Search results for "Network"
showing 10 items of 7718 documents
Les frontières de la libre circulation dans le football européen : vers une mondialisation des flux de joueurs?
2005
Les frontières étatiques sont de moins en moins pertinentes pour définir les limites entre territoires souverains. En termes de mobilité des personnes, cependant, bien que parfois déplacées à la périphérie de nouveaux territoires en gestation, elles continuent à jouer un rôle primordial dans le contrôle et la régulation des flux, surtout pour les migrants non qualifiés. Notre article se concentre sur le cas des footballeurs professionnels, une population le plus souvent considérée comme faisant partie d’une élite migratoire bien intégrée dans un marché du travail mondial, pour laquelle les frontières n’ont plus d’importance. En réalité, nous mettons en exergue l’existence de logiques géogra…
Social capital in the international operations of family SMEs
2012
PurposeThe aim of this study is to discuss how social capital is developed in the internationalization process of small and medium‐sized family enterprises (family SMEs).Design/methodology/approachThis paper reports findings from an in‐depth multiple case study with four Finnish manufacturing family SMEs. The data were analyzed through the perspectives of structural holes, network closure, and the interplay between these two mechanisms.FindingsThe material in the paper demonstrated that family entrepreneurs had a large number of structural holes when launching international operations, but also after several years of running international operations. Instead of trying to span structural hol…
Persistence in complex systems
2022
Persistence is an important characteristic of many complex systems in nature, related to how long the system remains at a certain state before changing to a different one. The study of complex systems' persistence involves different definitions and uses different techniques, depending on whether short-term or long-term persistence is considered. In this paper we discuss the most important definitions, concepts, methods, literature and latest results on persistence in complex systems. Firstly, the most used definitions of persistence in short-term and long-term cases are presented. The most relevant methods to characterize persistence are then discussed in both cases. A complete literature r…
The fractal morphology of settlements and transportation networks
1993
International audience
LA FRAGMENTATION DES RÉSEAUX D'INNOVATION ET LA DYNAMIQUE DES SYSTÈMES TERRITORIAUX DE PRODUCTION ET D'INNOVATION DANS LES SECTEURS TRADITIONNELS
2016
Resumen: Para competir en la globalización, los sistemas territoriales de producción en sectores tradicionales deben convertirse en sistemas territoriales de producción y de innovación. Esto supone urdir redes de innovación más complejas entre actores heterogéneos (empresas, universidades, centros tecnológicos, etc.), lo que genera una tensión política de integración/fragmentación de dichas redes. Para contrastar esta hipótesis se combinan los enfoques evolucionista y del actor-red con el enfoque de la proximidad. La construcción de redes de innovación más amplias exige desarrollar nuevas comunidades de práctica. Este proceso puede generar una dinámica de fragmentación por medio del estable…
NASH EVOLUTIONARY ALGORITHMS: TESTING PROBLEM SIZE IN RECONSTRUCTION PROBLEMS IN FRAME STRUCTURES
2016
The use of evolutionary algorithms has been enhanced in recent years for solving real engineering problems, where the requirements of intense computational calculations are needed, especially when computational engineering simulations are involved (use of finite element method, boundary element method, etc). The coupling of game-theory concepts in evolutionary algorithms has been a recent line of research which could enhance the efficiency of the optimum design procedure and the quality of the design solutions achieved. They have been applied in several fields of engineering and sciences, mainly, in aeronautical and structural engineering (e.g: in computational fluid dynamics and solid mech…
Biotic and abiotic soil properties influence survival of Listeria monocytogenes in soil
2013
International audience; Listeria monocytogenes is a food-borne pathogen responsible for the potentially fatal disease listeriosis and terrestrial ecosystems have been hypothesized to be its natural reservoir. Therefore, identifying the key edaphic factors that influence its survival in soil is critical. We measured the survival of L. monocytogenes in a set of 100 soil samples belonging to the French Soil Quality Monitoring Network. This soil collection is meant to be representative of the pedology and land use of the whole French territory. The population of L. monocytogenes in inoculated microcosms was enumerated by plate count after 7, 14 and 84 days of incubation. Analysis of survival pr…
"Semmonen siitä tuli Hitlerinki hommista" : ihmissuhteiden merkitykset skitsofreenistyyppisen psykoosin yhteydessä
2004
Cortical networks show characteristic recruitment patterns after somatosensory stimulation by pneumatically evoked repetitive hand movements in newbo…
2022
Abstract Controlled assessment of functional cortical networks is an unmet need in the clinical research of noncooperative subjects, such as infants. We developed an automated, pneumatic stimulation method to actuate naturalistic movements of an infant’s hand, as well as an analysis pipeline for assessing the elicited electroencephalography (EEG) responses and related cortical networks. Twenty newborn infants with perinatal asphyxia were recruited, including 7 with mild-to-moderate hypoxic–ischemic encephalopathy (HIE). Statistically significant corticokinematic coherence (CKC) was observed between repetitive hand movements and EEG in all infants, peaking near the contralateral sensorimotor…
Adaptive variable structure fuzzy neural identification and control for a class of MIMO nonlinear system
2013
This paper presents a novel adaptive variable structure (AVS) method to design a fuzzy neural network (FNN). This AVS-FNN is based on radial basis function (RBF) neurons, which have center and width vectors. The network performs sequential learning through sliding data window reflecting system dynamic changes, and dynamic growing-and-pruning structure of FNN. The salient characteristics of the AVS-FNN are as follows: (1) Structure-learning and parameters estimation are performed automatically and simultaneously without partitioning input space and selecting initial parameters a priori. The structure-learning approach relies on the contribution of the size of the output. (2) A set of fuzzy r…