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   1628篇
  免费   62篇
各国政治   107篇
工人农民   184篇
世界政治   125篇
外交国际关系   65篇
法律   832篇
中国政治   21篇
政治理论   326篇
综合类   30篇
  2023年   19篇
  2022年   9篇
  2021年   15篇
  2020年   40篇
  2019年   40篇
  2018年   72篇
  2017年   64篇
  2016年   61篇
  2015年   54篇
  2014年   53篇
  2013年   209篇
  2012年   42篇
  2011年   60篇
  2010年   40篇
  2009年   55篇
  2008年   55篇
  2007年   70篇
  2006年   61篇
  2005年   64篇
  2004年   56篇
  2003年   37篇
  2002年   48篇
  2001年   30篇
  2000年   34篇
  1999年   23篇
  1998年   19篇
  1997年   17篇
  1996年   22篇
  1995年   14篇
  1994年   21篇
  1993年   16篇
  1992年   15篇
  1991年   29篇
  1990年   21篇
  1989年   18篇
  1988年   9篇
  1987年   9篇
  1986年   18篇
  1985年   22篇
  1984年   10篇
  1983年   20篇
  1982年   16篇
  1981年   9篇
  1980年   9篇
  1979年   6篇
  1978年   12篇
  1977年   11篇
  1975年   6篇
  1974年   6篇
  1969年   6篇
排序方式: 共有1690条查询结果,搜索用时 62 毫秒
981.
On May 2, 2006, a divided panel of the U.S. Court of Appeals for the District of Columbia, in a startling opinion, Abigail Alliance for Better Access to Developmental Drugs v. Eschenbach, held that terminally ill patients who have exhausted all other available options have a constitutional right to experimental treatment that FDA has not yet approved. Although ultimately overturned by the full court, Abigail Alliance generated considerable interest from various constituencies. Meanwhile, FDA proposed similar regulatory amendments, as have lawmakers on both sides of the aisle in Congress. But proponents of expanded access fail to consider public health and consumer safety concerns. In particular, allowing patients to try unproven treatments, outside of controlled clinical trials risks both the study's outcome and the health of patients who might benefit from the deliberate, careful process of new drug approval as it currently operates under FDA's auspices.  相似文献   
982.
Visible abnormalities on the thyroid cartilage may be indicative of perimortem trauma including fractures or sharp force trauma. During autopsy, the thyroid cartilage must be freed of surrounding soft tissue before these abnormalities can be clearly observed. Several processing methods were first experimentally tested on pig ears to narrow down which might work best to process human thyroid cartilage. Several methods in the categories of hot water maceration, chemical/enzyme maceration, and dermestid beetles were then tested on a sample of 37 human thyroid cartilages. An adapted 22-point scoring system was used to score the efficacy of each processing method. Chemical maceration using bleach was found to be the best method for removing surrounding tissue from thyroid cartilage, with Arm & HammerTM powdered laundry detergent as a close second. These methods are inexpensive, quick, and easy to implement, making them a simple addition to busy medical examiner’s offices or forensic anthropology laboratories.  相似文献   
983.
Families, litigants, lawyers, advisors embroiled in cases of complex divorce with child contact issues, manage many stressors at once. Participants involved with these types of cases are often exhausted and burned‐out from the long‐term battles of prolonged litigation. The inability to problem‐solve or even communicate effectively reflects the chaos and traumatic stress of the experience and can be seen as a hallmark of this population. When people are consistently stressed, there is a breakdown of communication skills that can create an immunity to receiving help from any direction. Often all parties involved appear to be both hyper‐alert to potential threat, and hyper‐reactive to one another: no one feels safe. Stephen Porges' Polyvagal Theory is premised on the idea that neuroception plays a key role in the nervous system's ability to assess danger in the environment. Neuroception is a neurophysiological response that does not involve cognitive processing. When cognitive processing is not involved, the result may lead to misinterpretation of, and an inability to accurately assess situations: executive functioning including rational thinking and communication skills are lost to physiological response. Rather than evaluating families and individuals involved in the aforementioned complex divorce cases through the lens of pathology, Polyvagal Theory explains their behavior as an adaptive stress reaction. Utilizing Polyvagal Theory offers a promising path to treatment with these families and diminishing the poor communication and the heightened emotion, assisting practitioners in understanding the impact of neurobiological response in managing stress and trauma. Applying Polyvagal Theory to court involved populations can help both litigants and practitioners recognize the role of the autonomic nervous system, providing the opportunity to understand, to self‐regulate, and to improve communication and decision making.  相似文献   
984.
Journal of Youth and Adolescence - Social status is a salient feature of the classroom peer ecology in early adolescence, yet research has not examined how it plays out within the domains of math...  相似文献   
985.
Scholars have long identified state repression as playing a key role in the onset of insurgency. Violence by security forces increases anger against the state and assists with rebel recruitment. Yet scholars have also recognised that repression does not always lead to rebellion: in some cases it successfully quashes movements before they have begun. This study advances an argument for when and why repression leads to insurgency and sometimes does not. We contend that violence by state security forces can fail to trigger rebellion if local elites within the repressed community are simultaneously co-opted with political and economic opportunities. When elites are satisfied with local autonomy and patronage they deprive the dissident movement of local leadership and coordination. When the state uses repression against a community and at the same time abandons this mutually beneficial relationship, the insurgency has both the leadership and grassroots support it requires. We illustrate our argument by examining three cases of state violence in Asia. In two of our cases, Pakistan’s Federally Administered Tribal Areas (FATA) and Southern Thailand, repression led directly to insurgency. In the third, Papua in Indonesia, ongoing co-optation of local elites has left the movement factionalised and weak.  相似文献   
986.
Although the drivers of renewable electricity (RE) are well-established among Western high-income countries, little is known about the factors that encourage RE development elsewhere. This paper analyzes an unprecedented, original dataset of 149 countries from 1990 to 2010 to compare the policy instruments and other factors that influence RE adoption across low-, middle-, and high-income countries. We find the factors driving RE development vary both across income group and between hydroelectric and non-hydro generation. Most notably for environmental concerns, non-hydroelectric RE generation is driven by feed-in-tariffs and renewable portfolio standards in high-income countries, feed-in tariffs alone in middle-income countries, and by subsidies in low-income countries. Non-policy drivers of RE also vary by country income level.  相似文献   
987.
This article addresses the role of demographic factors in contributing to the emergence of democracy. It maintains that, other things being equal, progress in the demographic transition promotes democratization. The argument is developed with reference to the effects of interrelated changes in mortality, natural increase (i.e. population growth), fertility, and population age structure. Suggestions are also made with respect to how demographic and democratic trends should be gauged. An analysis of data for the period 1970–2005 for 77 countries that were initially non-democratic provides substantial support for the argument. Some implications are discussed, as are future trends in democratization from a demographer’s perspective.  相似文献   
988.
Civil servants are perceived to possess altruistic motive known as Civil Service Motivation (PSM) which promotes public interest as confirmed in some developed countries. Using the Ejisu-Juabeng Municipality as a case study, this article assesses the existence of PSM in the Ghanaian public sector and finds that PSM exists in the public service but its existence does not ensure maximum output. The workers professed having motives such as sense of social justice, compassion, commitment to public interest, self-sacrifice, and sense of civic duty but indicated their unwillingness to commit their future to the public sector because of poor working conditions.  相似文献   
989.
Research on traumatic events experienced among Mexicans deported from the United States is scant. Using clinical interviews, this study assessed the frequency of traumatic events and symptoms of post-traumatic stress disorder (PTSD) among 47 Mexican deportees in a U.S.-Mexico border community. The majority of participants (98%) reported having experienced one or more traumatic events (M = 9, SD = 5) and nearly half met DSM-IV-TR criteria for PTSD. Meeting criteria for PTSD was associated with a higher number of traumatic events. Results suggest that prevention, intervention, and policy efforts are necessary to improve the well-being of this understudied immigrant subgroup.  相似文献   
990.
Research indicates that sexual minority youth are disproportionately criminalized in the U.S. and subjected to abusive treatment while in correctional facilities. However, the scope and extent of disparities based on sexual orientation remains largely overlooked in the juvenile justice literature. This study, based on a nationally representative federal agency survey conducted in 2012 (N?=?8785; 9.9% girls), reveals that 39.4% of girls and 3.2% of boys in juvenile correctional facilities identified as lesbian, gay, or bisexual. These youth, particularly gay and bisexual boys, report higher rates of sexual victimization compared to their heterosexual peers. Sexual minority youth, defined as both lesbian, gay, and bisexual identified youth as well as youth who identified as straight and reported some same-sex attraction, were also 2–3 times more likely than heterosexual youth to report prior episodes of detention lasting a year or more. Implications for future research and public policy 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