Search results for "methods [Neuroimaging]"

Zināšanu vadīšanas metožu pilnveidošana organizācijās

2013

Elektroniskā versija nesatur pielikumus

Complex adaptative systems and computational simulation in Archaeology

2017

Traditionally the concept of ‘complexity’ is used as a synonym for ‘complex society’, i.e., human groups with characteristics such as urbanism, inequalities, and hierarchy. The introduction of Nonlinear Systems and Complex Adaptive Systems to the discipline of archaeology has nuanced this concept. This theoretical turn has led to the rise of modelling as a method of analysis of historical processes. This work has a twofold objective: to present the theoretical current characterized by generative thinking in archaeology and to present a concrete application of agent-based modelling to an archaeological problem: the dispersal of the first ceramic production in the western Mediterranean.

Optimal passive-damping design using a decentralized velocity-feedback H-infinity approach

2012

In this work, a new strategy to design passive energy dissipation systems for vibration control of large structures is presented. The method is based on the equivalence between passive damping systems and fully decentralized static velocity-feedback controllers. This equivalence allows to take advantage of recent developments in static output-feedback control design to formulate the passive-damping design as a single optimization problem with Linear Matrix Inequality constraints. To illustrate the application of the proposed methodology, a passive damping system is designed for the seismic protection of a five-story building with excellent results. Peer Reviewed

Science case study and scientific simulations for the enhanced X-ray Timing Polarimetry mission, eXTP

2022

The X-ray astronomy mission eXTP (enhanced X-ray Timing Polarimetry) is designed to study matter under extreme conditions of density, gravity and magnetism. Primary goals are the determination of the equation of state (EoS) of matter at supranuclear density, the physics in extremely strong magnetic fields, the study of accretion in strong-field gravity (SFG) regime. Primary targets include isolated and binary neutron stars, strong magneticfield systems like magnetars, and stellar-mass and supermassive black holes. In this paper we report about key observations and simulations with eXTP on the primary objectives involving accretion under SFG regimes and determination of NS-EoS.

Computational approach to compact Riemann surfaces

2017

International audience; A purely numerical approach to compact Riemann surfaces starting from plane algebraic curves is presented. The critical points of the algebraic curve are computed via a two-dimensional Newton iteration. The starting values for this iteration are obtained from the resultants with respect to both coordinates of the algebraic curve and a suitable pairing of their zeros. A set of generators of the fundamental group for the complement of these critical points in the complex plane is constructed from circles around these points and connecting lines obtained from a minimal spanning tree. The monodromies are computed by solving the defining equation of the algebraic curve on…

Visualizing linguistic variation in a network of Latin documents and scribes

2018

This article explores whether and how network visualization can benefit philological and historical-linguistic study. This is illustrated with a corpus-based investigation of scribes' language use in a lemmatized and morphologically annotated corpus of documentary Latin (Late Latin Charter Treebank, LLCT2). We extract four continuous linguistic variables from LLCT2 and utilize a gradient colour palette in Gephi to visualize the variable values as node attributes in a trimodal network which consists of the documents, writers, and writing locations underlying the same corpus. We call this network the "LLCT2 network". The geographical coordinates of the location nodes form an approximate map, …

Territoires urbains en transition. Monographie d’un quartier populaire en résilience écologique, Editions Universitaires de Dijon, décembre 2015

2015

National audience; Que faites-vous pour la planète? Vous prenez le vélo pour aller travailler? Vous recyclez des tissus pour fabriquer et peut-être vendre des vêtements? Vous avez choisi une pratique sportive durable dans un club près de chez vous? Vous mangez bio? Vous utilisez les réseaux sociaux pour faire connaître vos éco-gestes à vos voisins ou à l'autre bout du monde? Imaginez... A quoi pourrait ressembler un quartier populaire en 2050, si on ne fait rien pour protéger l’environnement ou, à l'inverse, si on fait tout pour le préserver?Une équipe pluridisciplinaire a enquêté durant deux ans, entre 2012 et 2014, auprès de la population d'un de ces quartiers, la Fontaine d'Ouche, en pro…

Exploratory multiblock data: do they lead to the same results?

2022

Variational Bethe ansatz approach for dipolar one-dimensional bosons

2020

We propose a variational approximation to the ground state energy of a one-dimensional gas of interacting bosons on the continuum based on the Bethe Ansatz ground state wavefunction of the Lieb-Liniger model. We apply our variational approximation to a gas of dipolar bosons in the single mode approximation and obtain its ground state energy per unit length. This allows for the calculation of the Tomonaga-Luttinger exponent as a function of density and the determination of the structure factor at small momenta. Moreover, in the case of attractive dipolar interaction, an instability is predicted at a critical density, which could be accessed in lanthanide atoms.

Guide pratique de biostatistique

2022

A l’aide de clés de détermination simples et de cartes mentales, l’utilisateur de ce guide pratique pourra facilement identifier le test adéquat pour ses données en biologie et en écologie.Ce guide pratique de Biostatistique permet de choisir le test adapté au cas rencontré par l'étudiant ou l'enseignant en biologie. Il comporte plusieurs originalités majeures, notamment, la présentation des différentes étapes pour le choix et la conduite de tests statistiques pertinents, une adaptation du traitement des données sous R. Il inclut, à la fin de chaque chapitre, un arbre décisionnel des tests et des exercices choisis à partir de données biologiques et écologiques réelles tirées de la littératu…