Search results for "Analyse"

Analysis of Conflict Datasets and Indicators: The Case of the “Arab Spring”

2017

This chapter contains an analysis of selected indicators of legitimacy, human rights and inequality, as well as information about conflict events for eight African countries affected by the Arab Spring, namely Algeria, Egypt, Libya, Mali, Mauritania, Morocco, Sudan, and Tunisia. The analyses described in this chapter allowed the determination of plausible estimates for input parameters such as legitimacy and welfare inequality, as well as patterns of size, duration and recurrence of conflict events in these countries. These results were used for setting the values of the input parameters, and for analyzing the plausibility of the solutions in the exploration of the agent-based model describ…

L'invectivité entre catégorie pragmatique et discours. Réflexions épistémologiques à partir d'un corpus de discours de haine sur Twitter

2022

[Contexte] Cette proposition s’inscrit, dans la recherche de tradition allemande, à l’intersection entre les travaux en linguistique de discours (au sens donc de Diskurslinguistik, Spitzmüller/Warnke, 2011 ; Felder/Gardt 2015), en pragmatique (des nouveaux médias, Herring / Stein / Virtanen 2013 ; Gautier / Michel sous presse) et de la linguistique juridique (au sens de Rechtslinguistik, Felder / Vögel 2017). Plus particulièrement, elle prend pour objet les discours de haine (Hassrede, Scharloth 2017 ; Meibauer 2013) qu’elle visera à éclairer par rapport aux acquis des recherches sur l’invectivité (Invektivität) dont elle cherchera à interroger le positionnement épistémologique dans le cham…

Toward a cognitive Discourses Semantics. Theoreticals inputs and empirical corpus-based case study in German.

2021

At the intersection between usage-based construction grammar and frame semantics, a cognitive semantic analysis is to be theorized. The present work proposes to develop for this purpose the Cognitive Discourse Analysis model. Discourse is then understood following Michel Foucault as a conceptual system based on linguistic, social and epistemic knowledge. Its linguistic operationalization is achieved through the contribution of textual linguistics and corpus following Dietrich Busse. The aim of such a methodological construction is to finely examine a corpus of recurrent texts in a cognitive perspective, and thus as close as possible to the linguistic reality, and to be able represent the en…

Epidemiological Survey of Grapevine Leafroll-Associated Virus 1 and 3 in Sicily (Italy): Genetic Structure and Molecular Variability

2022

Background: the most widely distributed and virulent Grapevine leafroll-associated viruses (GLRaV) that affect grapevine are GLRaV-1 and GLRaV-3, transmitted semi-persistently by different mealybugs and soft scales, mainly causing downward rolling of the leaf margins and interveinal reddening. Methods: the main objectives of this study were to investigate the genetic structure and molecular diversity of GLRaV-1 and GLRaV-3 in 617 samples from 11 autochthonous Sicilian grapevine cultivars, ascertaining their presence and spread. The detection was implemented by serological and molecular analyses and subsequently phylogenetic analyses on selected Sicilian isolates were conducted. Results: in …

Epistemic network analyses of economics students' graph understanding. An eye-tracking study

2020

Learning to solve graph tasks is one of the key prerequisites of acquiring domain-specific knowledge in most study domains. Analyses of graph understanding often use eye-tracking and focus on analyzing how much time students spend gazing at particular areas of a graph&mdash

Vitesse, accessibilité et étalement urbain ; analyse et application à l'aire urbaine dijonnaise

2003

The set of themes of the city is approached primarily by the means of the residential density. This concept is analyzed from a purely conceptual point of view, then more theoretical (thus making use of rather traditional econometric models: Clark, Newling) for finally being applied to the agglomeration dijonnaise like with its urban surface. One releases the great urban structures thus revealing an intermediate city between the model monocentric and polycentric. The two components are analyzed successively starting from the concept of residential density. Taking as assumption that the cities are dynamic, the second stage is that of urban sprawl out. A first introductory approach attempts to…

Hepatitis C Virus positive patients with persistently normal serum transaminase: a long-term follow-up

2010

Analyse multirésolution pour la recherche et l'indexation d'images par le contenu dans les bases de données images - Application à la base d'images p…

2005

Recent content-based image retrieval systems offer an interactive visual browsing of images databases. These methods perform a classification of images (offline) into a search tree for users browsing (online). This approach shows three main problems:1) The size of decriptor vector (n>100) makes distance computing sensitive to dimensionality curse,2) Having many different kinds of attributes into descriptor vector does not help classification,3) In general, classification does not take in consideration users' search context. In this work, we propose a method based on building hierarchical signatures having small increasing sizes, this allows to take users' search context into consideration. …

Pattern formation in hyperbolic reaction-transport systems and applications to dryland ecology

2023

Pattern formation and modulation is an active branch of mathematics, not only from the perspective of fundamental theory but also for its huge applications in many fields of physics, ecology, chemistry, biology, and other sciences. In this thesis, the occurrence of Turing and wave instabilities, giving rise to stationary and oscillatory patterns, respectively, is theoretically investigated by means of two-compartment reaction-transport hyperbolic systems. The goal is to elucidate the role of inertial times, which are introduced in hyperbolic models to account for the finite-time propagation of disturbances, in stationary and transient dynamics, in supercritical and subcritical regimes. In p…

Semi-blind Source Extraction Methods: Application to the measurement of non-contact physiological signs

2018

Non-contact physiological measurements are highlydesirable in many biomedical fields such asdiagnosis of infants, geriartic patients, patients withextreme physical trauma, and fitness and well-being.Remote photoplethysmography is increasingly beingused for non-contact measurement of heart rate fromvideos which is one of the most common biomedicalproperty required for most medical diagnosis. Oneof the common techniques for performing remotephotoplethysmography involves using Blind SourceSeparation (BSS) methods to extract the cardiacsignal from video data.In this context, the objective of this thesis is todevelop different methods in the field of extractionand separation of sources by improv…