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   5031篇
  免费   164篇
  2023年   20篇
  2021年   16篇
  2020年   71篇
  2019年   113篇
  2018年   392篇
  2017年   364篇
  2016年   364篇
  2015年   106篇
  2014年   107篇
  2013年   1155篇
  2012年   113篇
  2011年   233篇
  2010年   282篇
  2009年   142篇
  2008年   159篇
  2007年   145篇
  2006年   77篇
  2005年   91篇
  2004年   77篇
  2003年   75篇
  2002年   64篇
  2001年   61篇
  2000年   51篇
  1999年   45篇
  1998年   40篇
  1997年   48篇
  1996年   28篇
  1995年   33篇
  1994年   36篇
  1993年   28篇
  1992年   34篇
  1991年   31篇
  1990年   27篇
  1989年   18篇
  1988年   27篇
  1987年   26篇
  1986年   24篇
  1985年   42篇
  1984年   34篇
  1983年   42篇
  1982年   32篇
  1981年   35篇
  1980年   25篇
  1979年   37篇
  1978年   35篇
  1977年   22篇
  1976年   28篇
  1975年   23篇
  1974年   24篇
  1973年   14篇
排序方式: 共有5195条查询结果,搜索用时 31 毫秒
71.
An examination of the surface deposit of an Etruscan cup said to have been dug up in Cheshire suggests instead that it had been buried in Italy and brought to England in recent times. The method described here might usefully be employed to assess the provenance of buried artefacts.  相似文献   
72.
73.
ABSTRACT. Average monthly price data from twelve hinterland markets and the Houston port price for wheat are studied in a cointegration framework using the Engle-Granger "two-step" procedure and Johansen's maximum likelihood procedure. Out-of-sample forecasts from an error correction model are compared to those from a vector autoregression fit to levels and a univariate autoregression fit to first differences. This comparison suggests that modeling these (cointegrated) data as a levels vector autoregression, rather than as an error-correction process, results in significantly higher error bias, but lower error variance, at long horizons.  相似文献   
74.
The special number of the Canadian Geographer devoted to West Edmonton Mall raises important questions, notably that of the relative status, as values, of work (seen historically as fundamental to our culture), and of leisure, perceived, albeit controversially, as being embodied in wem. In preparing to present my principal thesis, I review recent reinterpretations of human behaviour advanced by workers in the fields of symbolic interaction and the sociology of knowledge. These schools ha ve given rise to the concept of, though not the term, functional religion. The meaning of this concept is close to that of ideology; a comparative analysis of the two terms justifies using the former. A survey of recent work by geographers who approach religion from a functional point of view closes the second part of the paper. In the course of this review the relative status of work and leisure emerges as a significant issue. The view of leisure as a norm presented in the third part of the paper is that advocated by Pieper, Huizinga, and de Grazia. They argue that the Classical view, according to which human life finds its meaning in activities that are carried on for their own sake (e.g., games), rather than in those pursued for the material rewards they offer, is correct. Following their lead, and in opposition to both Marxists and Liberals, I argue that the adoption of leisure as a fundamental value would provide a more satisfactory foundation for our culture than work has to this point. Le numéro spécial du Géographe canadien consacréà?étude du West Edmonton Mall soulève plusieurs questions importantes, notamment celle du statut relatif, comme valeur, du travail (valeur-clé historiquement dans notre culture) et du loisir, valeurs incarnées, bien que de façon controversées, dans le WEM. Pour établir les bases de la thèse principale, on examine les réinterprétations récentes du comportement hurnain avancées, dans les sciences humaines, par des chercheurs travaillant dans les domaines de ?interaction symbolique et la sociologie du savoir. Ces écoles ont engendré le concept, sinon le terme, de la religion fonctionelle. Le sens de ce terme est proche de celui de ?idéologie; une analyse comparative des deux termes justifie ?emploi du premier. Pour conclure la deuxièrne partie de ce mémoire, on passe en revue quelques écrits récents par des géographes qui abordent la religion ?un point de vue fonctionnel. De cet examen il ressort que le statut relative du travail et du loisir est ?une importance capitale. Dans la troisième partie, on présente une perspective sur le loisir qui est proche de celle qu'avancent Pieper, Huizinga, et de Grazia. Ceux-cisupportent la position des auteurs classiques, selon qui la vie humaine trouve sa signification dans les activités entreprises pour ellesměmes (par exemple, les jeux) plutǒt que pour le gain matériel. Appuyant leur argument, et m'opposant à celui des marxistes et des libéraux, je prétends que ?adoption du loisir comme vaieur fondamentale fournirait une meilleure assise à notre culture que celle offerte jusqu'ici par le travail.  相似文献   
75.
The tremendous fluctuations in public mobilization against United States nuclear weapons policy, a relatively stable policy over four decades, present a difficult riddle to social scientists. Since the dawn of the nuclear age small groups of activists have consistently protested both the content of United States national security policy and the process by which it is made. Only occasionally, however, has this protest spread beyond a handful of relatively marginal groups, generated substantial public support, and reached mainstream political institutions. This article examines the political cycles of peace movement engagement and quiescence, and their relation to external political context, particularly public policy. I begin with a brief review of the relevant literature on the origins of the movements, noting parallels in the study of interest groups. Building on recent literature on political opportunity structure. I suggest a theoretical framework which emphasizes the interaction between activists choices and political context. I then describe the cycles of peace movement activism and quiescence on nuclear weapons issues in the United States using mass media sources to delineate periods of mobilization. I outline a number of policy variables which may help explain protest mobilization. My conclusions address the importance of policy and political context in explaining movement cycles and the potential influence of protest movements on policy.  相似文献   
76.
77.
78.
79.
80.
This paper uses the case of telecommunications deregulation to construct a model of interest group behavior in bureaucratic-legislative policymaking. The model posits three common policymaking arenas: closed, open, and the transformational period between the two. Three features of these policymaking arenas are explored: (1) changes in the numbers of interested actors, leading to (2) changes in the policy-making environment and to (3) the shifting strategic interests of actors. Borrowing the concepts of “voice” and “exit” from Hirschman (1970), alternative interest group strategies are found to occur in different policymaking environments, or arenas, which in turn depend in significant part on the numbers of interested actors involved. Voice works when interests are or appear to be relatively complementary. Exit is used when voice fails, that is, in permeable arenas of many actors with conflicting interests.  相似文献   
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