Search results for "Information Science"
showing 10 items of 3627 documents
« Les enjeux corporels d’une thérapie psychomotrice : une approche sémiotique de la psychose »
2010
International audience
Challenge types in gaming validation of video game challenge inventory (CHA)
2020
Challenge is a key motivation for videogame play. But what kind of challenge types videogames include, and which of them players prefer? This article helps to answer the above questions by developing and validating Videogame Challenge Inventory (CHA), a psychometrically sound measurement for investigating players’ challenge preferences in videogames. Based on a review of literature, we developed a 38-item version of CHA that was included in a social media user survey (N = 813). An exploratory factor analysis (EFA) revealed a latent structure of five challenge types: Physical, Analytical, Socioemotional, Insight, and Foresight. CHA was amended in another EFA with USA-based survey data (N = 5…
L’injonction participative au débat environnemental en ligne : Imaginaires d’Internet, démocratie environnementale et communication engageante
2013
What communication devices could be used to mobilize and assist citizens in eco-friendly consumption? How users will appropriate these devices and thus will participate to public discussions? Based on these functionalist issues, which are the core of an action research that we ‘re leading, we propose a critic study of participatory injunction. This injunction deals with Internet imaginary and sustainable development precepts.
La transparence dans les communautés virtuelles.
2005
10 pages; National audience
Enhancing identification of causal effects by pruning
2018
Causal models communicate our assumptions about causes and effects in real-world phe- nomena. Often the interest lies in the identification of the effect of an action which means deriving an expression from the observed probability distribution for the interventional distribution resulting from the action. In many cases an identifiability algorithm may return a complicated expression that contains variables that are in fact unnecessary. In practice this can lead to additional computational burden and increased bias or inefficiency of estimates when dealing with measurement error or missing data. We present graphical criteria to detect variables which are redundant in identifying causal effe…
Experimental Engineering of Arbitrary Qudit States with Discrete-Time Quantum Walks
2019
The capability to generate and manipulate quantum states in high-dimensional Hilbert spaces is a crucial step for the development of quantum technologies, from quantum communication to quantum computation. One-dimensional quantum walk dynamics represents a valid tool in the task of engineering arbitrary quantum states. Here we affirm such potential in a linear-optics platform that realizes discrete-time quantum walks in the orbital angular momentum degree of freedom of photons. Different classes of relevant qudit states in a six-dimensional space are prepared and measured, confirming the feasibility of the protocol. Our results represent a further investigation of quantum walk dynamics in p…
Molecular Mechanisms of the Blockage of Glioblastoma Motility
2021
Glioblastoma (GBM) is the most common and lethal brain tumor. GBM has a remarkable degree of motility and is able to infiltrate the healthy brain. In order to perform a rationale-based drug-repositioning study, we have used known inhibitors of two small Rho GTPases, Rac1 and Cdc42, which are upregulated in GBM and are involved in the signaling processes underlying the orchestration of the cytoskeleton and cellular motility. The selected inhibitors (R-ketorolac and ML141 for Cdc42 and R-ketorolac and EHT 1864 for Rac1) have been successfully employed to reduce the infiltration propensity of GBM in live cell imaging studies. Complementarily, all-atom simulations have elucidated the molecular …
Rédiger pour être publié ! 2e édition 2012
2012
Publish or perish. This saying clearly exemplifies that science communication is vital for scientists, research bodies and nation competitiveness. Nowadays both computers and internet have deeply changed the way scientific articles are written and published. In an editorial world moving at accelerated pace, scientists are eager to get their papers published in the best journals because impact factors are ruling careers and funding. Since fundings are provided by various public and private bodies, scientific papers should be partly understandable by a wide audience from journalists to entrepreneurs, political leaders and the general public. However, as an editor of scientific journals, I obs…
Communication et médiation par le toucherdans quelques expositions de sciences : Limites et contraintes dans l’expérience des visiteurs
2016
This communication deals with the “general public” of visitors to a number of interactive exhibits that accord a direct or indirect role to the sense of touch in knowledge mediation and interpretation. The role of touch is discussed in terms of its limitations and constraints in communication situations. The social mobilizations of touch are not immediately evident; what are the conditions under which visitors actually use touch in experiencing an exhibit? What connections with other signifiers are the most conducive to reception? This qualitative research relies on observation and interviews. Apprehension of interactive objects appears to be dependent on the surrounding setting of sociabil…
Les non-publics de la culture. Une approche ethnographique de situations de réception demi-contraintes
2013
Photographic exhibitions are organized today "outdoor"; I study the "non-public" (Ancel & Pessin, 2004): the absents. What are the factors hindering the encounter with the works despite their urban exposure? The article attempts to study the performances of culture that are forged by the respondents (migrants from the lower classes) during outings organized by community centers or municipal associations. To understand why photographic exhibitions fail to mobilize some, I observe in fact that the last prefer other cultural events. Using two case studies (a contemporary dance show, a play), I show that the contact of some actors with culture lead to misunderstandings or misconceptions that me…