全文获取类型
收费全文 | 133篇 |
免费 | 0篇 |
专业分类
系统科学 | 3篇 |
现状及发展 | 62篇 |
研究方法 | 22篇 |
综合类 | 35篇 |
自然研究 | 11篇 |
出版年
2021年 | 1篇 |
2019年 | 4篇 |
2018年 | 11篇 |
2017年 | 3篇 |
2016年 | 7篇 |
2015年 | 3篇 |
2014年 | 4篇 |
2013年 | 8篇 |
2012年 | 10篇 |
2011年 | 9篇 |
2010年 | 6篇 |
2009年 | 1篇 |
2008年 | 5篇 |
2007年 | 5篇 |
2006年 | 5篇 |
2005年 | 4篇 |
2004年 | 4篇 |
2003年 | 1篇 |
2002年 | 3篇 |
2001年 | 2篇 |
2000年 | 3篇 |
1988年 | 1篇 |
1987年 | 1篇 |
1982年 | 1篇 |
1980年 | 1篇 |
1979年 | 1篇 |
1978年 | 2篇 |
1977年 | 1篇 |
1976年 | 4篇 |
1975年 | 2篇 |
1974年 | 3篇 |
1973年 | 3篇 |
1970年 | 1篇 |
1968年 | 2篇 |
1967年 | 2篇 |
1965年 | 4篇 |
1964年 | 1篇 |
1963年 | 1篇 |
1962年 | 1篇 |
1959年 | 1篇 |
1954年 | 1篇 |
排序方式: 共有133条查询结果,搜索用时 0 毫秒
21.
22.
Esther M. Gallant 《Cellular and molecular life sciences : CMLS》1979,35(5):709-710
Summary The common digital extensor (lateral head) is one of the few porcine muscles of convenient dimensions for in vitro studies of intact cells. Its removal and use in physiological studies are described.Acknowledgments. The pigs used in this investigation were provided by Drs D. G. Topel, L. L. Christian and G. A. Gronert whose cooperation is appreciated. Gratitude is also expressed to Dr N. G. Ghoshal for assistance with anatomical identifications. 相似文献
23.
Myonecrosis induced by scorpion venom 总被引:1,自引:0,他引:1
24.
Esther A. Lezana Martha S. Bianchi N. O. Bianchi 《Cellular and molecular life sciences : CMLS》1978,34(1):30-31
Summary Our results indicate that pig lymphocytes in culture complete their 1st division at 24 h. At 36 h there are 9% of cells in 2nd division. 3rd mitosis appears at 48 h; and at 72 h there are cells engaged in the 4th division.This work was supported by grants from the International Atomic Energy Agency, the Organization of American States and the Consejo Nacional de Investigaciones Científicas y Técnicas.We wish to thank for the technical assistance of Mr J. Serraïno. 相似文献
25.
J. M. Ferreira B. Gilbert R. J. Owellen C. Djerassi 《Cellular and molecular life sciences : CMLS》1963,19(11):585-585
Zusammenfassung VonAspidosperma discolor A. DC. wurden drei Alkaloide (I, II, III) der Aspidospermin-Art isoliert, deren Struktur durch massenspektroskopische und Kernresonanzmessungen bewiesen wurde.
Recipient of a fellowship from the International Cooperation Administration under a program administered by the U.S. National Academy of Sciences. 相似文献
Recipient of a fellowship from the International Cooperation Administration under a program administered by the U.S. National Academy of Sciences. 相似文献
26.
F. G. Graeff S. H. Ferreira A. P. Corrado M. Rocha e Silva 《Cellular and molecular life sciences : CMLS》1965,21(10):607-608
Zusammenfassung Die gefässerweiternde Wirkung von Bradykinin und Kallidin auf den cerebralen Kreislauf wurde durch den «BPF»-Faktor aus Schlangengift erheblich potenziert, während sie bei Eledoisin und Histamin nur wenig verändert wurde. 相似文献
27.
28.
29.
Samuel Cardozo Ribeiro Diego Alves Teles Daniel Oliveira Mesquita Waltécio de Oliveira Almeida Luciano Alves dos Anjos Miriam Camargo Guarnieri 《Journal of Natural History》2019,53(39-40):2365-2377
ABSTRACTWe evaluated the activity period, thermal ecology, habitats, and preference for microhabitats of the skink Mabuya arajara in a humid forest environment on the slope of the Araripe Plateau, Brazil. A total of 283 lizards were observed. The lizards were found to be diurnally active (unimodal type pattern), with peak activity during the hottest hours of the day (1100 to 1200). About habitat use, the majority of individuals (73.8% N = 209) were recorded in the narrow transitional area, in the edges of the forest; while 26.4% of individuals were observed in open areas and no observations were made in dense forest. Seven different types of microhabitats were used, with fallen palm leaves (Arecaceae) being the preferred (47.7% N = 135). Considering all lizards, microhabitat niche breadth was 3.27. Males and females presented a high overlap (0.95) in microhabitat use. The average Tc recorded for M. arajara was 32.06 ± 2.72°C. Body size (SVL) did not influence body temperature (F = 0.51, P = > 0.05). Most of the animals were observed with their bodies completely exposed (67.84%, N = 192), 18.37% (N = 52) were semi-exposed and 13.79% (N = 39) were in shelters. Among animals with some degree of sunlight exposure, 57.59% (N = 163) were in shadows, 25.10% (N = 71) were under sunlight filtered by vegetation, and 17.31% (N = 49) were under direct sunlight.A review of the ecology of Mabuya spp. shows that several features appear to be conserved among members of the genus. 相似文献
30.