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International Journal of Clinical medicine 2012年第1期3卷 28-30页

作者： Sven Wallerstedt Gudrun erickson Susanna m. Wallerstedt 不详

Purpose, The present article was built on the assumption that the form of an examination may influence learning, and may also reflect different kinds of knowledge. The aim of the study was to evaluate whether the results of an examination differ when short answer questions (SAQ) or modified essay questions (mEQ) are used. method, Forty-nine students in the internal medicine course in Gothenburg, Sweden, performed a written examination in 2003, which included both SAQ and mEQ. Result, The correlation between the results of SAQ and mEQ was 0.59 (P me students had poor results in either SAQ or mEQ. Conclusion, The general outcome of the study indicates that results of SAQ and mEQ demonstrate a significant correlation. However, they may also reflect differences in mastery of the knowledge domain, which should be considered in relation to aspects of

关键词： Evaluation Examination medical School modified Essay Questions Validity

Resveratrol engages selective apoptotic signals in gastric adenocarcinoma cells

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World Journal of Gastroenterology 2006年第35期12卷 5628-5634页

作者： William L Riles Jason erickson Sanjay Nayyar mary Jo Atten Bashar m Attar Oksana Holian Department of medicine Division of Gastroenterology John H. Stroger Hospital of Cook County Chicago IL 60612 United States

AIm： To investigate the intracellular apoptotic signals engaged by resveratrol in three gastric adenocarcinoma cancer cell lines, two of which （AGS and SNU-1） express p53 and one （KATO-m） with deleted p53. mETHODS： Nuclear fragmentation was used to quantitate apoptotic cells; caspase activity was determined by photometric detection of cleaved substrates; formation of oxidized cytochrome C was used to measure cytochrome C activity, and Western blot analysis was used to determine protein expression, RESULTS： Gastric cancer cells, irrespective of their p53 status, responded to resveratrol with fragmentation of DNA and cleavage of nuclear lamins A and B and PARP. Resveratrol, however, has no effect on mitochondria-associated apoptotic proteins Bcl-2, Bcl- xl, Bax, Bid or Smac/Diablo, and did not promote sub-cellular redistribution of cytochrome C, indicating that resveratrol-induced apoptosis of gastric carcinoma cells does not require breakdown of mitochondrial membrane integrity. Resveratrol up-regulated p53 protein in SNU-1 and AGS cells but there was a difference in response of intracellular apoptotic signals between these cell lines. SNU-1 cells responded to resveratrol treatment with down-regulation of survivin, whereas in AGS and KATO- 111 cells resveratrol stimulated caspase 3 and cytochrome C oxidase activities. CONCLUSION： These findings indicate that even within a specific cancer the intracellular apoptotic signals engaged by resveratrol are cell type dependent and suggest that such differences may be related to differentiation or lack of differentiation of these cells.

关键词： Resveratrol Chemoprevention Apoptosis p53 Survivin Cytochrome C oxidase

Associations between cardiorespiratory fitness,physical activity, intraindividual variability in behavior, and cingulate cortex in younger adults

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Journal of Sport and Health Science 2019年第4期8卷 315-324页

作者： Joao Bento-Torres Natali Valim Oliver Bento-Torres Chelsea m.Stillman George A.Grove Jr Haiqing Huang Fatma Uyar Jennifer C.Watt mariegold E.Wollam Kirk I.erickson Institute of Biological Science Federal University of ParaBelemPara 66075-110Brazil College of Physical Therapy and Occupational Therapy Federal University of ParaBelemPara 66075-110Brazil Department of Psychiatry University of Pittsburgh Medical SchoolPittsburghPA 15260USA Department of Psychology University of PittsburghPittsburghPA 15260USA

*** levels of cardiorespiratory fitness(CRF)and greater amounts of physical activity have been associated with lower intraindividual variability(IIV)in executive function in children and older *** the present study,we examined whether CRF,measured as maximal oxygen uptake(VO2max),and daily volume of moderate-to-vigorous intensity physical activity(mVPA)were associated with IIV of reaction time during performance of the incongruent condition of the Stroop task in younger ***,we examined whether the thickness of the cingulate cortex was associated with regulating variability in reaction time performance in the context of CRF or physical ***:CRF(measured as VO2max),accelerometry-measured mVPA,Stroop performance,and thickness of the rostral anterior cingulate cortex(rACC)derived from magnetic resonance imaging data were collected in 48 younger adults(age=24.58±4.95 years,mean±SD).multiple regression was used to test associations between IIV during the Stroop task and CRF,mVPA,and rACC *** was tested using maximum likelihood estimation with ***:Consistent with our predictions,higher VO2max was associated with greater rACC thickness for the right hemisphere and greater daily amounts of mVPA were associated with greater rACC thickness for both the left and right *** thickness of the right rACC was associated with lower IIV for the incongruent condition of the Stroop *** and mVPA were not directly associated with ***,we did find that IIV and both CRF and mVPA were indirectly associated via the thickness of the right ***:These results indicate that higher CRF and greater daily volume of mVPA may be associated with lower IIV during the Stroop task via structural integrity of the *** controlled trials of mVPA would provide crucial information about the causal relations between these variables.

关键词： Accelerometry Aerobic fitness Cognition Executive control Within-person fluctuations

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一种新型的鸡舍

中国畜牧兽医 1984年第3期 8-10页

作者：俞祖泰 m.B.timmons

在工业发达的国家,工厂化养鸡业的发展,一般都经历了这样两个阶段:半开放式禽舍自然通风及机械通风控制环境;密闭式禽舍完全机械通风控制环境。密闭式饲养,无论是饲料转化率或日增重,都比半开放饲养的高。根据Baughman、Hughes 等人197... 详细信息

在工业发达的国家,工厂化养鸡业的发展,一般都经历了这样两个阶段:半开放式禽舍自然通风及机械通风控制环境;密闭式禽舍完全机械通风控制环境。密闭式饲养,无论是饲料转化率或日增重,都比半开放饲养的高。根据Baughman、Hughes 等人1977年和1979年的试验报告,在隔热良好、完全机械通风的鸡舍和常见的前墙用帘的半开放式鸡舍相比,结果前者饲料转化率要高0.12公斤/公斤饲料,饲养

关键词：鸡舍密闭式孔道畜禽舍仔鸡自然通风

Sustainable Land management: Growing miscanthus in Soils Contaminated with Heavy metals

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Journal of Environmental Protection 2014年第8期5卷 723-730页

作者： Valentina Pidlisnyuk Larry erickson Sergiy Kharchenko Tetyana Stefanovska Department of Chemical Engineering Kansas State University Manhattan USA Department of the Environment Faculty of Natural Resources Matej Bel University Banska Bystrica Slovakia Faculty of Chemical Engineering and Technology University of Zagreb Zagreb Croatia Faculty of Plant Protection National University of Life and the Environment Kyiv Ukraine

miscanthus grows well in some marginal and contaminated soils, and it has the potential to be used as a biofuel. Copper and cobalt are heavy metals that sometimes are present as contaminants in soils at concentrations that may impact the safety of products that are harvested. Laboratory research has been conducted with miscanthus sacchariflorus m. to investigate metal uptake of copper and cobalt because metal concentrations in the harvested parts of miscanthus are important for biofuel applications. The results show that the use of miscanthus for biofuel from soil contaminated by heavy metals depends mainly on the nature of contaminated metals: cobalt was detected only for highest treated concentration of metal and mainly in the roots. The highest concentration of copper was detected in the roots however this metal was detected in stems and leaves of miscanthus as well. miscanthus biomass harvested from cobalt contaminated soil may be used for energy production because the harvested part accumulated only limited traces of the metal. The experimental results are in reasonable agreement with other results from the literature.

关键词： Phytoremediation miscanthus Biomass Heavy metals Cobalt Copper

Kinectin Interaction with Kinesin and Cytoplasmic Dynein

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Kinectin Interaction with Kinesin and Cytoplasmic Dynein

Third Congress of the Asian-Pacific Organization for Cell Biology

作者： Kumar,J. Lindesmith,L. DeSerrano,V. erickson,H. Sheetz,m. Department of Cell Biology Duke University Medial CenterDurhamNC 27710

The microtubule-dependent transport of membranous vesicles involves the regulated attachment of motors to the vesicle surface. Studies of alterations in the levels of vesicle transport indicate that both kinesin and c...

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高稳定性程序控制固态脉冲激光电源

激光与红外 1972年第1期 32-34页

作者： erickson,L.E Spencer,C.m 太原工学院

本文叙述应用于红宝石激光器的一种高稳定性固态电源。在运转范围高达3000伏时,电源电压可以调节稳定至小于±1伏。电源采用程序控制,以供激光自动运转。

关键词：电源高稳定性充电电流激光头

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评论:临床记忆测验

心理科学进展 1983年第4期 23-30页

作者： R. C. erickson m. L. Scott 梁宝勇美国华盛顿大学美国华盛顿大学

从最广泛的意义上说,记忆是一种复杂的高级过程,它包括信息的搜集、贮存和提取。记忆功能的缺陷是器质性和功能性精神障碍的一种常见的伴随症状,无论从诊断,还是从康复的观点看都是临床家所关心的。记忆功能的粗略估计是每个精神状态检... 详细信息

从最广泛的意义上说,记忆是一种复杂的高级过程,它包括信息的搜集、贮存和提取。记忆功能的缺陷是器质性和功能性精神障碍的一种常见的伴随症状,无论从诊断,还是从康复的观点看都是临床家所关心的。记忆功能的粗略估计是每个精神状态检查的一部份。精神状态检查可对心理功能的一些方面作出经济的筛选,但它可以提出,也可以不提出合适的资料。整个的心理测量

关键词：记忆测验 WmS mFD 智力测验智力测试心理测验分测验数字广度记忆缺损成套测验脑损害脑病病人器质性病智力量表心理量表视觉记忆 WAIS 记忆损害非言语

在K/T界线的全球微量元素生物地球化学——对假想的陨石碰撞的海洋和生物的响应

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宝石和宝石学杂志(中英文) 1989年第2期 55-58页

作者： David J.ericksonⅢ Stephen m.Dickson 汪东波

对于与假想的一直径10km的C1球粒陨石有关海洋的微量元素通量计算表明,陨星中包含的某些元素的质量,如Fe,Co,mn,Al,Zn,Ni,Ge,Cr,Sn,Cd,Pb,Ag,Cu,Hg和Se,相当于或大于世界海洋的储量.所以,在一个大的陨石碰撞后。以大气雾微粒形式的陨石... 详细信息

对于与假想的一直径10km的C1球粒陨石有关海洋的微量元素通量计算表明,陨星中包含的某些元素的质量,如Fe,Co,mn,Al,Zn,Ni,Ge,Cr,Sn,Cd,Pb,Ag,Cu,Hg和Se,相当于或大于世界海洋的储量.所以,在一个大的陨石碰撞后。以大气雾微粒形式的陨石元素进入到表层海洋,同时各种特定元素的溶解性能,能迅速改变一些海洋微量元素的地球化学平衡.我们确信这种假想的微量元素涌入量足以扰乱66.4ma前,即陨石可能的碰撞时间的生物地球化学循环、通过直接暴露和生物堆积,这些陨石元素将对海洋食物链的很多营养水平产生不利的影响。这些生存于表层海洋的生物将暴露在有毒元素的长期高浓度下。当海洋中微量元素含量较高时,由于不同种属对高含量的微量元素忍耐程度不同,就可能发生选择性的灭绝。K/T界线处与火山作用有联系的微量元素雾的通量对世界海洋的微量元素高含量也作出了贡献。微量元素中毒说推测这一机制在中生代末海洋生物选择性灭绝的事件中起了作用。

关键词：陨石天空石 K/T 微量元素痕量元素界线