Résultats de recherche

Ce colloque-atelier résidentiel se déroule du 2 au 6 septembre 2024 au Gîte du domaine d'Haugimont (propriété de l’Université de Namur) et traite des manuscrits médiévaux dans leurs aspects matériels et historiques (fabrication du parchemin et des encres). Cet évènement s’adresse à des historiens, des archéologues, et des chercheurs en sciences physiques et chimiques. La participation est gratuite pour les doctorants attachés aux écoles doctorales du FNRS dans les disciplines concernées. À la croisée de l’archéologie, de l’histoire et des sciences exactes, ce colloque-atelier donnera la parole à trois orateurs (un physicien, un chimiste et un historien) qui présenteront les recherches interdisciplinaires qu’ils mènent de concert dans ce domaine. Des ateliers de reproduction de parchemin, d’encres, et de matériel d’écriture seront organisés chaque jour.Plus d'informations sur l'évènement  

Keynote speaker | Murielle Ålund - Uppsala UniversityShort talks - Poster and pannel sessions - Networking eventSoumettez un abstract et gagnez l'un des prix !Plus d'infos et inscriptions sur le site Women and Girls in science

Au programme 16h00 | Accueil des participants dans le hall de la Faculté de médecine16h30 | Séance anniversaire et inaugurale17h30 | Drink et visite (en groupe) des laboratoiresParticipation externe sur invitation. Une question ?  Contacter Jean-François Colomer : jean-francois.colomer@unamur.be 

Two talks will be held:Renato OLARTE HERNANDEZ from UNamur will talk about: "Second Quantization in Quantum Chemistry".He will be followed by the talk of Prof. Marc de WERGIFOSSE (UCLouvain) entitled "Natural Response Orbitals and the RespA Procedure". 

Au programme 14h00 | Conférence principale sur l'utilisation de l'IA dans la recherche - Hugues BERSINI, professeur à l’Université libre de Bruxelles : "Can science be just data driven ?" 15h00 | Exposés de chercheurs de l'UNamur15h00 | Catherine Guirkinger : Use of AI in an economic history project15h15 | Nicolas Roy (PI : Alexandre Mayer) :  L'IA au service de l'innovation en photonique et optique :  révéler les secrets des parchemins par la classification des espèces animales15h25 | Nemanja Antonic (PI : Elio Tuci) : An in silico representation of C. elegans collective behaviour15h35 | Nicolas Franco : The benefits and dangers of “predicting the future” with covid-like machine learning models 15h45 | Michel Ajzen : Implications managériales et humaines de l’IA dans les organisations 15h55 | Robin Ghyselinck (PI : Bruno Dumas) : Deep Learning for endoscopy: towards next generation computer-aided diagnosis16h05 | Auguste Debroise (PI : Guilhem Cassan) : LLMs pour mesurer l'importance des stéréotypes au sein des représentations de genre dans les films hollywoodiens16h15 | Gabriel Dias De Carvalho : Pratiques d’apprentissage en physique à l’aide des IA génératives16h25 | Sébastien Dujardin (PI : Catherine Linard) : Where Geography meets AI: A case study on mapping online flood conversations16h35 | Jeremy Dodeigne : LLMs in SHS: revolutionary tools in a Wild West Territory? Reflections on costs, transparency and open science16h45 | Antoinette Rouvroy : Governing AI in Democracy17h00 | Conférence principale sur l'éthique et les lignes directrices à prendre en compte lors de l'utilisation de l'IA dans le cadre de projets de recherche et de la rédaction d’articles de recherche - Bettina BERENDT, professeure à la KU Leuven18h00 | Benoît Frenay et Michaël Lobet : Création d'un comité scientifique IA à l'UNamur18h10 | DrinkUne attestation de présence, valant pour 0,5 crédit de formation doctorale transversale, sera délivrée sur demande.  Contact : secretariat.adre@unamur.beCet évènement est gratuit mais l’inscription est obligatoire.   Je m'inscris

The conference is co-organized by the University of Namur, Belgium and Wuhan University of Technology, China and supported by Foshan Xianhu Laboratory and other organisms.More info on the GCMC2025 website...

Abstract Radiotherapy is a cornerstone of cancer treatment and is currently administered to approximately half of all cancer patients. However, the cytotoxic effects of ionizing radiation on normal tissues represent a major limitation, as they restrict the dose that can be safely delivered to patients and, consequently, reduce the likelihood of effective tumor control. In this context, delivering radiation at ultra-high dose rates (UHDR, > 40 Gy/s) is gaining increasing attention due to its potential to spare healthy tissues surrounding the tumor and to prevent radiation-induced side effects, as compared to conventional dose rates (CONV, on the order of Gy/min).The mechanism underlying this protective effect—termed the FLASH effect—remains elusive, driving intensive research to elucidate the biological processes triggered by this type of irradiation.In vitro models offer a valuable tool to support this research, allowing for the efficient screening of various beam parameters and biological responses in a time- and cost-effective manner. In this study, multicellular tumor spheroids and normal cells were exposed to proton irradiation at UHDR to evaluate its effectiveness in controlling tumor growth and its cytotoxic impact on healthy tissues, respectively.We report that UHDR and CONV irradiation induced a comparable growth delay in 3D tumor spheroids, suggesting similar efficacy in tumor control. In normal cells, both dose rates induced similar levels of senescence; however, UHDR irradiation led to lower apoptosis induction at clinically relevant doses and early time points post-irradiation.Taken together, these findings further highlight the potential of UHDR irradiation to modulate the response of normal tissues while maintaining comparable tumor control.JuryProf. Thomas BALLIGAND (UNamur), PrésidentProf. Stéphane LUCAS (UNamur), SecrétaireProf. Carine MICHIELS (UNamur)Dr Sébastien PENNINCKX (Hôpital Universitaire de Bruxelles)Prof. Cristian FERNANDEZ (Université de Bern)Dr Rudi LABARBE (IBA)

Abstract Due to their unique chemical, physical and photophysical properties, organoboron compounds and in particular triarylboranes play a central role in chemistry and in catalysis. Trivalent neutral boron Lewis acids, which are planar trigonal species, have been shown to exhibit enhanced Lewis acidity and electrophilicities when constrained in a pyramidal trigonal environment. Within the context of the emerging area of geometrically constrained main-group elements, the fundamental experimental and computational investigations of the impact of structural deformation on the physicochemical properties and reactivity of borane derivatives is of interest. This thesis will explore successively the development of geometrically constrained intramolecular FLP and of cationic boron Lewis superacid based on the aza-boratriptycene scaffold, then the synthesis of pyramidalyzed electron-deficient borenium cation with tethered pyridine and NHC ligands embedded in the triptycene scaffold and will finally focus on chiral borenium cations as new Lewis acids. A collaborative work dealing with the combination of the strong 9-sulfonium-10-boratriptycene with hindered Lewis bases is finally performed for developing latent FLP. This work deepens our understanding of the synthesis of constrained boron Lewis acids species, a key step to develop new pyramidal boron Lewis superacids, deblocking new kinds of reactivity in main-group chemistry. For instance, electrophilic Csp2–H borylation reactions of electron-poor aromatics were observed, new unusual binding mode at weakly coordinating anions were discovered and encouraging steps were initiated for reaching new chiral boron-based Lewis acids, opening the path toward new horizons in main-group chemistry.JuryProf. Benoît CHAMPAGNE (UNamur), PrésidentProf. Guillaume BERIONNI (UNamur), SecrétaireProf. Olivier CHUZEL (Aix-Marseille Université)Prof. Raphaël ROBIETTE (UCLouvain)Prof. Stéphane VINCENT (UNamur)