Un modelo global para afrontar la violencia escolar.

El artículo forma parte de una sección de innovación de la revista dedicada monográficamente a la violencia en la escuela

La interacción y la ética de los pequeños (I).

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La interacción y la ética de los pequeños (II).

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La evaluación estatal del Plan de Refuerzo, Orientación y Apoyo (PROA) : análisis tras seis años de evaluación continuada.

Monográfico con el título: 'Políticas públicas de apoyo y refuerzo educativo'. Resumen basado en el de la publicación

Infants sota pressió.

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Different possibilities to learn from the same task

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Ocho relatos, un mismo proyecto

El art??culo forma parte de un dossier titulado: El desaf??o de la diversidad : un est??mulo para el desarrollo profesional

Evaluaci??n longitudinal y de resultados percibidos del??Programa de Acompa??amiento Escolar en Educaci??n??Primaria del PROA

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La heterogeneidad en el libro de viaje Viviendo en la pobreza: una crónica del Cuerpo de Paz

La literatura de viaje ha sido objeto de estudio, más que nada desde una perspectiva poso de -colonial, que se ha dedicado a buscar la relación o complicidad de estos textos con el neoimperialismo o neocolonialismo. Sin embargo, más recientemente se ha examinado la posibilidad en los textos de viaje de ir contracorriente o, en otras palabras, de visibilizar y cuestionar los proyectos neoimperialistas/colonialistas. Hay literatura de viaje que se puede leer desde estas dos perspectivas distintas, pues reúne elementos contradictorios. Por un lado, contiene elementos del discurso neoimperialista/colonialista y, por el otro, elementos que construyen un contra-discurso o una contra narrativa. Viviendo en la pobreza: una crónica del Cuerpo de Paz, escrito por Moritz Thomsen en los años 60 sobre su primera experiencia en Ecuador, manifiesta esta yuxtaposición de elementos opuestos. Por lo tanto, el propósito de este trabajo es identificar y analizar los elementos contradictorios que convierten este libro en un texto heterogéneo. Además, se propone buscar la relación de este texto con la literatura latinoamericana.

Multimetallic ruthenium(II) complexes as electrochemiluminescent labels

Two homometallic complexes containing two and three ruthenium polypyridyl units linked by amino acid lysine (Lys) and the related dipeptide (LysLys) were synthesized and their electrochemical, spectroscopic, and electrochemiluminescence (ECL) properties were investigated. The electrochemical and photophysical data indicate that the two metal complexes largely retain the electronic properties of the reference compound for the separate ruthenium moieties in the two bridged complexes, [4-carboxypropyl-4'-methyl-2,2'-bipyridine]bis(2,2'-bipyridine)ruthenium(II) complex. The ECL studies, performed in aqueous media in the presence of tri-n-propylamine as co-reactant, show that the ECL intensity increases by 30% for the dinuclear and trinuclear complexes compared to the reference. Heterogeneous ECL immunoassay studies, performed on larger dendritic complexes containing up to eight ruthenium units, demonstrate that limitations due to the slow diffusion can easily be overcome by means of nanoparticle technology. In this case, the ECL signal is proportional to the number of ruthenium units. Multimetallic systems with several ruthenium centers may, however, undergo nonspecific bonding,to streptavidin-coated particles or to antibodies, thereby increasing the background ECL intensity and lowering the sensitivity of the immunoassay.

"Oft expectation fails": a time-series analysis of construction starts in the London office market

Expectations of future market conditions are generally acknowledged to be crucial for the development decision and hence for shaping the built environment. This empirical study of the Central London office market from 1987 to 2009 tests for evidence of adaptive and naive expectations. Applying VAR models and a recursive OLS regression with one-step forecasts, we find evidence of adaptive and naïve, rather than rational expectations of developers. Although the magnitude of the errors and the length of time lags vary over time and development cycles, the results confirm that developers’ decisions are explained to a large extent by contemporaneous and past conditions in both London submarkets. The corollary of this finding is that developers may be able to generate excess profits by exploiting market inefficiencies but this may be hindered in practice by the long periods necessary for planning and construction of the asset. More generally, the results of this study suggest that real estate cycles are largely generated endogenously rather than being the result of unexpected exogenous shocks.

How reliable is internet-based self-reported identity, socio-demographic and obesity measures in European adults?

In e-health intervention studies, there are concerns about the reliability of internet-based, self-reported (SR) data and about the potential for identity fraud. This study introduced and tested a novel procedure for assessing the validity of internet-based, SR identity and validated anthropometric and demographic data via measurements performed face-to-face in a validation study (VS). Participants (n = 140) from seven European countries, participating in the Food4Me intervention study which aimed to test the efficacy of personalised nutrition approaches delivered via the internet, were invited to take part in the VS. Participants visited a research centre in each country within 2 weeks of providing SR data via the internet. Participants received detailed instructions on how to perform each measurement. Individual’s identity was checked visually and by repeated collection and analysis of buccal cell DNA for 33 genetic variants. Validation of identity using genomic information showed perfect concordance between SR and VS. Similar results were found for demographic data (age and sex verification). We observed strong intra-class correlation coefficients between SR and VS for anthropometric data (height 0.990, weight 0.994 and BMI 0.983). However, internet-based SR weight was under-reported (Δ −0.70 kg [−3.6 to 2.1], p < 0.0001) and, therefore, BMI was lower for SR data (Δ −0.29 kg m−2 [−1.5 to 1.0], p < 0.0001). BMI classification was correct in 93 % of cases. We demonstrate the utility of genotype information for detection of possible identity fraud in e-health studies and confirm the reliability of internet-based, SR anthropometric and demographic data collected in the Food4Me study.