{"count":238,"next":"https://memento.epfl.ch/api/v1/events/?format=json&limit=10&offset=60&ordering=slug","previous":"https://memento.epfl.ch/api/v1/events/?format=json&limit=10&offset=40&ordering=slug","results":[{"id":70632,"title":"Conduire le changement","slug":"conduire-le-changement-4","event_url":"https://memento.epfl.ch/event/conduire-le-changement-4","visual_url":"https://memento.epfl.ch/image/32057/200x112.jpg","visual_large_url":"https://memento.epfl.ch/image/32057/720x405.jpg","visual_maxsize_url":"https://memento.epfl.ch/image/32057/max-size.jpg","lang":"en","start_date":"2026-04-22","end_date":"2026-05-11","start_time":"09:00:00","end_time":"17:00:00","description":"<p>Dans notre monde en constante évolution, le changement constitue l’une des seules constantes, qu’il s’agisse du changement au niveau de l’individu, de l’équipe ou de l’organisation dans son ensemble. Cet atelier vous fournit des outils et des techniques pour naviguer et diriger efficacement vos partenaires à travers le processus de changement, tout en soutenant la transformation organisationnelle.<br>\r\n<br>\r\nA la fin de cet atelier, vous serez en mesure de :\r\n</p><ul>\r\n\t<li>Construire une vision du changement et utiliser efficacement la narration</li>\r\n\t<li>Identifier et traiter les ‘tueurs du changement’</li>\r\n\t<li>Évaluer et prendre en compte les parties prenantes dans vos initiatives de changement transversal</li>\r\n\t<li>Comprendre la manière de surmonter la résistance au changement </li>\r\n\t<li>Établir la confiance et la crédibilité</li>\r\n\t<li>Écouter efficacement</li>\r\n\t<li>Améliorer vos compétences en matière de communication autour du changement transversal</li>\r\n</ul>\r\nDurée de la formation: 2 heures virtuelle + 2 jours présentiels<br>\r\nPublic cible: Managers","image_description":"","creation_date":"2025-12-08T11:49:51","last_modification_date":"2025-12-08T11:52:35","link_label":"Inscription","link_url":"https://epfl.eu.crossknowledge.com/site/m/public_training/807","canceled":"False","cancel_reason":"","place_and_room":"","url_place_and_room":"","url_online_room":"","spoken_languages":["https://memento.epfl.ch/api/v1/spoken_languages/1/?format=json"],"speaker":"Marie Nordling","organizer":"KeepLearning","contact":"keeplearning@epfl.ch","is_internal":"True","theme":"","vulgarization":{"id":1,"fr_label":"Tout public","en_label":"General public"},"registration":{"id":1,"fr_label":"Sur inscription","en_label":"Registration required"},"keywords":"","file":null,"icalendar_url":"https://memento.epfl.ch/event/export/118937/","category":{"id":15,"code":"FORM","fr_label":"Formations internes","en_label":"Internal trainings","activated":true},"academic_calendar_category":null,"domains":[],"mementos":["https://memento.epfl.ch/api/v1/mementos/145/?format=json","https://memento.epfl.ch/api/v1/mementos/431/?format=json","https://memento.epfl.ch/api/v1/mementos/6/?format=json"]},{"id":70633,"title":"Conduire le changement","slug":"conduire-le-changement-5","event_url":"https://memento.epfl.ch/event/conduire-le-changement-5","visual_url":"https://memento.epfl.ch/image/32058/200x112.jpg","visual_large_url":"https://memento.epfl.ch/image/32058/720x405.jpg","visual_maxsize_url":"https://memento.epfl.ch/image/32058/max-size.jpg","lang":"en","start_date":"2026-11-18","end_date":"2026-11-30","start_time":"09:00:00","end_time":"17:00:00","description":"<p>Dans notre monde en constante évolution, le changement constitue l’une des seules constantes, qu’il s’agisse du changement au niveau de l’individu, de l’équipe ou de l’organisation dans son ensemble. 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He'll use this experience to make a state of play of how the different advancements in Generative AI and more recently agentic AI are disrupting, for the best and the worst, the way open-source communities are working day after day.<br>\r\n ","image_description":"","creation_date":"2026-03-24T17:22:18","last_modification_date":"2026-03-24T17:22:18","link_label":"","link_url":"","canceled":"False","cancel_reason":"","place_and_room":"SV 1717","url_place_and_room":"https://plan.epfl.ch/?room==SV%201717","url_online_room":"","spoken_languages":["https://memento.epfl.ch/api/v1/spoken_languages/2/?format=json"],"speaker":"<a href=\"https://www.linkedin.com/in/guillaume-lemaitre-b9404939/\">Guillaume Lemaître</a>","organizer":"","contact":"Eva Schier","is_internal":"False","theme":"","vulgarization":{"id":2,"fr_label":"Public averti","en_label":"Informed public"},"registration":{"id":3,"fr_label":"Entrée libre","en_label":"Free"},"keywords":"open source, coding, innovaiton","file":null,"icalendar_url":"https://memento.epfl.ch/event/export/120176/","category":{"id":1,"code":"CONF","fr_label":"Conférences - Séminaires","en_label":"Conferences - Seminars","activated":true},"academic_calendar_category":null,"domains":[],"mementos":["https://memento.epfl.ch/api/v1/mementos/416/?format=json","https://memento.epfl.ch/api/v1/mementos/6/?format=json","https://memento.epfl.ch/api/v1/mementos/8/?format=json","https://memento.epfl.ch/api/v1/mementos/9/?format=json","https://memento.epfl.ch/api/v1/mementos/111/?format=json","https://memento.epfl.ch/api/v1/mementos/27/?format=json"]},{"id":71529,"title":"Contributions to the Modeling of Hydraulic Stimulation Using Semi-Analytical and Coupled Numerical Approaches","slug":"contributions-to-the-modeling-of-hydraulic-stimu-2","event_url":"https://memento.epfl.ch/event/contributions-to-the-modeling-of-hydraulic-stimu-2","visual_url":"https://memento.epfl.ch/image/32867/200x112.jpg","visual_large_url":"https://memento.epfl.ch/image/32867/720x405.jpg","visual_maxsize_url":"https://memento.epfl.ch/image/32867/max-size.jpg","lang":"en","start_date":"2026-04-15","end_date":"2026-04-15","start_time":"17:30:00","end_time":null,"description":"<p>Thesis Director: Prof. B. T. A. Lecampion,<br>\r\nMechanics doctoral program<br>\r\nThesis Nr. 11652<br>\r\n<br>\r\nTo take part in the public defense, please contact directly the speaker</p>","image_description":"","creation_date":"2026-04-02T09:47:04","last_modification_date":"2026-04-02T09:47:07","link_label":"","link_url":"","canceled":"False","cancel_reason":"","place_and_room":"ELA 1","url_place_and_room":"https://plan.epfl.ch/?room==ELA%201","url_online_room":"https://epfl.zoom.us/j/64560919684?pwd=qnpUiRjHSLugxUaXBptYPY20lmJogb.1","spoken_languages":[],"speaker":"<a href=\"mailto:regina.fakhretdinova@epfl.ch\"><strong>Regina FAKHRETDINOVA</strong></a>  ","organizer":"","contact":"<a href=\"mailto:regina.fakhretdinova@epfl.ch\"><strong>Regina FAKHRETDINOVA</strong></a>","is_internal":"False","theme":"","vulgarization":{"id":1,"fr_label":"Tout public","en_label":"General public"},"registration":{"id":3,"fr_label":"Entrée libre","en_label":"Free"},"keywords":"EDME","file":null,"icalendar_url":"https://memento.epfl.ch/event/export/120282/","category":{"id":12,"code":"SOUTE","fr_label":"Soutenances de thèses","en_label":"Thesis defenses","activated":true},"academic_calendar_category":null,"domains":[],"mementos":["https://memento.epfl.ch/api/v1/mementos/4/?format=json"]},{"id":70194,"title":"COST","slug":"cost","event_url":"https://memento.epfl.ch/event/cost","visual_url":"https://memento.epfl.ch/image/31649/200x112.jpg","visual_large_url":"https://memento.epfl.ch/image/31649/720x405.jpg","visual_maxsize_url":"https://memento.epfl.ch/image/31649/max-size.jpg","lang":"en","start_date":"2026-10-30","end_date":"2026-10-30","start_time":null,"end_time":null,"description":"<strong>Call currently closed<br>\r\n<a href=\"https://www.google.com/url?sa=t&amp;rct=j&amp;q=&amp;esrc=s&amp;source=web&amp;cd=&amp;cad=rja&amp;uact=8&amp;ved=2ahUKEwjq14HX8MjuAhXSiqQKHe8pDHQQFjAAegQIBhAC&amp;url=https%3A%2F%2Fwww.cost.eu%2F&amp;usg=AOvVaw1onEGi7vjLjH7u6Q2FPmNB\">COST</a> (European Cooperation in Science and Technology)</strong> is a funding programme that encourages networking of scientific and technological research activities throughout Europe and beyond. The aim is to facilitate breakthrough scientific developments leading to new concepts and products. COST does not fund research but supports networking (COST Actions) via different tools such as meetings, short-term scientific exchanges, training schools and dissemination activities. COST Actions have a duration of 4 years. The deadline to submit a COST Action is usually in October. COST Actions do not cover research funding. Integration into existing COST actions is possible.<br>\r\n<br>\r\nSwitzerland is one of the founding countries of COST and a full member of the COST Association. Thanks to this status, researchers in Switzerland are entitled to participate in COST Actions or to coordinate them and submit applications for new Actions. Thus, scientists based in Switzerland are fully eligible for all COST activities and for reimbursement of their related expenses.<br>\r\nSNSF provides support for the proposal preparation for COST Actions.<br>\r\n<br>\r\nFind information about open calls and guidelines on <a href=\"https://www.cost.eu/\"><strong>COST Europe</strong></a><br>\r\nContact <a href=\"https://www.snf.ch/en/EpxgsoxjZBQv6id1/funding/programmes/cost\"><strong>SNSF COST webpage</strong></a> for support services.<br>\r\nSNSF Contact: Ladina Knapp,<strong> </strong><a href=\"mailto:cost@snf.ch\">cost@snf.ch</a><strong>  </strong><br>\r\nContact <a href=\"mailto:research@epfl.ch\">research@epfl.ch</a> for questions<br>\r\n<br>\r\n ","image_description":"","creation_date":"2025-10-23T14:32:45","last_modification_date":"2025-10-23T14:51:56","link_label":"","link_url":"","canceled":"False","cancel_reason":"","place_and_room":"","url_place_and_room":"","url_online_room":"","spoken_languages":[],"speaker":"","organizer":"","contact":"research@epfl.ch","is_internal":"False","theme":"","vulgarization":{"id":1,"fr_label":"Tout public","en_label":"General public"},"registration":{"id":3,"fr_label":"Entrée libre","en_label":"Free"},"keywords":"","file":null,"icalendar_url":"https://memento.epfl.ch/event/export/118257/","category":{"id":16,"code":"PROP","fr_label":"Appel à proposition","en_label":"Call for proposal","activated":true},"academic_calendar_category":null,"domains":[],"mementos":["https://memento.epfl.ch/api/v1/mementos/140/?format=json"]},{"id":70233,"title":"Cryo electron microscopy of vitreous sections revisited for high throughput tomographic imaging of tissue and cells","slug":"cryo-electron-microscopy-of-vitreous-sections-revi","event_url":"https://memento.epfl.ch/event/cryo-electron-microscopy-of-vitreous-sections-revi","visual_url":"https://memento.epfl.ch/image/31688/200x112.jpg","visual_large_url":"https://memento.epfl.ch/image/31688/720x405.jpg","visual_maxsize_url":"https://memento.epfl.ch/image/31688/max-size.jpg","lang":"en","start_date":"2026-05-05","end_date":"2026-05-05","start_time":"16:00:00","end_time":"17:00:00","description":"<br>\r\n<br>\r\nCellular cryo electron tomography is experiencing spectacular developments, revealing with increasing resolution and complexity the structures and interactions of macromolecules at work in living matter. To obtain thin samples from biological tissue and cells in their flash-frozen native state, cryo-FIB milling is nowadays the most popular method, with impressive successes. The alternative, cryo-ultramicrotomy - also known as CEMOVIS - has been overshadowed because of (i) technical difficulties associated to cryo-section generation and collection - in particular the lack of control over adhesion; and (ii) crevasses and compression artefacts.<br>\r\nI will present recent developments with optimization of the experimental workflow, focusing on section adhesion and their support grids. These result in high throughput data acquisition, with typically several tens to hundreds of cryo-tomograms per sample. Revisiting cutting artefacts shows that crevasses alter but 10 % of the sample volume. Compression is heterogeneous, with scale and material-dependent effects. This is altogether a drawback – with no simple computational correction – and an advantage for projects dedicated to non-(or little)-affected objects such as nucleosomes and chromatin.<br>\r\nAltogether, it is time to revive CEMOVIS as a practical alternative to cryo-FIB milling, offering specific advantages: (i) imaging of large areas of any type of sample, from cells to tissues, organs or even entire organisms – and more generally all kinds of hydrated molecular systems ; (ii) the possibility of serial section approaches ; (iii) no beam damage ; and (iv) a specimen thickness that can be tuned down to 30-50 nm, which may be an advantage for high resolution imaging of small molecular complexes.<br>\r\n<br>\r\n<br>\r\n<br>\r\n<br>\r\n<strong>Biography</strong><br>\r\n<br>\r\nAmélie Leforestier is a CNRS research director at the Solid-State Physics Laboratory (LPS, Paris-Saclay, France). After a PhD in Life Sciences on liquid crystalline self-assembly of DNA, she learned cryo electron microscopy during her post-doctoral studies in the group of Jacques Dubochet in Lausanne. Back in France, she set up a cryo-EM facility for soft matter physics at LPS. She is part of an <a href=\"https://equipes.lps.u-psud.fr/sobio/\">interdisciplinary team</a> dedicated to self-assembly processes at work in living systems at the molecular level. Her work, combining concepts from soft matter physics (poly-electrolytes, liquid crystals, frustration) and structural biology, focuses on the geometry and interactions in condensed states of DNA and chromosomes <em>in vitro</em> and <em>in situ</em>.","image_description":"","creation_date":"2025-10-29T08:00:54","last_modification_date":"2026-03-04T11:07:41","link_label":"","link_url":"","canceled":"False","cancel_reason":"","place_and_room":"","url_place_and_room":"","url_online_room":"https://epfl.zoom.us/j/65708791562","spoken_languages":["https://memento.epfl.ch/api/v1/spoken_languages/2/?format=json"],"speaker":"Amélie Leforestier | CNRS, France","organizer":"CIME","contact":"cime@epfl.ch","is_internal":"True","theme":"","vulgarization":{"id":1,"fr_label":"Tout public","en_label":"General public"},"registration":{"id":3,"fr_label":"Entrée libre","en_label":"Free"},"keywords":"","file":null,"icalendar_url":"https://memento.epfl.ch/event/export/118314/","category":{"id":1,"code":"CONF","fr_label":"Conférences - Séminaires","en_label":"Conferences - Seminars","activated":true},"academic_calendar_category":null,"domains":[],"mementos":["https://memento.epfl.ch/api/v1/mementos/1/?format=json","https://memento.epfl.ch/api/v1/mementos/5/?format=json","https://memento.epfl.ch/api/v1/mementos/8/?format=json","https://memento.epfl.ch/api/v1/mementos/9/?format=json","https://memento.epfl.ch/api/v1/mementos/110/?format=json","https://memento.epfl.ch/api/v1/mementos/339/?format=json","https://memento.epfl.ch/api/v1/mementos/284/?format=json","https://memento.epfl.ch/api/v1/mementos/6/?format=json"]},{"id":70947,"title":"Des Cèdres à Dorigny, bâtir l'école d'architecture / ACM ARCHIZOOM","slug":"des-cedres-a-dorigny-batir-l-ecole-d-architectur-2","event_url":"https://memento.epfl.ch/event/des-cedres-a-dorigny-batir-l-ecole-d-architectur-2","visual_url":"https://memento.epfl.ch/image/32335/200x112.jpg","visual_large_url":"https://memento.epfl.ch/image/32335/720x405.jpg","visual_maxsize_url":"https://memento.epfl.ch/image/32335/max-size.jpg","lang":"en","start_date":"2026-03-04","end_date":"2026-09-29","start_time":null,"end_time":null,"description":"<strong>DES CÈDRES À DORIGNY, <br>\r\nBÂTIR L’ÉCOLE D’ARCHITECTURE<br>\r\n04.03-29.09.2026<br>\r\n<br>\r\nOpening! Tuesday 3 March 6.30pm</strong><br>\r\n<br>\r\nFocusing on architectural projects, both built and unrealised, kept in the archives of modern construction, the exhibition <em>Des Cèdres à Dorigny</em> tells the story of the birth and evolution of the Lausanne School of Architecture. From its beginnings within the EPUL to its integration into the EPFL campus, this historical journey puts into perspective the conditions of architectural education, its relationship with engineering, and the role of archives in building an institutional memory that sheds light on both the discipline of architecture and its teaching.<br>\r\n<br>\r\n<em>An exhibition produced in collaboration with the <a href=\"https://www.epfl.ch/schools/enac/acm/en/acm-en/\">Archives de la construction moderne</a> at EPFL</em>","image_description":"","creation_date":"2026-01-26T08:56:11","last_modification_date":"2026-02-18T11:08:55","link_label":"Dès Cèdes à Dorigny, bâtir l'école d'architecture","link_url":"https://www.epfl.ch/campus/art-culture/museum-exhibitions/archizoom/fr/des-cedres-a-dorigny-batir-lecole-darchitecture/","canceled":"False","cancel_reason":"","place_and_room":"Archizoom","url_place_and_room":"https://plan.epfl.ch/?room==SG%201212","url_online_room":"","spoken_languages":["https://memento.epfl.ch/api/v1/spoken_languages/1/?format=json","https://memento.epfl.ch/api/v1/spoken_languages/2/?format=json"],"speaker":"ACM    ","organizer":"ARCHIZOOM ACM","contact":"Solène Hoffmann","is_internal":"False","theme":"","vulgarization":{"id":1,"fr_label":"Tout public","en_label":"General public"},"registration":{"id":3,"fr_label":"Entrée libre","en_label":"Free"},"keywords":"Architecture, enseignement, campus EPFL, archives","file":null,"icalendar_url":"https://memento.epfl.ch/event/export/119435/","category":{"id":5,"code":"EXPO","fr_label":"Expositions","en_label":"Exhibitions","activated":true},"academic_calendar_category":null,"domains":[],"mementos":["https://memento.epfl.ch/api/v1/mementos/32/?format=json","https://memento.epfl.ch/api/v1/mementos/1/?format=json","https://memento.epfl.ch/api/v1/mementos/4/?format=json","https://memento.epfl.ch/api/v1/mementos/45/?format=json","https://memento.epfl.ch/api/v1/mementos/145/?format=json","https://memento.epfl.ch/api/v1/mementos/22/?format=json","https://memento.epfl.ch/api/v1/mementos/421/?format=json","https://memento.epfl.ch/api/v1/mementos/6/?format=json"]},{"id":71169,"title":"Des Cèdres à Dorigny, bâtir l'école d'architecture / ACM ARCHIZOOM","slug":"des-cedres-a-dorigny-batir-l-ecole-d-architectur-8","event_url":"https://memento.epfl.ch/event/des-cedres-a-dorigny-batir-l-ecole-d-architectur-8","visual_url":"https://memento.epfl.ch/image/32537/200x112.jpg","visual_large_url":"https://memento.epfl.ch/image/32537/720x405.jpg","visual_maxsize_url":"https://memento.epfl.ch/image/32537/max-size.jpg","lang":"en","start_date":"2026-09-22","end_date":"2026-09-22","start_time":"17:30:00","end_time":null,"description":"<strong>DES CÈDRES À DORIGNY, <br>\r\nBÂTIR L’ÉCOLE D’ARCHITECTURE<br>\r\n04.03-29.09.2026<br>\r\n<br>\r\nTuesday 22 September 5.30pm, with an ACM archivist</strong><br>\r\n<br>\r\nFocusing on architectural projects, both built and unrealised, kept in the archives of modern construction, the exhibition <em>Des Cèdres à Dorigny</em> tells the story of the birth and evolution of the Lausanne School of Architecture. From its beginnings within the EPUL to its integration into the EPFL campus, this historical journey puts into perspective the conditions of architectural education, its relationship with engineering, and the role of archives in building an institutional memory that sheds light on both the discipline of architecture and its teaching.<br>\r\n<br>\r\nGuided tours are available upon <a href=\"https://forms.gle/22MoeLq9n3JDQTb56\">registration</a><br>\r\nGuided tours can be organized upon request for groups and schools<br>\r\n<br>\r\nAn exhibition produced in collaboration with the <a href=\"https://www.epfl.ch/schools/enac/acm/en/acm-en/\">Archives de la construction moderne</a> at EPFL","image_description":"","creation_date":"2026-02-18T11:07:37","last_modification_date":"2026-02-18T11:07:37","link_label":"","link_url":"","canceled":"False","cancel_reason":"","place_and_room":"Archizoom","url_place_and_room":"https://plan.epfl.ch/?room==SG%201212","url_online_room":"","spoken_languages":["https://memento.epfl.ch/api/v1/spoken_languages/2/?format=json"],"speaker":"Kethsana Muong","organizer":"Archizoom ACM","contact":"Solène Hoffmann","is_internal":"False","theme":"","vulgarization":{"id":1,"fr_label":"Tout public","en_label":"General public"},"registration":{"id":3,"fr_label":"Entrée libre","en_label":"Free"},"keywords":"Architecture, Archives, Archives de la construction moderne, EPFL, Histoire","file":null,"icalendar_url":"https://memento.epfl.ch/event/export/119776/","category":{"id":9,"code":"MANIF","fr_label":"Événements festifs et culturels","en_label":"Cultural events","activated":true},"academic_calendar_category":null,"domains":[],"mementos":["https://memento.epfl.ch/api/v1/mementos/32/?format=json","https://memento.epfl.ch/api/v1/mementos/1/?format=json","https://memento.epfl.ch/api/v1/mementos/4/?format=json","https://memento.epfl.ch/api/v1/mementos/45/?format=json","https://memento.epfl.ch/api/v1/mementos/145/?format=json","https://memento.epfl.ch/api/v1/mementos/22/?format=json","https://memento.epfl.ch/api/v1/mementos/6/?format=json","https://memento.epfl.ch/api/v1/mementos/421/?format=json"]},{"id":70819,"title":"Drawing Research Platform London 2026 - ENAC Summer Workshop","slug":"drawing-research-platform-london-2026-enac-summe-2","event_url":"https://memento.epfl.ch/event/drawing-research-platform-london-2026-enac-summe-2","visual_url":"https://memento.epfl.ch/image/32226/200x112.jpg","visual_large_url":"https://memento.epfl.ch/image/32226/720x405.jpg","visual_maxsize_url":"https://memento.epfl.ch/image/32226/max-size.jpg","lang":"en","start_date":"2026-08-16","end_date":"2026-08-21","start_time":null,"end_time":null,"description":"<p>During a one-week Summer Workshop in Central London, students will explore drawing as a fundamental tool in architecture and engineering, engaging with the site as both a built environment and a historically transformed place. Developed in collaboration with Drawing Matter, London, the workshop integrates hands-on drawing with research into the Drawing Matter Collection, a unique archive of architectural drawings. <br>\r\n<br>\r\n<br>\r\n<strong>Project Team 2025</strong><br>\r\nDr. Patricia Guaita, architect, lecturer, IA ENAC EPFL<br>\r\nRaffael Baur, architect and external lecturer ENAC EPFL <br>\r\nNiall Hobhouse, collector and writer, Drawing Matter Director<br>\r\n <br>\r\n<strong>Invited expert</strong><br>\r\nMatthew Wells, Lecturer in Architectural Studies at University of Manchester <br>\r\n<br>\r\n<img alt=\"\" height=\"832\" src=\"//memento.epfl.ch/public/upload/fckeditorimage/40/0d/ed493c2f.jpg\" width=\"600\"></p>","image_description":"","creation_date":"2026-01-09T11:29:49","last_modification_date":"2026-01-09T12:07:25","link_label":"","link_url":"https://www.epfl.ch/schools/enac/education/projeter-ensemble-en/enac-summer-workshops/drawing-research-platform-london/","canceled":"False","cancel_reason":"","place_and_room":"","url_place_and_room":"","url_online_room":"","spoken_languages":["https://memento.epfl.ch/api/v1/spoken_languages/1/?format=json","https://memento.epfl.ch/api/v1/spoken_languages/2/?format=json"],"speaker":"","organizer":"Patricia Guaita, patricia.guaita@epfl.ch","contact":"Patricia Guaita, patricia.guaita@epfl.ch","is_internal":"False","theme":"","vulgarization":{"id":1,"fr_label":"Tout public","en_label":"General public"},"registration":{"id":3,"fr_label":"Entrée libre","en_label":"Free"},"keywords":"","file":null,"icalendar_url":"https://memento.epfl.ch/event/export/119248/","category":{"id":1,"code":"CONF","fr_label":"Conférences - Séminaires","en_label":"Conferences - Seminars","activated":true},"academic_calendar_category":null,"domains":[],"mementos":["https://memento.epfl.ch/api/v1/mementos/1/?format=json","https://memento.epfl.ch/api/v1/mementos/4/?format=json","https://memento.epfl.ch/api/v1/mementos/32/?format=json","https://memento.epfl.ch/api/v1/mementos/6/?format=json"]},{"id":70833,"title":"EESS seminar talk on \"Biogeochemical Controls on Arsenic Methylation and Demethylation in Rice Paddy Soils\"","slug":"eess-seminar-talk-on-biogeochemical-controls-on--2","event_url":"https://memento.epfl.ch/event/eess-seminar-talk-on-biogeochemical-controls-on--2","visual_url":"https://memento.epfl.ch/image/32237/200x112.jpg","visual_large_url":"https://memento.epfl.ch/image/32237/720x405.jpg","visual_maxsize_url":"https://memento.epfl.ch/image/32237/max-size.jpg","lang":"en","start_date":"2026-04-28","end_date":"2026-04-28","start_time":"12:15:00","end_time":"13:15:00","description":"<strong>Abstract:</strong>\r\n<div class=\"page\">\r\n<div class=\"layoutArea\">\r\n<div class=\"column\">Arsenic methylation and demethylation reactions influence arsenic speciation and fate in rice paddy soils, and understanding the balance between methylation and demethylation is important for assessing risks of arsenic toxicity in rice. Rice paddy soils are rich in organic carbon, and the conventional understanding has been that organic carbon enhances microbial arsenic methylation by fueling microbial activity.  This presentation will describe a series of recent investigations — spanning pure culture to greenhouse-scale experiments — that challenge this conceptual model.  First, the presentation will describe the role of carbon catabolite repression (CCR) in regulating cellular uptake and subsequent enzymatic methylation of arsenite.  A combination of biosensor, gene expression, and arsenic speciation analyses demonstrate that sugars lead to CCR and a decrease in arsenic methylation, while low molecular weight organic acids do not impact arsenite uptake.  The presentation will then examine couplings between methanogenesis and arsenic demethylation, wherein a greater abundance of methylotrophic carbon substrates (methanol, methylamines) promote arsenic demethylation by methanogens and limit the accumulation of methylated arsenic compounds.  A genome-resolved metatranscriptomic analysis of anaerobic soil slurry experiments resolved links between methylotrophic substrate utilization and arsenic demethylation, while greenhouse experiments showed that higher levels of methanogenesis in soils were associated with lower concentrations of methylated arsenic in rice grains. Taken together, these results provide a more nuanced understanding of how utilization of distinct carbon substrates impacts arsenic methylation-demethylation dynamics, and provides mechanistic insights into how paddy soil management practices influence arsenic speciation in rice.</div>\r\n</div>\r\n</div>\r\n<br>\r\n<br>\r\n<br>\r\n<strong>Biography:</strong>\r\n\r\n<div class=\"page\">\r\n<div class=\"layoutArea\">\r\n<div class=\"column\">Dr. Matthew Reid is an associate professor in the School of Civil and Environmental Engineering at Cornell University and directs the Biogeochemistry and Ecosystem Engineering Research Group. His research program focuses on biogeochemical element cycling in natural and nature-based systems with applications to water quality.  Research in the Reid Group spans physical scales and integrates mechanistic and molecular-level investigation with field-scale observation to build quantitative models for contaminant dynamics in complex biogeochemical systems. Dr. Reid's research has been recognized with early career awards from NSF and DOE. Dr. Reid was a postdoctoral scientist in the Environmental Microbiology Laboratory at EPFL, and completed his Ph.D. in Civil and Environmental Engineering at Princeton University.</div>\r\n</div>\r\n</div>","image_description":"","creation_date":"2026-01-12T14:34:48","last_modification_date":"2026-02-25T14:38:54","link_label":"","link_url":"","canceled":"False","cancel_reason":"","place_and_room":"GC B1 10","url_place_and_room":"https://plan.epfl.ch/?room==GC%20B1%2010","url_online_room":"https://epfl.zoom.us/j/69011077410","spoken_languages":["https://memento.epfl.ch/api/v1/spoken_languages/2/?format=json"],"speaker":"Prof. <a href=\"https://www.engineering.cornell.edu/people/matthew-charles-reid/\">Matthew Reid</a>, Cornell University ","organizer":"EESS - IIE","contact":"Prof. Rizlan Latmani, <a href=\"https://www.epfl.ch/labs/eml/\">EML</a>","is_internal":"True","theme":"","vulgarization":{"id":1,"fr_label":"Tout public","en_label":"General public"},"registration":{"id":3,"fr_label":"Entrée libre","en_label":"Free"},"keywords":"Arsenic, Methylation, Demethylation, Rice paddy soil, Carbon catabolite repression, Methanogenesis","file":null,"icalendar_url":"https://memento.epfl.ch/event/export/119269/","category":{"id":1,"code":"CONF","fr_label":"Conférences - Séminaires","en_label":"Conferences - Seminars","activated":true},"academic_calendar_category":null,"domains":[],"mementos":["https://memento.epfl.ch/api/v1/mementos/110/?format=json","https://memento.epfl.ch/api/v1/mementos/4/?format=json","https://memento.epfl.ch/api/v1/mementos/44/?format=json"]}]}