全文获取类型
收费全文 | 11671篇 |
免费 | 1186篇 |
专业分类
各国政治 | 408篇 |
工人农民 | 376篇 |
世界政治 | 839篇 |
外交国际关系 | 282篇 |
法律 | 8989篇 |
中国共产党 | 1篇 |
中国政治 | 82篇 |
政治理论 | 1807篇 |
综合类 | 73篇 |
出版年
2020年 | 338篇 |
2019年 | 339篇 |
2018年 | 385篇 |
2017年 | 446篇 |
2016年 | 460篇 |
2015年 | 427篇 |
2014年 | 417篇 |
2013年 | 1165篇 |
2012年 | 268篇 |
2011年 | 358篇 |
2010年 | 531篇 |
2009年 | 484篇 |
2008年 | 275篇 |
2007年 | 246篇 |
2006年 | 355篇 |
2005年 | 239篇 |
2004年 | 228篇 |
2003年 | 223篇 |
2002年 | 202篇 |
2001年 | 439篇 |
2000年 | 345篇 |
1999年 | 296篇 |
1998年 | 143篇 |
1997年 | 128篇 |
1996年 | 103篇 |
1995年 | 131篇 |
1994年 | 141篇 |
1993年 | 115篇 |
1992年 | 216篇 |
1991年 | 235篇 |
1990年 | 217篇 |
1989年 | 230篇 |
1988年 | 208篇 |
1987年 | 178篇 |
1986年 | 207篇 |
1985年 | 225篇 |
1984年 | 220篇 |
1983年 | 185篇 |
1982年 | 147篇 |
1981年 | 131篇 |
1980年 | 129篇 |
1979年 | 150篇 |
1978年 | 92篇 |
1977年 | 79篇 |
1976年 | 67篇 |
1975年 | 71篇 |
1974年 | 77篇 |
1973年 | 64篇 |
1972年 | 55篇 |
1971年 | 56篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
871.
William U. Weiss Ph.D. Gerald Serafino Ph.D. Ann Serafino Walt Willson Steve Knoll 《Journal of Police and Criminal Psychology》1998,13(1):40-44
The MMPI-2 is one of the most frequently employed instruments for the selection of police officers. Serafino and Serafino
(1997) collected data which involved information about employment continuation and ratings by supervisors of 32 police officers
who had recently been hired and who had been given the MMPI-2 during the hiring process. In this study, the Paranoia Obvious
(Pa) and Paranoia Subtle (Ps) scales proved to be the significant. Pa Subtle correlated with removal whereas Pa Obvious correlated
with rating. Higher scores on Pa Subtle correlated significantly with being removed from the job, whereas low scores on the
Pa Obvious correlated with higher ratings of performance by supervisors. Discussion of the results involved the fact that
Subtle Pa scores would suggest paranoid tendencies not easily detected during the interview. Since most high Pa Obvious individuals
would have been eliminated in the hiring process, expression of this tendency was at a low level after being hired but if
present resulted in low ratings. Significant predictors were noted to be very much a function of the type of criterion variable
employed in the study. 相似文献
872.
Loreen Wolfer Ph.D. Thomas E. Baker M.S. M.E.D. 《Journal of Police and Criminal Psychology》1998,13(2):55-66
Police leadership is increasingly dependent on community oriented policing (COPS) federal grants because of diminishing financial
resources. This paper demonstrates the importance of excellent police grantsmanship skills while simultaneously providing
theoretical and concrete steps for achieving a successful grant package. Furthermore, a case study example is presented where
COPS grants and federal funding assisted in the acquisition of community-oriented and problem-solving strategic objectives. 相似文献
873.
874.
875.
D M Fox 《Journal of health politics, policy and law》1991,16(4):719-746
Hospital planning in New York has been since the 1930s an intensely political process with high stakes. The leaders of Blue Cross and their allies used the hospital planning process in the city and the state as a means to extend and protect corporate authority in what they took to be the public interest. When Blue Cross was established in the 1930s, its leaders used the mechanisms of formal planning as part of their solution to pressing problems in the organization and distribution of hospital services. In the decade after World War II, Blue Cross had an immense impact on hospital planning in New York as a result of its growth and its underwriting policies. Conflicts between Blue Cross and state regulators beginning in the 1950s led to a new formulation of the politics of planning. Blue Cross became a partner with the state in regulating hospitals. The state and Blue Cross behaved as co-regulators until the 1980s. The interpretation in this paper revises the earlier accounts of health politics in New York by Law (1976) and Alford (1975). 相似文献
876.
877.
The increasing number of discussions on the influence of toxic environmental factors, including SIDS, prompted systematic postmortem chemical-toxicological investigations to be carried out on 54 SIDS cases and 2 control cases of the same age group. Tissue levels of arsenic, lead, cadmium, mercury, and pentachlorphenol, as well as other organic noxious agents, were measured in several organs. In addition, the COHb concentrations were determined. In spite of the widely scattered values, the extreme levels measured and the arithmetic means and median averages of As, Pb, Cd, Hg, PCP, and COHb had no more range in concentrations than can be expected for toxic effects - according to present knowledge anyway. It was observed that infants from an urban environment showed no greater concentration of noxious agents than did infants from rural regions. There were also no differences between SIDS cases and the controls, nor was there a correlation between infections of the respiratory system that are often morphologically detected - including laryngitis - and higher concentrations of these agents in the organs of SIDS cases. 相似文献
878.
A fatality following ingestion of the tricyclic antidepressant imipramine (Novopramine), acetaminophen, and ethyl alcohol is described. Imipramine, desipramine, acetaminophen, and 2-hydroxyimipramine were quantitated by high performance liquid chromatography, and ethyl alcohol by gas liquid chromatography. Concentrations of imipramine, desipramine, 2-hydroxyimipramine, and acetaminophen were: in blood--9.0, 1.1, 3.9, and 11 mg/L; in urine--92, 14, and 42 mg/L (acetaminophen not quantitated in urine). Ethyl alcohol concentration in blood was less than 10 mg/dL and 105 mg/dL in the urine by headspace gas chromatography. These findings are compared to previous reports of imipramine-related fatalities. To our knowledge, this is the first fatality reported involving imipramine where analysis included quantitation of 2-hydroxyimipramine in blood and urine. 相似文献
879.
880.
Policy Considerations for States Supporting Stem Cell Research: Evidence from a Survey of Stem Cell Scientists 总被引:1,自引:0,他引:1
Aaron D. Levine 《Public administration review》2008,68(4):681-694
Five states now provide funding for stem cell research, and many states are developing or debating stem cell research policies. Despite this interest, little data exist to help policy makers design policies or forecast the impact of new legislation. This article reports novel data from two surveys: one directed at those most affected by these policies—stem cell scientists—and one at a group of biomedical researchers working in less contentious fields. These data identified relatively high mobility among stem cell scientists, particularly in states with restrictive policies, and a strong preference for states with permissive policies. These findings suggest that state-specific policies may prove to be effective recruiting tools. They also suggest specific recruitment strategies and highlight the importance of first-mover advantage as states compete for the same limited pool of mobile scientists. This research aims to provide a factual basis to support ongoing policy formulation in the area. 相似文献