首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   2540篇
  免费   117篇
  2020年   44篇
  2019年   55篇
  2018年   67篇
  2017年   60篇
  2016年   98篇
  2015年   66篇
  2014年   68篇
  2013年   677篇
  2012年   90篇
  2011年   76篇
  2010年   75篇
  2009年   69篇
  2008年   57篇
  2007年   50篇
  2006年   55篇
  2005年   33篇
  2004年   26篇
  2003年   31篇
  2002年   42篇
  2001年   39篇
  2000年   31篇
  1999年   31篇
  1998年   25篇
  1997年   31篇
  1996年   31篇
  1995年   29篇
  1994年   23篇
  1993年   30篇
  1992年   28篇
  1991年   23篇
  1990年   17篇
  1989年   22篇
  1988年   18篇
  1987年   27篇
  1986年   23篇
  1985年   25篇
  1984年   35篇
  1983年   25篇
  1982年   32篇
  1981年   22篇
  1980年   34篇
  1979年   28篇
  1978年   24篇
  1977年   20篇
  1976年   21篇
  1975年   17篇
  1973年   17篇
  1972年   18篇
  1971年   16篇
  1967年   18篇
排序方式: 共有2657条查询结果,搜索用时 15 毫秒
51.
52.
The localization or representation of mental abilities in the brain have always been considered as key questions for understanding the organization of the human nervous system. Particularly with the advent of modern electrophysiological and imaging techniques that provide maps of electromagnetic fields and metabolic processes on the living central nervous system, the representation theory is experiencing a scientific renaissance in neurology, but is only one theory, however, in the succession of a long philosophical tradition dealing with the possible identification of mental phenomena and brain processes. This dichotomy was formulated at the latest in the Cartesian dualism of res cogitans and res extensa of the mind-body problem. Nowadays philosophical discussion, on the contrary, is dominated by monistic concepts that attempt to explain the mental realm on an organic foundation in order not to succumb to the problem of a psychophysical dualism. Of these, the identity theory offers a philosophically plausible concept postulating that the identity of brain conditions and mental phenomena is based on organic foundations. In this theory, the efforts of brain research converge on the representations of mental phenomena in the human nervous system. In a comprehensive approach, both concepts could complement each other.  相似文献   
53.
From 1865 to about 1910 studies of the chemistry of the brain were afflicted by the hypothesis that cerebral lipid matter consisted of a giant molecule from which all the simpler lipids were derived as breakdown products. In successive periods the main proponents of this 'protagon' theory were Oscar Liebreich, Arthur Gamgee and William Cramer. The theory was disproved by the careful and detailed studies of JLW Thudichum whose work on the brain was described in many papers, government reports, and two outstanding monographs. The controversy involved rough moments, generated by both sides, but by 1910, a few years after his death, Thudichum was fully vindicated in his opposition to the protagon concept and his classification of brain lipids became the accepted standard for biochemistry as a whole.  相似文献   
54.
ABSTRACT. Data for 28 metropolitan areas over a 15-year period are used to determine the impacts of government spending, taxes, and public infrastructure on total employment and disaggregated employment. After carefully controlling for the government budget constraint we find that taxes are negatively related to total employment and education spending is positively related to total employment. Nevertheless, we find that it is difficult for metropolitan areas to influence the composition of their employment with government tax and expenditure policies. Moreover, at current levels of public infrastructure, marginal changes in infrastructure have no strong effect on employment.  相似文献   
55.
Book reviews     
THE MIND OF EAST ASIA, Lily Abegg. (338 pp. with Index). Translated from the German. Thames and Hudson; London, New York.

BRITAIN AND THE UNITED STATES: Problems in Co‐operation. A joint report prepared by Henry L. Roberts and Paul A. Wilson. London. Royal Institute of International Affairs. Pp. 224. Price 8/6 sterling. 1953.

D?R LAUTLOSE AUFSTAND. BERICHT VEBER DIE WIDER‐STANDSBEWEGUNG DES DEUTSCHEN VOLKES 1933–1945. Herausgegeben von Guenther Weissenborn. Rowohlt Verlag Hamburg. Pp. 348.

“EASTERN AND WESTERN WORLD”: Selected Readings with a foreword by S. Hofstra. Issued under the auspices of the Netherlands Foundation for International Co‐operation and published by W. Van Hoeve Ltd., The Hague, Bandung. 1953. Pp. 181.

NATIONALISM AND SOCIAL COMMUNICATION. By Karl W. Deutsch. John Wiley & Sons, N. Y. viii and 292.

BURMA UNDER THE JAPANESE: By Thakin Nu. Pictures and Portraits, Edited and translated with Introduction by J. S. Furnivall. Macmillan, London. 1954. Pp. xxviii and 132. Price 12s 6d.

COMMODITY TRADE AND ECONOMIC DEVELOPMENT—Report of a Committee appointed by the Secretary‐General, United Nations, Published by the United Nations, 1953.  相似文献   

56.
Book reviews     
MIDDLE EAST AND FAR EAST, Allan S. Walker, M.D., Ch.M., F.R.A.C.P. Published by the Australian War Memorial, Canberra. Obtainable at all booksellers, price 35/‐.

UNESCO, HUMANISM AND EDUCATION IN EAST AND WEST — Published in 1953 by the United Nations. 224 pages.

THE ALTERNATIVE (a dynamic approach to our relations with Asia). By John Burton, B.A., B.Ec., Ph.D., Sydney. Morgans Publications, 1954. PP. 116.

TING HSIEN — A North China Rural Community: By Sidney D. Gamble (Institute of Pacific Relations, New York, 1954). U.S. $6.50.

ZWISCHEN BEFREIUNG UND FREIHEIT. DER SONDERFALL OSTERREICH, by Karl Gruber. Verlag Ullstein. Wien, 1953.

AMERICAN ECONOMIC POLICY TOWARDS THE PHILIPPINES: By Shirley Jenkins — With an introduction by Claude A. Buss. Published under the auspices of the American Institute of Pacific Relations by Stanford University Press, California, 1954. P. 181.

THE ORIGINS OF PRUSSIA: By F. L. Carsten—Clarendon Press. Oxford, 1954. 309 pp., 1 map. (55/6 sterling).  相似文献   

57.
The Reception of Hayden White   总被引:1,自引:0,他引:1  
Evaluation of the influence of Hayden White on the theory of history ismade difficult by his preference for the essay form, valued for its experimental character, and by the need to find comparable data. A quantitative study of citations of his work in English and foreign-language journals, 1973–1993, reveals that although historians were prominent among early readers of Metahistory , few historical journals reviewed White'stwo subsequent collections of essays and few historians—except inGermany—cited them. Those historians who did tended still to cite Metahistory and often the parts of it devoted specifically to nineteenth-century historians.
Literary critics, on the other hand, were relatively late to discover White, but during the "narrative turn" of the 1970s and 1980s his work was important for students of the novel and the theater. Recognition of it was especially marked in Spanish-speaking countries and in Germany.
As a result, salient themes of White's later work—the ideological andpolitical import of narrativization, the "historical sublime," and writing in the "middle voice"—have largely gone unremarked by historians and philosophers. Both these groups have tended to be irritated by White's bracketing of questions of historical epistemology; some have accused him of effacing the line between fiction and history, while White's numerous literary readers have generally applauded his tendencies in thisdirection. White however has consistently maintained that there is a difference, although not the one conventionally postulated. His exploration of writing in the "middle voice" brings his work full circle, in that it promises a "modernist" realism appropriate for representing the "sublime" events of our century.  相似文献   
58.
Recent fieldwork has considerably increased our knowledge of early Holocene settlement in Southwest Arabia. Neolithic settlement occurred within an environmental context of increased monsoonal moisture that continued during the mid-Holocene. A now well-attested Bronze Age exemplified by village- and town-scale settlements occupied by sedentary farmers developed toward the end of the mid-Holocene moist interval. The high plateau of Yemen was an early focus for the development of Bronze Age complex society, the economy of which relied upon terraced rain-fed and runoff agriculture. On the fringes of the Arabian desert, the precursors of the Sabaean literate civilization have been traced back to between 3600 and 2800 B.P., and even earlier, so that a virtually continuous archaeological record can now be described for parts of Yemen. In contrast to the highlands these societies relied upon food production from large-scale irrigation systems dependent upon capricious wadi floods. Bronze Age settlement, while showing some links with the southern Levant, now shows equal or stronger linkages with the Horn of Africa across the Red Sea. Although some regions of Yemen show breaks in occupation, others show continuity into the Sabaean period when a series of major towns grew up in response to the incense trade with the north. It is now clear that these civilizations grew up on the foundations of earlier Bronze Age complex societies.  相似文献   
59.
Abstract. In postcommunist politics many of the ‘new national right’ political formations in Eastern Europe and the former Soviet Union have joined forces with the communist successor parties. Such a combination is, on the surface, a baffling mixture; how is it possible that two fundamentally different ideological approaches (nationalism and internationalist socialism) can coexist and actively cooperate to form such a potent political force? What are the conditions under which such political cooperation emerges? This article attempts to answer the above questions by, first, empirically testing the effects of several factors which might explain postcommunist–nationalist political cooperation. Second, the quantitative analysis is buttressed with a comparison of the Hungarian and Russian cases. The analysis indicates that the most important variable associated with the emergence of postcommunist–nationalist political cooperation is the effect of previous regime type.  相似文献   
60.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号