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   583篇
  免费   19篇
各国政治   36篇
工人农民   82篇
世界政治   39篇
外交国际关系   29篇
法律   288篇
中国政治   6篇
政治理论   118篇
综合类   4篇
  2024年   2篇
  2023年   5篇
  2022年   7篇
  2020年   10篇
  2019年   8篇
  2018年   15篇
  2017年   18篇
  2016年   26篇
  2015年   12篇
  2014年   11篇
  2013年   90篇
  2012年   17篇
  2011年   18篇
  2010年   16篇
  2009年   16篇
  2008年   17篇
  2007年   23篇
  2006年   19篇
  2005年   15篇
  2004年   23篇
  2003年   17篇
  2002年   10篇
  2001年   12篇
  2000年   11篇
  1999年   12篇
  1998年   11篇
  1997年   10篇
  1996年   9篇
  1995年   8篇
  1994年   13篇
  1993年   13篇
  1992年   11篇
  1991年   12篇
  1990年   14篇
  1989年   5篇
  1988年   10篇
  1986年   3篇
  1985年   8篇
  1984年   6篇
  1983年   7篇
  1982年   5篇
  1980年   5篇
  1979年   5篇
  1977年   2篇
  1975年   5篇
  1974年   1篇
  1973年   1篇
  1972年   2篇
  1970年   1篇
  1968年   1篇
排序方式: 共有602条查询结果,搜索用时 31 毫秒
491.
In this article we present the results of our studies of gender construction at work in Icelandic fish plants. Our aim is to contribute to the understanding of the processes involved in the gendering of jobs, labour and the organization of work and their interrelations. We argue that an examination of these factors can shed light on larger questions of gender segregation, women's lower position in the labour force and how gender categories and identities are constructed and reconstructed in the workplace.  相似文献   
492.
The proliferation of adulterated health foods and beverages in the market demands a comprehensive analytical strategy to identify the adulterants, particularly those of isomeric phosphodiesterase 5 (PDE5) inhibitors. An instant coffee premix (ICP) purchased from an online retailer was flagged for suspected adulteration through PDE5 inhibition assay. The ICP was then analysed using suspected-target and non-targeted screenings of a liquid chromatography-quadrupole time-of-flight mass spectrometry. Based on these findings, a PDE5 inhibitor initially assigned as compound X was isolated from the ICP by employing a liquid chromatography-diode array detection before its structural elucidation with liquid chromatography-ultraviolet (LC-UV) spectroscopy and nuclear magnetic resonance (NMR) spectroscopy. The suspected-target screening matched the protonated molecule ([M + H]+) precursor ion of compound X at m/z 499.2310 with two suspected analytes that are structural isomers of one another. The fragmentation patterns of compound X were comparable to those analogues in the dithiocarbodenafil group through the non-targeted screening. These findings, complemented by the LC-UV and NMR spectroscopy data, together with the chromatographic separation of related structural isomers, conclude the identity of compound X. To our best knowledge, this is the first study to report the presence of 3,5-dimethylpiperazinyl-dithiodesmethylcarbodenafil in an ICP sample.

Key points

  • The herbal-based male sexual performance products’ lucrative market has instigated their rampant adulteration, particularly with PDE5 inhibitors.
  • The adulterated products may also contain analogues of the approved PDE5 inhibitors, which usually passed into the market undetected as they are not included in the routine targeted screening procedure.
  • The present study detected, isolated, and identified an isomeric sildenafil analogue from an instant coffee premix sample using rapid qualitative assay and comprehensive analytical analysis.
  • This paper highlighted the applicability of the established strategies for routine casework, particularly in a forensic drug testing laboratory.
  相似文献   
493.
494.
Objectives

We examine the extent to which individuals' knowledge of an advanced police technology (license plate recognition or "LPR") may impact perceptions of police. Technologies with the capacity to track individuals' movements are becoming increasingly common in police practice. Although these technologies may yield positive benefits, their use may also heighten community concerns about increased surveillance, data storage, and data security, thereby potentially negatively impacting community-police relationships.

Methods

We utilize a survey-based experiment with randomized assignment of participants (n=405) to investigate the impact of individuals' knowledge of LPR use on a variety of police perceptions, including trust in police, community approval, respect for citizens, and respect for individual rights.

Results

Most respondents were unaware of LPR use prior to the survey. When compared with a control group, respondents who encountered brief mentions of LPR functions on the survey expressed significantly lower levels of trust in police. Additionally, "strong agreement" with other positive statements about police also appears to have declined in this sample in response to LPR information. Notably, the sample contained high pre-existing levels of trust and support for police, factors which may have moderated the impacts of LPR information.

Conclusions

These results support the hypothesis that awareness of LPR use may negatively impact perceptions of police, including trust in police. More generally, although technologies like LPR represent technological innovations, they may also yield unintended consequences, including the potential to undermine police-community relations if adoption decisions are not accompanied by sufficient transparency or community support.

  相似文献   
495.
This study aims to investigate Swedish language reading ability of forensic patients and the number of them that present a dyslexia profile. Another aim is to compare the reading level in different subtypes of psychiatric diagnoses. Assessments were made of 185 patients by a battery of reading tests. They were also interviewed about their schooling and their self-estimated reading and writing ability. The results show that the patients’ reading level is below average for grade six children in Swedish compulsory school, and that 16 per cent show a dyslexic profile. Male patients with an immigrant background and a diagnosis of psychosis and anxiety disorders perform the lowest when measuring literacy skills. This proportionately low reading ability can cause difficulties in understanding texts as presented in broadsheet newspapers, civic information and patient records, and might even jeopardize the understanding of adult spoken language.  相似文献   
496.
The Association of Family and Conciliations Courts (AFCC) Task on Brief Focused Assessment was convened in 2007 to study the issues inherent in the use of brief focused assessment models in family courts. The resultant “Guidelines for Brief Focused Assessment” were approved by the AFCC Board of Directors in 2009 and are presented here to prompt discussion and further dialogue about this clearly needed practice.
    Key Points for the Family Court Community
  • Issue‐specific assessments are increasingly requested by family court judges
  • Practice guidelines for clinicians conducting brief focused assessments (BFAs)
  • Types of issues/questions appropriate for BFAs
  • Advantages and pitfalls of BFAs
  • Comparison of BFAs and comprehensive child custody evaluations
  相似文献   
497.
498.
499.
500.
This paper brings together Alexis Wright’s novel, The Swan Book [2013a, Artamon, NSW: Giramondo] and the concept of fabulation from Gilles Deleuze and Felix Guattari’s philosophical approach to literature. I employ their approach to explore the complex relation to history and language that Wright’s highly poetic novel illustrates: a relation to untimely and inhuman life that suggests other possibilities for living within the body politic than are currently available.  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