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   10633篇
  免费   131篇
  国内免费   19篇
教育   7218篇
科学研究   1254篇
各国文化   61篇
体育   1036篇
综合类   4篇
文化理论   83篇
信息传播   1127篇
  2022年   87篇
  2021年   151篇
  2020年   186篇
  2019年   265篇
  2018年   428篇
  2017年   390篇
  2016年   384篇
  2015年   216篇
  2014年   343篇
  2013年   1685篇
  2012年   306篇
  2011年   328篇
  2010年   298篇
  2009年   256篇
  2008年   293篇
  2007年   256篇
  2006年   249篇
  2005年   211篇
  2004年   230篇
  2003年   167篇
  2002年   176篇
  2001年   231篇
  2000年   224篇
  1999年   207篇
  1998年   121篇
  1997年   145篇
  1996年   120篇
  1995年   83篇
  1994年   105篇
  1993年   78篇
  1992年   177篇
  1991年   133篇
  1990年   130篇
  1989年   150篇
  1988年   136篇
  1987年   106篇
  1986年   116篇
  1985年   116篇
  1984年   88篇
  1983年   96篇
  1982年   63篇
  1981年   78篇
  1980年   65篇
  1979年   111篇
  1978年   70篇
  1977年   69篇
  1976年   56篇
  1975年   61篇
  1974年   67篇
  1973年   58篇
排序方式: 共有10000条查询结果,搜索用时 461 毫秒
991.
While the need to present food science information effectively is viewed as a critical competency for food scientists by the Institute of Food Technologists, most food scientists may not receive adequate training in this area. Effective presentations combine both scientific content and delivery mechanisms that demonstrate presenter enthusiasm for the topic and generate audience interest. This paper provides food science presentation “best practices” based upon the results of the author's 10 y of experience teaching communication skills to 1st‐year graduate students. Topics include development of a “Presentation Inventory” that encourages presenters to consider why they are presenting, who they are presenting to, what information they plan to present, and how they plan to present the information. More specific sections of the paper address presentation introductions and conclusions, developing visual aids, responding to audience questions, flow, pacing, and time management, technological competency, and tips on how to practice a presentation. Such information should be applicable to all types of food science practitioners including undergraduate and graduate students, postdoctoral scholars, teaching and research academics, and government, industrial, and consulting food scientists. An awareness of such “best practices” among presenters of food science information can help raise the bar to improve the quality of contemporary food science presentations.  相似文献   
992.
The author used an archival study to explore the relationship between college counseling and retention. The cohort for this study was a college's 2006 class of full‐time, 1st‐year students (N = 429). The results of chi‐square analyses and regression analyses indicated (a) a significant difference in retention between high‐risk and low‐risk students who used counseling services (CS) and (b) that a student's risk for dropout did not vary significantly over time based on risk level or CS use.  相似文献   
993.
This article describes a strategy to integrate information literacy into the curriculum of a nursing program in a community college. The model is articulated in four explained phases: preparatory, planning, implementation, and evaluation. It describes a collaborative process encouraging librarians to work with nursing faculty, driving students to acquire information literacy competencies, to use information resources as part of their learning process, and to be lifelong learners. The literature reviews the evolution of the concept of informatics in nursing practice and the different blueprints organized to attain information literacy competencies. It also describes studies that have included these competencies into nursing curriculum.  相似文献   
994.
995.
996.
997.
The main purpose of this study is to analyze news stories regarding children in the national print media in the last five years using top eight newspapers in terms of circulation and evaluate these news stories based on the Convention on the Rights of the Child, which was issued by the UN and signed by Turkey. The research was undertaken as a case study. The study data were collected from top eight newspapers in terms of circulation between 2010 and 2014 in order to reveal when and how newspapers at national level represent children and the scientific content of impressions in the national media. Results show that children appear in the national media in mostly negative cases. In conclusion, it was observed in this study, children’s rights to life, development, protection, and participation were violated at both national and international levels. In this sense, news reflects the truth about “children’s rights violations”. However, the way that children appear in news and reflection in media constitute a secondary children’s rights violation.  相似文献   
998.
This article reports the results of research to determine if a significant interactive effect exists between students' lingual background (English as a primary language [EPL] versus English as a secondary language [ESL]) and question format on students' examination scores. Students were administered examinations made up of four subtests covering the same subject matter. The subtests were composed of four question formats: multiple choice quantitative, multiple choice theoretical, open-ended quantitative, and open-ended essay questions. Based on analysis of variance and analysis of covariance, significant differences were observed between EPL and ESL students depending on the type of question on the examination.  相似文献   
999.
The effectiveness of a conflict resolution training program was examined in an American midwestern suburban elementary school. Participants were 80 kindergartners randomly assigned to an experimental or control condition in morning or afternoon time blocks. Children in the experimental condition received 9 hr of conflict resolution training integrated into a curriculum unit on friendship taught daily for 4 consecutive weeks. Children in the control condition were taught the identical friendship unit for the same period of time without conflict resolution training. Teachers rotated equally across conditions. Significant differences between trained and untrained children occurred in their knowledge and retention of the conflict resolution procedure, willingness and ability to use the procedure in conflict situations, and conceptual understanding of friendship.  相似文献   
1000.
OBJECTIVE: A model was examined in which the association between a parent's history of abuse and the parent's own abusive behavior toward his or her children was hypothesized to be mediated by parental psychopathology, early childbearing, and consistency of discipline. Additionally, the effect of severity of abuse on the likelihood of becoming abusive was examined. METHOD: Participants were 109 parents (G1) and their male children (G2) who were involved in a longitudinal study. The G1 parents reported on their own experiences of abuse when they were children. Ten years later, the G2 youths reported on the G1 parents' abusive behavior toward them. A number of other factors, including parental socioeconomic status (SES), antisocial behavior, depression and Post-traumatic Stress Disorder (PTSD), consistency of discipline, and the perceived early difficulty of the G2 children were measured. RESULTS: As reported by their own children, parents who reported having been abused in childhood were significantly more likely to engage in abusive behaviors toward the next generation. Findings indicated that abuse experienced by the parents, as well as consistency of discipline and depression plus PTSD, were predictive of parental abuse of the child. Contrary to hypotheses, the effects were not fully mediated. However, there were significant interactions between parental history of abuse and consistency of discipline, as well as abuse history and depression and PTSD. Parents who had experienced multiple acts of abuse and at least one physical impact were more likely to become abusive than were the other parents. CONCLUSIONS: The implications of these findings for preventive interventions are discussed.  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