全文获取类型
收费全文 | 1083篇 |
免费 | 56篇 |
专业分类
各国政治 | 53篇 |
工人农民 | 45篇 |
世界政治 | 175篇 |
外交国际关系 | 101篇 |
法律 | 479篇 |
中国政治 | 7篇 |
政治理论 | 274篇 |
综合类 | 5篇 |
出版年
2023年 | 4篇 |
2021年 | 6篇 |
2020年 | 11篇 |
2019年 | 22篇 |
2018年 | 40篇 |
2017年 | 45篇 |
2016年 | 44篇 |
2015年 | 28篇 |
2014年 | 25篇 |
2013年 | 162篇 |
2012年 | 46篇 |
2011年 | 44篇 |
2010年 | 31篇 |
2009年 | 32篇 |
2008年 | 48篇 |
2007年 | 59篇 |
2006年 | 41篇 |
2005年 | 52篇 |
2004年 | 47篇 |
2003年 | 46篇 |
2002年 | 42篇 |
2001年 | 18篇 |
2000年 | 17篇 |
1999年 | 24篇 |
1998年 | 11篇 |
1997年 | 9篇 |
1996年 | 10篇 |
1995年 | 11篇 |
1994年 | 20篇 |
1993年 | 13篇 |
1992年 | 8篇 |
1991年 | 15篇 |
1990年 | 10篇 |
1989年 | 8篇 |
1988年 | 9篇 |
1987年 | 4篇 |
1986年 | 6篇 |
1985年 | 7篇 |
1984年 | 4篇 |
1983年 | 7篇 |
1982年 | 5篇 |
1981年 | 8篇 |
1980年 | 7篇 |
1979年 | 4篇 |
1977年 | 8篇 |
1976年 | 4篇 |
1975年 | 3篇 |
1974年 | 2篇 |
1968年 | 2篇 |
1966年 | 2篇 |
排序方式: 共有1139条查询结果,搜索用时 9 毫秒
181.
Howard MO Hall MT Edwards JD Vaughn MG Perron BE Winecker RE 《The American journal of forensic medicine and pathology》2011,32(1):61-70
Suicide by asphyxiation using helium is the most widely-promoted method of "self-deliverance" by right-to-die advocates. However, little is known about persons committing such suicides or the circumstances and manner in which they are completed. Prior reports of suicides by asphyxiation involving helium were reviewed and deaths determined by the North Carolina Office of the Chief Medical Examiner to be helium-associated asphyxial suicides occurring between January 1, 2000 and December 31, 2008 were included in a new case series examined in this article. The 10 asphyxial suicides involving helium identified in North Carolina tended to occur almost exclusively in non-Hispanic, white men who were relatively young (M age = 41.1 T 11.6). In 6 of 10 cases, decedents suffered from significant psychiatric dysfunction; in 3 of these 6 cases, psychiatric disorders were present comorbidly with substance abuse. In none of these cases were decedents suffering from terminal illness. Most persons committing suicide with helium were free of terminal illness but suffered from psychiatric and/or substance use disorders. 相似文献
182.
The divorce mediation field has recently seen the development of several “hybrid” alternative dispute resolution approaches to child custody disputes. The “settlement‐focused parenting plan consultation” (SFPPC) is a form of evaluative mediation, conducted by a “parenting plan consultant” (PPC), who possesses the combined expertise of a mediator and child custody evaluator. This hybrid model is a more expedient and considerably less expensive approach than a child custody evaluation, but preserves the hallmark mediation principle of self‐determination. The article describes the theory underlying the SFPPC, delineates the role requirements, procedures, and techniques of the parenting plan consultant, and addresses legal and ethical issues. 相似文献
183.
184.
Kyle C. Kopko Sarah McKinnon Bryner Jeffrey Budziak Christopher J. Devine Steven P. Nawara 《Political Behavior》2011,33(2):271-290
This study uses an experimental design to simulate the ballot counting process during a hand-recount after a disputed election.
Applying psychological theories of motivated reasoning to the political process, we find that ballot counters’ party identification
conditionally influences their ballot counting decisions. Party identification’s effect on motivated reasoning is greater
when ballot counters are given ambiguous, versus specific, instructions for determining voter intent. This study’s findings
have major implications for ballot counting procedures throughout the United States and for the use of motivated reasoning
in the political science literature. 相似文献
185.
Prospective associations between violent victimization, the quality of the parent-adolescent relationship, and the subsequent
onset of violent aggression were examined. Using the National Longitudinal Study of Adolescent Health (Add Health), participants
were divided into violent and non-violent cohorts based on whether they had committed an act of violence prior to Wave 1.
Results showed that violent victimization at Wave 1 predicted the onset of violent aggression at Wave 2 for adolescents who
were non-violent at baseline. Earlier violent victimization, however, had no effect on aggression trajectories for baseline
violent adolescents. Parent-adolescent relations functioned as a protective buffer, such that violently victimized adolescents
who reported high quality relationships with parents were less likely to be involved in violent aggression at Wave 2. Subsequent
gender interaction analyses revealed that while the buffering effect was evident for males, parent-adolescent relations did
not protect females from the onset of aggressive behaviors. Findings are evaluated in light of social learning and cycle of
violence theories that highlight the role of violent victimization among adolescents.
相似文献
Jeffrey T. Cookston (Corresponding author)Email: |
186.
The accurate quantification of target DNA is an important step in the short tandem repeat analysis of forensic biological samples. By utilizing quantification data to control the amount of template DNA in the polymerase chain reaction (PCR), forensic scientists can optimize testing and minimize the consumption of limited samples. The ability to identify and quantify target DNA in mixed-species samples is crucial when it may be overwhelmed by nontarget DNA, as in cases of dog attack. We evaluated two quantitative real-time PCR assays for dynamic range, species specificity, and inhibition by humic acid. While both assays proved to be highly sensitive and discriminating, the Melanocortin-1 Receptor (MC1R) gene Taqman assay had the advantages of a shorter run time, greater efficiency, and safer reagents. In its application to forensic casework, the MC1R assay has been advantageous for quantifying dog DNA in a variety of mixed-species samples and facilitating the successful profiling of individual dogs. 相似文献
187.
Abstract: In the United States, foodborne botulism is most commonly associated with home‐canned food products. Between 1950 and 2005, 405 separate outbreaks of botulism were reported to the Centers for Disease Control and Prevention (CDC). Approximately 8% of these outbreaks were attributed to commercially produced canned food products. Overall, 5–10% of persons ingesting botulinum toxin die. Few reports exist pertaining to autopsy findings in cases of foodborne botulism. Here, we report the autopsy findings of a man who died after a prolonged illness caused by botulinum toxin exposure likely attributable to a commercially prepared food source. Despite extensive testing, our histopathologic findings were nonspecific. We therefore conclude that the forensic pathologist must become familiar with the neurotoxicity syndrome associated with this illness. Maintaining vigilance for botulism by carefully reviewing the decedent’s clinical history will aid in the early identification and control of outbreaks, either foodborne or terrorism‐related. 相似文献
188.
Jeffrey A. Daniels Terri E. Royster Gregory M. Vecchi Erin E. Pshenishny 《Journal of family violence》2010,25(6):587-594
Although not common occurrences, schools are occasionally the site of barricaded captive events. To date little research has
examined these acts of school violence. The purpose of this article is to describe 19 school barricaded captive events that
occurred between February, 1998 and September, 2007 in the United States. Data were analyzed by examination of news reports
of each incident, and include the following variables: Incident location (state, community), school level and size, time of
day of the event, location of the event within the school, age and sex of the subjects, information about the captives, presence
of school resource officers, student screening mechanisms, behavioral changes of the subjects, the subject’s expected outcomes,
injuries or fatalities, demands and deadlines, captive escapes and releases, weapons, incident resolution, tactical team response,
and negotiations. Results pertain to incident demographics, prevention/mitigation, and response. 相似文献
189.
Jeffrey James Lynch M.Sc John Byrd Ph.D. Carrie B. LeGarde M.A. 《Journal of forensic sciences》2018,63(2):371-380
This study compares the original pair‐matching osteometric sorting model (J Forensic Sci 2003 ;48:717) against two new models providing validation and performance testing across three samples. The samples include the Forensic Data Bank, USS Oklahoma, and the osteometric sorting reference used within the Defense POW/MIA Accounting Agency. A computer science solution to generating dynamic statistical models across a commingled assemblage is presented. The issue of normality is investigated showing the relative robustness against non‐normality and a data transformation to control for normality. A case study is provided showing the relative exclusion power of all three models from an active commingled case within the Defense POW/MIA Accounting Agency. In total, 14,357,220 osteometric t‐tests were conducted. The results indicate that osteometric sorting performs as expected despite reference samples deviating from normality. The two new models outperform the original, and one of those is recommended to supersede the original for future osteometric sorting work. 相似文献
190.
Preston M. Mote Jeffrey S. Neuschatz Brian H. Bornstein Stacy A. Wetmore Kylie N. Key 《Journal of Police and Criminal Psychology》2018,33(4):375-384
Prior research has shown that primary confession evidence can alter eyewitnesses’ identifications and self-reported confidence. The present study investigated whether secondary confession evidence from a jailhouse informant could have the same effect. Participants (N?=?368) watched a video of an armed robbery and made an identification decision from a photo lineup. Except for those in the no-feedback conditions, all participants then read that certain lineup members either confessed to the crime, denied involvement, or were implicated by a jailhouse informant. Jailhouse informant testimony implicating the identified lineup member led participants to have significantly higher confidence in their identification. In contrast, jailhouse informant testimony that implicated a lineup member other than the identified led participants to have significantly lower confidence in their initial identification, and 80% of these witnesses changed their identification. These results indicate that jailhouse informant testimony can influence eyewitnesses’ confidence and their identification decisions. 相似文献