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   3386篇
  免费   441篇
  国内免费   9篇
耳鼻咽喉   17篇
儿科学   88篇
妇产科学   84篇
基础医学   310篇
口腔科学   162篇
临床医学   1004篇
内科学   523篇
皮肤病学   48篇
神经病学   263篇
特种医学   88篇
外科学   381篇
综合类   38篇
一般理论   1篇
预防医学   487篇
眼科学   46篇
药学   148篇
中国医学   2篇
肿瘤学   146篇
  2023年   55篇
  2021年   57篇
  2020年   77篇
  2019年   52篇
  2018年   106篇
  2017年   111篇
  2016年   107篇
  2015年   123篇
  2014年   154篇
  2013年   242篇
  2012年   169篇
  2011年   153篇
  2010年   136篇
  2009年   124篇
  2008年   183篇
  2007年   159篇
  2006年   164篇
  2005年   177篇
  2004年   152篇
  2003年   135篇
  2002年   122篇
  2001年   59篇
  2000年   49篇
  1999年   48篇
  1998年   53篇
  1997年   53篇
  1996年   67篇
  1995年   44篇
  1994年   42篇
  1993年   39篇
  1992年   48篇
  1991年   48篇
  1990年   55篇
  1989年   29篇
  1988年   36篇
  1987年   33篇
  1986年   24篇
  1985年   34篇
  1984年   25篇
  1983年   30篇
  1982年   23篇
  1981年   13篇
  1978年   13篇
  1977年   20篇
  1976年   16篇
  1973年   19篇
  1972年   16篇
  1971年   20篇
  1970年   13篇
  1969年   13篇
排序方式: 共有3836条查询结果,搜索用时 15 毫秒
61.
62.
The term, ‘self‐determination’, implies that individuals have choice and control over aspects of their lives. Individual/family preferences and choices are now core aspects of Australia's National Disability Insurance Scheme, underpinning the importance attributed to these concepts in relation to the fostering of wellbeing. As occupational therapists, in collaboration with our clients, we facilitate and enable occupational performance goals which are personally meaningful and self‐endorsed. As such, our professional practice provides us with a powerful motivational tool by which we can harness individuals’ energies in the pursuit of their goals – occupation. Self‐Determination Theory (SDT) is an influential theory of human motivation and is presented as a way of understanding the elements of our occupational therapy transactions, and the way in which we enact them so as to enhance client outcomes. In SDT, it is proposed that individuals engage in, pursue and persist with certain behaviours when three psychological needs are being met. These needs are for autonomy (engaging in behaviour that is self‐endorsed), relatedness (feeling cared for and connected to others) and competence (feeling effective in one's environment). A focus on supporting satisfaction of these basic psychological needs, it will be argued, engenders therapeutic alliance and internalisation of goal pursuits, thus optimising therapy engagement and outcomes. Examples of practice approaches that attend to the psychological needs for autonomy, relatedness and competence will be presented. A case will be made for embedding SDT into our models of practice as a sound way of articulating how we practise.  相似文献   
63.
Vitamin D deficiency is prevalent in the pediatric CKD population. Recognizing that renal transplant recipients have CKD, we assessed the prevalence of vitamin D insufficiency and deficiency in pediatric renal transplant recipients, compared to a healthy pediatric population. We prospectively studied 25(OH)D levels in 29 pediatric renal transplant recipients and 45 control patients over one yr. The overall prevalence of vitamin D insufficiency and deficiency was common in both populations, at 76% (95% CI: 61, 87%) in the pediatric renal transplant recipients and 91% (95% CI: 80, 98%) in the control group. In the paired renal transplant samples, the mean 25(OH)D level was 52.3 ± 17.9 nmol/L in the winter and 65.6 ± 18.8 nmol/L in the summer (95% CI diff.: 3.9, 22.7), in keeping with a significant seasonal difference. The mean dietary intake of vitamin D in the renal transplant recipients, assessed by three‐day dietary record, was 5.7 μg/day, with a vitamin D intake below the EAR in the majority. We did not find an association between vitamin D intake and 25(OH)D levels in this study, likely due to the low dietary intake of vitamin D within the transplant population, identifying a potential area for intervention and improvement.  相似文献   
64.
65.

Background

Antibiotic delivery to patients with fever and neutropenia (F&N) in <60 min is an increasingly important quality measure for oncology centers, but several published reports indicate that a time to antibiotic delivery (TTA) of <60 min is quite difficult to achieve. Here we report a quality improvement (QI) effort that sought to decrease TTA and assess associated clinical outcomes in pediatric patients with cancer and F&N.

Procedure

We used Lean‐Methodology and a Plan‐Do‐Study‐Act approach to direct QI efforts and prospectively tracked TTA measures and associated clinical outcomes (length of stay, duration of fever, use of imaging studies to search for occult infection, bacteremia, intensive care unit (ICU) consultation or admission, and mortality). We then performed statistical analysis to determine the impact of our QI interventions on total TTA, sub‐process times, and clinical outcomes.

Results

Our QI interventions significantly improved TTA such that we are now able to deliver antibiotics in <60 min nearly 100% of the time. All TTA sub‐process times also improved. Moreover, achieving TTA <60 min significantly reduced the need for ICU consultation or admission (P = 0.003) in this population.

Conclusion

Here we describe our QI effort along with a detailed assessment of several associated clinical outcomes. These data indicate that decreasing TTA to <60 min is achievable and associated with improved outcomes in pediatric patients with cancer and F&N. Pediatr Blood Cancer 2015;62:807–815. © 2015 The Authors. Pediatric Blood & Cancer, published by Wiley Periodicals, Inc.  相似文献   
66.
67.
Background and ObjectivesAlthough individual differences in fear of stimuli related to blood donation is a key determinant of donor recruitment and retention, a donation-specific fear measure has yet to be developed.Materials and MethodsA donation-related fear measure was developed and tested on an initial sample of donors and non-donors, and then re-evaluated on a second sample to confirm the observed factor structure.ResultsAnalyses supported a four-factor structure, with subscales related to fear of: (1) syncopal symptoms, (2) blood and needles, (3) social evaluation, and (4) health screen results.ConclusionThe Blood Donation Fears Inventory is a novel measure to assess fears held by current and potential blood donors.  相似文献   
68.
69.
70.
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