Search results for " Direct"
showing 10 items of 943 documents
Huntington: hablar inglés o morir
2004
Champigneulles, Meurthe-et-Moselle, Bonnefontaine. Un établissement sidérurgique médiéval : une forge de l’abbaye Saint-Arnould de Metz ?
2015
La construction d’un second réservoir au lieu-dit Bonnefontaine à Champigneulles a donné lieu à une opération de fouille archéologique menée par l’Inrap du 02 septembre au 15 octobre 2013, en collaboration avec deux chercheurs du CNRS (IRAMAT UMR 5060). Cette opération de 1500 m2 a permis la mise au jour d’une partie d’un établissement métallurgique des XIIIe-XIVe siècles, ainsi que de vestiges d’habitat datés pour la première phase du XIIIe siècle et pour la dernière phase d’occupation des XVIe-XVIIe siècles.Tout d’abord, des bâtiments sur poteaux ont été mis au jour directement sur les formations würmiennes en place. Leurs plans, quoique sans doute incomplets, l’absence de mobilier et les…
La constitution des classes dans les écoles. Contraintes de contexte ou stratégies d'acteurs ?: Rapport intermédiaire pour le PIREF
2005
05004; Analyse des pratiques de constitution des classes (nombre et nature des classes au sein des écoles), puis des modalités d'affectation des élèves et des enseignants dans ces classes et enfin de l'efficacité pédagogique des différents types de groupement réalisés.
Assessing Frequency Domain Causality in Cardiovascular Time Series with Instantaneous Interactions
2009
Summary Background: The partial directed coherence (PDC) is commonly used to assess in the frequency domain the existence of causal relations between two time series measured in conjunction with a set of other time series. Although the multivariate autoregressive (MVAR) model traditionally used for PDC computation accounts only for lagged effects, instantaneous effects cannot be neglected in the analysis of cardiovascular time series. Objectives: We propose the utilization of an extended MVAR model for PDC computation, in order to improve the evaluation of frequency domain causality in the presence of zero-lag correlations among multivariate time series. Methods: A procedure for the identif…
Measuring frequency domain granger causality for multiple blocks of interacting time series
2011
In the past years, several frequency-domain causality measures based on vector autoregressive time series modeling have been suggested to assess directional connectivity in neural systems. The most followed approaches are based on representing the considered set of multiple time series as a realization of two or three vector-valued processes, yielding the so-called Geweke linear feedback measures, or as a realization of multiple scalar-valued processes, yielding popular measures like the directed coherence (DC) and the partial DC (PDC). In the present study, these two approaches are unified and generalized by proposing novel frequency-domain causality measures which extend the existing meas…
Extended causal modeling to assess Partial Directed Coherence in multiple time series with significant instantaneous interactions.
2010
The Partial Directed Coherence (PDC) and its generalized formulation (gPDC) are popular tools for investigating, in the frequency domain, the concept of Granger causality among multivariate (MV) time series. PDC and gPDC are formalized in terms of the coefficients of an MV autoregressive (MVAR) model which describes only the lagged effects among the time series and forsakes instantaneous effects. However, instantaneous effects are known to affect linear parametric modeling, and are likely to occur in experimental time series. In this study, we investigate the impact on the assessment of frequency domain causality of excluding instantaneous effects from the model underlying PDC evaluation. M…
Performance and convergence in municipal waste treatment in the European Union.
2019
This paper assesses performance and convergence in the treatment of municipal waste by the members of the European Union-27 (EU-27) during the period 1995-2016. First, a composite indicator of performance -including landfill, incineration, recycling, and composting and digestion as treatment operations- is computed with Data Envelopment Analysis and Multi-Criteria-Decision-Making techniques at country and year levels. Then, convergence is assessed using the techniques proposed by Phillips and Sul (2007, 2009) and, more recently, by Kong et al. (2017). The best performers are Central and Northern European countries such as Denmark, Austria and Germany, whereas the worst are some Eastern Euro…
El “Contubernio” de Munich
2002
Se trata de una carta al director que enviada a "El País" en protesta por cómo se ha llevado a cabo la celebración del 40 aniversario del Contubernio de Múnich en el Centro de Estudios Políticos y Constitucionales. Se desconoce si finalmente fue publicada.
Sobre AECE y Consejo de Europa
2002
Es una carta al director de José Vidal-Beneyto que trata temas relacionados con la Asociación Española de Cooperación Europea (AECE) y la entrada de España en el Consejo de Europa. Se desconoce si llegó a publicarse y en qué periódico.
NIS-direktiivin kahdet kasvot : riskit ja riskienhallinta
2017
Euroopan unionin verkko- ja tietoturvadirektiivi, eli NIS-direktiivi, annettiin heinäkuussa 2016 ja sitä on sovellettava jäsenvaltioissa viimeistään 10. toukokuuta 2018. Direktiivin tavoitteena on parantaa jäsenmaiden tietoturvaa ja sitä kautta sisämarkkinoiden toimintaedellytyksiä. Se koskettaa suoraan digitaalisia toimijoita ja erikseen määriteltyjä keskeisiä toimijoita, mutta sen vaikutusten voidaan olettaa ulottuvan myös näiden ryhmien ulkopuolelle muun muassa palveluntarjoajiin. Vaikka direktiivi annettiin samoihin aikoihin ja sen soveltaminen aloitetaan myös samoihin aikoihin Euroopan unionin tietosuoja-asetuksen (GDPR) kanssa, on se jäänyt huomattavasti pienemmälle huomiolle kuin tie…