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BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260408T093000
DTEND;TZID=Europe/Paris:20260408T113000
DTSTAMP:20260402T160835Z
CREATED:20260402T160829Z
LAST-MODIFIED:20260402T160835Z
UID:10000120-1775640600-1775647800@sfp-alpes.fr
SUMMARY:Soutenance d'HDR de Marie-Aude MEASSON (Institut Néel\, équipe MagSup)
DESCRIPTION:Matériaux Quantiques en Conditions Extrêmes : Modes Collectifs et Ordres Quantiques Exotiques\nRésumé : A VENIR… \nPrésentation en français \n_ \nContact : marie-aude.measson@neel.cnrs.fr
URL:https://sfp-alpes.fr/event/soutenance-dhdr-de-marie-aude-measson-institut-neel-equipe-magsup/
LOCATION:CNRS – Bâtiment A\, CNRS - Institut Néel 25 avenue des Martyrs\, Grenoble\, 38054\, France
CATEGORIES:Soutenance,Soutenance HDR
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260609T140000
DTEND;TZID=Europe/Paris:20260609T150000
DTSTAMP:20260529T145613Z
CREATED:20260529T143536Z
LAST-MODIFIED:20260529T145613Z
UID:10000173-1781013600-1781017200@sfp-alpes.fr
SUMMARY:Soutenance HDR de Tristan WAGNER (IRIG / IBS)
DESCRIPTION:Characterization of native enzymes to understand how anaerobic microbes impact biogeochemical cycles\nRésumé : \nMicrobes are actors of the biogeochemical cycles\, transforming gases\, minerals\, and biological matter through enzymatic reaction chains. Among them\, anaerobic archaea\, namely methanogens and methanotrophs\, play a key role in converting planetary carbon\, nitrogen\, and sulfur\, impacting the biosphere and providing green sustainable solutions for our modern society. The last fourteen years of my career were devoted to understanding the molecular basis of these microbial transformations\, such as methane production or degradation\, CO2 and carbon monoxide conversion to biofuels\, N2 fixation\, and sulfur cycling. Since these enzymes harbor O2-sensitive complicated metallocofactors\, most of my work relies on native protein purification from the microbes themselves under strict O2 exclusion. After a brief presentation of my career and PhD project\, the presented work summarizes my most renowned breakthrough regarding the elucidation of molecular tricks in carbon\, nitrogen\, and sulfur metabolisms in methane-generating microbes\, including their regulatory networks. Then\, the latest research led by my group is introduced with : (i) how methanogens munch on methylated substrates such as methanol and lignin-degradation products\, (ii) how an industrial bacterium turns waste gases into biofuels\, (iii) the study of a microbial consortia “that burn” methane and ethane without oxygen via a native approach. Finally\, I will present the features of my past group and my future laboratory. ​​ \nL’accès au campus EPN nécessite un avis de rendez-vous. Merci d’adresser votre demande à ibs.seminaires@ibs.fr au moins 48h à l’avance. \nN’oubliez pas de vous munir d’une pièce d’identité.​
URL:https://sfp-alpes.fr/event/tristan-wagner-irig-ibs/
LOCATION:IBS – Salle des séminaires\, IBS 71 avenue des Martyrs\, Grenoble\, 38042\, France
CATEGORIES:Soutenance,Soutenance HDR
ORGANIZER;CN="IRIG - CEA":MAILTO:irig.communication@cea.fr
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260618T140000
DTEND;TZID=Europe/Paris:20260618T160000
DTSTAMP:20260529T145529Z
CREATED:20260529T144049Z
LAST-MODIFIED:20260529T145529Z
UID:10000174-1781791200-1781798400@sfp-alpes.fr
SUMMARY:Soutenance HDR de Rebekka WILD (IRIG / IBS)
DESCRIPTION:Molecular insight into the wonderful complex world of protein glycosylation\nRésumé : \nThis research habilitation focuses on the characterization of a class of enzymes – glycosyltransferases – that are involved in the biosynthesis of glycoproteins. It emphasizes the use of cryo-electron microscopy (cryo-EM) to study these enzymes\, for which obtaining mechanistic insights remains a challenging task to this day. The presentation will provide an overview of the different types of glycosylation found in humans\, along with a detailed description of the biosynthetic pathways of N-linked glycans and glycosaminoglycans. Subsequently\, I describe my work over the past ten years\, which is divided into two parts : my postdoctoral studies on a central enzyme complex of the N-linked glycosylation machinery and the work of my research team at the Institut de Biologie Structurale focusing on heparan sulfate and chondroitin sulfate biosynthesis. It closes with an overview on ongoing and future projects.​ \nL’accès au campus EPN nécessite un avis de rendez-vous. Merci d’adresser votre demande à ibs.seminaires@ibs.fr au moins 48h à l’avance. \n\nN’oubliez pas de vous munir d’une pièce d’identité.​
URL:https://sfp-alpes.fr/event/rebekka-wild-irig-ibs/
LOCATION:IBS – Salle des séminaires\, IBS 71 avenue des Martyrs\, Grenoble\, 38042\, France
CATEGORIES:Soutenance,Soutenance HDR
ORGANIZER;CN="IBS":MAILTO:ibs.seminaires@ibs.fr
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260618T141500
DTEND;TZID=Europe/Paris:20260618T163000
DTSTAMP:20260529T150945Z
CREATED:20260529T150859Z
LAST-MODIFIED:20260529T150945Z
UID:10000177-1781792100-1781800200@sfp-alpes.fr
SUMMARY:Soutenance de HDR de Andrew GROSS (DCM (équipe BIOCEN))
DESCRIPTION:Nanostructured porous frameworks to control and drive bioelectrocatalysis for sensing and energy generation\n_ \n Contact : Nathalie.Camerino@univ-grenoble-alpes.fr \n 
URL:https://sfp-alpes.fr/event/soutenance-de-hdr-de-andrew-gross-dcm-equipe-biocen/
LOCATION:DCM – Bât Nanobio\, DCM 570 rue de la Chimie\, St Martin d'Hères\, 38400\, France
CATEGORIES:Soutenance,Soutenance HDR
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260619T100000
DTEND;TZID=Europe/Paris:20260619T110000
DTSTAMP:20260529T130829Z
CREATED:20260529T130829Z
LAST-MODIFIED:20260529T130829Z
UID:10000169-1781863200-1781866800@sfp-alpes.fr
SUMMARY:Soutenance HDR de Julien PERARD (Irig/LCBM)
DESCRIPTION:From iron to biohydrogen: how bacteria are inspiring the biotechnologies of tomorrow\nRésumé : \nMicroorganisms play a crucial role in biotechnologies\, enabling the transformation of matter into high-value gases and biomass. At a time when the climate emergency demands a rethinking of our energy models\, my work is part of a responsible research approach\, aiming to reconcile scientific excellence\, environmental sustainability\, and economic viability.​\nOver the past twelve years\, I have dedicated my career to understanding the molecular mechanisms of the Fur and SUF systems (Fe-S cluster biogenesis\, bacterial virulence) and to studying nickel insertion into CO dehydrogenase\, using integrated structural approaches (SAXS\, MALLS\, crystallography). Since 2021\, I have refocused my research on energy biotechnologies. After a brief overview of my scientific journey\, I will detail my projects on developing solutions for BioH₂ production and CO₂ valorization\, particularly through the « Bioraffinery » project (combining photofermentation and methanogenesis)\, inspired by my participation in the 2022 EIC Horizon Prize. I have optimized photobioreactors (PBRs)\, improving their light efficiency and achieving up to 5 mol H₂/mol of substrate from PLA waste.​\nToday\, I am working on optimizing microbial strains and culture conditions\, as well as integrating circular processes for the joint production of BioH₂/BioCH₄. In collaboration with Génoscope\, CEA Tech\, and industrial partners\, I have developed advanced biorafineries to convert by-products into biofuels.​\nMy work\, at the interface of biophysics\, enzymology\, and engineering\, is part of a decarbonized bioeconomy approach.​ \n_ \nContact : alain.farchi@cea.fr
URL:https://sfp-alpes.fr/event/soutenance-hdr-de-julien-perard-irig-lcbm/
LOCATION:DCM – Bât Nanobio\, DCM 570 rue de la Chimie\, St Martin d'Hères\, 38400\, France
CATEGORIES:Soutenance,Soutenance HDR
ORGANIZER;CN="IRIG - CEA":MAILTO:irig.communication@cea.fr
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260623T140000
DTEND;TZID=Europe/Paris:20260623T160000
DTSTAMP:20260604T144948Z
CREATED:20260604T144948Z
LAST-MODIFIED:20260604T144948Z
UID:10000190-1782223200-1782230400@sfp-alpes.fr
SUMMARY:Soutenance HDR de Damien CALISTE (CEA-Irig/MEM)
DESCRIPTION:Étude de mécanismes à l’échelle atomique pour les matériaux fonctionnels\, apports de la DFT comme un outils en évolution\nRésumé : \nThe purpose to use numerical tools is to treat problems where the analytical solutions are too complex or unknown. In the field of solid-state physics\, the advent of the Density Functional Theory (DFT) had a major impact on the studies of materials at the atomic scale. Its numerous implementations and ability to efficiently run on large computing infrastructures\, made it popular and it quickly became indispensable in both academic and industrial research\, enabling unprecedented insights into the electronic\, structural\, and chemical properties of complex systems. However\, the power of DFT is not solely derived from its theoretical foundations; it is equally dependent on the robustness\, efficiency\, and adaptability of the computational tools that implement it. ​ \nThis defense will deal with these two aspects: material science through DFT simulations\, and maintainance and development of large numerical infrastructures like a DFT code. ​ \nI will first address how atomistic-level simulations can be used to complement experimental characterisations\, through the example of the indirect role played by Se atoms in the efficiency improvement of CdTe solar panels. Revealing such mechanisms is important for material design\, driving material engineering by knowledge. ​ \nA second part will be dedicated to a broad overview on the physics description of a graphite electrode in a Li-ion battery. Starting from a fully charged anode\, and following the deintercalation process\, I will question what insights we can get from DFT calculations with the existing knowledge obtained from long-passed experiments as from more recent in-operando characterisation results. ​ \n​Studying the dilute regime in graphite intercalation will lead to open questions about the capability of numerical simulations to address cases where the strong interactions between the cations and the host material\, compete with the binding of the layers. To properly address such questions\, it is important to have available within DFT\, a level of theory capable of treating inhomogeneous systems made of places where covalent bonds are dominant while in other areas van der Waals interactions take the lead. These situations can be commonly found in several classes of materials\, from van der Waals heterostructures to hybrid perovskites when out-of-equilibrium processes take place\, with defect / impurity diffusion or phase / structural transitions. The recent developments of versatile meta-GGAs associated to dispersion corrections\, look promising and have demonstrated their ability to reproduce perfect van der Waals systems. Concurrently\, their usage are restricted to some codes\, hindered by the complexity in DFT implementations\, isolating the diffusion of new ideas. I believe that the advent of code generation through AI is a timely opportunity to help spreading state-of-the-art DFT developments. Such thoughts will be discussed in the last part of the defense.​ \n_ \nContact : alain.farchi@cea.fr
URL:https://sfp-alpes.fr/event/soutenance-hdr-de-damien-caliste-cea-irig-mem/
LOCATION:CEA\, entrée principale – Salle de soutenance (bâtiment A2)\, 17\, avenue des Martyrs\, Grenoble\, 38000\, France
CATEGORIES:Soutenance,Soutenance HDR
ORGANIZER;CN="IRIG - CEA":MAILTO:irig.communication@cea.fr
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