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   3923篇
  免费   139篇
各国政治   136篇
工人农民   128篇
世界政治   243篇
外交国际关系   130篇
法律   2707篇
中国政治   36篇
政治理论   669篇
综合类   13篇
  2021年   28篇
  2020年   50篇
  2019年   57篇
  2018年   79篇
  2017年   94篇
  2016年   86篇
  2015年   71篇
  2014年   80篇
  2013年   306篇
  2012年   93篇
  2011年   114篇
  2010年   83篇
  2009年   91篇
  2008年   111篇
  2007年   86篇
  2006年   111篇
  2005年   91篇
  2004年   98篇
  2003年   99篇
  2002年   95篇
  2001年   187篇
  2000年   136篇
  1999年   105篇
  1998年   41篇
  1997年   50篇
  1996年   35篇
  1995年   49篇
  1994年   47篇
  1993年   58篇
  1992年   83篇
  1991年   86篇
  1990年   78篇
  1989年   64篇
  1988年   88篇
  1987年   84篇
  1986年   99篇
  1985年   111篇
  1984年   90篇
  1983年   82篇
  1982年   39篇
  1981年   38篇
  1979年   37篇
  1978年   32篇
  1977年   26篇
  1975年   33篇
  1974年   47篇
  1972年   29篇
  1971年   32篇
  1970年   30篇
  1968年   32篇
排序方式: 共有4062条查询结果,搜索用时 62 毫秒
131.
South Africa, once a pariah state as a result of the apartheid regime destabilization policies in Southern Africa, became a full fledge democratic state following the victory of the African National Congress (ANC) in the first and all‐inclusive democratic elections of 1994. The ANC's vision for Southern Africa was to be routed on the notion of curbing the imbalances of the past (pre‐1994), which had cost the Southern African region great economic loss. Here, one of the many fundamentals that were to drive the ANC's foreign policy doctrine was that of conflict resolution for a more stable and prosperous Africa particularly Southern Africa. Conflict resolution was viewed as a pivotal element for the new democratic government in order to stimulate beneficial relations with other African states post the apartheid era. In light of the above, and using a qualitative method approach, this paper draws a nuanced appraisal and examines the role of South Africa's peacekeeping and mediation initiatives in the Democratic Republic of Congo (DRC) and Lesotho post‐1994. In conclusion, South Africa has been able to utilize its regional hegemonic stance to ensure regional security while ensuring economic stability at home.  相似文献   
132.
This article describes the current state and range of information protection in the growing number of states and Canadian provinces that employ parenting coordination in an effort to reduce repeat custody litigation. The predominant approach—in which what is revealed during the process is not confidential—is analyzed in terms of its compatibility with the parenting coordinator's multiple tasks of educating parents, seeking to facilitate agreements, and, if necessary, providing the court with a report, a recommended decision, or an arbitrated result. Using a case scenario with multiple parts, the article then examines such confidentiality schemes in practice by providing an action‐oriented series of questions that illustrate how much of this topic must be resolved through a parenting coordinator's exercise of discretion in the absence of rule clarity. The article then raises a number of policy questions about whether current parenting coordination confidentiality norms strike the optimal or even the correct balance on information protection and concludes by identifying several policy options that might address these questions.  相似文献   
133.
Hacking trauma is prevalent in forensic cases involving genocide and dismemberment, but research into the identification of this type of trauma is lacking. The present study examines characteristics of hacking and blunt force skeletal trauma in order to determine if there is a point at which blunt force trauma becomes distinguishable from hacking trauma. Ten implements with a range of blade angles (i.e., the striking surface of the implement) were used in conjunction with a controlled-force hacking device to impact 100 limb bones of white-tailed deer (Odocoileus virginianus). Observations of the trauma included the occurrence and degree of fragmentation, the entrance widths of the impacts, and composite scores of six hacking characteristics, especially the distinctive V-shaped kerf. ANOVA tests and regression analyses were used to assess the relationships between these characteristics and the blade angles. A significant relationship (p-value = 0.011) was found between the composite hacking scores and the blade angles, indicating that blunt force and hacking trauma can be distinguished. The entrance widths of the impacts exhibited a significant relationship with the blade angles (p-value = 0.037). There was also a significant relationship between the visibility of a V-shaped kerf in the bones (p-value = 0.003), with visibility decreasing around the 60° blade angle. These data should assist in establishing guidelines to differentiate hacking and blunt force skeletal trauma in cases where the implement is on a spectrum between sharp and blunt.  相似文献   
134.
Physiologic reactivity to racially rejecting images was assessed in 35 young adults (10 males, 25 female) from African-American backgrounds using the startle probe paradigm. In a laboratory setting, participants viewed 16 images depicting racial rejection, racial acceptance, nonracial negative, and nonracial positive themes. While viewing these images, startling bursts of noise were presented and the magnitude of the eyeblink responses were measured. Results supported an attentional mechanism which suggests that, while viewing both racially rejecting and nonracial positive images, individuals may be so absorbed in processing the images that they appear less distracted by the startling noise. However, these patterns were only found for participants low in racial regard. Young adults who felt positively about their racial background did not exhibit differential processing of startle stimuli as a function of slide themes. Race-rejection sensitivity did not moderate startle reactivity. Developmental implications, particularly in light of coping with racial discrimination, are discussed.
Lisa KiangEmail:
  相似文献   
135.
136.
Dmitri N. Shalin 《Society》2017,54(3):279-290
This study traces the evolution of a research program that frames the human mind as an embodied social phenomenon. The essay is divided into two parts, the first one focused on historical issues, the second on contemporary developments. The discussion begins with the mind-body problem central to the scholarship in this area and then focuses the changing perspective on consciousness as a symbolically mediated process. Next, the paper surveys the relevant writings of Mead and Vygotsky, tracks the debate about the place of body in interactionist sociology, and connects this debate to current research in neuroscience. The report concludes with reflections on the prospects for embodied sociology and the contribution it can make to the debate about extended mind.  相似文献   
137.
We develop front‐door difference‐in‐differences estimators as an extension of front‐door estimators. Under one‐sided noncompliance, an exclusion restriction, and assumptions analogous to parallel trends assumptions, this extension allows identification when the front‐door criterion does not hold. Even if the assumptions are relaxed, we show that the front‐door and front‐door difference‐in‐differences estimators may be combined to form bounds. Finally, we show that under one‐sided noncompliance, these techniques do not require the use of control units. We illustrate these points with an application to a job training study and with an application to Florida's early in‐person voting program. For the job training study, we show that these techniques can recover an experimental benchmark. For the Florida program, we find some evidence that early in‐person voting had small positive effects on turnout in 2008. This provides a counterpoint to recent claims that early voting had a negative effect on turnout in 2008.  相似文献   
138.
139.
Punctuated equilibrium theory (PET) suggests that the policy process is characterized by long periods of incremental change and short periods of punctuated change. The impetus for the latter is usually a focusing event that breaks open policy monopolies, allowing for major changes in legislative decision making. While a burgeoning body of literature, a shortcoming in the PET literature is that it has yet to explain why focusing events and subsequent breakdowns in policy monopolies sometimes fail to result in punctuated policy. We integrate theories on cultural change with punctuated equilibrium to explain why focusing events do not always result in the dramatic policy changes that we might expect. Specifically, we use the context of national energy policy and the lexical database, Google Ngram Viewer, to trace punctuating energy‐related events and the occurrence or lack thereof subsequent policy change from 1952 to 2000.  相似文献   
140.
Quantitative literature discussing violence in civil conflicts tends towards a typical model of engagement between governments and revolutionaries. Whilst recent work has shown the significant impact of multiple anti-government groups, a further feature remains understudied—the role of pro-state militants. This article theorizes a “violence premium” when such groups arise, which leads to all connected groups devoting greater energy to conflict than they would in isolation. Employing duration analysis and data from The Troubles in Northern Ireland, where Republicans act as revolutionary insurgents, Loyalists as pro-state militants, and the British Army as government forces, the violence premium is empirically confirmed. Both Loyalists and Republicans deviate from their underlying strategies to attack more frequently when violence by their rivals increases, with Republicans and the British Army engaging in the same way. An extended analysis, accounting for the status of the victim, shows that the violence premium resulting from interaction between Loyalists and Republicans targeted only the civilian population of Northern Ireland, elucidating the sectarian component of The Troubles. These results show that including all conflict parties and considering how they are linked are important features in studies that aim to determine the net level of violence in civil conflicts.  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