全文获取类型
收费全文 | 700篇 |
免费 | 49篇 |
专业分类
各国政治 | 71篇 |
工人农民 | 22篇 |
世界政治 | 87篇 |
外交国际关系 | 33篇 |
法律 | 377篇 |
中国政治 | 5篇 |
政治理论 | 149篇 |
综合类 | 5篇 |
出版年
2024年 | 1篇 |
2023年 | 13篇 |
2022年 | 1篇 |
2021年 | 11篇 |
2020年 | 21篇 |
2019年 | 29篇 |
2018年 | 21篇 |
2017年 | 39篇 |
2016年 | 40篇 |
2015年 | 29篇 |
2014年 | 37篇 |
2013年 | 139篇 |
2012年 | 44篇 |
2011年 | 27篇 |
2010年 | 15篇 |
2009年 | 11篇 |
2008年 | 30篇 |
2007年 | 31篇 |
2006年 | 24篇 |
2005年 | 22篇 |
2004年 | 27篇 |
2003年 | 19篇 |
2002年 | 16篇 |
2001年 | 14篇 |
2000年 | 20篇 |
1999年 | 7篇 |
1998年 | 7篇 |
1997年 | 7篇 |
1996年 | 6篇 |
1995年 | 4篇 |
1994年 | 3篇 |
1993年 | 4篇 |
1992年 | 3篇 |
1991年 | 2篇 |
1990年 | 1篇 |
1989年 | 2篇 |
1988年 | 1篇 |
1987年 | 2篇 |
1986年 | 2篇 |
1984年 | 1篇 |
1983年 | 3篇 |
1981年 | 2篇 |
1978年 | 2篇 |
1975年 | 2篇 |
1973年 | 2篇 |
1970年 | 1篇 |
1968年 | 1篇 |
1965年 | 2篇 |
1963年 | 1篇 |
排序方式: 共有749条查询结果,搜索用时 15 毫秒
541.
Despite there having been a positive context for initiating health care reforms in Portugal in the past fifteen years (accompanied by political consensus on the nature of the structural problems within the health care system), there has been a lack of reform initiatives. We use a process-based framework to show how institutional arrangements have influenced Portuguese health care reform. Evidence is presented to demonstrate inertia and nondecision making in three critical areas of Portuguese health policy: clarifying the public-private mix in coverage and provision, creating financial incentives and motivation for human resources, and introducing changes in the pharmaceutical market. Several factors seem to explain these processes, namely, problems in the balance of power within the political system, which have contributed to a lack of proper policy discussion; a lack of pluralism in the formation of health care policies (with low participation from citizens and high mobilization among structural interest groups); and the low priority of health care in public sector reforms. Portuguese politicians should be aware of the pitfalls of the current political system that constrain participatory arrangements and pluralism in policy making. In order to pursue health care reform, future governments will need to counterbalance the strong influence of structural interest groups. 相似文献
542.
543.
POPULATION: A total of 71 Jewish individuals obtained from the collection of The National Laboratory for the Genetics of Israeli Populations at Tel-Aviv University: 14 Ashkenazi, 21 Sephardic (from Turkey), 23 North African (from Morocco, Libya and Tunicia) and 13 Oriental (from Iraq and Iran). 相似文献
544.
Rougé-Maillart C Telmon N Rissech C Malgosa A Rougé D 《Journal of forensic sciences》2004,49(2):208-214
In forensic anthropological analysis, the pelvis is of particular interest as it is often a comparatively well-preserved part of the skeleton. This study in age determination uses the acetabulum, the central element of the pelvis, as a complement to the examination of the auricular surface. The test sample consisted of 30 individuals. First, the authors studied the auricular surface using the Lovejoy criteria. Second, they isolated four criteria based on chronological changes in the acetabulum. Third, they conducted an evaluation of each of these variables. The study examines the correlation between these criteria and the age of the individuals. A significant correlation was found between the acetabular criteria and age, and between the acetabular criteria and the Lovejoy criteria of the auricular surface. For forensic purposes, the acetabulum is an effective predictor in the determination of age. This newly proposed method explores the same criteria of ageing as the Lovejoy method. The combination of the two methods produces relatively consistent results in the estimation of age. 相似文献
545.
In this paper we show that the success of the EU Regional Policy, in terms of boosting growth in objective 1 regions, will mean a big opportunity for Central and Eastern European Countries (CEECs) and hence the increases in competition arising from an enlarged European market combined with a suitable regional development policy should in the future boost the growth of those countries. In the last part of the paper we made a simulation for the funding envelope from 2007, based on the 2000–2006 budget. We show that the figures of the Agenda 2000 provide enough financial support for 90% of the total CEEC population and for 75% of current objective 1 population. 相似文献
546.
547.
Fernández-Mestre M Alfonso-Sánchez MA Gendzekhadze K Layrisse Z Peña JA 《Journal of forensic sciences》2006,51(3):703-704
POPULATIONS: Whole blood samples from 74 unrelated healthy individuals were collected. The donors' sample included Venezuelan mestizos from various regions of the country, but mostly from the resident population of Caracas City. A Venezuelan mestizo is the offspring of a mating between a native Venezuelan and a person born in Europe, mainly in Spain. 相似文献
548.
Crespillo M Paredes MR Prieto L Montesino M Salas A Albarran C Alvarez-Iglesias V Amorin A Berniell-Lee G Brehm A Carril JC Corach D Cuevas N Di Lonardo AM Doutremepuich C Espinheira RM Espinoza M Gómez F González A Hernández A Hidalgo M Jimenez M Leite FP López AM López-Soto M Lorente JA Pagano S Palacio AM Pestano JJ Pinheiro MF Raimondi E Ramón MM Tovar F Vidal-Rioja L Vide MC Whittle MR Yunis JJ Garcia-Hirschfel J 《Forensic science international》2006,160(2-3):157-167
We report here a review of the seventh mitochondrial DNA (mtDNA) exercise undertaken by the Spanish and Portuguese working group (GEP) of the International Society for Forensic Genetics (ISFG) corresponding to the period 2003-2004. Five reference bloodstains from five donors (M1-M5), a mixed stain of saliva and semen (M6), and a hair sample (M7) were submitted to each participating laboratory for nuclear DNA (nDNA; autosomal STR and Y-STR) and mtDNA analysis. Laboratories were asked to investigate the contributors of samples M6 and M7 among the reference donors (M1-M5). A total of 34 laboratories reported total or partial mtDNA sequence data from both, the reference bloodstains (M1-M5) and the hair sample (M7) concluding a match between mtDNA profiles of M5 and M7. Autosomal STR and Y-STR profiling was the preferred strategy to investigate the contributors of the semen/saliva mixture (M6). Nuclear DNA profiles were consistent with a mixture of saliva from the donor (female) of M4 and semen from donor M5, being the semen (XY) profile the dominant component of the mixture. Strikingly, and in contradiction to the nuclear DNA analysis, mtDNA sequencing results yield a more simple result: only the saliva contribution (M4) was detected, either after preferential lysis or after complete DNA digestion. Some labs provided with several explanations for this finding and carried out additional experiments to explain this apparent contradictory result. The results pointed to the existence of different relative amounts of nuclear and mtDNAs in saliva and semen. We conclude that this circumstance could strongly influence the interpretation of the mtDNA evidence in unbalanced mixtures and in consequence lead to false exclusions. During the GEP-ISFG annual conference a validation study was planned to progress in the interpretation of mtDNA from different mixtures. 相似文献
549.
550.