Caracter??sticas de los intereses inventariados y expresados en Educaci??n Secundaria

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Implicaci??n y regulaci??n del trabajo del alumnado en los sistemas de evaluaci??n formativa en educaci??n superior

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Liderazgo para el aprendizaje : ??qu?? tareas de los directores y directoras escolares son las que m??s inciden en el aprendizaje de los estudiantes?

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El papel de las TIC en las pr??cticas de los profesores de educaci??n primaria en Portugal : estudio exploratorio

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Leer para escribir, leer para hablar

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Percepci??n del profesorado y responsables acad??micos sobre el proceso de implantaci??n del Espacio Europeo de Educaci??n Superior en diversas titulaciones de educaci??n

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La beca 6000 en Andaluc??a : pol??tica, discurso y pr??cticas

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Presencia del libro de texto digital en Galicia : una mirada estad??stico-geogr??fica del proyecto E-DIXGAL

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El teorema de Fermat de l'educaci?? : conciliaci?? entre l'horari familiar, laboral i acad??mic

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Disseny d’una metodologia per conèixer el perfil dels usuaris del turisme rural a les comarques de Girona

Treball final de carrera què vol determinar quins mètodes haurà de seguir l’ Associació de Turisme Rural Girona per conèixer el perfil del turista rural a les comarques gironines. En aquesta investigació es determina quin és el model d’ enquesta a seguir i la seva correcta distribució

Fronts from complex two-dimensional dispersal kernels: theory and application to Reid's paradox

Bimodal dispersal probability distributions with characteristic distances differing by several orders of magnitude have been derived and favorably compared to observations by Nathan [Nature (London) 418, 409 (2002)]. For such bimodal kernels, we show that two-dimensional molecular dynamics computer simulations are unable to yield accurate front speeds. Analytically, the usual continuous-space random walks (CSRWs) are applied to two dimensions. We also introduce discrete-space random walks and use them to check the CSRW results (because of the inefficiency of the numerical simulations). The physical results reported are shown to predict front speeds high enough to possibly explain Reid's paradox of rapid tree migration. We also show that, for a time-ordered evolution equation, fronts are always slower in two dimensions than in one dimension and that this difference is important both for unimodal and for bimodal kernels

A quantum molecular similarity analysis of changes in molecular electron density caused by basis set flotation and electric field application

Quantum molecular similarity (QMS) techniques are used to assess the response of the electron density of various small molecules to application of a static, uniform electric field. Likewise, QMS is used to analyze the changes in electron density generated by the process of floating a basis set. The results obtained show an interrelation between the floating process, the optimum geometry, and the presence of an external field. Cases involving the Le Chatelier principle are discussed, and an insight on the changes of bond critical point properties, self-similarity values and density differences is performed

A comparative analysis by means of quantum molecular similarity measures of density distributions derived from conventional ab initio and density functional methods

A procedure based on quantum molecular similarity measures (QMSM) has been used to compare electron densities obtained from conventional ab initio and density functional methodologies at their respective optimized geometries. This method has been applied to a series of small molecules which have experimentally known properties and molecular bonds of diverse degrees of ionicity and covalency. Results show that in most cases the electron densities obtained from density functional methodologies are of a similar quality than post-Hartree-Fock generalized densities. For molecules where Hartree-Fock methodology yields erroneous results, the density functional methodology is shown to yield usually more accurate densities than those provided by the second order Møller-Plesset perturbation theory

Charge transfer in DNA: hole charge is confined to a single base pair due to solvation effects

We include solvation effects in tight-binding Hamiltonians for hole states in DNA. The corresponding linear-response parameters are derived from accurate estimates of solvation energy calculated for several hole charge distributions in DNA stacks. Two models are considered: (A) the correction to a diagonal Hamiltonian matrix element depends only on the charge localized on the corresponding site and (B) in addition to this term, the reaction field due to adjacent base pairs is accounted for. We show that both schemes give very similar results. The effects of the polar medium on the hole distribution in DNA are studied. We conclude that the effects of polar surroundings essentially suppress charge delocalization in DNA, and hole states in (GC)n sequences are localized on individual guanines

Pla de gestió de l’illa de Portlligat i diagnosi de flora a la badia

L’illa de Portlligat és un exemple de les conseqüències que la flora invasora pot comportar a primera línia de la costa. El gran recobriment que ocupa Carpobrotus sp. ha provocat una disminució de la riquesa i composició florística, posant en perill algunes espècies de gran interès. La redacció i aplicació d’una pla de gestió, ha de ser l’eina adequada per retornar l’espai al seu estat ecològic òptim. Paral.lelament, es realitza també una cartografia detallada sobre la distribució de la flora al.lòctona de la badia de Portlligat per avaluar l’impacte que la flora exòtica provoca a l’espai