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   4266591篇
  免费   360777篇
  国内免费   15249篇
耳鼻咽喉   60898篇
儿科学   132894篇
妇产科学   111713篇
基础医学   654745篇
口腔科学   118748篇
临床医学   387437篇
内科学   774950篇
皮肤病学   103205篇
神经病学   366201篇
特种医学   170509篇
外国民族医学   912篇
外科学   651562篇
综合类   126090篇
现状与发展   23篇
一般理论   2578篇
预防医学   362044篇
眼科学   100408篇
药学   301663篇
  24篇
中国医学   11353篇
肿瘤学   204660篇
  2021年   55635篇
  2020年   35467篇
  2019年   58571篇
  2018年   73143篇
  2017年   55862篇
  2016年   62168篇
  2015年   75469篇
  2014年   110189篇
  2013年   175505篇
  2012年   117226篇
  2011年   120245篇
  2010年   122744篇
  2009年   125943篇
  2008年   107490篇
  2007年   113963篇
  2006年   123498篇
  2005年   118675篇
  2004年   119617篇
  2003年   110367篇
  2002年   100977篇
  2001年   154288篇
  2000年   150459篇
  1999年   139533篇
  1998年   71260篇
  1997年   67744篇
  1996年   65625篇
  1995年   61486篇
  1994年   55576篇
  1993年   51600篇
  1992年   103573篇
  1991年   98952篇
  1990年   94059篇
  1989年   91683篇
  1988年   85307篇
  1987年   83772篇
  1986年   79468篇
  1985年   77914篇
  1984年   65944篇
  1983年   58852篇
  1982年   48137篇
  1981年   44876篇
  1980年   42168篇
  1979年   57826篇
  1978年   47035篇
  1977年   41598篇
  1976年   38663篇
  1975年   37851篇
  1974年   42423篇
  1973年   40553篇
  1972年   38019篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
111.

Objectives

To determine: (i) the behaviour change techniques used by a sample of Australian physiotherapists to promote non-treatment physical activity; and (ii) whether those behaviour change techniques are different to the techniques used to encourage adherence to rehabilitation exercises.

Design

Cross-sectional survey.

Method

An online self-report survey was advertised to private practice and outpatient physiotherapists treating patients with musculoskeletal conditions. The use of 50 behaviour change techniques were measured using five-point Likert-type scale questions.

Results

Four-hundred and eighty-six physiotherapists responded to the survey, with 216 surveys fully completed. Most respondents (85.1%) promoted non-treatment physical activity often or all of the time. Respondents frequently used 29 behaviour change techniques to promote non-treatment physical activity or encourage adherence to rehabilitation exercises. A similar number of behaviour change techniques was frequently used to encourage adherence to rehabilitation exercises (n = 28) and promote non-treatment physical activity (n = 26). Half of the behaviour change techniques included in the survey were frequently used for both promoting non-treatment physical activity and encouraging adherence to rehabilitation exercises (n = 25). Graded tasks was the most, and punishment was the least, frequently reported technique used to promote non-treatment physical activity and encourage adherence to rehabilitation exercises.

Conclusions

Respondents reported using similar behaviour change techniques to promote non-treatment physical activity and encourage adherence to rehabilitation exercises. The variability in behaviour change technique use suggests the behaviour the physiotherapist is promoting influences their behaviour change technique choice. Including the frequently-used behaviour change techniques in non-treatment physical activity promotion interventions might improve their efficacy.  相似文献   
112.
G. Berlin  M. Hammar  L. Tapper 《Platelets》2019,30(4):473-479
Platelets are needed to prevent or arrest bleeding and aggregate at the site of injury upon vascular damage. Platelets express receptors for estrogens which might affect the function of the platelets and their hemostatic ability. The aim was to identify possible differences in platelet function related to age, gender, and phases of the menstrual cycle by use of impedance aggregometry with Multiplate. In the first part of the study, platelet function was assessed in 60 healthy individuals (30 men and 30 women) in each of three age groups (20–25, 40–45, and 60–65 years). In the second part of the study, the platelet function was analyzed on four occasions during the menstrual cycle in women without oral contraceptives (OCs) (n = 17) and compared to 19 women on OCs and 18 men of similar age (20–40 years). For the women on OCs, aggregation was analyzed once during the tablet-free week and once late during the period with OCs. The men were sampled once. Women of younger age (<45 years) had significantly higher agonist-induced aggregation response than both men and post-menopausal women (60–65 years). The agonist-induced aggregation response did not differ between phases of the menstrual cycle or OC use. The results suggest that estradiol and/or progesterone affect spontaneous aggregation since it was found to be lowest in the mid-luteal phase. Spontaneous aggregation was significantly lower in women on OCs than in both men and women without OCs. Our findings indicate that fertile age is associated with higher aggregation response capacity of the platelets, possibly to prevent excessive bleeding during menstruation, but this response capacity is not altered during the menstrual cycle or by use of OCs.  相似文献   
113.
114.
115.
116.
117.
Graefe's Archive for Clinical and Experimental Ophthalmology - The published online version contains mistake as the author's first name and last name have been interchanged as "Hild...  相似文献   
118.
119.
120.
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