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   495篇
  免费   44篇
各国政治   11篇
工人农民   47篇
世界政治   25篇
外交国际关系   30篇
法律   297篇
中国政治   6篇
政治理论   118篇
综合类   5篇
  2023年   4篇
  2021年   5篇
  2020年   16篇
  2019年   24篇
  2018年   26篇
  2017年   35篇
  2016年   29篇
  2015年   25篇
  2014年   21篇
  2013年   73篇
  2012年   19篇
  2011年   16篇
  2010年   15篇
  2009年   19篇
  2008年   11篇
  2007年   18篇
  2006年   16篇
  2005年   7篇
  2004年   7篇
  2003年   9篇
  2002年   8篇
  2001年   9篇
  2000年   8篇
  1999年   8篇
  1998年   8篇
  1997年   7篇
  1996年   8篇
  1995年   4篇
  1994年   5篇
  1993年   5篇
  1992年   6篇
  1991年   2篇
  1990年   3篇
  1988年   6篇
  1987年   2篇
  1986年   3篇
  1983年   4篇
  1982年   2篇
  1981年   4篇
  1980年   6篇
  1979年   17篇
  1978年   1篇
  1977年   2篇
  1976年   3篇
  1973年   1篇
  1972年   1篇
  1971年   1篇
  1969年   2篇
  1967年   4篇
  1966年   1篇
排序方式: 共有539条查询结果,搜索用时 312 毫秒
11.
US State governments invest in early-stage innovative activity as an economic development strategy. Nevertheless, attention directed at the public sector’s role in this capacity has been placed on federal policy actions overlooking the growing role of states. The primary aims of this paper are two-fold: (1) to articulate the motivations for multilevel public support for small business innovative activity, placing emphasis on state level incentives directed towards entrepreneurial activity; and (2) to empirically evaluate the State Match Phase I (SMP-I) program. The SMP-I program is a diffuse state level policy designed to complement the federal Small Business Innovation Research (SBIR) program by offering noncompetitive matching funds to the state’s successful SBIR Phase I recipients. This offers an opportunity to examine the marginal impact of public R&D given the state intervention. This paper employs a state and year fixed effects model and considers two outcome variables—SBIR Phase II success rates and SBIR Phase I application activity. To account for industrial heterogeneity, the data are stratified by the federal mission agencies. Results from the empirical analysis indicate that the state match increases the Phase II success rates for firms participating in the National Science Foundation SBIR program.  相似文献   
12.
Despite détente, the superpowers continued their Cold War practice of spying on one another throughout the 1970s. Yet intelligence is largely ‘missing’ from the historiography of détente. Why? Based on newly declassified data, ‘Détente in Deep Water’ reveals the geopolitical calculations behind the ‘Glomar response’ and how that legalese operated to limit disclosure of intelligence operations starting with AZORIAN/MATADOR, the CIA-led project to salvage a sunken Soviet submarine using the Hughes Glomar Explorer, a ship ostensibly owned (under a cover story) by industrialist Howard Hughes. Glomar’s diplomatic backstory sheds new light on the historical relationship between intelligence collection and foreign policy.  相似文献   
13.
Although all good social science research is by its very nature comparative, criminology and criminal justice have only recently embraced cross‐national research as a mainstream activity. This paper presents a brief history of the development of the subfield of empirical comparative criminology and criminal justice, assesses a typology of comparative studies, and identifies sources of comparative data. In addition, the paper discusses the benefits and drawbacks of using various available data sources which support macro‐, micro‐, or mixed‐ level analyses. Finally, the paper discusses the impediments to and the future of comparative crime and criminal justice research.  相似文献   
14.
15.

The increasing social visibility of Bondage/Domination, Discipline/submission and Sadism/Masochism (BDSM) within Western society has placed pressure on the criminal law to account for why consensual BDSM activities continue to be criminalised where they involve the infliction of even minor injuries on participants. With moralistic and paternalistic justifications for criminalisation falling out of favour, one key justification that is gaining traction within international commentary on BDSM is the “bogus BDSM argument”. The bogus BDSM argument contends that BDSM activities should be criminalised because otherwise false claims of BDSM will be used by defendants to excuse or minimise their criminal liability for nonconsensual abuse. This article refutes this argument by showing how it relies on premises that are unjustifiable, illogical and irrelevant. This article concludes that the decriminalisation of BDSM would not permit nonconsensual abuse so long as legal officials were equipped with sufficient knowledge about the norms and conventions of BDSM culture.

  相似文献   
16.
This paper examines the reliability of Structure from Motion (SfM) photogrammetry as a tool in the capture of forensic footwear marks. This is applicable to photogrammetry freeware DigTrace but is equally relevant to other SfM solutions. SfM simply requires a digital camera, a scale bar, and a selection of oblique photographs of the trace in question taken at the scene. The output is a digital three-dimensional point cloud of the surface and any plastic trace thereon. The first section of this paper examines the reliability of photogrammetry to capture the same data when repeatedly used on one impression, while the second part assesses the impact of varying cameras. Using cloud to cloud comparisons that measure the distance between two-point clouds, we assess the variability between models. The results highlight how little variability is evident and therefore speak to the accuracy and consistency of such techniques in the capture of three-dimensional traces. Using this method, 3D footwear impressions can, in many substrates, be collected with a repeatability of 97% with any variation between models less than ~0.5 mm.  相似文献   
17.
18.
This article examines the storytelling and narrative practices of an elite group of public administrators in the United Kingdom: local government chief executives. The authors do so through the lens of relationality, exploring the collective dimensions of leadership. The focus on leadership and stories embraces the narrative turn in public administration scholarship. It responds to calls for research examining the distinctive settings of everyday leadership action. The contribution to theory is a qualitative understanding of the relational ways in which stories and narratives are used in the practices of public administration leaders. The article analyzes four ways in which such leadership is accomplished: inviting an emotional connection and commitment to public service, making sense of organizational realities, provoking reflections on practices and assumptions, and managing relations with politicians. The authors offer an appreciation of how relational leadership influence can be generated by expressive narratives and storytelling rather than stemming from bureaucratic authority.  相似文献   
19.
ABSTRACT

The eastern Democratic Republic of Congo (DRC) is impacted by a prolonged conflict and humanitarian crisis. Sexual and gender-based violence (SGBV) affects an estimated 39.7% of women and 23.6% of men in the region, and is associated with serious medical, psychological, and socio-economic outcomes for survivors and communities. IMA World Health, a faith-based non-profit organisation, implements a USAID-funded project, Ushindi, which is a collaborative effort with three national NGOs and one technical partner in response to SGBV in eastern DRC. The consortium provides a comprehensive package of services to SGBV survivors, focusing on medical, emotional, psychological, legal, and socio-economic needs.  相似文献   
20.
Hopelessness is implicated in multiple psychological disorders. Little is known, however, about the trajectory of hopelessness during adolescence or how emergent future orientation may influence its trajectory. Parallel process latent growth curve modelling tested whether (i) trajectories of future orientation and hopelessness and (ii) within-individual change in future orientation and hopelessness were related. The study was comprised of 472 adolescents [52% female, 47% Caucasian, 47% received free lunch] recruited at ages 12–13 who completed measures of future orientation and hopelessness at five annual assessments. The results indicate that a general decline in hopelessness across adolescence occurs quicker for those experiencing faster development of future orientation, when controlling for age, sex, low socio-economic status in addition to stressful life events in childhood and adolescence. Stressful childhood life events were associated with worse future orientation at baseline and negative life events experienced during adolescence were associated with both an increase in the trajectory of hopelessness as well as a decrease in the trajectory of future orientation. This study provides compelling evidence that the development of future orientation during adolescence is associated with a faster decline in hopelessness.  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