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   284篇
  免费   19篇
各国政治   31篇
工人农民   15篇
世界政治   38篇
外交国际关系   15篇
法律   154篇
中国政治   1篇
政治理论   49篇
  2023年   7篇
  2022年   7篇
  2021年   8篇
  2020年   15篇
  2019年   20篇
  2018年   16篇
  2017年   27篇
  2016年   18篇
  2015年   8篇
  2014年   13篇
  2013年   41篇
  2012年   9篇
  2011年   7篇
  2010年   6篇
  2009年   6篇
  2008年   5篇
  2007年   15篇
  2006年   14篇
  2005年   21篇
  2004年   10篇
  2003年   8篇
  2002年   11篇
  2001年   2篇
  1999年   1篇
  1998年   1篇
  1997年   1篇
  1996年   1篇
  1992年   2篇
  1991年   1篇
  1984年   1篇
  1983年   1篇
排序方式: 共有303条查询结果,搜索用时 15 毫秒
11.
12.
I examine the use of flexible savings-and-loan accounts offered by SafeSave, a microfinance institution serving poor slum dwellers in Dhaka, Bangladesh. I find that 59 per cent of the clients co-hold, meaning that they borrow at high interest rates and simultaneously hold low-yield liquid savings. Co-holders could immediately pay down, on average, 32 per cent of their debt using liquid savings and thus avoid significant interest payments. The results show that co-holders are more likely to be regular workers subject to little income uncertainty, suggesting that co-holding is not a consequence of liquidity needs. The paper discusses alternative explanations.  相似文献   
13.
This article addresses the question of whether the economic crisis provides a politically opportune time to drastically curtail public healthcare in South Europe or whether, instead, there are signs of longer-term reform strategies for potentially balancing fiscal targets with the quest for enhanced value and health outcomes, when eventually growth resumes. After a brief examination of the profile of healthcare systems in Greece, Italy, Portugal and Spain prior to the crisis, we comparatively assess the mix of retrenchment, restructuring and recalibration strategies. The effects of the austerity-driven reforms on current (and expected) health outcomes are also briefly analysed. We conclude with reflections on the future of public healthcare in South Europe.  相似文献   
14.
My Heroine     
Desire is forced to maintain itself in this space between reality and pleasure, this frontier that power jealously controls with the help of innumerable frontier guards: in the family, at school, in the barracks, at the workshop, in psychiatric hospitals and, of course, at the movies (Guattari 1996a Guattari , Félix (1996a) , ‘A Cinema of Desire’ , trans. from the French by David L. Sweet , in Félix Guattari , Soft Subversions , ed. Sylvère Lotringer , New York : Semiotext(e) , pp. 14354 . [Google Scholar]:144).  相似文献   
15.
In Nona Faustine’s photo series of self-portraits, White Shoes, the artist’s body becomes the agent in exposing the instability of racialized historical geography. Faustine revisits New York City’s landmarks to address what is missing or made invisible: a slave ship, a fugitive woman’s rebirth, or African burial grounds. Making herself visible where she is supposed to remain invisible, she highlights the unacknowledged connection between national wealth, nationalism, geography, and black labor. She discloses the topography of her travels as a changeable terrain, where one slips from the national iconic to ambiguous and finally, to the sacred. I suggest that Faustine doesn’t seek to democratize the extant historical maps, but to shift the terms of reading the city’s geography. She lifts the boundaries between the polarized pathways of knowing – the secularized and the sacred, the living and the dead, the verifiable and the missing. This shift is also made possible by the medium of photography and a feminist turn towards pleasures in one’s body. As Faustine comes to terms with the psychic and cultural inheritance of the diaspora, she moves from the collective body of pain towards black women’s pleasure in their own bodies without purging the history of sexual trauma.  相似文献   
16.
As a sensitive area in international trade, animal welfare measures have encountered resistance in negotiations at the World Trade Organization (WTO). Consequently, alternative avenues have been pursued to reach international trade policy convergence. To further understand the contemporary trade politics of animal welfare, an empirical investigation was conducted on the interplay between European and Brazilian actors in the context of livestock production. By drawing upon diplomatic studies and the global governance literature, this study identifies and analyses initiatives that parallel the WTO approach and through which the development and implementation of mutually acceptable farm animal welfare measures have been pursued. Research findings indicate that a constellation of international non-diplomatic actors are currently engaged in influencing the future development of farm animal welfare measures. Among the initiatives that enable the alignment of European and Brazilian animal welfare policies and practices, there are soft instruments such as knowledge sharing and private standards. The rise of new actors and the use of soft instruments have been, to a certain extent, able to mitigate the tardiness of a WTO consensus regarding the use of animal welfare measures. However, there are concerns that the use of private standards has become a shortcut to circumvent the rigours of the multilateral trading system. This concern deserves a closer look because instead of paving the way, private standards may hamper trade relations which in turn hamper progress in animal welfare matters.  相似文献   
17.
The main goal of this research is to identify the reasons for gender differences in European volunteer rates in different types of voluntary organisations. To that end, we focus in volunteer rates at individual and national levels. We have drawn our data from the European Values Survey (EVS, 1999 and 2008). We have employed Logit models carrying out independent estimations for the individual likelihood of working as a volunteer for four categories: social awareness, professional, education and social justice. We have carried out independent estimations and we have also repeated estimations by gender subsamples. Our main result is that social factors might be even more relevant for decisions to volunteer than individual socio-economic factors. Specifying the peer group as much as possible allows better control of social variables. For example, studying the female volunteer rate is more relevant to control for the female national NGO membership rate than the total national rate. We also highlight important gender differences. For example, education is positively correlated with decisions to volunteer for both genders in all categories, but the educational effect is stronger for men in relation to professional activities and stronger for women in relation to social awareness and social justice activities.  相似文献   
18.
19.
Appraisals about the implications of stressful events that are evaluated as involving a threat to self (negative self-evaluation, negative evaluation from others, rejection by others) have been shown to place youth at risk for the development of mental health problems. This longitudinal study tested a protective-stabilizing interactive model, in which high maternal acceptance was predicted to mitigate the prospective relation between threat to self appraisals and change in adolescents’ mental health problems six months later. Participants were 89 adolescents from divorced families ages 10–12 and residential mothers. Adolescents reported on threat to self appraisals from the most stressful event experienced in the past month. Mothers and youth reported on maternal acceptance and mental health problems. Multiple regression analyses provided support for the protective effects of maternal acceptance on adolescents’ mental health problems. Intervention implications are discussed. Ana Brown is a pre-doctoral fellow in prevention research (NIMH 2 T32 MH18387–19) and doctoral student in the Department of Psychology at Arizona State University, Tempe, AZ. Research interests include the study of children’s appraisals and responses to stressful events in the prevention of mental health problems. Sharlene Wolchik is a clinical psychologist and professor in the Department of Psychology at Arizona State University, Tempe, AZ. Her research focuses on identifying risk and protective factors for children whose parents have divorced. She also has designed and evaluated the efficacy of preventive interventions for children from divorced families and children who have experienced parental bereavement. Jenn-Yun Tein is a research associate professor and Co-Director of the Research Methodology Core of the Prevention Research Center at Arizona State University, Tempe, AZ. Her research interests include analyses of mediation and moderation of preventive interventions as well as applications of methodology and statistics in prevention research. Irwin Sandler is a Regents’ Professor in the Department of Psychology and Director of the Prevention Research Center at Arizona State University, Tempe, AZ. His research interests focus on understanding resilience for children exposed to stress and on the development, evaluation and dissemination of programs to promote resilience and prevent mental health problems for children in stress.  相似文献   
20.
A sensitive analytical method was developed for quantitative analysis of delta(9)-tetrahydrocannabinol (delta(9)-THC), 11-nor-delta(9)-tetrahydrocannabinol-carboxylic acid (delta(9)-THC-COOH), cannabinol (CBN) and cannabidiol (CBD) in human hair. The identification of delta(9)-THC-COOH in hair would document Cannabis use more effectively than the detection of parent drug (delta(9)-THC) which might have come from environmental exposure. Ketamine was added to hair samples as internal standard for CBN and CBD. Ketoprofen was added to hair samples as internal standard for the other compounds. Samples were hydrolyzed with beta-glucuronidase/arylsulfatase for 2h at 40 degrees C. After cooling, samples were extracted with a liquid-liquid extraction procedure (with chloroform/isopropyl alcohol, after alkalinization, and n-hexane/ethyl acetate, after acidification), which was developed in our laboratory. The extracts were analysed before and after derivatization with pentafluoropropionic anhydride (PFPA) and pentafluoropropanol (PFPOH) using a Hewlett Packard gas chromatographer/mass spectrometer detector, in electron impact mode (GC/MS-EI). Derivatized delta(9)-THC-COOH was also analysed using a Hewlett Packard gas chromatographer/mass spectrometer detector, in negative ion chemical ionization mode (GC/MS-NCI) using methane as the reagent gas. Responses were linear ranging from 0.10 to 5.00 ng/mg hair for delta(9)-THC and CBN, 0.10-10.00 ng/mg hair for CBD, 0.01-5.00 ng/mg for delta(9)-THC-COOH (r(2)>0.99). The intra-assay precisions ranged from <0.01 to 12.40%. Extraction recoveries ranged from 80.9 to 104.0% for delta(9)-THC, 85.9-100.0% for delta(9)-THC-COOH, 76.7-95.8% for CBN and 71.0-94.0% for CBD. The analytical method was applied to 87 human hair samples, obtained from individuals who testified in court of having committed drug related crimes. Quantification of delta(9)-THC-COOH using GC/MS-NCI was found to be more convenient than GC/MS-EI. The latter may give rise to false negatives due to the detection limit.  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