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   273篇
  免费   10篇
各国政治   13篇
工人农民   26篇
世界政治   31篇
外交国际关系   15篇
法律   125篇
政治理论   66篇
综合类   7篇
  2022年   2篇
  2021年   4篇
  2020年   4篇
  2019年   2篇
  2018年   7篇
  2017年   6篇
  2016年   6篇
  2015年   6篇
  2014年   7篇
  2013年   42篇
  2012年   3篇
  2011年   12篇
  2010年   10篇
  2009年   9篇
  2008年   11篇
  2007年   3篇
  2006年   8篇
  2005年   6篇
  2004年   9篇
  2003年   5篇
  2002年   7篇
  2001年   5篇
  2000年   4篇
  1999年   7篇
  1998年   7篇
  1997年   5篇
  1996年   5篇
  1995年   4篇
  1994年   4篇
  1993年   5篇
  1992年   6篇
  1991年   6篇
  1990年   2篇
  1989年   7篇
  1988年   4篇
  1987年   2篇
  1986年   4篇
  1984年   2篇
  1983年   5篇
  1982年   6篇
  1981年   3篇
  1980年   3篇
  1979年   3篇
  1978年   2篇
  1976年   2篇
  1974年   2篇
  1973年   2篇
  1971年   2篇
  1970年   1篇
  1969年   1篇
排序方式: 共有283条查询结果,搜索用时 15 毫秒
51.
Resilience research requires attention to the factors that promote youth development and success. Youth success is associated with youth having adults in their lives who care about them and set high expectations for them to succeed; oftentimes these adults are presumed to be the children's parents. Because youth spend a great deal of time in schools, school settings may be a place where youth resilience can be fostered. In 2004, 6th-grade youth in 5 schools in Maricopa County, Arizona, were surveyed to determine if they had factors to promote their resilience. In these schools, teachers had been trained by an agency called Kids at Hope. Kids at Hope presupposes that “all children are capable of success, no exceptions” and offers an alternative paradigm to kids at risk. The results of this research show that youth who believe that they are successful and who are optimistic about themselves and their schools are more likely to find their schools to be places where they can be successful and optimistic.  相似文献   
52.
Existing theories of contesting elections typically treat all potential challengers as identical while under-playing the importance of political parties and primary contests. We offer a theory addressing these issues based on how the various actors in the process define and evaluate the probability of winning an election and the value of the office being contested. We test our theory by estimating a model predicting which of three responses a party that loses a legislative race makes in the next cycle: nominating the same candidate, nominating a new candidate, or nominating no one. We find substantial empirical support for our theory.  相似文献   
53.
This essay examines historical and contemporary connections between Buddhist and medical traditions through a study of the Accomplishing Medicine (sman sgrub) practice and the Yuthok Heart Essence (G.yu thog snying thig) anthology. Accomplishing Medicine is an esoteric Buddhist yogic and contemplative exercise focused on several levels of “alchemical” transformation. The article will trace the acquisition of this practice from India by Tibetan medical figures and its assimilation into medical practice. It will propose that this alchemical practice forms the central nexus of connection between Tibetan medicine and the Buddhist Nyingma tradition, and that this little-studied link is not a marginal feature of Tibetan medicine but rather one that has had a significant shaping factor on each tradition throughout history.  相似文献   
54.
An ecological model is used to explore the moderating effects of community-level variables on the relation between childhood sexual, physical, and emotional abuse and adult intimate partner violence (IPV) within a sample of 98 African American women from low incomes. Results from hierarchical, binary logistics regressions analyses show that community-level variables (perceived neighborhood disorder and community cohesion) moderated the relation between childhood emotional abuse and adult physical IPV. Findings support the use of an ecological approach in examining the phenomena of revictimization. Clinical implications from a community and ecological perspective are discussed.  相似文献   
55.
Two groups were selected from the remainder of hair samples that had been tested for drugs at TrichoTech for medico-legal cases: samples that tested negative (drug-negative group; N=42, age 33.4+/-7.2 years) and samples that tested positive for drugs (drug-positive group; N=57, age 32.5+/-8.8 years). A rapid, simple method to detect the ethanol metabolite, ethyl glucuronide (EtG) in hair has been developed. The hair samples were sectioned, and then submitted to overnight sonication in water. Samples then underwent SPE using anion exchange cartridges, followed by derivatisation with N,O-bis[trimethylsilyl]trifluoroacetamide (BSTFA), before confirmation by GC-MS/MS. The assay produced excellent linearity and sensitivity over the calibration range 0.02-1.0 ng/mg, assuming a 10 mg hair sample. The mean age of the two groups was not statistically different (p=0.575, Student t-test), indicating a homogeneous group. Twelve of the 57 (21.0%) hair samples of the drug-positive group tested positive for EtG, and 17 of the 42 (40.5%) hair samples of the drug-negative group tested positive for EtG. The mean concentration of EtG in the drug-positive group was 0.011 ng/mg compared to 0.107 ng/mg in the drug-negative group. When the full results of this study were subjected to statistical analysis it was shown that EtG levels in the drug-negative group were statistically higher than those found in the drug-positive group (p<0.05). This preliminary finding may be of use in the study of addiction and adds valuable data to previous studies regarding the use of EtG as a valuable marker for alcohol levels in hair.  相似文献   
56.
This paper summarizes the broad foundations of the changing nature of parenthood by examining trends in coresidence with children under age 15. Our study uses data from the Integrated Public Use Microdata Samples (IPUMS) to provide a portrait of demographic parenthood in the US over the nineteenth and twentieth centuries. In describing changes in parenthood over the past 110 years, we distinguish between those living with own children and those living with other children. We focus in particular on changes in gender patterns of coresidential parenthood and changes in the likelihood that divorced men and women live with children. We also examine the impact of the baby boom on parenting. Our findings support a recasting of ongoing discussions of the parental roles of American men and women by shifting the historical demographic focus from biological transitions to the social aspects of parenting.  相似文献   
57.
The purpose of this evaluation was to determine if client characteristics affected selected program outcomes. The sample consisted of 475 clients admitted into a for-profit, private alternative probation and counseling program between November 1, 1998 and February 28, 1999. Multiple regression analyses identified race, previous alcohol and drug treatment, and employment status as significant predictor variables of client compliance. Being able to target client characteristics that are associated with successful program outcomes can help programs fulfill their goals of diversion and costeffectiveness, thus making the most effective use of scarce resources.  相似文献   
58.
Journal of Youth and Adolescence - Cognitive interpretations of stressful events impact their implications for physiological stress processes. However, whether such interpretations are related to...  相似文献   
59.
60.
The debate over scientific issues has made a difficult transition from the scientific community to the public-polity process. The traditional view of scientists undertaking “pure” science in their laboratories did not envision government intervention into scientific and technological discovery through administrative agency regulation of risks associated with the results of such research. Yet examples of government regulation of technological risks abound as the nation grapples with nuclear power issues, new-drug testing, and environmental issues, to name a few. This paper considers whether the presently constituted regulatory apparatus is capable of responding to dramatic advances in technology in a timely and effective way. Concluding that it is not, the paper examines the circumscribing characteristics of the regulatory process. Then it discusses alternate approaches for regulating the risks posed by science and technology without doing too much violence to due process or the notion of public participation in the regulatory function.  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