منابع مشابه
Spiralling Medical Costs: Why Canada Needs NICE Medicine.
Healthcare spending in Canada has grown rapidly in recent years, especially for drugs. This paper discusses the causes of the problem and makes policy proposals. Conflicts of interest (COIs) are a frequent occurrence in medical research and lead to bias. Published studies, especially in the area of clinical trials on drugs, are much more likely to produce findings favourable to the drug when fu...
متن کاملSpiralling out
by human activity is easily understood, though difficult to halt: the spectacular decline in once-common species that ranged over vast areas of diverse habitats proved initially a much more difficult problem to understand. An example of this is the extraordinary reduction in numbers of three Asian vultures — the Oriental white-backed (Gyps bengalensis), long-billed (Gyps indicus) and slender-bi...
متن کاملFolding and Spiralling: The Word View
We show that for every n there are two simple curves on the torus intersecting at least n times without the two curves folding or spiralling with respect to each other.
متن کاملSpiralling and Folding: The Word View
We show that for every n there are two simple curves on the torus intersecting at least n times without the two curves folding or spiralling with respect to each other. On the other hand, two simple curves in a punctured plane that intersect at least n times (and do not create any empty bigons) must either form a spiral of depth d or a fold of width cn/(d + 1) − 1, where c only depends on the n...
متن کاملTotal Curvature and Spiralling Shortest Paths
This paper gives a partial confirmation of a conjecture of Agarwal, Har-Peled, Sharir, and Varadarajan that the total curvature of a shortest path on the boundary of a convex polyhedron in R3 cannot be arbitrarily large. It is shown here that the conjecture holds for a class of polytopes for which the ratio of the radii of the circumscribed and inscribed ball is bounded. On the other hand, an e...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: British Dental Journal
سال: 2010
ISSN: 0007-0610,1476-5373
DOI: 10.1038/sj.bdj.2010.113