全文获取类型
收费全文 | 148篇 |
免费 | 18篇 |
专业分类
耳鼻咽喉 | 1篇 |
儿科学 | 5篇 |
妇产科学 | 7篇 |
基础医学 | 14篇 |
口腔科学 | 10篇 |
临床医学 | 58篇 |
内科学 | 13篇 |
皮肤病学 | 1篇 |
神经病学 | 8篇 |
特种医学 | 18篇 |
外科学 | 9篇 |
综合类 | 1篇 |
预防医学 | 11篇 |
药学 | 7篇 |
中国医学 | 1篇 |
肿瘤学 | 2篇 |
出版年
2021年 | 1篇 |
2018年 | 2篇 |
2017年 | 5篇 |
2016年 | 3篇 |
2015年 | 9篇 |
2014年 | 4篇 |
2013年 | 5篇 |
2012年 | 5篇 |
2011年 | 7篇 |
2010年 | 7篇 |
2009年 | 7篇 |
2008年 | 5篇 |
2007年 | 3篇 |
2006年 | 4篇 |
2005年 | 4篇 |
2004年 | 3篇 |
2003年 | 3篇 |
2002年 | 3篇 |
2001年 | 4篇 |
1999年 | 6篇 |
1998年 | 8篇 |
1997年 | 7篇 |
1996年 | 10篇 |
1995年 | 6篇 |
1994年 | 2篇 |
1992年 | 1篇 |
1991年 | 3篇 |
1990年 | 3篇 |
1988年 | 11篇 |
1987年 | 8篇 |
1986年 | 5篇 |
1985年 | 2篇 |
1984年 | 1篇 |
1982年 | 2篇 |
1981年 | 3篇 |
1979年 | 2篇 |
1977年 | 1篇 |
1975年 | 1篇 |
排序方式: 共有166条查询结果,搜索用时 15 毫秒
81.
Steinberg HV; Nelson RC; Murphy FB; Chezmar JL; Baumgartner BR; Delaney VB; Whelchel JD; Bernardino ME 《Radiology》1987,162(2):337-342
A prospective study compared the efficacy of Doppler ultrasonography (US) and magnetic resonance (MR) imaging in evaluating 38 renal allografts, with specific attention to transplant rejection. Forty-three Doppler US and 42 MR examinations were performed and interpreted. Histologic correlation was obtained from 22 biopsy or nephrectomy specimens. Clinical correlation or a response to instituted therapy was used as confirmation in the remaining allografts. Accuracy in identifying cyclosporine toxicity or acute tubular necrosis could not be evaluated because there were few such cases, with concomitant rejection in most. The ability to predict and identify presence or absence of rejection was not affected by different serum creatinine values. Doppler US was significantly superior to MR imaging in identifying allograft rejection, demonstrating a higher sensitivity (95% vs. 70%), specificity (95% vs. 73%), and accuracy (95% vs. 71%). Because of its low cost and accessibility, Doppler US should become the primary modality for renal transplant screening. 相似文献
82.
Janen Robinso SRN ONC HV CertEd AIPM MA PhD 《Journal of advanced nursing》1987,12(4):421-429
This paper addresses the relevance of research to practice under two headings using a policy analysis perspective. Firstly, the relationship of knowledge to action is considered within the context of a piece of longitudinal research into the welfare of children in hospital. The general difficulties of research application are discussed in terms of the different problem perceptions and time scales held by the policy makers who commission research, and the researchers themselves. The example cited demonstrates a useful compromise. The practical consequences arising from the distinct epistemological premises which underpin research into the natural and social worlds of nursing are considered. Secondly, the constraints on achieving research-based action are described briefly in terms of the resources of time, manpower and funding. It is concluded that an awareness of both conceptual and practical issues is essential in order to comprehend fully the complexity of, and the necessity for, a range of research approaches to nursing issues. 相似文献
83.
84.
The practice nurse: roles and perceptions 总被引:1,自引:0,他引:1
C J Mackereth BA MSc RGN RM Dip HV 《Journal of advanced nursing》1995,21(6):1110-1116
In the winter of 1992, a postal survey was conducted on all practice nurses in Gateshead, England The aim of the research was to descnbe the work of practice nurses (nurses working with and employed by general practitioners), with particular reference to health promotion and communication, and to explore the practice nurses' perceptions of their roles The research found little conformity about what practice nurses do, apart from practical tasks This confirms the essentially practical nature of their work, with poor role definition with regard to screening, health promotion and prevention Training was found to vary, indicating a need for improvement Women's health and surveillance of the health of elderly people were used to illustrate these issues A wide consensus was found about what tasks are appropriate to practice nurses, indicating either that the list of tasks used in the survey accurately describes their potential role or that they are prepared to perform most tasks Practice nurses perceive themselves as the specialists in health promotion although it was not possible to gain an understanding of whether they had a conception of the wider issues involved, which illustrated a limitation of survey methods The information obtained will be relevant in the debate about the future of practice nurses, as well as the future of primary health care services in general 相似文献
85.
M. CHAMBERSRGN RMN DN RNT. BEd Dphil A. LONG RGN RMN HV MSC 《Journal of psychiatric and mental health nursing》1995,2(5):311-316
The purpose of this paper is to explore theoretical and practical issues pertinent to the implementation and development of supportive clinical supervision. The paper highlights a facilitative model of supervision that emphasizes the importance of the supervisory relationship within a person-valuing ethos. The authors put a case for sensitive utilization of a supervision concept that leads, they conclude, to self development, self realization, professional enhancement and advancement, and high quality client care. Over time, the ultimate goals of such supervisory practice are twofold: (i) to improve the overall health of the nation and (ii) to promote the progression of the nursing profession. The authors found that a facilitative approach to clinical supervision is therapeutic and self-propelling for both supervisor and supervisee. 相似文献
86.
Susanne Herold Mirko Steinmueller Werner von Wulffen Lidija Cakarova Ruth Pinto Stephan Pleschka Matthias Mack William A. Kuziel Nadia Corazza Thomas Brunner Werner Seeger Juergen Lohmeyer 《The Journal of experimental medicine》2008,205(13):3065-3077
Mononuclear phagocytes have been attributed a crucial role in the host defense toward influenza virus (IV), but their contribution to influenza-induced lung failure is incompletely understood. We demonstrate for the first time that lung-recruited “exudate” macrophages significantly contribute to alveolar epithelial cell (AEC) apoptosis by the release of tumor necrosis factor–related apoptosis-inducing ligand (TRAIL) in a murine model of influenza-induced pneumonia. Using CC-chemokine receptor 2–deficient (CCR2−/−) mice characterized by defective inflammatory macrophage recruitment, and blocking anti-CCR2 antibodies, we show that exudate macrophage accumulation in the lungs of influenza-infected mice is associated with pronounced AEC apoptosis and increased lung leakage and mortality. Among several proapoptotic mediators analyzed, TRAIL messenger RNA was found to be markedly up-regulated in alveolar exudate macrophages as compared with peripheral blood monocytes. Moreover, among the different alveolar-recruited leukocyte subsets, TRAIL protein was predominantly expressed on macrophages. Finally, abrogation of TRAIL signaling in exudate macrophages resulted in significantly reduced AEC apoptosis, attenuated lung leakage, and increased survival upon IV infection. Collectively, these findings demonstrate a key role for exudate macrophages in the induction of alveolar leakage and mortality in IV pneumonia. Epithelial cell apoptosis induced by TRAIL-expressing macrophages is identified as a major underlying mechanism. 相似文献
87.
88.
Global recognition is increasing of the contribution of midwifery services to optimal outcomes for women and babies, and evidence around how to organize services and the roles of maternity providers. However, a sociological analysis can provide some insight into why the role of midwives varies so widely in different countries. Evidence is necessary, but more important is the role of the state in legalizing and financially supporting midwifery practice, how professional boundaries are negotiated in the maternity care domain, and consumer mobilization in support of midwifery and around maternity issues. (BIRTH 39:4 December 2012) 相似文献
89.
Mary Knott MSc BSc Dip HV RN & Sue Latter PhD BSc PGDip HV RN 《Journal of advanced nursing》1999,30(3):580-588
Although there have been studies of clients' perceptions of health visiting, the views of single, unsupported mothers about the health visiting service have been under-researched. Therefore, this study investigated their views using semi-structured interviews with 12 single, unsupported mothers identified by health visitors within one National Health Service Community Trust. The data were analysed using Burnard's (1991) thematic content analysis, which enabled a number of identifiable themes to emerge. Findings showed that the participants perceived the health visiting service as being concerned almost exclusively with babies and there was a general lack of understanding about the broader role of the health visitor. Clinics were seen as places to visit to weigh the baby but not as a contact point with a health visitor. Some health visitors were perceived as being judgemental in attitude and not necessarily interested in the clients as individuals. Participants considered that health visitors should be friendly, interested, able to promote their confidence and offer individualized advice. Overall the study suggests that health visitors may not be utilizing all dimensions of their role with single, unsupported mothers and may not be communicating effectively with them about this. The study also shows that single, unsupported mothers wish to be treated in the same way as other mothers but at present some feel that they are stigmatized and treated differently. The paper concludes with an outline of the implications of the findings and recommendations for practice and future research. 相似文献
90.
Collette Clifford Msc PhD DANS DipN RGN RNT Asha Day BSc RGN HV John Cox BA BM BCh MA MD FRCP FRCP & Julie Werrett BSc 《Journal of advanced nursing》1999,30(3):655-664
This report describes a project that developed and undertook initial validation of a Punjabi version of the Edinburgh Post-Natal Depression Scale (EPDS). A multi-disciplinary and multi-ethnic project team translated the EPDS from English to Punjabi. A pilot study indicated a high level of correlation between the two scales opening the way for a larger study in which a total of 98 bi-lingual women completed both the English and Punjabi version of the scale 6-8 weeks after delivery of their child. Of these a further 52 completed the scales on a second occasion, 16-18 weeks post-partum. A small sub-group (n = 15) was subject to independent clinical assessment by a community psychiatric nurse (CPN) to determine their mental state, enabling the outcome of the assessment to be compared with the EPDS score. The scores of the English and Punjabi versions of the scale were analysed using Spearman correlation coefficient and the Bland Altman test. A high correlation was found between overall scores and most individual items on the scale. Furthermore, the independent assessment of mental health state indicated that a number of those women who scored 12 or above on the EPDS scale (the cut-off point for determining risk of post-natal depression (PND)) were diagnosed as having a post-natal depressive disorder by the CPN assessing them independently. Whilst the results to date are promising there is a need for further work to determine the validity, sensitivity and specificity of the Punjabi EPDS tool against international classification of depressive disorders and to establish optimal cut-off scores when using the Punjabi version of the EPDS. 相似文献