منابع مشابه
The fate of a radio-opaque medium injected into the sciatic nerve.
Considerable controversy exists concerning the relationship between the tissue spaces of the central nervous system and meninges, and those of the remainder of the body. It has been suggested that some materials may reach the central nervous system by routes other than through the hematoencephalic barrier. One suggested pathway is the tissue spaces of peripheral nerves. Other work in this labor...
متن کاملOpaque hemithorax
Complete opacification of a hemithorax on chest X-ray is termed opaque hemithorax (OH) and is a common finding in emergency room patients. Attending physicians encountering an OH should be able to make an immediate decision regarding the most appropriate approach. The differential diagnosis of an OH is primarily based on the volume of the affected hemithorax, as determined by the position of th...
متن کاملMarket Segmentation: the Role of Opaque Travel Agencies the Role of Opaque Travel Agencies
This paper investigates the role of discount travel agencies such as Priceline and Hotwire in the market segmentation of the hotel and airline industries. These agencies conceal important characteristics of the offered services, such as hotel locations or flight schedules. We explicitly model this opaque feature and show that it enables service providers to price discriminate between those cust...
متن کاملSilhouette-Opaque Transparency Rendering
Transparency in 3D graphics has traditionally been created by ordering the transparent objects from back-to-front with respect to the viewpoint, and rendering the opaque objects first and then the transparent objects in the prescribed order. This has three major disadvantages: need for splitting intersecting polygons, repeated ordering for varying view points, and finally, incorrect transparenc...
متن کاملOpaque perfect lenses
The response of the “perfect lens”, consisting of a slab of lossless material of thickness d with εs = μs = −1 at one frequency ω0 is investigated. It is shown that as time progresses the lens becomes increasingly opaque to any physical TM line dipole source located a distance d0 < d/2 from the lens and which has been turned on at time t = 0. Here a physical source is defined as one which suppl...
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ژورنال
عنوان ژورنال: Meta: Journal des traducteurs
سال: 1969
ISSN: 0026-0452,1492-1421
DOI: 10.7202/002924ar