Louis G. Welt was a man of preeminent stature. To his friends, he played the roles of confidant, counsellor, and when necessary, stern critic. He shared their problems, trials, and tribulations; and he took great pleasure in their accomplishments and achievements. To his students, he was the embodiment of the compleat academician: a sensitive and empathetic physician, a teacher of rare ability-...

Lev M. Brutman was born in Moscow, in the former Soviet Union, on September 25, 1939. He completed his mathematical studies at Moscow State University in 1965. In 1973, he emigrated to Israel. With Nira Dyn as his advisor, Lev obtained a Ph.D. degree at Tel-Aviv University in 1982. The title of his dissertation was ‘‘Operators of polynomial interpolation and alternation: properties, optimality ...

Among the scientists who in various ways paved the way for Laue’s discovery and for Bragg’s determination of crystal structures, there is one who occupies the most important place: E. S. Fedorov (18531919), the eminent Russian crystallographer. His most outstanding achievement is the derivation of the 230 symmetry space groups which now serve as the mathematical basis of structural analysis. Al...

The aim of this paper is to present a solution of the problem 32 posed by K. Denecke and S.L. Wismath in [18]. It is a continuation of common results of the author and Dietmar Schweigert presented in joint papers [34] and [36] – [40]. The results of this paper were partially presented during the conference Trends in Logic III International in Memoriam Andrzej Mostowski, Helena Rasiowa, Cecylia ...

Six colleagues working in the HIV field were killed when their flight en route to Kuala Lumpur was shot down over the Ukraine. This report is drawn from the in memoriam keynote opening address given at the 12th International AIDS Impact conference in Amsterdam in 2015. It highlights their tangible and valued roles in the HIV response and looks forward to the road ahead. It describes the ways in...

Esta sección especial: ASDRÚBAL BAPTISTA, IN MEMORIAM representa un pequeño homenaje desde la visión de algunos profesores Universidad Los Andes-ULA, ya en su condición familiares cercanos, estudiantes o compañeros académico con más 70 años trayectoria esta casa (aunque también ha sido profesor otras instituciones como el Instituto Estudios Superiores Administración-IESA, así universidades Euro...

El presente artículo resume los fundamentos de la teoría estética formulada por Luigi Pareyson. La materia y forma constituyen obra en ellas se da una unión entre lo espiritual material mostrando esencia bello-verdadero trascendencia. percepción sentidos interacción materia-espíritu nos llevará a las fuentes experiencia tanto que del ser. Arvo Pärt manifestará así Berliner Messe Cantus in memor...