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   5927篇
  免费   487篇
  国内免费   21篇
教育   5045篇
科学研究   260篇
各国文化   148篇
体育   273篇
综合类   36篇
文化理论   35篇
信息传播   638篇
  2023年   24篇
  2022年   45篇
  2021年   123篇
  2020年   154篇
  2019年   274篇
  2018年   276篇
  2017年   357篇
  2016年   229篇
  2015年   293篇
  2014年   304篇
  2013年   1453篇
  2012年   258篇
  2011年   278篇
  2010年   297篇
  2009年   217篇
  2008年   268篇
  2007年   218篇
  2006年   196篇
  2005年   157篇
  2004年   135篇
  2003年   93篇
  2002年   83篇
  2001年   79篇
  2000年   77篇
  1999年   58篇
  1998年   45篇
  1997年   34篇
  1996年   37篇
  1995年   44篇
  1994年   32篇
  1993年   29篇
  1992年   28篇
  1991年   24篇
  1990年   35篇
  1989年   14篇
  1988年   18篇
  1987年   19篇
  1986年   16篇
  1985年   21篇
  1984年   19篇
  1983年   17篇
  1982年   14篇
  1981年   6篇
  1980年   4篇
  1979年   4篇
  1978年   6篇
  1977年   5篇
  1974年   4篇
  1973年   3篇
  1969年   2篇
排序方式: 共有6435条查询结果,搜索用时 15 毫秒
81.
Washington & Jefferson College undergraduate Magellan Scholars explore the world on their own. Tori Haring‐Smith describes this unique program and explains why it offers so much more than a traditional study abroad experience.  相似文献   
82.
Predoctoral interns' responses to an internship supervision training questionnaire indicated that counseling center interns supervised more trainees, received more supervision in their supervisory roles, reported more supervision training activities, and yielded higher supervisor development scores than did non‐counseling‐center interns. A qualitative analysis of participants' responses showed that non‐counseling‐center interns desired more supervision training and opportunities to provide supervision during their internship year than did counseling center interns.  相似文献   
83.
Students who engage in challenging behaviour compromise the fundamental ability of schools to educate children. Consequently, teachers face the daunting task of designing effective strategies to promote positive educational outcomes for their students. Since the 1997 Individuals with Disabilities Education Act amendments, the use of positive behaviour supports (PBS) to address the behavioural needs of children challenged by disabilities has expanded. There is evidence to support the utility of PBS in reducing challenging behaviour among students. However, successful schools are also gauged by the academic achievement of their students. Hence, it is important to examine the extent to which behavioural outcomes are related to academic outcomes. The purpose of this paper is to examine the extent to which PBS interventions aimed at reducing challenging behaviour result in corresponding improvement in academic achievement. A meta‐analysis of extant research indicated a positive correlation of 0.40 between improvement in problem behaviour and academic achievement. A video abstract of this article can be viewed at: http://youtu.be/c9OUU0GkGrw .  相似文献   
84.
We revisit the relationship between attendance and performance in the undergraduate university setting and apply agency theory in the instructor–student context. Building on agency theory propositions in the educational setting advanced by Smith, Zsidisin, and Adams (2005) , we propose that the student and instructor must align goals to promote the student's achievement of performance learning outcomes, and attendance functions as a behavior‐based alignment mechanism to encourage the convergence of faculty and student interests. Further, we propose that attendance does not equally affect lower‐ and higher‐performing students and that absences are also negatively related to students' cumulative grade point average. We test these hypotheses with data from undergraduates enrolled in management courses at a state university in the southeast. Our results show that attendance is positively related to exam performance, there are more pronounced negative effects of an absence for lower‐performing students than for higher performers, and absences are negatively related to a student's cumulative grade point average. We discuss the implications of our findings for students, instructors, and universities as well as practice in teaching and learning.  相似文献   
85.
乌兰察布地区胡萝卜优化施肥方案初步研究   总被引:1,自引:0,他引:1  
本试验通过正交旋转回归设计在乌兰察布地区选取氮、磷、钾和有机肥为参试变量,以胡萝卜产量为目标函数,建立了胡萝卜产量与参试因子间的数学模型,得出了各变量与产量的主次关系及各因素对产量的效应。最后,通过模拟寻优获得了本试验地条件下胡萝卜产量高于6000kg/667m2的施肥方案:N(8.06-8.72kg/667m2)、P2O5(3.89-4.26kg/667m2)、K2O(19.10-20.45kg/667m2)、有机肥(6346-6907kg/667m2)。  相似文献   
86.
ABSTRACT

A successful transition from preschool to school demands continuity in education between the institutions: continuity in pedagogy, values and institutional structures. One way to achieve continuity is to learn how to do boundary work in the borderline of two activity systems. This article examines what kinds of discourses frame the problem-solving process in the context of inter-professional collaboration. The data consists of video-recorded, inter-professional discussions in the 2012–2013 (a total of 22.5?h). The project, called Flexible Preschool and School, aims to develop a new model for a smooth transition to school. In the project, professionals from preschool and school create joint activities and co-teaching, which is assumed to bridge the gap between pedagogies and assure the continuity of learning. The professionals’ cultural thoughts in different kinds of problem-solving situations become visible in the discourses produced in the talk. These discourses describe their capacity for solving shared problems. Creating new innovations demands an understanding that complex problems require diverse knowledge. Considering the shared knowledge as valuable enough to put into practice is the way to create new forms of problem-solving. This is implemented by taking on the responsibility to be an active actor.  相似文献   
87.
Applicant pools for principal vacancies are shrinking nationwide. This shortage of job applicants requires school districts to evaluate their internal pools of principal certified personnel. In this study, 194 certified individuals from a large school district responded to a survey measuring attraction to the job of principal, current job satisfaction versus expected satisfaction in the job of principal, barriers to pursuing the job, and recommended changes in the job. Few participants intended to apply for principal vacancies due to age (median=51), lack of self-reported capability to do the job, and satisfaction with the current job. Participants perceived their job satisfaction would decrease on assuming the job of principal relative to factors such as time with family and job security, and increase relative to factors such as salary and opportunity to experience varied activities. Implications for principal recruitment and recommendations for restructuring the job are discussed.  相似文献   
88.
Thirty‐six children with cerebral palsy, aged 3.5 to 4.5 years were compared on their skills for independence. Of the 36 boys and girls, 19 children were enrolled in a Conductive Education Program in Birmingham and 17 were enrolled in British special education programs in the Greater Manchester area. Skills for independence were measured with the Vineland Adaptive Behavior Scales via teachers’ responses, once a year on three occasions. Parents were interviewed using the Developmental Profile 2, once a year on three occasions. The results of two‐way ANOVA with one repeated measure on both teachers’ and parents’ responses indicate that there was no significant difference between the two groups in their skills for independence. However, both groups performed significantly better as they were getting older. Despite the strong emphasis on independence in Conductive Education, the children's level of independence was no different from their counterparts. Thus, the claim for the effectiveness of Conductive Education is not supported by the study.  相似文献   
89.
顾颉刚先生追求的“为学术而学术”道路,不仅体现在他学术研究中有一种勇于开拓创新的精神,一种锲而不舍的韧性,而且体现在他组织禹贡学会,辛勤地培养青年学子的活动中;而这种追求之所以受到阻碍,使顾颉刚深入彷徨,苦闷,就在于受到“经世致用”思想和“左”倾的阶级斗争理论以及传统意识形态等对学术研究的消极影响。  相似文献   
90.
This study evaluated the classification accuracy of a second grade oral reading fluency curriculum‐based measure (R‐CBM) in predicting third grade state test performance. It also compared the long‐term classification accuracy of local and publisher‐recommended R‐CBM cut scores. Participants were 266 students who were divided into a calibration sample (n = 170) and two cross‐validation samples (n = 46; n = 50), respectively. Using calibration sample data, local fall, winter, and spring R‐CBM cut scores for predicting students’ state test performance were developed using three methods: discriminant analysis (DA), logistic regression (LR), and receiver operating characteristic curve analysis (ROC). The classification accuracy of local and publisher‐recommended cut scores was evaluated across subsamples. Only DA and ROC produced cut scores that maintained adequate sensitivity (≥.70) across cohorts; however, LR and publisher‐recommended scores had higher levels of specificity and overall correct classification. Implications for developing local cut scores are discussed.  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