全文获取类型
收费全文 | 659篇 |
免费 | 44篇 |
专业分类
各国政治 | 46篇 |
工人农民 | 72篇 |
世界政治 | 55篇 |
外交国际关系 | 64篇 |
法律 | 313篇 |
中国政治 | 10篇 |
政治理论 | 135篇 |
综合类 | 8篇 |
出版年
2023年 | 12篇 |
2022年 | 3篇 |
2021年 | 9篇 |
2020年 | 30篇 |
2019年 | 20篇 |
2018年 | 37篇 |
2017年 | 47篇 |
2016年 | 43篇 |
2015年 | 31篇 |
2014年 | 28篇 |
2013年 | 80篇 |
2012年 | 28篇 |
2011年 | 18篇 |
2010年 | 22篇 |
2009年 | 22篇 |
2008年 | 21篇 |
2007年 | 28篇 |
2006年 | 33篇 |
2005年 | 24篇 |
2004年 | 21篇 |
2003年 | 19篇 |
2002年 | 25篇 |
2001年 | 7篇 |
2000年 | 10篇 |
1999年 | 3篇 |
1998年 | 9篇 |
1997年 | 3篇 |
1996年 | 2篇 |
1995年 | 1篇 |
1994年 | 2篇 |
1993年 | 2篇 |
1992年 | 3篇 |
1991年 | 4篇 |
1990年 | 3篇 |
1989年 | 3篇 |
1988年 | 4篇 |
1987年 | 1篇 |
1986年 | 5篇 |
1985年 | 6篇 |
1984年 | 8篇 |
1983年 | 5篇 |
1982年 | 4篇 |
1981年 | 3篇 |
1980年 | 1篇 |
1979年 | 4篇 |
1978年 | 5篇 |
1977年 | 1篇 |
1975年 | 1篇 |
1973年 | 2篇 |
排序方式: 共有703条查询结果,搜索用时 15 毫秒
111.
This paper presents the results and policy implications of a study that examined the spawning of founders who had previously been employed at large corporations. We found that spawning of founders is positively associated with the parent companies' productivity, innovativeness, and headquarter location. Furthermore, we found that the spin‐off per employee rate is higher in smaller establishments. We also found that the local entrepreneurial culture is significant in explaining local spawning of founders. Finally, we present new empirical evidence on the crucial role of successful homegrown companies in regional cluster development. More specifically, we found that the existence of successful homegrown companies is significantly correlated with the level of the regional entrepreneurial activity. This finding is consistent with the finding of many cluster development case studies. Thus, we argue that successful homegrown companies have a unique role in cluster development. This role can seldom be replaced by nonhomegrown companies. This is related to the notion that prior to the development of an entrepreneurial cluster, some intangible precondition should be realized such as the appearance of local role models and a shift toward a more entrepreneurial culture. In a more general perspective, these results support the notion that knowledge‐based regional development is a complex process that requires a long‐term and continuously adjusting supporting policy rather than being based mainly on attracting established companies' R&D centers to the region. 相似文献
112.
Salvatore Principale Antonietta Cosentino Rosa Lombardi Andrea Rocchi 《Journal of Public Affairs (14723891)》2023,23(3):e2863
The role of the public administration is crucial for the development of smart cities. Several scholars have highlighted the need for greater contributions focused on the relationship between public administration and smart cities. This work aims to map the contributions on the topic highlighting the status of the field in the recent years. A bibliometric analysis was performed on a sample of articles published in business and management journals. The analysis was carried out using the R-studio Bibliometrics package. Results show that research on the topic is still in an initial stage and has several gaps that future studies could fill. The study is useful for scholars because it identifies the topics analyzed by previous research and highlights future research questions that could be investigated. The analysis highlighted the areas studied by scholars on the topic: urban planning, sustainable development, governance approach, Internet of Things and information and communication technologies. 相似文献
113.
Maria-Therese Gustafsson Almut Schilling-Vacaflor Andrea Lenschow 《Regulation & Governance》2023,17(4):891-908
In the recent past, European states have adopted mandatory due diligence (MDD) laws for holding companies accountable for the environmental and human rights impacts of their supply chains. The institutionalization of the international due diligence norm into domestic legislation has, however, been highly contested. Our contribution analyzes the discursive struggles about the meaning of due diligence that have accompanied the institutionalization of MDD in Germany and France. Based on document analysis and legal analysis of laws and law proposals, we identify a state-centric, a market-based, and a polycentric-governance discourse. These discourses are based on fundamentally different understandings of how the United Nations Guiding Principles on Business and Human Rights should be translated into hard law. By outlining these discourses and comparing the related policy preferences, we contribute with a better understanding of different ways in which MDD is institutionalized, with important consequences for the possibilities to enhance corporate accountability in global supply chains. 相似文献
114.
115.
116.
Basal Vacuolization in Renal Tubular Epithelial Cells at Autopsy and Their Relation to Ketoacidosis 下载免费PDF全文
Chong Zhou M.B.B.S. Andrea J. Yool Ph.D. Roger W. Byard M.D. 《Journal of forensic sciences》2017,62(3):681-685
Basal vacuolization of renal tubular epithelial cells is a useful postmortem marker for ketoacidosis. To investigate its incidence and relationship to the severity of ketoacidosis, 158 autopsy cases with elevated β‐hydroxybutyrate (>1 mmol/L) over a 7‐year‐period were retrospectively reviewed. Sixty‐eight cases (43%) exhibited basal vacuolizations (vitreous β‐hydroxybutyrate: 1.16–29.35 mmol/L, mean 10.28 mmol/L), and 90 cases (57%) did not (vitreous β‐hydroxybutyrate: 1.03–13.7 mmol/L, mean 2.84 mmol/L). Quantitative analysis revealed on average a fourfold elevation in β‐hydroxybutyrate in cases with basal vacuolizations compared to those without; 10.3% of cases with β‐hydroxybutyrate concentrations between 1.01 and 2.00 mmol/L had basal vacuolizations, and this incidence increased to 33.3% with concentrations between 4.01 and 6.00 mmol/L. A marked increase in incidence to >70% was observed with concentrations >6.00 mmol/L, and basal vacuoles were invariably present (100%) with concentrations >14.01 mmol/L. This study demonstrates that basal vacuolizations are a sensitive marker for significant ketoacidosis and reaffirms its use as an indicator for likely cases of fatal ketoacidosis at autopsy. 相似文献
117.
Nicole Yarid M.D. Emily C. Brown M.D. Markus Boos M.D. Ph.D. Jeffrey Otjen M.D. James Metz M.D. Carole Jenny M.D. Kenneth W. Feldman M.D. 《Journal of forensic sciences》2019,64(1):284-288
Traumatic cardiac ventricular ruptures in children are rare. Only a single case of left ventricular rupture due to child abuse has been reported. We report a child who sustained a fatal left ventricular apical rupture. It appeared to have resulted from hydrostatic forces resulting from abusive blunt thoracic injury. That he was being abused was previously missed when he was presented to the emergency department with facial pyoderma. It was not noted that he also had lip and oral mucosal injury, sites not affected by staph toxins. As a result, his underlying, abusive and secondarily infected, facial flow type scald burn was not appreciated. Within a week thereafter his fatal injury occurred, accompanied by extensive and obvious associated abusive injuries. Postmortem high‐detail whole body computed tomography scanning aided the autopsy. Although rare, ventricular rupture from abusive blunt thoracic injury can occur. 相似文献
118.
Jeffrey James Lynch M.Sc. Carrie Brown Ph.D. Andrea Palmiotto Ph.D. Heli Maijanen Ph.D. Franklin Damann Ph.D. 《Journal of forensic sciences》2019,64(1):171-174
Forensic casework from past‐conflicts relies on the corrected historical Trotter data for stature estimation in Fordisc. For roughly 10 years’, stature estimation using this data has produced point estimates for the tibia that are on average 1.25 inches less than the other long bones. This issue was identified after applying the equations derived from Fordisc to the USS Oklahoma commingled assemblage. Reevaluation of Fordisc revealed that a correction factor of 20 mm, instead of 10 mm, was mistakenly applied to the Trotter tibia data. Historical forensic anthropology reports written at the Defense POW/MIA Accounting Agency were utilized to identify that the overcorrection is isolated to Fordisc 3 with an error rate of 5% of known antemortem statures falling outside of the prediction intervals that relied on the tibia. Further evaluation of the Oklahoma sample indicates the 10 mm correction is still producing point estimates less than the other long bones. 相似文献
119.
120.