全文获取类型
收费全文 | 854篇 |
免费 | 14篇 |
国内免费 | 4篇 |
专业分类
教育 | 612篇 |
科学研究 | 70篇 |
各国文化 | 6篇 |
体育 | 45篇 |
文化理论 | 8篇 |
信息传播 | 131篇 |
出版年
2022年 | 9篇 |
2021年 | 5篇 |
2020年 | 13篇 |
2019年 | 13篇 |
2018年 | 27篇 |
2017年 | 33篇 |
2016年 | 31篇 |
2015年 | 18篇 |
2014年 | 26篇 |
2013年 | 221篇 |
2012年 | 20篇 |
2011年 | 27篇 |
2010年 | 20篇 |
2009年 | 25篇 |
2008年 | 14篇 |
2007年 | 20篇 |
2006年 | 18篇 |
2005年 | 8篇 |
2004年 | 10篇 |
2003年 | 18篇 |
2002年 | 11篇 |
2001年 | 11篇 |
2000年 | 12篇 |
1999年 | 9篇 |
1998年 | 9篇 |
1997年 | 9篇 |
1996年 | 12篇 |
1995年 | 8篇 |
1994年 | 9篇 |
1993年 | 9篇 |
1992年 | 10篇 |
1991年 | 6篇 |
1990年 | 17篇 |
1989年 | 11篇 |
1988年 | 10篇 |
1987年 | 11篇 |
1986年 | 7篇 |
1985年 | 5篇 |
1984年 | 5篇 |
1982年 | 8篇 |
1981年 | 8篇 |
1980年 | 7篇 |
1979年 | 5篇 |
1978年 | 5篇 |
1976年 | 5篇 |
1974年 | 7篇 |
1973年 | 7篇 |
1935年 | 7篇 |
1934年 | 5篇 |
1932年 | 5篇 |
排序方式: 共有872条查询结果,搜索用时 15 毫秒
61.
Lanier F. Holt Shelly R. Hovick Emma M. Fete Phokeng M. Dailey 《Communication Studies》2017,68(2):227-241
Ethnic identity (EI) has long been known to supersede race as a predictor for attitudes and behaviors. However, little is known about the constituent parts that comprise and influence ethnic identity. In order to improve communications that target EI, we examine both demographic and communication variables to determine which have a greater pull on people’s attitudes and actions. Race appears to moderate the effects of age on ethnic identity, whereby age was negatively related to ethnic-identity exploration among White participants and positively related to ethnic identity commitment among Black participants (p < .05). Having a higher income, print-media use, and information-engagement orientation were also positively correlated with ethnic identity; education and gender were not. Implications and future directions are discussed. 相似文献
62.
Vanessa Otero Joana V. Pinto Leslie Carlyle Márcia Vilarigues Marine Cotte 《文物保护研究》2017,62(3):123-149
The Winsor & NewtonTM (W&N) nineteenth century archive database includes digitised images of hand-written instructions and workshop notes for the manufacture of their artists’ materials. For the first time, all 183 production records for yellow lead chromate pigments were studied and evaluated. They revealed that W&N produced essentially three pigment types: lemon/pale based on mixed crystals of lead chromate and lead sulphate [Pb(Cr,S)O4]; middle on pure monoclinic lead chromate [PbCrO4]; and deep that contains the latter admixed with basic lead chromate [Pb2CrO5]; accounting for 53, 22, and 21% of the production, respectively. Production records for primrose (4%) were also included since the formulation results in mixed crystals with a high percentage of lead sulphate, which, according to the literature, leaves it more prone to degradation. Each pigment type is characterised by only one or two main synthetic pathways; process variations reveal a systematic and thorough search for a high-quality durable product. A comparison of the chemical composition of pigment reconstructions with early W&N oil paint tubes showed that their records entitled ‘pale’ and ‘lemon’ correlated with the pigment in their tube labelled chrome yellow and, ‘middle’ and ‘deep’ with the label chrome deep. Lemon and middle pigment formulations were made into oil paints to assess their relative photo-stability. The degradation process was followed by colorimetry and was studied by synchrotron radiation-based techniques. Based on the X-ray absorption spectroscopy data, the possibility for creating a stability index for chrome yellows is discussed. 相似文献
63.
64.
Jose M. Castillo Jennifer R. Wolgemuth Chris Barclay Amira Mattison Sim Yin Tan Sujay Sabnis Amber Brundage Leslie Marshall 《Psychology in the schools》2016,53(6):641-658
Recent studies indicate that the majority of school psychologists’ time continues to be dedicated to SPED related activities. Despite ongoing calls for school psychologists to expand their roles, why many practitioners do not deliver more comprehensive services is not well understood. This qualitative study investigated facilitators of and barriers to comprehensive and integrated services using the National Association of School Psychologists Model for Comprehensive and Integrated School Psychological Services as the guiding framework. Thirteen full‐time, school‐based practitioners from across the US participated in semi‐structured interviews. Constant‐comparative analysis was used to generate themes. Results indicated that practitioners experienced a number of systemic barriers to (e.g., heavy caseload; inconsistent district policies, priorities, and role definitions; lack of stakeholder involvement) and facilitators of (e.g., resources, graduate training and professional development) comprehensive and integrated service delivery. Participants’ perspectives regarding changes needed to expand their services focused on systemic issues as well. Implications for research and practitioners’ efforts to advocate for systems change are discussed. 相似文献
65.
Yllza Xerxa Leslie A. Rescorla Jan van der Ende Manon H.J. Hillegers Frank C. Verhulst Henning Tiemeier 《Child development》2021,92(1):291-307
Parental psychopathology can affect child functioning, and vice versa. We examined bidirectional associations between parent and offspring psychopathology in 5,536 children and their parents. We asked three questions: (a) are parent-to-child associations stronger than child-to-parent associations? (b) are mother-to-child associations stronger than father-to-child associations? and (c) do within- and between-person effects contribute to bidirectional associations between parent and offspring psychopathology? Our findings suggest that only within-rater bidirectional associations of parent and offspring psychopathology can be consistently detected, with no difference between mothers and fathers. Child psychopathology was hardly associated with parental psychopathology. No evidence for cross-rater child-to-parent associations was found suggesting that the within-rater child-to-parent associations reflect shared method variance. Moreover, within-person change accounted for a part of the variance observed. 相似文献
66.
Stephen H. Chen Xue Fang Deng Emily Zhang Leslie K. Wang Cindy H. Liu 《Child development》2021,92(6):e1126-e1137
A central theme of acculturative specificity is the heterogeneity of the immigrant experience. This study integrated this application of the Specificity Principle with intergenerational transmission models of self-regulation and identified both common and specific pathways in the self-regulatory development of Chinese American children in immigrant families (N = 169, Mage = 9.2 years). Consistent with intergenerational transmission models, results indicated associations between parents’ and children’s effortful control, with the mediation of these associations via authoritarian parenting. Parental education, family income, and children’s bilingual proficiency were also uniquely associated with children’s executive function and effortful control. Together, findings provide new directions for research with ethnic minority immigrant families, and underscore the utility of within-group approaches in advancing research on ethnic minority children’s development. 相似文献
67.
R.S Holt 《Endeavour》1985,9(2):97-105
A non-invasive imaging technique based on the inelastic (Compton) scattering of X- and Gamma radiation has been developed during the past ten years. Applications of this relatively new diagnostic probe range from distinguishing tumours from surrounding tissue to observing microporosity in plastic explosive shells. The present article describes the principle of the method and illustrates the diversity of applications, which are to be found in both medical and industrial fields. 相似文献
68.
This paper analyses accountability and partnership in Initial Teacher Education for the primary school sector in Northern Ireland. In considering teacher education, the paper focuses on three higher education institutions: Stranmillis University College, St Mary's University College and the University of Ulster. Of the three institutions, the Roman Catholic Church maintains St Mary's University College while the other institutions have no religious affiliations. The paper focuses on the reform of teacher education within the British Isles and sets Northern Ireland into a context of a system of teacher education which has developed new patterns of accountability. Three sources of evidence are used to analyse accountability; firstly the perception of schools that are partners in Initial Teacher Education; secondly, the views of the Education and Training Inspectorate who are responsible for accrediting teacher education in Northern Ireland; and thirdly, the views of the three university schools of education. The paper will demonstrate how teacher education in Northern Ireland is simultaneously similar to, and different from, teacher education in the rest of the developed world. It will illuminate the dimensions of accountability in the primary school sector and show how in Northern Ireland this is heavily segregated by religious denomination. 相似文献
69.
Leslie Rutkowski David Rutkowski Yuan-Ling Liaw 《Assessment in Education: Principles, Policy & Practice》2019,26(6):643-664
ABSTRACTModern international studies of educational achievement have grown in terms of participating educational systems. Accompanying this development is an increase in heterogeneity, as more and different kinds of educational systems take part. This growth has been particularly pronounced among low-performing, less economically developed systems. Although studies such as PISA have made modifications to account for increased diversity, the degree to which international assessments serve educational systems at the lower ends of the achievement continuum is understudied. We used modified Wright maps and PISA’s definition of proficiency to evaluate the fitness of PISA, especially among low performers. Our findings suggest that there is mismatch between some populations and PISA. Results from a simulation show that such disparities produced biased achievement estimates and correlations with policy relevant variables. Projected PISA growth and new instantiations of PISA, particularly geared toward developing educational systems, make these findings timely and especially relevant. 相似文献
70.
Leslie Rescorla Marion C. Hyson Kathy Hirsh-Pasek Jessica Cone 《Early education and development》1990,1(3):165-184
This study reports psychometric data on the Educational Attitude Scale, a new instrument designed to tap parental opinions about early academic, artistic, athletic, and social experiences. Mothers of 371 middle class prekindergarten children in 22 different schools completed the 32-item Likert-style survey. Mothers were highly similar in their views about the importance of social experiences, but differed widely in their opinions about early academic instruction for preschoolers. The scale proved to have excellent split-half and test-retest reliability. Correlational analysis and factor analysis supported the general domain structure along which the instrument was designed. Scores on the Educational Attitude Scale were significantly correlated with scores on a Developmental Expectations Card Sort. Highly significant differences were found in parent attitudes on the scale when schools were grouped into those High versus Low in academic emphasis by community reputation and observed classroom practices. Parents had significantly higher academic expectations than their children's teachers, particularly in schools with “Low Academic” emphasis. 相似文献