全文获取类型
收费全文 | 9422篇 |
免费 | 120篇 |
国内免费 | 6篇 |
专业分类
教育 | 6324篇 |
科学研究 | 1104篇 |
各国文化 | 326篇 |
体育 | 722篇 |
综合类 | 4篇 |
文化理论 | 62篇 |
信息传播 | 1006篇 |
出版年
2021年 | 86篇 |
2020年 | 122篇 |
2019年 | 176篇 |
2018年 | 217篇 |
2017年 | 253篇 |
2016年 | 218篇 |
2015年 | 152篇 |
2014年 | 189篇 |
2013年 | 1647篇 |
2012年 | 197篇 |
2011年 | 191篇 |
2010年 | 181篇 |
2009年 | 176篇 |
2008年 | 233篇 |
2007年 | 212篇 |
2006年 | 181篇 |
2005年 | 166篇 |
2004年 | 182篇 |
2003年 | 122篇 |
2002年 | 117篇 |
2001年 | 157篇 |
2000年 | 183篇 |
1999年 | 161篇 |
1998年 | 88篇 |
1997年 | 87篇 |
1996年 | 75篇 |
1994年 | 68篇 |
1993年 | 81篇 |
1992年 | 140篇 |
1991年 | 150篇 |
1990年 | 149篇 |
1989年 | 159篇 |
1988年 | 124篇 |
1987年 | 118篇 |
1986年 | 119篇 |
1985年 | 160篇 |
1984年 | 130篇 |
1983年 | 126篇 |
1982年 | 101篇 |
1981年 | 85篇 |
1980年 | 91篇 |
1979年 | 148篇 |
1978年 | 90篇 |
1977年 | 92篇 |
1976年 | 78篇 |
1975年 | 76篇 |
1974年 | 88篇 |
1973年 | 81篇 |
1971年 | 74篇 |
1968年 | 74篇 |
排序方式: 共有9548条查询结果,搜索用时 15 毫秒
981.
The authors examine the day-care center in Nigeria as a potential locus for child abuse and neglect by reanalyzing the data from available studies which were originally designed to assess quality of care in centers and not child abuse or neglect. A slightly modified version of the categories of abuse and neglect, delineated by Giovannoni and Becerra, is employed. Preliminary results suggest that substance abuse, verbal abuse and aspects of physical neglect related to housing and cleanliness of the facility may be the categories where research should be focused. The authors note the lack of normative data with reference to determining abuse and neglect in the Nigerian context. 相似文献
982.
Handling of preweanlings (Days 2–15) had substantial effects on the open-field behavior of rats when tested as adults. In general, handled rats reared more, ambulated more, and defecated less than nonhandled rats. However, the handling manipulation had no effect on the degree of negative contrast that occurred when rats were shifted from 32% to 4% sucrose. Experiments 2 and 3 showed that preweaning handling did not influence sucrose neophobia in two different test situations. These data, in conjunction with those of other studies, suggest that preweaning handling may have powerful but limited effects on adult behavior, and that these effects are probably not best characterized in terms of global concepts such as emotionality. 相似文献
983.
Vignettes depicting the physical mistreatment, psychological mistreatment and neglect of children were used in an experimental design to test for bias in perception and reportage of child abuse. Subjects were 160 jurors and 176 child protective service (CPS) and police personnel. Jurors born before 1945 were less critical of such mistreatment than those born later. Female jurors pledged to report mistreatment more often than did male jurors, and they pledged to report the abuse of a female victim more often than a male victim. The other groups did not show this bias in reporting. Findings might explain discrepancies between studies of the incidence of child abuse and reportage of it. 相似文献
984.
985.
David B. Hay Caroline Kehoe Marc E. Miquel Stylianos Hatzipanagos Ian M. Kinchin Steve F. Keevil Simon Lygo‐Baker 《British journal of educational technology : journal of the Council for Educational Technology》2008,39(6):1037-1056
This paper shows how concept mapping can be used to measure the quality of e‐learning. Six volunteers (all of them 3rd‐year medical students) took part in a programme of e‐learning designed to teach the principles of magnetic resonance imaging (MRI). Their understanding of MRI was measured before and after the course by the use of concept mapping. The quality of change in individuals' maps was assessed using criteria developed to distinguish between meaningful and rote‐learning outcomes. Student maps were also scored for evidence of conceptual richness and understanding. Finally, each map was compared directly with the content of the electronic teaching material. The results show that many of the student misconceptions were put right in the course of their learning but that many of the key concepts introduced in the teaching were ignored (or sometimes learnt by rote) by the students. This was because the teaching material locked these new ideas in structures and terminology that precluded meaning‐making among non‐experts. Our data suggest that students' prior knowledge is a key determinant of meaningful learning. We suggest that this must be acknowledged if the design and use of electronic teaching material is also to be meaningful. Ultimately, measures of student learning are the only authentic indicators of the quality of teaching through technology. 相似文献
986.
The Chinese Government Scholarship Program: An Effective Form of Foreign Assistance? 总被引:1,自引:0,他引:1
Dong Lili Chapman David W. 《International Review of Education/Internationale Zeitschrift für Erziehungswissenschaft/Revue internationale l'éducation》2008,54(2):155-173
International Review of Education - This study investigates the effectiveness of Chinese international education assistance through an examination of student experience in the Chinese Government... 相似文献
987.
Lili Dong David W. Chapman 《International Review of Education/Internationale Zeitschrift für Erziehungswissenschaft/Revue internationale l'éducation》2008,1(4):155-173
This study investigates the effectiveness of Chinese international education assistance through an examination of student
experience in the Chinese Government Scholarship Program, an important mechanism of Chinese foreign aid. Grounded in Pascarella’s
(1985) model of the impact of college on students, the study investigates participants’ level of satisfaction with their higher
education experience in China and their perception of the role of the scholarship program in promoting positive relationships
between China and the scholarship students’ home countries. Findings indicate that participants are generally satisfied with
their experiences in China and are positive about the impact of the program in building friendships with their home countries.
The authors discuss the implications of these findings in terms of China’s emerging prominence as a provider of international
development assistance. 相似文献
988.
Many adolescents are susceptible to negative outcomes associated with sexual behavior. This is particularly true for those who initiate sexual intercourse at an early age, have many sex partners, or engage in unprotected sex because these behaviors put one at risk for sexually transmitted infections (STIs), including HIV. This article reviews the various demographic, social‐contextual, and intrapersonal factors linked to sexual risk behaviors. Successful STI/HIV prevention programs must consider developmental and gender issues, as well as cultural norms and values, to effectively meet the prevention needs of all adolescents. We discuss the characteristics of effective intervention programs and provide the names and key features of empirically validated, school‐based STI/HIV prevention programs. In addition, we recommend specific roles for school psychologists in STI/HIV prevention efforts. Finally, other resources are provided to assist practitioners in their continuing review of STI/HIV prevention education. © 2007 Wiley Periodicals, Inc. 相似文献
989.
PhD students’ work conditions and study environment in university- and industry-based PhD programmes
During the last 10 years, new models of funding and training PhD students have been established in Denmark in order to integrate industry into the entire PhD education. Several programmes have been conducted where it is possible to co-finance PhD scholarships or to become an employee as an industrial PhD in a company. An important question is what impact these new conditions will have on the PhD students’ training, work conditions and study environment. In this article, the new type of programmes will be presented together with data analysis of PhD students’ work conditions and study environment in various programmes mainly based on a research project from 2006. The results of this study show no significant difference between PhD students in a traditional university PhD programme and PhD students in an industrial programme concerning working environment. However, the study shows significant differences in the intercultural dimension, where foreign PhD students are significantly more satisfied with their study environment compared with Danish PhD students. In general the workload is very high and the environment is stressful for all PhD students. 相似文献
990.