منابع مشابه
Evaluation of serum zinc changes following the major operations in term neonates who need major operation
Background: This study aimed to investigate the changes of serum zinc in term neonates who need major operation. Materials and Methods: In this study, 59 neonates who need major operation were studied. All patients underwent major surgical with high stress. The metabolic response to surgery was studied by measuring the serum zinc before and after surgery (24 hours and at discharge time postoper...
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We show that, for each finite algebra A, either it has symmetric term operations of all arities or else some finite algebra in the variety generated by A has two automorphisms without a common fixed point. We also show this two-automorphism condition cannot be replaced by a single fixed-pointfree automorphism.
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The yield of sugar beet has continuously increased in the past decades. The question arises, whether this progress will continue in the future. A key factor for increasing yield potential of the crop is breeding progress. It was related to a shift in assimilate partitioning in the plant toward more storage carbohydrates (sucrose), whereas structural carbohydrates (leaves, cell wall compounds) u...
متن کاملMany Empty Triangles have a Common Edge
Given a finite point set X in the plane, the degree of a pair {x, y} ⊂ X is the number of empty triangles t = conv{x, y, z}, where empty means t∩X = {x, y, z}. Define degX as the maximal degree of a pair in X. Our main result is that if X is a random sample of n independent and uniform points from a fixed convex body, then degX ≥ cn/ lnn in expectation.
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It is well-known that every planar or projective planar graph can be 3-colored so that each color class induces a forest. This bound is sharp. In this paper, we show that there are in fact exponentially many 3-colorings of this kind for any (projective) planar graph. The same result holds in the setting of 3-list-colorings.
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ژورنال
عنوان ژورنال: Chemical & Engineering News Archive
سال: 1984
ISSN: 0009-2347,2157-4936
DOI: 10.1021/cen-v062n044.p028