全文获取类型
收费全文 | 1105篇 |
免费 | 51篇 |
专业分类
各国政治 | 59篇 |
工人农民 | 70篇 |
世界政治 | 85篇 |
外交国际关系 | 93篇 |
法律 | 584篇 |
中国共产党 | 1篇 |
中国政治 | 18篇 |
政治理论 | 245篇 |
综合类 | 1篇 |
出版年
2023年 | 11篇 |
2022年 | 15篇 |
2021年 | 39篇 |
2020年 | 41篇 |
2019年 | 50篇 |
2018年 | 54篇 |
2017年 | 54篇 |
2016年 | 55篇 |
2015年 | 39篇 |
2014年 | 52篇 |
2013年 | 186篇 |
2012年 | 52篇 |
2011年 | 46篇 |
2010年 | 25篇 |
2009年 | 39篇 |
2008年 | 35篇 |
2007年 | 51篇 |
2006年 | 33篇 |
2005年 | 17篇 |
2004年 | 28篇 |
2003年 | 21篇 |
2002年 | 23篇 |
2001年 | 18篇 |
2000年 | 19篇 |
1999年 | 10篇 |
1998年 | 9篇 |
1997年 | 10篇 |
1996年 | 14篇 |
1995年 | 12篇 |
1994年 | 8篇 |
1993年 | 9篇 |
1992年 | 12篇 |
1991年 | 8篇 |
1990年 | 8篇 |
1989年 | 6篇 |
1988年 | 7篇 |
1987年 | 3篇 |
1985年 | 2篇 |
1984年 | 8篇 |
1982年 | 3篇 |
1981年 | 2篇 |
1979年 | 2篇 |
1978年 | 3篇 |
1977年 | 4篇 |
1974年 | 1篇 |
1971年 | 1篇 |
1970年 | 1篇 |
1969年 | 3篇 |
1967年 | 1篇 |
1966年 | 1篇 |
排序方式: 共有1156条查询结果,搜索用时 15 毫秒
181.
Laura H.C.G. Compier-de Block Lenneke R.A. Alink Mariëlle Linting Lisa J.M. van den Berg Bernet M. Elzinga Alexandra Voorthuis Marieke S. Tollenaar Marian J. Bakermans-Kranenburg 《Journal of family violence》2017,32(2):207-217
Parent-child agreement on child maltreatment was examined in a multigenerational study. Questionnaires on perpetrated and experienced child maltreatment were completed by 138 parent-child pairs. Multi-level analyses were conducted to explore whether parents and children agreed about levels of parent-to-child maltreatment (convergence), and to examine whether parents and children reported equal levels of child maltreatment (absolute differences). Direct and moderating effects of age and gender were examined as potential factors explaining differences between parent and child report. The associations between parent- and child-reported maltreatment were significant for all subtypes, but the strength of the associations was low to moderate. Moreover, children reported more parent-to-child neglect than parents did. Older participants reported more experienced maltreatment than younger participants, without evidence for differences in actual exposure. These findings support the value of multi-informant assessment of child maltreatment to improve accuracy, but also reveal the divergent perspectives of parents and children on child maltreatment. 相似文献
182.
183.
184.
Thijs Kanters Ruud H. J. Hornsveld Kevin L. Nunes Almar J. Zwets Peter Muris Hjalmar J. C. van Marle 《The journal of forensic psychiatry & psychology》2017,28(3):368-387
Although the Sexual Violence Risk-20 (SVR-20) is widely used, its psychometric properties have only been investigated in a limited number of studies. This study explored the factor structure of the SVR-20 and examined its psychometric properties. Confirmatory factor analysis (CFA) was used to examine the fit of the original three-domain model of the SVR-20. The CFA showed that the original structure was not satisfactory. Exploratory principal components analysis (PCA) was conducted in search of a more optimal factor structure. Psychometric properties (i.e., internal consistency, predictive value, and convergent validity) of both the original domains and alternative factors were investigated. The PCA and subsequent CFAs pointed in the direction of an alternative, more optimal three-factor solution. The three alternative factors were labeled as Antisociality, Sexual deviance, and Problematic thinking and produced better internal consistency coefficients than the original domains. However, the validity of the SVR-20 was modest and no evidence was found indicating that the alternative factors were better in this regard as compared to the original domains. Despite the overall superiority of actuarial measures in predicting recidivism, the structured professional judgment of the SVR-20 proved to be more predictive of sexual, violent, and general recidivism than its actuarial scoring method. 相似文献
185.
Schilthuizen M Scholte C van Wijk RE Dommershuijzen J van der Horst D Zu Schlochtern MM Lievers R Groenenberg DS 《Forensic science international》2011,207(1-3):91-95
Although many cases of fatal hydrogen sulfide poisoning have been reported, in most of these cases, it resulted from the accidental inhalation of hydrogen sulfide gas. In recent years, we experienced 17 autopsy cases of fatal hydrogen sulfide poisoning due to the inhalation of intentionally generated hydrogen sulfide gas. In this study, the concentrations of sulfide and thiosulfate in blood, urine, cerebrospinal fluid and pleural effusion were examined using GC/MS. The sulfide concentrations were blood: 0.11-31.84, urine: 0.01-1.28, cerebrospinal fluid: 0.02-1.59 and pleural effusion: 2.00-8.59 (μg/ml), while the thiosulfate concentrations were blood: 0-0.648, urine: 0-2.669, cerebrospinal fluid: 0.004-0.314 and pleural effusion: 0.019-0.140 (μmol/ml). In previous reports, the blood concentration of thiosulfate was said to be higher than that of sulfide in hydrogen sulfide poisoning cases, although the latter was higher than the former in 8 of the 14 cases examined in this study. These results are believed to be strongly influenced by the atmospheric concentration of hydrogen sulfide the victims were exposed to and the time interval between exposure and death. 相似文献
186.
Meghan E. Hollis-Peel Danielle M. Reynald Maud van Bavel Henk Elffers Brandon C. Welsh 《Crime, Law and Social Change》2011,56(1):53-70
Cohen and Felson??s (Cohen and Felson American Sociological Review 44(4):588?C608, 1979) routine activity theory posits that for a crime to occur three necessary elements must converge in time and space: motivated offenders, suitable targets, and the absence of capable guardianship. Capable guardians can serve as a key actor in the crime event model; one who can disrupt, either directly or indirectly, the interaction between a motivated offender and a suitable target. This article critically reviews the literature on guardianship for crime prevention. Our specific focus is two-fold: (1) to review the way guardianship has been operationalized and measured, and (2) to review experimental and quasi-experimental evaluations and field tests of guardianship. Research on routine activities has had an uneven focus resulting in the neglect of the guardianship component (Reynald Crime Prevention and Community Safety 11(1):1?C20, 2009; Sampson et al. Security Journal 23(1):37?C51, 2010; Tewksbury and Mustaine Criminal Justice and Behavior 30(3):302?C327, 2003; Wilcox et al. Criminology 45(4):771?C803 2007). Evaluations of guardianship-related interventions demonstrate support for the theoretical construct; however, high-quality field tests of guardianship are wholly lacking. Implications for theory and research are discussed. 相似文献
187.
The current study investigated whether differences in loneliness scores between individuals with a distressed personality
type (type D personality) and subjects without such a personality varied by domestic violence victimization. Participants
(N = 625) were recruited by random sampling from the Municipal Basic Administration of the Dutch city of ‘s-Hertogenbosch and
were invited to fill out a set of questionnaires on health status. For this study, only ratings for domestic violence victimization,
type D personality, feelings of loneliness, and demographics were used. Statistical analyses yielded main effects on loneliness
for both type D personality and history of domestic violence victimization. Above and beyond these main effects, their interaction
was significantly associated with loneliness as well. However, this result seemed to apply to emotional loneliness in particular.
Findings were discussed in light of previous research and study limitations. 相似文献
188.
Catherine E. de Vries Wouter van der Brug Marcel H. van Egmond Cees van der Eijk 《Electoral Studies》2011,30(1):16-28
Increasing politicization in EU member states about European issues can be expected to strengthen the impact of attitudes towards Europe on vote choice in European Parliament (EP) elections. At the same time this impact is likely to vary between voters and contexts as a function of political information. This study explores the role of political information in explaining individual and contextual heterogeneity in the degree of EU issue voting. Using a two-step hierarchical estimation procedure to explore both individual and contextual variation, we show that while EU issue voting in the 2009 EP elections is only slightly more pronounced among the politically sophisticated, it is clearly more extensive in contexts that provide higher levels of political information on European matters. 相似文献
189.
The objective of the paper is to examine how firms have dealt with the trade‐off between flexibility and uncertainty that is characteristic for the decision‐making of firms in coping with self‐regulatory initiatives in general and the comply‐or‐explain principle in corporate governance in particular. Using unique data for 126 listed Dutch firms, we find that firms respond to this self‐regulatory initiative by largely complying with the code recommendation, possibly out of fear that the firm's reputation may be damaged. Furthermore, we find evidence suggesting that firms confine themselves to adopting a specific set of code recommendations and use similar arguments to explain non‐compliance. Our findings indicate uniformity in adopting the standard of good governance which is not in line with the logic of corporate governance codes and casts doubt on the effectiveness of this form of soft law. Overall, the paper's findings indicate that more restrictive (regulatory) instruments may be necessary to make firms conform to the spirit of codes. 相似文献
190.
Wilkinson DA Hulst AG de Reuver LP van Krimpen SH van Baar BM 《Journal of forensic sciences》2007,52(6):1272-1283
Forensic laboratories do not have the infrastructure to process or store contaminated DNA samples that have been recovered from a crime scene contaminated with chemical or biological warfare agents. Previous research has shown that DNA profiles can be recovered from blood exposed to several chemical warfare agents after the agent has been removed. The fate of four toxic agents, sulfur mustard, sodium 2-fluoroacetate, sarin, and diazinon, in a lysis buffer used in Promega DNA IQ extraction protocol was studied to determine if extraction would render the samples safe. Two independent analytical methods were used per agent, selected from GC-MS, 1H NMR, 19F NMR, (31)P NMR, or LC-ES MS. The methods were validated before use. Determinations were carried out in a semi-quantitative way, by direct comparison to standards. Agent levels in the elution buffer were found to be below the detectable limits for mustard, sarin, sodium 2-fluoroacetate or low (<0.02 mg/mL) for diazinon. Therefore, once extracted these DNA samples could be safely processed in a forensic laboratory. 相似文献