首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   6731篇
  免费   80篇
  国内免费   12篇
教育   4846篇
科学研究   508篇
各国文化   139篇
体育   585篇
综合类   3篇
文化理论   71篇
信息传播   671篇
  2022年   39篇
  2021年   60篇
  2020年   109篇
  2019年   189篇
  2018年   222篇
  2017年   226篇
  2016年   236篇
  2015年   157篇
  2014年   181篇
  2013年   1631篇
  2012年   149篇
  2011年   165篇
  2010年   155篇
  2009年   147篇
  2008年   167篇
  2007年   152篇
  2006年   124篇
  2005年   137篇
  2004年   136篇
  2003年   105篇
  2002年   130篇
  2001年   85篇
  2000年   88篇
  1999年   91篇
  1998年   55篇
  1997年   77篇
  1996年   66篇
  1995年   73篇
  1994年   67篇
  1993年   51篇
  1992年   72篇
  1991年   86篇
  1990年   67篇
  1989年   61篇
  1988年   48篇
  1987年   69篇
  1986年   54篇
  1985年   68篇
  1984年   72篇
  1983年   71篇
  1982年   58篇
  1981年   56篇
  1980年   42篇
  1979年   57篇
  1978年   68篇
  1977年   52篇
  1976年   38篇
  1975年   42篇
  1974年   28篇
  1973年   33篇
排序方式: 共有6823条查询结果,搜索用时 0 毫秒
91.
This paper considers whether student motivation might be impacted by the replacement of a straight (A, B, C, D, F) grading system with a plus/minus system (A, A?, B+ … D?, F). The data that are examined are from several undergraduate economics classes at a mid‐sized midwestern university in the United States. The data includes student characteristics, student performance and students’ choices of either a plus/minus or a straight grading system. In this admittedly small‐scale study students, who chose plus/minus grading, were not significantly more motivated than students who opted for straight grading.  相似文献   
92.
93.
Interviews with 150 Palestinian mothers and their children living amidst the Intifada in the West Bank were conducted to assess exposure to political violence and family negativity as risk factors associated with behavioral problems as measured by the Child Behavior Checklist. The number of risks present in the child's life was significantly correlated with the number of behavioral problems the child exhibited ( R = .53, p < .001). The analysis further examined the role of gender, age, and community context in moderating the impact of high levels of accumulated risk on children's behavioral problems. Under conditions of high accumulated risk, boys evidenced more problems than girls, and younger children exhibited more problems than older children. Community context (as indicated by a high or low level of political violence) was a significant factor for girls but not for boys.  相似文献   
94.
Fourteen behavioral measures were ranked according to their ability to differentiate performances of a wild population of mice from three domestic inbred strains. These “wildness” rankings were then analyzed for their ability to predict genetic and Genotype by Environment interactions. Genetic parameters were derived from analysis of three inbred domestic strains and their three hybrid crosses via the diallel technique of genetic analysis. Genotype by Environment interactions were assessed both as mean differences in stock performances resulting from rearing in a laboratory vs naturalistic environment and as differences in environmental variability within stock genotypes. Behavioral characters ranking high on “wildness” failed to demonstrate any unitary pattern of Genotype by Environment interactions. The diallel genetic analysis revealed many examples of additive variation but relatively few examples of dominant variation. An extremely wide range of interactions occurred between genotype and rearing environments, with “wildness” and “developmental homeostasis” concepts both failing to account for all the observed interactions.  相似文献   
95.
96.
ABSTRACT

This article argues that the history of mass education as it was written in Great Britain between 1870 and 1914 became an important site for debating what it meant to be British and the nature of progress. In particular, it explores different perspectives on when and where to begin a history of mass education, whom or what to make central to it, and what guidance the past offered for the future. Disagreements over these seemingly narrow questions reflected broader disagreements about what it meant to be British (including whether there was a deep-seated national character at all); the nature of the union; and how and why progress happened.  相似文献   
97.
Cindy L. James   《Assessing Writing》2006,11(3):167-178
How do scores from writing samples generated by computerized essay scorers compare to those generated by “untrained” human scorers and what combination of scores, if any, is more accurate at placing students in composition courses? This study endeavored to answer this two-part question by evaluating the correspondence between writing sample scores generated by the IntelliMetric™ automated scoring system and scores generated by University Preparation English faculty, as well as examining the predictive validity of both the automated and human scores. The results revealed significant correlations between the faculty scores and the IntelliMetric™ scores of the ACCUPLACEROnLine WritePlacer Plus test. Moreover, logistic regression models that utilized the IntelliMetric™ scores and average faculty scores were more accurate at placing students (77% overall correct placement rate) than were models incorporating only the average faculty score or the IntelliMetric™ scores.  相似文献   
98.
Worldwide there has been a range of initiatives in the area of standards for teachers as part of a discourse of professionalism. In Australia there are a plethora of standards: state and territory frameworks, generic and subject‐specific, systemic and cross‐systemic, for pre‐service, beginning and experienced teachers. Little has been written as to how teacher education programs are responding to the standards agenda. This paper positions standards as integral to the recontextualizing field (Bernstein, 2000 Bernstein B 2000 Pedagogy, symbolic control and identity: theory, research, critique (Lanham, Rowman & Littlefield)  [Google Scholar]) for teacher educators and their programs. Using Bernsteinian concepts of fields, identities and framing, we compare the responses of two physical education teacher education programs to their state's standards imperatives. The authors conclude that the academic orientation of the university, together with the framing of the standards, affect the degree of programmatic change it will undertake in response to the changes in teacher certification standards.  相似文献   
99.
The current research aimed to increase understanding of the experiences of young people and their parents of managed moves, what contributed to success and the nature of the challenges experienced. The study was conducted in one English Local Authority, where five young people and their parents were interviewed. Five superordinate themes emerged from the interviews, relating to: the initial process (people, trail period, managed moves as a positive solution); the reasons for the move (bullying/social isolation, breakdown in relationships with staff); conceptions of success (happiness, improved self-perceptions, learning and progress), factors contributing to success (fresh start/clean slate; home–school communication; pastoral support, school suitability) and problems arising (moving a problem, narratives around young people, timing and family stress). The findings are discussed in relation to implications for practice.  相似文献   
100.
McQueen A  Getz JG  Bray JH 《Child development》2003,74(6):1737-1750
This longitudinal study examined how separation and family conflict mediated the effects of two acculturation variables (English language use and generational status) on substance use (alcohol, tobacco, and marijuana use) and deviant behavior outcomes in a Mexican American high school age sample. Structural equation modeling indicated that separation was a significant mediator of the relationship between acculturation and alcohol use, tobacco use, and deviant behavior. Family conflict mediated the effects of acculturation on marijuana use and deviant behavior. Model comparisons across gender groups suggested that generational status was an influential acculturation measure for females but not males. Additionally, English language use maintained a direct effect on marijuana use among females, whereas this relationship was mediated by separation for males.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号