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   1542篇
  免费   53篇
各国政治   77篇
工人农民   123篇
世界政治   242篇
外交国际关系   88篇
法律   723篇
中国政治   11篇
政治理论   322篇
综合类   9篇
  2023年   3篇
  2022年   10篇
  2021年   16篇
  2020年   43篇
  2019年   42篇
  2018年   54篇
  2017年   61篇
  2016年   53篇
  2015年   53篇
  2014年   52篇
  2013年   203篇
  2012年   54篇
  2011年   48篇
  2010年   47篇
  2009年   47篇
  2008年   52篇
  2007年   47篇
  2006年   80篇
  2005年   81篇
  2004年   55篇
  2003年   60篇
  2002年   61篇
  2001年   32篇
  2000年   42篇
  1999年   26篇
  1998年   23篇
  1997年   22篇
  1996年   20篇
  1995年   20篇
  1994年   20篇
  1993年   16篇
  1992年   11篇
  1991年   6篇
  1990年   13篇
  1989年   21篇
  1988年   14篇
  1987年   9篇
  1986年   7篇
  1985年   6篇
  1984年   11篇
  1983年   9篇
  1982年   8篇
  1980年   5篇
  1979年   5篇
  1978年   3篇
  1977年   4篇
  1975年   3篇
  1974年   3篇
  1969年   5篇
  1967年   2篇
排序方式: 共有1595条查询结果,搜索用时 15 毫秒
941.
Changes in family formations in western industrialized countriessince the 1960s have not been reflected in cross-national researchin the area of child maintenance. This article outlines childsupport regimes in 14 countries, considering the locus of formaldecision making, the determination of child maintenance obligations– highlighted by way of national informant responses totwo fictitious vignette scenarios – and the enforcementand penalty provisions used in the event of non-compliance.The article concludes that while some broad trends can be identifiedacross countries, there is diversity in how countries respondto family change.  相似文献   
942.
Free fluorescent dyes from PCR primers or amplification products can interfere with the interpretation of STR alleles in an electropherograph especially when the profiles have a low signal intensity. These artefacts can be removed by using a simple procedure based on BigDye® XTerminator™. This procedure requires limited amounts of PCR product, allows to do several loadings on a capillary sequencer starting from the same purified PCR product and also increases the sensitivity for detection of less amplified loci.  相似文献   
943.
Abstract:  Substance use has an effect on an individual's propensity to commit acquisitive crime with recent studies showing substance users more likely to leave forensic material at a crime scene. An examination of acquisitive crime solved in Northamptonshire, U.K., during 2006 enabled 70 crime scene behavior characteristics to be analyzed for substance and nonsubstance use offenders. Logistical regression analyses have identified statistically significant crime scene behavior predictors that were found to be either present at or absent from the crime scene when the offender was a substance user. Most significant predictors present were indicative of a lack of preparation by the offender, irrational behavior, and a desire to steal high value, easily disposed of, property. Most significant predictors absent from the crime scene were indicative of more planning, preparation, and execution by the offender. Consideration is given to how this crime scene behavior might be used by police investigators to identify offenders.  相似文献   
944.
Abstract:  The number of people who cannot be identified at the time of death, sometimes referred to as John or Jane Does, is unknown, and little is known about them as a group. The study's objectives were to estimate the number of annual unidentified deaths, to identify demographic characteristics associated with dying unidentified, to determine whether the rates of such deaths vary geographically or over time, and to better characterize the causes of death. This was a population-based surveillance study of data collected from death certificates from 1979 to 2004 in the U.S. Subjects were selected by the absence of name, date of birth, and Social Security Number on their certificates. Main outcome measures were distributions by age, sex, and underlying cause of death and rates by sex, race, year, and state of death. An average of 413 unidentified persons died each year. The peak year was 1987 with 691 deaths, a rate of 28.5 per 10 million people. The rate declined to 9.7 per 10 million in 2004. Most unidentified decedents were male (80.6%). Unidentified death rates were highest among black people and in the Southwest. Among deaths for which the cause was known, 82.7% were due to injuries. Among injury deaths, 31.8% were homicides. Improvement in identification technology may have reduced rates of unidentified death since the 1980s. In addition, variations in rates of unidentified decedents may reflect changes in risk factors such as homelessness and substance abuse.  相似文献   
945.
The current study extends previous research on marital rape and acceptance of general rape myths by comparing the perceptions of undergraduate college students (n = 85) to those of college alumni/ae (n = 44) who graduated from the same university three decades earlier. Participants read a hypothetical rape scenario that depicted the perpetrator as either the victim's husband or neighbor and completed three measures of different aspects of rape myth acceptance. Results indicated that although participants reported fairly low levels of support for different aspects of rape myths, certain rape myths were more strongly endorsed than were others. Furthermore, rape myth acceptance was stronger for marital rape than for acquaintance rape and for undergraduates than for college alumni/ae. Practical and theoretical implications of this study are discussed.  相似文献   
946.
This study examined the relationship between intimate partner violence and adult attachment in a sample of 70 couples. The attachment style of each partner and the interaction of the partners' attachment styles were examined as predictors of intimate partner violence. Additional analyses were conducted to examine violence reciprocity and to explore differences in the relationship between attachment and violence using continuous and dichotomous violence measures. Results of hierarchical regression analyses indicated the "mispairing" of an avoidant male partner with an anxious female partner was associated with both male and female violence. When controlling for partner violence, the relationship between attachment and violence was significant for males only. In addition, analyses using a dichotomized violence variable produced different results from analyses using a continuous violence measure. Clinical implications include focusing on the discrepancy between partners' needs for intimacy and distance within the couple as a strategy for treating intimate partner violence.  相似文献   
947.
The present study prospectively explored the predictors of resistance strategies to a sexual assault situation. Participants were assessed at the beginning of an academic quarter on a number of variables, including past history of sexual victimization, perceived risk of sexual victimization, and intentions to use specific types of resistance strategies. Only women who reported being victimized over the interim (N=68) were included in the analyses, which suggested that women's Time 1 intentions to utilize assertive resistance strategies (e.g., physically fight, run away) and offender aggression predicted women's use of assertive resistance strategies in response to the assault that occurred over the follow-up. Women's utilization of nonforceful verbal resistance (e.g., reason, plead, quarrel) was predicted by perpetrator aggression and previous sexual victimization. Women's immobility (e.g., turn cold, freeze) during the assault that took place over the interim was predicted by experiences of childhood sexual victimization and previous sexual victimization.  相似文献   
948.
The exponential rise in probation caseloads has necessitated that some jurisdictions contract with private probation agencies and community-based private treatment providers. Regulations that monitor private providers are ill defined or absent, leaving standards open to broad interpretation. Attorneys in one jurisdiction that used private providers were surveyed to measure their beliefs about private treatment providers for people sentenced to probation. The research found that attorneys supported private provider representatives being present in court to contact defendants and to provide evidence to strengthen probation violations. Private agency reputation and standardized criteria were important to establish qualifications in offering supervision and treatment services.  相似文献   
949.
This article is an innovative piece and at the same time—a timely piece, in a world of global warming. A time in which fierce scientific debates are being fought over anthropogenic impact. Yet the general public would appear to ‘feel’ the change, without any need for measurement and contesting of findings. This ‘feeling’ is manifest in the Earth Hour. It is this collective act which I would argue is borne out of feelings for the earth. Feelings which tell people instinctively a change in behaviour is needed. This article therefore examines the semiotics of a jurisprudence which is premised on feelings. Feelings towards the Djang—a primordial force expounded by the Australian Aboriginal Senior Law Man Bill Neidjie of the world heritage listed—Kakadu National Park, Australia. He foresaw the climatic shifts and wanted to assist European Australians—Balanda to help avert the possible consequence.  相似文献   
950.
Individuals with limited resources are often presumed to be vulnerable in research. Concerns include the possibility of impaired decision making, susceptibility to undue inducement, and risk of exploitation. Although each of these concerns should be considered by investigators and IRBs, none justifies categorical exclusion of individuals with limited resources.  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