The rectilinear Steiner tree problem requires a shortest tree spanning a given vertex subset in the plane with rectilinear distance. It was proved that the output length of Zelikovsky's 25] and Berman/Ramaiyer 3] heuristics is at most 1.375 and 97 72 1:347 of the optimal length, respectively. It was claimed that these bounds are not tight. Here we improve these bounds to 1.3125 and 61 48 1:271,...

This study investigated the aspectual marking of an event of a fictional story in Japanese and English-language narratives. Considerable differences were found in verbalization between them. The differences are attributed to the linguistic options provided by each language. Japaneseand English-speaking children develop their linguistic proficiency by making use of the expressive options offered...

Leslee J. Shaw, PHD,* Rory Hachamovitch, MD,† Daniel S. Berman, MD,‡ Thomas H. Marwick, MD,§ Michael S. Lauer, MD,§ Gary V. Heller, MD,\ Ami E. Iskandrian, MD,†‡ Karen L. Kesler, MS,¶ Mark I. Travin, MD,# Howard C. Lewin, MD,‡ Robert C. Hendel, MD,** Salvador Borges-Neto, MD,¶ D. Douglas Miller, MD,†† for the Economics of Noninvasive Diagnosis (END) Multicenter Study Group Atlanta, Georgia; New...

Gatt, R. & Berman, E. R. (1966) Anal. Biochem. 16,167-171 Hensten-Pettersen, A. & Jacobsen, N. (1975) Arch. Oral. Biol20,111-114 Martin, F., Mathian, R., Berard, A. & Lambert, R. (1969) Digestion 2,103-112 Pryce-Evans, D. A. (1960)J. Lab. Clin. Med. 55,381-385 Schrager, J. & Oates, M. D. G. (1971) Arch. Oral Biol. 16,1269-1279 Sonju, T. & Rolla, G. (1974) Arch. Oral Biol. 19, 879-882 Warren, L....

Multicenter Experience Evaluating Transcatheter Pulmonary Valve Replacement in Bovine Jugular Vein (Contegra) Right Ventricle to Pulmonary Artery Conduits Brian H. Morray, MD; Doff B. McElhinney, MD; Younes Boudjemline, MD, PhD; Marc Gewillig, MD, PhD; Dennis W. Kim, MD, PhD; Elena K. Grant, MBChB; Martin L. Bocks, MD; Mary H. Martin, MD; Aimee K. Armstrong, MD; Darren Berman, MD; Saar Danon, M...

1 Johns Hopkins Berman Institute of Bioethics and Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America, 2 Department of International Health and Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America, 3 Department of International Health, Johns Hopkin...

A spanning tree T of a graph G is called a homeomorphically irreducible spanning tree (HIST) if T does not contain vertices of degree 2. A graph G is called locally connected if for every vertex v ∈ V (G), the subgraph induced by the neighborhood of v is connected. In this paper, we prove that every connected and locally connected graph with more than 3 vertices contains a HIST. Consequently, w...

Introduction. Several authors have established that many classical codes are ideals in certain ring constructions. Berman [3], in the case of characteristic two, and Charpin [5], in the general case, proved that all generalized Reed-Muller codes coincide with powers of the radical of the quotient ring A = Fq[x1, . . . , xn]/(x q1 1 − 1, . . . , xn n − 1), where Fq is a finite field, p = charFq ...