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- LUIS J. ALÍAS, Rafael López
- 1999

In this paper we study stable constant mean curvature surfaces in the Euclidean space R3 with circular boundary. We show that in the case of genus zero, the only such surfaces are the spherical caps and the flat discs. We also extend this result to the case of surfaces in the other space forms, namely the sphere S3 and the hyperbolic space H3.

- Rafael López
- 2002

In this paper we provide a full characterization of the pure-strategy Nash Equilibria for the p-Beauty Contest Game when we restrict player’s choices to integer numbers. Opposed to the case of real number choices, equilibrium uniqueness may be lost depending on the value of p and the number of players: in particular, as p approaches 1 any symmetric profile… (More)

- Ahmad T. Ali, Rafael López
- 2010

We consider a unit speed curve α in the Euclidean ndimensional space E and denote the Frenet frame of α by {V1, . . . ,Vn}. We say that α is a cylindrical helix if its tangent vector V1 makes a constant angle with a fixed direction U . In this work we give different characterizations of such curves in terms of their curvatures. AMS Mathematics Subject… (More)

- Rafael López, Meritxell López-Gallardo, Juliana I. Medina, Magaly Ramos, Galo Ramírez, Carmen Prada
- Journal of neuroscience methods
- 1997

Nerve cell dissociation has become a key procedural tool in the implementation of a number of techniques in cellular and molecular neurobiology. We report that a protease preparation from Streptomyces fradiae (henceforth SF-protease) dissociates viable and morphologically identifiable embryonic and mature neurons and glial cells from the central nervous… (More)

- Jose L Peña-Sagredo, María del Carmen Fariñas, +14 authors Miguel Ángel González-Gay
- Clinical and experimental rheumatology
- 2009

OBJECTIVES
The morbidity and mortality of patients with rheumatic diseases has improved considerably following the use of biologic therapies. However, an increase in the frequency of bacterial infections has been observed in patients receiving these drugs. In the present study we aimed to establish the incidence and clinical manifestations of non-typhi… (More)

- Francisco Prada, Juliana I. Medina, +4 authors Carmen Prada
- The Journal of comparative neurology
- 1999

The chick retina has three types of cholinergic amacrine cells. We have found that Types I and II differentiate from a common population of postmitotic cells temporarily located in the inner plexiform layer (IPL cells). Golgi staining and immunocytochemistry for choline acetyltransferase (ChAT) and gamma-aminobutyric acid (GABA) were used to trace the… (More)

- Jaime Fernández Rico, Rafael López, A. Aguado, Ignacio Ema, Guillermo Ramírez
- Journal of Computational Chemistry
- 1998

- Belal S. Obeidat, Manu G . Thomas, +6 authors Rafael López
- Journal of animal science
- 2002

Understanding metabolic differences between breeds of cattle is important when selecting for production in semiarid environments. Spring-calving multiparous Angus and Brahman cows (n = 8/breed) grazing in the Chihuahuan Desert were used to evaluate metabolic hormone status in February (i.e., 3rd trimester of pregnancy), May (i.e., early lactation), and… (More)

- Rafael López, Sebastián Montiel, Rafael López, Salvador Montiel
- 1999

We give an existence result for constant mean curvature graphs in hyperbolic space Hn+1. Let Ω be a compact domain of a horosphere in Hn+1 whose boundary ∂Ω is mean convex, that is, its mean curvature H∂Ω (as a submanifold of the horosphere) is positive with respect to the inner orientation. If H is a number such that −H∂Ω < H < 1, then there exists a graph… (More)

- Jaime Fernández Rico, Rafael López, Guillermo Ramírez, Ignacio Ema, E. V. Ludeña
- Journal of Computational Chemistry
- 2004

We present analytic refinements and applications of the deformed atomic densities method [Fernández Rico, J.; López, R.; Ramírez, G. J Chem Phys 1999, 110, 4213-4220]. In this method the molecular electron density is partitioned into atomic contributions, using a minimal deformation criterion for every two-center distributions, and the atomic contributions… (More)