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   1268篇
  免费   69篇
各国政治   84篇
工人农民   67篇
世界政治   92篇
外交国际关系   123篇
法律   305篇
中国共产党   36篇
中国政治   137篇
政治理论   303篇
综合类   190篇
  2024年   2篇
  2023年   16篇
  2022年   6篇
  2021年   17篇
  2020年   33篇
  2019年   52篇
  2018年   82篇
  2017年   58篇
  2016年   48篇
  2015年   32篇
  2014年   68篇
  2013年   165篇
  2012年   83篇
  2011年   58篇
  2010年   62篇
  2009年   55篇
  2008年   68篇
  2007年   61篇
  2006年   74篇
  2005年   70篇
  2004年   74篇
  2003年   51篇
  2002年   33篇
  2001年   33篇
  2000年   13篇
  1999年   6篇
  1998年   1篇
  1997年   5篇
  1996年   1篇
  1995年   1篇
  1994年   1篇
  1993年   1篇
  1992年   2篇
  1991年   1篇
  1989年   1篇
  1987年   1篇
  1986年   2篇
排序方式: 共有1337条查询结果,搜索用时 15 毫秒
61.
Faced with pressing climatic changes, scientific and industrial interests are vying to develop crops that can survive drought, floods and shifting pest regimes. Increasingly, they look for solutions in an unlikely place: the gene pools of wild plants. Crop wild relatives (CWR) – species closely related to crops, including their ancestors – offer breeders the allure of retracing the domestication bottleneck, infusing genomes of modern crops with ‘lost’ genetic variety. Yet wild relatives also confront threats from climate change, urbanization and expansion of industrial agri-food. Thus, CWR, seen as both salvational and threatened, have become an international conservation and food-security priority. It is my contention that, in their common project to harness wild-relative potential, conservation and breeding science are co-evolving to extend seed commodity relations into new spheres. I examine enclosures along two fronts: first within ‘systematic CWR conservation’, where ‘in situ’ approaches, typically regarded as empowering and sustainable alternatives to ‘ex situ’, instead may support a complementary system of value extraction; second, in breeding and biotechnology research, which produces new value for CWR while profoundly shaping upstream conservation priorities. An important finding is that although today’s ‘ex situ-centric’ complementarity favors dispossession, an ‘in situ-centric’ approach could foster democratic renewal of biocultural diversity.  相似文献   
62.
That public officials influence public policy is generally agreed upon, but the issue of how individual officials gain this influence is less developed in the literature. Here, the stories and experiences of 10 officials, active in local environmental governing in Sweden, are used to identify, describe, and discuss key strategies for gaining policy influence. The result shows the importance of accessing key politicians; avoiding isolation within the administration; developing long-term strategies; and being skilled in communication, networking, and generating external resources. The way these officials act and think challenges some well-established theoretical notions and adds empirical insights to the democratic dilemma of bureaucratic power.  相似文献   
63.
ABSTRACT

Since Tajikistan’s independence, market reforms and pressure from international donors have brought changes to the state’s role in the economy. The official narrative holds that the post-socialist state reduced its control over agriculture, but there are still various mechanisms through which it exerts control over farming. In this paper, I examine Tajikistan’s post-socialist agrarian change through the prism of farm debt. Farm debt used to be an accounting nuisance in Soviet agriculture as a result of so-called soft-budget constraints. In the political economy of post-socialist transformation, farm cotton debt has been transformed into indebted land. I classify this debt ‘elastic’ for its ambiguous nature. It ties farmers to land and makes farmers’ independence illusory. With an in-depth analysis based on original ethnographic insights, I aim to provide a theoretical contribution to the way in which debt is conceptualised and politicised in post-Soviet Tajikistan.  相似文献   
64.
ABSTRACT

This paper advances a new framework for analysing agrarian change in rural China and elsewhere in developing Asia, which centres on translocal family reproduction. The framework highlights the crucial connections between rural families’ translocal strategies for meeting reproductive (especially care) needs, their changing aspirations for reproduction, and other aspects of agrarian change, including de-peasantisation, de-agrarianisation and social differentiation. In developing this framework, the paper refers to a village case study in central China and draws on a critique of the ‘livelihoods perspective’ on agrarian change, approaches focusing on ‘global householding’, and the cultural reproduction of class and gender.  相似文献   
65.
Food production has been changing significantly in recent years as a result of climate change and of growing demand for food. This article aims to understand the link between food security and international security in the context of climate change, applying a systematic and qualitative analysis of the literature using the bibliometric method. This research observes that climate change tends to affect agricultural productivity, exposing societies to risk and the need for migration. However, good governance, together with international cooperation, can reduce the hazards of food insecurity, strengthening ties between countries and stimulating a fairer and more inclusive form of international trade.  相似文献   
66.
The present research tries to contribute to the academic debate on public management reform adoption, focusing on the reasons for the discrepancies between actual and formal changes and using resistance to change as theoretical basis. The study hypothesizes that high levels of individual and organizational resistance to change may be associated to the formal implementation of public management reforms. The research results allow to confirm the hypothesis when large-size municipalities are considered, while when considering medium-size entities a definite evidence of a relation between resistance to change and the formal implementation of the reforms does not emerge.  相似文献   
67.
For almost four decades, the reform of the state has been a recurrent and relevant topic for social sciences. Has the s.c. positive state been replaced by a regulatory state, or have hybrid configurations emerged? Based on a comparative analysis of German and Italian railway policies, this article aims to contribute to the literature on regulation, considering the possibility of policy mixes in which elements of the positive and the regulatory state are interrelated. Such hybridization is the result of multiple-actor policy arenas, where regulatory tools are used to restructure state’s direct intervention rather than to bring about its retreat.  相似文献   
68.
Over the past 15 years, northwest Cambodia has seen dramatic agrarian expansion away from the central rice plain into the peripheral uplands fuelled by peasant in-migration. Against this background, we examine the nature of relations between the peasantry and the state. We first show the historical continuities of land control processes and how the use of violence in a post-conflict neoliberal context has legitimised ex-Khmer Rouge in controlling land distribution. Three case studies show the heterogeneity of local level sovereignties, which engage the peasants in different relations with authority. We examine how these processes result in the construction of different rural territories along the agricultural frontier and argue that, in this region of Cambodia, the struggles between Khmer Rouge and neoliberal modes of land control are central to state formation processes.  相似文献   
69.
Canada and Australia are two of the economic success stories of the last thirty years, enjoying rapid growth during the 1990s and 2000s and (unlike the UK and US) escaping the worst effects of the 2008 financial crisis. In both countries, however, economic growth has become highly dependent on commodities extraction, leaving them vulnerable to fluctuations in commodity prices, and imposing political constraints on tackling climate change. This article explores the economic and political challenges which the role of the natural resource sector has posed in Australia and Canada in recent years, and examines the contrasting ways in which Scott Morrison and Justin Trudeau’s governments deployed the climate issue in the two countries’ 2019 federal elections.  相似文献   
70.
Recent work in the field of feminist institutionalism has made important progress in furthering our understanding of gendered institutional change. I argue that gradual ideational changes play an essential role in processes of gendered institutional change, and that examining the interaction between ideas and gendered institutions is of great importance for gaining a better understanding of processes of this type. This article revisits an empirical study of gendered institutional change in Swedish prostitution policy in the effort to specify two idea-based mechanisms that are conducive to gendered change, namely, consensus concerning the problem and gendering of the problem.  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