全文获取类型
收费全文 | 1316篇 |
免费 | 5篇 |
专业分类
各国政治 | 19篇 |
工人农民 | 48篇 |
世界政治 | 33篇 |
外交国际关系 | 30篇 |
法律 | 338篇 |
中国共产党 | 34篇 |
中国政治 | 250篇 |
政治理论 | 104篇 |
综合类 | 465篇 |
出版年
2024年 | 4篇 |
2023年 | 8篇 |
2022年 | 12篇 |
2021年 | 7篇 |
2020年 | 33篇 |
2019年 | 13篇 |
2018年 | 19篇 |
2017年 | 28篇 |
2016年 | 23篇 |
2015年 | 20篇 |
2014年 | 72篇 |
2013年 | 70篇 |
2012年 | 96篇 |
2011年 | 107篇 |
2010年 | 67篇 |
2009年 | 78篇 |
2008年 | 79篇 |
2007年 | 110篇 |
2006年 | 93篇 |
2005年 | 79篇 |
2004年 | 84篇 |
2003年 | 70篇 |
2002年 | 63篇 |
2001年 | 37篇 |
2000年 | 15篇 |
1999年 | 17篇 |
1998年 | 2篇 |
1997年 | 2篇 |
1996年 | 1篇 |
1995年 | 3篇 |
1994年 | 1篇 |
1993年 | 1篇 |
1992年 | 1篇 |
1991年 | 1篇 |
1990年 | 2篇 |
1989年 | 1篇 |
1987年 | 1篇 |
1984年 | 1篇 |
排序方式: 共有1321条查询结果,搜索用时 0 毫秒
21.
Unfortunately, the nature‐versus‐nurture debate continues in criminology. Over the past 5 years, the number of heritability studies in criminology has surged. These studies invariably report sizeable heritability estimates (~50 percent) and minimal effects of the so‐called shared environment for crime and related outcomes. Reports of such high heritabilities for such complex social behaviors are surprising, and findings indicating negligible shared environmental influences (usually interpreted to include parenting and community factors) seem implausible given extensive criminological research demonstrating their significance. Importantly, however, the models on which these estimates are based have fatal flaws for complex social behaviors such as crime. Moreover, the goal of heritability studies—partitioning the effects of nature and nurture—is misguided given the bidirectional, interactional relationship among genes, cells, organisms, and environments. This study provides a critique of heritability study methods and assumptions to illuminate the dubious foundations of heritability estimates and questions the rationale and utility of partitioning genetic and environmental effects. After critiquing the major models, we call for an end to heritability studies. We then present what we perceive to be a more useful biosocial research agenda that is consonant with and informed by recent advances in our understanding of gene function and developmental plasticity. 相似文献
22.
This article focuses on individuals suspected of hate crimes with xenophobic, Islamophobic, and homophobic motives. The objective is to fill a gap in the knowledge left by existing research, which has primarily focused on victims and definitional problems. This article's genuine contribution to new research is the comparative perspective and the study of co-offending and specialization in offences for persons suspected for hate crimes. To find persons suspected for hate crimes, register data relating to hate-crime-motivated assault and unlawful threats/molestation offences from 2006 have been used. The study is based on a total of 1,910 offence reports together with information from the Registers of Suspected and Convicted Offenders for 558 persons suspected for hate crimes. Xenophobic hate crimes are over-represented in the material by comparison with homophobic and Islamophobic hate crimes. In the reports that have information about the relation between victim and perpetrators, it is more common for the perpetrators to be known than unknown to the victims. In cases where a suspected person has been identified, males are in a clear majority. Those suspected of homophobic hate crimes have the lowest mean age. Only a small number of offence reports include information on suspected co-offenders. Fifty-five per cent of the suspected people have prior registered convictions. It is very uncommon for them to be specialized in violent offences or unlawful threats/molestation, however. It is not possible to generalize the results to perpetrators of hate crimes, because 70% of the offence reports did not have information of suspected persons. 相似文献
23.
Diana M. Wright Ph.D. Maureen J. Bradley Ph.D. Andria Hobbs Mehltretter M.S. 《Journal of forensic sciences》2013,58(2):358-364
Comparative analyses of 50 single‐layer white architectural paints were conducted to determine the discrimination power using standard techniques and to provide a basis for assessing significance when paints with limited features are not discriminated. Utilizing Fourier transform infrared spectroscopy (FTIR), 68 undifferentiated pairs resulted, yielding a discrimination of 94.45%. Adding stereomicroscopy, scanning electron microscopy (SEM) with energy dispersive spectroscopy (EDS) and backscatter electron (BSE) imaging, and pyrolysis‐gas chromatography/mass spectrometry (Py‐GC/MS), the overall discrimination was 99.35%. The study included blind verification replicates, which resulted in the only pairs without indications of physical or chemical differences. The remaining groups of undifferentiated samples contained subtle differences by at least one technique, but were considered undifferentiated for the discrimination power evaluations. This study demonstrates a high degree of discrimination of single‐layer white architectural paints using methods of analysis often encountered in forensic science laboratories. 相似文献
24.
Daniel Ramos Ph.D. Joaquin Gonzalez‐Rodriguez Ph.D. Grzegorz Zadora Ph.D. Colin Aitken Ph.D. 《Journal of forensic sciences》2013,58(6):1503-1518
Performance of likelihood ratio (LR) methods for evidence evaluation has been represented in the past using, for example, Tippett plots. We propose empirical cross‐entropy (ECE) plots as a metric of accuracy based on the statistical theory of proper scoring rules, interpretable as information given by the evidence according to information theory, which quantify calibration of LR values. We present results with a case example using a glass database from real casework, comparing performance with both Tippett and ECE plots. We conclude that ECE plots allow clearer comparisons of LR methods than previous metrics, allowing a theoretical criterion to determine whether a given method should be used for evidence evaluation or not, which is an improvement over Tippett plots. A set of recommendations for the use of the proposed methodology by practitioners is also given. 相似文献
25.
26.
Inga Tidefors Hans Arvidsson Sara Ingevaldson Michael Larsson 《Journal of Sexual Aggression》2013,19(3):347-360
Abstract Few previous studies have explored the characteristics and dynamics of adolescent sibling incest. The objectives of this paper were twofold: first, to conduct a literature review that accounts for earlier research in the area, and secondly, to conduct a clinical study to explore differences regarding the characteristics of a group of adolescent sibling incest offenders (n=21) compared to a group of adolescent non-sibling offenders (n=24). Comparisons were made regarding variables such as family dysfunction, the offenders' prior victimization and offending behaviour. The data were derived from intake assessment files and semi-structured interviews with 45 adolescents who had sexually offended. The sibling incest offender group had grown up more often in dysfunctional families. Moreover, the results indicated that the offending behaviour in the sibling incest group was more severe. The study gives some empirical support for the possibility that sibling incest can be one sign, among others, of maltreatment during childhood. 相似文献
27.
Mark W. Perlin Ph.D. M.D. Jennifer M. Hornyak M.S. Garett Sugimoto M.S. Kevin W.P. Miller Ph.D. 《Journal of forensic sciences》2015,60(4):857-868
Computer methods have been developed for mathematically interpreting mixed and low‐template DNA. The genotype modeling approach computationally separates out the contributors to a mixture, with uncertainty represented through probability. Comparison of inferred genotypes calculates a likelihood ratio (LR), which measures identification information. This study statistically examined the genotype modeling performance of Cybergenetics TrueAllele® computer system. High‐ and low‐template DNA mixtures of known randomized composition containing 2, 3, 4, and 5 contributors were tested. Sensitivity, specificity, and reproducibility were established through LR quantification in each of these eight groups. Covariance analysis found LR behavior to be relatively invariant to DNA amount or contributor number. Analysis of variance found that consistent solutions were produced, once a sufficient number of contributors were considered. This study demonstrates the reliability of TrueAllele interpretation on complex DNA mixtures of representative casework composition. The results can help predict an information outcome for a DNA mixture analysis. 相似文献
28.
Longitudinal research has seriously challenged assumptions that juvenile sex offenders (JSO) are characterized by high level of dangerousness, mental health problems, and crime specialization in sex offenses. The current study examines the longitudinal pattern of offending among a sample of JSO and a sample of juvenile nonsex offenders. The research design includes longitudinal data over a nine-year period allowing the examination of offending patterns and the crime mix from age 12 to age 23. The findings highlight that, while JSO are prone to persist offending in adulthood, there is limited continuity of sex offending. Further, the findings stress the importance of taking into account nonsexual juvenile delinquency, more specifically, youth violence, to make a better assessment of early adult offending outcomes of JSO. 相似文献
29.
从胡某案件人手,对国内外单独犯因果关系的学说进行了评述,并对共同犯罪因果关系的学说进行了认真的研究,肯定了毕克迈耶与牧野英一的共同犯罪因果关系学说的现代价值,以此为借鉴分析胡某案件中涉及的共同犯罪的因果关系问题,提出考察本案因果关系应遵循的整体性原则,即共犯行为间有引起与被引起的关系,它们互为条件、互相配合、纵横交错,具有单个犯罪所不具有的特殊性;各共犯的行为与犯罪结果之间无论是直接的因果关系还是间接的因果关系,都是一种不容否认的客观存在;共犯的因果关系还具有双重性的特征,即大因果关系与小因果关系.由此得出胡某与张某、江某均应以故意伤害罪论处的结论. 相似文献
30.
连横一生以搜集、记录、整理、保存、研究台湾历史和文化为职志,著述颇丰,尤以《台湾通史》名世。纵观《台湾通史》的出版史和相关研究的学术史,实与近代以来中国历史进程相契合,其独特的学术价值和现实意义也逐步彰显。20世纪90年代以来,海峡两岸的《台湾通史》研究均进入新的发展阶段,无论视角还是视野、方法还是理论,特别是在学术性或学理性上,都有显著的推进和拓展。 相似文献