منابع مشابه
Collars and Intestines: Practical Conforming Delaunay Refinement
While several existing Delaunay refinement algorithms allow acute 3D piecewise linear complexes as input, algorithms producing conforming Delaunay tetrahedralizations (as opposed to constrained or weighted Delaunay tetrahedralizations) often involve cumbersome constructions and are rarely implemented. We describe a practical construction for both “collar” and “intestine”-based approaches to thi...
متن کاملCash Constraints and Credit Corsets: The Chimera of Interenterprise Credit
Consider (with apologies to Adam Smith) an efficient pin producer selling half her production in the convertible currency market (where buyers are picky) and the rest in the domestic market to inefficient, financially shaky (state-owned) enterprises. The pins are similar but not identical, with only good pins sold in the convertible currency market and both good and bad pins in the domestic mar...
متن کاملThe use of lumbosacral corsets prescribed for low back pain.
Two hundred and one randomly selected patients (109 women and 92 men) fitted with their first lumbosacral corset because of low back pain were interviewed 3.5--4.5 years later. Two-thirds of the patients were 41--70 years when fitted with the corset. Barely three-quarters of them wore the corset regularly immediately after prescription. One-fifth became symptom-free within the period covered by...
متن کاملLumbar corsets can decrease lumbar motion in golf swing.
Swinging a golf club includes the rotation and extension of the lumbar spine. Golf-related low back pain has been associated with degeneration of the lumbar facet and intervertebral discs, and with spondylolysis. Reflective markers were placed directly onto the skin of 11young male amateur golfers without a previous history of back pain. Using a VICON system (Oxford Metrics, U.K.), full golf sw...
متن کاملLarge Livestock Protection Collars Effective against Coyotes
A small (30-ml 1080 solution) livestock protection (LP) collar has been registered by the U.S. Environmental Protection Agency (EPA) to help control coyote (Canis latrans) predation on sheep and goats. However, the small collar does not adequately cover the throats of large livestock. We pen tested large (60-ml 1080 solution) LP collars on large sheep for effectiveness against coyotes and deter...
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ژورنال
عنوان ژورنال: BMJ
سال: 1988
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.296.6625.862