全文获取类型
收费全文 | 736篇 |
免费 | 32篇 |
专业分类
教育 | 595篇 |
科学研究 | 26篇 |
各国文化 | 13篇 |
体育 | 33篇 |
文化理论 | 2篇 |
信息传播 | 99篇 |
出版年
2023年 | 6篇 |
2022年 | 16篇 |
2021年 | 21篇 |
2020年 | 28篇 |
2019年 | 40篇 |
2018年 | 45篇 |
2017年 | 57篇 |
2016年 | 61篇 |
2015年 | 29篇 |
2014年 | 36篇 |
2013年 | 145篇 |
2012年 | 25篇 |
2011年 | 30篇 |
2010年 | 22篇 |
2009年 | 15篇 |
2008年 | 18篇 |
2007年 | 24篇 |
2006年 | 7篇 |
2005年 | 7篇 |
2004年 | 10篇 |
2003年 | 9篇 |
2002年 | 20篇 |
2001年 | 7篇 |
2000年 | 4篇 |
1999年 | 3篇 |
1998年 | 3篇 |
1997年 | 7篇 |
1996年 | 5篇 |
1995年 | 5篇 |
1994年 | 11篇 |
1993年 | 2篇 |
1992年 | 7篇 |
1991年 | 6篇 |
1990年 | 2篇 |
1987年 | 3篇 |
1985年 | 3篇 |
1983年 | 6篇 |
1982年 | 2篇 |
1981年 | 1篇 |
1980年 | 3篇 |
1979年 | 1篇 |
1978年 | 1篇 |
1975年 | 2篇 |
1974年 | 2篇 |
1973年 | 3篇 |
1971年 | 1篇 |
1969年 | 1篇 |
1966年 | 1篇 |
1956年 | 1篇 |
1955年 | 1篇 |
排序方式: 共有768条查询结果,搜索用时 31 毫秒
231.
232.
Are Gauge Symmetry Transformations Observable? 总被引:1,自引:0,他引:1
Brading Katherine; Brown Harvey R. 《The British journal for the philosophy of science》2004,55(4):645-665
233.
234.
Matt Hawrilenko Katherine E. Masyn Janine Cerutti Erin C. Dunn 《Child development》2021,92(4):e343-e363
Studies of developmental trajectories of depression are important for understanding depression etiology. Existing studies have been limited by short time frames and no studies have explored a key factor: differential patterns of responding to life events. This article introduces a novel analytic technique, growth mixture modeling with structured residuals, to examine the course of youth depression in a large, prospective cohort (N = 11,641, ages 4–16.5, 96% White). Age-specific critical points were identified at ages 8 and 13 where depression symptoms spiked for a minority of children. Most depression risk was due to dynamic responses to environmental events, drawn not from a small pool of persistently depressed children, but a larger pool of children who varied across higher and lower symptom levels. 相似文献
235.
Rates of expulsion from early care and education settings (e.g., childcare and preschool programs) exceed those in K‐12, and relatively little is known of how to prevent such disciplinary decisions. In addition, expulsion disproportionately affects children of color, especially boys. The present study explores a potential protective strategy existent in all early care and education settings, the parent–teacher relationship. Surveys with early childhood teachers (N = 295) outline the association between teachers' perceptions of the parent–teacher relationship and a child's risk for expulsion. Findings indicate that teachers' perceptions of high‐quality parent–teacher relationships are related to a lower risk for expulsion for children who have not been expelled, with the strongest association found for Black children. In contrast, for children identified as previously expelled, we found no association between teachers' perceptions of the parent–teacher relationship and future expulsion risk. Each finding will be described in detail with an eye towards implications and intervention. 相似文献
236.
Katherine Yip 《Asia Pacific Journal of Education》1992,12(2):88-92
The effect of goal structure on motivation and achievement has been well documented in studies conducted amongst children in the west. The present study provides findings from older students aged (12 to 19) belonging to a multi-cultural Asian society. Students (N=1573) responded to a questionnaire designed to identify and evaluate psychological states; results showed that students in this sample expressed affect similar to that experienced by western counterparts given the same reward structure. In the context of this study it is largely competitive; hardly a classroom in Singapore is structured along the lines of a noncompetitive, individualistic model. 相似文献
237.
238.
The present experiment contrasted the recall of gifted and nongifted middle-school children for sets of categorically related items. Subjects were given a single free-recall trial on each of two lists consisting of category-typical and category-atypical words. The typicality of the items for one list was based on each subject's unique typicality ratings, whereas the typicality of the items in the second list was based on adult norms. A preliminary category-rating task indicated that gifted students were somewhat more similar to adults in their ratings of category typicality than nongifted children. Recall was comparable between the gifted and nongifted subjects for typical items, but greater for the gifted subjects for atypical items. The latency between the recall of unrelated words was faster for the gifted than the nongifted children. Subjects were classified as strategic or nonstrategic on the basis of clustering and interitem latencies. Gifted subjects were less apt to be classified as strategic than nongifted subjects on the typical items of the self-generated list; there were no differences in the classification between the gifted and nongifted children for all other contrasts. These results were interpreted as indicating that the cognitive advantage of gifted relative to nongifted children is more apt to be in terms of nonstrategic rather than strategic functioning. 相似文献
239.
M. Francisca del Río Maria Ines Susperreguy Katherine Strasser Viviana Salinas 《Early education and development》2017,28(8):939-955
The current study analyzed maternal and paternal differential influences on numeracy performance in kindergarten children. Participants were 180 Chilean children from backgrounds of low and high socioeconomic status (SES), their mothers, and their fathers. A path analysis was used to explore the influences of both maternal and paternal numeracy practices on children’s numeracy performance and the influences of maternal and paternal expectations and anxiety on those activities. Research Findings: Results showed that mothers and fathers who endorse higher numeracy expectations for their children and who report lower levels of math anxiety also report engaging more frequently in advanced numeracy practices with their children. Mothers’—but not fathers’—engagement in numeracy practices at home predicted children’s numeracy performance. Also, low-SES mothers engaged more frequently in numeracy practices with their children, and mothers in general engaged more often in numeracy activities with girls than with boys. Practice or Policy: These findings improve understanding of how maternal and paternal processes relate differently to numeracy performance in kindergarten children. Moreover, these results highlight the need to take into account parents’ numeracy attitudes and practices, as well as their SES, when designing interventions directed at increasing family support for math achievement. 相似文献
240.
Emotional Determinants of Infant-Mother Attachment 总被引:1,自引:0,他引:1
Carroll E. Izard O. Maurice Haynes Gail Chisholm Katherine Baak 《Child development》1991,62(5):906-917
The present study examined the assumption that emotion-related characteristics of mothers and infants contribute to the development of infant-mother attachment in the first year of life. Mothers' emotion and personality characteristics were assessed with expressive-behavior ratings and self-report scales. Infant characteristics were measured by emotion and temperament questionnaires (mother report) and objective coding of facial expressions of emotions. Attachment classifications were determined by means of the Strange Situation procedure, and a continuous-variable index of attachment security was derived by a discriminant function procedure. Mothers' emotion experiences, expressive behaviors, and personality traits were significant predictors of the level of security of the infant-mother attachment. Infants' expressive and temperamental characteristics as rated by their mothers were also significant predictors of attachment security. 相似文献