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   2842篇
  免费   54篇
  国内免费   3篇
教育   2238篇
科学研究   124篇
各国文化   31篇
体育   144篇
综合类   2篇
文化理论   15篇
信息传播   345篇
  2023年   16篇
  2022年   24篇
  2021年   34篇
  2020年   55篇
  2019年   104篇
  2018年   122篇
  2017年   125篇
  2016年   123篇
  2015年   54篇
  2014年   110篇
  2013年   635篇
  2012年   75篇
  2011年   88篇
  2010年   53篇
  2009年   63篇
  2008年   112篇
  2007年   77篇
  2006年   79篇
  2005年   55篇
  2004年   65篇
  2003年   55篇
  2002年   37篇
  2001年   36篇
  2000年   48篇
  1999年   42篇
  1998年   32篇
  1997年   35篇
  1996年   40篇
  1995年   41篇
  1994年   45篇
  1993年   28篇
  1992年   36篇
  1991年   21篇
  1990年   26篇
  1989年   20篇
  1988年   16篇
  1987年   12篇
  1986年   13篇
  1985年   16篇
  1984年   21篇
  1983年   16篇
  1982年   18篇
  1981年   20篇
  1980年   14篇
  1978年   10篇
  1976年   8篇
  1975年   10篇
  1970年   6篇
  1927年   6篇
  1923年   6篇
排序方式: 共有2899条查询结果,搜索用时 15 毫秒
21.
In this interview, conducted via email during August 2016, Dr. Arlene G. Taylor discusses her career as a cataloger, professor of cataloging and classification, and her work in professional associations. Topics include her early cataloging and teaching experiences, changes in both cataloging practice and the teaching of cataloging, subject analysis, and “aboutness” as compared with form/genre access, professional experiences outside the United States, and the future of MLIS programs.  相似文献   
22.
The purpose of this study was to examine the relationship between dynamic hip rotational range of motion and upper extremity kinematics during baseball pitching. Thirty-one youth baseball pitchers (10.87 ± 0.92 years; 150.03 ± 5.48 cm; 44.83 ± 8.04 kg) participated. A strong correlation was found between stance hip rotation and scapular upward rotation at maximum shoulder external rotation (r = 0.531, = 0.002) and at ball release (r = 0.536, = 0.002). No statistically significant correlations were found between dynamic hip rotational range of motion and passive hip range of motion. Hip range of motion deficits can constrain pelvis rotation and limit energy generation in the lower extremities. Shoulder pathomechanics can then develop as greater responsibility is placed on the shoulder to generate the energy lost from the proximal segments, increasing risk of upper extremity injury. Additionally, it appears that passive seated measurements of hip range of motion may not accurately reflect the dynamic range of motion of the hips through the progression of the pitch cycle.  相似文献   
23.

Objectives

This study describes the literature of hospital pharmacy and identifies the journals most commonly cited by authors in the field, the publication types most frequently cited, the age of citations, and the indexing access to core journals. The study also looks at differing citation practices between journals with a wide audience compared to a national journal with a focus on regional issues and trends in the field.

Method

Cited references from five discipline-specific source journals were collected and analyzed for publication type and age. Two sets were created for comparison. Bradford''s Law of Scattering was applied to both sets to determine the most frequently cited journals.

Results

Three-quarters of all cited items were published within the last 10 years (71%), and journal articles were the most heavily cited publication type (n=65,760, 87%). Citation analysis revealed 26 journal titles in Zone 1, 177 journal titles in Zone 2, and the remaining were scattered across 3,886 titles. Analysis of a national journal revealed Zone 1 comprised 9 titles. Comparison of the 2 sets revealed that Zone 1 titles overlapped, with the exception of 2 titles that were geographically focused in the national title.

Conclusion

Hospital pharmacy literature draws heavily from its own discipline-specific sources but equally from core general and specialty medical journals. Indexing of cited journals is complete in PubMed and EMBASE but lacking in International Pharmaceutical Abstracts. Gray literature is a significant information source in the field.  相似文献   
24.
Academic libraries are one of the most important sources of “on the job” training for future library instructors. Librarians who supervise and assess these future library instructors (often in graduate assistant positions) often choose to provide observations and feedback each semester to these instructors in training. Scholarly literature, however, provides little information on whether this system helps graduate assistants to develop as teachers. The authors of this article assessed graduate assistants’ performance as teachers over three semesters using a system of observation and self-assessment. They analyzed both patterns and areas of growth and discuss the strengths and weaknesses of this system.  相似文献   
25.
ABSTRACT

Blended learning has been a feature of higher education practice and research for almost two decades. This article takes stock of current blended learning research, contributing to the growing number of meta-analyses of higher education and blended learning research more generally, through a review of ninety-seven articles relating to blended learning in higher education published in fifteen journals between 2012 and mid-2017. The review focused on where and when the articles were published; their provenance, scale, scope; methodological approach; the broad research themes; and definition of blended learning used. The review shows that despite its ubiquity, blended learning’s definition is all-encompassing; its spread is global but research is dominated by key players; it is of technical interest; and its research is small-scale, individually focused, seeking to evidence the benefits of blended learning. The article concludes with recommendations of how higher education research could provide institutions with evidence to ensure their ‘best of blends’.  相似文献   
26.
OBJECTIVES: This study examines an expanded version of Belsky's (1984) multi-dimensional process model of parenting to determine whether changes in stress and support influence maternal attitudes during the first year of a child's life. METHOD: Data were collected from mothers of newborns eligible for Hawaii's Healthy Start program who had been randomly assigned to home visitation (n=108) or control (n=104) status. Multiple regression analyses were used to test hypotheses regarding the influence of change in contextual sources of support and stress on parenting attitudes as measured by the Child Abuse Potential Inventory (CAPI) Abuse Scale. A post hoc analysis of variance was conducted to explore interactions among the predictor variables and home visitation. RESULTS: Stress in the form of change in public assistance status led to more punitive parenting attitudes while increased support from the partner and from close associates emerged as significant predictors of less punitive parental attitudes. The exploratory analyses suggest that home visitation may moderate the impacts of stress and support on maternal attitudes. CONCLUSIONS: In line with Belsky's (1984) process model of parenting, increased stress adversely impacted maternal attitudes regarding physical punishment while increased support exerted favorable effects. The results also support further elaboration of Belsky's model including the expansion of marital support to include unmarried partners and the need to consider the impact of formal support sources on parenting.  相似文献   
27.
28.
29.
This paper describes an ongoing process of participatory curriculum development. It outlines some of the tensions which need to be explored in science curriculum development: debates about the nature of science, of society, of school science content and of learning theories. The process whereby action can arise from this debate is also explored. An example will be outlined of a network of science curriculum action which has developed from the work of a range of science education projects in Natal, South Africa. Specializations: science curriculum development from primary to tertiary level. Specializations: inservice primary science teacher development. Specializations: inservice teacher development, biology education. Specializations: environmental education, teacher development. Specializations: environmental education, teacher development.  相似文献   
30.
Bridge-building activities are practiced widely in the education systems of Europe. They are meant to bridge transitions between lower and upper secondary school and form a mandatory part of the youth guidance system in Denmark. By giving pupils the opportunity to experience the different educational context of upper secondary school, bridge-building activities are meant to facilitate their decision-making on educational paths, but also to attract more and new groups of pupils. However, the premises of the inherent differences of educational contexts and of pupils’ lacking knowledge of upper secondary education can be questioned. In this ethnographic case study of a bridge-building project in a rural area in Denmark, we analyse the implicit knowledge of the general upper secondary school, as it is practiced in a bridge-building project, and how it is experienced by the pupils on the background of their prior knowledge. The analysis is theoretically informed by especially the code concepts of Basil Bernstein.  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