An intestinal concretion (enterolith) was recovered during necropsy of a horse from Medina County, Ohio. The object is approximately spherical in shape and measures 9 X 8 X 7 cm in diameter. It is composed of struvite (NH4MgPO4 • 6H2O). The monohydrate dittmarite was not found. In addition to Mg and P, significant concentrations (^500 ppm) of Ca, K, and Fe and lesser amounts (^500 ppm) of Na, M...

As is well known, a horseshoe map, i.e. a special injective reimbedding of the unit square I2 in R2 (or more generally, of the cube I in R) as considered first by S. Smale [5], defines a shift dynamics on the maximal invariant subset of I2 (or I). It is shown that this remains true almost surely for noninjective maps provided the contraction rate of the mapping in the stable direction is suffic...

We resolve the kinematic distance ambiguity for 266 inner Galaxy H ii regions out of a sample of 291 using existing H i and CO sky surveys. Our sample contains all H ii regions with measured radio recombination line (RRL) emission over the extent of the CO Boston University—Five College Radio Astronomy Observatory Galactic Ring Survey (18 < l < 55 and |b| < 1) and contains ultra compact, compac...

Let G be a locally compact Abelian group; I’ the dual group of G; CO(l_’)the algebra of continuous functions on r which vanish at infinity; CB(17)the continuous, bounded functions on r; M(G) the algebra of bounded Borel measures on G; Ll(G) the algebra of absolutely continuous measures; and M(G)A the algebra of l?ourier-Stielt jes transforms. Let E denote a compact subset of I’, and let A(E) be...

Let L be a real (Hausdorff) topological vector space. The space %[L] of nonempty compact subsets of L forms a (Hausdorff) topological semivector space with singleton origin when 3C[L] is given the uniform (equivalently, the finite) hyperspace topology determined by L. Then %[L] is locally compact iff L is so. Furthermore, 90.[Z,], the set of nonempty compact convex subsets of L, is the largest ...

Let K be a compact subset of R " with K=~nt K. Necessary conditions on an n-dimensional subspace U, of C(K) are given so that for each f~ C(K) there exists a unique best L'(w)-approximation from U,,, for every fixed positive weight function w. Let K be a compact subset of R ". For convenience we assume that K= int K. W will denote the set of bounded, integrable functions on K for which inf(w(x)...

We prove that every fragmentable linearly ordered compact space is almost totally disconnected. This combined with a result of Arvanitakis yields that every linearly ordered quasi Radon-Nikodým compact space is Radon-Nikodým, providing a new partial answer to the problem of continuous images of Radon-Nikodým compacta. It is an open problem posed by Namioka [8] whether the class of Radon-Nikodým...

Thirteen wine assortments from Romania were investigated from the point of view of their metal content and isotopic ratios Pb/Pb and Sr/Sr. The determination was performed by ICP-QMS. The aim of this study was to detect and quantitatively determine the toxic metals in some white and red wine samples and to investigate them from the point of view of isotopic ratios Pb/Pb and Sr/Sr. Six metals wi...