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   1283篇
  免费   74篇
各国政治   107篇
工人农民   62篇
世界政治   185篇
外交国际关系   88篇
法律   688篇
中国政治   2篇
政治理论   225篇
  2023年   18篇
  2022年   14篇
  2021年   31篇
  2020年   46篇
  2019年   57篇
  2018年   80篇
  2017年   73篇
  2016年   67篇
  2015年   45篇
  2014年   66篇
  2013年   200篇
  2012年   57篇
  2011年   47篇
  2010年   29篇
  2009年   27篇
  2008年   42篇
  2007年   38篇
  2006年   41篇
  2005年   34篇
  2004年   41篇
  2003年   43篇
  2002年   29篇
  2001年   32篇
  2000年   38篇
  1999年   13篇
  1998年   9篇
  1997年   8篇
  1996年   5篇
  1995年   7篇
  1994年   10篇
  1993年   8篇
  1992年   8篇
  1991年   8篇
  1990年   6篇
  1989年   6篇
  1988年   6篇
  1987年   6篇
  1984年   2篇
  1983年   2篇
  1982年   4篇
  1980年   4篇
  1979年   6篇
  1978年   6篇
  1977年   2篇
  1973年   8篇
  1972年   3篇
  1971年   7篇
  1970年   2篇
  1965年   4篇
  1963年   2篇
排序方式: 共有1357条查询结果,搜索用时 15 毫秒
181.
Recreational use of the potent synthetic opioid 3,4‐ dichloro‐N‐(2‐(dimethylamino)cyclohexyl)‐N‐methylbenzamide (U‐47700) is rising, accompanied by increasingly frequent cases of serious intoxication. This article reports a case of near‐fatal U‐47700 intoxication. A man was found unconscious (with drug powder residues). After 40 h in hospital (including 12 h of supported ventilation), he recovered and was discharged. Liquid chromatography/high‐resolution mass spectrometry (LC/HRMS) or gas chromatography/mass spectrometry (GC/MS) were used to detect and quantify substances in powders, serum and urine. Powders contained U‐47700 and two synthetic cannabinoids. Serum and urine were positive for U‐47700 (351.0 ng/mL), citalopram (<LOQ), tetrahydrocannabinol (THC: 3.3 ng/mL), midazolam (<LOQ) and a novel benzodiazepine, clonazolam (6.8 ng/mL) and their metabolites but negative for synthetic cannabinoids. If potent synthetic opioids become cheaper and more easily obtainable than their classical counterparts (e.g., heroin), they will inevitably replace them and users may be exposed to elevated risks of addiction and overdose.  相似文献   
182.
International Journal for the Semiotics of Law - Revue internationale de Sémiotique juridique - Medellín has been a privileged subject in Colombian cinema. In films whose stories take...  相似文献   
183.
This study examines neuropsychological impairment in women who have experienced intimate partner violence using DSM 5 criteria for mild and severe cognitive impairment. A total of 108 females in Spain were included in one of three groups: psychological abuse (n = 24), physical and psychological abuse (n = 45), and no-abuse (n = 39). There were differences between the control and IPV groups in attention and executive functioning. Furthermore, approximately 25% of women experiencing IPV suffer mild neuropsychological alterations and 5% severe, mostly in memory and executive function domains. This evidence supports the growth in research that suggests psychological violence on its own to be as strongly related to poor health outcomes as physical violence in intimate partner relationships.  相似文献   
184.
Soil forensics utilizes extensive soil information to answer legal questions and test hypotheses. The main difficulty often is the determination of different variables from a small amount of soil sample collected on the suspect. We developed a sequential mineralogical and chemical analyses to assess a limited quantity of soil vestiges (0.5 g) from a suspect's vehicle (adhered to the outside rear-view mirror and to the left front fender) involved in a murder case and compared them with the surface samples found at the victim's body disposal site at the Graciosa Road, Paraná State, Brazil. All results affirm that the suspect’s vehicle could have been in contact with the edge of the Graciosa Road, approximately the place where the victim’s body was located. As a result of the soil analysis and comparison, the results support the likely contact of the suspect’s vehicle with the crime scene.  相似文献   
185.
The present paper proposes and demonstrates a method for assessing strength of evidence when an earwitness claims to recognize the voice of a speaker who is familiar to them. The method calculates a Bayes factor that answers the question: What is the probability that the earwitness would claim to recognize the offender as the suspect if the offender was the suspect versus what is the probability that the earwitness would claim to recognize the offender as the suspect if the offender was not the suspect but some other speaker from the relevant population? By “claim” we mean a claim made by a cooperative earwitness not a claim made by an earwitness who is intentionally deceptive. Relevant data are derived from naïve listeners' responses to recordings of familiar speakers presented in a speaker lineup. The method is demonstrated under recording conditions that broadly reflect those of a real case.  相似文献   
186.
China-EU Law Journal - The Court of Justice of the European Union has ascertained that free movement provisions as enshrined in European Union primary law entail not only mandatory rules...  相似文献   
187.
This article examines the history of the Chilean Legal Aid Service (Servicio de Asistencia Judicial) from the 1920s until the 1960s. It argues that with the emergence of the “social question”—the concern for improving the lower classes' working and living conditions to promote the nation's modernization and prevent political radicalization—the Chilean legal profession committed to legal aid reform to escape a professional identity crisis. Legal aid allowed lawyers to claim they had a new “social function” advocating on behalf of the poor. However, within legal aid offices, lawyers interacted with female social workers who acted as gatekeepers, mediators, and translators between the lawyers and the poor. This gendered professional complementarity in legal aid offices helped lawyers to put limits on their new “social function”: it allowed them to maintain legal aid as a part‐time activity that did not challenge the structure of the legal system as a whole.  相似文献   
188.
189.
This article examines how parties organize legislative speech. Electoral incentives and legislative institutions affect speech participation. When electoral systems create personal vote‐seeking incentives, parties are less concerned with screening speeches and more supportive of members seeking to garner name recognition. But in many countries, legislative rules and norms constrain opportunities for individual position taking during the lawmaking debates. We argue that parties resolve this dilemma by organizing speech participation into nonlegislative speeches and lawmaking debates. In each instance, different types of legislators are more likely to speak. We examine the case of Chile and test the implications of our theory with data on congressional speeches.  相似文献   
190.
The aim of this paper is to identify differences in contract design between successful and less successful franchise chains. Comparing contracts from both groups of companies, we observe, on the one hand, that (1) franchise contracts are unbalanced irrespective of the chain’s success: contracts cover franchisees’ obligations more than franchisors’ obligations. On the other hand, we find that (2) contracts in successful franchise chains are more complete (i.e. cover a larger number of contingencies) than the less successful ones and (3) this difference lies in the contingencies regarding franchisees’ obligations, which are more fully covered in the contracts of more successful chains. More specifically, within the contingencies regarding franchisees’ obligations, (4) successful chains restrict the franchisee decision rights more frequently on day-to-day business operations than on financial conditions or post-contractual contingencies. These findings can be explained because successful chains are more sensitive to franchisees’ opportunistic behavior, because they have learned how to manage and solve any potential conflicts, or because of differences in bargaining power. Finally (5) franchisors’ obligations are not statistically different between groups, which we interpret as evidence that relational contracting mechanisms do not substitute formalization.  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