Search results for "formation [jet]"

Motivic Pattern Extraction in Music, and Application to the Study of Tunisian Modal Music

2007

A new methodology for automated extraction of repeated patterns in time-series data is presented, aimed in particular at the analysis of musical sequences. The basic principles consists in a search for closed patterns in a multi-dimensional parametric space. It is shown that this basic mechanism needs to be articulated with a periodic pattern discovery system, implying therefore a strict chronological scanning of the time-series data. Thanks to this modelling global pattern filtering may be avoided and rich and highly pertinent results can be obtained. The modelling has been integrated in a collaborative pro ject between ethnomusicology, cognitive sciences and computer science, aimed at the…

L'ordinateur, outil de productivité de l'enseignant quelle formation initiale en IUFM ?

1992

Les nouvelles technologies de l'information et de la communication – audiovisuel, informatique et télématique – ont connu depuis trente ans en France de grandes actions de mise en oeuvre dans l'enseignement : radio-télévision scolaire, Jeune Téléspectateur Actif, expérimentation « 58 lycées », plan « 10 000 micros », expérimentation « 84 collèges », plan « 100 000 micros », plan IPT, opération « vidéo collège »...Les avancées technologiques de ces dernières années ont favorisé l'évolution des pratiques pédagogiques des enseignants. On est passé progressivement de pratiques indépendantes et isolées de l'informatique, de la télématique et de l'audio visuel à une utilisation combinée qui conce…

Security in Modern Smart Cities: An Information Technology Perspective

2019

In a big and modern city, the security system is not a single-layered single module system. Instead, it consists of many layers with autonomous subsystems which are capable of interfacing reciprocally in an efficient and coordinated way horizontally and vertically. The design of such indigenous subsystems and ensuring tight interaction between them while taking into account high usability and resource utilization is not a simple task. In this regard, this article provides a comprehensive overview of the security systems in smart cities. We begin by introducing trends and key stakeholders in smart cities. Next, we provide examples of mass surveillance systems in developed countries like the …

Simultaneous production of furfural and levulinic acid from pine sawdust via acid-catalysed mechanical depolymerization and microwave irradiation

2019

Abstract In this work pine sawdust was converted into levulinic acid (LA) and furfural. Sawdust was first pre-treated with sulfuric acid-catalysed mechanical depolymerization. The conversion reactions were then performed with microwave heating at 180 °C. To enhance the furfural yield and the efficient separation of furfural and LA, a biphasic water-toluene reaction system was used. The effect of an additional catalyst, AlCl3, on the yield of LA and furfural was also studied. According to the results the pre-treatment method enhanced the yields of LA. In addition, due to the microwave heating the reaction times were short. Additional AlCl3 catalyst enhanced the LA yield, however excellent fu…

How Relevant Are Risk Perceptions, Effort, and Performance Expectancy in Mobile Banking Adoption?

2018

This article provides a comprehensive overview of the adoption process using evidence from m-banking adoption in Pakistan. A survey design was used and 189 responses were received from across Pakistan and analyzed using Smart PLS application. Findings suggest that research on the effect of risk in the adoption process remains inconclusive. Contrarily, consumers have overcome many fears due to the usefulness, indispensability, high security features, and effort expended in the use of financial services delivered through m-banking. Perceived risk's (PR) direct influence was found to be generally weak. However, PR plays a major role in the pre-adoption process because it's weak and direct inhi…

Corrigendum to ““Facebocrastination”? Predictors of using Facebook for procrastination and its effects on students' well-being” [Computers in Human B…

2017

Inhibitory priming in auditory word recognition: Is it really the product of response biases ?

2007

Les études en amorçage phonologique ont révélé des temps de réponse plus lents lorsque des mots cibles sont précédés d’une amorce partageant avec eux les premiers phonèmes. Cependant, l’interprétation de l’effet d’amorçage inhibiteur est source de controverses. Alors que certains auteurs ont interprété l’effet comme reflétant des processus lexicaux, Pitt et Shoaf (2002) ont émis l’hypothèse que l’effet résulterait d’une surprise des participants lorsqu’ils rencontrent le premier essai relié. Pour éviter un tel biais de réponse, nous avons inclus des amorces et des cibles reliées dans la session d’entraînement, et nous avons comparé comme l’ont fait Pitt et  Shoaf, l’amplitude de l’effet sur…

Emotions in Wikipedia: the role of intended negative events in the expression of sadness and anger in online peer production

2018

ABSTRACTThe online encyclopaedia Wikipedia has strict guidelines for ensuring the objectivity of its content and unbiased language of its articles. Wikipedia also provides articles on negative even...

Understanding the price drivers of successful apps in the mobile app market

2016

In this paper, we take the perspective of app developers. Specifically, based on a sample of top paid apps from three major app stores, i.e., App Store, Google Play, and Blackberry World, we construct a hedonic price model to examine the role of relevant factors in price formation in the app market. Our results suggest a strong evidence of two-sided market effects. In fact, the lower price charged for apps operating as two-sided markets reflect the strategy of subsidising users, due to the positive cross-side externalities they exert on valuable third parties. Surprisingly, the effects of trialability, in-app purchase and mechanisms to build reputation are not significant in the context of …

Value Co-Creation and Co-Destruction in an IS Artifact: Contradictions of Geocaching

2016

In this paper we study how value co-creation and value co-destruction are present in an IS artifact. We apply the concept of contradiction (structural tension) to study an IS artifact, geocaching. Based on the analysis of interview data and discussion forum postings, we identified the following contradictions: i) introducing secret society to outsiders, ii) geocaching by breaking its rules, iii) experiencing nature while consuming it, iv) building community occurs with competition. These contradictions show that value co-creation and co-destruction interacts in this IS artifact. Based on the results, we propose that IS research should adopt the concepts of value co-creation and co-destructi…