全文获取类型
收费全文 | 445篇 |
免费 | 13篇 |
专业分类
教育 | 324篇 |
科学研究 | 9篇 |
各国文化 | 3篇 |
体育 | 9篇 |
信息传播 | 113篇 |
出版年
2024年 | 1篇 |
2023年 | 3篇 |
2022年 | 4篇 |
2021年 | 2篇 |
2020年 | 10篇 |
2019年 | 15篇 |
2018年 | 25篇 |
2017年 | 22篇 |
2016年 | 20篇 |
2015年 | 14篇 |
2014年 | 14篇 |
2013年 | 110篇 |
2012年 | 14篇 |
2011年 | 19篇 |
2010年 | 12篇 |
2009年 | 19篇 |
2008年 | 21篇 |
2007年 | 13篇 |
2006年 | 11篇 |
2005年 | 9篇 |
2004年 | 9篇 |
2003年 | 9篇 |
2002年 | 6篇 |
2001年 | 5篇 |
2000年 | 4篇 |
1999年 | 2篇 |
1998年 | 6篇 |
1997年 | 3篇 |
1996年 | 5篇 |
1995年 | 7篇 |
1994年 | 7篇 |
1993年 | 4篇 |
1992年 | 4篇 |
1991年 | 7篇 |
1990年 | 4篇 |
1989年 | 3篇 |
1988年 | 5篇 |
1987年 | 1篇 |
1986年 | 1篇 |
1985年 | 1篇 |
1984年 | 1篇 |
1980年 | 2篇 |
1974年 | 1篇 |
1973年 | 1篇 |
1972年 | 1篇 |
1963年 | 1篇 |
排序方式: 共有458条查询结果,搜索用时 15 毫秒
411.
Marbach-Ad G Briken V Frauwirth K Gao LY Hutcheson SW Joseph SW Mosser D Parent B Shields P Song W Stein DC Swanson K Thompson KV Yuan R Smith AC 《CBE life sciences education》2007,6(2):155-162
As research faculty with expertise in the area of host–pathogen interactions (HPI), we used a research group model to effect our professional development as scientific educators. We have established a working hypothesis: The implementation of a curriculum that forms bridges between our seven HPI courses allows our students to achieve deep and meaningful learning of HPI concepts. Working collaboratively, we identified common learning goals, and we chose two microorganisms to serve as anchors for student learning. We instituted variations of published active-learning methods to engage students in research-oriented learning. In parallel, we are developing an assessment tool. The value of this work is in the development of a teaching model that successfully allowed faculty who already work collaboratively in the research area of HPI to apply a “research group approach” to further scientific teaching initiatives at a research university. We achieved results that could not be accomplished by even the most dedicated instructor working in isolation. 相似文献
412.
With few exceptions, a hearing perspective controls the direction of deaf education nationally and internationally. People who are hearing have a powerful influence over decisions that affect legislation, policies, professional organizations, research agendas, and curricular decisions related to deaf education. Although this situation is changing in some arenas, people who are deaf often have relatively less influence than their hearing counterparts in shaping the educational agenda. The authors, one deaf and one hearing, relate their views on the challenge of changing this imbalance of power and discuss their personal experiences as friends and professional collaborators as they offer strategies for creating and nurturing partnerships between people who are deaf and people who are hearing. 相似文献
413.
A Trajectory for Community Networks 总被引:1,自引:0,他引:1
We argue that the World Wide Web, network communities, and computer-supported cooperative work have transformed the context for community networks, occasioning a reconstruction of the concept. We analyze features of proximate communities and use these as a basis for examining the design rationale for current implementations of community networks. In particular, we highlight multiple roles and relationships, social and material reciprocity, personal and institutional visibility and accountability, personal and collective efficacy, community-based institutions, and place. We use the analysis to identify directions for further study and development of community networking. 相似文献
414.
Su Golder PhD Kelly Farrah MLIS Monika Mierzwinski-Urban MLIS Beth Barker BSc Anna Rama 《Health information and libraries journal》2023,40(2):190-200
Background
The most current objectively derived search filters for adverse drug effects are 15 years old and other strategies have not been developed and tested empirically.Objective
To develop and validate search filters to retrieve evidence on adverse drug effects from Ovid medline and Ovid Embase.Methods
We identified systematic reviews of adverse drug effects in Epistemonikos. From these reviews, we collated their included studies which we then randomly divided into three tests and one validation set of records. We constructed a search strategy to maximise relative recall using word frequency analysis with test set one. This search strategy was then refined using test sets two and three and validated on the final set of records.Results
Of 107 systematic reviews which met our inclusion criteria, 1948 unique included studies were available from medline and 1980 from Embase. Generic adverse drug effects searches in medline and Embase achieved 90% and 89% relative recall, respectively. When specific adverse effects terms were added recall was improved.Conclusion
We have derived and validated search filters that retrieve around 90% of records with adverse drug effects data in medline and Embase. The addition of specific adverse effects terms is required to achieve higher recall. 相似文献415.
Impacts of a Comprehensive School Readiness Curriculum for Preschool Children at Risk for Educational Difficulties
下载免费PDF全文
![点击此处可从《Child development》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Christopher J. Lonigan Beth M. Phillips Jeanine L. Clancy Susan H. Landry Paul R. Swank Michael Assel Heather B. Taylor Alice Klein Prentice Starkey Celene E. Domitrovich Nancy Eisenberg Jill de Villiers Peter de Villiers Marcia Barnes The School Readiness Consortium 《Child development》2015,86(6):1773-1793
This article reports findings from a cluster‐randomized study of an integrated literacy‐ and math‐focused preschool curriculum, comparing versions with and without an explicit socioemotional lesson component to a business‐as‐usual condition. Participants included 110 classroom teachers from randomized classrooms and approximately eight students from each classroom (N = 760) who averaged 4.48 (SD = 0.44) years of age at the start of the school year. There were positive impacts of the two versions of the curriculum on language, phonological awareness, math, and socioemotional outcomes, but there were no added benefits to academic or socioemotional outcomes for the children receiving explicit socioemotional instruction. Results are discussed with relevance to early childhood theory, policy, and goals of closing the school readiness gap. 相似文献
416.
417.
Tracking, the sorting and grouping of students in schools, has been criticized for separating students along race and class lines, re-segregating diverse schools and perpetuating unequal access to a college-bound curriculum. Detracking, a reform in which students are placed intentionally in mixed-ability classes, is an attempt to remedy the negative effects of tracking. In this “think piece,” the authors review the relevant literature and reflect upon their experiences teaching and researching in detracked classrooms, presenting several dilemmas apparent within detracked classrooms and identifying a number of practices that have proven successful at meeting students' needs in these classrooms. The authors argue that if detracking is to achieve its aims, it must be part of more comprehensive reform aimed at the equitable redistribution of resources and opportunities within schools, deliberately placing the needs of previously underserved students at the center of reform initiatives. 相似文献
418.
The aim of this study was to determine the extent to which the resistance provided by variable-cam resistance training machines match joint torque capability. Eight variable-cam knee extension machines from six different manufacturers were assessed. Resistive torque for a constant weight/load was measured at five knee joint angles. Knee extensor muscle torque capability--the angle-torque relationship--of 10 healthy young men was determined isometrically and dynamically at the same five angles. After normalization, the two relationships were compared. The angle - torque relationship of the knee extensors displayed an inverted "U" shape as expected, with dynamic torque changing by +40% on the ascending limb (1.75 - 1.40 rad) and -60% on the descending limb (1.05-0.35 rad) of the angle - torque relationship. The angle-torque relationship of the different training machines was highly variable, but consistently less curvilinear and significantly different from knee extensor capabilities, with changes in torque of +2.5 to +22.2% (ascending limb) and +37.6 to -20.5% (descending limb). It is recommended that variable-cam resistance training machines be designed with the angle - torque relationship of the relevant joint and the inertial profile of the lifting exercise in mind. 相似文献
419.
Brandon Rhett Rigby Adam Robert Gloeckner Suzanne Sessums Beth Anne Lanning 《Research quarterly for exercise and sport》2017,88(1):26-35
Purpose: The purpose of this study was to characterize pelvic displacement and cardiorespiratory responses to simulated horseback riding and walking in youth with cerebral palsy and to compare responses to youth without cerebral palsy before and after 8 weeks of hippotherapy. Method: Eight youth with cerebral palsy (Mage = 10 ± 4 years; Mheight = 137 ± 24 cm; Mweight = 32 ± 16 kg) and 8 youth without cerebral palsy (Mage = 11 ± 2 years; Mheight = 149 ± 14 cm; Mweight = 48 ± 15 kg) underwent a hippotherapy intervention. Participants completed simulated horseback riding at an intensity approximating a fast walk (0.65 Hz) and walked on a treadmill (1 mph, 0% grade) before and after hippotherapy. Pelvic displacement along the anterior-posterior, vertical, and medial-lateral axes, heart rate, oxygen consumption, ventilation, and blood pressure were measured at rest and during steady-state exercise in both exercise modes. Results: Kinematics and cardiorespiratory responses were similar between the 2 groups during simulated horseback riding (p > .05 for all) before the intervention. Significantly greater cardiorespiratory responses were observed in the youth with cerebral palsy compared with the group without cerebral palsy while walking before and after the intervention (p < .05, effect sizes 26% to 237% greater). Eight weeks of hippotherapy did not alter responses, but anecdotal improvements in gait, balance, posture, and range of motion were observed in those with cerebral palsy. Conclusion: These results contribute to our understanding regarding the efficacy of hippotherapy as an intervention to improve functional abilities in those with cerebral palsy. 相似文献
420.