منابع مشابه
Ways to reduce saturated fat intake.
Current dietary guidelines emphasize a reduced intake of total fat. This means that (saturated) fatty acids should be replaced by carbohydrates. But are carbohydrates the optimal replacement? High-carbohydrate diets do indeed lower plasma LDL-cholesterol levels. However, both sugars and complex carbohydrates lower HDL-cholesterol and increase fasting triacylglycerol levels (Mensink & Katan, 198...
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T price for a product may be set too low, causing the seller to leave money on the table, or too high, driving away potential buyers. Contingent pricing can be useful in mitigating these problems. In contingent pricing arrangements, price is contingent on whether the seller succeeds in obtaining a higher price within a specified period. We show that if the probability of obtaining the high pric...
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Convex polyhedra are often used to approximate sets of states of programs involving numerical variables. The manipulation of convex polyhedra relies on the so-called double description, consisting of viewing a polyhedron both as the set of solutions of a system of linear inequalities, and as the convex hull of a system of generators, i.e., a set of vertices and rays. The cost of these manipulat...
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ژورنال
عنوان ژورنال: Nature
سال: 1985
ISSN: 0028-0836,1476-4687
DOI: 10.1038/317192a0