La frontera a alto corrimiento al rojo: historia de la formacio'n de las galaxias [PDF]
This review presents a brief discussion of the theory of Cold Dark Matter of structure formation in the universe, describing the main processes determining the power spectrum, the non-linear gravitational collapse, the formation of galaxies and the evolution of the intergalactic medium. Recent advances in the observations of high redshift galaxies, and
arxiv
Metaanálisis y comparaciones indirectas. Métodos y paradigma: tratamiento biológico de la psoriasis
Resumen: El metaanálisis (MA) permite evaluar la eficacia clínica de un tratamiento al agregar los resultados de varios ensayos clínicos (RCT) preservando la aleatorización; los efectos agregados (con sus intervalos de confianza) pueden representarse ...
L. Puig
doaj
Mitochondrial genealogy of Maria Mercedes Cairol Antunez, footprint of recent immigration to Costa Rica / La genealogia mitocondrial de Maria Mercedes Cairol Antunez, huella de la inmigracion reciente a Costa Rica [PDF]
The technological advances in Genetics have given rise to the science of Molecular Genealogy, by giving us the opportunity to approach the study of pedigrees from a new perspective, examining alive people at the same time than collating records from their ancestors. A four generations matrilineal genealogy is presented from Da. Angela Antunez (b.
arxiv
Brane Worlds, the Subanthropic Principle and the Undetectability Conjecture [PDF]
In the recent article `Conflict between anthropic reasoning and observation'(gr-qc/0303070) Ken D. Olum, using some inflation-based ideas and the anthropic premise that we should be typical among all intelligent observers in the Universe, arrives at the puzzling conclusion that `we should find ourselves in a large civilization (of galactic size) where ...
arxiv
Primos, paridad y análisis [PDF]
Distinguir entre enteros con un n\'umero par o impar de divisores primos es una de las tareas m\'as dif\'iciles en la teor\'ia anal\'itica de n\'umeros. Un trabajo reciente de Matom\"aki y Radziwi{\l}{\l} muestra que, en promedio, ambos existen con la misma frecuencia a\'un en intervalos muy cortos.
arxiv
Estudios sobre rickettasiasis (enfermedades tifo-exantematicas) en Colombia
El hecho trascendental para la salubridad pública de la mortifera epidemia de Verruga en el extremo sur de la república: los casos recientes de Tifo diagnosticados por los clínicos y confirmados por los laboratorios en Bogotá; y más que todo, en el ...
Luis Patiño Camargo
doaj
Towards an open set of regular cosmological models [PDF]
The possibility of obtaining an open set of regular cosmological models is discussed. Cylindrical stiff perfect fluid cosmologies are studied in detail. The condition for geodesic completeness is easy to check. A large family of non-singular models is found therein.
arxiv
Sociophysics in the mexican case (Sociofísica en el caso mexicano) [PDF]
The availability of electoral data in electronic format allowed to physicist and mathematicians their own analysis. Beyond theoretical models for electoral processes, new regularities had been found in the data analysis of many countries and many elections.
arxiv
Building a control sample for galaxy pairs [PDF]
Several observational works have attempted to isolate the effects of galaxy interactions by comparing galaxies in pairs with isolated galaxies. However, different authors have proposed different ways to build these so-called control samples (CS). By using mock galaxy catalogues of the SDSS-DR4 built up from the Millennium Simulation, we explore how ...
arxiv +1 more source
Grados de autonomía: notas sobre la situación externa latinoamericana
Resumen: En diversas publicaciones recientes se puede constatar la mejoría en la situación macroeconómica latinoamericana durante la última década, adjudicando parte de este logro a la situación externa.
Francisco Cantamutto
doaj