全文获取类型
收费全文 | 13965篇 |
免费 | 185篇 |
国内免费 | 21篇 |
专业分类
教育 | 9754篇 |
科学研究 | 1545篇 |
各国文化 | 143篇 |
体育 | 1184篇 |
综合类 | 6篇 |
文化理论 | 107篇 |
信息传播 | 1432篇 |
出版年
2021年 | 140篇 |
2020年 | 210篇 |
2019年 | 284篇 |
2018年 | 387篇 |
2017年 | 373篇 |
2016年 | 377篇 |
2015年 | 253篇 |
2014年 | 333篇 |
2013年 | 2430篇 |
2012年 | 303篇 |
2011年 | 327篇 |
2010年 | 284篇 |
2009年 | 230篇 |
2008年 | 278篇 |
2007年 | 249篇 |
2006年 | 238篇 |
2005年 | 209篇 |
2004年 | 243篇 |
2003年 | 208篇 |
2002年 | 188篇 |
2001年 | 450篇 |
2000年 | 298篇 |
1999年 | 260篇 |
1998年 | 123篇 |
1997年 | 157篇 |
1996年 | 141篇 |
1995年 | 126篇 |
1994年 | 152篇 |
1993年 | 115篇 |
1992年 | 189篇 |
1991年 | 194篇 |
1990年 | 198篇 |
1989年 | 206篇 |
1988年 | 169篇 |
1987年 | 166篇 |
1986年 | 170篇 |
1985年 | 210篇 |
1984年 | 165篇 |
1983年 | 153篇 |
1982年 | 137篇 |
1981年 | 125篇 |
1980年 | 123篇 |
1979年 | 169篇 |
1978年 | 137篇 |
1977年 | 119篇 |
1976年 | 95篇 |
1975年 | 116篇 |
1974年 | 103篇 |
1973年 | 110篇 |
1971年 | 101篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
81.
OBJECTIVE: A model was examined in which the association between a parent's history of abuse and the parent's own abusive behavior toward his or her children was hypothesized to be mediated by parental psychopathology, early childbearing, and consistency of discipline. Additionally, the effect of severity of abuse on the likelihood of becoming abusive was examined. METHOD: Participants were 109 parents (G1) and their male children (G2) who were involved in a longitudinal study. The G1 parents reported on their own experiences of abuse when they were children. Ten years later, the G2 youths reported on the G1 parents' abusive behavior toward them. A number of other factors, including parental socioeconomic status (SES), antisocial behavior, depression and Post-traumatic Stress Disorder (PTSD), consistency of discipline, and the perceived early difficulty of the G2 children were measured. RESULTS: As reported by their own children, parents who reported having been abused in childhood were significantly more likely to engage in abusive behaviors toward the next generation. Findings indicated that abuse experienced by the parents, as well as consistency of discipline and depression plus PTSD, were predictive of parental abuse of the child. Contrary to hypotheses, the effects were not fully mediated. However, there were significant interactions between parental history of abuse and consistency of discipline, as well as abuse history and depression and PTSD. Parents who had experienced multiple acts of abuse and at least one physical impact were more likely to become abusive than were the other parents. CONCLUSIONS: The implications of these findings for preventive interventions are discussed. 相似文献
82.
ABSTRACTThis article explores one group’s use of action research (AR) and lesson study in three US university-level computer science courses affecting 85 undergraduate computer science and engineering students. It offers an overview of three areas including AR, lesson study, and engineering soft skills. The research group identified a problem: undergraduate engineering student soft skill understanding. The group collaborated to enhance participant engagement with this problem by utilizing one lesson focused on soft skills over three research lesson iterations in three distinct university semesters (2017-2018). Field notes were the main data collection method. Observational field notes were recorded in the three research lesson iterations, and themes from the notes were identified. The group valued peer interactions, and the research lesson adaptations as well as pedagogical changes were based on evidence. Four themes were identified, and participant comments were considered as the lessons became more focused . The research group argues that AR and lesson study are separate and distinct ventures based on this yearlong experience, which is counter to some other literature presented. Implications are large for all stakeholders interested in AR, lesson study, soft skill utilization, conflict management, and participant learning impact. Possibilities for enhanced participant engagement exists with honed lesson pedagogy. 相似文献
83.
Yuen Mantak Chung Y. B. Lee Queenie A. Y. Lau Patrick S. Y. Chan Raymond M. C. Gysbers Norman C. Shea Peter M. K. 《International Journal for Educational and Vocational Guidance》2020,20(3):653-676
International Journal for Educational and Vocational Guidance - This study provides insights into how Chinese adolescents in Hong Kong interpret the concept of “meaning in life.” Data... 相似文献
84.
Instructional Science - Engaging in engineering tasks can help students learn science concepts. However, many engineering tasks lead students to focus more on the success of their construction than... 相似文献
85.
Magdalena M. Apanasionok Richard P. Hastings Corinna F. Grindle Richard C. Watkins Andreas Paris 《科学教学研究杂志》2019,56(7):847-880
A comprehensive review of the literature was conducted to identify current practice on teaching science to students with intellectual disability (ID) and/or Autism Spectrum Disorder (ASD) in relation to two review questions—students' science outcomes and students' and teachers' experiences of the interventions. Six databases related to education, psychology, and science were systematically searched. A detailed protocol can be viewed on PROSPERO (registration number: CRD42017057323). Thirty studies were identified that reported on science interventions and 20 on student/teacher experiences of the interventions. The majority of the studies targeted science vocabulary and concepts. Other targets included inquiry skills and comprehension skills. The majority of the interventions used components of systematic instruction (n = 23). Five studies focused on self-directed learning and two on comprehension-based instruction. Students and teachers reported positive experiences of the interventions. The findings suggest that components of systematic instruction in particular might be effective in teaching science content to students with ID and/or ASD. Further research is needed to explore the effectiveness of identified interventions on teaching more complex science skills and with students with severe disabilities. Some limitations related to the search strategy are highlighted. 相似文献
86.
The purpose of this critical analysis was to investigate the young children’s sense of numerical magnitudes and the important attributes of classrooms where children in kindergarten and first grade are exposed to mathematics. This study aimed to offer guidelines that will assist teachers as they teach mathematics to children between the ages of five and seven. 相似文献
87.
88.
This study informs public policies regarding the use of subsidized loans as financial aid for community college students.
Using logistic regression, it analyzes the National Center for Education Statistics’ Beginning Postsecondary Students (BPS
90/94) data to predict persistence to the second year of college and associate’s degree attainment over five years. During
the period under study, loans did not contribute to higher persistence and attainment rates. Loans are observed to have a
negative effect on persistence and no effect on degree attainment. Estimates of the interaction effects of borrowing and income
status are insignificant but demonstrate the need for further testing. The findings are attributed to a combination of the
high uncertainty of degree completion among community college students and the negative affective component of indebtedness.
Earlier versions of this paper were presented at the American Education Finance Association Annual Meeting (Austin, Texas,
March, 2000) and at the AIR Forum (Cincinnati, Ohio, May 2000). It has also appeared as a working paper of the Institute for
Higher Education Law and Governance at the University of Houston, Texas (IHELG Monograph 01–07).This paper is based upon work
supported by the Association for Institutional Research, the National Center for Education Statistics and the National Science
Foundation under Association for Institutional Research Grant No. 99-128-0. 相似文献
89.
Daniel C. Kopala-Sibley Marilyn Cyr Megan C. Finsaas Jonathan Orawe Anna Huang Nim Tottenham Daniel N. Klein 《Child development》2020,91(1):110-128
Seventy-nine 3-year olds and their mothers participated in a laboratory-based task to assess maternal hostility. Mothers also reported their behavioral regulation of their child. Seven years later, functional magnetic resonance imaging data were acquired while viewing emotional faces and completing a reward processing task. Maternal hostility predicted more negative amygdala connectivity during exposure to sad relative to neutral faces with frontal and parietal regions as well as more negative left ventral striatal connectivity during monetary gain relative to loss feedback with the right posterior orbital frontal cortex and right inferior frontal gyrus. In contrast, maternal regulation predicted enhanced cingulo-frontal connectivity during monetary gain relative to loss feedback. Results suggest parenting is associated with alterations in emotion and reward processing circuitry 7–8 years later. 相似文献
90.
AbstractTo explore the movement toward increased complex systems (CS) research in education, this special issue of the Journal of Experimental Education was developed to identify some under-examined places where CS approaches have advanced research. The articles provide empirical examples of research leveraging methods and analyses from complexity science. In this introduction article to the special issue, we discuss the authors’ contributions to defining and explicating concepts and methods that fall under the umbrella of CS perspectives and how these methods were used to investigate complex processes in their topics of study. The articles capture the goal of the special issue to demonstrate how the research questions framed by CS assumptions can change our expectations about the very nature of the processes under study in education. We then take a more global perspective and acknowledge the commonalities amongst the papers, including (a) the reliance on intensive data to answer research questions, and (b) the use of dynamic approaches that yield findings about the stability and change of these systems and phenomena. 相似文献