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   4012篇
  免费   629篇
各国政治   603篇
工人农民   189篇
世界政治   512篇
外交国际关系   272篇
法律   1916篇
中国共产党   1篇
中国政治   101篇
政治理论   1004篇
综合类   43篇
  2023年   34篇
  2022年   23篇
  2021年   81篇
  2020年   123篇
  2019年   254篇
  2018年   242篇
  2017年   290篇
  2016年   283篇
  2015年   223篇
  2014年   236篇
  2013年   871篇
  2012年   210篇
  2011年   220篇
  2010年   167篇
  2009年   89篇
  2008年   162篇
  2007年   111篇
  2006年   108篇
  2005年   95篇
  2004年   119篇
  2003年   81篇
  2002年   78篇
  2001年   57篇
  2000年   66篇
  1999年   34篇
  1998年   21篇
  1997年   31篇
  1996年   20篇
  1995年   19篇
  1994年   25篇
  1993年   24篇
  1992年   16篇
  1991年   18篇
  1990年   17篇
  1989年   13篇
  1988年   20篇
  1987年   12篇
  1986年   9篇
  1985年   12篇
  1984年   11篇
  1983年   10篇
  1982年   8篇
  1981年   8篇
  1980年   11篇
  1979年   11篇
  1978年   11篇
  1977年   7篇
  1973年   8篇
  1971年   7篇
  1967年   7篇
排序方式: 共有4641条查询结果,搜索用时 31 毫秒
891.
This is the first report of arthropods associated with carrion in Venezuela, using laboratory bred rats (Rattus norvegicus). Rat carcasses were exposed to colonization by arthropods in neighboring montane savanna and cloud forest habitats in the state of Miranda. The taxonomic composition of the arthropods varied between both ecosystems. Scarabaeidae, Silphidae, Micropezidae, Phoridae, Vespidae and one species of ant, were collected only in the cloud forest. Dermestes maculatus, Chrysomya albiceps, Termitidae and most species of ants, were found only in the savanna. Fourteen species were considered to be of primary forensic importance: D. maculatus, Oxelytrum discicolle, Calliphora sp., Cochliomyia macellaria, Compsomyiops sp., C. albiceps, Phaenicia cuprina, P. sericata, P. eximia, Fannia sp., Puliciphora sp., Megaselia scalaris, Ravina sp. and Sarcophaga sp.  相似文献   
892.
The daunting global challenges saddling polities and governments alike have resultantly created a situation whereby governments and corporate civil society have inadvertently reneged on delivering public good and services to citizens. In ensuring and strengthening a public–private actor synergy, with particular emphasis on leveraging acquired knowledge and skills of diaspora‐based students, social entrepreneurship activities could be harnessed to provide sustainable remedies to social challenges such as unemployment, famine amongst others by utilizing social entrepreneurship as a tool. Using the theory of planned behaviour as a theoretical framework, the study elicited data from 322 respondents to empirically investigate determinants of social entrepreneurship intentions of Ghanaian students, with the moderating role of institutional support. Study results revealed that sense of social responsibility and service learning have significant relationship with social entrepreneurship intention. However, social volunteering experience had no significant relationship. Moreover, whereas attitude to social entrepreneurship intention demonstrated a positive relationship, institutional support as a moderator was also revealed to influence the relationship between attitude and social entrepreneurship intention. From the study findings, we discourse on the implications for social entrepreneurship in Ghana to policy makers and stakeholders.  相似文献   
893.
The European Union has some of the world's most ambitious and highly developed environmental laws on its books, but their effectiveness is severely compromised by non-compliance. With the UNECE Aarhus Convention (1998), Europe launched an innovative legal experiment, democratizing environmental enforcement by conferring third party citizens and environmental non-governmental organizations (ENGOs) with legal rights of access to environmental information, public participation, and access to justice in environmental matters. Based on some 2000 surveys and over 150 interviews with stakeholders from three Member States – France, Ireland, and the Netherlands – we adopt a holistic, 360° perspective, capturing the views of regulated parties, NGOs, and the general public on this private governance experiment. Our data provide important new insights into the practical effectiveness of Europe's laws enabling private environmental enforcement, its (intended and unintended) effects on farmers' compliance decisions in the vital area of nature conservation, and how law might be used to stimulate pro-environmental predispositions.  相似文献   
894.
Sudden cardiac death (SCD) is one of the most common causes of death. An important number of sudden deaths, especially in the young, are due to genetic heart disorders, both with structural and arrhythmogenic abnormalities. In recent years, significant advances have been made in understanding the genetic basis of SCD. Identification of the genetic causes of sudden death is important because close relatives are also at potential risk of having a fatal cardiac condition. A comprehensive post-mortem investigation is vital to determine the cause and manner of death and provides the opportunity to assess the potential risk to the family after appropriate genetic counselling. In this paper, we present an update of the different genetic causes of sudden death, emphasizing their importance for the forensic pathologist due to his relevant role in the diagnosis and prevention of SCD.  相似文献   
895.
In this paper we test competing hypotheses about the shape of the time-profile of foreign direct investment profitability on a panel of countries. Using partial linearization method we derive the time-profile of the cumulative profitability for the stock of direct investment from aggregate macroeconomic data. By testing the non-linearity hypothesis of the cumulative profitability life-cycle of direct investment we find a cubic curve.
Filip NovotnyEmail:
  相似文献   
896.
In this article I analyze both generalized propriety as a boundary marker of Sudanese identity in Cairo, and gendered attitudes toward morality and female genital cutting (FGC) as a fundamental aspect of that boundary. Sudanese have been profoundly affected by the ongoing political crisis in their home country, by the displacement triggered by political and economic collapse, and by their deteriorating legal and social status in Egypt. The dramatic changes in the circumstances of Sudanese residence in Cairo have challenged the cultural norm of gender complementarity as men ‘stay at home’ for want of work while women seek and find new opportunities for themselves. This unstable situation has led Sudanese to place more emphasis on ‘proper’ ways of behaving and being, an assertion that helps define the ethnic boundaries of the Sudanese community in Cairo. I demonstrate the inconsistencies between discourse and reality through ethnographic data while analyzing how Sudanese have found new ways of asserting their identity and resisting the practice of FGC.  相似文献   
897.
The global economy imposes many constraints on small economies, especially those pursuing export-oriented industrialization (EOI) through the attraction of foreign direct investment. It has been argued that the success of EOI depends on the government’s ability to meet the labor requirements of this economic model—labor peace and low wages—through labor control policies and even repression. This article compares the histories of labor control in Ireland, Puerto Rico, and Singapore, three island-nations of similarly small size and high degree of integration with the global economy. While the pressures for labor control during EOI are evident in each case, there is a great deal of variation in the strategies governments adopted to rein in organized labor. I argue that the labor control methods employed during EOI are not explained by an economic logic but by a political one inherited from an earlier period when labor control was motivated by the efforts of a dominant party to consolidate its power.  相似文献   
898.
The study deals with the basic questions of a new field of law: the sports law. Sport is traditionally the world of self-regulation, since the sport-associations do create and apply law as well. The state has interfered in this monopolistic world in the last fifty years, so did, on the basis that intrusion, the law. Where are the limits of the regulation by law, and under which conditions can the state and its courts supervise the norms of sports, these questions are dealt by the study.  相似文献   
899.
900.
Cachanosky  Nicolás  Lopez  Edward J. 《Public Choice》2020,183(3-4):461-477
Public Choice - While Buchanan is best known for the economics of politics and constitutions, his seminal contributions to this field are but one branch of his more underlying methodology and...  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