维普中文期刊产品整合服务
23篇 您的检索式:作者名="HELGA M"
    题名 作者 年代 出处 被引量
1鸟类交通致死原因的种间行为差异分析(英文)显示文摘鸟类和其他动物经常死于车撞, 每年因车撞而死亡的个体可达数百万只。为什么有的物种比其他物种更易于死于车撞的问题,迄今未研究过。该文推测物种本身所具有的冒险行为可能是这些物种的某些个体更常死于车撞的一个原因。此外,不同物种个体在公路上的行为、个体数量、栖息地偏好、繁殖社会性以及健康状况都可能是影响个体车撞风险的潜在因素。2001—2006 年,对丹麦一个农村地区进行定期统计取样, 得到该地区不同种鸟类个体被车撞死事件发生的频率,以及周边环境中 50 种鸟类的个体数量数据, 并利用这些数据来检验我们的预测。车撞频率随鸟类个体数量线性增加和位于道路上或者低空飞越道路的个体所占比例增加,这两个因素几乎无法解释鸟类车撞频率差异。在考虑到丰富度这个因素后,发现那些鸟类惊飞距离短、面对潜在危险而更具有冒险性的物种个体更易遭遇车撞而亡。另外, 独居的物种、疟原虫感染率高的物种及因体型大而拥有大法氏囊的物种个体死于车撞的频率更高。这些发现表明, 一系列反映冒险行为、视敏度和健康状况的因子导致某些鸟类物种易受到车撞影响。Anders Pape Mller Helga Erritze Johannes Erritze 2011Zoological Research2011,32,2:2
2Perivascular cells expressing annexin A5 define a novel mesenchymal stem cell-like population with the capacity to differentiate into multiple mesenchymal lineages显示文摘Bent B Helga M Friederike P 2005Development2005,132,11:1
3Does tree species composition control soil organic carbon pools in Mediterranean mountain forests? 显示文摘Eugenio D P AgustivL R Helga V M 2011Forest Ecology and Management2011,,262:1
4Influence of fructooligosaccharides on Peyer's patch lymphocyte numbers in healthy and endotoxemic mice显示文摘Nicole M Andreas S Helga B 2003Nutrition2003,19,8:1
5Loss of PTEN expression is associated with metastatic disease in patients with endometrial carcinoma显示文摘Helga B Salvesen M D Ph D 2002Cancer2002,94,15:1
6Genotoxicity of the laxative drug components emodin, aloe-emodin and danthron in mammalian cells: Topoisomerase II mediated?显示文摘Stefan O. Müller Inge Eckert Werner K. Lutz Helga Stopper 1996Mutation Research/Genetic Toxicology1996,,3:1
7Effect of Nat- ural and Synthetic Antioxidants Incorporation on the Gas Per- meation Properties of Poly (lactic acid) films显示文摘CARLA M B G LILIANA C T HELGA G 2013Journal of Food Engineering2013,116,:1
8Anti-ischemic and anti-anginal effects of thoracic epidural anesthesia versus those of conventional medical therapy in the treatment of severe refractory unstable angina pectoris显示文摘KARIN O HELGA M LEON L 1997Circulation1997,96,7:1
9The active pharmaceutical ingredients starting material (APISM) and other materials in API manufacture: scientifically-based principles for the common technical dossier显示文摘HELGA M CHRIS O 1999Drug Inform J1999,33,:1
10Roleofplantb-glucosidases in the Dual Defense System of Irdoid Glycosides and Their Hydrolyzing Enzymes in Plantago Lanceolata and Plantago Major显示文摘HELGA P TORSTEN B CAROLINE M 2013Phyto Chemistry2013,94,:1
11Influence of Iridoid Glycoside Containing Host Plants on Midgut b-glucosidase Activity in a Polyphagous Caterpillar,Spilisoma Viginica Fabricius(Arctiidae)显示文摘HELGA P M DEANE B SUSANNE D 2010Journal of Insect Physiology2010,56,:1
12Constituents of the essential oil of Solidago canadensis ('Goldenrod') from Poland-a correction显示文摘PETER W HELGA M CHRISTIAN C 1993Planta Medica1993,59,:1
13Hemolytic activity of crystalline silica-separated erythrocytes versus whole blood 显示文摘Wolfgang H Barbara M Helga I 2003International Journal Hygiene Environmental Health2003,206,2:1
14Solubilization of poorly soluble lichen metabolites for biological testing on cell lines 显示文摘Kristmundsdottir T Jonsdottir E Helga M 2005European J Pharmaceutical Sci2005,24,5:1
15Aerial survey andspatial analysis of sources of light pollution in Berlin,Germany显示文摘Helga U Kuechly Christopher C M Kyb 2012Remote Sensing of Environment2012,,126:1
16Plasma Homocysteine as a Risk Factor for Vascular Disease显示文摘Ian M Leslie E Helga M 1997JAMA1997,277,22:1
17Antiischemic and anti-anginal effects of thoracic epidural anesthesia versus those of conventional medical therapy in the treatment of severe refractory unstable angina pectoris显示文摘Karin O Helga M Leon L et a1 1997Circulation1997,96,7:1
18Aerial survey and spatial analysis of sources of light pollution in Berlin, Germany 显示文摘Helga u Kuechly Christopher C M kyba Thomas Ruhtz 2012Remote Sensing of Environment2012,126,:1
19A new colorimetric method to quantify β-1,3-1,6-glucans in comparison with total β-1,3-glucans in edible mushrooms显示文摘J?rg Nitschke Hendrik Modick Ekkehard Busch Reimund Wantoch von Rekowski Hans-Josef Altenbach Helga M?lleken 2011Food Chemistry2011,,2:1
20Skeletal measurements among infants who die during the perinatal period显示文摘Ostein E Rolv T Helga M 2002Pediatr Radiol2002,32,9:1
返回顶部 每页显示:
共2页 首页 上一页 第1页 下一页 末页 /2 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费