended matters and is also one of the major criteria in raw water monitoring to meet the stipulated water quality guidelines.Turbidity reduction is often accomplished using chemical coagulants such as alum. The use of alum is widely associated with potential development of health issues and generation of voluminous sludge. Natural coagulants that are available in abundance can certainly be considered in addressing the drawbacks associated with the use of chemical coagulants.Twenty one types of plant-based natural coagulants categorized as fruit waste and others are identified and presented collectively with their research summary in this review. The barriers and prospects of commercialization of natural coagulants in near future are also discussed.Sook Yan Choy Krishna Murthy Nagendra Prasad Ta Yeong Wu Mavinakere Eshwaraiah Raghunandan Ramakrishnan Nagasundara Ramanan 2014Journal of Environmental Sciences2014,26,11:2
11Using remote sensing to assess biodiversity显示文摘Nagendra H 0,,12:1
12Effectiveness of Ascorbic Acid as an Oxygen Scavenger in Improving Viability of Probiotic Bacteria in Yoghurt Made with Commercial Starter Cultures显示文摘Rajiv I Dave Nagendra P 1997Int Dairy Journal1997,7,:1
13Purification, cloning, and characterization of the CELI nuclease 显示文摘Bing Y Xiao W Nagendra S K 2003Biochemistry2003,39,:1
14Electroosmotic flow behaviour of metal contaminated expansive soil显示文摘Sivapullaiah P V Nagendra Prakash B S 2007Journal of Hazardous Materials2007,143,3:1
153-D Objects from 2-D orthographic views--A survey 显示文摘 Gujar U G 1998Computers and Graphics1998,12,1:1
16A Neural Network Based Automatic G-enemtion Controller Design through Reinforcement Learning 显示文摘Imthias A T P Nagendra R P S Sastry P S 2006International Journal of Emerging Electric Power Systems (S1553-779X)2006,6,1:1
17Drivers of reforestation in human-dominated forests显示文摘Nagendra H 2007PANS2007,104,15:1
18Randomized, Controlled Trial of Yoga in Women With Breast Cancer Undergoing Radiotherapy 显示文摘Chandwani KD Perkins G Nagendra HR 2014J Clin Oncol2014,32,10:1
19A reinforcement learning approach to automatic generation control显示文摘AHAMED T P NAGENDRA P S SASTRY P S 2002Electric Power Systems Research2002,63,1:1
20Effect of grid voltage and frequency variations on the output of wind generators显示文摘 Nagendra Rao P S 2008Electric Power Components and Systems2008,36,6:1
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