Open morning
Take part in our open morning
Given the works in the rue de Bruxelles and the renovation of part of the University parking lots, we invite you to use public transport whenever possible (train or bus) to reach Namur. UNamur boasts an ideal location, in the heart of the city just a five-minute walk from the TEC and SNCB train stations.If you're coming by car, take a look at the parking map provided.
Look forward to seeing you on Saturday, June 29!
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CHITEL 2024 - Congress of Theoretical Chemists of Latin Expression
Initiated in 1969 by Pullmann and Del Re, the congress is an annual meeting to promote collaboration and friendship between Latin-speaking theoretical chemists. In its early years, European researchers were the main contributors. Subsequently, the Latin American community has made a major contribution, with the emergence of teams whose international reputation now extends far beyond our own community.We are delighted to be holding this meeting at the University of Namur, 55 years after the first CHITEL was organised in Paris, France. We are sure that this 2024 edition will once again be an opportunity to take advantage of the good humour and dynamism of Latin to encourage, develop and strengthen scientific exchanges.We look forward to welcoming you at the University of Namur,The CHITEL 2024 Local Organising Committee.
Website
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A historic cosmic discovery: UNamur immortalized in the stars
(Update 04/04: This article is "an April Fool") A remarkable event took place during Printemps des sciences, which ran from March 18 to 24, 2024. While a visit to the UNamur Astronomical Observatory was offered to the general public on the evening of March 23, a unique phenomenon occurred.
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Public thesis defense - Virgile NEYMAN
Characterization of trehalase from Acyrthosiphon pisum for the design of new insecticides
SummaryAphids are major pests in agriculture, causing direct damage to plants and acting as vectors for phytopathogenic viruses. Conventional insecticides are widely used to control them, but their toxicity and efficacy pose problems in terms of the environment, human health and the emergence of resistance to these compounds. New alternatives are therefore needed, such as biological control using predators or parasitoids. However, these methods are not always economically viable on a large scale. As part of this thesis, another approach is being explored which involves developing new insecticides targeting the biochemical functions of aphids.The project aims to discover new inhibitors of trehalase, an enzyme essential for insect energy metabolism. Inhibition of this enzyme could disrupt vital insect functions without affecting mammals. This research involved several stages: the purification and complete characterization of trehalase from Acyrthosiphon pisum (the model for this study), the in vivo, in vitro and in silico analysis of commercial inhibitors on this enzyme, before moving on to the search for new inhibitors. Two points of integrated insect management were explored, biological and chemical control.The biological side saw the study of a strain of Streptomyces naturally producing trehalase-inhibiting metabolites, notably validamycin A, a molecule recognized in the literature as one of the best inhibitors, but not applicable as an insecticide. Other molecules appear to have interesting features, but we have not been able to isolate and characterize them.The chemical side has enabled us to create a pharmacophore hypothesis based on experimental results on molecules obtained by virtual screening. Although these molecules are not usable as insecticides as they stand, this hypothesis provides a better understanding of trehalase inhibitors in general and can be used to refine future analyses. JuryProf. Jean-Yves MATROULE (UNamur), presidentDr Catherine MICHAUX (UNamur), promoter and secretaryProf. Frédéric FRANCIS (ULiège), co-promoterProf. André MATAGNE (ULiège)Dr Rudy CAPARROS (ULiège)Dr Morgan HANS (Biocidal)
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Biodiversity and the value of nature: geographer Nicolas Dendoncker co-authors a major international publication
The Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES) has just published a study in the prestigious journal Nature, listing and assessing the different values we place on nature. Nicolas Dendoncker, professor in the Department of Geography and member of the ILEE Institute at UNamur, is one of the co-authors.
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Public thesis defense - Doux BARAKA KUSINZA
Essay topic
Essays on women's (dis)advantages in access to resources.Composition of the Jury:Prof. Catherine Guirkinger - Promoter (UNamur)Prof. Lorenzo Trimarchi - President of the Jury (UNamur)Prof. Jean-Marie Baland (UNamur)Prof. Jordan Loper (University of Clermont-Ferrand)Prof. Julia Vaillant (World Bank)
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Public thesis defense - Sébastien MEURANT
Thesis subject
Use of BioID within mitochondria: examples with the study of human mitochondrial co-translational import process and with the identification of MPV17 function
Summary
This thesis was divided into two different parts dedicated to the study of a mitochondrial process and of a mitochondrial protein using a proximity labelling assay called BioID. The first project was dedicated to the study of a poorly characterized process, the mitochondrial co-translational import. In this process, translation is coupled to the translocation of the mitochondrial proteins, alleviating the energy cost typically associated with the post-translational import relying on chaperone systems. However, the mechanisms are still unclear with only few actors identified but none that have been described in mammals yet. We thus profiled endogenously the TOM20 proxisome using BioID. Despite the enrichment of RNA binding proteins in the TOM20 proxisome, we could not demonstrate a role for a selected candidate, LARP4, in the mitochondrial co-translational import process. Nonetheless, additional uses of this BioID cell line were highlighted such as the monitoring of protein entry inside mitochondria and a potential application in the prediction of mitochondrial protein half-life.The second project was dedicated to the study of MPV17, a protein of the inner mitochondrial membrane whose gene is associated with mitochondrial DNA depletion syndrome. However, the exact molecular function of the protein is still unclear. The approach used in this project was to identify the interacting partners of MPV17, using BioID, to get additional clues about the protein function. In this project we demonstrated an interaction of MPV17 with the MICOS complex but the KO of MPV17 didn't impact mitochondria ultrastructure. However, the depletion of MPV17 protein led to increased mitochondria-derived vesicle formation. Therefore, we investigated a potential degradation of the mtDNA as the cause of the mtDNA depletion observed in MPV17 KO cells but, despite a higher mitophagy level in KO cells, the blockade of the lysosomal activity didn't prevent the depletion. Additional in silico analyses suggested a channel activity of MPV17 further supported by its direct interaction with the Cyclophilin D, a protein of the mitochondrial permeability transition pore. Interestingly, MPV17 KO cells also display higher level of mitochondrial calcium which would be related to the degradation of the mtDNA since the blockade of mitochondrial calcium entry prevents the depletion. We thus propose a role of MPV17 as a potential new member of the mitochondrial permeability transition pore whereas in the absence of the protein, the build-up of calcium inside the mitochondria would lead to the observed mtDNA degradation.
Jury
Prof. Benoît MUYLKENS (UNamur), ChairmanProf. Patsy RENARD (UNamur), Promoter and SecretaryProf. Thierry ARNOULD (UNamur), Co-PromoterProf. Dr. David PLA-MARTIN (Heinrich Heine University Düsseldorf, Germany)Dr. Timothy WAI (Institut Pasteur Paris, France)Prof. David PLA-MARTIN (Heinrich Heine University Düsseldorf, Germany)Dr. Timothy WAI (Institut Pasteur de Paris, France)Prof. Guy LENAERS (Université d'Angers, France)Prof. Sven EYCKERMAN (Universiteit Gent)
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From Master's to entrepreneurship: the inspiring path of a doctorate in management engineering
At the University of Namur, master's students in management engineering have the opportunity to follow an immersion course, taking part in three in-company internships. This is the path followed by Lhorie Pirnay. During her internships, she worked on improving "Hybrid Strategy Maps", a tool designed to help companies optimize their decisions. Backed by a network of influential sponsors, the former student, now a doctoral student, has just obtained the invaluable support of Win4SpinOff funding to develop her project. A first step towards the creation of a spin-off. Read on.
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Iluna Timmerman, management engineering student and familiar face on Flemish television
She's 18, studying for a BAC 1 in the Faculty of Economics, Social Sciences and Management, and is at the heart of a reality TV show following her family's life in Flanders. The show is called Château Planckaert, named after her grandfather Eddy Planckaert, a famous racing cyclist. Meet Iluna Timmerman, a serious, humble and reserved student.
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The Biology Department goes green: zero waste and responsible activities - CANDLE 2023
In 2023, UNamur opened a fourth CaNDLE call funded through the joint support of the Fonds Jérôme pour le développement durable and the Assemblée des Cercles of UNamur students. Discover one of the 7 selected projects.
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Sustainable water management for new chemistry laboratories - CANDLE 2023
In 2023, UNamur opened a fourth CaNDLE call funded through the joint support of the Fonds Jérôme pour le développement durable and the Assemblée des Cercles of UNamur students. Discover one of the 7 selected projects.
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The deep time march - CANDLE 2023
In 2023, UNamur opened a fourth CaNDLE call funded through the joint support of the Fonds Jérôme pour le développement durable and the Assemblée des Cercles of UNamur students. Discover one of the 7 selected projects.
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