Abdülmecid b. Nasûh et-Tosyavî el-Amâsî (Ö. 996/1588) ve ʿArafâtü’l- ‘Ârifîn İsimli Eseri

El B-205 En La Puc-rio

This paper presents data and documents relating to Datatron Burroughs B-205, first computer for scientifical purposes to operate in a Brazilian university, installed on the campus of the Catholic University of Rio de Janeiro (PUC-Rio) in 1960. The paper attempts to understand the academic, scientific and symbolic meanings for both history and memory of computer sciences in Brazil and in particu...

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SYNTHESIS OF NOVEL HETEROCYCLIC SYSTEM 4H-IMIDAZO [ 2,l -b] PYRIDO [2,3-el [I, 3,4] THIADIGZIM

Diazotization of 3-amino-2-cMoro pyridine (3) in the presence of dithizone (5) gave dphenyl-2-phenylazo-4H-pyrid[o3 ,2-e] [1,3,4] thiadiazine (6). Reaction of 2- chloro-3-nitropyridine (2, G=H) with (5) dfordd 4-phenyl -2-phenylazo -4Hpyrido [2,3-el [1,3,4] thiadiazine (7). Reduction of the latter with H gas in the presence of Raney nickel gave the corresponding amino derivative (12). One ...

Endothelin ET(A) and ET(B) receptors in postnatal intestine.

We aimed to characterize endothelin (ET) receptors in the swine intestinal vasculature and to determine ischemia-reperfusion (I/R) effects on these receptors. Saturation and competitive binding assays were performed on mesenteric artery protein membranes from 1- and 40-day-old animals, both control and those subjected to 1 h of partial ischemia followed by 6 h of reperfusion in vivo. Scatchard ...