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Mostrando ítems 51771-51780 de 52296
Capítulo de Libro
Responsabilidad social de la investigación educativa
(Octaedro, 2020)
En este capitulo se abordan las exigencias que la sociedad actual plantea a la investigación educativa, el concepto de responsabilidad social y la disfuncionalidad entre producción, transferencia y uso del conocimiento ...
Ponencia
La ciencia económica en la actualidad. La inacabable búsqueda de una "situación clásica".
(Asociación Española de Economía Aplicada, ASEPELT, 2005)
La ponencia ofrece una visión esquemática del estado de la ciencia económica en la actualidad, explicitando el grado de desacuerdo que mantienen los muy variados enfoques de análisis con que cuenta la disciplina. Nos ...
Ponencia
Ponencia
Estimación bayesiana del modelo de regresión half-normal con frontera determinista
(Asociación Española de Economía Aplicada, ASEPELT, 2006)
En los modelos de producción con frontera determinista, en los que la estimación máximo verosímil se torna complicada debido a que no se cumplen las hipótesis de regularidad habituales y por tanto se desconocen las ...
Artículo
Assessment of Metals in Sediments in a Tributary of Guadalquivir River (Spain). Heavy Metal Partitioning and Relation Between the Water and Sediment System
(Springer Nature, 2000)
A physical-chemical characterisation of the sediments of the Guadaira River in Southwest Spain has been carried out, determining twenty-three parameters per sample. Non-treated urban sewage and industrial wastewaters from ...
Artículo
Protecting effect of recycled urban wastes (sewage sludge and wastewater) on ryegrass against the toxicity of pesticides at high concentrations
(Elsevier, 2014-09-01)
Degraded landscapes, like those from abandoned mine areas, could be restored by revegetating them with appropriate plant species, after correction for acidity and improvement by adding exogenous organic material. Application ...
Artículo
Influence of rain and other meteorological parameters on trace metals in size fractionated particles in a polluted urban atmosphere
(Orszagos Meteorologiai Szolgalat, 2004)
Relationships between meteorological variables and particles, metals and their size fraction concentrations were determined from samples collected in different climatic situations. Special attention was focused on the ...
Artículo
Solving SUBSET SUM by Spiking Neural P Systems with Pre-computed Resources
(IOS Press, 2008)
Recently the possibility of using spiking neural P systems for solving computationally hard problems has been considered. Such solutions assume that some (possibly exponentially large) pre-computed resources are given in ...
Artículo
P systems with input in binary form
(WORLD SCIENTIFIC PUBL CO PTE LTD, 2006)
Current P systems which solve NP-complete numerical problems represent the instances of the problems in unary notation. However, in classical complexity theory, based upon Turing machines, switching from binary to unary ...
Artículo
Solving the 3-COL problem by using tissue P systems without environment and proteins on cells
(ELSEVIER SCIENCE INC, 2018)
The 3-COL problem consists on deciding if the regions of a map can be coloured with only three colors bearing in mind that two adjacent regions must be coloured with different colors. It is a NP problem and it has been ...