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   680篇
  免费   28篇
  2023年   6篇
  2022年   24篇
  2021年   19篇
  2020年   31篇
  2019年   28篇
  2018年   43篇
  2017年   54篇
  2016年   36篇
  2015年   36篇
  2014年   18篇
  2013年   138篇
  2012年   45篇
  2011年   40篇
  2010年   19篇
  2009年   27篇
  2008年   23篇
  2007年   18篇
  2006年   27篇
  2005年   13篇
  2004年   10篇
  2003年   6篇
  2002年   19篇
  2001年   5篇
  2000年   4篇
  1999年   7篇
  1998年   3篇
  1997年   2篇
  1994年   1篇
  1993年   1篇
  1991年   3篇
  1986年   1篇
  1978年   1篇
排序方式: 共有708条查询结果,搜索用时 15 毫秒
41.
The indigenous-influenced policies of Evo Morales's Bolivia represent arguably the most important attempt to improve the socioenvironmental implications of resource extraction in recent years, reasserting the role of the state and social movements against ‘corporate-led governance’. In this paper, through combining the regulation approach with neo-Gramscian state theory, I carry out a conceptually informed analysis of struggles over hydrocarbon governance in Bolivia, in order to shed light on the reasons why such an ambitious political project has largely failed to realise its transformative potential. I make two interrelated arguments. First, initial, important advances in the governance of resources in Bolivia were later partially reversed, due to shifting power relations between social movements, the hydrocarbon industry, and the state. This points to the need of understanding resource governance and its changes as reflecting or ‘condensing’ shifting power relationships among social forces. Second, the coming to power of Evo Morales resulted in a ‘passive-revolutionary’ process whereby an initial radical break with the neoliberal order was followed by a gradual adaptation to pre-existing political economic relations and arrangements. Most notably, plans to reduce the country's dependency on gas exports as well as to challenge the transnational domination of the hydrocarbon sector were abandoned, generating an increasingly explicit incompatibility with indigenous demands. I conclude that neo-Gramscian theory offers important insights that enable us to advance our conceptualisation of the state in resource governance research and in political ecology more generally.  相似文献   
42.
River basins are an extremely important source of freshwater for Africa and the impact of climate change on these communities constitutes an important question worth studying. Among these basins, the Niger River Basin is an ideal candidate for meso-level theory testing of climate change-induced political violence because of its importance as one of the largest sources of freshwater in Africa, its high vulnerability to climate change, and its location in a politically unstable region. This paper utilizes the benefits of GIS to test whether effects of water insecurity on the various incidences of political violence are conditional on economic, geographic, and social means of connectivity. Our analysis uses the density of secondary road networks, the geographic distance to the Niger River, and a shared co-ethnicity with one's head-of-state to evaluate the impact of hydrological stress and its subsequent risk for political violence across nine West African countries from 1997 to 2012. Using climatological data and an econometric de-trending method, we measure the separate, substantive impact that individualized changes in precipitation trend and precipitation variability have for the incidence of ACLED's political violence events, conditional on local economic, geographic, and social factors. Our results reveal a complicated web of circumstances under which certain forms of political violence are more/less likely to be observed. The implications of this analysis serve as a call for a closer inspection of the micro-channels by which climate stress impacts heterogeneous communities in the developing world.  相似文献   
43.
The US military has a long and robust history of scientific research programs, often conducted in conjunction with civilian scientists at non-military governmental agencies as well as universities. These programs flourished in the immediate post-Second World War and the early cold war years, as the field of military science expanded to address the sprawling Soviet threat. One area of growth was in atmospheric science, which had already taken off preceding Second World War in conjunction with the growth of air warfare. Advances in meteorology, cloud science and climatology enabled military interests to align with weather forecasters and also agricultural interests, as old ideas about cloud seeding and weather control were revived in the light of new research. The military, largely through the Air Force, advanced a series of projects investigating the potential of weather and climate control, manipulation, and ultimately weaponisation. These programs, which were sometimes linked to US Department of Agriculture programs aimed at improving agricultural production, persisted for decades. Some of the newly developed tools were deployed: local climate manipulation efforts during the Vietnam conflict were aimed at impeding traffic along the Ho Chi Minh Trail, with mixed results. Significant efforts came during the Weather Bureau leadership of Francis W. Reichelderfer, whose papers contain a wealth of information about efforts ranging from cloud seeding to proposals to drop atomic weapons on hurricanes. These papers, along with those of Weather Bureau scientist Harry Wexler, provide a fascinating window to a time when the US military and scientific establishment seemed poised to grasp the levers of power over nature itself. This paper describes these little-studied programs, and situates these efforts within the broader military science programs accompanying the emergence of air warfare, as well as post-war science programs aimed at countering the Soviet challenge.  相似文献   
44.
Ivan Jablonka seeks something other than a mere combination of history, social science, and literature. He would like history, itself understood as a social science, to be a literature of the real world. He is also interested in literature informed not only by the results but, more important, by the forms of reasoning and inquiry of history and related social sciences (notably anthropology and sociology). Jablonka's own positioning within the Annales seems obvious, notably in his stress on cognition, problem‐oriented research, and the status of history as a social science. But the attention and research devoted in the work of scholars in and around the Annales to the relations among history, literature, and fiction have not been pronounced, and in this context Jablonka inflects the understanding of history in relatively underdeveloped directions. Despite possible disagreements one may have over specific issues, Jablonka's thought‐provoking book raises very important questions, opens many significant avenues of inquiry, and seeks a desirable interaction between historical and literary approaches.  相似文献   
45.
Recognizing that the vogue of postmodernism has passed, Simon Susen seeks to assess whatever enduring impact it may have had on the social sciences, including historiography. Indeed, the postmodern turn, as he sees it, seems to have had particular implications for our understanding of the human relationship with history. After five exegetical chapters, in which he seems mostly sympathetic to postmodernism, Susen turns to often biting criticism in a subsequent chapter. He charges, most basically, that postmodernists miss the self‐critical side of modernity and tend to overreact against aspects of modernism. That overreaction is evident especially in the postmodern preoccupation with textuality and discourse, which transforms sociology into cultural studies and historiography into a form of literature. But as Susen sees it, a comparable overreaction has been at work in the postmodern emphasis on new, “little” politics, concerned with identity and difference, at the expense of more traditional large‐scale politics and attendant forms of radicalism. His assessment reflects the “emancipatory” political agenda he assigns to the social sciences. Partly because that agenda inevitably affects what he finds to embrace and what to criticize, aspects of his discussion prove one‐sided. And he does not follow through on his suggestions that postmodernist insights entail a sort of inflation of history or historicity. Partly as a result, his treatment of “reason,” universal rights, and reality (including historiographical realism) betrays an inadequate grasp of the postmodern challenge—and opportunity. In the last analysis, Susen's understanding of the historical sources of postmodernism is simply too limited, but he usefully makes it clear that we have not put the postmodernist challenge behind us.  相似文献   
46.
Late Postclassic period (a.d. 1350–1525) Tarascan economic activities often included higher degrees of political involvement and territorial control compared with other ancient Mesoamerican societies. Here I examine Tarascan obsidian economies through an analysis of lithic production and consumption patterns from structures excavated on and near the Great Platform at the imperial capital of Tzintzuntzan. Four spatially distinct patterns are evident. Great Platform residents used high-quality obsidian blades as ceremonial items or burial offerings and scrapers for craft production. Lower elite residents of Structure F, outside the Great Platform, produced their own blade tools and consumed a higher percentage of green obsidian than residents of the Great Platform. Excavations at Yacata 3 recovered bifacial arrowheads and obsidian bloodletters associated with disturbed offerings. The spatial distributions of lapidary preforms and highly polished fragments combined with accounts from the Relación de Michoacán (a.d. 1541) suggest that lower elites produced obsidian jewelry near the Great Platform.  相似文献   
47.
48.
What is the problem that “epistemic virtues” seek to solve? This article argues that virtues, epistemic and otherwise, are the key characteristics of “scholarly personae,” that is, of ideal‐typical models of what it takes to be a scholar. Different scholarly personae are characterized by different constellations of virtues and skills or, more precisely, by different constellations of commitments to goods (epistemic, moral, political, and so forth), the pursuit of which requires the exercise of certain virtues and skills. Expanding Hayden White's notion of “historiographical styles” so as to encompass not only historians' writings, but also their nontextual “doings,” the article argues that different styles of “being a historian”—a meticulous archival researcher, an inspired feminist scholar, or an outstanding undergraduate teacher—can be analyzed productively in terms of virtues and skills. Finally, the article claims that virtues and skills, in turn, are rooted in desires, which are shaped by the examples of others as well as by promises of reward. This makes the scholarly persona not merely a useful concept for distinguishing among different types of historians, but also a critical tool for analyzing why certain models of “being a historian” gain in popularity, whereas others become “old‐fashioned.”  相似文献   
49.
Tom Mels 《对极》2014,46(4):1113-1133
In Henri Lefebvre's work, abstract space entails qualitatively new ways of envisioning and strategically arranging the sites within which capital accumulation and everyday life are to unfold. This paper sets out to delineate how this premise can be profitably used to decipher contested tactics of primitive accumulation. Arguing from a particular case—nineteenth‐century reclamation of mires on the island of Gotland, Sweden—the paper explores how primitive accumulation was made possible through the conjunction of three spatialities, representing three key lines of struggle over abstract space. The abstraction and avowed homogeneity of space was produced and regulated by concurrent ideological maneuvers against customary practice, leveled by scientific discourse, and pursued through a legally endorsed material transformation of nature.  相似文献   
50.
Knowledge and science transfer – introductory remarks. The article presents introductory remarks on the historical study of knowledge and science transfer. Discussion focuses initially on the reasons for speaking of knowledge transfer and not only about science transfer, and the relations of this topic to current research in general history on cultural transfer. Multiple levels of knowledge / science transfer are then discussed, specifically: (1) transfer by means of migration or other movement of people across geographic boundaries; (2) scientific changes related to the transfer of objects (such as plant specimens or instruments) across continents or disciplines; (3) knowledge or science transfer in practical contexts. Addressed throughout is the problematic character of the concept of transfer itself. The author suggests that users of this concept often presuppose a static conception of scientific and cultural contents being more or less successfully transferred; more interesting, however, are the changes in science and culture conditioned or caused by the migration of individuals as well as the transfer of culture by other means.  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