全文获取类型
收费全文 | 988篇 |
免费 | 38篇 |
专业分类
各国政治 | 106篇 |
工人农民 | 30篇 |
世界政治 | 75篇 |
外交国际关系 | 59篇 |
法律 | 458篇 |
中国共产党 | 1篇 |
中国政治 | 7篇 |
政治理论 | 284篇 |
综合类 | 6篇 |
出版年
2023年 | 5篇 |
2022年 | 4篇 |
2021年 | 9篇 |
2020年 | 21篇 |
2019年 | 28篇 |
2018年 | 23篇 |
2017年 | 37篇 |
2016年 | 34篇 |
2015年 | 32篇 |
2014年 | 38篇 |
2013年 | 158篇 |
2012年 | 32篇 |
2011年 | 26篇 |
2010年 | 28篇 |
2009年 | 15篇 |
2008年 | 31篇 |
2007年 | 26篇 |
2006年 | 39篇 |
2005年 | 36篇 |
2004年 | 31篇 |
2003年 | 40篇 |
2002年 | 40篇 |
2001年 | 13篇 |
2000年 | 18篇 |
1999年 | 15篇 |
1998年 | 21篇 |
1997年 | 19篇 |
1996年 | 12篇 |
1995年 | 5篇 |
1994年 | 15篇 |
1993年 | 18篇 |
1992年 | 16篇 |
1991年 | 12篇 |
1990年 | 9篇 |
1989年 | 12篇 |
1988年 | 19篇 |
1987年 | 6篇 |
1986年 | 9篇 |
1985年 | 6篇 |
1984年 | 8篇 |
1983年 | 4篇 |
1982年 | 6篇 |
1981年 | 6篇 |
1979年 | 8篇 |
1978年 | 6篇 |
1976年 | 4篇 |
1973年 | 3篇 |
1972年 | 3篇 |
1971年 | 4篇 |
1968年 | 3篇 |
排序方式: 共有1026条查询结果,搜索用时 0 毫秒
191.
Marc Anthony Fusaro 《The Journal of Technology Transfer》2009,34(1):24-42
Karshenas and Stoneman (RAND J Econ 24(4):503–528, 1993) gathered four theories of technology adoption: the rank, stock, order
and epidemic effects. Tests of these four effects reveal support for rank and epidemic but not the stock or order effects.
Since then numerous other studies have tried to find evidence in support of the stock and order effects. But evidence has
been elusive, until now. Further, a survey by Frame and White (J Econ Lit 42:116–144, 2004) concludes that much more work
is needed into financial innovation. This paper accomplishes three goals: (1) evidence is found to support certain technology
adoption theories (the order effects and possibly the stock effects), (2) since the technology under consideration is a financial
innovation called bounce protection, the paper answers Frame and White’s call for papers, and (3) refinements are made to
the Karshenas and Stoneman methodology and found to be superior to the original empirical model.
相似文献
Marc Anthony FusaroEmail: |
192.
In his article in Trusts and Trustees, 2007, volume 13, No 7,Dakis Hagen discussed the increasingly widespread application,and the uncertain limits, of the Unruly rule in Hastings-Bass.In this article, co-editor Tony Molloy QC questions whetherwhat has come to be called the Rule in Hastings-Bass is anythingmore than a baseless snare. 相似文献
193.
Dedouit F Bindel S Gainza D Blanc A Joffre F Rougé D Telmon N 《Journal of forensic sciences》2008,53(2):288-295
Age determination is a major field of interest in physical and forensic anthropology. Among the different methods based on macroscopic skeletal study, the Iscan method, which analyzes the sternal end of the right fourth rib, is one of the most reliable. We applied the Iscan method to two- and three-dimensional multislice computed tomography (MSCT) reconstructions of the sternal end of the right fourth rib on 39 ribs. The intra-observer variability on MSCT reconstructions was good (gamma coefficient equal to 0.86; value of the Krippendorff's alpha reliability equal to 0.79); inter-observer variability on MSCT reconstructions was also good (gamma coefficient ranging from 0.82 to 0.88; value of the Krippendorff's alpha reliability ranging from 0.78 to 0.86). We demonstrated excellent agreement between the results of analysis of bone samples and those of the two- and three-dimensional images, in particular regarding bone projections, morphology of the pit and of its rim. The accuracy of age estimation did not significantly differ between the Iscan method applied to dry bones and the same method applied to MSCT images. Determination of the Krippendorff's alpha reliability coefficient for the inter-error method confirmed the agreement between phase estimations obtained with the two methods (ranging from 0.55 to 0.71). The real civil age was comprised in 21 cases out of 36 for assessment performed on dry bones and in 23 cases out of 36 on MSCT reconstructions, which represented 58.3% and 63.9%, respectively. Use of MSCT reconstructions in forensic anthropology offers many advantages: no bone preparation, no damage to bone material, and the possibility of application to living individuals. 相似文献
194.
Two groups were selected from the remainder of hair samples that had been tested for drugs at TrichoTech for medico-legal cases: samples that tested negative (drug-negative group; N=42, age 33.4+/-7.2 years) and samples that tested positive for drugs (drug-positive group; N=57, age 32.5+/-8.8 years). A rapid, simple method to detect the ethanol metabolite, ethyl glucuronide (EtG) in hair has been developed. The hair samples were sectioned, and then submitted to overnight sonication in water. Samples then underwent SPE using anion exchange cartridges, followed by derivatisation with N,O-bis[trimethylsilyl]trifluoroacetamide (BSTFA), before confirmation by GC-MS/MS. The assay produced excellent linearity and sensitivity over the calibration range 0.02-1.0 ng/mg, assuming a 10 mg hair sample. The mean age of the two groups was not statistically different (p=0.575, Student t-test), indicating a homogeneous group. Twelve of the 57 (21.0%) hair samples of the drug-positive group tested positive for EtG, and 17 of the 42 (40.5%) hair samples of the drug-negative group tested positive for EtG. The mean concentration of EtG in the drug-positive group was 0.011 ng/mg compared to 0.107 ng/mg in the drug-negative group. When the full results of this study were subjected to statistical analysis it was shown that EtG levels in the drug-negative group were statistically higher than those found in the drug-positive group (p<0.05). This preliminary finding may be of use in the study of addiction and adds valuable data to previous studies regarding the use of EtG as a valuable marker for alcohol levels in hair. 相似文献
195.
Anthony Gray 《Computer Law & Security Report》2013,29(1):58-65
Cloud technology offers wonderful potential for users in terms of convenience, ease of obtaining updates etc. However, it presents significant legal challenges. Our laws, largely based on notions of territoriality, struggle to respond to technology in which lines on maps are largely irrelevant. In this article, I articulate some of the specific challenges. The law of contract, tort and national regulation might all apply to a claim of breach of privacy in relation to material uploaded to the cloud. Unfortunately, each of the jurisdictions studied would approach the issues in different ways, potentially creating significant confusion. The article proposes a need for international co-operation and agreement on these matters. 相似文献
196.
197.
Political parties with strict party discipline are well-placed to demand that their election candidates and legislators promote the party brand. The franchise-franchisee relationship causes representatives to relinquish individual expression in exchange for centralized party messaging. This article looks at how a strategic desire for party unity combines with internal brand management to turn lower-ranking politicians in a parliamentary system into party brand ambassadors. Our Canadian case study draws on in-depth interviews with party leaders, Members of Parliament, political staff, candidates for office and prospective candidates. The implications for representative democracy in a Westminster system are considered, including the representational constraints for racial and sexual minorities. 相似文献
198.
199.
200.
School corporal punishment is associated with many negative outcomes. This research explores the antecedents to the practice
and prevalence of school corporal punishment. A series of regression models indicated that two variables were significant
predictors of a state’s practice of school corporal punishment: rate of evangelical Protestant adherents and social capital.
A path analysis indicated that these two variables significantly predicted the rate of school corporal punishment in practicing
states. The path analysis also revealed a significant and negative relationship between rate of evangelical Protestant adherents
and social capital, but no relationship between rate of mainstream Protestant adherents and social capital. A mediation analysis
indicated that social capital serves as a mediating variable between evangelical Protestantism and rate of school corporal
punishment. Practical and theoretical implications are discussed. 相似文献