全文获取类型
收费全文 | 1701篇 |
免费 | 507篇 |
专业分类
各国政治 | 386篇 |
工人农民 | 52篇 |
世界政治 | 216篇 |
外交国际关系 | 91篇 |
法律 | 738篇 |
中国政治 | 45篇 |
政治理论 | 647篇 |
综合类 | 33篇 |
出版年
2021年 | 29篇 |
2020年 | 36篇 |
2019年 | 156篇 |
2018年 | 92篇 |
2017年 | 140篇 |
2016年 | 150篇 |
2015年 | 134篇 |
2014年 | 123篇 |
2013年 | 545篇 |
2012年 | 92篇 |
2011年 | 93篇 |
2010年 | 109篇 |
2009年 | 48篇 |
2008年 | 75篇 |
2007年 | 40篇 |
2006年 | 38篇 |
2005年 | 23篇 |
2004年 | 30篇 |
2003年 | 18篇 |
2002年 | 20篇 |
2001年 | 7篇 |
2000年 | 17篇 |
1999年 | 14篇 |
1998年 | 10篇 |
1997年 | 14篇 |
1996年 | 14篇 |
1995年 | 13篇 |
1994年 | 12篇 |
1993年 | 13篇 |
1992年 | 8篇 |
1991年 | 6篇 |
1990年 | 8篇 |
1989年 | 4篇 |
1988年 | 8篇 |
1987年 | 4篇 |
1986年 | 7篇 |
1985年 | 5篇 |
1984年 | 8篇 |
1983年 | 6篇 |
1982年 | 4篇 |
1981年 | 6篇 |
1980年 | 7篇 |
1979年 | 5篇 |
1978年 | 5篇 |
1977年 | 4篇 |
1976年 | 2篇 |
1975年 | 1篇 |
1974年 | 3篇 |
1969年 | 2篇 |
排序方式: 共有2208条查询结果,搜索用时 390 毫秒
271.
272.
Josep De Alcaraz‐Fossoul Ph.D. Carme Barrot Feixat Ph.D. Sara C. Zapico Ph.D. Luke McGarr B.Sc. Clara Carreras‐Marin M.Sc. Jack Tasker B.Sc. Manel Gené Badia Ph.D. 《Journal of forensic sciences》2019,64(4):1057-1066
This fourth article of the series is taking an in‐depth analysis at the visible aging of latent fingermarks regarding changes in ridge widths over time. The objective is to quantify and statistically describe significant ridge size variations under controlled indoor conditions. The effect of three environmental variables are examined: type of secretion (sebaceous‐ and eccrine‐rich) and type of substrate (glass and polystyrene) when aged in three light conditions (direct natural light, shade, and dark). Prior to width measurements, fresh and aged fingermarks were powdered with titanium dioxide (TiO2) and sequentially photographed at predetermined times over 6 months. Three independent observers measured the ridges from thirty predetermined locations using strategically placed intersecting lines on the print. Results indicate that fingermarks deposited on glass are more resilient to degradation compared with those deposited on plastic. The presence of direct natural light plays a negligible role on degradation compared to secretion and substrate types. 相似文献
273.
Niken Dwi Wahyu Cahyani Ph.D Kim‐Kwang Raymond Choo Ph.D. Nurul Hidayah Ab Rahman Ph.D. Helen Ashman Ph.D. 《Journal of forensic sciences》2019,64(1):243-253
Advances in technologies including development of smartphone features have contributed to the growth of mobile applications, including dating apps. However, online dating services can be misused. To support law enforcement investigations, a forensic taxonomy that provides a systematic classification of forensic artifacts from Windows Phone 8 (WP8) dating apps is presented in this study. The taxonomy has three categories, namely: Apps Categories, Artifacts Categories, and Data Partition Categories. This taxonomy is built based on the findings from a case study of 28 mobile dating apps, using mobile forensic tools. The dating app taxonomy can be used to inform future studies of dating and related apps, such as those from Android and iOS platforms. 相似文献
274.
Research evaluation is increasingly influenced by quantitative data. We focus on the influential Web of Science Journal Citation Reports (JCR) ranking of law journals and critically assess its methodology. In particular, we consider the existence and impact of a tacit citation cartel between US law reviews. A study of 45 US student‐edited (SE) and 45 peer‐reviewed (PR) journals included in the category of Law in the JCR revealed that PR and SE journals are more inclined to cite members of their own class and that this phenomenon is more pronounced in SE generalist journals, reflecting tacit cartelistic behavior generated by deeply entrenched institutional practices. Because US SE journals produce more citations than PR journals, the fact that their citations are directed almost exclusively to SE journals elevates their scores and distorts the journals' ranking and can consequently undermine the flow and creation of ideas. We discuss policy measures that can counter the adverse effects of this situation. 相似文献
275.
Pascale Cornut St‐Pierre 《Law & society review》2019,53(2):323-352
Since the 1990s, legal consciousness has been amply used by sociolegal scholars to better understand the everyday lives of ordinary people, with a strong focus on vulnerable or impoverished people. This article argues that legal consciousness, with some methodological adjustments, could lend itself to the study of the rich and powerful by investigating both the technical work of their lawyers and how that work shapes our broader legal culture. To illustrate this point, this article takes tax avoidance as a case study. Drawing on materials revealed by a recent tax scandal, it suggests that current difficulty in tackling the problem of tax avoidance rests on uneven access to the cultural repertoires related to legal technique and legal innovation, which fosters the tax‐avoidance narrative's ambiguity. 相似文献
276.
277.
278.
The appropriation of “welfare stigma” or stereotypes about poor people's overreliance and abuse of public aid in two core criminal justice functions is examined: felony adjudication in a court system and space allocation in a jail. Through a comparative ethnographic study in which an abductive analysis of data (20 months of fieldwork) was used, we show that criminal justice gatekeepers utilize welfare stigma to create stricter eligibility criteria for due process in criminal courts and occupancy in jails. Specifically, the number of court appearances, motions, trials, jail beds, food, showers, and medical services is considered by professionals to be the benefits that individuals seek to access and abuse. Professionals view their role as preventing (rather than granting) access to these resources. The comparative nature of our data reveals that welfare stigma has interorganizational utility by serving two different organizational goals: It streamlines convictions in courts, which pulls defendants through adjudication, and conversely, it expands early release from jails, which pulls inmates out of the custody population. In the context of diminishing social safety nets, our findings have implications for understanding how discretion is exercised in an American criminal justice system increasingly tasked with the distribution of social services to the urban poor. 相似文献
279.
Chun‐Chieh Chen M.S. Chao‐Kai Yang Ph.D Chun‐Yu Chen M.S. Henry C. Lee Ph.D. Sheng‐Meng Wang Ph.D. 《Journal of forensic sciences》2017,62(1):205-208
Postmortem decay causes fingertip decomposition, desiccation, shriveling, and rigidity, reducing the possibility of obtaining sufficiently clear fingerprints for identification. In this study, five rehydration solutions (ammonium hydroxide, sodium carbonate, potassium hydroxide, urea, and warm water) followed by three fingerprint recording methods (photograph, inking roll, and dusting tape) were investigated to process mummified fingertips from an unidentified cadaver. The results show that sodium carbonate treatment is the most effective for minutiae restoration, followed by ammonium hydroxide treatment. This study also demonstrates that even those fingertips that previously failed in urea solution, 1% potassium hydroxide solution, and warm water treatment could be further improved with sodium carbonate solution to obtain qualified minutiae for fingerprint matching. The optimal procedure is rehydrating the desiccated fingertips with sodium carbonate solution for 24 h followed by dusting the finger and transferring the print to adhesive tape. 相似文献
280.
Analyzing and Interpreting Lime Burials from the Spanish Civil War (1936–1939): A Case Study from La Carcavilla Cemetery
下载免费PDF全文
![点击此处可从《Journal of forensic sciences》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Eline M. J. Schotsmans Ph.D. Almudena García‐Rubio M.Sc. Howell G. M. Edwards Ph.D. Tasnim Munshi Ph.D. Andrew S. Wilson Ph.D. Luis Ríos Ph.D. 《Journal of forensic sciences》2017,62(2):498-510
Over 500 victims of the Spanish Civil War (1936–1939) were buried in the cemetery of La Carcavilla (Palencia, Spain). White material, observed in several burials, was analyzed with Raman spectroscopy and powder XRD, and confirmed to be lime. Archaeological findings at La Carcavilla's cemetery show that the application of lime was used in an organized way, mostly associated with coffinless interments of victims of Francoist repression. In burials with a lime cast, observations made it possible to draw conclusions regarding the presence of soft tissue at the moment of deposition, the sequence of events, and the presence of clothing and other evidence. This study illustrates the importance of analyzing a burial within the depositional environment and taphonomic context. 相似文献