全文获取类型
收费全文 | 6449篇 |
免费 | 154篇 |
专业分类
各国政治 | 259篇 |
工人农民 | 261篇 |
世界政治 | 518篇 |
外交国际关系 | 243篇 |
法律 | 3951篇 |
中国政治 | 60篇 |
政治理论 | 1294篇 |
综合类 | 17篇 |
出版年
2021年 | 45篇 |
2020年 | 82篇 |
2019年 | 117篇 |
2018年 | 150篇 |
2017年 | 140篇 |
2016年 | 141篇 |
2015年 | 83篇 |
2014年 | 139篇 |
2013年 | 670篇 |
2012年 | 163篇 |
2011年 | 179篇 |
2010年 | 137篇 |
2009年 | 151篇 |
2008年 | 185篇 |
2007年 | 173篇 |
2006年 | 167篇 |
2005年 | 156篇 |
2004年 | 175篇 |
2003年 | 150篇 |
2002年 | 117篇 |
2001年 | 321篇 |
2000年 | 291篇 |
1999年 | 199篇 |
1998年 | 95篇 |
1997年 | 92篇 |
1996年 | 56篇 |
1995年 | 66篇 |
1994年 | 61篇 |
1993年 | 53篇 |
1992年 | 135篇 |
1991年 | 145篇 |
1990年 | 145篇 |
1989年 | 140篇 |
1988年 | 129篇 |
1987年 | 140篇 |
1986年 | 107篇 |
1985年 | 105篇 |
1984年 | 106篇 |
1983年 | 89篇 |
1982年 | 59篇 |
1981年 | 82篇 |
1980年 | 39篇 |
1979年 | 77篇 |
1978年 | 45篇 |
1975年 | 39篇 |
1974年 | 53篇 |
1973年 | 63篇 |
1972年 | 42篇 |
1971年 | 35篇 |
1970年 | 31篇 |
排序方式: 共有6603条查询结果,搜索用时 15 毫秒
1.
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
2.
Flagg Miller 《Critical Studies on Terrorism》2019,12(2):185-209
Discourse on terrorist violence has long facilitated an especially liberal form of securitisation. Originally evoked in reference to anarchists and communists, a rational consideration of terrorist violence, inaugurated by the concept, asks for deferred judgement about the nature of, or reasons behind, violence related to terror on the premise that state and international legal norms governing the legitimate use of violence fail to circumscribe the proper capacities of the state to regulate and explain terrorism. Where sovereign powers along with their military and civilian instruments of coercion are deemed unable to regulate violence effectively, analysts of terrorist violence and their readership are invited to consider and cultivate new sensibilities. Beginning in the 1980s, studies by psychologists found renewed urgency among a growing cadre of interdisciplinary terror experts who found religion, Islam especially, a key variable of analysis. I situate their contributions in a longer history of secular and racialising discourse about terrorist violence. Central to this history are practices of reading, translating, interpreting and archiving texts. Evidence for the argument is based on the analysis of an algorithm that allegedly predicts the likelihood of terrorist strikes by counting words spoken by al-Qa?ida leaders and correlating their frequency with over 30 psychological categories. 相似文献
3.
Merrian J. Brooks DO MS Joshua Leskovac MS Mark F. Benedetto MS Elizabeth Miller MD PhD Edward P. Mulvey PhD 《Juvenile & family court journal》2020,71(4):53-62
Motivational interviewing (MI) is a communication style focused on enhancing clients’ own motivation towards change. In the justice system MI has evidence to support that it enhances communication and change behaviors in youth. As most MI training is designed for healthcare settings training and implementation of MI must be adapted to fit the juvenile justice model. This includes both rehabilitation and restorative justice. Here we describe the details that allowed one county small county in Pennsylvania to roll out MI training and initial skills review in less than 6 months. The case reviews the details of planning, trainings, and timing of activities. We then discuss what elements of those details fit into a greater implementation plan that may be applied elsewhere. Four key elements were instrumental to implementation: 1) appreciation of JPO time constraints, 2) cost containment 3) using blending to enhance JPO flexibility with MI use, and 4) policies that normalize use of MI. This outline may assist other courts in their own implementation efforts. 相似文献
4.
Alex J. Krotulski M.S.F.S. Susan Jansen Varnum Ph.D. Barry K. Logan Ph.D. 《Journal of forensic sciences》2020,65(2):550-562
Novel psychoactive substances (NPS) are synthetic drugs that pose serious public health and safety concerns. A multitude of NPS have been identified in the United States, often implicated in forensic investigations. The most common and effective manner for identifying NPS is by use of mass spectrometry and the true utility lies within nontargeted acquisition techniques. During this study, a liquid chromatography quadrupole time-of-flight mass spectrometry (LC-QTOF-MS) assay was developed, validated, and implemented for forensic toxicology testing. A SCIEX TripleTOF™ 5600 + with SWATH® acquisition was used. Resulting data were compared against an extensive library database containing more than 800 compounds. The LC-QTOF-MS assay was applied to the reanalysis of biological sample extracts to discover emergent NPS. More than 3,000 sample extracts were analyzed, and more than 20 emerging NPS were detected for the first time. Among these were isopropyl-U-47700, 3,4-methylenedioxy-U-47700, fluorofuranylfentanyl, N-methyl norfentanyl, 2F-deschloroketamine, 3,4-methylenedioxy-alpha-PHP, eutylone, and N-ethyl hexedrone. 相似文献
5.
6.
7.
Several studies had concluded that the police subculture holds values and attitudes that are distinct from the rest of the population. Among these values is a focus on law and order. While researchers agree that police tend to hold different values, they disagree on the source of the attitudes. Some had argued that the attitudes reflected differences regarding who was recruited for law enforcement careers while others said that the differences reflected changes that occurred to individuals after becoming officers. This study examined whether police officers and students enrolled in criminal justice/sociology classes held similar or different attitudes towards the Miranda warnings. The findings suggested that in some ways, the two groups perceived the warnings in dramatically different ways, while in other ways their differences were simply a matter of degree. Implications are provided. 相似文献
8.
Ellen K. Marshall Ph.D. 《Journal of Police and Criminal Psychology》2006,21(1):62-71
The present study measured the existence of traumatic stress symptomatology as reported by certified law enforcement officers
within the State of Delaware. A questionnaire was devised which documented age, sex, race, education, years of service, marital
status, children, rank, position, and shift work. The questionnaire was divided into parts which assessed the exposure and
the frequency of specific traumatic incidents experienced in the line of duty, and the frequency of experienced traumatic
symptomatology criteria: re-experiencing, numbing, and arousal. 相似文献
9.
10.
This study aimed to expand the scope of previous research by assessing the effectiveness of soot-removal techniques on glass from petrol-bomb debris using methods of 1% and 2% sodium hydroxide (NaOH) solutions, ultrasonic bath and vacuum suction. Of particular interest were the 1% and 2% NaOH solutions applied to the soot-covered surfaces. Petrol bombs containing petrol or a 50:50 mix of petrol and motor oil were exploded and the debris was collected for analysis. Favourable results were found to varying degrees using each of the soot-removal methods with the 1% and 2% NaOH wash solutions, being the most useful. The 2% NaOH solution also proved successful as a soak to loosen and remove heavy contamination of soot and accelerants without damaging the finger mark beneath. This study also found that recovery of finger marks in blood from beneath soot using the 2% NaOH solution was possible. Finger marks were also applied to glass bottles with plastic adhesive labels, and providing the fire damage is not too great marks were also retrievable. Results from this study lead to the conclusion that the NaOH wash solution is ideally suited for soot removal to reveal latent and blood-contaminated marks both within the laboratory and at crime scenes. 相似文献