{ "143316-21892896": { "datetime_modified":"20260131T114259", "datetime_start":"20260209T160000", "datetime_end":"20260209T170000", "has_end_time":1, "date_start":"2026-02-09", "date_end":"2026-02-09", "time_start":"16:00:00", "time_end":"17:00:00", "time_zone":"America\/Detroit", "event_title":"GLNT: On the separating words problem", "occurrence_title":"", "combined_title":"GLNT: On the separating words problem: Zachary Chase (Kent State University)", "event_subtitle":"Zachary Chase (Kent State University)", "event_type":"Workshop \/ Seminar", "event_type_id":"21", "description":"Abstract: What is the minimum number of states a deterministic finite automaton needs to distinguish between two given n-bit strings? We discuss progress on this problem made using unexpected techniques. No background assumed.", "occurrence_notes":null, "guid":"143316-21892896@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/143316", "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":"Group, Lie and Number Theory Seminar - Department of Mathematics", "group_id":"4892", "website":"" }, { "group_name":"Department of Mathematics", "group_id":"3791", "website":"" } ], "image_url":"https:\/\/events.umich.edu\/media\/attachments\/2026\/01\/event_143316_original-1.png", "styled_images":{ "event_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_thumb\/media\/attachments\/2026\/01\/crop-event_143316_original-1.png", "event_large":"https:\/\/events.umich.edu\/media\/cache\/event_large\/media\/attachments\/2026\/01\/crop-event_143316_original-1.png", "event_large_2x":"https:\/\/events.umich.edu\/media\/cache\/event_large_2x\/media\/attachments\/2026\/01\/crop-event_143316_original-1.png", "event_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/event_large_lightbox\/media\/attachments\/2026\/01\/crop-event_143316_original-1.png", "group_thumb":"https:\/\/events.umich.edu\/media\/cache\/group_thumb\/media\/attachments\/2026\/01\/crop-event_143316_original-1.png", "group_thumb_square":"https:\/\/events.umich.edu\/media\/cache\/group_thumb_square\/media\/attachments\/2026\/01\/crop-event_143316_original-1.png", "group_large":"https:\/\/events.umich.edu\/media\/cache\/group_large\/media\/attachments\/2026\/01\/crop-event_143316_original-1.png", "group_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/group_large_lightbox\/media\/attachments\/2026\/01\/crop-event_143316_original-1.png", "event_large_crop":"https:\/\/events.umich.edu\/media\/cache\/event_large_crop\/media\/attachments\/2026\/01\/crop-event_143316_original-1.png", "event_list":"https:\/\/events.umich.edu\/media\/cache\/event_list\/media\/attachments\/2026\/01\/crop-event_143316_original-1.png", "event_list_2x":"https:\/\/events.umich.edu\/media\/cache\/event_list_2x\/media\/attachments\/2026\/01\/crop-event_143316_original-1.png", "event_grid":"https:\/\/events.umich.edu\/media\/cache\/event_grid\/media\/attachments\/2026\/01\/crop-event_143316_original-1.png", "event_grid_2x":"https:\/\/events.umich.edu\/media\/cache\/event_grid_2x\/media\/attachments\/2026\/01\/crop-event_143316_original-1.png", "event_feature_large":"https:\/\/events.umich.edu\/media\/cache\/event_feature_large\/media\/attachments\/2026\/01\/crop-event_143316_original-1.png", "event_feature_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_feature_thumb\/media\/attachments\/2026\/01\/crop-event_143316_original-1.png" }, "occurrence_count":1, "first_occurrence":21892896 } , "139893-21886296": { "datetime_modified":"20260105T105730", "datetime_start":"20260209T160000", "datetime_end":"20260209T171500", "has_end_time":1, "date_start":"2026-02-09", "date_end":"2026-02-09", "time_start":"16:00:00", "time_end":"17:15:00", "time_zone":"America\/Detroit", "event_title":"Gomberg Lecture with Gil Nathanson \"Big Atmosphere, Little Droplets, Tiny Atoms: What Can Helium Atoms Teach Us About Sea Spray?\"", "occurrence_title":"", "combined_title":"Gomberg Lecture with Gil Nathanson \"Big Atmosphere, Little Droplets, Tiny Atoms: What Can Helium Atoms Teach Us About Sea Spray?\": Gil Nathanson (University of Wisconsin\u2013Madison)", "event_subtitle":"Gil Nathanson (University of Wisconsin\u2013Madison)", "event_type":"Workshop \/ Seminar", "event_type_id":"21", "description":"Sea spray droplets are complex beasts that contain surface-active organic molecules in addition to water and salts. These aerosol particles behave like little chemical laboratories that transform gases in the atmosphere and alter the concentration of key species, including ozone, the hydroxyl radical, and methane. But what do helium atoms have to with aerosols? Amazingly, when helium atoms are dissolved in sea spray proxies, they evaporate at super-Maxwellian speeds that vary sensitively with the identity of the salts and surfactants in solution. The excess helium kinetic energies teach us about the interfacial morphologies of surfactant-salt-water solutions, which we can explain using two beautiful chemical concepts: the principle of detailed balance and potentials of mean force. We can use what we have learned to discuss how charged surfactants can significantly alter the outcome of reactions in sea spray because they control the segregation of reactive ions to the surface. Just a speck of surfactant goes a long way!\r\n\r\nThis talk will include some fun hands-on soapy water activities at your seat. Please bring your water bottle if you have one.", "occurrence_notes":null, "guid":"139893-21886296@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/139893", "building_id":"1000158", "building_name":"Chemistry Dow Lab", "campus_maps_id":"34", "room":"1640", "location_name":"Chemistry Dow Lab", "has_livestream":0, "cost":"", "tags":["Chemistry"], "website":"https:\/\/chem.wisc.edu\/staff\/nathanson-gilbert\/", "sponsors":[ { "group_name":"Department of Chemistry", "group_id":"3761", "website":"https:\/\/lsa.umich.edu\/chem" } ], "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":21886296 } }