全文获取类型
收费全文 | 1657篇 |
免费 | 42篇 |
专业分类
各国政治 | 58篇 |
工人农民 | 62篇 |
世界政治 | 65篇 |
外交国际关系 | 81篇 |
法律 | 949篇 |
中国共产党 | 41篇 |
中国政治 | 99篇 |
政治理论 | 130篇 |
综合类 | 214篇 |
出版年
2023年 | 4篇 |
2022年 | 13篇 |
2021年 | 22篇 |
2020年 | 27篇 |
2019年 | 26篇 |
2018年 | 25篇 |
2017年 | 31篇 |
2016年 | 37篇 |
2015年 | 23篇 |
2014年 | 43篇 |
2013年 | 106篇 |
2012年 | 51篇 |
2011年 | 72篇 |
2010年 | 65篇 |
2009年 | 78篇 |
2008年 | 81篇 |
2007年 | 73篇 |
2006年 | 78篇 |
2005年 | 71篇 |
2004年 | 65篇 |
2003年 | 61篇 |
2002年 | 50篇 |
2001年 | 119篇 |
2000年 | 71篇 |
1999年 | 74篇 |
1998年 | 36篇 |
1997年 | 4篇 |
1996年 | 4篇 |
1995年 | 8篇 |
1994年 | 5篇 |
1993年 | 7篇 |
1992年 | 21篇 |
1991年 | 18篇 |
1990年 | 41篇 |
1989年 | 28篇 |
1988年 | 29篇 |
1987年 | 23篇 |
1986年 | 16篇 |
1985年 | 13篇 |
1984年 | 8篇 |
1983年 | 9篇 |
1982年 | 12篇 |
1981年 | 8篇 |
1980年 | 4篇 |
1979年 | 11篇 |
1978年 | 7篇 |
1973年 | 2篇 |
1971年 | 4篇 |
1970年 | 3篇 |
1968年 | 2篇 |
排序方式: 共有1699条查询结果,搜索用时 31 毫秒
271.
Genetic variation at nine STR loci in populations from the Philippines and Thailand living in Taiwan
In order to apply a set of nine STR loci and the amelogenin locus in forensic testing, we have performed a population study on individuals from the Philippines and Thailand living in Taiwan (273 Philippine and 146 Thai individuals were typed by commercially available kits and an automated sequencer). A total of 73 alleles for all systems for both populations could be observed in these two populations. No new intermediate fragments were found. Allele frequencies showed no deviation from Hardy-Weinberg equilibrium. The mean exclusion power (MEP) ranged from 0.327 (TPOX) to 0.706 (FGA), the discriminating power (DP) ranged from 0.790 (TPOX) to 0.963 (FGA) for Philippinos, MEP ranged from 0.247 (TPOX) to 0.723 (FGA), DP ranged from 0.761 (TPOX) to 0.968 (FGA) for Thais, the combined MEP is > 0.9988 and the combined DP is > 0.9999999993 for both Philippinos and Thais. 相似文献
272.
273.
现行法律对市场投资者权益的保护依然停留在国家公法监管层面.从市场准入、市场监管到事后处罚,主要是依靠证券监督管理机关的行政手段.当市场投资者合法权益遭受侵权行为损害时,侵权者所承担的多是行政责任和刑事责任.这种公法意义上的责任承担方式貌似严苛,但却很难使投资者所遭受的实际损害得到有效弥补.证券监督管理机关所作出的行政处罚以及司法机关所作出的刑事处罚,使社会公共利益在一定程度上得以保全,但却导致投资者的民事权益被实质上排斥在法律救济之外.随着证券市场的不断发展、证券法制私法化倾向的日渐凸显,对投资者的民事权益予以全面保护的呼声愈发强烈.而若实现投资者民事权益的应有保护,证券集团诉讼应是证券民事赔偿救济的最优模式. 相似文献
274.
治国必先治党,治党务必从严.新的国内外环境对党的建设提出了新的要求.党的十九大指出,要把党的政治建设摆在首位.党的政治建设的关键就是要增强"四个意识"."四个意识"中,核心意识是重中之重,没有核心意识,就没有足够的凝聚力.无论是政治意识、大局意识、看齐意识,最后都要统一到核心意识这一核心上.增强"四个意识"需要我们做到"两个维护". 相似文献
275.
Işcan YM 《Forensic science international》1998,98(1-2):1-8
Anthropological contribution to forensic sciences has been multifaceted and the progress has been remarkable in the last quarter of this century. The field has brought together scientists from all around the world. The purpose of this paper is to present a special issue on forensic anthropological research. Some of the papers cover age estimation from the ankle and knee epiphyses (India), basioccipital synchondrosis (also India), sternal end rib metamorphosis in Turks, and histomorphometry of the Japanese. Sex determination from the South African cranium and Mongoloid humerus are the subject of two papers. Factors of individualization include a comparison of photographic images using neural network, bone trabecular radiography, determination of handedness from the humerus, time since death using 210Po to 210Pb ratio, and changes in the mineral content of bone after burial. From the papers in this special issue it can be concluded that there will be integration of many areas of forensic sciences to deal with anthropological issues in the 21st century. Estimation of time since death will be based on new and more precise techniques. Further research is needed to develop population specific osteological standards for populations of Africa, central and southeast Asia and Pacific region. In addition, there will be an increased interest in the study of living people. 相似文献
276.
The I?can's phase method for the estimation of adult age at death from the sternal extremity of the fourth rib was introduced in 1983. Over the years, numerous tests have confirmed the reliability of this technique on varied samples. However, no large scale study has been conducted to test the application of this method on a modern white sample geographically, genetically, and culturally diverse from the American white database. Therefore, the purpose of this paper is to apply rib phase standards to a Turkish sample to test if the progression of morphological changes follow the same age sequence. Using a sample of 150 males and 144 females of known age at death, each rib was phased using the standards developed by I?can and associates in 1984 and 1985. The phase estimations were then subject to an analysis of variance. The results of the study indicated that Turkish ribs show the same morphological characteristics that define the phases at nearly identical ages. Variation as measured by the standard deviation increased from phase 5 on in both sexes. In conclusion, this study demonstrated that the rib phase standards can be accurately applied to Turks. Investigations of this nature are vital because one cannot assume that a method developed from one group is applicable to a distant population, especially in medicolegal proceedings. 相似文献
277.
Shinomiya T Shinomiya K Orimoto C Minami T Tohno Y Yamada M 《Forensic science international》1998,98(1-2):109-118
Possible exchanges of elements between bone and the surrounding soil after being embedded underground for 2 years were estimated. Bone pieces were samples from human vertebrae without any treatments after resection. Sixteen elements were determined by atomic emission mass spectrometry. These were divided into three types; Type I, an in-flow in which elements increased, as in Fe, Al and Ba; type II, a balanced decrease in which changes were found in S, Mg and Zn; and type III, an out-flow in which elements, such as Ca and P, entered into bones from embedded soils. These exchanges depended on the varying nature of soils and also on the time underground. The exchanges were progressed in duration of the time after burial. Data obtained are possible references to judge the time-lapse after burial of bones in relating to characters of soils embedded, and to identify proper bone elements from containment elements. 相似文献
278.
279.
280.
运用微量热启动PCR技术,对20例正常家系的遗传学分析,证实D17530位点的遗传符合孟德尔遗传规律,表现为简单的共显性遗传。同时,对100例亲子鉴定案例进行回顾性分析研究,证明D17S30位.在多态性可应用于我国法医学亲子鉴定。根据D17S30位点基因频率估算的排除概率(74.04%)与其实际排除能力(80.00%)无显著差异。在15倒排除亲子关系的案例中,有2例由D17S30位点单独取得排除证据。D17S30位点是法医学上有重要意义的遗传学标记,可用于亲子鉴定。 相似文献