全文获取类型
收费全文 | 1827篇 |
免费 | 515篇 |
专业分类
各国政治 | 399篇 |
工人农民 | 56篇 |
世界政治 | 229篇 |
外交国际关系 | 101篇 |
法律 | 817篇 |
中国共产党 | 1篇 |
中国政治 | 36篇 |
政治理论 | 669篇 |
综合类 | 34篇 |
出版年
2023年 | 5篇 |
2021年 | 30篇 |
2020年 | 45篇 |
2019年 | 162篇 |
2018年 | 98篇 |
2017年 | 150篇 |
2016年 | 159篇 |
2015年 | 140篇 |
2014年 | 134篇 |
2013年 | 567篇 |
2012年 | 96篇 |
2011年 | 95篇 |
2010年 | 110篇 |
2009年 | 50篇 |
2008年 | 71篇 |
2007年 | 42篇 |
2006年 | 46篇 |
2005年 | 27篇 |
2004年 | 38篇 |
2003年 | 18篇 |
2002年 | 23篇 |
2001年 | 8篇 |
2000年 | 20篇 |
1999年 | 14篇 |
1998年 | 12篇 |
1997年 | 13篇 |
1996年 | 14篇 |
1995年 | 14篇 |
1994年 | 15篇 |
1993年 | 13篇 |
1992年 | 8篇 |
1991年 | 9篇 |
1990年 | 13篇 |
1989年 | 8篇 |
1988年 | 8篇 |
1987年 | 4篇 |
1986年 | 6篇 |
1985年 | 6篇 |
1984年 | 8篇 |
1983年 | 7篇 |
1982年 | 3篇 |
1981年 | 8篇 |
1980年 | 6篇 |
1979年 | 4篇 |
1978年 | 5篇 |
1977年 | 4篇 |
1976年 | 1篇 |
1974年 | 2篇 |
1966年 | 1篇 |
1965年 | 1篇 |
排序方式: 共有2342条查询结果,搜索用时 281 毫秒
291.
Andrea Fernández‐Ribas 《政策研究评论》2010,27(4):457-473
The aim of this article is to investigate to what extent small‐firm foreign patents differ from those of their larger counterparts. The research setting consists of the population of U.S.‐owned small and large businesses with patent applications at the World International Patent Organization during 1996–2006 in the emerging field of nanotechnology. Findings reveal a significant and growing contribution of small firms to the globalization of patents. The analysis also suggests that small‐firm patents tend to be more novel and embedded in domestic innovation networks than large‐firm patents. Policy implications are multiple, including putting international patenting on the policy agenda and helping highly innovative small companies to explore foreign commercial opportunities in new markets of capital and technology. 相似文献
292.
This paper examines the internal constraints on Gaza's manufacturing sector during the Israeli occupation. Manufacturing development was constrained by the Israeli occupation, but the authors chose to look at the situation from Gaza's point of view, and examine the attitudes and the effects of the lack of industrial experience on manufacturing.
Internal constraints include the ‘lack of an adequate skills base’, ‘a misunderstanding and distrust of marketing’, ‘unsophisticated attitudes towards finance and the value of time’, ‘price being seen as more important than quality’ and ‘authoritarian attitudes to management practice’. Local education and training are struggling to remedy aspects of this situation but they presently lack the resources.
There was a widespread lack of understanding of the concept of a company as a separate entity. 相似文献
293.
Jennifer Lees‐Marshment 《Journal of Public Affairs (14723891)》2003,3(4):358-370
Charities or interest groups need to attract supporters, who offer both financial support and participation, to achieve their overall goal of influencing public affairs. They can use political marketing to help them attract and retain such supporters. Existing literature indicates they use marketing techniques such as direct mail to communicate to potential new supporters, but new research has discovered that the influence of political marketing is much more comprehensive. The most effective groups are now using political marketing to design the package they offer to supporters. They go through a four‐stage process. First, they conduct market intelligence to understand what supporters want from the organisation and second, they design their product accordingly. Third, they communicate this to potential supporters and then finally deliver campaign progress and they communicate this to existing supporters. They use marketing concepts: they adopt a market orientation and build an organisation designed to take account of its users' needs and wants. Although such charities are often associated with non‐business behaviour, the most successful groups are adopting the concepts and techniques of comprehensive political marketing as the means to increase their influence on government and public affairs. Copyright © 2003 Henry Stewart Publications 相似文献
294.
A key motive for establishing the European Food Safety Authority (EFSA) was restoring public confidence in the wake of multiplying food scares and the BSE crisis. Scholars, however, have paid little attention to the actual political and institutional logics that shaped this new organization. This article explores the dynamics underpinning the making of EFSA. We examine the way in which learning and power shaped its organizational architecture. It is demonstrated that the lessons drawn from the past and other models converged on the need to delegate authority to an external agency, but diverged on its mandate, concretely whether or not EFSA should assume risk management responsibilities. In this situation of competitive learning, power and procedural politics conditioned the mandate granted to EFSA. The European Commission, the European Parliament and the European Council shared a common interest in preventing the delegation of regulatory powers to an independent EU agency in food safety policy. 相似文献
295.
Silvia Turroni Beatrice Vitali Marco Candela Paolo Gionchetti Fernando Rizzello Massimo Campieri Patrizia Brigidi 《党史博采》2010,(1)
AIM:To profile protein expression in mucosal biopsies from patients with chronic refractory pouchitis following antibiotic or probiotic treatment,using a comparative proteomic approach. METHODS:Two-dimensional polyacrylamide gel electrophoresis and matrix-assisted laser desorption/ ionization-time of flight mass spectrometry were used to characterize the changes related to antibiotic therapy in the protein expression profiles of biopsy samples from patients with chronic refractory pouchitis.The same proteom... 相似文献
296.
P. M. Amos‐Wilson 《公共行政管理与发展》1999,19(3):219-229
This article considers issues concerning women's managerial careers in the Ghanaian Civil Service, which have emerged from an analysis of data collected in Accra as part of a Government of Ghana project supported by the United Kingdom Department for International Development. This examined the position and status of Women in Public Life in Ghana and was known as the WIPL project. Within this project, information was collected from women civil servants, and it is this which is presented here. Copyright © 1999 John Wiley & Sons, Ltd. 相似文献
297.
Sophie Raymond M.D. Anne‐Sophie Léger M.D. Ivan Gasman M.D. 《Journal of forensic sciences》2019,64(5):1568-1573
In today's society, human cannibalism is extremely rare and represents an unthinkable act of violence. Scientific literature on the topic is sparse due to significant methodological problems, such as collecting enough data and generating unbiased analyses. The purpose of this article is to illustrate some psychodynamic aspects of cannibalism. After a review of the literature, we will present and compare five cannibalistic patients hospitalized in the Henri Colin secure unit (Villejuif, France). The patients described fall into two subgroups, suffering either from severe schizophrenia or from a mixed personality disorder with sadistic and psychopathic features associated with paraphilia. For the schizophrenia group, cannibalism is a self‐defense reaction to a perceived threat of destruction: survival depends on the annihilation or assimilation of the other. For the mixed personality disorder group, ego and narcissism are the central issue with a desire to overcome deep‐rooted frustrations by means of an extraordinary act. 相似文献
298.
Agathe Bascou B.M. Frederic Savall M.D. Ph.D. Marion Vergnault M.D. Romain Montoriol M.D. Céline Guilbeau‐Frugier M.D. Ph.D. Estelle Maupoint B.M. Mohamed Chérif El Khal M.D. Norbert Telmon M.D. Ph.D. 《Journal of forensic sciences》2019,64(6):1929-1932
Hyperostosis frontalis interna is a common phenomenon, which may have been overrated in its significance in the past, and may, currently be underrated in its significance. We present three cases of hyperostosis frontalis interna found during medicolegal autopsies and discuss their forensic considerations. The patients were all middle‐aged women with metabolic and endocrine manifestations and psychiatric ailments; thickening of the inner table of the frontal bone of the skull was found during each autopsy. We describe the relationship between hyperostosis frontalis interna, metabolic manifestations, and neuropsychiatric symptoms as part of Morgagni‐Stewart‐Morel syndrome. There is still considerable disagreement in the scientific community as to whether this syndrome is a clinical entity. Nonetheless, awareness of Morgagni‐Stewart‐Morel syndrome can be of help in understanding the circumstances surrounding death. In some other cases, hyperostosis frontalis interna could be used by forensic pathologists as criteria for sexing and aging a skeleton. 相似文献
299.
Studies which estimate the postmortem interval (PMI) based on diatoms or bacterial communities have been well‐conducted. However, predicting the PMI based on microorganisms has limited accuracy. The objective of this study was to discover specific biomarkers for estimating the PMI for drowning. The in vivo experimental model consisted of rats classified into nine groups (seven drowned groups from Day 1 to Day 7 and two control groups). Their lung tissues were analyzed for the receptor for advanced glycation end products (RAGE) mRNA expression determined by qRT‐PCR. RAGE protein levels were determined by Western blotting and immunohistochemical (IHC) staining. RAGE mRNA and protein levels gradually degraded over time. Immunostaining analysis revealed that RAGE in the Day 1 sample was significantly higher than that in the Day 6 or Day 7 samples. These results indicate that RAGE in drowned lungs could be a potential biomarker for the determination of the PMI after drowning. 相似文献
300.
Emma Honyiglo M.D. Angélique Franchi M.D. Nathalie Cartiser Ph.D. Charline Bottinelli M.Sc Anne‐Sophie Advenier M.D. Fabien Bévalot Ph.D. Laurent Fanton Ph.D. 《Journal of forensic sciences》2019,64(4):1266-1270
Fatalities implicating psychedelic mushrooms are not a common clinical situation in everyday forensic medicine. Despite classification as an illegal drug in many countries, psilocybin mushrooms have the reputation of being safe. We report the case of a young man who jumped from a second story balcony under the influence of psilocybin mushrooms. The psilocin assay was performed by gas chromatography coupled to an electron‐impact ionization time‐of‐flight detector (GC‐EI‐TOF) after solid‐phase extraction. Total psilocin was quantified in peripheral and cardiac blood as 60 and 67 ng/mL, respectively, and in urine (2230 ng/mL), bile (3102 ng/mL), and vitreous humor (57 ng/mL). This case report and review of literature highlights the danger of psilocybin mushrooms. Isolated use of psilocybin mushrooms by a regular consumer without psychiatric history, even under “safe” circumstances, can lead to a fatal outcome. 相似文献