首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   154篇
  免费   20篇
  国内免费   2篇
  2023年   1篇
  2021年   1篇
  2019年   1篇
  2017年   5篇
  2016年   8篇
  2015年   4篇
  2014年   10篇
  2013年   9篇
  2012年   9篇
  2011年   9篇
  2010年   7篇
  2009年   9篇
  2008年   5篇
  2007年   4篇
  2006年   4篇
  2005年   4篇
  2004年   3篇
  2003年   1篇
  2002年   4篇
  2001年   4篇
  2000年   7篇
  1999年   5篇
  1998年   2篇
  1997年   2篇
  1996年   4篇
  1995年   2篇
  1994年   2篇
  1992年   1篇
  1991年   2篇
  1990年   4篇
  1989年   3篇
  1988年   4篇
  1987年   2篇
  1985年   5篇
  1984年   5篇
  1983年   1篇
  1981年   2篇
  1980年   1篇
  1979年   2篇
  1978年   4篇
  1977年   3篇
  1976年   1篇
  1975年   1篇
  1974年   2篇
  1973年   1篇
  1972年   1篇
  1970年   3篇
  1969年   1篇
  1966年   1篇
排序方式: 共有176条查询结果,搜索用时 15 毫秒
161.
162.
A bovine Y-specific marker amplified by RAPD   总被引:5,自引:0,他引:5  
  相似文献   
163.
164.
165.
The number of hospital based posts in which nurses take over clinical work previously done by junior doctors is growing. Accountability for the scope of such new roles and the standards of practice which apply to them are still unclear. When analysed together and compared, the regulations arising from the professional bodies (GMC and UKCC), civil law concerning certain wrongs to patients, and employment law are sometimes contradictory and hard to interpret. The resulting uncertainties about appropriate management for clinical roles evolving between the professions, coupled with an increasingly litigious public, put the nurses and consultants involved at risk of complaints and of disciplinary and legal action. Drawing on our current research into changing clinical roles at the medical-nursing interface, we suggest strategies to reduce risk. Doctors and nurses should be equal partners in planning and managing these new posts, patients should be informed adequately about the nature of the postholder''s role and training, significant changes in the work of such postholders should be formally acknowledged by the employer and relevant insurers, individuals taking up new roles should have access to legal advice and support to cover legal risk, and national regulatory bodies need to work together to harmonise their codes of practice in relation to changing clinical roles between the professions.  相似文献   
166.
Human T-cell leukemia virus type 1 (HTLV-1) is a retrovirus that causes an aggressive T-cell malignancy and a variety of inflammatory conditions. The integrated provirus includes a single binding site for the epigenomic insulator, CCCTC-binding protein (CTCF), but its function remains unclear. In the current study, a mutant virus was examined that eliminates the CTCF-binding site. The mutation did not disrupt the kinetics and levels of virus gene expression, or establishment of or reactivation from latency. However, the mutation disrupted the epigenetic barrier function, resulting in enhanced DNA CpG methylation downstream of the CTCF binding site on both strands of the integrated provirus and H3K4Me3, H3K36Me3, and H3K27Me3 chromatin modifications both up- and downstream of the site. A majority of clonal cell lines infected with wild type HTLV-1 exhibited increased plus strand gene expression with CTCF knockdown, while expression in mutant HTLV-1 clonal lines was unaffected. These findings indicate that CTCF binding regulates HTLV-1 gene expression, DNA and histone methylation in an integration site dependent fashion.  相似文献   
167.
In 2004, the authors convened a session entitled ‘Public Anthropology’ at the Australian Anthropology Society's annual conference. The session examined the development of a specific stream of public anthropology in the USA and Britain and its articulation by writers such as Robert Borofsky in the aftermath of the Yanomami controversy and Richard Werbner in the African context. In pursuing this discussion, we identify three key characteristics that distinguish public anthropology: the broader application of ethnography to urgent and political social issues in a way that shows the profoundly relational nature of current crises to historical, political and local events and forces; a focus on this approach as a central aspect of training, particularly at the postgraduate level; and an active and accessible engagement in public discussion and debate. We present a short case study from Skidmore's research on disease, suffering and the health system in Burma to illustrate ways in which a public anthropology approach could represent the current health crisis in Burma in an effective manner. Drawing also on the work of our fellow panellists, we argue for the timeliness of the development of a public anthropology stream in Australia and for the deliberate inclusion of public anthropology in the Australian Anthropology Society's mandate.  相似文献   
168.
169.
170.
Summary Sulfolobus acidocaldarius attachment to coal particles was observed in 20% coal slurry at 72°C and pH 2.0. The rate and extent of attachment were determined and the data fit the Langmuir adsorption model. The results compared qualitatively with selected adsorption data from other investigators forThiobacillus ferrooxidans.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号