全文获取类型
收费全文 | 529篇 |
免费 | 6篇 |
专业分类
教育 | 383篇 |
科学研究 | 36篇 |
各国文化 | 7篇 |
体育 | 56篇 |
综合类 | 1篇 |
文化理论 | 6篇 |
信息传播 | 46篇 |
出版年
2023年 | 6篇 |
2022年 | 5篇 |
2021年 | 7篇 |
2020年 | 13篇 |
2019年 | 29篇 |
2018年 | 28篇 |
2017年 | 25篇 |
2016年 | 20篇 |
2015年 | 13篇 |
2014年 | 27篇 |
2013年 | 105篇 |
2012年 | 18篇 |
2011年 | 14篇 |
2010年 | 13篇 |
2009年 | 12篇 |
2008年 | 9篇 |
2007年 | 9篇 |
2006年 | 8篇 |
2005年 | 11篇 |
2004年 | 14篇 |
2003年 | 8篇 |
2002年 | 7篇 |
2001年 | 3篇 |
2000年 | 6篇 |
1999年 | 6篇 |
1998年 | 6篇 |
1997年 | 4篇 |
1996年 | 10篇 |
1995年 | 11篇 |
1993年 | 6篇 |
1990年 | 2篇 |
1989年 | 2篇 |
1988年 | 7篇 |
1987年 | 2篇 |
1986年 | 4篇 |
1985年 | 2篇 |
1983年 | 2篇 |
1982年 | 7篇 |
1981年 | 4篇 |
1980年 | 3篇 |
1979年 | 4篇 |
1978年 | 5篇 |
1977年 | 4篇 |
1976年 | 2篇 |
1975年 | 3篇 |
1974年 | 3篇 |
1973年 | 2篇 |
1969年 | 6篇 |
1967年 | 3篇 |
1948年 | 2篇 |
排序方式: 共有535条查询结果,搜索用时 343 毫秒
71.
Pigeons were trained to depress a treadle in the presence of a discriminative stimulus, either a tone or illumination of red houselights, in order to obtain access to grain or avoid electric shock. In avoidance training, the auditory discriminative stimulus yielded faster acquisition than did the visual one. In appetitive training, the visual discriminative stimulus yielded faster acquisition than the auditory one. Experiments 2 and 3 used these stimuli in Kamin’s (1969) blocking design. In Experiment 2, when the pigeons were trained to depress a treadle in the presence of tone to obtain grain and then red light was added as the redundant stimulus, the light acquired stimulus control over treadlepressing; blocking was not observed. In Experiment 3, when the pigeons were trained to depress a treadle in the presence of red light to avoid electric shock and then tone was added as the redundant stimulus, the tone acquired stimulus control over treadle-pressing. Again, blocking was not observed. The implications of these results for several models of stimulus control are discussed. 相似文献
72.
73.
Research into sighted children’s reading shows that letter recognition skill predicts phonological awareness skill. Congenitally–blind children do not receive exposure to environmental print and do not generally learn to recognise written letters of the alphabet prior to schooling in Braille. A cross–sectional analysis revealed that blind children with no knowledge of written letters or written words showed no ability at measures of phonological awareness. Blind children with knowledge of written letters and no written words showed much increased phonological awareness scores and blind children with knowledge of written letters and written words scored higher still on phonological awareness measures. It was concluded that letter learning is a major contributor to the development of phonological awareness in blind children. It suggests key similarities in the underlying processes of reading development across two different populations using different modalities to learn to read. 相似文献
74.
Norzaini Azman Morshidi Sirat Vincent Pang Yew Meng Lai Anantha Raman Govindasamy Wardatul Akmam Din 《Journal of Higher Education Policy & Management》2019,41(1):86-103
University–Industry Collaboration (UIC) has been identified as an essential item on Malaysia’s agenda for transforming itself into knowledge and innovation-based economy. However, despite the efforts, most initiatives have had limited results. This paper reports on an explorative study that sought to understand the contemporary realities of UIC in the Malaysian context. In particular, the study identified the expectations and impediments to UIC, from the perspectives of three groups of stakeholders – the academics, the industry players and policymakers. The findings reveal a number of barriers, including cultural differences, perceived lack of academic expertise and reputation, an inadequacy of institutional policies and regulations, lack of trust, issues of intellectual property rights, and the lack of an appropriate reward system. This paper concludes by proposing policy recommendations and strategies that could be used by the government, university, and the industry to promote further and foster university-industry collaborative opportunities and initiatives. 相似文献
75.
Vincent Tinto 《Research in higher education》1975,3(3):261-274
This paper presents the results of a study to determine the effect of the presence of a public junior college in a community upon the types of colleges attended by high school graduates of that community. Results of multivariate cross-tabular analysis of the college destinations of over 8,000 1966 Illinois high school seniors of different sex, ability, and social-status backgrounds living in 25 different communities, suggest that the local availability of a public junior college serves largely to alter patterns of college-going by substituting attendance locally for attendance elsewhere in a manner inversely related to social status. More importantly, results also suggest that among lower- and middle-status persons the substitution is such as to replace attendance at nonlocal four-year colleges with attendance locally at the public junior college. 相似文献
76.
Understanding that mathematics is founded on reasoning and is not just a collection of rules to apply is an important message
to convey to students. Here we examined the reasoning presented in seven topics in nine Australian eighth-grade textbooks.
Focusing on explanatory text that introduced new mathematical rules or relationships, we classified explanations according
to the mode of reasoning used. Seven modes were identified, making a classification scheme which both refined and extended
previous schemes. Most textbooks provided explanations for most topics rather than presenting “rules without reasons” but
the main purpose appeared to be rule derivation or justification in preparation for practise exercises, rather than using
explanations as thinking tools. Textbooks generally did not distinguish between the legitimacies of deductive and other modes
of reasoning. 相似文献
77.
Selmaoui Sabah Agorram Boujemaa Khzami Salah-Eddine EL Abboudi Taoufik Berger Dominique 《美中教育评论》2010,7(8):28-36
Conceptions are analyzed as being the emergences from interactions between three poles: scientific knowledge (K), values (V) and social practices (P). The teachers' beliefs and values have a direct influence on the way of understanding and teaching a topic. These beliefs must be taken into account in the content and strategies of the teacher's formation. In this paper, the authors discuss the importance of studying and analyzing these conceptions and present the results of the research on teachers' and future teachers' conceptions about sexual health education. In this topic, the conceptions could be deeply rooted not only in scientific knowledge but also in value systems and social practices, because teachers often refuse to teach the ethical, psychological, economic and social issues not strictly reducible to biology, such as sexuality health. The authors used a questionnaire prepared jointly within the European project Biohead-Citizen. 相似文献
78.
Mathieu Plautard Gaël Guilhem Vincent Fohanno Antoine Nordez Christophe Cornu 《Sports biomechanics / International Society of Biomechanics in Sports》2018,17(3):287-302
Compared to isokinetic and isometric tests, isoinertial movements have been poorly used to assess single-joint performance. Two calculation procedures were developed to estimate mechanical performance during single-joint isoinertial movements performed on a customised isokinetic dynamometer. The results were also compared to appreciate the effects of measurement systems and calculation procedures. Five participants performed maximal knee extensions at four levels of resistance (30, 50, 70 and 90% of the one-repetition maximum, 1-RM). Joint angular velocity and torque were assessed from customised isokinetic dynamometer measures (method A) and from weight stack kinematic (method B). Bland–Altman plots and mean percent differences (Mdiff) were used to assess the level of agreement for mean and peak angular velocity and torque. A Passing–Bablok regression was performed to compare the angular velocity-angle and torque-angle relationships computed from the two analysis methods. The results showed a high level of agreement for all mechanical parameters (Mdiff < 6% for all parameters). No statistically significant differences were observed between methods A and B in terms of angular velocity-angle and torque-angle relationships except at 30% of 1-RM for the torque-angle relationship. Both methodologies provide comparable values of angular velocity and torque, offering alternative approaches to assess neuromuscular function from single-joint isoinertial movements. 相似文献
79.
Despite ongoing efforts to promote ethnic, racial and socio-economic integration, segregation continues to challenge education administrators and legal scholars. Privileged parents seeking to avoid integration employ various strategies such as attending private schools or buying houses in neighbourhoods with good school. This paper offers a combined empirical and legal research of another such strategy: the resort to religious schools. The research is conducted within one specific context, that of Israeli Religious State Schools. The empirical study examines whether “Torani” religious state schools (a category of religious schools that offer enhanced Jewish studies and a strict religious environment) induce socio-economic segregation. The findings indicate that “Torani” schools are indeed socio-economically segregated and serve children from higher socioeconomic class than regular religious state schools. It also shows that “Torani” schools are less reflective of their surroundings than regular religious state schools, and are more likely to be established by privileged parents in poor areas, where they are dissatisfied with the local state schools. The legal research offers an explanation of how legal regulation can determine whether religious schools will become a means for avoiding integration. Specifically, it points to three areas in which “Torani” schools are regulated differently than regular religious state schools – the rules regarding the establishment of new schools; the rules concerning school funding; and the rules concerning student enrolment – and argues that special treatment meant to protect religious interests is responsible for making “Torani” schools socially segregated. 相似文献
80.
This paper explores the possible job creation effect of innovation activity. We analyze a unique panel dataset covering almost 20,000 patenting firms from Europe over the period 2003–2012. The main outcome from the proposed GMM-SYS estimations is the labor-friendly nature of innovation, which we measure in terms of forward-citation weighted patents. However, this positive impact of innovation is statistically significant only for firms in the high-tech manufacturing sectors, while not significant in low-tech manufacturing and services. 相似文献