全文获取类型
收费全文 | 935篇 |
免费 | 30篇 |
专业分类
各国政治 | 28篇 |
工人农民 | 58篇 |
世界政治 | 72篇 |
外交国际关系 | 46篇 |
法律 | 500篇 |
中国政治 | 14篇 |
政治理论 | 243篇 |
综合类 | 4篇 |
出版年
2023年 | 6篇 |
2022年 | 6篇 |
2021年 | 7篇 |
2020年 | 24篇 |
2019年 | 17篇 |
2018年 | 33篇 |
2017年 | 44篇 |
2016年 | 37篇 |
2015年 | 22篇 |
2014年 | 32篇 |
2013年 | 114篇 |
2012年 | 40篇 |
2011年 | 37篇 |
2010年 | 20篇 |
2009年 | 19篇 |
2008年 | 29篇 |
2007年 | 24篇 |
2006年 | 33篇 |
2005年 | 31篇 |
2004年 | 26篇 |
2003年 | 28篇 |
2002年 | 20篇 |
2001年 | 12篇 |
2000年 | 19篇 |
1999年 | 7篇 |
1998年 | 16篇 |
1997年 | 13篇 |
1996年 | 7篇 |
1995年 | 13篇 |
1994年 | 15篇 |
1993年 | 17篇 |
1992年 | 14篇 |
1991年 | 7篇 |
1990年 | 14篇 |
1989年 | 16篇 |
1988年 | 16篇 |
1987年 | 16篇 |
1986年 | 7篇 |
1985年 | 11篇 |
1984年 | 10篇 |
1983年 | 6篇 |
1981年 | 9篇 |
1980年 | 5篇 |
1977年 | 6篇 |
1976年 | 6篇 |
1974年 | 4篇 |
1973年 | 9篇 |
1969年 | 6篇 |
1967年 | 4篇 |
1965年 | 7篇 |
排序方式: 共有965条查询结果,搜索用时 0 毫秒
111.
112.
Donald Tomaskovic-Devey Cynthia Pfaff Wright Ronald Czaja Kirk Miller 《Journal of Quantitative Criminology》2006,22(4):279-297
Survey reports of police stops and driving behavior are a potential methodology for examining the magnitude and prevalence of the “Driving While Black” phenomena. However, estimates of the magnitude or correlates of racial disparity in police stops from self-reported survey data are potentially compromised if the accuracy of self-reports of police stops and driving behavior differ by race. We report on the results of a reverse record check survey in which we directly assess the degree and consequences of differences by race in self-reports of police stops. In our sample of drivers who had been cited for speeding in the preceding year, we found that 77% of the White respondents and 71% of the African American respondents admitted to being stopped. While both groups underreport stops, African Americans do so at a higher rate. This finding is consistent with many past studies which report stronger social desirability effects on survey responses among African Americans. Thus, survey data will tend to underestimate the magnitude of the “Driving While Black” phenomena.
相似文献
Donald Tomaskovic-DeveyEmail: |
113.
114.
115.
116.
Worley CG Wiltshire SS Miller TC Havrilla GJ Majidi V 《Journal of forensic sciences》2006,51(1):57-63
Using micro-X-ray fluorescence (MXRF), a novel means of detecting fingerprints was examined in which the prints were imaged based on their elemental composition. MXRF is a nondestructive technique. Although this method requires a priori knowledge about the approximate location of a print, it offers a new and complementary means for detecting fingerprints that are also left pristine for further analysis (including potential DNA extraction) or archiving purposes. Sebaceous fingerprints and those made after perspiring were detected based on elements such as potassium and chlorine present in the print residue. Unique prints were also detected including those containing lotion, saliva, banana, or sunscreen. This proof-of-concept study demonstrates the potential for visualizing fingerprints by MXRF on surfaces that can be problematic using current methods. 相似文献
117.
Koehler SA Weiss HB Shakir A Shaeffer S Ladham S Rozin L Dominick J Lawrence BA Miller TR Wecht CH 《The American journal of forensic medicine and pathology》2006,27(1):30-35
Historically, fatal injury monitoring and surveillance have relied on mortality data derived from death certificates (DC). However, problems associated with utilizing DC have been well documented. Recently, access to and utilization of hospital discharge data (HDD) have offered a new and important secondary source of data regarding in-hospital deaths. However, studies have shown that discrepancies between the HDD and the corresponding DC often exist. This discrepancy was especially evident when comparing HDD to the vital statistics data (VSD) for deaths by falls among those aged 65 and over in 19 states.This was a retrospective forensic review of elderly (age 65 and over) fall-associated fatalities (E880-E888) identified from HDD and VSD in Allegheny County, Pennsylvania, between 1997 and 1998. Seventy-seven cases were identified, with the original manner of death listed as natural (34), suicide (1), and accidental (42) on the DC. Following a forensic review of the cases, the manner of the death on the DC should have been changed from natural to accidental in 28% (n = 12) of the cases, representing an undercount in the VSD. Undercounts were due to a failure of clinicians to account for the significance of a fall event that contributed to subsequent pathology and death. In addition, in that 22% (n = 17) of the HDD fall-associated deaths, the fall did not contribute directly or sequentially to the underlying cause of death, thereby representing an overcount in the HDD.Based on these findings we recommend (1) elderly fall surveillance systems should only count HDD E-coded falls that demonstrate a serious traumatic injury which directly or subsequently results in death, (2) all in-hospital fall-associated deaths should be reported to and reviewed by coroner/Medical Examiner offices for determination of the cause and manner of death, and (3) physicians should be better educated in properly completing death certificates. 相似文献
118.
119.
Much research on adolescent delinquency pivots on the notion of peer influence. The peer effect that is typically employed
emphasizes the transmission of behaviors and attitudes between adolescents who are directly linked. In this paper, we argue
that to rely solely on those direct social ties to capture peer influence oversimplifies the realities of adolescent society.
We use data from the National Longitudinal Study of Adolescent Health to show that indirect peer relations can exercise independent
influences on adolescent delinquency. Adolescents actively draw on the examples of friends of friends, and even more distal
peers, as they develop their repertoires of action and identity. We argue, however, that this behavior actually reflects adolescents’
ongoing struggle to impress their closest friends and to preserve their social circle. Indeed, the extent to which adolescents
are willing to model the behavior of indirect contacts seems to decline as that behavior becomes more dissimilar from that
of their close friends. Our findings dovetail with an account of the adolescent as a rational actor who struggles for social
acceptance in a complex peer environment which offers conflicting behavioral models.
相似文献
Danielle C. PayneEmail: |
120.