463 research outputs found
Movement trajectories as a window into the dynamics of emerging neural representations
No full textdata and code for
Koenig-Robert R., Quek G., Grootswagers T., Varlet M. (2024). Movement trajectories as a window into the dynamics of emerging neural representations. Scientific Reports, 14, 11499 https://doi.org/10.1038/s41598-024-62135-
Human Perception of Art in the Age of Artificial Intelligence
No full textMaterials for https://osf.io/preprints/psyarxiv/kvsu3
van Hees, J., Grootswagers, T., Quek, G., & Varlet, M. (2023, November 22). Human Perception of Art in the Age of Artificial Intelligence. Retrieved from osf.io/preprints/psyarxiv/kvsu
Human Perception of Art in the Age of Artificial Intelligence
No full textMaterials for https://osf.io/preprints/psyarxiv/kvsu3
van Hees, J., Grootswagers, T., Quek, G., & Varlet, M. (2023, November 22). Human Perception of Art in the Age of Artificial Intelligence. Retrieved from osf.io/preprints/psyarxiv/kvsu
Visual histological grading system for the evaluation of in vitro-generated neocartilage
No full textHere we present the development of a visual evaluation system for routine assessment of in vitro-engineered cartilaginous tissue. Neocartilage was produced by culturing human articular chondrocytes in pellet culture systems or in a scaffold-free bioreactor system. All engineered tissues were embedded in paraffin and were sectioned and stained with Safranin O-fast green. The evaluation of each sample was broken into 3 categories (uniformity and intensity of Safranin O stain, distance between cells/amount of matrix produced, and cell morphology), and each category had 4 components with a score ranging from 0 to 3. Three observers evaluated each sample, and the new system was independently tested against an objective computer-based histomorphometry system. Pellets were also assessed biochemically for glycosaminoglycan (GAG) content. Pellet histology scores correlated significantly with GAG contents and were in agreement with the computer-based histomorphometry system. This system allows a valid and rapid assessment of in vitro-generated cartilaginous tissue that has a relevant association with objective parameters indicative of cartilage quality
The Lattice of Varieties of Distributive Pseudo-Complimented Lattices
No full textThe lattice of varieties of distributive
pseudo-complemented lattices is completely described, viz. a chain
of type W + 1. Moreover, each variety is determined by a single
equation in addition to those equations which define distributive
pseudo-complemented lattices. Characterizations of distributive
pseudo-complemented lattices satisfying a certain equation are
given which turn out to be generalizations of L. Nachbin's result
for Boolean algebras and the results for Stone algebras obtained
by G. Gratzer-E. '11. Schmidt and J. C. Varlet. ThesisDoctor of Philosophy (PhD
Virtual Reality as a Tool to Learn Interpersonal Coordination: Example of Team Rowing
No full textThe success of interpersonal activities strongly depends on the coordination between our movements and those of others. Learning to coordinate with other people requires a long training time and is often limited by the difficulty to have people available at the same time and to give them accurate and real-time feedbacks about their coordination. Using virtual reality and motion capture technologies, we investigated in an indoor team rowing situation the possibility for participants (i) to learn the skill of interpersonal coordination when training with a virtual teammate, (ii) to transfer it to synchronizing situations with a real teammate, and (iii) to accelerate learning with a real-time visual feedback. Our results show that participants improved their coordination with both virtual and real teammates, and that this improvement was better for participants who received the feedback. Generally our results demonstrate the interest of virtual reality for learning the coordination with other people and open promising training perspectives for team rowing but also for several other interpersonal activities
Dynamique des interconnexions des réseaux de transports rapides en Europe : devenir et diffusion spatiale d’un concept géographique
No full textTen years after being highlighted, the concept of trinomial of interconnection relating to integration of the transport systems in Europe deserves a development insofar as such the amount of research on the interconnection processes and the number of trinomial knew of multiple development. The article first of all reconsiders the nature of the conceptas a place of articulation of heterogeneous networks, its structural components and its essential elements of tionality, bases of distinction of the two types of trinomial, one complete and the other integral one. It then tries to understand the reasons of the emergence of such intermodal nodes, the factors of explanation concerning economic, territorial or institutional logics. But, in front of the extent of the field of research thus traversed by several teams and vis-a-vis the diversity of the studies undertaken on the topic of the interconnection, necessary realignments as well as the integration of the concept in a widened corpus are essential then. Passing finally from the local scale on a European scale, the author endeavours to peel the process of diffusion of this innovation, in his diachronic dimension and his spatial extension, using some maps, by identifying the elements of the process, by breaking up the forms of the propagation and by describing phenomena of barrier.Dix ans après avoir été mis en évidence, le concept de trinôme d'interconnexion relatif à l'intégration des réseaux de transport en Europe mérite une mise au point dans la mesure où tant les recherches sur l'interconnexion que le nombre de trinômes ont connu de multiples développements. L'article revient tout d'abord sur la nature du concept comme lieu d'articulation de réseaux hétérogènes, ses composantes structurelles et ses indispensables éléments de fonctionnalité, bases de distinction des deux types de trinômes, l'un complet et l'autre intégral. Il tente ensuite de comprendre les raisons de l'apparition de tels nœuds intermodaux, les facteurs d'explication relevant de logiques économiques, territoriales ou encore institutionnelles. Mais devant l'étendue du champ de recherche ainsi parcouru par plusieurs équipes et face à la diversité des études menées sur le thème de l'interconnexion, s'imposent alors de nécessaires recadrages et intégration du concept dans un corpus élargi. Passant enfin de l'échelle locale à l'échelle européenne, l'auteur s'attache à décortiquer le processus de diffusion de cette innovation, dans sa dimension diachronique et dans son extension spatiale, cartes à l'appui, en identifiant les éléments du processus, en décomposant les formes de la propagation et en décrivant des phénomènes de barrière.Varlet Jean. Dynamique des interconnexions des réseaux de transports rapides en Europe : devenir et diffusion spatiale d’un concept géographique. In: Flux, n°41, 2000. pp. 5-16
Technical standardization of laparoscopic repair of Morgagni diaphragmatic hernia in children: results of a multicentric survey on 43 patients
No full textDiscovering planets with PLATO: Comparison of algorithms for stellar activity filtering
No full textContext. To date, stellar activity is one of the main limitations in detecting small exoplanets via the transit photometry technique. Since this activity is enhanced in young stars, traditional filtering algorithms may severely underperform in attempting to detect such exoplanets, with shallow transits often obscured by the photometric modulation of the light curve.
Aims. This paper aims to compare the relative performances of four algorithms developed by independent research groups specifically for the filtering of activity in the light curves of young active stars, prior to the search for planetary transit signals: Notch and LOCoR (N&L), Young Stars Detrending (YSD), K2 Systematics Correction (K2SC), and VARLET. Our comparison also includes the two best-performing algorithms implemented in the Wōta
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