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   567篇
  免费   50篇
各国政治   38篇
工人农民   55篇
世界政治   69篇
外交国际关系   27篇
法律   276篇
中国政治   11篇
政治理论   135篇
综合类   6篇
  2023年   5篇
  2022年   2篇
  2021年   5篇
  2020年   12篇
  2019年   12篇
  2018年   23篇
  2017年   39篇
  2016年   30篇
  2015年   24篇
  2014年   20篇
  2013年   97篇
  2012年   18篇
  2011年   17篇
  2010年   18篇
  2009年   12篇
  2008年   21篇
  2007年   12篇
  2006年   21篇
  2005年   16篇
  2004年   14篇
  2003年   22篇
  2002年   11篇
  2001年   7篇
  2000年   12篇
  1999年   13篇
  1998年   14篇
  1997年   9篇
  1996年   7篇
  1995年   10篇
  1994年   10篇
  1993年   10篇
  1992年   11篇
  1991年   8篇
  1990年   7篇
  1989年   3篇
  1988年   4篇
  1987年   7篇
  1986年   2篇
  1985年   3篇
  1984年   3篇
  1979年   7篇
  1976年   2篇
  1974年   1篇
  1973年   1篇
  1971年   1篇
  1970年   2篇
  1969年   1篇
  1968年   2篇
  1956年   2篇
  1955年   1篇
排序方式: 共有617条查询结果,搜索用时 15 毫秒
581.
This study sought to examine the relationship between homelessness and behavior problems among a community-based sample of youth in North Texas. Data were obtained from a cross-sectional, probability sample of households and a targeted sample of homeless families in Dallas, Texas, with children older than 5 years old (N?=?5232). Parents were asked to report five behavior problems on behalf of their children including arrest or trouble with police, academic problems, behavior problems at school, suspension, and suicide attempts. Logistic and negative binomial regression procedures were used to examine the relationship between homelessness and behavior problems. Youth exposed to homelessness were 36% (OR?=?1.63; 95% CI 1.00–1.85) more likely to exhibit any kind of behavior problems than youth who had never experienced homelessness. Homeless youth had 5.51 times the odds of arrest (95% CI 2.60–11.68), 1.74 times the odds of academic problems (95% CI 1.24–2.43), and more than 3 times the odds of suicide attempts (95% CI 1.46, 7.61) than youth who had never been homeless. Homelessness was associated with higher rates of problem behavior, including arrests, academic problems, and suicide attempts. Because homeless youth are commonly enrolled in school and present at health care clinics and emergency departments, clinics and schools may aid in the identification of homeless youth, as well as referral to care. In this way, clinicians may help reduce the burden of behavioral problems that disproportionately affect homeless youth.  相似文献   
582.
This paper uses the natural experiment of seat allocation in the first Czech Senate to assess the effects of incentives on legislative effort. Contrary to previous work using similar research designs, the incentive of longer terms has little effect on the effort levels of legislators. This may reflect the parliamentary context, the newness of the Czech Senate, or, most interestingly, political culture.  相似文献   
583.
Motor vehicle collisions (MVCs) are very common, and they often result in neck and shoulder injuries that are referred to as whiplash-associated disorders (WAD). The largest percentage of WAD are relatively minor and do not reveal any evidence of objective, structural pathology. However, for a substantial percentage of individuals, WAD evolves into chronic, disabling conditions characterized by pain and other symptoms. A range of pre-morbid, collision-related, biomechanical, and psychosocial responses to the MVC have been investigated to determine the manner in which these responses serve to exacerbate and maintain WAD symptoms. In this article, we review the literature investigating these potential causal, amplifying, and perpetuating factors from a biopsychosocial perspective. We emphasize the range of psychological factors and the post-MVC legal and compensation factors that have been identified as significant contributors to the persistence of symptoms and ensuing disability. We highlight the ways in which psychological and legal factors need to be integrated with biological factors to better understand and prevent WAD and treat individuals who experience WAD to reduce chronicity and disability.  相似文献   
584.
A significant number of persons involved in motor vehicle collisions (MVCs) evidence persistent changes in physical, psychosocial, and cognitive functioning consequent to physical injury. While post-injury impairment and disability can sometimes be predicted with knowledge of injury type and injury severity, post-injury experiences of pain, psychological distress, cognitive dysfunction, and role disruption have been determined to contribute to injury-related impairment and disability. This article represents the second part of a two-part review of MVCs and their consequences. In part I of the review, research findings related to physical, psychosocial, and cognitive changes that occur consequent to injury-causing MVCs are described. In this article, measures used to document the severity of physical injuries are reviewed, along with the most widely accepted definitions of impairment and disability. Models that have been proposed to explain the progression from injury to impairment and disability are reviewed, including a more recently proposed model created specifically to guide the assessment and management of MVC-related outcomes. The greater part of this article is devoted to the review of findings related to physical, psychological, and cognitive predictors of post-MVC impairment and disability. The relation of these predictors to post-MVC impairment and disability is described across three specific injury contexts: (1) whiplash-associated disorders, (2) traumatic brain injury, and (3) polytrauma. In each context, findings related to recovery of function in the form of return to work are summarized, along with findings related to the contribution of compensation to injury-related symptoms and impairments. Although not characterized as a physical injury, chronic pain serves frequently as the post-injury symptom that persists beyond all injury management and rehabilitation efforts and that contributes significantly to MVC-related functional impairment, disability, and emotional distress. It is appropriate, therefore, to include in this review a discussion of those MVC studies that specifically address impairment and disability occurring in relation to chronic pain. The article ends with the identification of ongoing research challenges and future directions for both the study of MVCs and their associated sequelae and clinical practice with persons who are experiencing the consequences of MVC-related injuries.  相似文献   
585.
Motor vehicle collisions (MVCs) have a significant impact on injured persons and society. MVCs generally result in property damage, but more serious MVCs often result in physical injuries that have significant physical, psychosocial, and cognitive consequences, all of which may result in long-standing functional impairment and disability as well as marked changes in quality of life. This article represents the first part of a two-part review of MVCs; the complex and interactive array of physical, psychosocial, and cognitive changes that occur consequent to injury-causing MVCs; and the person and environmental factors that best predict functional impairment and disability following an MVC. The current article provides an overview of the scope and significance of MVCs and summarizes the literature related to the physical injuries and the physical, psychosocial, and cognitive impairments that are most commonly experienced consequent to MVCs. Physical injuries reviewed in the current article include fractures, whiplash-associated disorders (WADs), traumatic brain injury (TBI), multiple traumatic injuries or polytrauma, and chronic pain conditions. These injuries and conditions are reviewed because of the relative quantity and quality of existing research related to these injuries and conditions. This article also provides a review of those psychological disorders that more commonly begin, recur, or are exacerbated in the aftermath of an MVC. The following psychological disorders are reviewed: posttraumatic stress disorder, complex posttraumatic stress disorder, major depressive disorder, somatic symptom disorder, and major neurocognitive disorder and mild neurocognitive disorder. Finally, this article ends with a brief discussion of changes in quality of life that can occur in relation to the physical injuries and psychological and neurocognitive disorders that are common consequences of MVCs. The final section of this article will serve to introduce part II of this review of MVCs and their consequences, in which predictors of MVC-related impairment and disability are discussed.  相似文献   
586.
587.
Williams M 《Ratio juris》2004,17(3):381-397
Abstract.  This paper considers approaches to the ethics of abortion and putative links to "rights" debates. In particular, it revisits two papers on the topic from the early 1970's, written by Judith Jarvis Thomson and John Finnis respectively. Consideration of the discourse produced by these papers to some extent reveals the strategic importance of linguistic and conceptual organisation—the rhetorical forces underlying claims to disinterested, analytical standing. In particular, the paper reviews the practical ethics analogy proposed by Thomson; the deployment of "Hohfeldian" rights analysis by John Finnis, the link to the abortion debate and the broader implications of such deployment in its relation to current "rights" discourse.  相似文献   
588.
A death following deliberate ingestion of approximately 75 g of probenecid in a 36-year-old man is described. Tissue concentrations of probenecid were highest in serum (710 mg/L) and liver (550 mg/kg). Probenecid was also detected in vitreous and bile. Ethanol was also detected in blood at 0.13 g/100 mL.  相似文献   
589.
590.
Psychopathy is a condition with important consequences both for individuals who experience it and for the communities in which they live. Although the assessment of psychopathy among adolescents remains controversial, some evidence suggests that the affective and behavioral traits of adult psychopathy begin to emerge in childhood (B. B. Lahey & A. Kazdin, 1990) and continue across the lifespan (A. E. Forth, S. D. Hart, & R. D. Hare, 1990). The present study used the Psychopathy Checklist: Youth Version (PCL:YV; A. E. Forth, S. D. Kosson, & R. D. Hare, in press) to retrospectively assess psychopathic characteristics, treatment process, and outcomes of 64 individuals referred for treatment to a substance abuse program for adjudicated adolescents. This study focused on the relationship between psychopathic characteristics and treatment process and outcome variables, including attrition rates, quality of participation, substance use throughout treatment, clinical improvement, and 12-month recidivism rates. Psychopathic characteristics were negatively related to treatment process and outcome variables, including attrition, participation, substance use, and clinical improvement. Psychopathic characteristics were positively related to the number of arrests in the 12 months following treatment completion. Implications for treatment and future research with adolescents displaying psychopathic characteristics are discussed.  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