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   849篇
  免费   31篇
各国政治   42篇
工人农民   50篇
世界政治   83篇
外交国际关系   52篇
法律   383篇
中国政治   9篇
政治理论   251篇
综合类   10篇
  2023年   4篇
  2022年   3篇
  2021年   7篇
  2020年   16篇
  2019年   32篇
  2018年   25篇
  2017年   26篇
  2016年   29篇
  2015年   20篇
  2014年   20篇
  2013年   181篇
  2012年   24篇
  2011年   15篇
  2010年   20篇
  2009年   16篇
  2008年   28篇
  2007年   25篇
  2006年   27篇
  2005年   22篇
  2004年   18篇
  2003年   23篇
  2002年   23篇
  2001年   17篇
  2000年   12篇
  1999年   18篇
  1998年   9篇
  1997年   6篇
  1996年   11篇
  1995年   9篇
  1994年   11篇
  1993年   12篇
  1992年   13篇
  1991年   15篇
  1990年   8篇
  1989年   12篇
  1988年   8篇
  1987年   7篇
  1986年   14篇
  1985年   8篇
  1984年   17篇
  1983年   8篇
  1982年   9篇
  1981年   4篇
  1980年   5篇
  1979年   9篇
  1978年   7篇
  1977年   4篇
  1976年   3篇
  1967年   3篇
  1965年   2篇
排序方式: 共有880条查询结果,搜索用时 636 毫秒
711.
“Resilience” is a contested term with varying and ambiguous meaning in governmental, business, and social discourses. Surveillance is increasingly relied on as an instrument for resilience, enhancing the capability of anticipating, preventing, or recovering from adversity, thus preserving the fabric of society and the state. However, surveillance itself might undesirably erode social freedoms, rights, and other public goods. In the present study we focus on the interrelationship of surveillance and resilience. Studying the relationships between surveillance and resilience requires not only the theoretical study of possible examples but also the exploration and evaluation of the resilient entity’s core properties, strategies, and tactics and the external observer’s stance toward the entity in question. Furthermore, different contexts may exhibit different effects of surveillance on resilience. For example, an increase in surveillance by a democratic state may lead to increasing resilience of the state in the face of terrorist attacks but may also lead to the decreasing resilience of that society’s ability to exercise democratic values. The various models generated by these differing relationships will be explored with relation to three examples: the surveillance of international migration, the surveillance of extremist views, and the surveillance of digital financial transactions.  相似文献   
712.
Variability in the blood–breath ratio (BBR) of alcohol is important, because it relates a measurement of the blood-alcohol concentration (BAC) with the co-existing breath-alcohol concentration (BrAC). The BBR is also used to establish the statutory BrAC limit for driving from the existing statutory BAC limits in different countries. The in-vivo BBR depends on a host of analytical, sampling and physiological factors, including subject demographics, time after end of drinking (rising or falling BAC), the nature of the blood draw (whether venous or arterial) and the subject’s breathing pattern prior to exhalation into the breath analyzer. The results from a controlled drinking study involving healthy volunteers (85 men and 15 women) from three ethnic groups (Caucasians, Hispanics and African Americans) were used to evaluate various factors influencing the BBR. Ethanol in breath was determined with a quantitative infrared analyzer (Intoxilyzer 8000) and BAC was determined by headspace gas chromatography (HS-GC). The BAC and BrAC were highly correlated (r = 0.948) and the BBR in the post-absorptive state was 2 382 ± 119 (mean ± SD). The BBR did not depend on gender (female: 2 396 ± 101 and male: 2 380 ± 123, P > 0.05) nor on racial group (Caucasians 2 398 ± 124, African Americans 2 344 ± 119 and Hispanics 2 364 ± 104, P > 0.05). The BBR was lower in subjects with higher breath- and body-temperatures (P < 0.05) and it also decreased with longer exhalation times into the breath-analyzer (P < 0.001). In the post-absorptive state, none of the 100 subjects had a BBR of less than 2 100:1.  相似文献   
713.
714.
Using a simulated instrument strategy, we analyze how expansions to the federal and state Earned Income Tax Credits (EITC) affected household finances over the past two decades. Using data from the Survey of Income and Program Participation wealth topical modules, we also test whether responses differ over time, as well as whether there are different responses to the federal and state expansions, and how responses vary by educational attainment. A $1,000 policy‐induced increase in the average household EITC leads to a 3 percentage point increase in the likelihood of holding money in a savings or checking account, and approximately $700 more held in savings balances. These results are coupled with large increases in pre‐tax family earnings. We also find some evidence of decreases in unsecured debt holdings. We interpret these results as further evidence that the EITC increases the financial stability of low‐income single mothers.  相似文献   
715.
716.
The first waves of the fifth generation of mobile phone technology, 5G, are breaking on the telecommunication shores of the United Kingdom. The government's ambition is for the United Kingdom to be a global leader in 5G mobile technology, but its widespread commercial deployment faces a number of barriers and challenges. The aims of this commentary paper are to outline the main characteristics and rollout of 5G mobile technology, to explore the forces driving and shaping the 5G market, to examine the perceived barriers to the deployment of 5G networks, and to offer some wider reflections on the rollout of 5G.  相似文献   
717.
ABSTRACT

I focus on some controversial features of Peter Balint’s stimulating and provocative reassessment of the place of toleration in contemporary diverse societies. First, I question his argument that we must enlarge the concept of toleration to include indifference and approval if toleration is to be compatible with state neutrality. Secondly, I suggest that his idea of active neutrality of intent risks encountering the same difficulties as neutrality of outcome, although these will be mitigated the more the state’s neutrality takes a ‘hands-off’ form. Thirdly, while accepting his claim that exemptions depart from neutrality insofar as they attribute a significance to religious and conscientious convictions that they deny to mere preferences, I argue that that departure is not arbitrary and remains within the spirit of neutrality of intent.  相似文献   
718.
719.
720.
This study examined client satisfaction with a community‐based restoration services program for youth adjudicated incompetent to stand trial in Virginia. The sample consisted of 130 youth (ages 8‐21 years), 80 attorneys, and 43 juvenile court judges. Youth overwhelming found restoration services helpful to them, although some concepts were harder to learn than others. Both judges and attorneys were generally knowledgeable about juvenile competency law, although both were less knowledgeable about competency evaluators and the services provided to youth. Results will be used to improve teaching tools, training of Restoration Counselors, and communication between program providers and the legal community.  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