全文获取类型
收费全文 | 2477篇 |
免费 | 98篇 |
国内免费 | 3篇 |
专业分类
2578篇 |
出版年
2023年 | 20篇 |
2022年 | 14篇 |
2021年 | 22篇 |
2020年 | 49篇 |
2019年 | 61篇 |
2018年 | 85篇 |
2017年 | 71篇 |
2016年 | 67篇 |
2015年 | 66篇 |
2014年 | 57篇 |
2013年 | 256篇 |
2012年 | 97篇 |
2011年 | 96篇 |
2010年 | 71篇 |
2009年 | 55篇 |
2008年 | 81篇 |
2007年 | 93篇 |
2006年 | 83篇 |
2005年 | 53篇 |
2004年 | 70篇 |
2003年 | 44篇 |
2002年 | 47篇 |
2001年 | 121篇 |
2000年 | 117篇 |
1999年 | 75篇 |
1998年 | 17篇 |
1997年 | 28篇 |
1996年 | 22篇 |
1994年 | 18篇 |
1992年 | 40篇 |
1991年 | 54篇 |
1990年 | 39篇 |
1989年 | 42篇 |
1988年 | 42篇 |
1987年 | 28篇 |
1986年 | 18篇 |
1985年 | 23篇 |
1984年 | 22篇 |
1983年 | 18篇 |
1981年 | 15篇 |
1979年 | 20篇 |
1976年 | 15篇 |
1975年 | 13篇 |
1974年 | 16篇 |
1973年 | 16篇 |
1971年 | 17篇 |
1970年 | 14篇 |
1969年 | 15篇 |
1968年 | 16篇 |
1967年 | 16篇 |
排序方式: 共有2578条查询结果,搜索用时 15 毫秒
981.
982.
983.
984.
Paige G. Lancaster PhD J. Taylor Moore PhD Stefanie E. Putter PhD Peter Y. Chen PhD Konstantin P. Cigularov PhD Aaron Baker PsyD Paul Quinnett PhD 《Suicide & life-threatening behavior》2014,44(5):510-523
Web‐based training programs have advantages such as increased scheduling flexibility and decreased training costs. Yet the feasibility of applying them to injury prevention programs such as suicide prevention gatekeeper training has not been empirically verified. Two studies were conducted to assess the feasibility and effectiveness of a web‐based version of the Question, Persuade, and Refer (QPR) gatekeeper training program. Results of Study 1 revealed that participants in a web‐based training demonstrated significant gains in knowledge of suicide prevention, self‐efficacy for suicide prevention, and behavioral intentions to engage in suicide prevention, as compared to those in a control group. Results of Study 2 further showed that the web‐based training may be as effective as the face‐to‐face QPR training across pre‐ (T1) and post training (T2); however, knowledge, self‐efficacy, and behavioral intentions in both groups generally declined from T2 to 6‐months after the training. Overall, these results provide initial evidence to support the feasibility of adopting web‐based media to deliver gatekeeper training. Moreover, the present findings suggest the need to understand how to maintain gatekeepers’ knowledge, confidence, motivation, and skills after training. 相似文献
985.
Y. Tzvi Langermann 《Jewish History》2004,18(2-3):147-172
This study approaches Maimonides' attitude towards miracles as a long-term process. The young Maimonides saw no room nor any need for miracles. Science provided a full and satisfactory explanation for events within a deterministic cosmos. However, as he matured, his doubts concerning the capacity of science to account for all events intensified; he increasingly realized that some features of the cosmos, or events in Jewish history, cannot be accounted for fully by any explanatory system. As his disbelief in the unlimited power of scientific explanation grew, he became more receptive to the possibility of miracles. For miracles are nothing other than events or features that, while not being totally at odds with science, cannot be fully accounted for in any theory. Maimonides' ultimate acceptance of miracles was, therefore, his ultimate acceptance of his own doubts and uncertainties. 相似文献
986.
987.
988.
989.
990.
The WPPSI-R, WISC-R, and WPPSI were administered in a counterbalanced design to 72 children, between the ages of 5 years,
11 months and 6 years, 8 months, in order to determine their equivalence by testing the equality of means, variances, and
covariances based on scaled scores and IQs. The results indicated that the three scales were not equivalent with respect to
any of the IQs because they did not meet one or more of the criteria. The relative magnitudes of the mean IQs on the three
scales were in accord with the predicted order: highest IQs on WPPSI, next highest on WISC-R, and the lowest on WPPSI-R. Results
were discussed in the context of the secular inflation in IQs and the corresponding compensatory deflation built into the
normative data of the new versions. 相似文献