Nuevo registro para México de Gleditsia (Leguminosae)

Nuevo cuestionario de emociones positivas para niños

Resumen: El propósito de este trabajo fue diseñar y validar un nuevo instrumento para medir la experiencia emocional positiva de niños de 8 a 12 años de edad. La muestra piloto estuvo conformada por 445 niños (n = 221) y niñas (n = 224), con una media de edad de 9.54 años (DT = 1.25), pertenecientes a diferentes provincias argentinas. La muestra definitiva estuvo integrada por 1046 niños (n = 5...

Ethnobotany in Rayones, Nuevo León, México

BACKGROUND Trough collections of plants and interviews with 110 individuals, an ethnobotanical study was conducted in order to determine the knowledge and use plant species in Rayones, Nuevo Leon, Mexico. The aim of this study was to record all useful plants and their uses, to know whether differences exist in the knowledge about the number of species and uses between women and men, and to know...

Reutilización de datos lingísticos para la creación de un sistema de traducción automática para un nuevo par de lenguas

This work examines various ways to re-use pre-existing linguistic data to quickly generate a machine translation system for a new language pair. In particular, a machine translation system between Portuguese and Catalan based on the Apertium platform (www.apertium.org) has been built from data existing in this platform for translating between Portuguese and Spanish and between Spanish and Catal...

Un nuevo modelo de aprendizaje para el estudio de secuencias de simbolos

Phylogenetic relationships in Gleditsia (Leguminosae) based on ITS sequences.

We used nucleotide sequences from the internal transcribed spacers and 5.8S gene of nuclear ribosomal DNA to test competing phylogenetic and biogeographic hypotheses in Gleditsia. Eleven of 13 Gleditsia species were sampled, along with two species of its sister genus, Gymnocladus. Analyses of ITS data and of a combined data set that included sequences of ITS and two chloroplast genes supported ...