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Researchers struggle to understand the relationship between science and policy positions, especially the complicated interplay among the various factors that might affect the acceptance or rejection of scientific information. This article presents a typology that simplifies and guides research linking scientific information to policy positions. We use the typology to examine how characteristics of both scientific information and policy actors' existing policy positions affect the likelihood of changing, maintaining or reinforcing those policy positions. We analyse data from surveys conducted in 2015 and 2017 of policy actors engaged in contested policy debates over shale oil and gas development in Colorado, US. Our findings confirm expectations that policy actors will most likely maintain and reinforce their policy positions in response to scientific information. Our data also show that changes in policy positions depend on policy actors' risk perceptions, perceived issue contentiousness, networks and experience with science. 相似文献
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Leigh Hlavaty M.D. Jeffery Amley B.S. Kelly Root B.F.A. Sarah Avedschmidt M.D. Andrea Jaworski B.S. LokMan Sung M.D. 《Journal of forensic sciences》2020,65(2):500-507
When interpreting firearm injuries, the distinction between gunshot wounds and shotgun wounds is important, and separation of these categories is typically straightforward. However, .410 bore firearms can make the classification difficult. Shotguns and revolvers that can fire the same .410 bore ammunition are readily available. This study investigates the soot and gunpowder deposits and pellet patterning of these two types of weapons using cartridges specially designed for .410 bore revolvers and standard birdshot pellet ammunition. For both ammunition types, the revolver had more prompt pellet dispersion and positive detection of gunpowder at greater distances compared to the shotgun. Additionally, .410 bore slugs are of similar caliber to many common bullets. In comparing the .410 bore slugs to equivalent bullets, some morphologic differences may be imparted on the skin by the slugs, but the greatest insight into the weapon remained with the retained projectiles. 相似文献
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