全文获取类型
收费全文 | 383篇 |
免费 | 9篇 |
国内免费 | 1篇 |
专业分类
教育 | 341篇 |
科学研究 | 5篇 |
各国文化 | 3篇 |
体育 | 20篇 |
文化理论 | 1篇 |
信息传播 | 23篇 |
出版年
2022年 | 3篇 |
2020年 | 4篇 |
2019年 | 5篇 |
2018年 | 15篇 |
2017年 | 12篇 |
2016年 | 7篇 |
2015年 | 2篇 |
2014年 | 9篇 |
2013年 | 101篇 |
2012年 | 7篇 |
2011年 | 6篇 |
2010年 | 11篇 |
2009年 | 8篇 |
2008年 | 9篇 |
2007年 | 7篇 |
2006年 | 8篇 |
2005年 | 5篇 |
2004年 | 19篇 |
2003年 | 8篇 |
2002年 | 4篇 |
2001年 | 4篇 |
2000年 | 5篇 |
1999年 | 6篇 |
1998年 | 2篇 |
1997年 | 9篇 |
1996年 | 10篇 |
1995年 | 4篇 |
1994年 | 8篇 |
1993年 | 10篇 |
1992年 | 14篇 |
1991年 | 5篇 |
1990年 | 12篇 |
1989年 | 7篇 |
1988年 | 6篇 |
1987年 | 4篇 |
1986年 | 2篇 |
1984年 | 3篇 |
1983年 | 2篇 |
1982年 | 3篇 |
1980年 | 4篇 |
1979年 | 4篇 |
1978年 | 2篇 |
1977年 | 3篇 |
1976年 | 2篇 |
1975年 | 2篇 |
1974年 | 2篇 |
1970年 | 1篇 |
1968年 | 3篇 |
1967年 | 1篇 |
1966年 | 1篇 |
排序方式: 共有393条查询结果,搜索用时 15 毫秒
311.
312.
313.
314.
Godard B Ozdemir V Fortin M Egalité N 《Public understanding of science (Bristol, England)》2010,19(4):469-485
Substantial investments were made in population based biobanks over the past decade. Ethnocultural community members are both sponsors and beneficiaries of biobanks. In addition, the success of biobank projects depends on community support and participation. Yet there are few empirical data on views, perceptions and interests of ethnocultural communities on biobanks. This silent gap in genomics, ethics and policy literatures has to be addressed. We conducted a qualitative research study with in-depth interviews of ethnocultural community leaders (e.g., members of the Canadian Parliament, school commissioners) on their perspectives concerning population specific genomics research and biobanks. An equal partnership model where public is not only informed, but also involved in decision-making processes was perceived as an essential democratic requisite. These empirical data on ethnocultural community leaders' views, interests and perceptions identify several key socio-cultural and ethical factors that can be decisive for effective and sustainable community involvement in biobanks. 相似文献
315.
316.
317.
Marilyn A. Winkleby Judith Ned David Ahn Alana Koehler Kathleen Fagliano Casey Crump 《Journal of Science Education and Technology》2014,23(1):138-144
Given limited funding for school-based science education, non-school-based programs have been developed at colleges and universities to increase the number of students entering science- and health-related careers and address critical workforce needs. However, few evaluations of such programs have been conducted. We report the design and methods of a controlled trial to evaluate the Stanford Medical Youth Science Program’s Summer Residential Program (SRP), a 25-year-old university-based biomedical pipeline program. This 5-year matched cohort study uses an annual survey to assess educational and career outcomes among four cohorts of students who participate in the SRP and a matched comparison group of applicants who were not chosen to participate in the SRP. Matching on sociodemographic and academic background allows control for potential confounding. This design enables the testing of whether the SRP has an independent effect on educational- and career-related outcomes above and beyond the effects of other factors such as gender, ethnicity, socioeconomic background, and pre-intervention academic preparation. The results will help determine which curriculum components contribute most to successful outcomes and which students benefit most. After 4 years of follow-up, the results demonstrate high response rates from SRP participants and the comparison group with completion rates near 90 %, similar response rates by gender and ethnicity, and little attrition with each additional year of follow-up. This design and methods can potentially be replicated to evaluate and improve other biomedical pipeline programs, which are increasingly important for equipping more students for science- and health-related careers. 相似文献
318.
319.
320.
This paper is adapted from a keynote address given to the AUA Annual Conference, held at Warwick 14–16 March 2005 相似文献