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Founded some 50 years ago, the Laboratoire d'Analyse par Réactions Nucléaires (LARN) in the Department of Physics at the University of Namur is home to a 2MV tandem particle gas pedal named ALTAÏS (Accélérateur Linéaire Tandetron pour l'Analyse et l'Implantation des Solides), in operation since 1999.

The IPCC warns of the growing impact of global warming on water, with more frequent droughts and floods threatening global supplies. By 2050, 42% of river basins will be severely affected, and flood damage could quadruple in the event of 4°C warming. Although they bear little responsibility, the most vulnerable populations suffer the worst consequences. In Wallonia, recent climatic disasters and water pollution illustrate the stakes. To raise public awareness, an event is being organized in Charleroi with debates and screenings.Program17:00 | Introductory session Head of UNESCO Belgium Mr Aurélien Dumont, Secretariat of UNESCO's Intergovernmental Hydrological Programme, World Water Situation17:40 | Screening of the film "H2O, water, life and us: the Emergency"18:30 | Break18:45 | Lectures and debate Prof. Dr. Marnik Vanclooster (U.K.). Marnik Vanclooster (UCLouvain), "Situation en Wallonnie" Prof. Alfred Bernard (UCLouvain), "Normes et toxicologie" Debate Moderated by Prof. Karim ZouaouiBouin (UCLouvain). Karim ZouaouiBoudjeltia (ULB), with the participation of Aurélien Dumont, Marnik Vanclooster, Alfred Bernard.20:30 | Cocktail dinnerGRATULAR : Registration required: f.amer@wbi.beThe members of the "exact and natural sciences" Sub-CommissionBernard Feltz (UCLouvain, Chairman), Bertrand Hespel (UNamur), Marie-Geneviève Pinsart (ULB, CIGB), René Rezsohazy (UCLouvain), Frédéric Rychter (Secrétaire général), Olivier Sartenaer (UNamur), Didier Serteyn (ULiège), Anne Staquet (UMons), Marnik Vanclooster (UCLouvain), Karim Zouaoui Boudjeltia (ULB)

Le Printemps des Sciences is the must-attend science and technology event in Wallonia and Brussels. It takes place every year in early spring and offers free activities accessible to all.

Maxime Lucas is an FNRS Research Fellow in the Department of Mathematics and a member of the naXys Institute. He works on complex systems within the "Network Dynamics" cluster headed by Professor Timoteo Carletti. He is co-author of two papers on complex systems, recently published in prestigious journals Nature Physics and Physical Reviews Letters.

The three Belgian scientific experiments selected to be carried out on board the International Space Station (ISS) during astronaut Raphaël Liégeois' mission in 2026 have just been unveiled by the Federal Science Policy Public Service (Belspo). One of them is carried by a team from UNamur for an experiment at the crossroads of biology and physics aimed at analyzing the resistance of the "blob", an atypical unicellular organism.

We are pleased to invite you, on Thursday June 19, 2025, to Julie Duchêne's lecture on the results of the "Loup, qui es-tu?" project.As part of this lecture, Julie Duchêne (PhD in History UNamur/FNRS FRESH) will present the results of her thesis devoted to the history of the wolf on Walloon and Luxembourg territories from the 18th to the 20th century, shedding new light on the history of the wolf in Wallonia. What were the images of the wolf conveyed by sources during this period? What policies were put in place by the various states to combat this species, until leading to its disappearance in the early 20th century? And, finally, who were the wolves that populated our lands at that time? Finally, Julie will share with the public the results of paleogenetic analyses carried out on a dozen naturalized wolves preserved in partner museums, institutions and venues throughout Wallonia, a project that was a first in Belgium, at the crossroads of history and biology. We hope to see many of you at this event. Welcome to you all! Sign up

Last June, the UNamur Board of Directors officially announced the creation of the Observatoire des Littératures Sauvages (OLSa). Founded in 2022 under the leadership of Denis Saint-Amand, FNRS qualified researcher in the Department of French and Romance Languages and Literatures, this research center studies how literature is constructed outside of books and literary institutions, through alternative objects or channels.

SummaryIn 2025, machine learning continues to revolutionize various scientific fields, with major implications in physics, particularly photonics. The integration of advanced machine learning algorithms has enabled significant advances in the design and control of photonic systems, improving their efficiency and performance. These advances are essential for the development of communication, imaging and quantum computing technologies. However, physics research presents many challenges that go beyond simple performance measurements: identifying patterns and building analytical models is often just as crucial.In this thesis, we apply computational intelligence tools, in particular heuristic optimization and neural networks, to develop data-driven approaches to solving various tasks in physics. Although data-centric, our approach remains rooted in physics, always seeking to understand the physical phenomena underlying the algorithms. The results of this thesis cover a wide range of applications, from the design of complex metasurfaces and diffraction gratings to the analysis and interpretation of spectral data. We have also successfully developed an optimizer capable of learning and adapting to the problems encountered, particularly in physics. This key tool in our arsenal outperforms state-of-the-art methods in our applications. In particular, it has enabled the design of a coronagraphic phase plate for exoplanet imaging, with a performance 25% better than the best previous solutions.We have also designed a compact, all-dielectric beam deflection device, operating efficiently for all polarizations, reaching a maximum efficiency of 90%. Starting from a purely data-driven design, we were able to extract and validate an analytical model based on the behavior of an echelle lattice, providing a physical understanding of its operation. In addition to simulation-based tasks, we also processed experimental data, developing an animal origin classifier for scrolls, capable of distinguishing three animal species with 90% accuracy. This tool offers a non-invasive method for conservators and historians wishing to analyze fragile historical materials.Jury members Prof. Michaël LOBET (UNamur), PresidentProf. Alexandre MAYER (UNamur), SecretaryDr. Charlotte BEAUTHIER (CENAREO)Prof. Benoît FRENAY (UNamur)Prof. Olivier DEPARIS (UNamur)Prof. Denis LANGEVIN (Université de Clermont Auvergne)Prof. Hai Son NGUYEN (Ecole Centrale de Lyon)

Entitled "A hidden treasure of the BUMP: the Bergeyck archive (13th-19th centuries)", this lecture by Romain Waroquier (Doctor of History - Researcher at centre PraME de l'UNamur) will lift the veil on the riches of the de Bergeyck fonds, a family archive that illustrates, in an unprecedented way, the history of the seigneury of Dhuy, which has been passed down in the same family, heir to the Counts of Namur, since the 13th century.Among these documents are several rare items hitherto unknown to historians, such as a polyptique foncier of which there is only one equivalent in the Mosan area. Exploiting these archives opens a window onto the rural and seigniorial realities of the Middle Ages in this northern corner of the province of Namur that was the seigneury of Dhuy, and whose history Romain Waroquier will retrace for us.Welcome one and all!" Practical information and registration

The first global conference of Chinese materials researchers took place from July 22 to 28, 2025, at the University of Namur. Organized by Professor Bao-Lian Su, director of the Inorganic Materials Chemistry Laboratory (CMI) of the Nanomaterials Chemistry Unit (UCNano) in the Chemistry Department at the University of Namur, Belgium, in collaboration with Professor Qing-Jie Zhang of Wuhan University of Technology (China) and Professor Max Gao-Qing Lu of the University of Wollongong (Australia), the event brought together nearly 500 participants. 

A project submitted by Professor Frédéric Silvestre's Laboratoire de Physiologie Évolutive et Adaptative (LEAP) at the University of Namur has been ranked among the top 6 research projects funded by the FNRS and the Fonds de recherche du Québec (FRQ) for scientific collaboration between Wallonia and Quebec. The aim? To understand the impact of human activities on St. Lawrence Estuary (SLE) belugas, using interdisciplinary approaches to help improve conservation strategies for this threatened species..

Critical thinking, the art of productive doubt, can be learned and cultivated. Faced with information overload and the spread of artificial intelligence, it is more important than ever for students to develop this skill throughout their studies. At UNamur, this educational necessity takes many forms.