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102篇 您的检索式:作者名="Sachdev K"
    题名 作者 年代 出处 被引量
1血管性认知障碍的诊断标准:国际血管性行为与认知障碍学会的申明显示文摘长期以来,脑血管病(CVD)就被认为是认知损害的一个重要原因,但是有关脑血管病后认知障碍的概念化却有着一段多变的历史。'动脉变硬'或脑的动脉粥样硬化是'老化'的原因,是存在已久的观点,在20世纪60年代受到了来自英格兰纽卡斯尔的神经病理学研究的质疑。这些研究表明,血管性痴呆(vascular dementia,Va D)与超过一定程度的多发性脑梗死有关。徐岩 郭起浩 Sachdev P Kalaria R O'Brien J Skoog I Alladi S Black SE Blacker D Blazer DG Chen C Chui H Ganguli M Jellinger K Jeste DV Pasquier F Paulsen J Prins N Rockwood K Roman G Scheltens P 2014神经病学与神经康复学杂志2014,11,3:19
2钛铝中〈011]超位错的非对称形核及运动的分子动力学模拟显示文摘钛铝金属间化合物具有优异的高温性能,但室温脆性限制了其广泛应用.为探寻脆性的解决办法,需在原子尺度上理解其变形机理.作为位错与孪晶机制系统研究的一部分,本文采用分子动力学及静力学方法模拟了钛铝011]超位错的形核与运动.研究发现,与普通无序合金不同,有序的钛铝金属间化合物中沿正反[011]方向剪切时,超位错表现出非对称行为.分析表明,这种差异源自与面心立方结构相比钛铝的L10有序化使晶格对称性降低,导致沿相反方向剪切时呈现不同的屈服应力、应变、位错芯的分解及位错运动规律.沿[011]剪切变形时,晶体中4根偏位错在同一滑移面上相继形核,构成同心椭圆形超位错环.超位错芯由4根肖克莱偏位错及将其隔开的3种广义层错组成.超位错环扩张过程中其分解方式依赖于其在环上的部位(位错取向)及剪切方向.刃取向及附近的超位错呈4重分解,60°附近逐渐转变为3重分解,最后在30°附近变成2重分解.超位错开动可具有不同的临界剪切应力,与启动时的分解方式及剪切方向有关,当SISF领先时其临界应力较低.徐东生 王皞 杨锐 SACHDEV Anil K 2013科学通报2013,58,35:2
3High(15 Hz)and low(1 Hz) frequency transcranial magnetic stimulation have different acute ef- fects on regional cerebral blood flow in depressed patients显示文摘Loo C K Sachdev P S Haindl W 2003Psy chol Med2003,33,99:1
4Diagnosis of ventilator-associat-ed pneumonia in children in resource-limited setting:a comparative study of bronchoscopic and nonbronchoscopic methods 显示文摘Sachdev A Chugh K Sethi M 2010Pediatr Crit Care Med2010,11,2:1
5Influence of (10-12) extension twinning on the flow behavior of AZ31 Mg alloy 显示文摘JIANG L JONAS J J LUO A A SACHDEV A K GODET S 2007Materials Science and Engineering A2007,,:1
6Texture and mechanical behavior evolution of age-hardenable Mg-Nd-Zn extrusions during aging treatment显示文摘LAN M A MISHRA R K PENG L M LUO A A DING Wen-jiang SACHDEV A K 2011Mater Sci EngA2011,529,:1
7Reproductive health and child heahh and nutrition in India:meeting the challenge 显示文摘Paul V K Sachdev H S Mavalankar D 2011The Lancet2011,377,9762:1
8Twinning-induced softening in polycrystalline AM30 Mg alloy at moderate temperatures 显示文摘JIANG L JONAS J J LUO A A SACHDEV A K GODET S 2006Scripta Materialia2006,54,:1
9Field-activa- ted sintering of blended elemental '/-TiAI powder compacts: po- rosity analysis and growth kinetics of A13 Ti显示文摘KULKARNI K N SUN Y SACHDEV A K 2013Scripta Materia- lia2013,68,11:1
10Pre2dictors of nonsentinel lymph node metastasis inbreast cancer patinents显示文摘Sachdev U Murphy K Derzie A 2002J Surg2002,183,2:1
11A Second Order Load Flow Technique显示文摘SACHDEV M S MEDICHERLA T K P IEEE Transactions on Power Appa- ratus and Systems0,96,1:1
12Wrought Magnesium Research forAutomotive Applications 显示文摘Luo A A Sachdev A K 2006Magnesium Technology2006,7,9:1
13Effect of oral glutamine supplementation on gut permeability and endotoxemia in patients with severe acute pancreatitis:a randomized controlled trial显示文摘SINGH N MISHRA S K SACHDEV V 2014Pancreas2014,43,6:1
14Isolation and identification of oviposition deterrents to cabbage butterfly,Pieris rapae from Erysimum cheiranthoides 显示文摘SACHDEV G K RENWICK J A A RADKE C D 1990Journal of Chemical Ecology1990,16,4:1
15Aliarin,a new flavonoid from Dodonaea viscosa Linn显示文摘Sachdev K Kulshreshtha D K 1982Indian Journal of Chemistry Section B:Organic Chemistry Including Medicinal Chemistry1982,21,8:1
16Flavonoids from Dodonaea viscosa显示文摘Sachdev K Kulshreshtha D K 1983Phytochemistry1983,22,5:1
17Influence of { 1012 } extension twinning on the flow behavior of AZ31 Mg alloy 显示文摘JIANG L JONAS J LUO A A SACHDEV A K GODET S 2007Materials Science and Engineering A2007,,:1
18Twinning mad texture development in two Mg alloys subjected to loading along three different strain paths 显示文摘JIANG L JONAS J J MISHRA R K LUO A A SACHDEV A K GODET S 2007Acta Materialia2007,55,:1
19Diagnosis of bacterial ventilator- associated pneumonia in children: reproducibility of blind bronchial sampling显示文摘Sachdev A Chugh K Raghunathan V 2013Pediatr Grit Care Med2013,14,1:1
20Right versus left prefrontal transcranial magnetic stimulation for obsessive - compulsive disorder: A preliminary investigation 显示文摘Sachdev P S McBride R Loo C K 2001J Clin Psychiatry2001,62,:1
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