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   1986篇
  免费   25篇
教育   1494篇
科学研究   80篇
各国文化   31篇
体育   145篇
综合类   1篇
文化理论   43篇
信息传播   217篇
  2022年   14篇
  2021年   14篇
  2020年   30篇
  2019年   35篇
  2018年   40篇
  2017年   45篇
  2016年   55篇
  2015年   38篇
  2014年   46篇
  2013年   504篇
  2012年   59篇
  2011年   56篇
  2010年   45篇
  2009年   34篇
  2008年   48篇
  2007年   51篇
  2006年   43篇
  2005年   44篇
  2004年   41篇
  2003年   52篇
  2002年   33篇
  2001年   24篇
  2000年   29篇
  1999年   27篇
  1998年   20篇
  1997年   21篇
  1996年   34篇
  1995年   28篇
  1994年   24篇
  1993年   30篇
  1992年   27篇
  1991年   31篇
  1990年   21篇
  1989年   21篇
  1988年   14篇
  1987年   14篇
  1986年   26篇
  1985年   24篇
  1984年   13篇
  1983年   20篇
  1982年   25篇
  1981年   21篇
  1980年   16篇
  1979年   22篇
  1978年   20篇
  1977年   13篇
  1976年   12篇
  1974年   13篇
  1973年   11篇
  1971年   17篇
排序方式: 共有2011条查询结果,搜索用时 15 毫秒
41.
Four instructional treatments differing in structure and student responsibility were used with 60 abstractthinking and 60 concrete-thinking students. As predicted, abstract students preferred those treatments with less structure and more responsibility; however, abstract and concrete students showed similar achievement levels as a result, of each treatment. The differentiated outcomes hypothesis is offered to account for the findings.
Résumé Quatre méthodes de traitement pédagogique de structure et de responsabilité des étudiants ont été employées avec 60 étudiants pensant abstraitement et 60 étudiants pensant de manière concrète. Ainsi que prévu, les étudiants pensant abstraitement préféraient les méthodes ayant moins de structure et plus de responsabilité. Les deux catégories d'étudiants ont toutefois obtenu des niveaux d'accomplissement pareils avec chaque méthode de traitement. L'hypothèse des aboutissements différenciés est offerte comme explication des conclusions.


This study was based in part on the doctoral dissertation of the junior author. The authors would like to thank the students and staff of the County College of Morris, Morristown, N.J., for their cooperation.  相似文献   
42.
Various initiatives over the past 40 years have aimed to strengthen children’s early learning and social development. One policy theory—manifest in recent welfare reforms—postulates that requiring single mothers to work more outside the home will advance children’s well-being. We first examine whether young children’s social development is related to maternal employment among 405 women who entered welfare-to-work programs in 1998. For girls, age 24–42 months, we found that their mother’s recent employment duration was significantly associated with a lower incidence of aggressive behavior and inattentiveness, measured by two scales from the Child Behavior Checklist (CBCL 2/3). Yet these relationships with employment were weaker than more robust associations observed for proximal child-rearing practices, including the frequency of reading with the child, enforcing a regular bedtime, the propensity to spank the child, as well as levels of maternal depression. We then assess whether broader measures of the mother’s economic security help to predict these proximal determinants of development. We observed that food security and indicators of job quality consistently predicted the proximal factors. Structural equation models (SEM) provided additional evidence that these broader indicators of economic security, but not recent employment per se, operated through parenting practices and maternal depression to influence girls’ and boys’ social development. These results are consistent with recent findings from random-assignment experiments, showing that employment gains rarely affect child outcomes unless mothers’ income and broader economic security also improve.  相似文献   
43.
This research investigated the sources of explanations and understanding of natural phenomena in terms of the students’ cultural and school science experiences. The first phase involved interviews with eight village elders that probed their explanations and understanding of natural phenomena. The second phase involved the design, development and administration of two questionnaires on natural phenomena to 179 students in a rural boarding high school in Papua New Guinea (PNG). Most village elders gave explanations of many of the phenomena in terms of spirits, spells, magic, religion, and personal experiences. Most school-aged students choose scientific explanations of natural phenomena in terms of what they had learned in school or from personal experiences. However, many choose explanations of the same phenomena about spirits, spells and magic that came from the village, family or home. The study revealed that students’ ideas about natural phenomena are strongly governed and controlled by their school science knowledge in the school setting. It is likely that their own traditional knowledge cannot be identified in a school setting but that questionnaires in the students’ local language be given to students in their villages (as opposed to school). In addition, so as not to diminish the value of this traditional knowledge, science education programs are needed that are able to consider and harmonise traditional knowledge with school science.  相似文献   
44.
Initial intervention processes for children with intellectual disabilities (IDs) largely focused on direct efforts to impact core cognitive and academic deficits associated with the diagnosis. Recent research on risk processes in families of children with ID, however, has influenced new developmental system approaches to early intervention. Recent risk and resilience processes are reviewed that connect stress, family process, and the high rates of behavioral problems in children with ID that have substantial influence on child and family outcomes. These models are linked to emerging evidence‐based intervention processes that focus on strategic parent skill training and mindfulness interventions that reduce parental stress and create indirect benefits for children's behavioral competencies. A family‐focused developmental systems approach (M. J. Guralnick, 2011) is emphasized.  相似文献   
45.
A century before the outbreak of bovine spongiform encephalopathy (BSE), Great Britain and North America grappled with pleuro-pneumonia - a disease in cattle that had equally maddening consequences. Towards the end of the 19th century, this condition was at the heart of a transatlantic trade dispute that lasted for decades and attracted the attention of livestock farmers, diplomats, shipping moguls, veterinarians, public health regulators and journalists the world over. Scientific controversy aggravated the situation when there were doubts about the scientific judgment of Privy Council veterinary officials, who were simultaneously conducting disease-diagnosis activities and pushing for tighter regulations at British ports. At this point, William Williams, principal of the New Veterinary College in Edinburgh, waded into this troubled arena. His strong convictions spawned a long-running disagreement with the British Government over the diagnoses of pleuro-pneumonia in cattle imported from the USA and Canada.  相似文献   
46.
Objectives: To explore how the library service expectations and perceptions of users might differ across health‐related libraries as against major research libraries not operating in a medical context; to determine whether users of medical libraries demand better library service quality, because the inability of users to access needed literature promptly may lead to a patient who cannot be properly diagnosed, or a diagnosis that cannot be properly treated. Methodology: We compared LibQUAL+® total and subscale scores across three groups of US, Canadian and British libraries for this purpose. Results: Anticipated differences in expectations for health as other library settings did not emerge. Conclusions: The expectations and perceptions are similar across different types of health science library settings, hospital and academic, and across other general research libraries.  相似文献   
47.
Over the last decade, researchers have developed sophisticated online learning environments to support students engaging in dialogic argumentation. This review examines five categories of analytic frameworks for measuring participant interactions within these environments focusing on (1) formal argumentation structure, (2) conceptual quality, (3) nature and function of contributions within the dialogue, (4) epistemic nature of reasoning, and (5) argumentation sequences and interaction patterns. Ultimately, the review underscores the diversity of theoretical perspectives represented within this research, the nature of dialogic interaction within these environments, the importance of clearly specifying theoretical and environmental commitments throughout the process of developing or adopting an analytic framework, and the role of analytic frameworks in the future development of online learning environments for argumentation.
Douglas B. ClarkEmail:
  相似文献   
48.
We have developed experiments and materials to model human genetics using rapid cycling Brassica rapa, also known as Fast Plants. Because of their self-incompatibility for pollination and the genetic diversity within strains, B. rapa can serve as a relevant model for human genetics in teaching laboratory experiments. The experiment presented here is a paternity exclusion project in which a child is born with a known mother but two possible alleged fathers. Students use DNA markers (microsatellites) to perform paternity exclusion on these subjects. Realistic DNA marker analysis can be challenging to implement within the limitations of an instructional lab, but we have optimized the experimental methods to work in a teaching lab environment and to maximize the “hands-on” experience for the students. The genetic individuality of each B. rapa plant, revealed by analysis of polymorphic microsatellite markers, means that each time students perform this project, they obtain unique results that foster independent thinking in the process of data interpretation.  相似文献   
49.
Women constitute just over one fifth of full professors in UK higher education and whilst work has emerged in recent years on professors as leaders, there has been comparatively little research about how this under-represented cadre define and practise their role as intellectual leaders. This paper seeks to analyse how women see their role as full professors through autobiographical accounts of their intellectual and career histories via interviews with women professors, and a small comparison group of male professors. A range of freedoms and responsibilities connected with the professorial role are identified along with personal qualities considered central to success. Both female and male professors understand their role principally in terms of research leadership, but women are more likely to emphasise the importance of academic citizenship, especially mentoring, compared to their male counterparts, an obligation that weighs especially heavily on women working in science, technology, engineering and mathematics areas. While these findings are indicative of the continuing effect of so-called ‘academic housework’ in holding back the academic careers of women, they are also a positive indicator of a commitment to an all-round role as an intellectual leader.  相似文献   
50.
This article makes the claim that developing ethnographic work through follow-up interviews can add to our understanding of researched phenomena and explores how using concepts from Bourdieu and theories on the social construction of time strengthen the research design and add a stronger longitudinal diachronic element to data analysis. Extending an ethnographic study of learning to teach by interviewing respondents nine years after the study and after the completion of their teacher education course is shown to develop insights around the initial research findings by focusing on the temporal aspects of data. Adopting this methodological approach can develop small-scale qualitative work and contribute to an accumulation of research findings to avoid simply revisiting familiar research ground.  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