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   895篇
  免费   13篇
各国政治   51篇
工人农民   133篇
世界政治   62篇
外交国际关系   55篇
法律   422篇
中国政治   8篇
政治理论   173篇
综合类   4篇
  2024年   11篇
  2023年   9篇
  2022年   9篇
  2021年   17篇
  2020年   35篇
  2019年   46篇
  2018年   48篇
  2017年   53篇
  2016年   53篇
  2015年   29篇
  2014年   33篇
  2013年   151篇
  2012年   41篇
  2011年   38篇
  2010年   18篇
  2009年   30篇
  2008年   32篇
  2007年   36篇
  2006年   17篇
  2005年   28篇
  2004年   18篇
  2003年   21篇
  2002年   32篇
  2001年   13篇
  2000年   9篇
  1999年   9篇
  1998年   5篇
  1997年   6篇
  1996年   10篇
  1995年   10篇
  1994年   3篇
  1993年   7篇
  1992年   6篇
  1991年   1篇
  1990年   4篇
  1989年   1篇
  1988年   4篇
  1987年   2篇
  1986年   4篇
  1985年   2篇
  1984年   1篇
  1982年   2篇
  1981年   1篇
  1979年   1篇
  1978年   1篇
  1977年   1篇
排序方式: 共有908条查询结果,搜索用时 15 毫秒
261.
Vetting those who work with children and vulnerable adults is an emotive topic and one which can prove a challenging area for employers. The legitimate interest that parents, carers and employers have in screening those charged with the care of others can be in direct conflict with the most fundamental principles of economic freedom and employees’ human rights. The desire to balance these conflicting objectives is at the heart of the Safeguarding Vulnerable Groups Act 2006, which introduces what is being heralded as the most inclusive and comprehensive vetting and barring system to date. The changes dramatically widen the scope of workers who are subject to vetting and barring processes, covering employees, volunteers and contractors in the education, care and health industries, and affecting some 11.3 million people in the UK. This new scheme is of particular relevance and importance to schools and other educational institutions, who will be directly affected by the changes. This article will examine the practical employment implications of the new regime and the new obligations that the Vetting and Barring Scheme creates for both employers and employees.  相似文献   
262.
This study investigated the influences of ethnicity, socioeconomic status, and ethnic peer group composition on awareness and internalization of socially sanctioned standards of appearance using the Sociocultural Attitudes Towards Appearance Questionnaire (SATAQ). The researchers surveyed a convenience sample of 208 adolescent females at an ethnically diverse urban high school. Statistical analyses found that ethnicity influenced awareness of socially sanctioned standards of appearance but the effects of ethnicity varied by level of caregiver educational attainment. Ethnicity and caregiver educational attainment together accounted for variance in the internalization of these standards. Moreover, African American girls with ethnically heterogeneous peer groups had significantly higher awareness and internalization scores than those without mixed friends. These findings highlight the importance of multiple ecological factors in assessing risk for disturbed body image and eating disorders. Ethnicity remains an important predictor of disturbed body image but should be treated as a dynamic, rather than a fixed risk factor.  相似文献   
263.
Expanded school mental health (ESMH) programs offer a comprehensive range of mental health services (evaluation, therapy, case management) to youth in special and regular education. Research is needed to document that these programs are in fact providing quality care to youth and leading to enhanced outcomes. In this exploratory study, focus groups were conducted with high school students receiving mental health services and students not receiving services, therapists, parents, administrators, and health care staff to gauge the quality and effectiveness of an ESMH program. It was difficult to schedule parents for group sessions; thus, interviews also were conducted with this group. Focus groups and interviews were effective methods for understanding strengths, areas for improvement, and outcomes for our ESMH program. Participants reported that therapy served as a protective factor, enhancing physical and mental health and reducing risk for teenagers. Ideas for improving clinical practice were developed from study results.  相似文献   
264.
A reference standard for gamma-hydroxybutyric acid (GHB) free acid is not commercially available, making its analysis in forensic exhibits more difficult. GHB free acid is typically encountered in aqueous solution and in the presence of the lactone, gamma-butyrolactone (GBL), presenting difficulty in Fourier transform infrared (FT-IR) analysis. The strong infrared (IR) absorptivity of the GBL carbonyl band, the shifting of the GBL carbonyl band in aqueous solutions, and the position of the O-H bend for water can mask the main carbonyl band for GHB free acid. Model solutions of beta-hydroxybutyric acid (BHB) and GBL were studied in order to further understand the masking of the GHB free acid carbonyl band in FT-IR analysis. The use of second derivative FT-IR spectroscopy was shown to provide resolution of the free acid carbonyl band, and a presumptive test for GHB free acid was developed and applied. An extension of this work included preparing, for use as a standard reference material, small amounts (< or = 10 mg) of GHB free acid. Preparation was based on the instantaneous reaction of GHB's sodium salt with a stoichiometric amount of hydrochloric acid in aqueous solution, and subsequent isolation of the free acid in neat liquid form. Both FT-IR and proton nuclear magnetic resonance spectra of the neat reference material were obtained and used to verify its identity. The isolation of GHB free acid from actual forensic exhibits is also presented, with identity confirmation using FT-IR.  相似文献   
265.
One consequence of the tremendous growth in the number of persons under supervision of the criminal justice system, whether incarcerated, on parole, or on probation, is the effect of this criminal history on finding and keeping a job. Ex-offenders, especially those recently released from prison, face substantial barriers to many types of legal employment; nonetheless, stable employment is one of the best predictors of post-release success. Thus, policy-makers concerned about high recidivism rates face an obvious need to improve the employment prospects of ex-offenders. Over the last 25 years, many programs that were designed to increase employment (and, by so doing, reduce recidivism) among ex-offenders have been implemented and evaluated. [Wilson, D. B., Gallagher, C. A., Coggeshall, M. B. & MacKenzie, D. L. (1999). Corrections Management Quarterly 3(4), 8–18; Wilson, D. B., Gallagher, C. A. & MacKenzie, D. L. (2000). Journal of Research in Crime and Delinquency 37(4), 347–368] conducted a quantitative synthesis and meta-analysis of 33 evaluations of educational, vocational, and work programs for persons in correctional facilities. To date, however, the evaluation literature on employment programs for those with a criminal record who are not in custody has not been systematically reviewed. This paper presents the results of a quantitative meta-analysis of eight random assignment studies of such programs, using the Campbell Collaboration methodology. The results indicate that this group of community employment programs for ex-offenders did not reduce recidivism; however, the experimental design research on this question is small and does not include some of the promising community employment programs that have emerged in the last decade.  相似文献   
266.
267.
One of the most frequent causes of death in developed countries is sudden natural death (SND), which is the most common indication for medico-legal autopsies. Cardiac diseases are frequently detected among SND. Mitochondrial DNA (mtDNA) is easily damaged by reactive oxygen species, and it may cause dysfunction in tissues, leading to early events in cardiovascular disease. A specific mtDNA deletion of 4977 bp is associated to aging, myocardial dysfunction, and bioenergetic deficit. The potential link between mtDNA damage and SND has not been investigated before. Our aim was to evaluate the accumulation of the common mtDNA4977-deletion in cardiac muscle samples from autopsies of SND in adults (n = 14) in comparison to control samples from unnatural deaths (n = 12). Serial dilution-polymerase chain reaction method was performed to estimate the proportion of the total mtDNA harboring the mtDNA4977-deletion. Coefficient variation intra-assay was 8%, and inter-assay was 12%. MtDNA4977-deletion percentage was higher in samples obtained from victims of SND than in those from subjects who died of unnatural causes (p < 0.05). No differences in mtDNA4977-deletion were found between SND victims 39-51 years old, and no correlation was found between these samples and age, r = 0.30, p = 0.29 while it was significant among control samples, r = 0.68, p < 0.05. The association between mtDNA4977 deletion with SND victims might offer a tool to provide additional information to clarify complex SND investigations.  相似文献   
268.
Mediation is an essential component of custody evaluation and reconciliation services in domestic courts. Data from 306 couples with and without a reported history of domestic violence (DV) who were ordered to attend an assessment for mediation were analyzed to determine differences in the mediation process. More than one third reported a history of DV. Chi-square analysis showed that differences in the mediation process exist between couples reporting DV and couples reporting no DV. A greater proportion of couples with reported DV (a) actually attended the court-mandated assessment session, (b) were deemed unsuitable to participate in the mediation process, (c) were in default of child-support payments, and (d) reported drug and alcohol abuse. No significant differences were found between the two groups in the measured mediation outcomes. Implications for the use of mediation with couples who reported DV and recommendations for future research are discussed.  相似文献   
269.
Milton's Case for a Free Commonwealth   总被引:1,自引:0,他引:1  
This article will examine the development of John Milton's arguments for democracy as against monarchy and other sorts of autocratic rule. These arguments are interesting both in their own right and insofar as they shed light on historiographical debates concerning the classical republican tradition. Milton is shown to hold a negative conception of liberty, as opposed to a positive or participatory conception, which lends support to the neo-roman interpretation of that tradition, associated with Quentin Skinner and Philip Pettit. However, it is further shown that Sinner and Pettit misunderstand the classical republicans' case for democracy, attributing to them a conceptual argument in place of an empirical one. A better understanding of Milton's political theory contributes to a better understanding of this dilemma, and perhaps suggests a solution.  相似文献   
270.
This investigation is an empirical evaluation of Esuba, an abuse awareness program implemented in the Florida correctional system. Research has indicated a link between violent and abusive behavior and criminal activity. This study specifically addressed whether the Esuba program had an impact on offenders' self-esteem, stability of self, faith in people, and sensitivity to criticism as measured by the Rosenberg Self-Esteem Scale. The results from the application of the Esuba program to an incarcerated offender population are encouraging. The results suggest that the Esuba program does appear to significantly increase offenders' emotional self-preservation.  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