全文获取类型
收费全文 | 228篇 |
免费 | 25篇 |
出版年
2019年 | 3篇 |
2018年 | 3篇 |
2017年 | 7篇 |
2016年 | 4篇 |
2015年 | 4篇 |
2014年 | 8篇 |
2013年 | 28篇 |
2012年 | 4篇 |
2011年 | 10篇 |
2010年 | 2篇 |
2009年 | 8篇 |
2008年 | 9篇 |
2007年 | 3篇 |
2006年 | 5篇 |
2005年 | 14篇 |
2004年 | 8篇 |
2003年 | 2篇 |
2002年 | 5篇 |
2001年 | 4篇 |
1999年 | 6篇 |
1998年 | 2篇 |
1997年 | 3篇 |
1996年 | 7篇 |
1992年 | 3篇 |
1989年 | 2篇 |
1986年 | 2篇 |
1985年 | 2篇 |
1984年 | 2篇 |
1981年 | 3篇 |
1979年 | 2篇 |
1978年 | 2篇 |
1975年 | 3篇 |
1971年 | 2篇 |
1969年 | 10篇 |
1968年 | 2篇 |
1967年 | 4篇 |
1966年 | 4篇 |
1965年 | 7篇 |
1915年 | 2篇 |
1897年 | 2篇 |
1888年 | 1篇 |
1887年 | 1篇 |
1883年 | 3篇 |
1882年 | 5篇 |
1881年 | 2篇 |
1880年 | 1篇 |
1879年 | 6篇 |
1878年 | 2篇 |
1877年 | 2篇 |
1876年 | 1篇 |
排序方式: 共有253条查询结果,搜索用时 15 毫秒
231.
232.
233.
Renal kallikrein and phospholipase activities were evaluated in a strain of spontaneously hypertensive rats developed by Dr. Bianchi in Milan (MHR). MHR showed lower than normal kallikrein and phospholipase activities before, at 3 weeks of age and following the development of hypertension. Kallikrein and phospholipase activities were directly correlated both in normotensive and spontenously hypertensive rats. The data suggest that MHR have a genetic defect in kallikrein and phospholipase activities, which may play a pathogenetic role in the development of high blood pressure. 相似文献
234.
235.
236.
237.
238.
239.
Plant Molecular Biology - 相似文献
240.
A Lillehaug C Monceyron Jonassen B Bergsj? M Hofshagen J Tharaldsen LL Nesse K Handeland 《Acta veterinaria Scandinavica》2005,46(4):193
A total of 119 fresh faecal samples were collected from graylag geese migrating northwards in April. Also, cloacal swabs were
taken from 100 carcasses of graylag geese shot during the hunting season in August. In addition, samples were taken from 200
feral pigeons and five mallards. The cultivation of bacteria detected Campylobacter jejuni jejuni in six of the pigeons, and in one of the mallards. Salmonella diarizona 14:k:z53 was detected in one graylag goose, while all pigeons and mallards were negative for salmonellae. No avian paramyxovirus
was found in any of the samples tested. One mallard, from an Oslo river, was influenza A virus positive, confirmed by RT-PCR
and by inoculation of embryonated eggs. The isolate termed A/Duck/Norway/1/03 was found to be of H3N8 type based on sequence
analyses of the hemagglutinin and neuraminidase segments, and serological tests. This is the first time an avian influenza
virus has been isolated in Norway. The study demonstrates that the wild bird species examined may constitute a reservoir for
important bird pathogens and zoonotic agents in Norway. 相似文献