منابع مشابه
The Leiden Thrombophilia Study (LETS).
Our study grew from an attempt to solve a controversy. In 1987 protein C antigen level was assessed in a large cohort of healthy blood donors (1). Subjects in this cohort who were heterozygous for protein C deficiency did not suffer from venous thromboembolism. Family studies in four of the protein C deficient individuals showed autosomal inheritance of the defect. These findings seemed in cont...
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A trip-let is an object as shown on the cover of Hofstadter’s book Gödel, Escher, Bach: a solid, threedimensional object that, when viewed from three orthogonal directions, shows three different letters. In this paper we consider two problems related to the construction of such objects for a given set of three letters. First, we want to know whether the silhouettes of the object correspond to t...
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In eukaryotes the arrangement of genes along the chromosome is not as random as it at first appeared, and distinctive clusters of functionally related but non-homologous genes can be found in the genomes of certain animals and fungi. These include the major histocompatibility complex in mammals and gene clusters for nutrient use and secondary metabolite production in fungi. A growing number of ...
متن کاملOn Desugaring Polymorphic Lets
Existing type literature has conflicting views on desugaring polymorphic lets to lambda terms. The conflict arises because, in certain cases, desugaring does not preserve typing. We describe a transformation of polymorphic lets to monomorphic lets such that, when the monomorphic lets are desugared, the typing is preserved. Our transformation requires no changes to either term or type syntax. Th...
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ژورنال
عنوان ژورنال: Open Schools Journal for Open Science
سال: 2020
ISSN: 2623-3606
DOI: 10.12681/osj.23429