全文获取类型
收费全文 | 291篇 |
免费 | 6篇 |
国内免费 | 2篇 |
专业分类
教育 | 179篇 |
科学研究 | 41篇 |
各国文化 | 4篇 |
体育 | 37篇 |
文化理论 | 5篇 |
信息传播 | 33篇 |
出版年
2024年 | 1篇 |
2022年 | 3篇 |
2021年 | 8篇 |
2020年 | 2篇 |
2019年 | 8篇 |
2018年 | 9篇 |
2017年 | 6篇 |
2016年 | 9篇 |
2015年 | 7篇 |
2014年 | 7篇 |
2013年 | 55篇 |
2012年 | 12篇 |
2011年 | 10篇 |
2010年 | 8篇 |
2009年 | 12篇 |
2008年 | 17篇 |
2007年 | 10篇 |
2006年 | 4篇 |
2005年 | 7篇 |
2004年 | 3篇 |
2003年 | 8篇 |
2002年 | 5篇 |
2001年 | 4篇 |
2000年 | 3篇 |
1999年 | 3篇 |
1998年 | 4篇 |
1997年 | 4篇 |
1996年 | 3篇 |
1995年 | 2篇 |
1994年 | 8篇 |
1993年 | 5篇 |
1992年 | 4篇 |
1991年 | 5篇 |
1990年 | 7篇 |
1989年 | 1篇 |
1988年 | 5篇 |
1987年 | 2篇 |
1986年 | 3篇 |
1985年 | 6篇 |
1984年 | 1篇 |
1983年 | 2篇 |
1982年 | 1篇 |
1981年 | 4篇 |
1979年 | 1篇 |
1977年 | 1篇 |
1974年 | 1篇 |
1973年 | 3篇 |
1960年 | 1篇 |
1943年 | 2篇 |
1847年 | 2篇 |
排序方式: 共有299条查询结果,搜索用时 0 毫秒
21.
22.
The debate about whether the arts should be supported or not is far from new, and most governments support the arts in one
way or the other. The literature considers several arguments in favor of such interventions. Public education may seem to
be an action which could, in the long run, lead to possible reductions of subsidies. Surveys show that those who have been
exposed to the arts when young participate more when adult. However, the “non-market” transmission from parents to children
generates an external effect, which has to be taken into account to reach first-best situations. We construct an overlapping
generations model in which young consumers are exposed to both public education toward the arts and to non-altruistic transmission
of such a taste from their parents. We show that the first-best can be reached only if there is both public cultural education
and subsidization of arts consumption. Therefore, education cannot be considered as a substitute for subsidies to arts consumption.
However, as is often the case in European countries, government intervention is usually below the first-best level. Using
a model calibrated on French data, we show that it is then preferable to subsidize education, while consumption, especially
of the older generations, should be taxed rather than subsidized.
相似文献
Luc ChamparnaudEmail: |
23.
24.
25.
Dimov N Muñoz L Carot-Sans G Verhoeven ML Bula WP Kocer G Guerrero A Gardeniers HJ 《Biomicrofluidics》2011,5(3):34102-3410212
To prepare a biosynthetic module in an infochemical communication project, we designed a silicon/glass microreactor with anti-adsorption polyelectrolyte multilayer coating and immobilized alcohol acetyl transferase (atf), one of the key biosynthetic enzymes of the pheromone of Spodoptera littoralis, on agarose beads inside. The system reproduces the last step of the biosynthesis in which the precursor diene alcohol (Z,E)-9,11-tetradecadienol is transformed into the major component (Z,E)-9,11-tetradecadienyl acetate. The scope of this study was to analyze and implement a multilayer, anti-adsorption coating based on layer-by-layer deposition of polyethylenimine/dextransulfate sodium salt (PEI/DSS). The multilayers were composed of two PEI with molecular weights 750 and 1.2 kDa at pH 9.2 or 6.0. Growth, morphology, and stability of the layers were analyzed by ellipsometry and atomic force microscopy (AFM). The anti-adsorption functionality of the multilayer inside the microreactor was validated. The activity of His(6)-(atf) was measured by gas chromatography coupled to mass spectrometer (GC-MS). 相似文献
26.
27.
Michel Arrouays 《Higher Education in Europe》1996,21(2-3):49-55
The TEMPUS/PHARE Multilateral Programme was initiated in 1990 by the European Communities with a view to improving training by means of the structural reform of the higher education systems in the central and eastern European countries. The results are now widely visible. The question to be asked is whether or not these results are limited solely to the educational field or whether the improvement of training has not also had an impact on society and the economy. In the particular case of the central and eastern European countries that are currently moving from one social system to another, the task is one of finding out in what respects and to what extent the changes in the higher education systems have contributed to this transition. 相似文献
28.
29.
30.
European Journal of Psychology of Education - 相似文献