共查询到20条相似文献,搜索用时 15 毫秒
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Marc Lacroix 《法国昆虫学会纪事》2013,49(3):355-365
La synonymie entre Perrindema Lacroix 1997, et Zanitanus Lacroix 2001, est proposée. Le genre Perrindema est révisé. Une nouvelle combinaison est établie pour Cephaloncheres lindiensis Moser 1919. Deux nouvelles espèces sont décrites du Mozambique : Perrindema quiterajoensis n. sp. et P. pembaensis n. sp. Un historique du genre est donné ainsi qu’une clé de détermination. La position systématique de ce genre au sein des Pachydemini Burmeister 1855, est discutée. La conservation de l’utilisation du nom Pachydeminae au détriment de Tanyproctinae Erichson 1847, est argumentée. 相似文献
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Ivan Daskalov [1933–2004] was a friend who will be missed by many. Neither the quality of a man nor the concept of a friendship
can be defined with words. We may only say that both will be missed. 相似文献
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抗癌基因:Rb 总被引:1,自引:1,他引:0
党进军 《生物化学与生物物理进展》1992,19(2):92-95
介绍有关视网膜母细胞瘤(Retinoblastoma,简称Rb)基因研究的最新进展。已经证明Rb基因异常与某些肿瘤发生密切相关。其编码产物具有抑制细胞增殖 和细胞转化作用,可能是一个具有DNA结合活性的细胞生长负调控因子。Rb基因作为抗癌基因在肿瘤分子生物学研究中已引起人们的普遍重视。 相似文献
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Keyan G. Tomaselli 《Visual Anthropology: Published in cooperation with the Commission on Visual Anthropology》2013,26(4):327-329
Photographs are a ubiquitous feature of Aboriginal life in Northeastern Australia, with images of relatives being prominently displayed in most Aboriginal houses. This display of photographs is tied to a form of distributed personhood that draws on photographs to create a sense of social immediacy in the absence of close kin. This sense of immediacy also occurs in relation to photographs of the dead, giving these images a particular force for Aboriginal viewers. But further consideration of this force of photographic images suggests that they should be treated neither as things nor as aspects of persons, despite their seeming ability to manifest agency in Aboriginal life-worlds. 相似文献
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Chromosomal evolution: inversions: the chicken or the egg? 总被引:2,自引:0,他引:2
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Barry Halliwell 《Free radical research》1996,25(5):439-454
Ascorbic acid has a multiplicity of antioxidant properties, but it can exert pro-oxidant effects in vitro, usually by interaction with transition metal ions. It is as yet uncertain that these pro-oxidant effects have any biological relevance: some of the available data are summarized. 相似文献