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   14535篇
  免费   209篇
  国内免费   12篇
教育   10259篇
科学研究   1251篇
各国文化   207篇
体育   1247篇
综合类   3篇
文化理论   155篇
信息传播   1634篇
  2022年   88篇
  2021年   137篇
  2020年   243篇
  2019年   357篇
  2018年   470篇
  2017年   492篇
  2016年   470篇
  2015年   330篇
  2014年   391篇
  2013年   2868篇
  2012年   367篇
  2011年   369篇
  2010年   334篇
  2009年   300篇
  2008年   419篇
  2007年   351篇
  2006年   314篇
  2005年   291篇
  2004年   233篇
  2003年   262篇
  2002年   248篇
  2001年   249篇
  2000年   255篇
  1999年   238篇
  1998年   159篇
  1997年   155篇
  1996年   177篇
  1995年   178篇
  1994年   173篇
  1993年   143篇
  1992年   217篇
  1991年   198篇
  1990年   185篇
  1989年   204篇
  1988年   158篇
  1987年   144篇
  1986年   143篇
  1985年   165篇
  1984年   125篇
  1983年   143篇
  1982年   146篇
  1981年   131篇
  1980年   145篇
  1979年   147篇
  1978年   124篇
  1977年   100篇
  1976年   112篇
  1975年   76篇
  1974年   86篇
  1973年   71篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
Coverage of food journalism has increased in contemporary media and restaurant reviews are a regular feature in newspapers. The reaction to a rating of zero for a restaurant in The Weekend Australian newspaper in 2016 highlighted the role and expectations of critics. It also raised the issue of whether this form of lifestyle journalism included traditional journalistic objectives, or was influenced more by commercial factors. In this environment, it is therefore valuable to explore whether restaurant reviews are more aligned with detached journalism or an extension of marketing. Utilising a content analysis, this pilot study examines the ratings of food critics in four broadsheet/quality newspapers in Australia and the United Kingdom. During the three years of the data collection, 550 restaurant reviews were coded. The pattern of review marks suggested more supportive judgements than critical ones, and was consistent with the softer side of journalism.  相似文献   
992.
The C.R.E.A.T.E. (Consider, Read, Elucidate hypotheses, Analyze and interpret data, Think of the next Experiment) method uses intensive analysis of primary literature in the undergraduate classroom to demystify and humanize science. We have reported previously that the method improves students' critical thinking and content integration abilities, while at the same time enhancing their self-reported understanding of "who does science, and why." We report here the results of an assessment that addressed C.R.E.A.T.E. students' attitudes about the nature of science, beliefs about learning, and confidence in their ability to read, analyze, and explain research articles. Using a Likert-style survey administered pre- and postcourse, we found significant changes in students' confidence in their ability to read and analyze primary literature, self-assessed understanding of the nature of science, and epistemological beliefs (e.g., their sense of whether knowledge is certain and scientific talent innate). Thus, within a single semester, the inexpensive C.R.E.A.T.E. method can shift not just students' analytical abilities and understanding of scientists as people, but can also positively affect students' confidence with analysis of primary literature, their insight into the processes of science, and their beliefs about learning.  相似文献   
993.
Human anatomy in physical therapy programs is a basic science course serving as a foundation for subsequent clinical courses. Integration of anatomy with a clinical emphasis throughout a curriculum provides opportunities for reinforcement of previously learned material. Considering the human cadaver laboratory as a fixed cost to our program, we sought opportunities to add value to the resource via vertical integration into a clinical skills course taught later in the curriculum. We designed an opportunity for second-year physical therapy students to revisit the human anatomy laboratory to study select clinical musculoskeletal tests and the associated anatomy in a clinically relevant context. Students performed select orthopedic ligament test on human cadavers, then incised specific structures and repeated the tests. Students were able to feel and visualize the function of pertinent anatomy associated with the clinical tests. Ninety-five percent of respondents reported that the ligament stress testing experience enhanced their understanding of orthopedic clinical tests with 91% reporting an enhanced understanding of anatomy related to specific clinical tests. Likewise, the experience was perceived as enjoyable and valuable with 86% of respondents reporting the experience as enjoyable and 100% responding the experience should continue as part of the curriculum.  相似文献   
994.
Despite extensive experience teaching residents, surgeons are an untapped resource for educating medical students. We hypothesized that by involving surgeons as teachers earlier in the medical school curriculum, medical students' interest in surgery will increase and their opinions of surgeons will improve. Five programs designed to involve surgeons as educators in the medical school curriculum were implemented. The first program, started in 2008, introduced surgical faculty into the first-year medical student anatomy dissection laboratories. Other programs initiated in 2008 included: Surgical Clinical Correlates in Anatomy, which involved faculty teaching through cadaver surgery; Clinical Pathologic Conferences in Anatomy, a surgeon-led conference based on clinical cases; and a women's faculty-student mentorship program. Table Rounds, a surgeon-led anatomy review that used clinical scenarios to quiz students was begun in 2009. All five programs were successfully integrated into the medical school curriculum. While student opinion of surgeons as educators improved, there were no significant changes in student interest in surgery as a career nor change in performance on written examinations over the Anatomy content covered by the surgeons. Surgical faculty and trainees can be integrated into the medical school curriculum. Involving surgeons as educators earlier in the medical school curriculum may have longer term effects than could be observed in this study. At a minimum, the experience improved student opinion of surgeons as educators.  相似文献   
995.
Team-based learning (TBL) strategy is being adopted in medical education to implement interactive small group learning. We have modified classical TBL to fit our curricular needs and approach. Anatomy lectures were replaced with TBL that required preparation of assigned content specific discussion topics (in the text referred as "discussion topics"), an individual self-assessment quiz (IRAT), analysis of the discussion topics, and then the team retaking the same quiz (GRAT) for discussion and deeper learning. Embryology and clinical correlations were given as lectures. Unit examinations consisted of graded IRAT and GRAT. The National Board of Medical Examiners (NBME) Subject Examination was the comprehensive final examination. To evaluate the effect of TBL on student performance we compared the departmental and NBME subject examination scores between the traditional and TBL curricula. We collected five years of data on student performance in TBL-based anatomy and lecture-based preclinical courses. Our results show that departmental and NBME subject examination scores for TBL-based anatomy were higher than those for lecture-based anatomy. We subsequently compared average NBME scores for anatomy with those in other preclinical courses that were lecture-based. Average NBME anatomy scores were significantly higher than those for all the lecture-based preclinical courses. Since the introduction of TBL in anatomy, student performance has progressively improved in the NBME subject examination. Students perceived TBL as a motivator to be a responsible team member and to contribute to collective learning by the team. Further, it reinforced self-directed learning and fostered an appreciation for peer respect. Interestingly, these perceptions were uniform irrespective of student course performance.  相似文献   
996.
This paper considers the simultaneous stabilization of a set of nonlinear systems, that involve uncertain nonlinearities besides multiple time-varying delays in the states. Under the assumption that the upper bounds of delays are known, a memoryless simultaneously stabilizing state feedback controller is presented by proposing a control Lyapunov-Krasovskii functional (CL-KF) method. As required to establish the CL-KF approach, a systematic procedure is given to construct CL-KFs for the systems under consideration. By the obtained CL-KFs, a common stabilizing state feedback control law is established to drive all the systems to the origin. Examples are finally given to verify the benefit of the proposed design method.  相似文献   
997.
The purpose of this study was to identify joint angular kinematics that corresponds to shooting accuracy in the stationary ice hockey wrist shot. Twenty-four subjects participated in this study, each performing 10 successful shots on four shooting targets. An eight-camera infra-red motion capture system (240 Hz), along with passive reflective markers, was used to record motion of the joints, hockey stick, and puck throughout the performance of the wrist shot. A multiple regression analysis was carried out to examine whole-body kinematic variables with accuracy scores as the dependent variable. Significant accuracy predictors were identified in the lower limbs, torso and upper limbs. Interpretation of the kinematics suggests that characteristics such as a better stability of the base of support, momentum cancellation, proper trunk orientation and a more dynamic control of the lead arm throughout the wrist shot movement are presented as predictors for the accuracy outcome. These findings are substantial as they not only provide a framework for further analysis of motor control strategies using tools for accurate projection of objects, but more tangibly they may provide a comprehensive evidence-based guide to coaches and athletes for planned training to improve performance.  相似文献   
998.
999.
This paper describes the state of the art in knowledge structuring techniques. A classification of the most popular methods and tools is proposed. Stress is put on visual techniques as a powerful mind tool. Object-structured analysis, which works as a knowledge-stratification method, is discussed.  相似文献   
1000.
In line with its institution's commitment to keep new student orientation/welcome events "green," Columbia University's Health Sciences Library (HSL) applied for a National Network of Libraries of Medicine Middle Atlantic Region (NN/LM MAR) Small Projects Award(1) in Spring/Summer 2009 to explore paperless modes of outreach. This article describes the project that resulted from this funding, whose purpose was to determine whether customized 1 GB USB flash drives are a good vehicle for distributing library promotional materials to incoming medical and dental students. This project gave HSL librarians the opportunity to connect with students in a way that had not been done before and to consider how these new students use/view the information the library produces.  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