全文获取类型
收费全文 | 242篇 |
免费 | 0篇 |
专业分类
教育 | 187篇 |
科学研究 | 17篇 |
各国文化 | 3篇 |
体育 | 5篇 |
文化理论 | 2篇 |
信息传播 | 28篇 |
出版年
2022年 | 2篇 |
2020年 | 2篇 |
2019年 | 2篇 |
2018年 | 6篇 |
2017年 | 4篇 |
2016年 | 6篇 |
2015年 | 2篇 |
2014年 | 10篇 |
2013年 | 82篇 |
2012年 | 3篇 |
2009年 | 3篇 |
2008年 | 2篇 |
2007年 | 6篇 |
2006年 | 2篇 |
2004年 | 7篇 |
2003年 | 4篇 |
2001年 | 2篇 |
2000年 | 2篇 |
1999年 | 2篇 |
1997年 | 2篇 |
1996年 | 2篇 |
1995年 | 3篇 |
1993年 | 2篇 |
1992年 | 5篇 |
1991年 | 6篇 |
1990年 | 3篇 |
1987年 | 2篇 |
1986年 | 2篇 |
1985年 | 2篇 |
1984年 | 2篇 |
1983年 | 2篇 |
1981年 | 3篇 |
1979年 | 2篇 |
1978年 | 6篇 |
1977年 | 4篇 |
1975年 | 9篇 |
1973年 | 2篇 |
1971年 | 2篇 |
1969年 | 2篇 |
1968年 | 3篇 |
1967年 | 3篇 |
1960年 | 2篇 |
1957年 | 2篇 |
1922年 | 1篇 |
1917年 | 1篇 |
1906年 | 1篇 |
1904年 | 1篇 |
1892年 | 1篇 |
1890年 | 1篇 |
1852年 | 1篇 |
排序方式: 共有242条查询结果,搜索用时 15 毫秒
61.
Eugene Chng 《Journal of Cultural Heritage》2009,10(4):458-470
Advances in computing hardware coupled with its software counterparts have, for the past decades, influenced to a greater extent both the workflow of archaeologists and their interpretation of archaeological data. On the leisurely periphery, the synergy that arises between entertainment demands and commercial driven developments of interactive 3D (i3D) computer games has pushed these technologies beyond the expectations of the Virtual Reality (VR) community. This phenomenal growth in useable technology and its proportionate decrease in price have benefited the applicability of VR which in turn, have made it more accessible for researchers wishing to harness its benefits. The last 10 years have seen a steady increase in the use of VR technology to restore, preserve, reconstruct, recreate, and visualise ancient sites, monuments and artefacts. But, is technology ready for virtual time travel (VTT)? This article examines the possibility of experiential archaeology in voltage and silicon with the aim of formulating a strategy for VTT. 相似文献
62.
Eugene M. RasmussonPh.D. 《Endeavour》1987,11(4)
Prospects for drought prediction up to a few seasons in advance seem a bit brighter than a decade ago. This is due in part to advances in the numerical modelling of the coupled atmosphere-ocean-land surface system, and is particularly true for the tropics, where a better understanding of the relationship between sea surface temperature anomalies and interannual climate variability has emerged. On longer time-scales, efforts to predict runs of predominantly dry years or multi-year trends in precipitation will continue to be hazardous and highly controversial until the controlling processes are better understood. 相似文献
63.
64.
65.
66.
67.
68.
Eugene R. Delay 《Learning & behavior》1986,14(4):427-434
In the first experiment, using within- and between-sensory modality CSs, direct and reversal transfer of active avoidance learning was studied in 48 male and 48 female albino rats. Training in each of two sessions employed either a high- or low-intensity light or noise CS. The analyses of both raw score data and proportional or savings score data indicated significant cross-modal transfer in direct as well as reversal learning conditions. Although females learned faster than males, there were no sex differences in amount of transfer. A second experiment, which examined the potential of compound conditioning within the cross-modal learning procedures, replicated the cross-modal results of the first experiment without finding evidence for compound conditioning. These results are interpreted in terms of specific and nonspecific transfer effects during avoidance learning. 相似文献
70.
A major reason for the lack of scientific and technological literacy in this country is the lack of emphasis on high-quality science education at the elementary school level. The National Science Board Commission on Precollege Education in Mathematics, Science, and Technology states in its report (1983) that formal study of science must be reinforced by a wide range of activities outside the school. Learning in the home appears to be an excellent way to enhance elementary school science programs. Students who study with their parents or whose parents are involved in school activities achieve more in school. This study describes and presents evaluation data for a program that encourages elementary school students and their parents to study science topics in a hands-on, inquiry fashion in their own homes. The analyses of the data indicate that the program is viewed very positively by both the students and their parents, that there are gender and grade-level differences in the students, and that the program seems to be more effective for girls, a group at risk for continuing in science. 相似文献