The standardization of the design of learning games is a contradictory topic: The existence of a rich variety of domains and applications is in conflict with the desire for unification that would result in improved reusability, interoperability and reduction of design complexity. In this paper, we describe the use of the ICOPER Reference Model (IRM) specification as foundation layer for the des...

Résumé L’agénésie de la vésicule biliaire est une anomalie congénitale rare. Le but de ce travail est d’étudier, à travers trois cas que nous rapportons, les aspects épidémiologiques de cette affection ainsi que les particularités de diagnostic et de prise en charge thérapeutique. Les 2 adultes ont été admis pour coliques hépatiques et troubles dyspeptiques avec à l’échographie une vésicule scl...

This document suggests the adoption of the Theory of Entrepreneurship by researchers who investigate the use of information systems by small businesses. The majority of existing research into this area tends to adopt results determined from investigations of larger businesses. Thus, the uniqueness of small business is not considered. Concepts such as strategic orientation, decision-making, and ...

We apply the Ionization Region Model (IRM) and Orsay Boltzmann equation for ELectrons coupled with eXcited states kinetics (OBELIX) model to study electron of a high power impulse magnetron sputtering (HiPIMS) discharge. In IRM bulk (cold) electrons are assumed exhibit Maxwellian energy distribution secondary (hot) electrons, emitted from target surface upon ion bombardment, treated as tail, wh...

In online advertising, display ads are increasingly being placed based on realtime auctions where the advertiser who wins gets to serve the ad. This is called real-time bidding (RTB). In RTB, auctions have very tight time constraints on the order of 100ms. Therefore mechanisms for bidding intelligently such as clickthrough rate prediction need to be sufficiently fast. In this work, we propose t...

We consider the following sparse representation problem: represent a given matrix X ∈ IRm×N as a multiplication X = AS of two matrices A ∈ IRm×n (m 6 n < N) and S ∈ IRn×N , under requirements that all m×m submatrices of A are nonsingular, and S is sparse in sense that each column of S has at least n −m + 1 zero elements. It is known that under some mild additional assumptions, such representati...

We examine existing resolution systems for quantified Boolean formulas (QBF) and answer the question which of these calculi can be lifted to the more powerful Dependency QBFs (DQBF). An interesting picture emerges: While for QBF we have the strict chain of proof systems Q-Res < IR-calc < IRM-calc, the situation is quite different in DQBF. The obvious adaptations of Q-Res and likewise universal ...

The Invariant Refinement Method for Self Adaptation (IRM-SA) is a design method targeting development of smart Cyber-Physical Systems (sCPS). It allows for a systematic translation of the system requirements into the system architecture expressed as an ensemble-based component system (EBCS). However, since the requirements are captured using natural language, there exists the danger of their mi...

Dans la prise en charge du cancer de prostate ces dernières années, des thérapies innovantes sont apparues, nécessitant moyens détection précis et fiables maladie. En 2021, les imageries nouvelles générations (TEP-TDM, IRM multiparamétrique, TEP-IRM) ont leur place à toutes étapes l’histoire naturelle pour aider cibler la/les lésion(s), guider améliorer résultats obtenus. La TEP-TDM au PSMA (pr...

The viability of oxygen isotope analysis of tooth enamel by UV laser ablation and fluorination has been demonstrated by comparison with the Ag PO extraction method. In-situ analyses by UV laser fluorination using both isotope ratio mass 3 4 Ž . spectrometry and isotope ratio monitoring gas chromatography mass spectrometry irm-GCMS microanalysis are comparaŽ . 18 ble to those of the Ag PO method...