Working together to address challenges to the teaching of evolution          下载免费PDF全文

Chow I  Labov JB 《CBE life sciences education》2008,7(3):279-283

  相似文献   

Why laboratory rats are here to stay     

Botham P  Purchase I 《New scientist (1971)》1992,134(1819):29-30

  相似文献   

水稻（Oryza satiraL.）直链淀粉含量的遗传     

库玛  I  尹大德 《农业科技译丛(湖南)》1990,19(1):17-23

  相似文献   

CAS, Thai S＆T ministry to further cooperation     

"Clean Energies Facing the Future  " a cooperative research program jointly organized by CAS  the BP Group  has made encouraging progress  say experts at an annual sum-up workshop held on July  I August at Tsinghua University in Beijing. The CAS Dalian Institute of Chemical Physics 《中国科学院院刊(英文版)》2007,21(4):240-240

"Clean Energies Facing the Future," a cooperative research program jointly organized by CAS and the BP Group, has made encouraging progress, say experts at an annual sum-up workshop held on 31 July and I August at Tsinghua University in Beijing. The CAS Dalian Institute of Chemical Physics(DICP) has been entrusted as coordinator of the cooperative program between the two sides.  相似文献   

Perceptual completion in newborn human infants     

Valenza E  Leo I  Gava L  Simion F 《Child development》2006,77(6):1810-1821

Despite decades of studies of human infants, a still open question concerns the role of visual experience in the development of the ability to perceive complete shapes over partial occlusion. Previous studies show that newborns fail to manifest this ability, either because they lack the visual experience required for perceptual completion or because they fail to detect the pattern of motion. To distinguish these possibilities, newborns' perception of a center-occluded object was tested, using stroboscopic motion. Infants (mean age of 72 hr) perceived the object as a connected unit, providing the first evidence that the newborn is capable of filling in gaps in the visible surface layout when the relevant visual information can be detected by his or her immature visual system.  相似文献   

Immunogenicity of formaldehyde and binary ethylenimine inactivated infectious bursal disease virus in broiler chicks   总被引：2，自引：2，他引：0  

Habib M  Hussain I  Irshad H  Yang ZZ  Shuai JB  Chen N 《Journal of Zhejiang University. Science. B》2006,7(8):660-664

Infectious bursal disease virus （IBDV） was inactivated by two different chemicals-formaldehyde and binary ethylenimine （BEI）. Formaldehyde was used at 0. 1% and 0.2%, while BEI was used at concentrations of 0.001 and 0.002 mol/L. These four vaccines were tested for their efficiency in generating humoral immune response in different groups of broiler chicks. Both BEI-inactivated vaccines gave relatively higher antibody titers and were almost twice as efficient as formaldehyde-inactivated ones.  相似文献   

俄罗斯萨哈(雅库特)共和国中部热喀斯特湖成因及发育规律     

张晓红  Anatoly N.Nikolaev  Alexey I.Kolmogorov  戴长雷 《黑龙江大学工程学报》2021,12(2):1-6

在全球不断变暖的大环境下, 中国冻土区受气候影响而产生的各类结构性变化已经对人类生活产生相应的负面影响, 而位于俄罗斯西伯利亚地区的萨哈(雅库特)共和国面临同样的问题, 热喀斯特湖的发育对研究区内的领土开发、农耕地开垦、畜牧业等均已产生破坏性影响.借鉴俄罗斯对冻土的丰富研究, 为我国相关研究提供思路.通过梳理相关资料,...  相似文献