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排序方式: 共有137条查询结果,搜索用时 15 毫秒
71.
This study examined the relationship between psychometric test scores, psychometric test profiles, and sexual and/or violent reconviction. A sample of 3,402 convicted sexual offenders who attended a probation service-run sexual offender treatment programme in the community completed a battery of psychometric tests pre- and posttreatment. Using Cox regression, posttreatment scores on measures of self-esteem, an ability to relate to fictional characters, and recognition of risk factors were, individually, predictive of recidivism. When psychometric tests were grouped into dynamic risk domains, only the pretreatment scores of the domain labelled socioaffective functioning (SAF) predicted recidivism and added predictive power to a static risk assessment. The number of risk domains that were dysfunctional pretreatment also predicted recidivism outcome; however, this did not add predictive power to a static risk assessment tool. Possible explanations for the superiority of pre- over posttreatment scores in predicting reconviction are discussed, and directions for further research considered.  相似文献   
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In this study we estimated the combined effects of violence experiences, parenting processes, and community poverty on sexual onset, alcohol or other drug (AOD) use at last sex, multiple sex partners, and prior pregnancy in a sample of 7th-, 9th-, and 11th-grade adolescents (n = 7,891), and the subsample of sexually experienced adolescents (n = 2,108). Multilevel multivariate logistic regression analyses revealed that having experienced any interpersonal violence, and low levels of perceived parental warmth and parental knowledge predicted sexual onset. Adult sexual abuse or peer sexual coercion increased the odds for AOD use at last sex and having multiple sexual partners. When demographic, violence experiences and parenting behaviors were accounted for, poverty was not associated with sexual onset, AOD use at last sex, or multiple sex partners. Results suggest prevention efforts to reduce teen dating violence may be especially important to diminish sexually risky behaviors among adolescents.  相似文献   
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Numerous accounts of contemporary liberal democratic citizenship focus on the introduction and subsequent erosion of social citizenship rights through neo-liberal governing practices. These studies demonstrate that the progressive erosion of social entitlements and social policies has aggravated poverty, economic insecurity, and social exclusion, especially among already marginalized groups and those with tenuous links to the wage economy. Less attention, however, has been directed to the implications of withering social citizenship rights and associated social policies for the ongoing generation of social solidarities and collective identities. This article draws upon the Speeches from the Throne of the Federal Parliament to demonstrate the recent and complex interrelationships among social citizenship, national identity, and social solidarity in Canada. It argues that, in the immediate post-World War Two years, the idea of social citizenship was conflated with federally inspired discourses of pan-Canadian nationalism. The decline in social programs during the past two decades in Canada thus has represented more than simply a shift in governing philosophies and practices. Rather, neo-liberal governance has challenged Canadians', especially English Canadians', sense of shared identity and national community. The article concludes by examining the most recent and unsuccessful attempts by the federal government to rebuild and reaffirm a sense of shared identity and community.  相似文献   
76.
Elemental compositions of each of 100 to 500 different constituents (i.e., every peak in a mass-to-charge ratio range, 50 < m/z < 300) of lighter fluid, kerosene, turpatine, gasoline, diesel fuel, and two brands of mineral spirits (and their weathered analogs) make possible direct identification of each accelerant in a experimental fire, based on electron ionization 6.0 Tesla Fourier transform ion cyclotron resonance (EI FT-ICR) ultrahigh resolution mass spectrometry. Septum injection of as little as 500 nL of accelerant into an all-glass heated inlet system yields definitive elemental compositions (molecular formulas) based on accurate (< +/-1 ppm average error) mass measurement alone. Extraction and EI FT-ICR mass analysis of fire debris from a controlled burn of a couch with simple (lighter fluid) and complex (turpatine) ignitable liquid yielded dozens of elemental compositions serving as a unique "fingerprint" for each petroleum product, despite the presence of up to 249 additional extracted matrix and pyrolysis components. Forty-five of 56 lighter fluid constituents and 126 of 133 turpatine constituents (not counting 13C-containing species) were identified in the debris from a fire staged for each respective accelerant.  相似文献   
77.
Most commercially available STR amplification kits have never been fully validated for low template DNA analysis, highlighting the need for testing different PCR kits and conditions for improving single-cell profiling. Here, current strategies rely mainly on adjusting PCR cycle number and analytical threshold settings, with a strong preference for using 30 amplification cycles and thresholds at 30–150 RFU for allele detection. This study aimed to (1) determine appropriate conditions for obtaining informative profiles utilizing a dilution series, and (2) test the outcome on single cells using the DEPArray™ technology. Four routinely applied forensic STR kits were compared by using three different amplification volumes and DNA dilutions down to 3.0 pg, while two well-performing kits were used for single/pooled leucocyte and sperm cell genotyping. Besides reduced costs, the results demonstrate that a 50%–75% PCR volume reduction was beneficial for peak height evaluation. However, this was counteracted by an increased artifact generation in diluted DNA volumes. Regarding profile completeness, the advantage of volume reduction was only prominent in samples processed with Fusion 6C. For single and pooled cells, ESIFast and NGMDetect provided a solid basis for consensus profiling regarding locus failure, although locus dropouts were generally observed as stochastic events. Amplification volume of 12.5 μL was confirmed as appropriate in terms of peak heights and stutter frequencies, with increased stutter peaks being the main artifact in single-cell profiles. Limitations associated with these analyses are discussed, providing a solid foundation for further studies on low template DNA.  相似文献   
78.
Regular consumption of fruits and vegetables is associated with a decreased risk of cardiovascular disease and all‐cause mortality. Access to fresh produce is limited for individuals and families experiencing food insecurity. Emergency food programs, including food pantries, are important institutions for assuring access to nutritional foods for this population, including fresh produce. Produce availability at such institutions is on the rise thanks to donation, gleaning, food bank purchases, recovery programs multiscale policy interventions. These efforts also have coupled economic and environmental benefits for producers and retailers as surplus food is redirected from the waste stream, where it would otherwise produce greenhouse gases that contribute to climate change. Although varied surplus produce recovery programs have been implemented around the country and the world, little modeling of potentially synergistic impacts has accompanied their implementation. Thus, there remains sparse understanding of system‐wide joint implications economically, environmentally, nutritionally, and epidemiologically. The goal of this paper is to offer a novel dynamic modeling framework capable of assessing environmental, nutritional, and health impacts of policies and programs in the food recovery and redistribution system. This unique framework serves as a scientific basis for implementing best management practices and policies to improve the sustainability of U.S. food systems.  相似文献   
79.
This article presents an empirical investigation of young partisan first-time voter attitudes toward the use of negative attack advertising in a British general election. Partisanship, particularly in relation to negative advertising and third-party effects, is significantly under-researched, yet it advances understanding of youth electoral interaction. Our study confirms that young British partisans are not passive recipients of information, but are actively involved in information processing, interpretation, and counter arguing. Our findings also highlight a third-party effect among young partisans in their evaluation of the attack advertising. Overall our young partisans broadly reject image-attack election ads, which raises a “health warning” on its use in future election campaigning. The findings of this study are of significant interest to election campaign strategists in their planning for future elections and to political researchers striving to advance understanding within the field of political marketing.  相似文献   
80.
Cumulating the Intellectual Gold of Case Study Research   总被引:3,自引:0,他引:3  
Two criticisms of public administration research have been leveled. First, knowledge in the field is not being cumulated. Second, the research has low quality. A preference for case studies as a form of scientific inquiry is behind both criticisms. The authors propose a solution to the first problem by showing how meta-analysis can be used to cumulate knowledge using case study evidence. Viewed cumulatively, case studies comprise an intellectual goldmine awaiting discovery. The authors challenge the second criticism, proposing that quality judgments should be based on the important principle of knowledge cumulation, which acknowledges the value of all research methods.  相似文献   
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