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   1480篇
  免费   344篇
  国内免费   5篇
儿科学   35篇
妇产科学   162篇
基础医学   13篇
口腔科学   11篇
临床医学   1047篇
内科学   193篇
皮肤病学   12篇
神经病学   44篇
特种医学   50篇
外科学   71篇
综合类   25篇
预防医学   116篇
眼科学   2篇
药学   14篇
肿瘤学   34篇
  2024年   6篇
  2023年   56篇
  2022年   5篇
  2021年   26篇
  2020年   27篇
  2019年   12篇
  2018年   84篇
  2017年   100篇
  2016年   98篇
  2015年   94篇
  2014年   91篇
  2013年   95篇
  2012年   41篇
  2011年   44篇
  2010年   62篇
  2009年   89篇
  2008年   60篇
  2007年   57篇
  2006年   41篇
  2005年   35篇
  2004年   35篇
  2003年   24篇
  2002年   17篇
  2001年   34篇
  2000年   25篇
  1999年   39篇
  1998年   41篇
  1997年   64篇
  1996年   53篇
  1995年   53篇
  1994年   40篇
  1993年   32篇
  1992年   31篇
  1991年   23篇
  1990年   30篇
  1989年   26篇
  1988年   16篇
  1987年   15篇
  1986年   12篇
  1985年   9篇
  1984年   12篇
  1983年   9篇
  1982年   9篇
  1981年   10篇
  1980年   5篇
  1979年   8篇
  1978年   4篇
  1977年   6篇
  1976年   9篇
  1975年   9篇
排序方式: 共有1829条查询结果,搜索用时 187 毫秒
91.
Abstract: Background: Both peer and professional support have been identified as important to the success of breastfeeding. The aim of this metasynthesis was to examine women’s perceptions and experiences of breastfeeding support, either professional or peer, to illuminate the components of support that they deemed “supportive.” Methods: The metasynthesis included studies of both formal or “created” peer and professional support for breastfeeding women but excluded studies of family or informal support. Qualitative studies were included as well as large‐scale surveys if they reported the analysis of qualitative data gathered through open‐ended responses. Primiparas and multiparas who initiated breastfeeding were included. Studies published in English, in peer‐reviewed journals, and undertaken between January 1990 and December 2007 were included. After assessment for relevance and quality, 31 studies were included. Meta‐ethnographic methods were used to identify categories and themes. Results: The metasynthesis resulted in four categories comprising 20 themes. The synthesis indicated that support for breastfeeding occurred along a continuum from authentic presence at one end, perceived as effective support, to disconnected encounters at the other, perceived as ineffective or even discouraging and counterproductive. A facilitative approach versus a reductionist approach was identified as contrasting styles of support that women experienced as helpful or unhelpful. Conclusions: The findings emphasize the importance of person‐centered communication skills and of relationships in supporting a woman to breastfeed. Organizational systems and services that facilitate continuity of caregiver, for example continuity of midwifery care or peer support models, are more likely to facilitate an authentic presence, involving supportive care and a trusting relationship with professionals. (BIRTH 38:1 March 2011)  相似文献   
92.
93.
Abstract: Background: The World Health Organization (WHO) developed the Baby‐Friendly Hospital Initiative to improve hospital maternity care practices that support breastfeeding. In Hong Kong, although no hospitals have yet received the Baby‐Friendly status, efforts have been made to improve breastfeeding support. The aim of this study was to examine the impact of Baby‐Friendly hospital practices on breastfeeding duration. Methods: A sample of 1,242 breastfeeding mother‐infant pairs was recruited from four public hospitals in Hong Kong and followed up prospectively for up to 12 months. The primary outcome variable was defined as breastfeeding for 8 weeks or less. Predictor variables included six Baby‐Friendly practices: breastfeeding initiation within 1 hour of birth, exclusive breastfeeding while in hospital, rooming‐in, breastfeeding on demand, no pacifiers or artificial nipples, and information on breastfeeding support groups provided on discharge. Results: Only 46.6 percent of women breastfed for more than 8 weeks, and only 4.8 percent of mothers experienced all six Baby‐Friendly practices. After controlling for all other Baby‐Friendly practices and possible confounding variables, exclusive breastfeeding while in hospital was protective against early breastfeeding cessation (OR: 0.61; 95% CI: 0.42–0.88). Compared with mothers who experienced all six Baby‐Friendly practices, those who experienced one or fewer Baby‐Friendly practices were almost three times more likely to discontinue breastfeeding (OR: 3.13; 95% CI: 1.41–6.95). Conclusions: Greater exposure to Baby‐Friendly practices would substantially increase new mothers’ chances of breastfeeding beyond 8 weeks postpartum. To further improve maternity care practices in hospitals, institutional and administrative support are required to ensure all mothers receive adequate breastfeeding support in accordance with WHO guidelines. (BIRTH 38:3 September 2011)  相似文献   
94.
95.
96.
97.
wagner j.i.j., cummings g., smith d.l., olson j., anderson l. & warren s. (2010) Journal of Nursing Management 18 , 448–462
The relationship between structural empowerment and psychological empowerment for nurses: a systematic review Aim To describe the findings of a systematic review examining the relationship between structural empowerment and psychological empowerment for registered nurses (RNs). Background Workplace empowerment research reveals a link between empowerment and positive work behaviours and attitudes. Research demonstrating the essential relationship between structural empowerment and psychological empowerment will provide direction for future interventions aimed at the development of a strong and effective health care sector. Methods Published research articles examining structural empowerment and psychological empowerment for nurses were selected from computerized databases and selected websites. Data extraction and methodological quality assessment were completed for the included research articles. Results Ten papers representing six studies reveal significant associations between structural empowerment and psychological empowerment for RNs. Implications for nursing management Creation of an environment that provides structural empowerment is an important organizational strategy that contributes to RNs’ psychological empowerment and ultimately leads to positive work behaviours and attitudes. Critical structural components of an empowered workplace can contribute to a healthy, productive and innovative RN workforce with increased job satisfaction and retention.  相似文献   
98.
brady germain p. & cummings g.g. (2010) Journal of Nursing Management 18, 425–439
The influence of nursing leadership on nurse performance: a systematic literature review Aim The aim was to explore leadership factors that influence nurse performance and particularly, the role that nursing leadership behaviors play in nurses’ perceptions of performance motivation. Background Nurse performance is vital to quality patient care outcomes and nursing leadership behaviors have been linked to nurse performance. Evaluations A review of research articles that examined the factors that nurses perceived as influencing their motivation and performance was conducted. Eight studies were included in the final analysis. Key issues Nurses’ perceptions of factors that affect their motivation and ability to perform were grouped into five categories using content analysis: autonomy, work relationships, resource accessibility, nurse factors, and leadership practices. Nursing leadership behaviors were found to influence both nurses’ motivations directly and indirectly via other factors. Conclusion The review suggests that nurse performance may be improved by addressing nurse autonomy, relationships among nurses, their colleagues and leaders, and resource accessibility. Implications for nursing management Nursing managers and leaders may enhance their nurses’ performance by understanding and addressing the factors that affect their ability and motivation to perform.  相似文献   
99.
100.
Aim  This study aimed to identify and examine predictors of short-term absences of staff nurses working in hospital settings reported in the research literature.
Background  Front-line staff nurse absenteeism contributes to discontinuity of patient care, decreased staff morale and is costly to healthcare.
Evaluation  A systematic review of studies from 1986 to 2006, obtained through electronic searches of 10 online databases led to inclusion of 16 peer-reviewed research articles. Seventy potential predictors of absenteeism were examined and analysed using content analysis.
Key issue  Our findings showed that individual 'nurses' prior attendance records', 'work attitudes' (job satisfaction, organizational commitment and work/job involvement) and 'retention factors' reduced nurse absenteeism, whereas 'burnout' and 'job stress' increased absenteeism. Remaining factors examined in the literature did not significantly predict nurse absenteeism.
Conclusions  Reasons underlying absenteeism among staff nurses are still poorly understood. Lack of robust theory about nursing absenteeism may underlie the inconsistent results found in this review. Further theory development and research is required to explore the determinants of short-term absenteeism of nurses in acute care hospitals.
Implications for nursing management  Work environment factors that increase nurses' job satisfaction, and reduce burnout and job stress need to be considered in managing staff nurse absenteeism.  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