全文获取类型
收费全文 | 1141篇 |
免费 | 57篇 |
专业分类
各国政治 | 66篇 |
工人农民 | 72篇 |
世界政治 | 94篇 |
外交国际关系 | 113篇 |
法律 | 605篇 |
中国政治 | 12篇 |
政治理论 | 231篇 |
综合类 | 5篇 |
出版年
2023年 | 15篇 |
2022年 | 4篇 |
2021年 | 13篇 |
2020年 | 29篇 |
2019年 | 42篇 |
2018年 | 53篇 |
2017年 | 59篇 |
2016年 | 72篇 |
2015年 | 41篇 |
2014年 | 33篇 |
2013年 | 195篇 |
2012年 | 38篇 |
2011年 | 45篇 |
2010年 | 21篇 |
2009年 | 36篇 |
2008年 | 31篇 |
2007年 | 42篇 |
2006年 | 26篇 |
2005年 | 29篇 |
2004年 | 32篇 |
2003年 | 15篇 |
2002年 | 22篇 |
2001年 | 21篇 |
2000年 | 30篇 |
1999年 | 21篇 |
1998年 | 18篇 |
1997年 | 18篇 |
1996年 | 13篇 |
1995年 | 13篇 |
1994年 | 12篇 |
1993年 | 6篇 |
1992年 | 14篇 |
1991年 | 14篇 |
1990年 | 10篇 |
1989年 | 9篇 |
1988年 | 8篇 |
1987年 | 11篇 |
1986年 | 11篇 |
1985年 | 9篇 |
1984年 | 9篇 |
1983年 | 13篇 |
1982年 | 5篇 |
1981年 | 7篇 |
1980年 | 5篇 |
1979年 | 6篇 |
1978年 | 4篇 |
1974年 | 3篇 |
1973年 | 3篇 |
1970年 | 2篇 |
1967年 | 3篇 |
排序方式: 共有1198条查询结果,搜索用时 93 毫秒
91.
92.
93.
External beam proton-induced X-ray emission (PIXE) analysis has been used to verify the presence of lead in the finger bone of a murder victim. The deceased, who had been buried several years, was known to have suffered a bullet wound to his right hand several years before death. X-ray radiographs of the right second proximal phalanx revealed the possible presence of metal fragments below the surface of the bone. To verify the presence of lead in a nondestructive manner, the bone was scanned with a 1.5-MeV proton beam. PIXE analysis showed that lead was present only in the vicinity of the fragments previously detected in the radiographs. A study of gunshot residue in bone shows that the distribution of lead around the bullet hole is independent of the firing distance for distances greater than 0.6 m. 相似文献
94.
95.
This paper is based on a study of apprenticeship, a long renowned institution for transferring technical know-how. Case studies
of apprenticeship led us to define know-how as: a commercially viable integration of proficient technique gained by practicing
the work process of an expert and contextual knowledge gained by observing and questioning other workers. One implication
of this definition is its stress on know-how transfer teams that consist of work process designers, practice tutors, and transfer
manager. A second implication calls for explicit planning of know-how adaptation when new technology makes work processes
obsolete. A final implication for researchers in technology transfer stresses the integration of individual know-how into
community systems that put technology to work. 相似文献
96.
Lesley R. Steptoe William R. Lindsay Lesley Murphy Steven J. Young 《Legal and Criminological Psychology》2008,13(2):309-321
Background. There have been a number of developments in the assessment of dynamic risk in the criminological literature. The dynamic risk assessment and management system (DRAMS) has been developed to facilitate the measurement of dynamic factors of risk for offenders with intellectual disability. Method. The study was designed to assess the construct validity, reliability and predictive utility of the DRAMS in 23 male forensic patients in a high secure setting. Predictions were made against independently collected incident data. Concurrent validity was assessed against the Ward Anger Rating Scale (WARS). Results. A reformulation of the individual section variables according to convergent and discriminant correlational analysis revealed Cronbach's alpha levels of >.8 for all sections apart from mood (alpha .750) and items retained to facilitate clinical information (alpha ?.017). Two hundred pairs of WARS and DRAMS assessments revealed orderly sectional correlations. The sections of mood, antisocial behaviour, and intolerance/agreeableness predicted incidents with a medium effect size as did total DRAMS score. There were highly significant differences between assessments taken 1 or 2 days prior to an incident and control assessments conducted at least 7 days from an incident. Conclusions. The reformulated DRAMS has good construct and concurrent validity. It appears to be a reliable assessment tool and informs on risk levels relating to stable and acute proximal factors. It appears as an important addition to the utility of risk assessments for this population. 相似文献
97.
Among the known causes of aircraft disasters, sabotage is perhaps the most terrifying and difficult to comprehend. Bombs have been exploded in at least 34 commercial aircraft, with the resultant loss of more than 300 lives. Motives for these acts include profit, the deaths of certain persons, and politics. On November 1, 1955, United Airlines Flight 629, bound to Denver-Portland, exploded and burned in flight near Longmont, Colorado, a few minutes after takeoff, with the loss of all 44 on board. Investigation revealed that the plane had been destroyed by the explosion of a bomb that had been placed in the rear luggage hold in Denver. Twelve days after the disaster, John Gilbert Graham, the son of one of the female passengers, was arrested and charged with murder. He reportedly admitted placing a time bomb on board the aircraft, apparently in order to collect $37,500.00 in life insurance that he had taken on his mother's life. Though he soon recanted, he was convicted of murder and was executed. The potential for additional such crimes remains. 相似文献
98.
Francis Edward Devine 《Journal of Police and Criminal Psychology》1986,2(1):44-51
This article contrasts the traditional English prosecutorial system, and its underlying values, with the new Crown Prosecution Service and the related values which have emerged from five years of official study and planning of prosecutorial reform. The traditional system reflected the English ideal of the amateur generalist. Under this system the police, acting as citizens, undertook most prosecutions, hiring legal assistance as needed. Ower the last twenty years, about three-quarters of the English police forces set up prosecuting solicitors departments. While these institutions give professional legal assistance to many police, they were purely local arrangements without statutory basis and legally similar to the traditional ad hoc arrangements. In 1986 the Crown Prosecution Service will be initiated. This is the product of a process of development which includes a Royal Commission, two governmental working parties, a white paper, a bill, and a managerial study. The result is a hierarchical structure of legal professionals independent of the police who will handle virtually all prosecutions. This prosecutorial structure exhibits the characteristics and values of modern rationalistic bureaucracy described by Max Weber. The adoption of these values in English criminal justice indicates the likelihood of change in other aspects of the system which rest on the conflicting traditional values. 相似文献
99.
Ryan Shaffer 《Intelligence & National Security》2019,34(5):727-742
This article examines India’s historical efforts to spy inside Pakistan from the mid-1960s to the early 1970s. It draws from memoirs of notable Indian spies who were jailed for espionage in Pakistan and spy ‘fiction’ written by former Indian intelligence and military officers who allege their writing is based on actual cases. The article highlights commonalities among Indian spies using the words of Indian officers to better understand human intelligence efforts inside Pakistan. It finds that Indian spies in these books have initially been Hindus or from multi-religious families, from the Indian-Pakistan border and have been poorly treated by the Indian government and its intelligence services. 相似文献
100.
Ryan Hübert 《American journal of political science》2019,63(3):706-718
How much do trial judges influence the law in the United States? I analyze a model of adjudication by a trial judge who engages in fact finding before deciding a case, but whose decision may be reversed. The model makes three broad points. First, it provides an informational rationale for ex post deference to biased trial judges that does not require an ex ante commitment by an appellate court to a standard of review. Second, it shows how procedural discretion can bring biased trial judges' rulings closer to appellate doctrine despite enabling trial judges to “get their way” more often. Third, de facto law as represented by trial judges' case‐by‐case adjudication will differ substantially from de jure law. As long as there are not too many extremist trial judges, de facto law will reflect the predispositions of trial judges, not legal doctrine. 相似文献