全文获取类型
收费全文 | 63篇 |
免费 | 1篇 |
出版年
2022年 | 1篇 |
2021年 | 2篇 |
2019年 | 3篇 |
2018年 | 2篇 |
2016年 | 1篇 |
2015年 | 2篇 |
2014年 | 5篇 |
2013年 | 4篇 |
2012年 | 6篇 |
2011年 | 3篇 |
2010年 | 2篇 |
2009年 | 2篇 |
2008年 | 1篇 |
2006年 | 2篇 |
2005年 | 4篇 |
2004年 | 1篇 |
2002年 | 2篇 |
2001年 | 2篇 |
2000年 | 2篇 |
1993年 | 1篇 |
1992年 | 1篇 |
1991年 | 1篇 |
1989年 | 1篇 |
1988年 | 2篇 |
1987年 | 3篇 |
1986年 | 1篇 |
1985年 | 1篇 |
1982年 | 1篇 |
1980年 | 1篇 |
1976年 | 2篇 |
1975年 | 1篇 |
1965年 | 1篇 |
排序方式: 共有64条查询结果,搜索用时 15 毫秒
61.
Samuel J. Eliades Joseph C. Brown Timothy J. Colston Robert N. Fisher Jone B. Niukula Kim Gray Jhabar Vadada Sia Rasalato Cameron D. Siler 《Ecology and evolution》2021,11(9):4731
Animals often exhibit distinct microbial communities when maintained in captivity as compared to when in the wild. Such differentiation may be significant in headstart and reintroduction programs where individuals spend some time in captivity before release into native habitats. Using 16S rRNA gene sequencing, we (i) assessed differences in gut microbial communities between captive and wild Fijian crested iguanas (Brachylophus vitiensis) and (ii) resampled gut microbiota in captive iguanas released onto a native island to monitor microbiome restructuring in the wild. We used both cloacal swabs and fecal samples to further increase our understanding of gut microbial ecology in this IUCN Critically Endangered species. We found significant differentiation in gut microbial community composition and structure between captive and wild iguanas in both sampling schemes. Approximately two months postrelease, microbial communities in cloacal samples from formerly captive iguanas closely resembled wild counterparts. Interestingly, microbial communities in fecal samples from these individuals remained significantly distinct from wild conspecifics. Our results indicate that captive upbringings can lead to differences in microbial assemblages in headstart iguanas as compared to wild individuals even after host reintroduction into native conditions. This investigation highlights the necessity of continuous monitoring of reintroduced animals in the wild to ensure successful acclimatization and release. 相似文献
62.
Three cyanogen bromide peptides from native goat beta-lactoglobulin have been isolated by gel-filtration. The N-terminal fragment has been identified and its sequence was determined to be: Ile-Val-Thr-Gln-Thr-. The results are compared with the N-terminal region of cow beta-lactoglobulins A and B. 相似文献
63.
Jone Isasti-Sanchez Fenja Münz-Zeise Mylène Lancino Stefan Luschnig 《Developmental cell》2021,56(8):1083-1099.e5
- Download : Download high-res image (179KB)
- Download : Download full-size image
64.
C. Jone J. E. Trosko C. C. Chang 《In vitro cellular & developmental biology. Plant》1987,23(3):214-220
Summary A normal rat liver epithelial cell line, with phenotype characteristics of “oval” cells (WB-F344), was examined for its ability
to perform gap-junctional intercellular communication as measured by metabolic cooperation. To test for gap-junctional intercellular
communication, 6-thioguanine-sensitive cells were cocultivated with 6-thioguanine-resistant cells. It was found that the recovery
of 6-thioguanine-resistant cells depended on the densities of the 6-thioguanine-sensitive cells. Higher densities of 6-thioguanine-sensitive
cells reduced the recovery of 6-thioguanine-resistant cells. These observations demonstrate that rat liver epithelial cells
could metabolically cooperate, implying they could perform gap-junctional intercellular communication. Two tumor-promoting
organochlorine pesticides, aldrin and dieldrin, were potent inhibitors of metabolic cooperation for these cells, but 12-0-tetradecanoyl-phorbol-13-acetate
and teleocidin, known mouse skin tumor promoters, were not significantly effective in inhibiting metabolic cooperation. The
results suggest that these cells might provide the basis for an in vitro assay specifically to study liver tumor promoters.
Research was sponsored by a grant from the Air Force Office of Scientific Research, Air Force Systems Command, USAF, under
grant AFOSR-86-0084. The U. S. Government is authorized to reproduce and distribute reprints for government purposes notwithstanding
any copyright notation thereon. 相似文献