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881.
D.A. Spratt 《Journal of archaeological science》1982,9(1):79-94
Methods are described for modelling both the speeds and the driving forces of innovation processes, namely Critical Path Schedules and Cash Flow Curves respectively. The differences between innovations in modern industrial conditions and simpler societies are discussed, and the models applied to early innovations, but the data are too fragmentary to make quantitative models, although they can be used qualitatively to show general trends. In early societies the speeds were very slow but benefit/cost ratios very high, whereas the reverse tends to be true on average for modern innovations. Long delay times are often found in early innovation processes and these are determined by a wide variety of cultural factors. Seldom has the progress of the technology itself been on the “Critical Path” of innovation processes. The “Critical Path” and “Cash Flow” methods can also be used to study other, non-innovative, complex processes. 相似文献
882.
本文在分析我国人口形势的基础上,提出了九十年代结合我国人口实际情况开展人口地理研究的主要课题.同时对人口地理研究中理论与方法的提高也进行了讨论. 相似文献
883.
Miriam Bankovsky 《Australian journal of political science》2019,54(3):301-317
ABSTRACTJournal rankings for political science have been regularly published, from the 1970s onwards, by the American Political Science Association’s ‘state of the discipline’ journal. Politics journals have also been officially ranked by the Australian Political Studies Association into four bands (A*, A, B and C) from 2007 onwards. This article shows, first, that the assumption grounding these exercises (namely, that disciplinary journal rankings can serve as proxies for the quality of articles in their pages) is undermined by the findings of the broader research evaluation literature, especially with respect to sub-disciplines (like political theory, Australian politics, and some types of qualitative comparative politics) that bear certain characteristics. Next, outlining the findings of a 2018 survey, it is argued that the disciplinary use of journal rankings in political studies not only has damaging effects on research in political theory, but also advantages other sub-disciplines. The paper closes with two recommendations. 相似文献
884.
江南水乡古镇是江南地域社会经济活动的高度聚合体,而空间作为功能的载体,是古镇保护与发展中的关键一环。本文以周庄古镇为例,从行动者网络理论视角切入,解析不同旅游发展阶段古镇空间演化的行动者作用路径。研究发现,关键行动者意图、行动者网络结构的变化,推动了周庄古镇空间重构和演化。在观光旅游发展阶段,周庄镇政府为关键行动者,通过行政征召、专家带头征召等方式促成行动者网络的形成和发展,使古镇商业空间沿河街生长,文化体验空间呈团块状散布;在休闲度假转型阶段,市场力量开始发挥更大作用,行动者网络重新调整,进一步推动古镇商业空间网状渗透,文化体验空间条块衍生。本文认为古镇空间的实践建构应高度重视原住民这一行动者的作用。 相似文献
885.
886.
文章引入织补理论和场域理论,采用理论演绎与概念诠释方法,从场域织补视角出发对旅游传统村落更新理论进行思辨。研究发现,旅游重构了传统村落更新方向与逻辑,村落“碎片化”提供了织补理论应用的复杂性与矛盾性条件;旅游引发传统村落场域解构为旅游、生活、生产三大子场域,资本分化和竞争加大场域内外压力并引致场域失调;在保持村落复杂性前提下,场域织补可通过调适场域而作用于旅游传统村落更新过程。研究认为,场域织补的基本内容包括文化场域织补和关系场域织补,可运用资本调适作为场域织补的技术工具。 相似文献
887.
A POLYMORPHIC APPROACH TO POLICY ANALYSIS: A CASE STUDY OF ONTARIO'S ETHANOL IN GASOLINE REGULATION
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This article develops a “polymorphic” approach to policy analysis, that is, an approach that draws on multiple forms of spatial reasoning. Specifically, the proposed framework deploys scale and network not merely as epistemological devices that make sense of “horizontal” and “vertical” politico‐institutional structures, but as co‐constitutive ontological processes that involve an ever‐shifting interplay among legacies, rhythms, and events. This polymorphic approach, we argue, facilitates the identification and the examination of the mobilization of social networks and of the attendant cross‐scalar interactions that must be articulated whenever a given policy is framed as a sensible and politically viable place‐based solution. The novel conceptual framework is then applied to the empirical investigation of the formulation of the complex moral, political, and economic environment that enabled the emergence of Ontario's controversial Ethanol in Gasoline Regulation. Our polymorphic approach reveals how this regulation is a (failed) attempt to reconcile Canada's legacy as a resource‐based economy and Ontario's legacy as a manufacturing‐based economy where value is added, with the need for more rational and less harmful resource extraction and for greener fuels that can sustain the current order. We build on the lessons drawn from this case study to suggest that our approach has wider applicability in that it can help create a process‐oriented, dynamic, and multi‐dimensional geography of policy‐making. 相似文献