{ "143251-21892553": { "datetime_modified":"20260106T082650", "datetime_start":"20260114T150000", "datetime_end":"20260114T160000", "has_end_time":1, "date_start":"2026-01-14", "date_end":"2026-01-14", "time_start":"15:00:00", "time_end":"16:00:00", "time_zone":"America\/Detroit", "event_title":"Department Colloquium | Nanoscale Soft Matter Under Electron Microscopy", "occurrence_title":"", "combined_title":"Department Colloquium | Nanoscale Soft Matter Under Electron Microscopy: Qian Chen (University of Illinois at Urbana-Champaign)", "event_subtitle":"Qian Chen (University of Illinois at Urbana-Champaign)", "event_type":"Workshop \/ Seminar", "event_type_id":"21", "description":"We are fascinated with nanoscale soft matter, which crosses the boundaries of synthetic and living systems and defies simple mean-field theories or coarse-grained models. In this talk, I will show a few of our recent case studies, with new understandings provided by our multimodal \u201celectron videography.\u201d The first is the measurement and significance of interactions beyond nearest neighbors in colloidal nanoparticles in and out of equilibrium. These interactions not only determine the phase behaviors of nucleation and crystal growth, but the phonon mode structures if we treat nanoparticle self-assemblies as a new type of mechanical metamaterials. We establish accordingly the rules of nanoscale phonon manipulation in complex and new assembly structures such as Maxwell lattice with floppy modes and moir\u00e9 lattices with angle-dependent band structures. The second is the measurement and design of structural heterogeneity of nanoparticles, polymers, and biological systems. We show that scaling theory needs to be coupled with atomic functional density theory to predict, for example, nanopatterning of polymers on surfaces. We also show the spatiotemporal fluctuations of proteins and cells during interactions, which can impact greatly the function and efficacy of interactions. The third is the existence and generation of defects and strain in crystalline nanomaterials, let them be catalysts or electrodes. Atomic lattices are \u201csoftened\u201d in these systems, leading to extended strain patterns in three dimensions that we visualize at the nanoscale. All these new observations are aligned with our push of electron videography and automation to make the invisible visible, and we see this as the beginning of a more comprehensive understanding and utilization of nanoscale soft matter.\r\n\r\nBiography: \r\nProf. Qian Chen is currently a professor and Racheff Scholar in the Department of Materials Science and Engineering at the University of Illinois Urbana-Champaign. She got her BS degree in chemistry from Peking University and her PhD degree from the same department with Prof. Steve Granick. She completed her postdoctoral research with Prof. Paul Alivisatos at the University of California, Berkeley, under a Miller Fellowship. She became a faculty in 2015 and since then has received awards for the research in her group, such as the Forbes 30 under 30 Science List (2016), the AFOSR YIP (2017), the NSF CAREER award (2018), the Sloan Research Fellow in Chemistry (2018), the ACS Unilever Award (2018), the Hanwha-TotalEnergies IUPAC Young Scientist Award (2022), the Soft Matter Lectureship (2023), the Provost's Award for Excellence in Graduate Student Mentoring (2024), the MRS Outstanding Early-Career Investigator Award (2024), the ACS Langmuir lectureship (2025) and ACS Nano lectureship (2025). Her group\u2019s research focuses on imaging, understanding, and engineering soft, biological, and energy materials at the nanoscale.", "occurrence_notes":null, "guid":"143251-21892553@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/143251", "building_id":"1000167", "building_name":"West Hall", "campus_maps_id":"163", "room":"340", "location_name":"West Hall", "has_livestream":0, "cost":"", "tags":["Physics","Science"], "website":"", "sponsors":[ { "group_name":"Department Colloquia", "group_id":"3804", "website":"" }, { "group_name":"Department of Physics", "group_id":"1965", "website":"" } ], "image_url":"", "styled_images":{ "event_thumb":"", "event_large":"", "event_large_2x":"", "event_large_lightbox":"", "group_thumb":"", "group_thumb_square":"", "group_large":"", "group_large_lightbox":"", "event_large_crop":"", "event_list":"", "event_list_2x":"", "event_grid":"", "event_grid_2x":"", "event_feature_large":"", "event_feature_thumb":"" }, "occurrence_count":1, "first_occurrence":21892553 } , "138848-21885038": { "datetime_modified":"20251202T115505", "datetime_start":"20260114T150000", "datetime_end":"20260114T160000", "has_end_time":1, "date_start":"2026-01-14", "date_end":"2026-01-14", "time_start":"15:00:00", "time_end":"16:00:00", "time_zone":"America\/Detroit", "event_title":"Grants office hours: Get support applying for one of SSC's Sustainability Grants!", "occurrence_title":"", "combined_title":"Grants office hours: Get support applying for one of SSC's Sustainability Grants!", "event_subtitle":"", "event_type":"Other", "event_type_id":"22", "description":"Drop in to our weekly open office hours to learn and get support applying to our Planet Blue Student Innovation Fund (PBSIF) or Social and Environmental Sustainability Grant (SES).", "occurrence_notes":null, "guid":"138848-21885038@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/138848", "building_id":"null", "building_name":"Off Campus Location", "campus_maps_id":"1", "room":"", "location_name":"Virtual", "has_livestream":1, "livestream_type":"other", "livetream_require_login":0, "livestream_id":"", "livestream_link":"https:\/\/meet.google.com\/hck-wekf-yci", "cost":"", "tags":["Environment","Sustainability"], "website":"https:\/\/planetblue.umich.edu\/campus\/get-involved\/for-students\/ssc\/grants\/", "sponsors":[ { "group_name":"Student Sustainability Coalition", "group_id":"4616", "website":"" } ], "image_url":"https:\/\/events.umich.edu\/media\/attachments\/2025\/09\/event_138848_original-1.png", "styled_images":{ "event_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_thumb\/media\/attachments\/2025\/09\/event_138848_original-1.png", "event_large":"https:\/\/events.umich.edu\/media\/cache\/event_large\/media\/attachments\/2025\/09\/event_138848_original-1.png", "event_large_2x":"https:\/\/events.umich.edu\/media\/cache\/event_large_2x\/media\/attachments\/2025\/09\/event_138848_original-1.png", 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"time_zone":"America\/Detroit", "event_title":"Student DGT Planning Meeting", "occurrence_title":"", "combined_title":"Student DGT Planning Meeting", "event_subtitle":"", "event_type":"Workshop \/ Seminar", "event_type_id":"21", "description":"Student DGT will be happening on Wednesdays from 3-4 PM in EH 3866 this semester. We\u2019ll be holding our planning meeting Wednesday, January 14th (3-4 PM, EH 3866) and talks will hopefully begin the week after.\r\n\r\nPlease come sign up to give a talk! You can email gshemy@umich.edu or mohithna@umich.edu if you\u2019re unable to make the planning meeting but are interested in giving a talk.", "occurrence_notes":null, "guid":"143707-21893697@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/143707", "building_id":"1000166", "building_name":"East Hall", "campus_maps_id":"53", "room":"3866", "location_name":"East Hall", "has_livestream":0, "cost":"", "tags":["Mathematics"], "website":"", "sponsors":[ { "group_name":"Student Dynamics\/Geometry\/Topology Seminar - Department of Mathematics", "group_id":"4909", "website":"" }, { "group_name":"Department of Mathematics", "group_id":"3791", "website":"" } ], "image_url":"", "styled_images":{ "event_thumb":"", "event_large":"", "event_large_2x":"", "event_large_lightbox":"", "group_thumb":"", "group_thumb_square":"", "group_large":"", "group_large_lightbox":"", "event_large_crop":"", "event_list":"", "event_list_2x":"", "event_grid":"", "event_grid_2x":"", "event_feature_large":"", "event_feature_thumb":"" }, "occurrence_count":1, "first_occurrence":21893697 } , "143880-21894200": { "datetime_modified":"20260113T175749", "datetime_start":"20260114T150000", "datetime_end":"20260114T160000", "has_end_time":1, "date_start":"2026-01-14", "date_end":"2026-01-14", "time_start":"15:00:00", "time_end":"16:00:00", "time_zone":"America\/Detroit", "event_title":"Student DGT Seminar: Planning Meeting", "occurrence_title":"", "combined_title":"Student DGT Seminar: Planning Meeting", "event_subtitle":"", "event_type":"Workshop \/ Seminar", "event_type_id":"21", "description":"Let us plan the schedule for this semester. We welcome new ideas for reading groups, discussions, and related activities. We especially encourage first-year PhD students to attend.", "occurrence_notes":null, "guid":"143880-21894200@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/143880", "building_id":"1000166", "building_name":"East Hall", "campus_maps_id":"53", "room":"EH3866", "location_name":"East Hall", "has_livestream":0, "cost":"", "tags":["Mathematics"], "website":"", "sponsors":[ { "group_name":"Student Dynamics\/Geometry\/Topology Seminar - Department of Mathematics", "group_id":"4909", "website":"" } ], "image_url":"", "styled_images":{ "event_thumb":"", "event_large":"", "event_large_2x":"", "event_large_lightbox":"", "group_thumb":"", "group_thumb_square":"", "group_large":"", "group_large_lightbox":"", "event_large_crop":"", "event_list":"", "event_list_2x":"", "event_grid":"", "event_grid_2x":"", "event_feature_large":"", "event_feature_thumb":"" }, "occurrence_count":1, "first_occurrence":21894200 } , "142624-21891232": { "datetime_modified":"20251211T193113", "datetime_start":"20260114T150000", "datetime_end":"20260114T160000", "has_end_time":1, "date_start":"2026-01-14", "date_end":"2026-01-14", "time_start":"15:00:00", "time_end":"16:00:00", "time_zone":"America\/Detroit", "event_title":"Webinar: Habitat Heartbeats: Listening to What Oysters and Mussels Can Tell Us about Southern California Estuaries", "occurrence_title":"", "combined_title":"Webinar: Habitat Heartbeats: Listening to What Oysters and Mussels Can Tell Us about Southern California Estuaries", "event_subtitle":"", "event_type":"Lecture \/ Discussion", "event_type_id":"13", "description":"Southern California\u2019s estuaries can experience large swings in water quality due to events like freshwater inflow, sewage spills, and estuary mouth closures. The Tijuana River NERR (TRNERR) monitors several estuaries in San Diego County to better understand how biological communities respond to changes in water quality. Through an iterative process with TRNERR and other users, this project team co-developed a biosensor monitoring system that uses shellfish (oysters and mussels) as biosentinels. Alongside state and local land managers and other wetland and aquaculture professionals, the team designed an open-source electronic sensor that attaches to shellfish and monitors gaping behavior and heart rate. These metrics that can be used as indicators of physiological stress in response to environmental changes.\r\n\r\nIn this webinar, the project team will describe their collaborative process within the team and with additional potential end users. Potential users included resource managers, aquaculture practitioners, and research biologists working with these bivalves in other settings. The team will describe the basic components of the biosensor equipment and approaches used in the field and lab for gathering and analyzing data. Data from the focal estuaries will be used to illustrate individual and group responses of the biosentinel bivalves to rapidly-shifting water quality conditions.", "occurrence_notes":null, "guid":"142624-21891232@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/142624", "building_id":"null", "building_name":"Off Campus Location", "campus_maps_id":"1", "room":"", "location_name":"Virtual", "has_livestream":1, "livestream_type":"other", "livetream_require_login":0, "livestream_id":"", "livestream_link":"", "cost":"", "tags":["Environment","Sustainability"], "website":"https:\/\/nerrssciencecollaborative.org\/event\/habitat-heartbeats", "sponsors":[ { "group_name":"Graham Sustainability Institute", "group_id":"1807", "website":"http:\/\/graham.umich.edu" } ], "image_url":"", "styled_images":{ "event_thumb":"", "event_large":"", "event_large_2x":"", "event_large_lightbox":"", "group_thumb":"", "group_thumb_square":"", "group_large":"", "group_large_lightbox":"", "event_large_crop":"", "event_list":"", "event_list_2x":"", "event_grid":"", "event_grid_2x":"", "event_feature_large":"", "event_feature_thumb":"" }, "occurrence_count":1, "first_occurrence":21891232 } , "141525-21888971": { "datetime_modified":"20260109T111208", "datetime_start":"20260114T153000", "datetime_end":"20260114T170000", "has_end_time":1, "date_start":"2026-01-14", "date_end":"2026-01-14", "time_start":"15:30:00", "time_end":"17:00:00", "time_zone":"America\/Detroit", "event_title":"Algebraic Geometry Seminar: Stability and Moduli on Kuznetsov Components of Cubic 5-Folds", "occurrence_title":"", "combined_title":"Algebraic Geometry Seminar: Stability and Moduli on Kuznetsov Components of Cubic 5-Folds: Peize Liu (University of Warwick)", "event_subtitle":"Peize Liu (University of Warwick)", "event_type":"Workshop \/ Seminar", "event_type_id":"21", "description":"Bridgeland stability is notoriously hard to construct on varieties of dimension > 2. One promising workaround is to focus on the Kuznetsov component of Fano varieties \u2014 a residual piece of the derived category that often captures the essential geometric information. In this talk, I will explain the construction of stability conditions on Kuznetsov components using the machinery of quadric fibrations introduced by Bayer\u2013Lahoz\u2013Macr\u00ec\u2013Stellari. I will illustrate how this technique applies to cubic 5-folds as a new higher-dimensional example. In the second part, I will then describe properties of the associated moduli spaces. In particular, they admit immersions into hyper-K\u00e4hler varieties with Lagrangian image, generalizing a geometric construction of Illiev\u2013Manivel.", "occurrence_notes":null, "guid":"141525-21888971@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/141525", "building_id":"1000166", "building_name":"East Hall", "campus_maps_id":"53", "room":"4096", "location_name":"East Hall", "has_livestream":0, "cost":"", "tags":["Mathematics"], "website":"", "sponsors":[ { "group_name":"Algebraic Geometry Seminar - Department of Mathematics", "group_id":"4880", "website":"" }, { "group_name":"Department of Mathematics", "group_id":"3791", "website":"" } ], "image_url":"", "styled_images":{ "event_thumb":"", "event_large":"", "event_large_2x":"", "event_large_lightbox":"", "group_thumb":"", "group_thumb_square":"", "group_large":"", "group_large_lightbox":"", "event_large_crop":"", "event_list":"", "event_list_2x":"", "event_grid":"", "event_grid_2x":"", "event_feature_large":"", "event_feature_thumb":"" }, "occurrence_count":1, "first_occurrence":21888971 } , "143554-21893382": { "datetime_modified":"20260108T203801", "datetime_start":"20260114T160000", "datetime_end":"20260114T170000", "has_end_time":1, "date_start":"2026-01-14", "date_end":"2026-01-14", "time_start":"16:00:00", "time_end":"17:00:00", "time_zone":"America\/Detroit", "event_title":"Macroscopic market making", "occurrence_title":"", "combined_title":"Macroscopic market making: Shijia Jin, Monash", "event_subtitle":"Shijia Jin, Monash", "event_type":"Workshop \/ Seminar", "event_type_id":"21", "description":"Trade execution and market making are two central problems in algorithmic trading that have largely been studied in separate literatures. In this talk, I present a unified approach that addresses both problems simultaneously in three steps.\r\n\r\nWe introduce a macroscopic market making model \u00e0 la Avellaneda-Stoikov, using continuous processes for orders instead of discrete point processes. Since the impact of a single market maker on price is typically negligible, we then develop the corresponding game formulation. Finally, we can connect traders with market makers.\r\n \r\nSubsequently, we present our mathematical contributions. The goal is to derive the global well\u2011posedness of the optimal control\/Nash equilibrium. The discussion addresses topics in game theory, non\u2011smooth analysis, FBSDEs, and Riccati equations.\r\n\r\nReferences:\r\nIvan Guo, Shijia Jin, and Kihun Nam, Macroscopic Market Making. Forthcoming in Finance & Stochastics. Preprint: arXiv:2307.14129.\r\nIvan Guo and Shijia Jin, Macroscopic Market Making Games. Forthcoming in Mathematical Finance. DOI: 10.1111\/mafi.70010.\r\nIvan Guo and Shijia Jin, Optimal Execution and Macroscopic Market Making. Working paper. Preprint: arXiv:2504.06717.", "occurrence_notes":null, "guid":"143554-21893382@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/143554", "building_id":"null", "building_name":"Off Campus Location", "campus_maps_id":"1", "room":"", "location_name":"Virtual", "has_livestream":1, "livestream_type":"other", "livetream_require_login":0, "livestream_id":"", "livestream_link":"", "cost":"", "tags":["Mathematics"], "website":"", "sponsors":[ { "group_name":"Financial\/Actuarial Mathematics Seminar - Department of Mathematics", "group_id":"4890", "website":"" }, { "group_name":"Department of Mathematics", "group_id":"3791", "website":"" } ], "image_url":"", "styled_images":{ "event_thumb":"", "event_large":"", "event_large_2x":"", "event_large_lightbox":"", "group_thumb":"", "group_thumb_square":"", "group_large":"", "group_large_lightbox":"", "event_large_crop":"", "event_list":"", "event_list_2x":"", "event_grid":"", "event_grid_2x":"", "event_feature_large":"", "event_feature_thumb":"" }, "occurrence_count":1, "first_occurrence":21893382 } }