全文获取类型
收费全文 | 412篇 |
免费 | 9篇 |
专业分类
教育 | 281篇 |
科学研究 | 53篇 |
各国文化 | 9篇 |
体育 | 21篇 |
文化理论 | 7篇 |
信息传播 | 50篇 |
出版年
2023年 | 3篇 |
2022年 | 5篇 |
2021年 | 10篇 |
2020年 | 7篇 |
2019年 | 13篇 |
2018年 | 19篇 |
2017年 | 9篇 |
2016年 | 25篇 |
2015年 | 8篇 |
2014年 | 22篇 |
2013年 | 116篇 |
2012年 | 17篇 |
2011年 | 14篇 |
2010年 | 6篇 |
2009年 | 15篇 |
2008年 | 6篇 |
2007年 | 8篇 |
2006年 | 8篇 |
2005年 | 8篇 |
2004年 | 7篇 |
2003年 | 10篇 |
1999年 | 4篇 |
1998年 | 4篇 |
1996年 | 2篇 |
1994年 | 3篇 |
1993年 | 2篇 |
1991年 | 3篇 |
1990年 | 2篇 |
1989年 | 4篇 |
1988年 | 4篇 |
1987年 | 2篇 |
1986年 | 2篇 |
1984年 | 3篇 |
1982年 | 2篇 |
1979年 | 2篇 |
1977年 | 3篇 |
1975年 | 2篇 |
1967年 | 2篇 |
1919年 | 1篇 |
1910年 | 1篇 |
1904年 | 1篇 |
1902年 | 1篇 |
1887年 | 1篇 |
1880年 | 5篇 |
1868年 | 1篇 |
1866年 | 1篇 |
1859年 | 2篇 |
1835年 | 3篇 |
1830年 | 5篇 |
1828年 | 1篇 |
排序方式: 共有421条查询结果,搜索用时 15 毫秒
131.
132.
Alvin Weinberg’s classic and much debated two articles in Minerva, “Criteria for Scientific Choice” (1963) and “Criteria for Scientific Choice II – The Two Cultures” (1964), represent two of the first and most important attempts to create a meta-discourse about priority setting in science policy, and many of the points advanced remain relevant. The goal of this paper is to elaborate on the relevance of some of Weinberg’s original arguments to priority setting today. We have singled out four issues for attention: The tension between scientific and institutional choice, the assumptions behind the triad of scientific, technological and social merit, the elusive ‘externality from size’ argument for funding promoted by Weinberg, and finally the problems involved in the idea of basic science as an ‘overhead cost’ for applied science, and applied science as an ‘overhead’ on a sectoral mission. These four issues will be elaborated from a policy perspective and connected to present day challenges for science and technology policy. 相似文献
133.
134.
135.
Jacob E. Barkley Ellen Glickman Curtis Fennell Mallory Kobak Megan Frank Gregory Farnell 《Journal of sports sciences》2019,37(7):735-740
Low-cost physical activity monitors may provide a more accurate measure of physical activity than subjective methods (e.g., self-report) while being less costly than research-grade accelerometers. The present study assessed the validity of a low-cost monitor (Movband 2) to estimate physical activity behavior/intensity. Participants (N = 23, n = 16 female, BMI = 22.9 ± 4.0 kg/m2, age = 21.9 ± 1.6 years) completed four, five-minute treadmill stages (2.0, 3.0, 4.0, 5.0 MPH) while wearing both the Movband and the previously-validated Actigraph monitor. Oxygen consumption (VO2) was recorded during each stage (Laboratory assessment). A subset (n = 15, n = 10 female, BMI = 22.2 ± 3.2 kg/m2, age = 21.5 ± 0.8 years) of these participants then wore the two accelerometers for three days (Free-living assessment). During the Laboratory assessment there were strong, significant (r = 0.94, p ≤ 0.001) relationships between Movband and Actigraph counts and VO2. During Free-living assessment there was also a strong, significant (r = 0.97, p < 0.001) correlation between Movband and Actigraph counts. The low-cost, Movband accelerometer appears to provide a valid assessment of physical activity behavior/intensity. 相似文献
136.
Merle Jacob 《Minerva》2009,47(4):391-405
The new prominence given to science for economic growth and industry comes with an increased policy focus on the promotion
of commodification and commercialization of academic science. This paper posits that this increased interest in commodification
is a new steering mechanism for governing science. This is achieved by first outlining what is meant by the commodification
of scientific knowledge through reviewing a selection of literatures on the concept of commodification. The paper concludes
with a discussion of how commodification functions as a means for governing science. 相似文献
137.
This study examines the ways single Black mothers contribute to the educational success of their 11th-grade sons, despite the fact that their sons are enrolled in “failing schools.” Data from five interviews and one focus group reveal common characteristics of how single-Black mothers help their sons beat the odds. 相似文献
138.
Isaac D. Barchas 《Academic Questions》1989,3(1):24-34
Isaac D. Barchas, who graduated from Stanford University in June 1989, served as a member of the committee mandated to implement
the new core requirement in “Cultures, Ideas, and Values”. 相似文献
139.
140.