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   603篇
  免费   10篇
教育   438篇
科学研究   36篇
各国文化   6篇
体育   62篇
文化理论   11篇
信息传播   60篇
  2022年   7篇
  2021年   8篇
  2020年   6篇
  2019年   19篇
  2018年   17篇
  2017年   18篇
  2016年   19篇
  2015年   19篇
  2014年   20篇
  2013年   61篇
  2012年   21篇
  2011年   18篇
  2010年   21篇
  2009年   19篇
  2008年   21篇
  2007年   18篇
  2006年   17篇
  2005年   12篇
  2004年   23篇
  2003年   15篇
  2002年   10篇
  2001年   21篇
  2000年   13篇
  1999年   14篇
  1998年   11篇
  1997年   7篇
  1996年   6篇
  1993年   7篇
  1992年   9篇
  1991年   6篇
  1990年   3篇
  1989年   10篇
  1988年   5篇
  1987年   9篇
  1986年   7篇
  1985年   5篇
  1984年   3篇
  1983年   6篇
  1982年   4篇
  1980年   4篇
  1978年   8篇
  1977年   5篇
  1976年   5篇
  1973年   5篇
  1972年   3篇
  1962年   4篇
  1957年   3篇
  1956年   3篇
  1955年   4篇
  1954年   4篇
排序方式: 共有613条查询结果,搜索用时 15 毫秒
131.
The national media converged on Baltimore, Charleston, and Ferguson, Missouri, in 2014 and 2015 to cover protests in response to police violence toward African American males. Although national and local media covered the events and the aftermath, alternative media sought to provide additional viewpoints and spur readers to respond. This study analyzed the practices, content, and public discourse connected to alternative weekly newspapers in Baltimore, Charleston, and St. Louis. The study examined whether the publications reflected ideal roles of alternative media, including representing different viewpoints, using non-traditional methods of content, and providing a space for the public to challenge systems of power and oppression. The authors also studied the online forums associated with all three publications, including each organization’s website and Facebook page, as potential spaces for alternative publics to emerge around a shared interest in collective action. The publications showed some characteristics of the ideal form of alternative media, but most lacked the diverse voices and critical calls to action needed to represent the normative standard. The discourse the news organizations spurred also fell short of the ideal. The forums lacked rational and critical engagement, and commenters largely failed to promote sincere attempts to engage in community conversation.  相似文献   
132.
International collaboration in science and the formation of a core group   总被引:3,自引:0,他引:3  
International collaboration as measured by co-authorship relations on refereed papers grew linearly from 1990 to 2005 in terms of the number of papers, but exponentially in terms of the number of international addresses. This confirms Persson et al.'s [Persson, O., Glänzel, W., & Danell, R. (2004). Inflationary bibliometrics values: The role of scientific collaboration and the need for relative indicators in evaluative studies. Scientometrics, 60(3), 421–432] hypothesis of an inflation in international collaboration. Patterns in international collaboration in science can be considered as network effects, since there is no political institution mediating relationships at that level except for the initiatives of the European Commission. Science at the international level shares features with other complex adaptive systems whose order arises from the interactions of hundreds of agents pursuing self-interested strategies. During the period 2000–2005, the network of global collaborations appears to have reinforced the formation of a core group of fourteen most cooperative countries. This core group can be expected to use knowledge from the global network with great efficiency, since these countries have strong national systems. Countries at the periphery may be disadvantaged by the increased strength of the core.  相似文献   
133.
Childcare Policy in Germany: Scope for Demand side Subsidies German day care policy is a perfect example of the provision of social services in a neocorporatist fashion. Day care centers are primarily financed from the local community budget. From this budget, the community runs public day care centers or subsidies Non-Profit Organizations which provide day care for children. In established negotiations on the community level, representatives of the NPOs and the public providers decide on the supply of slots in day care centers. In this paper, we argue that this particular mode of financing and monitoring children’s day care has contributed to a rather conservative childcare policy in Germany. Being dependent on the very restricted local budget, communities are confined to conduct a daycare policy, which solely offers a minimum provision of public day care. We suggest a radical reform of German day care policy. Instead of the subsiding public institutions and NPOs, we suggest to support the use of day care by demand side subsides. In this context, we describe some features of a child care voucher model in Germany.  相似文献   
134.
It is now possible to create individual-specific genetic scores, called genome-wide polygenic scores (GPS). We used a GPS for years of education (EduYears) to predict reading performance assessed at UK National Curriculum Key Stages 1 (age 7), 2 (age 12) and 3 (age 14) and on reading tests administered at ages 7 and 12 in a UK sample of 5,825 unrelated individuals. EduYears GPS accounts for up to 5% of the variance in reading performance at age 14. GPS predictions remained significant after accounting for general cognitive ability and family socioeconomic status. Reading performance of children in the lowest and highest 12.5% of the EduYears GPS distribution differed by a mean growth in reading ability of approximately two school years. It seems certain that polygenic scores will be used to predict strengths and weaknesses in education.  相似文献   
135.
This study investigates the American presence and influences in the physical education press to understand the way in which that presence influenced and contributed to the production of a sports culture in the first half of the twentieth century. As historical sources, the study uses periodicals in the field that were published in the period 1932–1950. As a theoretical frame of reference, it uses the repertoire of the New Cultural History in terms of strategy, tactics and devices. It is written in a narrative way, following Ginzburg's style, presenting data and contextualizing them with the historic scene. Clues enabled us to infer that the American presence, which was catalysed by the Brazilian Young Men's Christian Association (YMCA), sought to shape a sports culture from physical education and society. This effort reflected the yearning of Brazilian intellectuals for modernisation and an attempt at cultural colonisation by the government of the USA.  相似文献   
136.
Elevation gain (EG) is a significant contributor to the total workload in many endurance sports. Hence, the aim of this study was to evaluate the accuracy of elevation recording as assessed by popular sport watches. Eighteen participants walked and ran at different speeds in various weather conditions in two terrain types: on a hilly 2490 m course with a total EG of 90 m and on a flat 1200 m outdoor track with 0 m EG. In total, 180 recordings from each sport watch were analyzed and compared according to two processing types: filtered and unfiltered EG data. Compared to the reference values, regarding default settings, on hilly terrain, EG was underestimated by ?3.3 to ?9.8 %, and on flat terrain, EG was overestimated by 0.0–4.8 m per 1200 m. These errors could be reduced to ?3.3 to +0.4 %, when filtering conditions were adjusted according to the terrain. Gait speed (ranging from 1.47 to 4.89 m s?1) or fluctuations in weather conditions between- or within-trials did not influence EG accuracy. A straightforward comparison between manufacturers is hampered as the filter conditions set by default differ. In conclusion, all devices measure EG adequately; however, the displayed default feedback on EG data is not always the most accurate measurement. Consequently, accuracy in elevation recordings could be increased if users appropriately post-process EG data.  相似文献   
137.
A core assumption of response to instruction or intervention (RTI) models is the importance of measuring growth in achievement over time in response to effective instruction or intervention. Many RTI models actively monitor growth for identifying individuals who need different levels of intervention. A large-scale (N=23,438), two-year longitudinal study of first grade children was carried out to compare the predictive validity of measures of achievement status, growth in achievement, and their combination for predicting future reading achievement. The results indicate that under typical conditions, measures of growth do not make a contribution to prediction that is independent of measures of achievement status. These results question the validity of a core assumption of RTI models.  相似文献   
138.
Learning theories are essential for effective teaching in that they shed light on different aspects of the learning process. The spectrum of learning theories can be categorized into three main areas: behaviorism, cognitivism, and constructivism. Behaviorism as a teacher-centered instructional framework for a long time dominated educational settings, shaping every aspect of curriculum and instruction. In contrast to behaviorism, cognitivism is a relatively recent learning theory and its features are not well known or are confused with constructivism by teachers. This article aims to provide an overview of the core characteristics of cognitivism, its philosophical and theoretical basis, its implications for classroom practices, and its illustrative teaching methods. Cognitive apprenticeship, reciprocal teaching, anchored instruction, inquiry learning, discovery learning, and problem-based learning are explicated as the most distinctive methods of the cognitive perspective on learning.  相似文献   
139.
140.
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