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In this article we conduct a large quantitative survey of the literature on horizontal and vertical spillovers from foreign direct investment (FDI). We create a unique database of spillover estimates for each country examined in the literature. Next, we estimate the average effect corrected for publication selection bias (the preferential selection of positive and significant estimates for publication). Our results suggest that an average reported estimate of backward spillovers is statistically significant. Publication selection is evident only among studies published in peer-reviewed journals, and only among the estimates that authors consider most important. Authors with small data sets engage in more publication selection. The intensity of selection in the literature decreases over time, which supports the economics-research-cycle hypothesis.  相似文献   
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It is a well-known fact that the length of an artery in situ and the length of an excised artery differs. Retraction of blood vessels is usually observed. This pre-tension plays crucial role in arterial biomechanics. It augments an artery wall load-bearing capacity. This paper presents the longitudinal pre-strain of the human aorta as an index of human age. The length of abdominal aortas was measured during autopsies before and after segment resection. The longitudinal pre-strain was calculated in 130 donors; 100 male and 30 female bodies. The pre-strain was defined as the ratio between in situ length and the length after the excision. The mean pre-strain was found to be 1.18±0.10 for male and 1.14±0.10 for female sample (mean±standard deviation). The age in the male group was 41.6±15.9 years; and 47.7±17.7 years in the female group. Statistical analysis revealed the correlation coefficient between age and pre-strain r=-0.821 and r=-0.839 in male and female group, respectively. The analysis also confirmed close correlation between aortic circumference and age; and between circumference and pre-strain. Linear and power law regression equations were employed and prediction intervals were computed. The power law estimates the age more accurately than linear one model. Nevertheless, especially for small values of the pre-strain (aged individuals) the linear model can be advantageous.  相似文献   
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Across many social–ecological systems, policy makers and scholars increasingly call for science to inform policy. The science–policy interface becomes especially complex as collaborative approaches include multiple stakeholders working together across jurisdictions. Unfortunately little is known about how much and how science is used in collaborative governance for social–ecological systems. This exploratory study examines instrumental, conceptual, and symbolic use of science in a science‐rich collaborative planning case in the Puget Sound, USA. It also examines the influence of science, relative to other factors, in collaborative planning, and what factors affect it. Results from a survey and document analysis indicate the prevalence of conceptual use of science, with relatively little symbolic use. Some factors promoting conceptual and instrumental use discourage symbolic use. Overall, while science is seen as influential in this science‐rich context, its influence is balanced by local stakeholder preferences and contextual information.  相似文献   
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This study investigates the role of neighborhoods in adolescent violence in poor neighborhoods in San Juan, Puerto Rico. The study is part of a larger longitudinal project examining risk and resilience in adolescents' ages 12 to 15 years old and their caregivers. Using a cross-sectional design, a self-completion questionnaire, and an interviewer questionnaire, the authors assessed violent behaviors among participants across demographics, characteristics, and neighborhood social disorganization using the concepts of physical disorders and social disorder. Adolescent violence was positively associated with social disorder. The finding that adults in these neighborhoods walk around with visible firearms and engage in fighting, may have led adolescents to perceive that violence is an accepted behavior. Furthermore, socially disorganized neighborhoods might be less likely to organize on their own behalf because the occurrence of negative experience limits the amount of social support and resources that are available in the neighborhood.  相似文献   
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Understanding the rise to power is central to the study of politics. Yet, we still know little about the career paths of influential politicians like ministers. The literature assumes that dominant preparliamentary occupations (e.g., lawyer, local offices) predict promotion. We move beyond this potential ecological fallacy and suggest a perspective that emphasizes the role of gatekeepers and political human capital like national political experience and education. We leverage complete career data of all Dutch MPs (N = 1,263; 1945–2012) and study their (= 4,966) opportunities to obtain a cabinet position. A sequence analysis with fuzzy clustering reveals eight career paths in both the professional and political domain. A logistic regression analysis that uses these career paths as predictors shows that prominent occupations and communicative experience do not constitute the pathway to ministerial power; a university education and preparliamentary national political experience do. Findings support the value of political human-capital theory to understand political promotion.  相似文献   
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Tomas Hauer 《Society》2017,54(2):150-155
In many of his texts French cultural critic, city planner and philosopher Paul Virilio emphasises that speed is not a phenomenon, but a relation between phenomena. The difference between contemporary society and societies of the past consists in the fact that earlier speed used to be mainly connected with transport, now it concerns relations within information. The question of speed is central. Speed and wealth go hand in hand. To give a philosophical definition of speed, we can say that it is not a phenomenon, but rather the relationship between phenomena. In other words, it is relativity itself. Virilio’s influential books analyses new problems resulting from the fact that the development of industrial capitalism has reached the stage in which wealth and power in society have been interconnected with ever increasing speed. In view of Virilio’s statement that wealth is an aspect of speed it has become necessary to consider speed and all its aspects and consequences through a prism of a new discipline – dromology. Dromology originates from the Greek word dromos. Hence dromology is the science of the ride, the journey, the drive, the way. This means that speed and riches are totally linked concepts. And that the history of the world is not only about the political economy of riches, that is, wealth, money, capital, but also about political economy of speed. Text analyzes the two main themes. Firstly, the treatise attempts at an philosophical analysis of – dromology. Dromologic revolutions cause artificial acceleration of speed in the form of steam or combustion engine, or, nowadays, nuclear energy and they immediately form both e.g. waging wars and kinds of communication. The second part of the study discusses the difference between contemporary society and societies of the past. Vehicles of speed create new dromospheric chronology, new tracks and nodal points (ports, roads, airports, telecommunications etc.) through which things, goods, money, weapons, people or information will start flowing within a different structure.  相似文献   
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This article points out the role of perceptions, hereafter referred to as ‘civil– military culture’, that German society holds about the German armed forces. Analysing the discourse in German newspapers concerning Bundeswehr missions abroad since the early 1990s, and the engagement in Afghanistan in particular, it is argued that options to use the military abroad were circumscribed mainly to humanitarian tasks. This was so because German soldiers have been perceived in accordance with the official concept of a ‘citizen in uniform’, which has strong ethical implications, and consequently the Bundeswehr was seen as a humanitarian and rescue organisation. However, since the discourse in 2009 made it clear that the internalised civil–military culture no longer provides adequate guidance regarding how to approach a war-like situation such as that in Afghanistan, the entire German civil–military culture is challenged.  相似文献   
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