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481.
Miller FA 《Social studies of science》2003,33(1):75-94
In 1961, a prestigious group of medical researchers called on their colleagues to stop using the language of 'Mongolism' to describe people with what we now call 'Down's syndrome' (or Trisomy 21). This call responded to new knowledge about the biological basis of Down's syndrome: rather than the product of racial degeneration, as had been hypothesized in the 19th century, the condition was the result of an extra chromosome, dubbed '21'. Yet, despite this plea, the terms 'Mongol' and 'Mongolism' continued in scientific use through the 1960s. Drawing on published and archival materials, I argue that the new knowledge about chromosomes did not rupture older patterns of scientific practice or interpretation, and with them, older terminological habits. The persistence of the language of Mongolism reflects the continuity of a network of older approaches to interpreting the condition within the community of human and medical geneticists, including an enduring diagnostic and interpretive technology, dermatoglyphics. Old networks were not supplanted; they were re-aligned. 相似文献
482.
483.
Connors-Kellgren Alice Parker Caroline E. Blustein David L. Barnett Mike 《Journal of Science Education and Technology》2016,25(6):825-832
Journal of Science Education and Technology - For over a decade, the National Science Foundation’s Innovative Technology Experiences for Students and Teachers (ITEST) program has funded... 相似文献
484.
Jonathan F. Zaff Alice Donlan Aaron Gunning Sara E. Anderson Elana McDermott Michelle Sedaca 《Educational Psychology Review》2017,29(3):447-476
A high school education prepares young people to participate positively in the economy and in civic life, among other positive life outcomes. However, nearly one in five American high school students does not graduate from high school on time, if ever. Progress has been made on understanding why students fail to complete high school and on raising graduation rates. Previous reviews and syntheses of this literature have focused on identifying factors that put students at risk for dropping out of school. Less is understood regarding what assets can promote high school graduation. Therefore, we reviewed research from the past 25 years on high school graduation, focusing on longitudinal, US-based studies of malleable factors that predict graduation. Through this systematic search, we identified 12 assets in individual, family, school, peer, and community contexts, which predict high school graduation, as well as identified assets for which more research is needed. Implications for policy and practice and directions for future research are discussed. 相似文献
485.
The present study examined the influence of race and gender on children's conversations and friendship choices. Four hundred and twenty-eight children (M age = 7.5 years, SD = 0.34) from 2 racial minority groups (i.e., African Caribbean and South Asian) and the racial majority group (i.e., European) chose a picture of a playmate together with a peer. Race influenced the levels of assertion and affiliation in children's conversations. The effects of race on conversation also varied according to the gender of the children involved in interaction. Same-race pairs tended to choose in-group playmates, but same-race minority pairs showed less marked in-group preference. Cross-race pairs selected a majority-group child as a playmate most often. 相似文献
486.
Barry A. Garst Ryan J. Gagnon Alice M. Brawley 《Journal of Adventure Education & Outdoor Learning》2019,19(1):12-27
Preparing competent staff is a critical issue within the camp community. This quasi-experimental study examined the effectiveness of an online course for improving staff competency in camp healthcare practices among college-aged camp staff and a comparison group (N = 55). We hypothesized that working in camp would increase competency test scores due to opportunities for staff to experientially apply knowledge learned online. Hierarchical linear modeling was used to analyse the cross-level effects of a between-individuals factor (assignment to experimental or comparison group) and within-individual effects of time (pre-test, post-test #1, and post-test #2) on online course test scores. At post-test #2, the difference in average test scores between groups was ~30 points, with the treatment group scoring lower on average than the comparison group. Factors that may have influenced these findings are explored, including fatigue and the limited durability of online learning. Recommendations for research and practice are discussed. 相似文献
487.
Anita Grover Tai Ning Lam C. Anthony Hunt 《Journal of Science Education and Technology》2008,17(4):366-372
We present a simulation tool to aid the study of basic pharmacology principles. By taking advantage of the properties of agent-based
modeling, the tool facilitates taking a mechanistic approach to learning basic concepts, in contrast to the traditional empirical
methods. Pharmacodynamics is a particular aspect of pharmacology that can benefit from use of such a tool: students are often
taught a list of concepts and a separate list of parameters for mathematical equations. The link between the two can be elusive.
While wet-lab experimentation is the proven approach to developing this link, in silico simulation can provide a means of
acquiring important insight and understanding within a time frame and at a cost that cannot be achieved otherwise. We suggest
that simulations and their representation of laboratory experiments in the classroom can become a key component in student
achievement by helping to develop a student’s positive attitude towards science and his or her creativity in scientific inquiry.
We present results of two simulation experiments that validate against data taken from current literature. We follow with
a classroom example demonstrating how this tool can be seamlessly integrated within the traditional pharmacology learning
experience. 相似文献
488.
489.
Group work has been increasingly encouraged and applied in Vietnamese universities. However, very little has been known about how Vietnamese university students work in a group and what the conditions are that help establish an effective group. This study attempted to redress this gap. The research applied Bourdieu’s social field theory to examine experiences of Vietnamese students in groups. It specifically explored Vietnamese students’ perceptions of interactions with ‘cultural and linguistic others’ and how their interactions were constrained and enabled by personal and contextual factors. Employing a qualitative research methodology, the study revealed that student interactions were strongly influenced by the rules set-up in the field, possessing capital resources valued in the field and disposition towards working with other cultures. 相似文献
490.
In this paper, we identify patterns of subject and qualification choices made at age 14. Much of the previous research on ‘subject choice’ has focussed on the later stages of educational trajectories, particularly Higher Education. However, the choices made at early branching points can limit pupils’ subsequent options, potentially contributing to educational inequalities. This paper identifies the patterns of General Certificate of Secondary Education (GCSE) subjects chosen by a cohort of young people born in 1989/1990. We make use of the Next Steps data (formerly the Longitudinal Study of Young People in England (LSYPE)) which is linked to the National Pupil Database. We develop an approach to measuring the academic selectivity of subjects and qualifications. We examine the roles of social class, parental education, income, gender and ethnicity in determining participation in these curriculum groupings. Using measures of prior attainment from age thirteen, we address the question of whether curriculum differentials simply reflect differences in prior attainment or whether they actually operate above and beyond existing inequalities. We find clear socio-economic, gender, ethnic and school-level differences in subjects studied which cannot be accounted for by prior attainment. 相似文献