El presente artículo rescata una carta de Emilio Pardo Bazán en el semanario ElFígaro La Habana, 1984, dirigida a Álvaro la Iglesia por su novela Adoración

We re-consider the quantum mechanics of scale invariant potentials in two dimensions. The breaking of scale invariance by quantum effects is analyzed by the explicit evaluation of the phase shift and the self-adjoint extension method. We argue that the breaking of scale invariance reported in the literature for the δ(r) potential, is an example of explicit and not an anomaly or quantum mechanic...

G. Lhersonneau,* B. Pfeiffer, R. Capote, J. M. Quesada, H. Gabelmann, K.-L. Kratz, and the ISOLDE Collaboration Department of Physics, University of Jyväskylä, P.O. Box. 35, FIN-40351 Jyväskylä, Finland Institut für Kernchemie, Universität Mainz, D-55128 Mainz, Germany Departamento de Fı́sica Atómica, Molecular y Nuclear, Universidad de Sevilla, Facultad de Fı́sica, Apdo 1065, 41080 Sevilla, Espa...

El Instituto Superior de Diseño la Universidad Habana (ISDi), desde su fundación en 1984, es el único centro formador profesionales diseño Cuba.

Sergio Guerra Vilaboy (1949, La Habana) as director of the American History Department University Havana and honorary president Association Historians Latin America Caribbean has developed a prolific career focused on study framework in comparative perspective according to teachings German historian Manfred Kossok. Author numerous publications, his knowledge about Latin-American Cuban historiog...