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   3576篇
  免费   18篇
教育   2511篇
科学研究   551篇
各国文化   13篇
体育   151篇
综合类   7篇
文化理论   66篇
信息传播   295篇
  2023年   11篇
  2022年   12篇
  2021年   33篇
  2020年   23篇
  2019年   40篇
  2018年   96篇
  2017年   139篇
  2016年   201篇
  2015年   143篇
  2014年   85篇
  2013年   179篇
  2012年   170篇
  2011年   185篇
  2010年   101篇
  2009年   46篇
  2008年   85篇
  2007年   72篇
  2006年   63篇
  2005年   707篇
  2004年   483篇
  2003年   315篇
  2002年   145篇
  2001年   72篇
  2000年   43篇
  1999年   32篇
  1998年   13篇
  1997年   12篇
  1996年   12篇
  1995年   8篇
  1994年   6篇
  1993年   3篇
  1992年   7篇
  1991年   4篇
  1990年   7篇
  1989年   5篇
  1988年   4篇
  1987年   6篇
  1985年   3篇
  1984年   1篇
  1983年   5篇
  1982年   3篇
  1981年   3篇
  1980年   1篇
  1978年   1篇
  1977年   1篇
  1976年   2篇
  1975年   1篇
  1971年   1篇
  1970年   1篇
  1967年   1篇
排序方式: 共有3594条查询结果,搜索用时 31 毫秒
961.
962.
A quantitative content analysis examined stereotypes and counter-stereotypes concerning mental illness in crime-based fictional television programs aired on U.S. television between 2010 and 2013. Coders rated 65 randomly selected television episodes and 983 characters for stereotypes and counter-stereotypes related to mental illness. Characters labeled as having mental illness demonstrated greater likelihood of committing crimes and violence than the remaining population of characters, perpetuating stereotypes. They also stood greater chance of being victimized by crime, another stereotype. Nevertheless, counter-stereotypes related to social standing (including the presence of family and friends) also emerged in the television content. The authors discuss how stereotypes in television content might contribute to the stigmatization of mental illness.  相似文献   
963.
The purpose of this study was to investigate developmental gender differences in academic achievement areas, with the primary focus on writing, using the child and adolescent portion (ages 6–21 years) of the Kaufman Test of Educational Achievement—Second Edition, Brief Form, norming sample (N = 1,574). Path analytic models with gender, parent education, age, age2, and gender‐by‐age moderation as predictors of reading, writing, and math were used to test for gender differences and for the influence of development on these differences. A small but consistent advantage was identified for females in reading. No gender differences were detected in math. The most important results of the present study pertain to a gender gap in writing in favor of females that increased as a function of age. Male students are at greater risk for writing failure than are females.  相似文献   
964.
Perceived social support has been shown to be one of the most important protective factors for emerging adult students during their transition to university. However, the relationships between perceived social support and dimensions of gender and family background, which have been shown to affect adjustment to college life, remain unexplored. The current study analyzes the effect of gender, parents’ education, and family income level on social support perceived by Spanish university students. The sample consisted of 575 women and 280 men, of average age 18.02 years (SD?=?0.52) enrolled in the first year of degree courses at the University of Santiago de Compostela (Spain). Three measures were used to assess various facets of perceived social support, namely perceived acceptance, social provisions, and support availability and satisfaction. Gender differences were identified for several perceived social support dimensions; women reported a wider social network, which should cover more diverse needs of social support. In addition, differences related to mother’s education and family income level emerged for the availability of support and perceived acceptance. The results highlight the different role of gender and family background in several dimensions of perceived social support during the transition to emerging adulthood.  相似文献   
965.
966.
967.
A psychoeducational face-to-face training program (Keep Your Brain Fit!) was developed to support the working population in coping with age-related cognitive changes and taking proactive preventive measures to maintain cognitive health. A feasibility study was conducted to test the training program presented in a workshop format. Participants completed an online questionnaire immediately after the workshop and three weeks later. The questionnaire assessed participants’ appreciation of the workshop and evaluation of subjective cognitive functioning. 155 men and women between 40 and 65 years old (mean age: 53.8) participated in the workshops. The results showed the participants’ appreciation of the knowledge they gained by participating in the workshop. Participation reduced negative emotions toward cognitive functioning in 69% of the participants, and almost 50% indicated that they were better able to cope with cognitive challenges. This psychoeducational program may offer a valuable contribution to the coping strategies of the aging workforce. Adjustments were made based on participants’ evaluations, and the program was made suitable for online use in order to reach a broader audience.  相似文献   
968.
An essay discussing the challenges and opportunities in global publishing and in particular the are addressing many of the big questions publishers are facing today which arise from the marriage of content and technology. Includes examination of three major verticals (STM, Education and Trade publishing) and considers the possibilities offered by cross-industry collaboration to evolve global standards.  相似文献   
969.
This study investigates the undergraduates of a university in northern Taiwan for their reading habits and evaluation of Chinese translated books. It is found that reading translated books is prevalent among them. Their experiences of reading Chinese translated books tend to be satisfactory and more than half of them think the quality of Chinese translated books is fine. The result of this study confirms previous research that accuracy is the basic requirement of translated books and translation mistakes should be avoided, but goes against the popular perception that the quality of Chinese translated books in Taiwan is poor.  相似文献   
970.
Microfluidic spirals were used to successfully separate rare solid components from unpretreated human whole blood samples. The measured separation ratio of the spirals is the factor by which the concentration of the rare component is increased due to the Dean effect present in a flow profile in a curved duct. Different rates of dilution of the blood samples with a phosphate-buffered solution were investigated. The diameters of the spherical particles to separate ranged from 2 μm to 18 μm. It was found that diluting the blood to 20% is optimal leading to a separation ratio up to 1.97. Using two spirals continuously placed in a row led to an increase in separation efficacy in samples consisting of phosphate-buffered solution only from 1.86 to 3.79. Numerical investigations were carried out to display the flow profiles of Newtonian water samples and the shear-thinning blood samples in the cross-section of the experimentally handled channels. A macroscopic difference in velocity between the two rheologically different fluids could not be found. The macroscopic Dean flow is equally present and useful to help particles migrate to certain equilibrium positions in blood as well as lower viscous Newtonian fluids. The investigations highlight the potential for using highly concentrated, very heterogeneous, and non-Newtonian fluidic systems in known microsystems for screening applications.  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