La inversión extranjera en el sector bancario Español

Debido a su propia naturaleza, la vocación internacional es consustancial a la actividad bancaria desde sus orígenes y creciente a medida que se intensifican las relaciones comerciales entre los Estados, pudiendo afirmarse en la actualidad que no existe relación comercial de alguna importancia que no se realice en virtud de la intervención de uno o más establecimientos bancarios. Los factores apuntados propician, lógicamente, el establecimiento de la banca fuera de las fronteras de los Estados a fin de hacerse cargo de las necesidades que impone su negocio; dicho establecimiento adoptará a lo largo de la historia formas peculiares, condicionado por esas mismas necesidades y por la práctica estatal en materia de acceso de instituciones de crédit

A note on the computation of the Frobenius number of a numerical semigroup

In this note we observe that the Frobenius number and therefore the conductor of a numerical semigroup can be obtained from the maximal socle degree of the quotient of the corresponding semigroup algebra by the ideal generated by the biggest generator of the semigroup.Comment: Some typos in the introduction have been correcte

Agronomic, economic and ecological aspects of the papaya (Carica papaya) production in Tabasco, Mexico

The cultivation of papaya is important in the tropic because it provides source of income to the farmer within a short time. Statistical data were obtained from farmers located in the Chontalpa, Rios and Centro-Sierra regions; the size of the survey was 67 farmers. The study shows the results of the farmers’ problem in a drastic reduction of their productivity because of the virosis and low prices in commercialization. The farmers were classified into three levels of technology, “low”, “middle” and “high”. The first one covers 88% of the farmers in seasonal conditions in contrast with the high technology that concentrates 4.5% in irrigation conditions. According to the technology used, the fertilizer shows more yields. Economically, the high technology had an internal tax return of 0.43 in comparison with the low technology of 0.25, which means that the investment is recovered with different yields. However, the use of high technology makes the system more competitive. Key words

Comparing use terms in a Spanish and US research university e-journal licenses: recent trends

This paper describes the results of a study to compare contemporary e-journal licenses from two research universities in the United States and Spain in terms of e-reserves, interlibrary loan, text and data mining, authors´ rights and treatment of copyright exceptions, usage statistics, governing law, data privacy, and obligations entailing security. The data include a higher proportion of scholarly society and academic press publishers than earlier license analyses. This analysis compares license terms over time, across publisher types and between the two libraries, and it compares findings with recommendations from model licenses. The results show progress toward model license goals in some areas, but deficiencies in others including self-archiving, usage statistics clauses, and clauses related to e-resource data privacy and library security and disciplinary obligations. Our findings also raise questions about international ILL and governing venue clauses in library licenses outside the North American context

Comparing use terms in a Spanish and US research university e-journal licenses: recent trends

This paper describes the results of a study to compare contemporary e-journal licenses from two research universities in the United States and Spain in terms of e-reserves, interlibrary loan, text and data mining, authors´ rights and treatment of copyright exceptions, usage statistics, governing law, data privacy, and obligations entailing security. The data include a higher proportion of scholarly society and academic press publishers than earlier license analyses. This analysis compares license terms over time, across publisher types and between the two libraries, and it compares findings with recommendations from model licenses. The results show progress toward model license goals in some areas, but deficiencies in others including self-archiving, usage statistics clauses, and clauses related to e-resource data privacy and library security and disciplinary obligations. Our findings also raise questions about international ILL and governing venue clauses in library licenses outside the North American context

Algoritmos de aprendizaje evolutivo y estadístico para la determinación de mapas de malas hierbas utilizando técnicas de teledetección

Este trabajo aborda la resolución de problemas de clasificación binaria utilizando una metodología híbrida que combina la regresión logística y modelos evolutivos de redes neuronales de unidades producto. Para estimar los coeficientes del modelo lo haremos en dos etapas, en la primera aprendemos los exponentes de las funciones unidades producto, entrenando los modelos de redes neuronales mediante computación evolutiva y una vez estimados el número de funciones potenciales y los exponentes de estas funciones, se aplica el método de máxima verosimilitud al espacio de características formado por las covariables iniciales junto con las nuevas funciones de base obtenidas al entrenar los modelos de unidades producto. Esta metodología híbrida en el diseño del modelo y en la estimación de los coeficientes se aplica a un problema real agronómico de predicción de presencia de la mala hierba Ridolfia segetum Moris en campos de cosecha de girasol. Los resultados obtenidos con este modelo mejoran los conseguidos con una regresión logística estándar en cuanto a porcentaje de patrones bien clasificados sobre el conjunto de generalización