全文获取类型
收费全文 | 1587篇 |
免费 | 64篇 |
专业分类
各国政治 | 96篇 |
工人农民 | 63篇 |
世界政治 | 124篇 |
外交国际关系 | 105篇 |
法律 | 867篇 |
中国共产党 | 2篇 |
中国政治 | 18篇 |
政治理论 | 331篇 |
综合类 | 45篇 |
出版年
2023年 | 12篇 |
2022年 | 13篇 |
2021年 | 17篇 |
2020年 | 42篇 |
2019年 | 47篇 |
2018年 | 63篇 |
2017年 | 72篇 |
2016年 | 67篇 |
2015年 | 44篇 |
2014年 | 57篇 |
2013年 | 262篇 |
2012年 | 60篇 |
2011年 | 67篇 |
2010年 | 76篇 |
2009年 | 62篇 |
2008年 | 74篇 |
2007年 | 58篇 |
2006年 | 55篇 |
2005年 | 65篇 |
2004年 | 54篇 |
2003年 | 39篇 |
2002年 | 51篇 |
2001年 | 37篇 |
2000年 | 33篇 |
1999年 | 19篇 |
1998年 | 27篇 |
1997年 | 11篇 |
1996年 | 15篇 |
1995年 | 14篇 |
1994年 | 10篇 |
1993年 | 13篇 |
1992年 | 2篇 |
1991年 | 10篇 |
1990年 | 12篇 |
1989年 | 13篇 |
1988年 | 10篇 |
1987年 | 6篇 |
1986年 | 10篇 |
1985年 | 4篇 |
1984年 | 5篇 |
1983年 | 8篇 |
1982年 | 6篇 |
1981年 | 4篇 |
1980年 | 3篇 |
1978年 | 2篇 |
1976年 | 3篇 |
1974年 | 5篇 |
1972年 | 2篇 |
1967年 | 3篇 |
1963年 | 1篇 |
排序方式: 共有1651条查询结果,搜索用时 0 毫秒
61.
Hanlon Thomas E. Bateman Richard W. Simon Betsy D. O'Grady Kevin E. Carswell Steven B. 《Journal of youth and adolescence》2002,31(6):459-471
This paper presents the results of an evaluation of an early intervention, risk-reduction strategy versus a standard intervention approach in the treatment of inner-city youth at high risk of adopting a deviant lifestyle. It examines baseline and 1-year follow-up information provided by 408 youth admitted to 2 community-based Baltimore City Youth Bureaus offering counseling services for neighborhood youth referred for delinquent and other problematic behavior. In the study, one of these bureaus served as the experimental intervention clinic and the other as the control, or standard intervention, clinic. Outcome measures involved substance abuse; sexual activity; contact with juvenile authorities; and delinquent activity, including violence-related activity. Regression analyses of outcome measures revealed significant differential results for delinquent activity, which favored the experimental intervention. Relationships between risk/protective factors and outcome are discussed. 相似文献
62.
Assessment of the role of air bag deployment in injury causation in a crash of any severity requires analysis of occupant, vehicle, and impact data. The potential injurious role of an air bag is independent of crash severity and is more obvious in minor collisions, particularly those involving "out-of-position" occupants. Factors such as occupant height and other constitutional and medical factors, intoxication, age, type, and proper use of other restraint systems, pre-impact braking and multiple impacts can contribute to an occupant being "out-of-position." Two injury mechanisms are described in out-of-position occupants: "punch-out" when the individual covers the air bag module before deployment and "membrane-force" when the occupant contacts a partly deployed air bag. Each mechanism is associated with injury patterns. In adults, "punch-out" can cause thoraco-abdominal trauma and "membrane-force" loading can lead to craniocervical injury. This can also occur in short-statured occupants including children subjected to both types of loading. In more severe collisions, other factors, e.g., intrusion, steering column and seatbelt loading and other occupant compartment contacts, can contribute to trauma. 相似文献
63.
64.
Biggam FH Power KG 《International journal of offender therapy and comparative criminology》2002,46(6):678-698
Recent research has indicated that vulnerable incarcerated young offenders--such as those at risk of suicidal behaviour, those on formal protection due to their inability to assimilate into mainstream, and those who are bullied but remain in normal circulation--display impoverished problem-solving abilities. Furthermore, deficits in their problem-solving skills are significantly correlated with levels of anxiety, depression, and hopelessness. This study evaluated the effectiveness of a time-limited, group-based problem-solving training intervention compared with a no-treatment control for vulnerable, incarcerated young offenders. A total of 46 young offenders were equally allocated to intervention or control groups. Intervention participants experienced significant reductions in their levels of anxiety, depression, and hopelessness and improvement in their self-assessed social problem-solving abilities. Gains in aspects of self-assessed problem-solving ability and mental health for the intervention group continued to be evident at 3-month follow-up. Methodological concerns in this study and directions for future research are discussed. 相似文献
65.
Proeve M Howells K 《International journal of offender therapy and comparative criminology》2002,46(6):657-667
In this article, the authors build on previous discussions of the possible role of shame and guilt in sexual offending. They review the general psychological literature on shame and guilt and conclude that the distinction between internal and external shame is an important one in considering sexual offenders. The effects of shame and guilt on victim empathy and relapse are discussed, and it is proposed that the phenomena of shame and guilt have implications for treatment beyond those identified in previous studies. Shame is a salient feature in the initial presentation of many sexual offenders against children. Furthermore, aspects of the treatment of sexual offenders can be characterized as a shift from shame toward guilt. Implications of shame and guilt for treatment of sexual offenders are described. 相似文献
66.
Samyn N De Boeck G Wood M Lamers CT De Waard D Brookhuis KA Verstraete AG Riedel WJ 《Forensic science international》2002,128(1-2):90-97
In a double-blind placebo controlled study on psychomotor skills important for car driving (Study 1), a 75 mg dose of +/- 3,4-methylenedioxymethamphetamine (MDMA) was administered orally to 12 healthy volunteers who were known to be recreational MDMA-users. Toxicokinetic data were gathered by analysis of blood, urine, oral fluid and sweat wipes collected during the first 5h after administration. Resultant plasma concentrations varied from 21 to 295 ng/ml, with an average peak concentration of 178 ng/ml observed between 2 and 4h after administration. MDA concentrations never exceeded 20 ng/ml. Corresponding MDMA concentrations in oral fluid, as measured with a specific LC-MS/MS method (which required only 50 microl of oral fluid), generally exceeded those in plasma and peaked at an average concentration of 1215 ng/ml. A substantial intra- and inter-subject variability was observed with this matrix, and values ranged from 50 to 6982 ng/ml MDMA. Somewhat surprisingly, even 4-5h after ingestion, the MDMA levels in sweat only averaged 25 ng/wipe. In addition to this controlled study, data were collected from 19 MDMA-users who participated in a driving simulator study (Study 2), comparing sober non-drug conditions with MDMA-only and multiple drug use conditions. In this particular study, urine samples were used for general drug screening and oral fluid was collected as an alternative to blood sampling. Analysis of oral fluid samples by LC-MS/MS revealed an average MDMA/MDEA concentration of 1121 ng/ml in the MDMA-only condition, with large inter-subject variability. This was also the case in the multiple drug condition, where generally, significantly higher concentrations of MDMA, MDEA and/or amphetamine were detected in the oral fluid samples. Urine screening revealed the presence of combinations such as MDMA, MDEA, amph, cannabis, cocaine, LSD and psilocine in the multiple-drug condition. 相似文献
67.
Millions of Ugandan children have become orphaned over the last two decades, the primary cause being the increasing HIV/AIDS
epidemic. This phenomenon has prompted the government to institute numerous legal reforms. These internal reforms, implemented
in a legal environment based on English common law and increasingly, international standards, greatly influence the legal
inheritance rights of Ugandan orphans and their chances for prosperity. In many regions, however, the traditional local mores
trump both national and global standards, meaning that while Ugandan parents may own appreciable property upon death, their
children rarely receive it, but rather fall victim to “property grabbing” or mismanagement by relatives. The key impediments
to solving this problem and to Uganda’s adoption of a more egalitarian system of inheritance include the ineffectiveness of
local councils, the inadequate enforcement of the Children Stature, and the heavily centralized and cumbersome structure of
the national government. Therefore, significant reforms are needed, including the pronouncement of a national policy regarding
orphans, the reduction of national reliance on NGOs, and the restoration of a national legislative effort to codify orphans’
property rights. 相似文献
68.
There is little professional consensusregarding the effect of economic conditionson House Elections. We argue that recentwork still uses the paradigm of Party toorganize their data and tests. Given thatrecent developments in the theory ofcongress emphasize the paradigm ofIncumbency, we investigate the empiricalrelevance of that competing paradigm. Weshow that (1) Incumbency matters in a purePresidential Party Model of HouseElections, (2) Presidential Party mattersin a pure Incumbency Model, (3) Once bothParty and Incumbency are accounted for,economic conditions exert a highlysignificant and temporally stable influenceon House elections, (4) Return Rates aremore affected by economic fluctuations thanare Vote Shares, and (5) Not allPresidential Party incumbents face the samedegree of electoral accountability foreconomic fluctuations. 相似文献
69.
70.