全文获取类型
收费全文 | 663篇 |
免费 | 3篇 |
国内免费 | 1篇 |
专业分类
教育 | 536篇 |
科学研究 | 35篇 |
各国文化 | 15篇 |
体育 | 6篇 |
信息传播 | 75篇 |
出版年
2022年 | 5篇 |
2021年 | 9篇 |
2020年 | 9篇 |
2019年 | 16篇 |
2018年 | 13篇 |
2017年 | 20篇 |
2016年 | 17篇 |
2015年 | 14篇 |
2014年 | 15篇 |
2013年 | 125篇 |
2012年 | 21篇 |
2011年 | 13篇 |
2010年 | 23篇 |
2009年 | 17篇 |
2008年 | 17篇 |
2007年 | 14篇 |
2006年 | 6篇 |
2005年 | 14篇 |
2004年 | 17篇 |
2003年 | 7篇 |
2002年 | 12篇 |
2001年 | 7篇 |
2000年 | 7篇 |
1999年 | 10篇 |
1998年 | 8篇 |
1997年 | 8篇 |
1996年 | 7篇 |
1995年 | 11篇 |
1994年 | 6篇 |
1993年 | 11篇 |
1992年 | 7篇 |
1991年 | 9篇 |
1990年 | 13篇 |
1989年 | 8篇 |
1988年 | 5篇 |
1987年 | 6篇 |
1984年 | 9篇 |
1983年 | 11篇 |
1982年 | 9篇 |
1981年 | 10篇 |
1980年 | 8篇 |
1979年 | 16篇 |
1978年 | 10篇 |
1976年 | 10篇 |
1975年 | 10篇 |
1974年 | 6篇 |
1972年 | 3篇 |
1971年 | 3篇 |
1968年 | 4篇 |
1866年 | 3篇 |
排序方式: 共有667条查询结果,搜索用时 15 毫秒
111.
112.
Robert Wells John McCann Joyce Adams Joan Voris Barbara Dahl 《Child abuse & neglect》1997,21(12):1159-1167
Objective: With the rapid rise of sexual abuse allegations, there is a growing need to develop instruments to help clinicians determine the likelihood that sexual abuse has occurred.Method: This study evaluated the discriminant validity of a structured parent interview regarding emotional, behavioral, and physical symptoms by comparing results among three subsamples of age matched boys: 22 sexually abused boys whose perpetrator confessed, 47 boys evaluated in a sexual abuse clinic but without a history of perpetrator confession and 52 nonabused boys selected after rigorous screening.Results: In comparison with the nonabused (NA) boys, the sexually abused boys were significantly more likely to demonstrate sudden emotional and behavioral changes, frequent stomachaches, more knowledge about sex and sexual activities than expected for age, unusual agressiveness toward playmate or toy's private parts, crying easily, difficulty getting to sleep, and a change to poor school performance. The internal reliability of the SASA was determined to be .83 and scoring of an abbreviated 12-item scale demonstrated a sensitivity of 90.9% and a specificity of 88.5%.Conclusions: The findings suggest that Structured Interview of Symptoms Associated with Sexual Abuse (SASA) is an effective tool which may help in the comprehensive assessment of boys who may have been sexually abused. 相似文献
113.
IPv4/IPv6的共存与过渡 总被引:1,自引:0,他引:1
Fred Baker 《中国教育网络》2009,(5):28-29
因特网正面临从传统1Pv4到IPv6的转变以及一段时期的共存。本文是一个技术人员结合IETF的工作对IP和IP网络的发展道路的看法。 相似文献
114.
We analyzed how two basic electromagnetism textooks approach the concept of electric field. We limited our study to the reasons given in these textbooks for the introduction of the field representation and to how accurate, coherent, and complete these reasons are. Because many times historical reasons are intertwined with textbooks' explanations of physical phenomena, we used the historical evolution of the field representation to guide our analysis. The analysis shows that one textbook mixes up the historical and pedagogical reasons for the introduction of the concept of field. The other one presents a sketch that might lead students to understand the field and the action-at-a-distance views as supplementing each other. 相似文献
115.
This article reports on a one-semester Advanced Cell Biology course that endeavors to bridge the gap between gaining basic textbook knowledge about cell biology and learning to think and work as a researcher. The key elements of this course are 1) learning to work with primary articles in order to get acquainted with the field of choice, to learn scientific reasoning, and to identify gaps in our current knowledge that represent opportunities for further research; 2) formulating a research project with fellow students; 3) gaining thorough knowledge of relevant methodology and technologies used within the field of cell biology; 4) developing cooperation and leadership skills; and 5) presenting and defending research projects before a jury of experts. The course activities were student centered and focused on designing a genuine research program. Our 5-yr experience with this course demonstrates that 1) undergraduate students are capable of delivering high-quality research designs that meet professional standards, and 2) the authenticity of the learning environment in this course strongly engages students to become self-directed and critical thinkers. We hope to provide colleagues with an example of a course that encourages and stimulates students to develop essential research thinking skills. 相似文献
116.
The longitudinal contributions of emotion regulation and emotion lability‐negativity to internalizing symptomatology were examined in a low‐income sample (171 maltreated and 151 nonmaltreated children, from age 7 to 10 years). Latent difference score models indicated that for both maltreated and nonmaltreated children, emotion regulation was a mediator between emotion lability‐negativity and internalizing symptomatology, whereas emotion lability‐negativity was not a mediator between emotion regulation and internalizing symptomatology. Early maltreatment was associated with high emotion lability‐negativity (age 7) that contributed to poor emotion regulation (age 8), which in turn was predictive of increases in internalizing symptomatology (from age 8 to 9). The results imply important roles of emotion regulation in the development of internalizing symptomatology, especially for children with high emotion lability‐negativity. 相似文献
117.
Fred J. Hanna 《Counselor Education & Supervision》2012,51(3):222-234
The proposed freedom paradigm is briefly reviewed as an overarching framework that may provide a structure for integrating the counseling profession and counseling theories. Freedom is defined and discussed in terms of four modalities: freedom from, freedom to, freedom with, and freedom for. This is followed by a response to comments on Hanna's (2011) article and addresses such topics as the nature of practice, the value of techniques, hypnotherapy, and the applicability of the paradigm for mental health professionals in general. A further clarification of counseling toward object orientation and internal control is also included. 相似文献
118.
For self-regulated learning to be effective, students need to be able to accurately assess their own performance on a learning task and use this assessment for the selection of a new learning task. Evidence suggests, however, that students have difficulties with accurate self-assessment and task selection, which may explain the poor learning outcomes often found with self-regulated learning. In experiment 1, the hypothesis was investigated and confirmed that observing a human model engaging in self-assessment, task selection, or both could be effective for secondary education students’ (N = 80) acquisition of self-assessment and task-selection skills. Experiment 2 investigated and confirmed the hypothesis that secondary education students’ (N = 90) acquisition of self-assessment and task-selection skills, either through examples or through practice, would enhance the effectiveness of self-regulated learning. It can be concluded that self-assessment and task-selection skills indeed play an important role in self-regulated learning and that training these skills can significantly increase the amount of knowledge students can gain from self-regulated learning in which they choose their own learning tasks. 相似文献
119.
Hubert Booney
Vance Karen K. Prichard Fred H. Wallbrown 《Psychology in the schools》1978,15(3):349-351
This study compared the WISC-R and PPVT scores for a group of 65 students classified as mentally retarded, ranging in age from 7.5 to 14.5. Pearson product moments (r) and correlated t values were employed in the analysis of data. The evidence from the present study indicated that for this sample of mildly retarded children and youth, the PPVT IQ score is significantly higher than the Full Scale IQ from the WISC-R. The current findings indicate that the same general pattern exists for the WISC-R and PPVT as for the WISC and PPVT scores. 相似文献
120.
A depth-of-processing incidental recall task for maternal-referent stimuli was utilized to assess basic memory processes and the affective valence of maternal representations among abused ( N = 63), neglected ( N = 33), and nonmaltreated ( N = 128) school-aged children (ages 8–13.5 years old). Self-reported and observer-rated indices of internalizing symptoms were also assessed. Abused children demonstrated impairments in recall compared to neglected and nonmaltreated children. Although abused, neglected, and nonmaltreated children did not differ in valence of maternal representations, positive and negative maternal schemas related to internalizing symptoms differently among subgroups of maltreated children. Valence of maternal schema was critical in differentiating those with high and low internalizing symptomatology among the neglected children only. Implications for clinical intervention and prevention efforts are underscored. 相似文献