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BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260526T110000
DTEND;TZID=Europe/Paris:20260526T120000
DTSTAMP:20260430T160508
CREATED:20260424T075655Z
LAST-MODIFIED:20260424T075655Z
UID:10000126-1779793200-1779796800@sfp-alpes.fr
SUMMARY:Mark GLOVER (Department of Biochemistry\, University of Alberta\, Edmonton\, Canada)
DESCRIPTION:Mechanism of sRNA recognition and regulation by FinO RNA chaperones\nRésumé : \nThe FinO family of RNA chaperones regulate sRNA function throughout gram negative bacteria. Many of the best characterized family members bind to rho-independent transcription termination structures at the 3’ ends of sRNAs and mediate pairing of the sRNA with their mRNA targets. The crystal structure of the FinO domain of the Legionella pneumophila chaperone RocC bound to its sRNA target reveals a novel interaction that recognizes both the stem and the 3’ end of the terminator structure. The structure suggests a mechanism by which different FinO proteins can selectively bind RNAs with different 3’ tail lengths\, which is likely conserved throughout the FinO family. Biochemical and in vivo studies indicate that intrinsically disordered regions adjacent to the FinO domain are also essential for sRNA regulation\, by remodeling RNA structure to facilitate RNA-RNA association. \n__ \nHôte : Dr Nicolas Coquelle (IBS/Groupe Dynamique et Cinétique des processus moléculaires) \nRappel : L’accès au campus EPN nécessite un avis de rendez-vous. A cet effet merci d’adresser votre demande à ibs.seminaires@ibs.fr (au moins 48h à l’avance).
URL:https://sfp-alpes.fr/event/mark-glover-department-of-biochemistry-university-of-alberta-edmonton-canada/
LOCATION:IBS – Salle des séminaires\, IBS 71 avenue des Martyrs\, Grenoble\, 38042\, France
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260528T140000
DTEND;TZID=Europe/Paris:20260528T150000
DTSTAMP:20260430T160508
CREATED:20260430T121134Z
LAST-MODIFIED:20260430T122107Z
UID:10000139-1779976800-1779980400@sfp-alpes.fr
SUMMARY:Alexandre BUZDIN (LOMA\, Bordeaux)
DESCRIPTION:Optical and TeraHertz radiation methods of flux manipulation in superconductors\nRésumé : \nAlthough the average properties of vortex matter in superconductors can be tuned using magnetic fields\, temperature\, or electric currents\, the manipulation of individual Abrikosov vortices remains challenging and has only been demonstrated with advanced scanning local probe microscopies. Recently\, a far-field optical method was proposed\, leveraging local heating of the superconductor with a focused laser beam to enable fast and precise manipulation of individual vortices\, akin to optical tweezers. This development paves the way for creating laser-driven Josephson junctions controlled by optically driven Abrikosov vortices. \nAnother approach for manipulating single flux quanta involves the so-called inverse Faraday effect\, where circularly polarized radiation interacts with the superconducting condensate\, acting as an effective magnetic field that generates supercurrents and DC magnetic moments. By employing the time-dependent Ginzburg–Landau equation formalism\, we have analyzed the current-carrying states of a small superconducting ring illuminated by such radiation. Numerical simulations reveal the possibility of 100% on-demand switching between current-carrying states in the superconductor by controlling the helicity of the electromagnetic field polarization. \nFurthermore\, theoretical analysis suggests the feasibility of the electromagnetic drag effect in superconductors—the generation of DC supercurrents and second harmonic signals induced by microwave radiation incident on a superconducting surface. \nThese findings open pathways to the all-optical operation of superconducting devices\, including RF SQUID flux qubits. \n_ \nContact : florence.levy-bertrand@neel.cnrs.fr
URL:https://sfp-alpes.fr/event/alexandre-buzdin-loma-bordeaux/
LOCATION:CNRS – Salle Rémy Lemaire (K223)\, CNRS - Institut Néel 25 avenue des Martyrs\, Grenoble\, 38042\, France
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260528T140000
DTEND;TZID=Europe/Paris:20260528T150000
DTSTAMP:20260430T160508
CREATED:20260430T130321Z
LAST-MODIFIED:20260430T130828Z
UID:10000143-1779976800-1779980400@sfp-alpes.fr
SUMMARY:Charles McCRORY (Chemistry and Macromolecular Science and Engineering - University of Michigan\, USA)
DESCRIPTION:Breaking Scaling Relationships in Molecular Electrocatalysts for the CO2 Reduction Reaction\nProfesseur invité UGA du 15/05 au 15/06/2026 \nRésumé : \nFor molecular electrocatalysts\, beneficial decreases in effective overpotential are typically correlated with detrimental decrease in catalytic activity. This scaling relationship arises when both effective overpotential and kinetic reactivity scale with metal site nucleophilicity. Our research strategy is to break typical molecular scaling  relationships by designing molecular electrocatalysts with redox-active ligands where the catalytic reaction is initiated by redox activation of the ligand. These systems decouple metal site nucleophilicity from effective overpotential\, thus allowing us to break the correlation between catalyst reactivity and effective overpotential. \nIn this talk\, we will discuss how incorporating electronic substituents onto the redox-active ligand structure of Co(pyridyldiimine) complexes facilitates ligand reduction and leads to an inverse molecular scaling relationship for electrocatalytic CO2 reduction. We will explore the strategy of incorporating cationic charges into the complex as a means of breaking and inverting scaling relationships both through the incorporation of charged substituents into the ligand scaffold and through construction of homo- and heterobimetallic Co-Co and Co-Zn complexes. We will also discuss whether the activity enhancement from these cationic substituents is best described as\nthrough-space electrostatic stabilization of reactive intermediates\, or through-bond inductive effects related to the stabilization of the catalytic intermediates. Finally\, we will explore how these complexes operate for CO2 reduction and other electrocatalytic reductions when incorporated into larger coordination polymers and macromolecular scaffolds. \n_ \nContact : cyrille.costentin@univ-grenoble-alpes.fr
URL:https://sfp-alpes.fr/event/charles-mccrory-chemistry-and-macromolecular-science-and-engineering-university-of-michigan-usa/
LOCATION:DCM – Salle C209\, DCM - Bât Chimie Recherche 301 rue de la Chimie\, St Martin d'Hères\, 38400\, France
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260604T160000
DTEND;TZID=Europe/Paris:20260604T170000
DTSTAMP:20260430T160508
CREATED:20260213T142628Z
LAST-MODIFIED:20260213T143322Z
UID:10000071-1780588800-1780592400@sfp-alpes.fr
SUMMARY:Sophie GUERON
DESCRIPTION:Explorer les isolants topologiques avec la physique mésoscopique\n_ \nToutes les informations sont disponibles sur : https://indico.ijclab.in2p3.fr/event/12406/ \nContact : louis.fayard@IJCLAB.INP3.FR
URL:https://sfp-alpes.fr/event/sophie-gueron/
LOCATION:Laboratoire IJCLab – Auditorium Pierre Lehmann\, Rue Ampère\, Orsay cedex\, 91898\, France
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260623T110000
DTEND;TZID=Europe/Paris:20260623T120000
DTSTAMP:20260430T160508
CREATED:20260326T142350Z
LAST-MODIFIED:20260326T142357Z
UID:10000111-1782212400-1782216000@sfp-alpes.fr
SUMMARY:Lucas GOEHRING (Nottingham Trent University (UK))
DESCRIPTION:Structure formation in paints and coatings\nRésumé : \nPaints and coatings are typically a mix of small particles\, like pigments\, along with a polymer glue or binder. Similar products include inks\, varnishes\, cosmetics\, ceramics and even the lithium-ion battery electrodes that power modern electric vehicles. These materials are prepared as a liquid\, spread over a surface\, and dried.  As anyone who has painted a wall will know\, however\, this process can easily go wrong. Even a well-prepared paint can develop an undesirable skin and wrinkle\, crack\, or peel\, and these coatings can also visibly degrade over time. \nIn this talk I will go through the key stages of film formation\, or how a colloidal dispersion dries.  I will show how small angle scattering experiments (SANS/SAXS) helped to elucidate how the structure of the film changes during drying\, evolving from a dilute gas of particles\, into a transient gel where capillary pressures balance electrostatic repulsion\, to a final aggregated solid. I will then turn to look at how the insight gained has led to a better understanding of mechanical instabilities like fracture\, shear banding\, birefringence\, and peeling\, as well as revealing an unexpected route to colloidal crystallisation. \nFinally\, I will summarise our recent work using neutron scattering techniques to investigate blanching\, a degradation process that can cause a visible whitening in the traditional varnishes that are used as a protective outer coating on many historically and artistically important paintings. \nSpeaker’s website: https://www.ntu.ac.uk/staff-profiles/science-technology/lucas-goehring \n— \nOrsolya Czakkel (College 9 Secretary) \nExternal visitors may ask for a site access to tellier@ill.fr \nZoom link: https://ill.zoom.us/j/95581858117?pwd=hh9paEQj6BF8u9WYzfZkvZaGspe1i3.1  – Passcode: 078610 \n 
URL:https://sfp-alpes.fr/event/lucas-goehring-nottingham-trent-university-uk/
LOCATION:ILL – Salle de Séminaire (110-111)\, ILL 50 71 avenue des Martyrs\, Grenoble\, 38042\, France
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260630T103000
DTEND;TZID=Europe/Paris:20260630T113000
DTSTAMP:20260430T160508
CREATED:20260326T145827Z
LAST-MODIFIED:20260326T145855Z
UID:10000113-1782815400-1782819000@sfp-alpes.fr
SUMMARY:Carlotta PORZIO (CERN\, Switzerland)
DESCRIPTION:Experimental activities at the ISOLDE-CERN facility\nRésumé : \nThe ISOLDE factily at CERN is one of the world-leading laboratories for the production of radioactive ion beams (RIBs) with the ISOL (Isotope Separation On-Line) method. More than 1000 isotopes of over 70 chemical elements have been produced via the interaction of a 1.4 GeV proton beam with a variety of target materials. After ionization and mass separation\, the beams can be delivered at low energy or post-accelerated up to about 10 MeV/u using the HIE-ISOLDE linear accelerator. The facility supports a broad scientific program\, spanning nuclear structure studies\, nuclear astrophysics\, materials science\, life sciences\, and investigations of fundamental interactions. \nAmong the experimental setups available at HIE-ISOLDE\, the Miniball gamma-ray spectrometer is employed to investigate both collective and single-particle properties of exotic nuclei. Combined with the post-accelerated radioactive ion beams\, Miniball enables nuclear structure studies via Coulomb excitation and nucleon-transfer reactions. \nThis seminar will provide an introduction to the ISOLDE facility and the ISOL RIB production method\, and an overview of experimental setups and techniques\, with a focus on the Miniball spectrometer. \n— \nHanno Filter (College 3 Secretary \nExternal visitors may ask for a site access to tellier@ill.fr \n 
URL:https://sfp-alpes.fr/event/carlotta-porzio-cern-switzerland/
LOCATION:ILL – Salle de Séminaire (110-111)\, ILL 50 71 avenue des Martyrs\, Grenoble\, 38042\, France
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20261008T160000
DTEND;TZID=Europe/Paris:20261008T170000
DTSTAMP:20260430T160508
CREATED:20260409T110848Z
LAST-MODIFIED:20260409T110853Z
UID:10000124-1791475200-1791478800@sfp-alpes.fr
SUMMARY:Cecile ENGRAND
DESCRIPTION:Les micrométéorites : les messagères de notre origine\n_ \nToutes les informations sont disponibles sur : https://indico.ijclab.in2p3.fr/event/13491/ \nContact : louis.fayard@IJCLAB.INP3.FR \n  \n 
URL:https://sfp-alpes.fr/event/cecile-engrand/
LOCATION:Laboratoire IJCLab – Auditorium Pierre Lehmann\, Rue Ampère\, Orsay cedex\, 91898\, France
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20261015T160000
DTEND;TZID=Europe/Paris:20261015T170000
DTSTAMP:20260430T160508
CREATED:20260409T111456Z
LAST-MODIFIED:20260409T111459Z
UID:10000125-1792080000-1792083600@sfp-alpes.fr
SUMMARY:Christophe SALOMON
DESCRIPTION:Atomes froids et mesure précise du temps\n_ \nToutes les informations sont disponibles sur : https://indico.ijclab.in2p3.fr/event/13426/ \nContact : louis.fayard@IJCLAB.INP3.FR
URL:https://sfp-alpes.fr/event/christophe-salomon/
LOCATION:Laboratoire IJCLab – Auditorium Pierre Lehmann\, Rue Ampère\, Orsay cedex\, 91898\, France
CATEGORIES:Séminaire
END:VEVENT
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