On the Ancestral Compatibility of Two Phylogenetic Trees with Nested Taxa

Compatibility of phylogenetic trees is the most important concept underlying widely-used methods for assessing the agreement of different phylogenetic trees with overlapping taxa and combining them into common supertrees to reveal the tree of life. The notion of ancestral compatibility of phylogenetic trees with nested taxa was introduced by Semple et al in 2004. In this paper we analyze in detail the meaning of this compatibility from the points of view of the local structure of the trees, of the existence of embeddings into a common supertree, and of the joint properties of their cluster representations. Our analysis leads to a very simple polynomial-time algorithm for testing this compatibility, which we have implemented and is freely available for download from the BioPerl collection of Perl modules for computational biology.Comment: Submitte

Signos radiológicos y ecográficos asociados al síndrome de hiperadrenocorticismo en perros

Aunque el diagnostico de hiperadrenocorticalismo se confirma habitualmente por test endocrinos, radiologia y ecografia aportan datos en los pacientes que permiten realizar una valoracion clinica mas concreta. Este articulo revisa los cambios radiográficos y ecográficos que pueden aparecer en perros con hiperadrenocorticalismo

Fracturas del primer metatarsiano. Valoración funcional a largo plazo

Hemos revisado la evolución y resultado final de 24 fracturas del primer metatarsiano tratadas y seguidas en nuestro Hospital «La Fe» de Valencia, durante el periodo comprendido entre 1982 y 1993. Los tratamientos fueron mediante osteosíntesis con agujas de Kirschner y enyesado en 10 casos y con enyesado solamente en 14 pacientes. Las causas más frecuentes fueron los accidentes de tráfico en un 66%. Las fracturas abiertas correspondieron al 37%. Los resultados tras un seguimiento medio de 7 años fueron malos en el 86% de los tratamiento conservadores y en el 70% de los tratamientos quirúrgicos. Las secuelas más frecuentes fueron las metatarsalgias en un 4 1 % de los pacientes.We reviewed the final results in 24 fractures of the first metatarsal bone treated in our hospital during a two-year period (1982-1983). The treatment consisted of Kirschner's wire fixation and plaster cast in 10 cases and only casting in 14 patients. The most frequent cause of fracture was traffic accident (66% of the cases). Open fractures were found in 37% of the cases. The results after a follow-up period of 7 years were poor in 86% of the conservative treatments and in 70% of the surgical treatments. The most frequent sequela was metatarsalgia in 41 % of the patients

Clinical Depression: A Transpersonal Point of View

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