全文获取类型
收费全文 | 2164篇 |
免费 | 63篇 |
专业分类
教育 | 1767篇 |
科学研究 | 31篇 |
各国文化 | 45篇 |
体育 | 102篇 |
综合类 | 1篇 |
文化理论 | 6篇 |
信息传播 | 275篇 |
出版年
2023年 | 13篇 |
2022年 | 25篇 |
2021年 | 31篇 |
2020年 | 71篇 |
2019年 | 112篇 |
2018年 | 134篇 |
2017年 | 164篇 |
2016年 | 138篇 |
2015年 | 84篇 |
2014年 | 111篇 |
2013年 | 508篇 |
2012年 | 83篇 |
2011年 | 94篇 |
2010年 | 62篇 |
2009年 | 68篇 |
2008年 | 68篇 |
2007年 | 57篇 |
2006年 | 44篇 |
2005年 | 33篇 |
2004年 | 36篇 |
2003年 | 41篇 |
2002年 | 36篇 |
2001年 | 17篇 |
2000年 | 37篇 |
1999年 | 19篇 |
1998年 | 15篇 |
1997年 | 16篇 |
1996年 | 18篇 |
1995年 | 14篇 |
1994年 | 14篇 |
1993年 | 6篇 |
1992年 | 7篇 |
1991年 | 8篇 |
1990年 | 3篇 |
1989年 | 5篇 |
1987年 | 3篇 |
1986年 | 2篇 |
1985年 | 5篇 |
1984年 | 4篇 |
1983年 | 1篇 |
1982年 | 2篇 |
1981年 | 4篇 |
1980年 | 3篇 |
1978年 | 2篇 |
1977年 | 2篇 |
1974年 | 1篇 |
1973年 | 1篇 |
1972年 | 1篇 |
1967年 | 1篇 |
1966年 | 1篇 |
排序方式: 共有2227条查询结果,搜索用时 15 毫秒
111.
McIntosh JE 《Child abuse & neglect》2002,26(3):229-241
OBJECTIVE: This article provides a clinical perspective on the combined impacts on children of spousal violence in the home and the absence of attuned parental thought that accompanies it. METHODS: This article takes the form of a commentary, drawing on clinical case studies and research literature to illustrate the child's experience of "unthinking," nonreflective parental states of mind, from the point of witnessing violence through to contact arrangements post-separation. Parallel dynamics and impacts are discussed with caregiving and legislative systems. RESULTS: The article suggests that "unthinking" states of mind in parents can be as damaging for a child as the overt witnessing and experiencing of violence. CONCLUSIONS: The prevention or early overturning of unthinking states of mind, in and out of the home, greatly influences the nature of a child's recovery from domestic violence. 相似文献
112.
Elena Bray Speth Jennifer L. Momsen Gregory A. Moyerbrailean Diane Ebert-May Tammy M. Long Sara Wyse Debra Linton 《CBE life sciences education》2010,9(3):323-332
Biology of the twenty-first century is an increasingly quantitative science. Undergraduate biology education therefore needs to provide opportunities for students to develop fluency in the tools and language of quantitative disciplines. Quantitative literacy (QL) is important for future scientists as well as for citizens, who need to interpret numeric information and data-based claims regarding nearly every aspect of daily life. To address the need for QL in biology education, we incorporated quantitative concepts throughout a semester-long introductory biology course at a large research university. Early in the course, we assessed the quantitative skills that students bring to the introductory biology classroom and found that students had difficulties in performing simple calculations, representing data graphically, and articulating data-driven arguments. In response to students'' learning needs, we infused the course with quantitative concepts aligned with the existing course content and learning objectives. The effectiveness of this approach is demonstrated by significant improvement in the quality of students'' graphical representations of biological data. Infusing QL in introductory biology presents challenges. Our study, however, supports the conclusion that it is feasible in the context of an existing course, consistent with the goals of college biology education, and promotes students'' development of important quantitative skills. 相似文献
113.
Susan Clayton Jerry Luebke Carol Saunders Jennifer Matiasek Alejandro Grajal 《Environmental Education Research》2014,20(4):460-475
Societal response to climate change has been inadequate. A perception that the issue is both physically and temporally remote may reduce concern; concern may also be affected by the political polarization surrounding the issue in the USA. A feeling of connection to nature or to animals may increase personal relevance, and a supportive social context may counteract political tensions. Zoos may provide opportunities for both sense of connection and social support. We surveyed over 7000 zoo and aquarium visitors to examine the ways in which a feeling of personal connection among zoo visitors may encourage concern about climate change. Results show that feeling connected to animals at the zoo is significantly associated with cognitive and emotional responses to climate change, as well as with other social groupings and social responses. Overall, the zoo seems to present a supportive social context for considering the topic. 相似文献
114.
Failure Modes and Effects Analysis (FMEA) is a proactive assessment tool originally created for quality assurance in manufacturing industries. FMEA involves the assignment of rankings for frequency, severity, and detection of errors within a process. Catalogers at ProQuest undertook an innovative project to use FMEA to evaluate MARC record production. This article provides an overview of FMEA for process evaluation and summarizes an application for cataloging. It considers the tool's value for error-proofing in MARC record creation and how FMEA might be applied more effectively in a variable environment. 相似文献
115.
You've Been Warned: Does Information About Pitfalls of Technological Toys Affect Caregiver Behavior?
Although the presence of toys in childhood has remained steady for decades, the types of toys that fill children's toy boxes have changed, especially over the last 10–15 years. Many of today's toys are marked by technological enhancements, from a shape sorter driven by a singing bear to robotic plastic animals designed to match a toddler's favorite television show. Although examining the effects of these changes is still an unexplored area, research to date suggests that there may be costs to the quality of caregiver–child interaction when using these toys together. This leads to two possibilities: (1) the design of the enhancements themselves hurt interactions; or (2) these toys can still be beneficial to interactions, but caregivers simply need to be aware of the potential pitfalls. In this study, we explore whether providing caregivers with a subtle cue about the potential negative impacts of technological toys on caregiver–child interaction affects their behavior. 相似文献
116.
Jennifer H. Lindstrom 《Learning disabilities research & practice》2007,22(4):229-236
One of the most significant barriers facing postsecondary students with reading and written expression disorders who are eligible to receive specific accommodations is the lack of professional knowledge pertaining to issues surrounding accommodations. Though guided by Section 504 of the Rehabilitation Act of 1973 and the Americans with Disabilities Act, the process by which accommodation decisions are made varies considerably across institutions of higher education. Given the recent rise in litigation surrounding the practice of how accommodations are determined as well as the increasing number of postsecondary students with reading and writing disabilities who are requesting accommodations, it is imperative that accommodation decisions be defensible and supported by empirical research. The purpose of this article is to provide an overview of current research on the effectiveness of accommodations for postsecondary students with language‐based learning disabilities, discuss important considerations in the accommodation selection process, and offer recommendations for future research. 相似文献
117.
Diane Ebert-May Terry L. Derting Timothy P. Henkel Jessica Middlemis Maher Jennifer L. Momsen Bryan Arnold Heather A. Passmore 《CBE life sciences education》2015,14(2)
The availability of reliable evidence for teaching practices after professional development is limited across science, technology, engineering, and mathematics disciplines, making the identification of professional development “best practices” and effective models for change difficult. We aimed to determine the extent to which postdoctoral fellows (i.e., future biology faculty) believed in and implemented evidence-based pedagogies after completion of a 2-yr professional development program, Faculty Institutes for Reforming Science Teaching (FIRST IV). Postdocs (PDs) attended a 2-yr training program during which they completed self-report assessments of their beliefs about teaching and gains in pedagogical knowledge and experience, and they provided copies of class assessments and video recordings of their teaching. The PDs reported greater use of learner-centered compared with teacher-centered strategies. These data were consistent with the results of expert reviews of teaching videos. The majority of PDs (86%) received video ratings that documented active engagement of students and implementation of learner-centered classrooms. Despite practice of higher-level cognition in class sessions, the items used by the PDs on their assessments of learning focused on lower-level cognitive skills. We attributed the high success of the FIRST IV program to our focus on inexperienced teachers, an iterative process of teaching practice and reflection, and development of and teaching a full course. 相似文献
118.
Four standards and best practices recently released or currently underway at the National Information Standards Organization were presented: Knowledge Bases and Related Tools, Presentation and Identification of E-Journals, Open Discovery Initiative, and Open Access Metadata Indicators. Basics outlining the creation work and deliverables were shared for each project. Applicability of these standards and best practices for different stakeholders of the information community were discussed. 相似文献
119.
The relationship between inappropriate breast support and upper-extremity kinematics for female runners is unclear. The purpose of this study was to investigate the effect of breast support and breast pain on upper-extremity kinematics during running. Eleven female recreational runners with larger breasts (UK D and E cup) completed a 7 min 20 s treadmill run (2.58 m · s?1) in a high and low breast support condition. Multi-planar breast and upper-extremity kinematic data were captured in each breast support condition by eight infrared cameras for 30 s towards the end of the run. Breast pain was rated at the end of each treadmill run using a numeric analogue scale. The high support bra reduced breast kinematics and decreased breast pain (P < 0.05). Upper-extremity kinematics did not differ between breast support conditions (P > 0.05), although some moderate positive correlations were found between thorax range of motion and breast kinematics (r = 0.54 to 0.73). Thorax and arm kinematics do not appear to be influenced by breast support level in female runners with large breasts. A high support bra that offers good multi-planar breast support is recommended for female runners with larger breasts to reduce breast pain. 相似文献
120.
Jennifer Curtin 《国际体育史杂志》2015,32(18):2123-2134
ABSTRACTThe presence of women in and around rugby union in New Zealand remains on the margins of the histories of the game of rugby and the more social and cultural histories that explore rugby’s impact on the formation of a New Zealand national identity. Yet, as this article demonstrates, women have long since engaged with rugby union in ways that may well have assisted in its ascendancy and ultimate claiming of the title of New Zealand’s national game. Through readings of newspapers, magazines, and club histories covering the period from the 1870s through to the Great War a picture emerges: women from both the middle and lower classes of New Zealand society supported the game of rugby as spectators, supporters, and fans. They did so in a manner that was sometimes acceptable but at other times regarded as distinctly inappropriate. In addition, women’s involvement was informal and localized – most obvious at the community level – and it is this feature that helps to explain women’s virtual invisibility in the histories of rugby union in New Zealand. 相似文献