全文获取类型
收费全文 | 96篇 |
免费 | 4篇 |
出版年
2023年 | 1篇 |
2022年 | 1篇 |
2020年 | 1篇 |
2018年 | 10篇 |
2017年 | 3篇 |
2016年 | 4篇 |
2015年 | 2篇 |
2014年 | 1篇 |
2013年 | 24篇 |
2011年 | 2篇 |
2010年 | 3篇 |
2009年 | 2篇 |
2008年 | 1篇 |
2007年 | 2篇 |
2004年 | 3篇 |
2003年 | 3篇 |
2002年 | 3篇 |
2001年 | 2篇 |
1997年 | 1篇 |
1996年 | 3篇 |
1995年 | 2篇 |
1993年 | 2篇 |
1991年 | 1篇 |
1988年 | 1篇 |
1987年 | 2篇 |
1986年 | 2篇 |
1985年 | 1篇 |
1981年 | 1篇 |
1980年 | 1篇 |
1979年 | 2篇 |
1978年 | 1篇 |
1977年 | 1篇 |
1976年 | 1篇 |
1975年 | 1篇 |
1974年 | 3篇 |
1968年 | 2篇 |
1966年 | 1篇 |
1960年 | 3篇 |
排序方式: 共有100条查询结果,搜索用时 15 毫秒
31.
32.
“Funhouse” and “Big Celebration” of the Physicists. Walter Grotrian's ?Physical One‐Act Play”? for Max Planck's 80th Birthday. On the occasion of Max Planck's 80th birthday on April 23, 1938, a “big celebration of the physicists” (großes Fest der Physiker) was celebrated at the Harnack‐House in Berlin. The festivities were organized by the German Physical Society. Part of the ceremony was a “Physical One‐act‐play” (Physikalischer Einakter) written by the Potsdam astrophysicist Walter Grotrian. The actors of the humorous play were chief protagonists in the development of quantum theory such as Debye, Sommerfeld and Heisenberg. In this essay we analyze Grotrian's drama against the background of both the festive event and the professional and social setting of the physicists. We argue that below the level of comedy a number of characteristic and normally unexpressed aspects of the epistemic culture of the German physics by the end of the nineteen‐thirties is treated in the play. 相似文献
33.
Ashok Aklujkar Per Kvaerne Melvyn C. Goldstein Helmut Eimer 《Indo-Iranian Journal》1979,21(3):191-212
34.
35.
Per G. Fredriksson Satyendra Kumar Gupta Weihua Zhao Jim R. Wollscheid 《Journal of regional science》2023,63(1):236-252
This paper studies the effect of legal origins (common law vs. civil law) on contemporary slum formation in developing countries. First, we provide a cross-country correlation analysis. Second, we provide a regression discontinuity analysis using household data from Cameroon. The results suggest that a common law heritage is associated with a lower probability of slum conditions. The legal philosophies transplanted through colonization appear to be associated with the pattern of contemporary urban housing stocks in developing countries. 相似文献
36.
Anna‐Karin Tunemalm PhD Per Lind PhD Mohammad Fazlhashemi PhD 《Domes : digest of Middle East studies》2014,23(1):15-36
Iran's scientific impact has suffered hard from decades of imposed and self‐elected isolation from Western influences and international collaboration. Lately, however, the world has witnessed a remarkable increase in scientific publications from Iranian scientists in fields like nanotechnology; material science; and, perhaps most pronounced, chemistry. In this article, the factors behind this “publication boom” are discussed and examined together with an analysis of the coherence between the country's long‐term research strategies and short‐term needs in relation to present organic chemical research conducted at various Iranian universities and institutes. Organic chemistry is a keystone in important Iranian industrial sectors like the petroleum and agricultural industries, and also in the growing field of life science and pharmacology. The development of the petroleum industry and further refinement of raw oil into value‐added fine chemicals holds a key position in the reinforcement of the Iranian economy and labor market, thus motivating a governmental investment in chemical science and research. Taking an approach to find a reasonable balance with the impact from Western and Far Eastern scientific communities, Iran's own scientific roots and Islamic ideology could well be the success factor in becoming a worthy player on the international scientific arena. 相似文献
37.
38.
39.
40.
During the last two decades, film support, film policy and the public financing of audiovisual production in Scandinavia and particularly Sweden have undergone extensive change. These transformations may be seen as responses to globalisation, to increased sub-national regional independence as well as to the emergence of ideas related to the nurturing of the ‘creative industries’. They may also be seen to be a consequence of the increasing permeability of the borders of European nation-states. This article traces a history of film policy in a geographically marginal part of Europe that has been characterised by a range of tensions as a result of competing definitions of film as art and commerce. These tensions are traced back to the 1960s when film support were first introduced and the first seeds of conflict – still discernible in the present situation – were planted. 相似文献