We report on a neonate presenting with polyhydramnios; macrosomia; macrocephaly; visceromegaly including bilateral nephromegaly, hepatomegaly, cardiomegaly; thymus hyperplasia; cryptorchidism; generalized muscle hypotonia; and a distinctive facial appearance. The clinical course was marked by severe
On a problem of Andersson and Perlman
โ Scribed by M.A. Steel; G.R. Wood
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 138 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0167-7152
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Perlman syndrome is a rare overgrowth syndrome, thought to be inherited in an autosomal recessive fashion. We describe the sonographic features in two cases, and review the literature.
Let A=[a 1 , a 2 , ...] N and put A(n)= a i n 1. We say that A is a P-set if no element a i divides the sum of two larger elements. It is proved that for every P-set A with pairwise co-prime elements the inequality A(n)<2n 2ร3 holds for infinitely many n # N. ## 2001 Academic Press where A(n)= a i
We shall obtain a result concerning the question 3B of Keisler [6]. If S is a set, then ISl is the cardinality of S. The axiom of choice is assumed throughout. Eor the notion of an ultrafilter over a set S we refer e.g. to Keisler [6], p. 115. Suppose now that ISI =m is infinite and og is an ultrafi