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   1040篇
  免费   48篇
各国政治   52篇
工人农民   82篇
世界政治   47篇
外交国际关系   47篇
法律   230篇
中国共产党   63篇
中国政治   148篇
政治理论   139篇
综合类   280篇
  2024年   2篇
  2023年   6篇
  2022年   9篇
  2021年   9篇
  2020年   26篇
  2019年   14篇
  2018年   34篇
  2017年   36篇
  2016年   27篇
  2015年   15篇
  2014年   40篇
  2013年   101篇
  2012年   65篇
  2011年   49篇
  2010年   41篇
  2009年   49篇
  2008年   61篇
  2007年   78篇
  2006年   78篇
  2005年   81篇
  2004年   78篇
  2003年   66篇
  2002年   51篇
  2001年   35篇
  2000年   30篇
  1999年   6篇
  1996年   1篇
排序方式: 共有1088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.
The level of, and trends in, global inequality and global poverty are indicative assessments of who has benefited from economic growth. The revision of price data has led to a reassessment of those estimates. Through an extensive overview of the implications, we argue that the data can be read in different ways. Official estimates show global extreme poverty and global inequality are considerably lower than previously thought. We argue that these changes are much less significant than they at first appear, and we present a more nuanced alternative interpretation by exploring changes across the entire global distribution.  相似文献   
63.
A decade ago it seemed likely that African governments would be destabilised by the impact of the HIV/AIDS epidemic. This article tests some of the presumptions in such forecasting with an examination of the South African case. It begins with an assessment of the effects on the public health system of the South African government’s efforts to cope with the illness. Efforts to implement universal treatment of people who are HIV-positive appear to have strengthened government, while the costs have been affordable. The efforts have extended the embrace of the public health system and prompted the engagement of civil society in policy formation and implementation. Survey evidence suggests that the government has gained public approval and that its health service delivery has become more socially accountable. Civil protest to engender political reforms in the treatment of AIDS patients has enhanced the role of constitutional checks on executive authority.  相似文献   
64.
This article draws upon existing literature to document and describe the rise of finance in food provisioning. It queries the role of financialization in the contemporary food crisis and analyzes its impacts upon the distribution of power and wealth within and along the generalized agro-food supply chain. A systematic treatment of key nodes in the supply chain reveals four key insights: (1) the line between finance and food provisioning has become increasingly blurred in recent decades, with financial actors taking a growing interest in food and agriculture and agro-food enterprises becoming increasingly involved in financial activities; (2) financialization has reinforced the position of food retailers as the dominant actors within the agro-food system, though they are largely subject to the dictates of finance capital and face renewed competition from financialized commodity traders; (3) financialization has intensified the exploitation of food workers, increasing their workload while pushing down their real wages and heightening the precarity of their positions, and (4) small-scale farmers have been especially hard hit by financialization, as their livelihoods have become even more uncertain due to increasing volatility in agricultural markets, they have become weaker vis-à-vis other actors in the agro-food supply chain, and they face growing competition for their farmland. The paper concludes by identifying themes for future research and asking readers to reimagine the role of finance in food provisioning.  相似文献   
65.
中国的英语教育近年来受到越来越多的重视。无论是国家还是个人都投入了大量资源用于英语教育,如此巨额的投入所带来的劳动市场回报值得关注。英语教育的劳动市场回报可以分为人力资本投入回报和信号作用回报。研究发现,英语在实际工作中使用越多,工资收入越高,是为英语教育作为人力资本投入回报的证据。但在工作中很少用到英语的人,通过英语四六级考试对其工资也有显著影响,反映了英语教育具有信号作用的功能。调查显示,英语教育的信号作用是英语教育劳动市场回报的主要方面。因此,中国的英语教育有过度教育从而导致资源配置低效率之嫌,建议及时调整国家的英语教育政策。  相似文献   
66.
刘燕 《法学研究》2020,(2):128-148
PE/VC与目标公司对赌的司法裁判要点从合同效力转入合同可履行性后,需要面对两个层次的追问:一是以什么样的实体标准来判断履行障碍,二是由谁来判断是否存在履行障碍。华工案和“九民纪要”仅处理了第一个层次的问题,且主要以资本维持原则作为实体判断标准。然而,我国现行公司法资本维持原则过于粗疏,且缺乏“大分配”概念和底线规制的思路,导致“对赌协议”下的回购只能通过减资的途径,徒增成本。域外以清偿能力标准替代资本维持原则,体现了另一种以债权人利益为导向限制公司资产单向流出至股东的规制思路,但其商业逻辑上的合理性却无法掩盖更大的操作成本。就第二层次的判断主体而言,以美国特拉华州为代表,法官的商业判断逐渐让位于公司董事会的商业判断,却进一步凸显了公司、不同类别股东、债权人之间利益冲突的复杂状态。立法层面的价值判断与政策选择将最终决定司法裁判的走向,未来我国公司法的修订需要回应商业实践的诉求,同时PE/VC投资者也需要直面投资失败的风险承担。  相似文献   
67.
Following Catherine Hakim’s notion of the increasing significance of ‘erotic capital’ in contemporary society, this paper addresses the effects of erotic capital in the realm of professional sports. Erotic capital may be closely related to popularity and thus represents a key marketing asset, in particular for female athletes facing a predominantly male audience. These ideas are examined here through analysing the media visibility of top tennis players in the German print media, as well as their global popularity (measured by search engine queries). The results provide further evidence of gender discrimination in sport since they show that the popularity of female athletes depends on their physical attractiveness whereas such a relationship does not exist for male athletes. Given gender-discriminatory consumer and print media preferences, female athletes face strong incentives to adapt to a sexualized sports culture that reinforces hegemonic masculinity.  相似文献   
68.
表决权虽名为权利,但在资本多数决的股东大会决议机制下却分化为意思表达权和形成权两种性质各异的权利,而其原因在于股东大会决议行为的特殊法律行为属性和特殊法律效力,在于股东表决的不同性质——意思通知和单方法律行为,并由此导致对一系列关乎股东表决权制度的重新评价和审视,如表决权排除、类别股东表决、异议股东股份购买请求权以及资本多数决的决议机制等。  相似文献   
69.
农村人力资本投资的影响因素分析   总被引:2,自引:0,他引:2  
农村人力资本投资不但受到经济发展水平与风险因素的影响,还会受到政府投资政策与投资体制的影响。总得来看,由于政府财力有限以及在投资过程中的城市化倾向、农民收入增长缓慢和人力资本流动造成的风险使得农村人力资本投资水平比较低。  相似文献   
70.
人才是第一资源,是创新的源泉。引进高层次人才和建设高水平的学科团队始终是高校人才强校的战略要求。但在日趋激烈的人才争夺的现实中,各高校的高层次人才引进工作始终存在着诸多问题,以东华大学为例试分析问题存在的原因,并提出相应政策建议。  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