全文获取类型
| 收费全文 | 1011篇 |
| 免费 | 25篇 |
专业分类
| 各国政治 | 58篇 |
| 工人农民 | 44篇 |
| 世界政治 | 61篇 |
| 外交国际关系 | 98篇 |
| 法律 | 395篇 |
| 中国政治 | 12篇 |
| 政治理论 | 356篇 |
| 综合类 | 12篇 |
出版年
| 2024年 | 5篇 |
| 2023年 | 10篇 |
| 2022年 | 5篇 |
| 2021年 | 12篇 |
| 2020年 | 30篇 |
| 2019年 | 29篇 |
| 2018年 | 31篇 |
| 2017年 | 37篇 |
| 2016年 | 55篇 |
| 2015年 | 28篇 |
| 2014年 | 41篇 |
| 2013年 | 128篇 |
| 2012年 | 39篇 |
| 2011年 | 35篇 |
| 2010年 | 29篇 |
| 2009年 | 29篇 |
| 2008年 | 24篇 |
| 2007年 | 27篇 |
| 2006年 | 42篇 |
| 2005年 | 40篇 |
| 2004年 | 31篇 |
| 2003年 | 38篇 |
| 2002年 | 35篇 |
| 2001年 | 24篇 |
| 2000年 | 18篇 |
| 1999年 | 15篇 |
| 1998年 | 16篇 |
| 1997年 | 22篇 |
| 1996年 | 4篇 |
| 1995年 | 10篇 |
| 1994年 | 6篇 |
| 1993年 | 15篇 |
| 1992年 | 4篇 |
| 1991年 | 8篇 |
| 1990年 | 9篇 |
| 1989年 | 8篇 |
| 1988年 | 8篇 |
| 1987年 | 4篇 |
| 1986年 | 7篇 |
| 1985年 | 11篇 |
| 1983年 | 5篇 |
| 1981年 | 7篇 |
| 1980年 | 7篇 |
| 1979年 | 7篇 |
| 1978年 | 8篇 |
| 1977年 | 6篇 |
| 1975年 | 4篇 |
| 1974年 | 4篇 |
| 1973年 | 4篇 |
| 1972年 | 3篇 |
排序方式： 共有1036条查询结果，搜索用时 0 毫秒
811.
Patrick John Ring 《Economy and Society》2013,42(4):534-550
Abstract While the governance of pension schemes, and the risk this poses for pension savers, is a prominent issue in current pension debate in the UK, this paper places that debate in, arguably, the more important context of the governance of individual behaviour. Using the concept of governmentality as a means of interpreting the course of recent UK pension policy and its attempts to influence individual saving behaviour, it critiques that policy. The paper then goes on to consider the effect of the introduction of personal accounts upon the pensions landscape, and in particular its potential to push forward the government's recent approach to pension provision. It argues that these reforms, rather than furthering individual saving for retirement, may alternatively create the very real possibility of undermining it. 相似文献
812.
813.
814.
AbstractWe conduct a series of experiments in rural India in order to measure preferences related to risk, loss, and ambiguity. By combining these results with a discrete choice experiment over new and familiar rice seeds, we demonstrate how these behavioural parameters affect decisions to adopt new agricultural technologies, especially when the new technologies are risk reducing. We find that risk averse and loss averse individuals are more likely to switch to new seeds demonstrating risk reducing characteristics, while, contrary to expectations, ambiguity averse individuals are no more willing to retain their status quo than switch to cultivating the new variety. 相似文献
815.
Patrick W. Thevissen M.Sc. Steffen Fieuws Ph.D. Guy Willems Ph.D. 《Journal of forensic sciences》2013,58(2):393-397
Multiple third molar development registration techniques exist. Therefore the aim of this study was to detect which third molar development registration technique was most promising to use as a tool for subadult age estimation. On a collection of 1199 panoramic radiographs the development of all present third molars was registered following nine different registration techniques [Gleiser, Hunt (GH); Haavikko (HV); Demirjian (DM); Raungpaka (RA); Gustafson, Koch (GK); Harris, Nortje (HN); Kullman (KU); Moorrees (MO); Cameriere (CA)]. Regression models with age as response and the third molar registration as predictor were developed for each registration technique separately. The MO technique disclosed highest R2 (F 51%, M 45%) and lowest root mean squared error (F 3.42 years; M 3.67 years) values, but differences with other techniques were small in magnitude. The amount of stages utilized in the explored staging techniques slightly influenced the age predictions. 相似文献
816.
We investigated the impact of personality factors and group identity factors on self-reported delinquency among high school students. Respondents were 420 Australian youth with a mean age of 15.22 r yrs. The sample comprised 224 males and 196 females. The strongest predictors of delinquency among both males and females were Eysenck's Psychoticism factor and an identity with so-called \"rebels\". In addition, Extraversion (males) and low self-reported academic achievement (females) were also found to be important factors. It was further concluded that Psychoticism, Agreeableness and Conscientiousness have little in common in their prediction of delinquency. The results are discussed with reference to previous research on the role of personality and group identity factors, and some suggestions for future research are also made. 相似文献
817.
DE Dean LJ Kohler GC Sterbenz PJ Gillespie NS Gonzaga LJ Bauer K Looman O Owens 《Journal of forensic sciences》2012,57(5):1226-1230
Many studies have been published regarding suicidal hanging deaths, and most forensic pathologists and coroners are very familiar with such causes of death. Forensic pathologists are challenged over their rulings regarding manner of death in part because the general public has a limited scope of knowledge. One such challenge centers on the question of whether a hanging can be a suicide if the individual is not fully suspended. The authors designed a retrospective study to review suspension in hangings and to analyze other criteria used to help in deciding manner of death. We examined 229 suicidal hanging deaths over an 11-year period (1997 through early 2009) using the data from two separate jurisdictions in Ohio. In conclusion, we found that the vast majority (83.4%) of people who hanged themselves were found partially suspended. Among other criteria analyzed, only the presence of petechial hemorrhages and acute neck injury was statistically significant. 相似文献
818.
Huestis MA Gustafson RA Moolchan ET Barnes A Bourland JA Sweeney SA Hayes EF Carpenter PM Smith ML 《Forensic science international》2007,169(2-3):129-136
Fifty-three head hair specimens were collected from 38 males with a history of cannabis use documented by questionnaire, urinalysis and controlled, double blind administration of delta9-tetrahydrocannabinol (THC) in an institutional review board approved protocol. The subjects completed a questionnaire indicating daily cannabis use (N=18) or non-daily use, i.e. one to five cannabis cigarettes per week (N=20). Drug use was also documented by a positive cannabinoid urinalysis, a hair specimen was collected from each subject and they were admitted to a closed research unit. Additional hair specimens were collected following smoking of two 2.7% THC cigarettes (N=13) or multiple oral doses totaling 116 mg THC (N=2). Cannabinoid concentrations in all hair specimens were determined by ELISA and GCMSMS. Pre- and post-dose detection rates did not differ statistically, therefore, all 53 specimens were considered as one group for further comparisons. Nineteen specimens (36%) had no detectable THC or 11-nor-9-carboxy-THC (THCCOOH) at the GCMSMS limits of quantification (LOQ) of 1.0 and 0.1 pg/mg hair, respectively. Two specimens (3.8%) had measurable THC only, 14 (26%) THCCOOH only, and 18 (34%) both cannabinoids. Detection rates were significantly different (p<0.05, Fishers' exact test) between daily cannabis users (85%) and non-daily users (52%). There was no difference in detection rates between African-American and Caucasian subjects (p>0.3, Fisher's exact test). For specimens with detectable cannabinoids, concentrations ranged from 3.4 to >100 pg THC/mg and 0.10 to 7.3 pg THCCOOH/mg hair. THC and THCCOOH concentrations were positively correlated (r=0.38, p<0.01, Pearson's product moment correlation). Using an immunoassay cutoff concentration of 5 pg THC equiv./mg hair, 83% of specimens that screened positive were confirmed by GCMSMS at a cutoff concentration of 0.1 pg THCCOOH/mg hair. 相似文献
819.
820.
已修正的中国<专利法>规定了共有专利权这个十分重要的概念.在分析共有专利权条款的基础上,介绍了分配利益的几种方法.通过对比不同国家对共有专利权的规定,提出协商和起草共同研发协议或者共同合作协议时必须予以考虑的问题. 相似文献