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Abstract Since its emergence in 1996, the Asian H5 Goose/Guangdong (Gs/Gd) lineage has circulated widely in poultry in southern China, spilling over to wild birds by 2002. Wild bird infections facilitated global dissemination via migratory waterfowl and repeated spillback into poultry, challenging the view that HPAI primarily arises from LPAI mutation. Subclade 2.3.4.4b emerged in Asia in 2013, reached Europe in 2016, caused recurrent epizootics, diversified into multiple genotypes, became dominant in wild birds, and shows zoonotic potential.This thesis investigates critical knowledge gaps regarding H5Nx subclade 2.3.4.4b in poultry: (1) early within-flock spread after punctual introduction in chickens, particularly during the first European epizootics; (2) influence of pre-existing immunity on silent circulation; (3) limitations in diagnostic throughput during epizootic peaks; (4) potential of environmental surveillance, including air and dust sampling; and (5) impact on egg contamination and the reproductive tract, relevant for food safety and zoonotic risk.Four main objectives were addressed: (1) development of an experimental model simulating punctual introductions and spread, comparing 2017 and 2020 strains and assessing pre-existing immunity; (2) enhancement of diagnostic capacity via alternative sampling, semi-automated RNA extraction, and high-throughput processing; (3) evaluation of air and dust sampling for virus monitoring under experimental and field conditions; and (4) assessment of egg contamination risk. Alternative sampling and environmental monitoring were also applied to Newcastle disease virus as a comparative notifiable pathogen. Jury Prof. Tuci Elio - University of Namur, BelgiumProf. Anthony Cleve - University of Namur, BelgiumProf. Pierre-Yves Schobbens - University of Namur, BelgiumProf. Alvaro Gutierrez - Universidad Politecnica de Madrid, EspagneMr. Fabian Duchesne - Qualitics SPRLProf. Anders Lyhne Christensen - SDU, Denmark Evènement public et gratuit - Inscription obligatoire Je m'inscris

This event will provide students, researchers, and industry representatives with an opportunity to explore the evolution of electron microscopy, deepen their understanding of advanced analysis techniques, and participate in live demonstrations in a real research environment.The program includes expert lectures on electron microscopy and analysis methods (EDS, EBSD, detectors), live SEM demonstrations, and a guided tour of the laboratory.Participants will have the opportunity to interact with JEOL specialists and the electron microscopy platform during hands-on sessions and networking opportunities.The event offers 1 ECTS credit to doctoral researchers and a certificate of participation upon request. I'm signing up Télécharger le programme

Interdisciplinary collaboration with subject specialists is a key component in the didactics of "Languages for Specific Purposes" (LSP). For LSP teachers, this collaboration makes it possible to devise contextualized courses that integrate both linguistic objectives and disciplinary content. By basing their teaching on a thorough needs analysis, LSP teachers design tailor-made didactic content that precisely meets the communicative requirements of learners in their specialist field.However, the position of LSP teachers within the institution can sometimes make such collaborations less obvious; moreover, it is often LSP teachers who initiate and support exchanges. This workshop aims to deepen understanding of the aforementioned collaborative dynamics, with the aim of improving student learning outcomes by strengthening interdisciplinary connections and fostering an integrated didactic approach.

From its formal appearance in the 3rd year of general secondary education in FW-B, the chemistry course takes the form of a program detailing a series of contents to be taught. Within the framework of an internal didactic transposition specific to their activity, teachers are led to estimate their relative importance in the curriculum and to transform them. In the midst of a pandemic or following a prolonged absence, what content will teachers retain, adapt or delete?This research project proposes to study this prioritization of the content to be taught in the chemistry course by the teaching staff. More specifically, this paper focuses on the construction and analysis of a questionnaire investigating the organization of the main chapters (UAA) by chemistry teachers.

The program 2:00 pm | Keynote lecture on the use of AI in research - Hugues BERSINI, Professor at the Université libre de Bruxelles: "Can science be just data driven?" 3:00 pm | Presentations by UNamur researchers3:00 pm | Catherine Guirkinger: Use of AI in an economic history project3:15 pm | Nicolas Roy (PI: Alexandre Mayer): AI at the service of innovation in photonics and optics: revealing the secrets of scrolls through the classification of animal species15:25 | Nemanja Antonic (PI: Elio Tuci): An in silico representation of C. elegans collective behaviour<15h35 | Nicolas Franco : The benefits and dangers of "predicting the future" with covid-like machine learning models 15h45 | Michel Ajzen : Managerial and human implications of AI in organizations <15h55 | Robin Ghyselinck (PI : Bruno Dumas) : Deep Learning for endoscopy: towards next generation computer-aided diagnosis4:05 pm | Auguste Debroise (PI : Guilhem Cassan) : LLMs to measure the importance of stereotypes within gender representations in Hollywood films16h15 | Gabriel Dias De Carvalho : Learning practices in physics using generative AI16h25 | 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 | Keynote lecture on ethics and guidelines to consider when using AI in research projects and writing research articles - Bettina BERENDT, Professor at KU Leuven18h00 | Benoît Frenay and Michaël Lobet : Creation of an IA scientific committee at UNamur18:10 | DrinkA certificate of attendance, worth 0.5 cross-disciplinary doctoral training credits, will be issued on request. Contact: secretariat.adre@unamur.beThis event is free of charge, but registration is required. I want to register

Conceptual field theory and didactic situation theory Two complementary theories for thinking about and organizing mathematical learningIn the first part of this talk, I'll propose an introductory situation in literal arithmetic (Barallobres & Giroux, 2008) that will enable me to introduce and illustrate the main concepts and methodological tools of the theory of didactic situations developed by Guy Brousseau (Brousseau, 1997; Bessot, 2024). In the second part, I will give a brief presentation of Gérard Vergnaud's theory of conceptual fields (Vergnaud, 1990; Durand-Guerrier and Saby, 2023), then show how this theory helps to shed further light on the introductory situation.The contributions of the anthropological theory of didactics The Anthropological Theory of Didactics (TAD, Chevallard, 2001) aims to explain why and how a given knowledge lives in a certain institution, and/or is transformed as it passes from one institution to another. This perspective and some of its evolutions will be presented and illustrated in this talk.Students' activities and teachers' practices in the mathematics classroom: analysis methodology with Activity TheoryIn this talk, we will present the founding assumptions of the Activity Theory framework adapted to the Didactics of Mathematics (TADM, Vandebrouck, 2008), showing how this theory gives importance to fine-grained analyses of mathematical knowledge to appreciate classroom developments. We will then exemplify some of these aspects on the teaching of limits at university (Bridoux and Grenier-Boley, 2024).BibliographyBarallobres, G., & Giroux, J. (2008). Environmental deficiencies and regulations in validation situations. N. In Berdnaz, & C. Mary (Eds). L'enseignement des mathématiques face aux défis de l'école et des communautés. Actes du colloque EMF 2006 (CD-ROM). Éditions du CRP https://emf.unige.ch/application/files/1414/5390/4857/EMF2006_GT8_Barallobres.pdfBessot, A. (2003). An introduction to the theory of didactic situations. Cahiers du laboratoire Leibniz, 91. hal-00078794Bridoux, S., & Grenier-Boley, N. (2024). What teaching practices should be used to introduce the limits of functions in the first year of university? A case study. In A. González-Martín, G. Gueudet, I. Florensa & N. Lombard (Eds.), Proceedings of the Fifth Conference of the International Network for Didactic Research in University Mathematics (INDRUM 2024, 10-14 June 2024) (pp. 791-800). Escola Universitària de Sarrià. Univ. Autònoma de Barcelona and INDRUM.Brousseau, G. (1997). Théorie des situations didactiques. Lecture given at the award to Guy Brousseau of the title of Doctor Honoris Causa from the University of Montreal. http://www.cfem.asso.fr/actualites/archives/Brousseau.pdfChevallard, Y. (2001). Organizing study: 1. Structures and Functions. In J.-L. Dorier, M. Artaud, M. Artigue, R. Berthelot, & R. Floris Proceedings of the XIe École d'été de didactique des mathématiques. (pp. 3-32). Editions la Pensée Sauvage.Durand-Guerrier, V., & Nicolas Saby, N. (2023). Usages de la théorie des champs conceptuels en didactique des mathématiques. The example of transitivity. Caminhos da Educação Matemática em Revista, 13 (4),118-134. ⟨hal-04585866⟩Vandebrouck, F. (dir.) (2008). La classe de mathématiques: activités des élèves et pratiques des enseignants. OCTARES Éditions.Vergnaud, G. (1990). Conceptual field theory. Recherches en didactique des mathématiques, 10(2/3), 133-170. In practice Program18:00: Presentation by Viviane Durand-Guerrier 18:40: Presentation by Ghislaine Gueudet 19:20: Presentation by Nicolas Grenier-Boley and Stéphanie Bridoux20:00: Q&A around the three presentationsModalities Required registration via the PhD school website or direct link to the registration form.Or online participation link (via TEAMS).