全文获取类型
收费全文 | 542篇 |
免费 | 34篇 |
专业分类
各国政治 | 16篇 |
工人农民 | 65篇 |
世界政治 | 95篇 |
外交国际关系 | 11篇 |
法律 | 265篇 |
中国政治 | 10篇 |
政治理论 | 104篇 |
综合类 | 10篇 |
出版年
2024年 | 1篇 |
2023年 | 6篇 |
2022年 | 3篇 |
2021年 | 8篇 |
2020年 | 16篇 |
2019年 | 18篇 |
2018年 | 28篇 |
2017年 | 30篇 |
2016年 | 16篇 |
2015年 | 22篇 |
2014年 | 18篇 |
2013年 | 55篇 |
2012年 | 30篇 |
2011年 | 19篇 |
2010年 | 13篇 |
2009年 | 12篇 |
2008年 | 34篇 |
2007年 | 40篇 |
2006年 | 28篇 |
2005年 | 34篇 |
2004年 | 21篇 |
2003年 | 21篇 |
2002年 | 16篇 |
2001年 | 7篇 |
2000年 | 5篇 |
1999年 | 3篇 |
1998年 | 8篇 |
1997年 | 3篇 |
1996年 | 3篇 |
1995年 | 3篇 |
1994年 | 3篇 |
1993年 | 7篇 |
1992年 | 5篇 |
1991年 | 4篇 |
1990年 | 6篇 |
1989年 | 1篇 |
1988年 | 4篇 |
1987年 | 1篇 |
1986年 | 2篇 |
1985年 | 8篇 |
1984年 | 3篇 |
1982年 | 5篇 |
1981年 | 3篇 |
1977年 | 1篇 |
1976年 | 1篇 |
1975年 | 1篇 |
排序方式: 共有576条查询结果,搜索用时 15 毫秒
131.
132.
Eoghan Casey Adrien Cheval Jong Yeon Lee David Oxley Yong Jun Song 《Digital Investigation》2011,8(1):37-47
The emergence of webOS on Palm devices has created new challenges and opportunities for digital investigators. With the purchase of Palm by Hewlett Packard, there are plans to use webOS on an increasing number and variety of computer systems. These devices can store substantial amounts of information relevant to an investigation, including digital photographs, videos, call logs, SMS/MMS messages, e-mail, remnants of Web browsing and much more. Although some files can be obtained from such devices with relative ease, the majority of information of forensic interest is stored in databases on a system partition that many mobile forensic tools do not acquire. This paper provides a methodology for acquiring and examining forensic duplicates of user and system partitions from a device running webOS. The primary sources of digital evidence on these devices are covered with illustrative examples. In addition, the recovery of deleted items from various areas on webOS devices is discussed. 相似文献
133.
All industrialized countries are grappling with a common problem—how to provide assistance of various kinds to their rapidly aging populations. The problem for countries searching for models of efficient and high-quality long-term care (LTC) policies is that fewer than a dozen countries have government-organized, formal LTC policies. Relatively new surveys focused on the elderly populations of about 25 countries could become the basis for research on which LTC policy design choices have desired outcomes for individuals and society and might be replicable in other countries. As in earlier decades when U.S. researchers created the Current Population Survey (CPS) modules and the Survey of Income and Program Participation to answer policy questions, researchers and policy analysts are now at a point where a concerted effort is needed to generate questions that international comparative research on LTC could answer as well as the data needed to address the questions. 相似文献
134.
Downey LA King R Papafotiou K Swann P Ogden E Stough C 《Forensic science international》2012,220(1-3):e33-e36
dl-3,4-methylenedioxymethamphetamine (MDMA) and methamphetamine are commonly used illicit drugs that are thought to impair driving ability. The Standardized Field Sobriety Tests (SFSTs) are utilized widely to detect impairment associated with drugs other than alcohol in drivers, although limited evidence concerning MDMA and methamphetamine consumption on SFST performance exists. The aim of this study was to evaluate whether the SFSTs were a sensitive measure for identifying the presence of the specific isomer d-methamphetamine and MDMA. In a double-blind, within-subject, counter-balanced and placebo-controlled study, 58 healthy and abstinent recreational drugs users were administered three treatments: 100mg of MDMA, 0.42 mg/kg d-methamphetamine, and placebo. For each condition the SFSTs were administered at 4 and 25 h post treatment. d-methamphetamine was not found to significantly impair SFST performance unlike MDMA, which significantly impaired SFST performance in comparison to placebo with 22% of the sample failing the test at the 4h testing time-point. No differences were observed at the 25 h testing time-point for any of the conditions. It was concluded that the SFSTs are not efficient in identifying the presence of low level d-methamphetamine, and are significantly better at detecting the presence of MDMA at the levels assessed. 相似文献
135.
Molina DK Clarkson A Farley KL Farley NJ 《The American journal of forensic medicine and pathology》2012,33(4):344-348
ABSTRACT: It is essential that clinical physicians, medical personnel, medical examiners, and law enforcement agencies understand the types of injuries seen and demographics of children affected by intentional blunt force as this understanding can be crucial to the death and/or criminal investigations. An understanding of the injuries can also assist in drawing conclusions regarding how those injuries could have been sustained. This study discusses the types and patterns of injuries seen in blunt force homicides in children younger than 6 years. The study found that male infants are more often intentionally injured than are female infants and that fatal head injuries most frequently occur in the first year of life, whereas most fatal thoracoabdominal injuries occur in the first 3 years of life. In children with head injuries, subdural hemorrhage was the most common finding, followed by subarachnoid hemorrhage. In 2.5% of deaths due to head injury, concurrent neck injury was seen, a percentage far lower than previous literature would suggest if shaking was the primary mechanism of injury. Twelve legal confessions were also reviewed, none of which disclosed a pure mechanism of shaking the infant. 相似文献
136.
In this proof-of-concept study, high-resolution melt curve (HRMC) analysis was investigated as a postquantification screening tool to discriminate human CSF1PO and THO1 genotypes amplified with mini-STR primers in the presence of SYBR Green or LCGreen Plus dyes. A total of 12 CSF1PO and 11 HUMTHO1 genotypes were analyzed on the LightScanner HR96 and LS-32 systems and were correctly differentiated based upon their respective melt profiles. Short STR amplicon melt curves were affected by repeat number, and single-source and mixed DNA samples were additionally differentiated by the formation of heteroduplexes. Melting curves were shown to be unique and reproducible from DNA quantities ranging from 20 to 0.4 ng and distinguished identical from nonidentical genotypes from DNA derived from different biological fluids and compromised samples. Thus, a method is described which can assess both the quantity and the possible probative value of samples without full genotyping. 相似文献
137.
This article examines of the life of Nancy Verna Power, an Aboriginal woman born in north-west Queensland in 1910. Nancy Power was given an exemption certificate in 1933. The certificate released her from control by the Department of Native Affairs in 1933 and led her to remain silent about her identity in the later years of her life. This article examines Nancy's early life as a domestic servant, when she was under the control of the Chief Protector, the superintendent of Purga Mission and other government administrators. Using Phillips and Bunda's principles of “storying” each author describes a period of Nancy's life with an eye to their own connection to, and ability to tell, the story. Judi Wickes, Nancy's niece, tells her story from 1910 to 1924 and from 1934 to 1950 using family records and her own memories. Katherine Ellinghaus, a non-Indigenous historian, uses the official written records created by the Queensland government to describe Nancy's life between 1930 and 1934. 相似文献
138.
Action research applies knowledge and research findings to practical problems in order to strengthen the capability of the work unit, to contribute to the personal growth and satisfaction of organization members, and to improve theory. An action research project studying acute care teams at a state residential psychiatric facility found that foreign-born physicians chair high-performing teams. This unexpected result strengthens theories of diversity, status inconsistency, and project team effectiveness. 相似文献
139.
M. Katherine Maeve 《Crime, Law and Social Change》1999,31(1):49-71
Women in prison have been identified as one of the most vulnerable groups of women in society. This study examined the social construction of health through weekly interviews with 20 incarcerated women over 15 months. The study was grounded within a critical hermeneutic context using interpretive methods for data analysis. Adjudicated health reflects the social construction of health for women prior to and during imprisonment, and is dually grounded in protection and punishment — a construction in direct apposition to the department of correction's conceptualization of health. Implications for the health of women during imprisonment and post-release are discussed. This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献
140.