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   1724篇
  免费   21篇
教育   1341篇
科学研究   62篇
各国文化   26篇
体育   78篇
文化理论   5篇
信息传播   233篇
  2023年   7篇
  2022年   8篇
  2021年   11篇
  2020年   28篇
  2019年   50篇
  2018年   54篇
  2017年   70篇
  2016年   56篇
  2015年   38篇
  2014年   62篇
  2013年   420篇
  2012年   51篇
  2011年   45篇
  2010年   39篇
  2009年   47篇
  2008年   41篇
  2007年   41篇
  2006年   45篇
  2005年   34篇
  2004年   40篇
  2003年   34篇
  2002年   34篇
  2001年   29篇
  2000年   23篇
  1999年   29篇
  1998年   23篇
  1997年   15篇
  1996年   21篇
  1995年   18篇
  1994年   15篇
  1993年   19篇
  1992年   17篇
  1991年   17篇
  1990年   12篇
  1989年   17篇
  1988年   26篇
  1987年   19篇
  1986年   16篇
  1985年   13篇
  1984年   8篇
  1983年   9篇
  1982年   16篇
  1981年   11篇
  1980年   11篇
  1979年   10篇
  1977年   7篇
  1976年   11篇
  1974年   10篇
  1972年   8篇
  1968年   6篇
排序方式: 共有1745条查询结果,搜索用时 15 毫秒
961.

Objectives:

This study examined the information-seeking behaviors of basic science researchers to inform the development of customized library services.

Methods:

A qualitative study using semi-structured interviews was conducted on a sample of basic science researchers employed at a university medical school.

Results:

The basic science researchers used a variety of information resources ranging from popular Internet search engines to highly technical databases. They generally relied on basic keyword searching, using the simplest interface of a database or search engine. They were highly collegial, interacting primarily with coworkers in their laboratories and colleagues employed at other institutions. They made little use of traditional library services and instead performed many traditional library functions internally.

Conclusions:

Although the basic science researchers expressed a positive attitude toward the library, they did not view its resources or services as integral to their work. To maximize their use by researchers, library resources must be accessible via departmental websites. Use of library services may be increased by cultivating relationships with key departmental administrative personnel. Despite their self-sufficiency, subjects expressed a desire for centralized information about ongoing research on campus and shared resources, suggesting a role for the library in creating and managing an institutional repository.

Highlights

  • Basic science researchers rely on a small network of individuals in their institution and at other institutions to satisfy their information needs.
  • Basic science researchers tend to ignore institutional boundaries when searching for information and do not necessarily view the library as the primary source of scholarly information.
  • Basic science researchers use the interlibrary loan service regularly but otherwise rarely use traditional library services such as mediated literature searching and instruction.

Implications

  • The library must establish a presence in researchers'' work environments, rather than expect them to seek out library resources and services.
  • The increased emphasis by funding agencies on clinical translational science may impact the information needs of basic science researchers in the future.
  • Libraries have an opportunity to capitalize on their positive reputation and basic scientists'' desire for more centralized information to create new information resources and services such as institutional repositories.
  相似文献   
962.
The design of educational experiences is often mediated by historical, institutional, and social conceptions. Although these influences can initially shape the way that educational opportunities are created and implemented, this preliminary form has the potential to reorganize. In this paper, we illustrate how history shows its presence in the ways that instructors systematically arrange a technology course for urban youth. This original approach to the course inhibits youth participation. Incrementally, however, the cultural enactments of instructors and students lead to a reorganization of activity. Through highlighting history and examining the intersection of culture, we provide insight into the ways in which adolescents of color become successfully engaged in learning technology. We focus our study by asking how co-existence and the dialectic of structure and agency play a role as youth develop an identity as a technology user. Further, this emergent learning design affords outsiders a unique view of the educational and contextual experiences of these youth. Our illustration of how history, enacted culture and identity mediate the emergent learning design stems from a grounded theory approach to analyzing video, interview and artifact data in this after-school technology course.
Donna DeGennaroEmail:

Donna DeGennaro   is an assistant professor at Montclair State University in the Department of Curriculum and Teaching. She earned a bachelor’s degree in physics at Susquehanna University, a master’s degree in educational technology from Chestnut Hill College in Philadelphia, PA and a PhD in Educational Leadership from the University of Pennsylvania. Her research interests center on youth technology practices and interactions to inform innovative designs of learning environments. Tiffany L. Brown   is an assistant professor in the Family and Child Studies Department of Montclair State University. She earned a bachelor’s degree in psychobiology and a master’s degree in social science, both from Binghamton University in Binghamton, NY and a PhD in child and family studies from Syracuse University, located in Syracuse NY. Areas of research include African American parenting and African American adolescent functioning and development.  相似文献   
963.
We examine the inseparability of one’s environment with the elements of adaptation and identity. Specifically, we revisit the Project H.O.M.E. learning environment as we suggest that the entities of adaption and environment are not only binding, but also naturally in constant flux as they interact with each other. Contrary to nature, however, the social distance between the instructors and learners is the result of a human construct that often hinders adaptation and identity development. We address the factors that afforded participants overcoming social distance and ultimately cultivating a shift in the learning structure of Project H.O.M.E.
Donna DeGennaroEmail:
  相似文献   
964.
ObjectiveTo describe trends of felony sexual abuse prosecutions between 1992 and 2002 for two districts of a large urban city that differed primarily in their use of children's advocacy centers (CACs) for sexual abuse evaluations in children.MethodsAggregate data for two districts of a large urban city were provided from 1992 to 2002 from the district attorney's office, child protective services (CPS) agency, and all CACs serving both districts. Summary statistics were calculated over time and compared between both districts for ecologic trends using negative binomial regression.ResultsOver the time period of the study, substantiated reports of child sexual abuse declined: District 1 experienced a 59% decrease in the incidence of reports, while District 2 experienced a 49% decrease in the incidence of reports. Despite this decrease, felony prosecutions of child sexual abuse increased in District 1 (from 56.6 to 93.0 prosecutions/100,000 children, rate ratio 1.64, 95% CI 1.38–1.95), but did not significantly increase in District 2 (from 58.0 to 54.9 prosecutions/100,000 children, rate ratio 0.94, 95% CI 0.73–1.23); by 2002, the rate of felony prosecutions in District 1 was 69% greater (95% CI 37–109%) than the rate in District 2. In 1992, CACs in District 1 evaluated approximately 400 children, increasing to 1,187 children by 2002. The number of children evaluated by CACs in District 2 increased modestly from nearly 800 in 1992 to 1,000 in 2002.ConclusionFelony prosecutions of child sexual abuse doubled in a district where the use of CACs nearly tripled, while no increase in felony prosecutions of child sexual abuse was found in a neighboring district, where the use of CACs remained fairly constant over time.Practice implicationsThough many limitations exist when bringing together ecological data from different agencies, the strength of the association we observed between increased CAC use and increased felony prosecutions, and the stepwise fashion in which it occurred should support future research to confirm our findings and to delineate which attributes of CAC performance might impact the likelihood of prosecution of child sexual abuse.  相似文献   
965.
In this article we explore examples of public pedagogical actions and interventions, reading them through a social justice education framework lens. In our discussion we start with definitions of social justice, public pedagogy and case study methodologies. Then, we look at a variety of international examples to highlight the pervasiveness of public pedagogical opportunities in visual culture that include a festival, an individual, a citywide symposium, an online community, a cultural group and a museum exhibition. They are divided into three categories based on social justice principles suggested by Ayers et al. and later interpreted by Dewhurst: (1) Public pedagogy and social justice is rooted in people's experiences: Fiesta del Señor de Choquekillka: Ollantaytambo, Peru and Janet Weight Reed – an artist's public pedagogy utilising social media; (2) Public pedagogy and social justice is a process of reflection and action together: Ideas City Festival and the Vlogbrothers; (3) Public pedagogy and social justice seeks to dismantle systems of inequality to create a more humane society: CULTURUNNERS and sh[OUT]: Lesbian, Gay, Bisexual, Transgender and Intersex art and culture. It is our hope that in looking more closely at these international examples of public pedagogy and social justice education that the power of such alternative sites of learning is apparent and encourages further interventions and investigations in such spaces of inquiry.  相似文献   
966.
The purpose of the study was to determine if the kinematics exhibited by skilled runners wearing a unilateral, transtibial prosthesis during the curve section of a 200-m sprint race were influenced by interaction of limb-type (prosthetic limb (PROS-L) vs. nonprosthetic limb (NONPROS-L)) and curve-side (inside and outside limb relative to the centre of the curve). Step kinematics, toe clearance and knee and hip flexion/extension, hip ab/adduction for one stride of each limb were generated from video of 13 males running the curve during an international 200 m transtibial-classified competition. Using planned comparisons (P < 0.05), limb-type and curve-side interactions showed shortest support time and lowest hip abduction displacement by outside-NONPROS-L; shortest step length and longest time to peak knee flexion by the inside-PROS-L. For limb-type, greater maximum knee flexion angle and lower hip extension angles and displacement during support and toe clearance of PROS-Ls occurred. For curve-side, higher hip abduction angles during non-support were displayed by inside-limbs. Therefore, practitioners should consider that, for curve running, these kinematics are affected mostly by PROS-L limitations, with no clear advantage of having the PROS-L on either side of the curve.  相似文献   
967.
968.
969.
970.
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