Search results for "IONS"

Courbes de Bézier quadratiques et nombres complexes massiques

2017

International audience; Les courbes de Bézier quadratiques jouent un rôle fondamental pour la modélisation d'arcs de coniques. L'utili-sation de points massiques permet de modéliser des demi-coniques dans le plan affine euclidien ou des surfaces canal dans l'espace de Minkowski-Lorentz. L'utilisation des nombres complexes permet de simplifier beaucoup de raisonnements en géométrie et de simplifier l'utilisation des transformations affines planes. Dans cet article, nous définissons dans un premier temps les nombres complexes massiques et dans un second temps, nous modéli-sons des arcs de coniques en utilisant des courbes de Bézier rationnelles quadratiques avec des points complexes massiques…

PEDAGOGICAL ASSUMPTIONS OF TRANSFORMATIVE DI-GITAL MODEL FOR SOCIAL CHANGE

2019

Creating of digital models which transform learning and its outcomes, as well as the learner’s educational, developmental and educative achievements has become vital to provision of inclusion possibilities in a networked society. Researchers have produced several frameworks of using digital technologies in education, but these are generally do not appropriately incorporate socio-contextual perspectives. To explore this area and create a transformative model of teaching-learning at higher levels of education in Special pedagogy and social work an appropriate pedagogical provisions are needed to transform educational process as a system including: (a) meaningful and transforming objectives, (…

HIPPOCAMPAL REVERSIBLE LESIONS IN A CASE OF TRANSIENT GLOBAL AMNESIA

2013

PURPOSE: We present a case of transient global amnesia (TGA) onset in a 52-year-old male with a medical history of migraine. METHODS: Patient was taken to ER by his colleagues which reported that after an emotional stress he suddenly appeared perplexed and started asking repetitive questions. In ER a neurological examination excluded other neurological signs or symptoms and it was confirmed that cognitive impairment was limited to the amnesia domain; electroencephalography was unremarkable and he had no history of epileptic seizures or head trauma. At the neurologic examination Capland and Hodges criteria were fulfilled and the diagnostic hypothesis of TGA was placed. He underwent to a brai…

Development and functioning of fiscal frameworks in the Central and Eastern European countries

2005

On the effects of transmit power control on the energy consumption of WiFi network cards

2009

Transmit power control has been largely proposed as a solution to improve the performance of packet radio systems in terms of increased throughput, spatial reuse and battery lifetime for mobile terminals. However, the benefits of transmit power control schemes on these different performance figures may strongly depend on the employed PHY technology and channel access mechanism. In this paper, we focus on the effects of power control on the energy consumption of WiFi network cards. By means of several experimental tests carried out under different operation conditions and modulation schemes, we try to justify why the reduction of the transmission power has a marginal effect on the overall en…

STUDY REGARDING THE ATTITUDES TOWARD CORPORATE SOCIAL RESPONSIBILITY OF THE WORLD’S TOP TRANSNATIONAL CORPORATIONS

2012

Transnational corporations (TNCs) are the leading actors of the global economic scene; so their strategic behaviors tend to be followed by their challengers - in search for global competitiveness. Therefore (and in spite of some well known blunders and slippages), Corporate Social Responsibility (CSR) may have the vocation to become a generalized dimension of the corporate strategy - as well as an answer to some of the very thorny problems facing the humankind. The aim of the paper is to analyze the attitudes toward CSR of the world's top TNCs, in order to see if there is a pattern regarding their strategies.

Don't tell us: the demand for secretive bahaviour

2009

International audience

Dealing with viewers’ complaints: Role, visibility and transparency of PSB Ombudsmen in ten European countries

2017

The article shows the results of a comparative analysis of the complaints management mechanisms offered by ten European Public Service Broadcasting (PSB) systems on their corporate websites. Using a qualitative methodology, it maps the procedures and evaluates the visibility, transparency and dissemination of results. The findings show, firstly, great diversity in terms of responsible election and management, despite the converging media governance. Also noteworthy is the margin of substantial improvement in the transparency and dissemination possibilities, specially relating to the interaction offered by the digital environment. Among the ten public corporations analysed, the BBC is the be…

A two-phase insertion technique of unexpected customers for a dynamic dial-a-ride problem

2006

Abstract This work deals with a dynamic dial-a-ride problem with time window constraints. In particular, new unplanned requests for service may arise at a vehicle stop and the driver must decide in real-time whether to accept or reject them. For this problem, we have developed a two-phase insertion algorithm based on route perturbations: the first phase, which is run off-line when the vehicle moves between two successive stops, aims at creating a feasible neighborhood of the current route; while the second phase, which is run in real-time every time a new request occurs, inserts, when possible, the delivery stop of the new customer in the current route.

Energy efficient model for biogas production in farm scale

2011

Energy efficient solutions for six farm biogas production was found by calculating mass and energy balance in different scenarios. Raw materials in biogas production were cow manure and grass silage that were produced in these farms. There were calculated mass and energy balances on average for one year biogas prouduction that consisted of grass silage production, raw material transportation and biogas production in the biogas plant. In addition, direct greenhouse gases from biogas production were estimated. The direct mass and energy flows were calculated. It turned out that one input energy unit can produce 5.0 to 5.5 energy units as heat and electricity. Biogas reactor consumed heat from…