全文获取类型
收费全文 | 17583篇 |
免费 | 1420篇 |
专业分类
各国政治 | 863篇 |
工人农民 | 859篇 |
世界政治 | 1116篇 |
外交国际关系 | 761篇 |
法律 | 11202篇 |
中国共产党 | 4篇 |
中国政治 | 112篇 |
政治理论 | 3949篇 |
综合类 | 137篇 |
出版年
2022年 | 194篇 |
2021年 | 212篇 |
2020年 | 513篇 |
2019年 | 564篇 |
2018年 | 601篇 |
2017年 | 629篇 |
2016年 | 722篇 |
2015年 | 530篇 |
2014年 | 525篇 |
2013年 | 2114篇 |
2012年 | 450篇 |
2011年 | 466篇 |
2010年 | 641篇 |
2009年 | 597篇 |
2008年 | 495篇 |
2007年 | 485篇 |
2006年 | 520篇 |
2005年 | 434篇 |
2004年 | 482篇 |
2003年 | 434篇 |
2002年 | 449篇 |
2001年 | 440篇 |
2000年 | 442篇 |
1999年 | 382篇 |
1998年 | 280篇 |
1997年 | 273篇 |
1996年 | 205篇 |
1995年 | 184篇 |
1994年 | 204篇 |
1993年 | 210篇 |
1992年 | 266篇 |
1991年 | 275篇 |
1990年 | 253篇 |
1989年 | 247篇 |
1988年 | 249篇 |
1987年 | 244篇 |
1986年 | 261篇 |
1985年 | 246篇 |
1984年 | 230篇 |
1983年 | 227篇 |
1982年 | 155篇 |
1981年 | 154篇 |
1980年 | 112篇 |
1979年 | 146篇 |
1978年 | 115篇 |
1977年 | 98篇 |
1976年 | 92篇 |
1975年 | 94篇 |
1974年 | 112篇 |
1973年 | 101篇 |
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
1.
Stephanie Hartley Allysha Powanda Winburn Itiel E. Dror 《Journal of forensic sciences》2022,67(1):68-79
Subjective decisions make human cognitive processes more susceptible to bias and error. Specifically, research indicates that additional context biases forensic anthropologists’ morphological analyses. To address whether metric analyses are also subject to bias, we conducted a pilot study in which 52 experienced osteologists measured a difficult-to-classify human femur, with or without additional contextual information. Using a metric sectioning-point sex-estimation method, participants provided a sex estimate for individual skeletal element(s) and, when given multiple elements, the combined skeletal assemblage. Control group participants (n = 24) measured only the femur. In addition to the femur, bias group participants (n = 28) either measured a female humerus and viewed a female-biasing photograph (n = 14) or measured a male humerus and viewed a male-biasing photograph (n = 14). We explored whether the experts in the different groups would differ in: (1) femoral measurements; (2) femoral sex-estimation conclusions; and (3) final sex-estimation conclusions for the skeletal assemblage. Although the femoral measurements and femoral sex estimates were comparable across groups, the overall sex estimates in the female-biased group were impacted by contextual information—differing from both the control and male-biased groups (p < 0.001). Our results demonstrate that cognitive bias can occur even in metric sex-estimation conclusions. Specifically, this occurred when the metric data and single-element sex estimates were synthesized into an overall estimate. Thus, our results suggest that metric methods are most vulnerable to bias when data are synthesized into an overall conclusion, highlighting the need for bias countermeasures and comprehensive statistical frameworks for synthesizing metric data to mitigate the effects of cognitive bias. 相似文献
2.
Walter E. Bruehs Nicole M. Tucker Kimberly A. Meline 《Journal of forensic sciences》2022,67(1):200-206
Often, criminal acts involving a vehicle are caught on digital video surveillance systems. While potentially useful for an investigation, the recording conditions are typically less than optimal for the extraction of key information for the identification of the perpetrator, such as a license plate. Providing the make, model and year of a questioned vehicle is a common request for examiners, to narrow the field of potential suspect vehicles. This study seeks to compare the performance of a nonpeer-reviewed make, model, and year determination between two separate groups, specifically, trained forensic image examiners and nontrained individuals. Results show that even with varied image capture conditions and quality, the trained forensic image examiners more correctly and completely identified the test group of questioned vehicles make, model, and year. 相似文献
3.
ABSTRACTLike many Republican presidential candidates before him, Donald J. Trump campaigned on a pro-business, anti-regulation platform, and since his election in November 2016, he has directed his administration to move forward with deregulation in many arenas, including consumer financial protections, environmental controls, and workplace safety among others. Past efforts to roll back regulations governing certain industries, such as the savings and loan and the mortgage industries, have had harmful consequences for the general public or for specific interest groups. In this study, we review what the Trump administration has accomplished with regard to deregulation to date. Then, based on past deregulatory fiascos, we theorize the harmful collateral consequences that may result from this most recent swing of the regulatory-deregulatory pendulum. 相似文献
4.
Michael Leigh 《European Security》2019,28(3):382-391
ABSTRACTReflecting on the results presented in articles in this special issue, European leaders should take greater account of external perceptions in crafting the European Union's strategic narrative and guiding its actions. Failure to do so has impaired external policies like the Euro-Mediterranean Partnership, the European Neighbourhood Policy and Eastern Partnership. Leaders emerging from the Arab uprisings perceived the EU as complicit with their countries’ former anciens régimes and Russian leaders see EU support for democracy and the market economy in former Soviet states as duplicitous and instrusive. Awareness of such perceptions should be filtered into EU decision-making, without validating views that European officials and diplomats consider misleading. 相似文献
5.
Felice Carabellese M.D. Alan R. Felthous M.D. Donatella La Tegola Psy.D. Ph.D. Ilaria Rossetto M.D. Domenico Montalbò M.D. Filippo Franconi M.D. Roberto Catanesi M.D. 《Journal of forensic sciences》2019,64(5):1438-1443
Various studies have shown that women with psychopathy tend to commit crimes that are less violent than those of psychopathic men. The present study was designed to address the influence of psychopathy on the crimes committed by female offenders. A national sample of female offenders found NGRI or of diminished responsibility and at risk for criminal recidivism (OPG patients) was compared with a sample of female offenders who were convicted and imprisoned. Results of this comparison between the two groups of female offenders indicate that psychopathy is a transversal psychopathological dimension which may or may not be associated with other mental disorders. In both samples, the most commonly reported offenses among women with high PCL‐R scores were minor offenses, not particularly violent, but they appear to be related to typical psychopathic features such as superficial charm, pathological lying, and manipulation. 相似文献
6.
Wu‐ting Tsai Ph.D. Chia‐Yun Chang B.S. Chia‐I Hu M.S. 《Journal of forensic sciences》2019,64(4):1230-1233
Fatal fall from a height initiated with a swinging motion on the sagittal plane of the victim's body is examined. Method of analytical mechanics is adopted to establish the functional relations between the swinging angle of the body and the force needed to sustain the body until release, and the amount of the horizontal displacement that would occur after release. The analysis is applied to support an expert opinion presented in a criminal court in which two accused were convicted of murder for dropping a female victim from a bridge. The results indicate that it is unlikely for the body to locate as recorded by the police investigation report in the case. This study demonstrates that a straightforward mechanical analysis can be utilized to examine uncommon falling scenarios. 相似文献
7.
Asia Europe Journal - This article examines the role of strategic partnerships in Indian foreign policy and the nature and perceptions of India and the European Union about the strategic... 相似文献
8.
Serena Maria Curti M.D. Francesco Lupariello M.D. Elena Coppo M.D. Evan Julian Praznik B.S. Sara Simona Racalbuto Psy.D. Giancarlo Di Vella M.D. Ph.D. 《Journal of forensic sciences》2019,64(5):1427-1437
The literature on child sexual abuse (CSA) perpetrated by female sexual offenders (FSOs) is exiguous, and many studies have focused on judicial databases. The present retrospective study, instead, analyzed clinical and judicial data of a group of both victims and alleged FSOs, to additionally include women who have not been convicted by the criminal justice system, but who hold strong clinical suspicions of being perpetrators of CSA. The medical records and the Court files of 11 children and their eight suspected FSOs have been collected and critically reviewed in light of the literature to date. This approach allowed for a deeper understanding of the relationship between child and FSO. The authors hypothesize that the victims’ severe psychopathological outcomes were a result of a failure to develop appropriate attachments with their prospective caregivers, which could have been damaged by the pathological relationship with FSOs, who were the victims’ caregivers. 相似文献
9.
Ana Celeste Ximenes Oliveira Ph.D. Alexandre Leão Ph.D. Karla Balzuweit Ph.D. Livia Siman Ph.D. Oscar Nassif Mesquita Ph.D. Luiz Orlando Ladeira Ph.D. Luiz Alberto Cury Ph.D. 《Journal of forensic sciences》2019,64(6):1867-1872
The optical and morphological properties of resveratrol were investigated. This nontoxic fluorescent natural material, emitting in the visible blue light, was used as an optical marker, enabling the enhancement of the image contrast coming from relief pictures marked on challenging surfaces. By applying appropriated imaging softwares, this marker was verified to be very useful in the latent fingerprint recognition deposited on different wood surface types, mainly those with high level of roughness, where conventional forensic materials do not allow effective fingerprint image visualization. 相似文献
10.
In response to research demonstrating that irrelevant contextual information can bias forensic science analyses, authorities have increasingly urged laboratories to limit analysts' access to irrelevant and potentially biasing information (Dror and Cole (2010) [3]; National Academy of Sciences (2009) [18]; President's Council of Advisors on Science and Technology (2016) [22]; UK Forensic Science Regulator (2015) [26]). However, a great challenge in implementing this reform is determining which information is task-relevant and which is task-irrelevant. In the current study, we surveyed 183 forensic analysts to examine what they consider relevant versus irrelevant in their forensic analyses. Results revealed that analysts generally do not regard information regarding the suspect or victim as essential to their analytic tasks. However, there was significant variability among analysts within and between disciplines. Findings suggest that forensic science disciplines need to agree on what they regard as task-relevant before context management procedures can be properly implemented. The lack of consensus about what is relevant information not only leaves room for biasing information, but also reveals foundational gaps in what analysts consider crucial in forensic decision making. 相似文献