全文获取类型
收费全文 | 2302篇 |
免费 | 139篇 |
专业分类
各国政治 | 205篇 |
工人农民 | 134篇 |
世界政治 | 266篇 |
外交国际关系 | 161篇 |
法律 | 1203篇 |
中国共产党 | 1篇 |
中国政治 | 9篇 |
政治理论 | 441篇 |
综合类 | 21篇 |
出版年
2023年 | 33篇 |
2022年 | 19篇 |
2021年 | 46篇 |
2020年 | 78篇 |
2019年 | 106篇 |
2018年 | 139篇 |
2017年 | 151篇 |
2016年 | 156篇 |
2015年 | 99篇 |
2014年 | 127篇 |
2013年 | 389篇 |
2012年 | 120篇 |
2011年 | 97篇 |
2010年 | 70篇 |
2009年 | 48篇 |
2008年 | 82篇 |
2007年 | 91篇 |
2006年 | 69篇 |
2005年 | 57篇 |
2004年 | 80篇 |
2003年 | 53篇 |
2002年 | 41篇 |
2001年 | 42篇 |
2000年 | 41篇 |
1999年 | 21篇 |
1998年 | 18篇 |
1997年 | 14篇 |
1996年 | 6篇 |
1995年 | 15篇 |
1994年 | 7篇 |
1993年 | 10篇 |
1992年 | 8篇 |
1991年 | 11篇 |
1990年 | 7篇 |
1989年 | 6篇 |
1988年 | 4篇 |
1987年 | 8篇 |
1986年 | 4篇 |
1985年 | 8篇 |
1984年 | 6篇 |
1982年 | 5篇 |
1977年 | 3篇 |
1975年 | 3篇 |
1974年 | 4篇 |
1972年 | 6篇 |
1967年 | 6篇 |
1966年 | 2篇 |
1965年 | 3篇 |
1964年 | 2篇 |
1963年 | 2篇 |
排序方式: 共有2441条查询结果,搜索用时 15 毫秒
831.
832.
Néstor A. Perlaza M.Sc 《Journal of forensic sciences》2014,59(5):1330-1332
Sex estimation in human skeletal remains when using the cranium through traditional methods is a fundamental pillar in human identification; however, it may be possible to incur in a margin of error due because of the state of preservation in incomplete or fragmented remains. The aim of this investigation was sex estimation through the geometric morphometric analysis of the frontal bone. The sample employed 60 lateral radiographs of adult subjects of both sexes (30 males and 30 females), aged between 18 and 40 years, with mean age for males of 28 ± 4 and 30 ± 6 years for females. Thin‐plate splines evidenced strong expansion of the glabellar region in males and contraction in females. No significant differences were found between sexes with respect to size. The findings suggest differences in shape and size in the glabellar region, besides reaffirming the use of geometric morphometrics as a quantitative method in sex estimation. 相似文献
833.
Frédéric Savall M.D. Fabrice Dedouit M.D. Ph.D. Marie‐Dominique Piercecchi‐Marti M.D. Ph.D. Georges Leonetti M.D. Ph.D. Daniel Rougé M.D. Ph.D. Norbert Telmon M.D. Ph.D. 《Journal of forensic sciences》2014,59(5):1423-1426
A 58‐year‐old man died suddenly in Madagascar and poisoning was suspected. The body was embalmed after death and the general state of preservation was good. We found a major aortic dissection with a large false lumen from the aortic root to the common iliac arteries and a hemopericardium with formalinized blood clot. The intimal tear was on the ascending aorta, and an intramural hemorrhage was noted at the right coronary artery, attesting to a retrograde dissection. Microscopic studies confirmed aortic dissection with extensive intramural hemorrhage and also confirmed the retrograde dissection to the right coronary artery with a reduction of 90% of the true lumen. Classically, aortic dissection occurs in individuals with hypertension and individuals with genetic disorders of collagen formation. The diagnosis is often first established at the postmortem examination. Aortic dissection is therefore dealt with largely in necropsy studies. The usual cause of death is rupture into the pericardial sac. One case of bloodless dissection has been reported but the sudden death was explained by acute myocardial ischemia secondary to dissection of the left coronary artery. In our case, we found major hemopericardium and also intramural hemorrhage at the right coronary artery. We were able to make the diagnosis of aortic dissection and exclude the suspicion of homicide 15 days after death and after embalming. 相似文献
834.
Antinea Menéndez Garmendia B.A. Jorge A. Gómez‐Valdés M.A. Francisco Hernández B.A. Julie K. Wesp M.A. Gabriela Sánchez‐Mejorada Ph.D. M.D. 《Journal of forensic sciences》2014,59(5):1325-1329
In this work, we present a measuring methodology for long bones of the limbs (humerus, femur, and tibia) of human corpses. Measurements of cadaveric height and long bone lengths were conducted on 72 corpses (20 females and 52 males) from the School of Medicine at the National Autonomous University of Mexico. Additionally, these measurements were compared with those taken from dry bones of a subsample of individuals. Our results show marginal differences (TEM% = 0.59) between cadaveric and dry bone measurements, resulting from different osteometric technical procedures. This note outlines the measuring methodology, which will be subsequently used to create regression formulas for stature estimation. 相似文献
835.
Pierre Guyomarc'h Ph.D. Bruno Dutailly M.Sc. Jérôme Charton M.Sc. Frédéric Santos M.Sc. Pascal Desbarats Ph.D. Hélène Coqueugniot Ph.D. 《Journal of forensic sciences》2014,59(6):1502-1516
This study presents Anthropological Facial Approximation in Three Dimensions (AFA3D), a new computerized method for estimating face shape based on computed tomography (CT) scans of 500 French individuals. Facial soft tissue depths are estimated based on age, sex, corpulence, and craniometrics, and projected using reference planes to obtain the global facial appearance. Position and shape of the eyes, nose, mouth, and ears are inferred from cranial landmarks through geometric morphometrics. The 100 estimated cutaneous landmarks are then used to warp a generic face to the target facial approximation. A validation by re‐sampling on a subsample demonstrated an average accuracy of c. 4 mm for the overall face. The resulting approximation is an objective probable facial shape, but is also synthetic (i.e., without texture), and therefore needs to be enhanced artistically prior to its use in forensic cases. AFA3D, integrated in the TIVMI software, is available freely for further testing. 相似文献
836.
Yves Schuliar M.D. Ph.D. Stéphane Chapenoire M.D. Ph.D. Alain Miras M.D. Ph.D. Benjamin Contrand M.Sc. Emmanuel Lagarde Ph.D. 《Journal of forensic sciences》2014,59(5):1263-1270
For investigation of air disasters, crash reconstruction is obtained using data from flight recorders, physical evidence from the site, and injuries patterns of the victims. This article describes a new software, Crash Injury Pattern Assessment Tool (CIPAT), to code and analyze injuries. The coding system was derived from the Abbreviated Injury Score (AIS). Scores were created corresponding to the amount of energy required causing the trauma (ER), and the software was developed to compute summary variables related to the position (assigned seat) of victims. A dataset was built from the postmortem examination of 154/228 victims of the Air France disaster (June 2009), recovered from the Atlantic Ocean after a complex and difficult task at a depth of 12790 ft. The use of CIPAT allowed to precise cause and circumstances of deaths and confirmed major dynamics parameters of the crash event established by the French Civil Aviation Safety Investigation Authority. 相似文献
837.
Isabelle Ratié 《Journal of Indian Philosophy》2014,42(2-3):353-375
Modern scholarship has often wondered whether Indian Buddhist idealism is primarily epistemic or metaphysical: does this idealism amount to a kind of transcendental scepticism according to which we cannot decide whether objects exist or not outside of consciousness because we can have no epistemic access whatsoever to these objects? Or is it rather ontologically committed, i.e., does it consist in denying the very existence of the external world? One could deem the question anachronistic and suspect that with such an inquiry we project onto Ancient and Medieval India a distinction that remains profoundly alien to it, were it not for a few preserved texts where Indian authors themselves distinguish between two such kinds of idealism within the Buddhist philosophical tradition. As already pointed out by Dan Arnold, this is the case in the commentary by Manorathanandin on Dharmakīrti’s Pramā?avārttika; but the difference between two varieties of Buddhist idealism is also alluded to in Hindu sources, both Mīmā?saka and ?aiva. The present article offers a new analysis of Manorathanandin’s short and somewhat ambiguous distinction, and it examines in this connection some important remarks found in the works of the ?aiva nondualists Utpaladeva (c. 925–975) and Abhinavagupta (c. 975–1025). It shows that according to these authors, in fact the epistemic version of the Buddhist argument in favour of idealism is already metaphysical insofar as it necessarily involves a denial of the existence of the external world, and it attempts to assess the faithfulness of this ?aiva interpretation to its Buddhist sources. 相似文献
838.
In this article we define and estimate empirical models to study the determinants of adoption of performance indicators by Mexican municipalities. Building upon previous studies, we prove whether the adoption decision depends on the locality size, variables related to resources, and the political/cultural differences. We implement the empirical models using the data from 300 municipalities for the year 2000. Unlike related literature that relies on surveys applied to local officials, our data from independent and dependent variables were obtained from different sources in order to avoid common-source bias. The estimated logit and probit models confirm the hypotheses. 相似文献
839.
Over the last 15 years there have been many experiments with joined-up (also known as whole of) government practices, aimed at horizontal coordination to overcome the fragmentation of vertical governmental structures due to departmentalism and New Public Management. These practices were initiated to address wicked problems and to better interact with society at large. Now that there are signs that the rhetoric of joined-up government is winding down and many joined-up government developments are being dismantled, it is time to evaluate this approach. This is especially appropriate as some suggest that the overall impact of these developments may be relatively small, despite (overly) optimistic claims made in the past. In this article we take experiences with joined-up government in the Netherlands as the departing point for a critical discussion of this approach. By comparing the Dutch experiences with those in other countries, we will draw a picture of the challenges and dilemmas of horizontal coordination in the vertical world of government. 相似文献
840.