全文获取类型
收费全文 | 669篇 |
免费 | 27篇 |
专业分类
各国政治 | 39篇 |
工人农民 | 43篇 |
世界政治 | 78篇 |
外交国际关系 | 31篇 |
法律 | 408篇 |
中国政治 | 1篇 |
政治理论 | 96篇 |
出版年
2023年 | 6篇 |
2022年 | 5篇 |
2021年 | 15篇 |
2020年 | 18篇 |
2019年 | 15篇 |
2018年 | 31篇 |
2017年 | 45篇 |
2016年 | 42篇 |
2015年 | 25篇 |
2014年 | 29篇 |
2013年 | 87篇 |
2012年 | 32篇 |
2011年 | 17篇 |
2010年 | 14篇 |
2009年 | 15篇 |
2008年 | 23篇 |
2007年 | 31篇 |
2006年 | 25篇 |
2005年 | 20篇 |
2004年 | 29篇 |
2003年 | 19篇 |
2002年 | 26篇 |
2001年 | 23篇 |
2000年 | 9篇 |
1999年 | 9篇 |
1997年 | 3篇 |
1996年 | 4篇 |
1994年 | 1篇 |
1993年 | 2篇 |
1992年 | 4篇 |
1991年 | 5篇 |
1990年 | 6篇 |
1989年 | 8篇 |
1988年 | 5篇 |
1987年 | 5篇 |
1985年 | 1篇 |
1984年 | 4篇 |
1983年 | 3篇 |
1981年 | 1篇 |
1979年 | 3篇 |
1978年 | 1篇 |
1977年 | 1篇 |
1975年 | 1篇 |
1974年 | 1篇 |
1973年 | 7篇 |
1972年 | 5篇 |
1971年 | 9篇 |
1970年 | 1篇 |
1966年 | 1篇 |
1965年 | 1篇 |
排序方式: 共有696条查询结果,搜索用时 15 毫秒
71.
72.
Dóra Győrffy 《欧亚研究》2006,58(2):239-259
The favourable assessments of international organisations regarding the character of democracy in the Central European countries seem to suggest that, in spite of early fears, democracy can be established even in a low-trust environment. Through analysing the difficulties of fiscal adjustments in Hungary this article examines how lack of trust affects the quality of these democracies in terms of effective governance. Hungary used to be a front-runner in the transition process but given its ballooning budget deficit, it is now considered a laggard in terms of meeting the requirements for introducing the euro. This article claims that while strong continuities from the socialist period gave the country a head start at the beginning of the transition process, the same continuities have slowed down development more recently because of their effects on the general level of trust. The prevalence of distrust both towards and within the elite provides a fertile environment for economic populism and under such circumstances fiscal adjustment becomes more difficult. The main conclusion is that while the low level of trust did not prove decisive in terms of establishing the institutions of democracy, the existence of trust is critical for effective governance. 相似文献
73.
The family is one of the major socialization agencies for children. Parents are one of the most important models from whom the child and adolescent acquire a wide variety of behavior patterns, attitudes, values, and norms. The aim of this study was to determine the importance of factors related to family conflicts in the genesis of social maladjustment. A total of 189 young people (110 boys and 79 girls) from training schools connected with the juvenile court in Murcia (Spain) were studied. The subjects' ages ranged from 11 to 18 years (mean 13.51, SD 0.16). Our sample comprised a group of minors who experienced a high incidence of intrafamilial pathology, which was found to be a significant discriminant factor. Aggressive behavior, rules, norms, values, opinions, and attitudes toward aggressivity can be learned in the family setting. 相似文献
74.
The objective of this work was to study the postmortem redistribution of blood volumes and its influence of the distribution of substances of different molecular weight (194.2 and 150,000 Da). Lipiodol Ultrafluide, Omnitrast, or a radioisotopic mixture of aminohippuric acid and human IgG were injected into the left ventricle of a total of 20 rabbits divided into three groups. Our results demonstrate the importance of related factors, including left ventricular postmortem contraction, the arterial vascular bed, diffusion processes connected to the physicochemical characteristics of the substances, and the anatomical distribution of the vessels. Postmortem diffusion of aminohippuric acid to the urine was observed. 相似文献
75.
A new method has been introduced to distinguish normal adult serum stains from fetal or newborn serum and amniotic fluid stains with ELISA in cases of criminal abortion and infanticide. The method is based on the sensitive detection of alpha-fetoprotein (AFP) by a two-site enzyme immunoassay (EIA) following its elution with high efficiency from different materials (e.g., cotton, paper, synthetic fabric, or glass) by phosphate-buffered 0.5 M NaCl solution. 相似文献
76.
77.
78.
The average exclusion probability is a measure of efficiency in paternity testing; it refers to the a priori ability of a battery of tests to detect paternity inconsistencies. This parameter measures the capacity of the system to detect a false accusation of paternity. Traditionally, this average exclusion probability has been estimated as the probability of excluding a man who is not the father by an inconsistency in at least one of the studied loci. We suggest that this criterion should be corrected, as currently the presumed father is excluded when at least three genetic inconsistencies are found with the child being tested, not just one. This change of criterion has occurred because of the use of microsatellite loci, whose mutation rates are much greater than those of the coding genes used previously in paternity studies. We propose the use of the average probability of exclusion for at least three loci (not only one), as an honest measure of the combined probability of exclusion of several loci, and we propose an algebraic expression to calculate it. 相似文献
79.
Latent prints are an important evidence for identification. Nowadays, the technical means, the implementation of image processing techniques and the use of database makes it possible to detect and get information from some prints that seem to be useless at first sight. On the other hand, the possibility of using the print as a DNA source has to be considered, so as to double its identifying value. Human skin is a particularly difficult surface for developing this kind of evidences. Although different methods for locating and developing latent fingerprints on the skin have been already described, it has not been found any method, at the revised bibliography, to obtain and develop invisible lipmarks, that is, lipmarks from protective lipstick, or permanent or long-lasting lipstick. The aim of the work that follows is to determine the effectiveness of several reagents for developing invisible lipmarks on the corpses' skin. Preliminary results show that, under the described experimental conditions, the reagents used, Sudan III, Oil Red O and Sudan Black, are effective for obtaining recent latent lip prints on corpse's skin. 相似文献
80.
Bermejo AM López P Alvarez I Tabernero MJ Fernández P 《Forensic science international》2006,156(1):2-8
A method for the simultaneous determination of cocaine (COC) and cocaethylene (CE) in human hair was developed, using solid-phase microextraction (SPME) and gas chromatography-mass spectrometry (GC-MS) as analytical technique to identify and quantify the drugs. Selected ion monitoring (SIM) mode was used to obtain higher sensitivity. The deuterated-labeled analogues were used as internal standards. The detector response was linear for the drugs studied over the range 0.4-15 ng/mg, with correlation coefficients higher than 0.995. The coefficients of variation oscillated between 0.65% and 14.18% and the accuracy was in the range from 0.73% to 11.20%. The limits of quantitation and detection were found to be acceptable. Finally, this method was applied to 15 hair samples from cocaine users, obtaining positive results in all cases. The mean concentrations were 5.39 ng/mg (range: 0.43-8.98 ng/mg) for cocaine and 1.11 ng/mg (range: 0.42-2.23 ng/mg) for cocaethylene. 相似文献