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   1910篇
  免费   119篇
  国内免费   7篇
耳鼻咽喉   8篇
儿科学   12篇
妇产科学   40篇
基础医学   100篇
口腔科学   28篇
临床医学   327篇
内科学   103篇
皮肤病学   41篇
神经病学   79篇
特种医学   11篇
外科学   28篇
综合类   170篇
预防医学   926篇
眼科学   4篇
药学   86篇
  1篇
中国医学   7篇
肿瘤学   65篇
  2023年   40篇
  2022年   64篇
  2021年   59篇
  2020年   59篇
  2019年   52篇
  2018年   52篇
  2017年   51篇
  2016年   74篇
  2015年   43篇
  2014年   133篇
  2013年   148篇
  2012年   139篇
  2011年   155篇
  2010年   133篇
  2009年   114篇
  2008年   106篇
  2007年   124篇
  2006年   68篇
  2005年   50篇
  2004年   33篇
  2003年   25篇
  2002年   36篇
  2001年   23篇
  2000年   20篇
  1999年   21篇
  1998年   15篇
  1997年   11篇
  1996年   18篇
  1995年   6篇
  1994年   3篇
  1993年   1篇
  1992年   1篇
  1991年   1篇
  1990年   2篇
  1989年   1篇
  1988年   3篇
  1987年   5篇
  1986年   24篇
  1985年   9篇
  1984年   10篇
  1983年   11篇
  1982年   6篇
  1981年   8篇
  1980年   7篇
  1979年   13篇
  1978年   15篇
  1977年   10篇
  1976年   18篇
  1975年   12篇
  1974年   4篇
排序方式: 共有2036条查询结果,搜索用时 18 毫秒
1.
ObjectivesCancer can have long-term biopsychological impacts for young people that persist for years. To promote adjustment, it is essential to understand how young people cope, yet this is relatively understudied.MethodsThis study explored the coping strategies using semi-structured interviews with 16 young people with cancer aged 15–24 years. Eligible participants were diagnosed within the previous 24 months and recruited through Australian Youth Cancer Services. Transcribed interviews were analysed using content analysis.ResultsCoping strategies included: seeking support; controlling the focus; avoiding negatives and staying positive; meaning making and; changes with time. During treatment, seeking support, focussing on the present, distraction and avoidance were commonly applied. Following treatment, planning for the future, avoidance of re-traumatising situations and meaning making were used.ConclusionFindings support the concept of coping as a dynamic process where different strategies are used depending on the stressor, available resources and previous experiences.Practice ImplicationsComprehensive, developmentally appropriate psychosocial assessments, open communication, education and information provision, as well as appropriate referral for support are essential, particularly for young cancer survivors identified at risk.  相似文献   
2.

Objective

To evaluate the impact of the Youth Form Strategy (EFJ, Estrategia Forma Joven) on the attitudes and behaviours of students in the fourth year of compulsory secondary school in Seville, Spain.

Methods

A longitudinal observational design was used with two groups; one received the EFJ (EFJ group) and other did not (non-EFJ group). In the initial evaluation, 402 participants were randomly selected and, in the follow-up at 6 months, 322 participants were evaluated (161 per group). Validated data collection tools were used, and 2 × 2 tables, odds ratio (OR) and general ANOVA for 2 × 2 mixed factorial design (p < 0.05) were calculated.

Results

Favourable effects of the EFJ were found: in the area of sexuality, the percentage of participants who had sexual intercourse in the final assessment was lower in the EFJ group (14.9% vs 23.4%; OR = 0.57), as were counter-effects: start of tobacco use was higher in the EFJ group (19.5% vs 9.1%; OR = 2.43). However, these differences were not statistically significant.

Conclusions

The similarities in the school health promotion programme in centres with and without EFJ may have influenced the lack of conclusive results. Individual and/or group counselling at schools, a distinguishing feature of the EFJ, could have delayed sexual intercourse in the EFJ group. Based on the studies on school health promotion activities, good practices that could help to improve the effectiveness of the EFJ are recommended.  相似文献   
3.
目的 构建护士对麻醉复苏室(post-anesthesia care unit,PACU)患儿苏醒期家属探视信念和态度的量表并评价其信效度。方法 通过回顾相关文献、专家咨询等方法构建护士对PACU患儿苏醒期家属探视信念和态度的量表暂定版,采用暂定版对460名PACU护理人员进行调查并检验其信效度。结果 修订的PACU患儿苏醒期家属探视信念和态度量表包含20个条目,其中信念维度3个因子,17个条目;态度维度1个因子,3个条目。总量表的Cronbach′s α系数为0.924,重测信度为0.898,内容效度为0.892。探索性因子分析提取信念维度3个因子的累积方差贡献率62.423%,各维度之间的相关系数为0.53~0.65,各维度与量表总分之间的相关系数为0.73~0.91,验证性的因子分析证实PACU患儿苏醒期家属探视信念和量表各项适配指数均达标。结论 PACU患儿苏醒期家属探视信念和态度量表有较好的信效度,可用作PACU护士对患儿苏醒期家属开放性探视信念和态度测评工具的参考。  相似文献   
4.
5.
BackgroundKenya ranks among the countries in Africa with high fertility rates. In order to reverse the trends in high fertility rates, there is need to increase uptake of family planning services particularly by use of community health workers (CHWs) in providing these services in rural areas.ObjectiveTo describe the perceptions of women towards family planning service provision by CHWs in four rural districts of Western Kenya. It is based on baseline survey data from a three-year, rural community-based family planning project funded by The David and Lucile Packard Foundation.MethodsA cross-sectional baseline survey was conducted in Western Kenya. The data presented is part of a broader the broader survey . A survey questionnaire was administered to 1,997 women (15–49 years) but only 963 cases were valid for our analyses.ResultsThe findings revealed that only a third of the respondents exhibited high approval for Family Planning services from CHWs. Only four out of the thirteen variables explored showed significance on attitudes towards family planning services from CHWs. These are age, level of education, knowledge about family planning benefits and districts.ConclusionWomen''s perception towards family planning services delivered by CHWs in Western region in Kenya is quite low. To improve the demand and supply for family planning services in this region, there is need to invest a substantial amount of effort into sensitization of women on the relevance of CHWs in providing family planning services.  相似文献   
6.
7.

Background

The World Health Organization (WHO) has made the problem of solving antibiotic resistance one of its priorities. The present study was designed to determine knowledge and attitude towards antibiotic use in Alkharj, Saudi Arabia.

Materials and methods

A cross-sectional survey was conducted in Alkharj, Saudi Arabia in the period of July 2017 to October 2017. A self-administered questionnaire included question on demographic characteristics, antibiotic usage, knowledge and attitude towards antibiotics use. The data were analyzed using Statistical Package For the Social Science (SPSS).

Results

A total of 405 questionnaires were randomly distributed to the general public in Al-Kharj, Saudi Arabia. However, only 387 of the participants completed the questionnaire making the response rate 95.5%. The majority of the participants (64.3%) know antibiotics effective against bacterial infections while (46.8%) of participants believed that antibiotics can be used to treat viral infections. A significant positive correlation was noted between the respondents’ antibiotic knowledge score and their attitude score (r?=?0.523, p?=?0.000). Significantly higher mean knowledge score of antibiotics was observed among study participants who were married, employed, participants working in health sector, high educational and high monthly income groups. Mean attitude score was found to be significantly high for females, participants working in health sector, high educational and high monthly income groups.

Conclusion

The participants who have good knowledge towards antibiotics use showed positive attitude towards antibiotics use. Some specific groups should to be targeted for educational intervention in terms of appropriate antibiotic use, such as those who have received a low level of education and are in receipt of a low monthly income.  相似文献   
8.
9.
10.
Nursing students have compulsory statistics courses in their degree program, but they usually have negative attitudes toward statistics that may hinder their learning. The present study aims: (i) to investigate nurse students’ attitudes toward statistics and the relationships with mathematical background and personality traits; (ii) to stress individual changes in attitude that occur during the course; and (iii) to explore if mathematical background and personality traits influence these changes. We adopted a one-group pre-post survey study. Fifty nursing students were enrolled in an introductory statistics course at the Sapienza University of Rome in Italy during the 2018–2019 academic year. Participants were surveyed at the beginning and end of the course administering a multidimensional measure of attitude toward statistics. Multiple regression analyses were run to establish the relative impact of mathematical background and Big Five personality factors on attitude components, as well as the changes in these attitude components. Results confirmed the predictive role of mathematic competence on some attitude dimensions and showed that also personality traits influenced attitudes toward statistics. However, the observed changes in attitudes during the course were minimally influenced by these factors. Findings suggest that course pedagogy can enhance students’ attitudes regardless their mathematical background and personality.  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