BEGIN:VCALENDAR VERSION:2.0 PRODID:-//Physics & Astronomy - ECPv6.15.18//NONSGML v1.0//EN CALSCALE:GREGORIAN METHOD:PUBLISH X-WR-CALNAME:Physics & Astronomy X-ORIGINAL-URL:/physics X-WR-CALDESC:Events for Physics & Astronomy REFRESH-INTERVAL;VALUE=DURATION:PT1H X-Robots-Tag:noindex X-PUBLISHED-TTL:PT1H BEGIN:VTIMEZONE TZID:America/Chicago BEGIN:DAYLIGHT TZOFFSETFROM:-0600 TZOFFSETTO:-0500 TZNAME:CDT DTSTART:20250309T080000 END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:-0500 TZOFFSETTO:-0600 TZNAME:CST DTSTART:20251102T070000 END:STANDARD BEGIN:DAYLIGHT TZOFFSETFROM:-0600 TZOFFSETTO:-0500 TZNAME:CDT DTSTART:20260308T080000 END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:-0500 TZOFFSETTO:-0600 TZNAME:CST DTSTART:20261101T070000 END:STANDARD BEGIN:DAYLIGHT TZOFFSETFROM:-0600 TZOFFSETTO:-0500 TZNAME:CDT DTSTART:20270314T080000 END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:-0500 TZOFFSETTO:-0600 TZNAME:CST DTSTART:20271107T070000 END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTART;TZID=America/Chicago:20260417T130000 DTEND;TZID=America/Chicago:20260417T140000 DTSTAMP:20260414T174008 CREATED:20260130T141202Z LAST-MODIFIED:20260130T141202Z UID:10435384-1776430800-1776434400@uwm.edu SUMMARY:CGCA Seminar - Janeth Valverde DESCRIPTION:Title and abstract to be determined\nJaneth Valverde\nMarquette University \nThe abstract for this talk will be added as soon as it is made available. URL:/physics/event/cgca-seminar-janeth-valverde/ LOCATION:Kenwood IRC 2175\, Milwaukee\, WI\, 53211\, United States CATEGORIES:CGCA Seminars X-TRIBE-STATUS: END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/Chicago:20260417T153000 DTEND;TZID=America/Chicago:20260417T170000 DTSTAMP:20260414T174008 CREATED:20260212T194448Z LAST-MODIFIED:20260413T143551Z UID:10435390-1776439800-1776445200@uwm.edu SUMMARY:Physics Colloquium - Nicholas Stone DESCRIPTION:Gravitational Waves from Galactic Nuclei\nNicholas Stone\, Assistant Professor\nDepartment of Astronomy\, University of Wisconsin-Madison \nThe discovery of GW150914 inaugurated the era of gravitational wave (GW) astronomy\, opening a new window to study our Universe’s compact objects and through which to test general relativity. Now\, a decade later\, the LIGO-Virgo-KAGRA (LVK) collaboration has seen hundreds of GW signals\, overwhelmingly from mergers of binary stellar mass black holes. Despite the many successes of GW astronomy\, a zeroth-order astrophysical question remains unanswered: what astrophysical environments produce the LVK binary black holes\, and by what process are they assembled? Although many formation channels have been proposed\, one uniquely testable solution is the “AGN channel:” a scenario in which individual black holes pair up and merge in the dissipative gaseous environment of an active galactic nucleus. I will review recent progress in understanding the ecology of stars and black holes embedded in the massive gas disks of AGN\, an astrophysics problem not unlike that describing planet formation in protoplanetary gas disks. I will then describe the unique predictions of the AGN channel for the LVK population of binary black hole mergers\, focusing both on GW signatures as well as electromagnetic counterparts\, both direct (transient) and indirect (statistical). Finally\, I will briefly discuss the implications of the AGN channel for a future class of GW sources: the extreme mass ratio inspirals visible to future mHz space-based interferometers such as LISA\, which are produced when stellar mass black holes inspiral into the supermassive ones at the very centers of active or quiescent galactic nuclei. URL:/physics/event/physics-colloquium-nick-stone/ LOCATION:Chemistry 108\, 2050 E 51\, Milwaukee\, WI\, 53201\, United States CATEGORIES:Physics Colloquia X-TRIBE-STATUS: END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/Chicago:20260421T160000 DTEND;TZID=America/Chicago:20260421T173000 DTSTAMP:20260414T174008 CREATED:20260413T201616Z LAST-MODIFIED:20260413T201616Z UID:10435396-1776787200-1776792600@uwm.edu SUMMARY:Physics Colloquium - Thomas D. Killeen DESCRIPTION:Novel Imaging Techniques for Studying Interactions of Membrane Receptors Among Themselves and with Downstream Signaling Partners\nThomas D. Killeen\, PhD Candidate\nUniversity of Wisconsin-Milwaukee Department of Physics & Astronomy \nCells rely on complex signaling networks to sense and respond to environmental stimuli\, but the bigger picture of how molecular assembly leads to robust cellular signaling is only beginning to emerge. A major challenge in characterizing cellular signaling is the ability to directly observe the dynamic interactions between membrane receptors and intracellular signaling partners in living cells. To address this challenge\, this work presents the development of advanced fluorescence imaging and computational analysis tools designed to improve the precision and quantitative power of live-cell micro-spectroscopy for studying protein dynamics in real time. \nI will show how these tools can be used to investigate the interactions between the muscarinic acetylcholine receptor M2 (M2R) and two intracellular signaling partners\, arrestin-2 and arrestin-3\, in living cells. Quantitative imaging revealed distinct differences in arrestin recruitment and membrane association following receptor activation\, providing new insight into receptor regulation and signaling behavior. \nOverall\, this work demonstrates how innovations in fluorescence microscopy and data analysis can expand our ability to probe molecular signaling networks in living systems. URL:/physics/event/physics-colloquium-thomas-d-killeen/ LOCATION:Kenwood IRC 2175\, Milwaukee\, WI\, 53211\, United States CATEGORIES:Physics Colloquia X-TRIBE-STATUS: END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/Chicago:20260424T130000 DTEND;TZID=America/Chicago:20260424T140000 DTSTAMP:20260414T174008 CREATED:20260130T141303Z LAST-MODIFIED:20260130T141303Z UID:10435385-1777035600-1777039200@uwm.edu SUMMARY:CGCA Seminar - Matt Miles DESCRIPTION:Title and abstract to be determined\nMatt Miles\nVanderbilt University \nThe abstract for this talk will be added as soon as it is made available. URL:/physics/event/cgca-seminar-matt-miles/ LOCATION:Kenwood IRC 2175\, Milwaukee\, WI\, 53211\, United States CATEGORIES:CGCA Seminars X-TRIBE-STATUS: END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/Chicago:20260501T130000 DTEND;TZID=America/Chicago:20260501T140000 DTSTAMP:20260414T174008 CREATED:20260219T154346Z LAST-MODIFIED:20260219T154346Z UID:10435394-1777640400-1777644000@uwm.edu SUMMARY:CGCA Seminar - Shanika Galaudage DESCRIPTION:Title and abstract to be determined\nShanika Galaudage\nNorthwestern University \nThe abstract for this talk will be added as soon as it is made available. URL:/physics/event/cgca-seminar-shanika-galaudage/ LOCATION:Kenwood IRC 2175\, Milwaukee\, WI\, 53211\, United States CATEGORIES:CGCA Seminars X-TRIBE-STATUS: END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/Chicago:20260501T153000 DTEND;TZID=America/Chicago:20260501T170000 DTSTAMP:20260414T174008 CREATED:20260212T194613Z LAST-MODIFIED:20260413T143321Z UID:10435391-1777649400-1777654800@uwm.edu SUMMARY:Physics Colloquium - Cancelled DESCRIPTION:This week’s Physics Colloquium has been cancelled. URL:/physics/event/physics-colloquium-justin-goodrich-2/ LOCATION:Chemistry 108\, 2050 E 51\, Milwaukee\, WI\, 53201\, United States CATEGORIES:Physics Colloquia X-TRIBE-STATUS: END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/Chicago:20260508T153000 DTEND;TZID=America/Chicago:20260508T170000 DTSTAMP:20260414T174008 CREATED:20260212T194745Z LAST-MODIFIED:20260403T160023Z UID:10435392-1778254200-1778259600@uwm.edu SUMMARY:Physics Colloquium - Kyuil Cho DESCRIPTION:Superconductors Investigated by High-Energy Particle Irradiation\nDr. Kyuil Cho\, Assistant Professor\nDepartment of Physics\, Hope College \nSuperconductor is a material that shows zero resistivity and Meissner effect below its critical temperature. This material has been used for various applications such as superconducting wires\, medical device MRI\, superconducting magnets for particle accelerators\, quantum computing circuits\, and many more. The superconductivity research group at Hope College conducts unique research on novel superconductors by using high energy particles. High energy particle irradiation is a useful method to generate homogeneous artificial defects on superconductors. By investigating how the defects affect the properties of superconductors\, one can uncover the fundamental mechanism of superconductivity. \nIn this talk\, recent investigations on YBCO (0.6 and 1.7 MeV proton) and NbSe2 (2.5 MeV electron) will be presented. URL:/physics/event/physics-colloquium-kyuil-cho/ LOCATION:Chemistry 108\, 2050 E 51\, Milwaukee\, WI\, 53201\, United States CATEGORIES:Physics Colloquia X-TRIBE-STATUS: END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/Chicago:20260522T153000 DTEND;TZID=America/Chicago:20260522T170000 DTSTAMP:20260414T174008 CREATED:20260219T153653Z LAST-MODIFIED:20260401T154020Z UID:10435393-1779463800-1779469200@uwm.edu SUMMARY:Physics Colloquium - Jorge Alegre-Cebollada DESCRIPTION:Titin-based Molecular Underpinnings of Skeletal and Cardiac Muscle Function\nJorge Alegre-Cebollada\, PhD\nAssociate Professor & Group Leader\, CNIC (Spanish National Center for Cardiovascular Research) \nTitin is the largest protein in the human body. The function of the protein is not any smaller: it is critical for the contractile activity of muscles in the skeletal system and in the heart. In my presentation\, I will introduce fundamental concepts that link titin nanomechanics with the macroscopic mechanical function of muscle. I will focus on our recent data demonstrating dysregulation of titin nanomechanics that can contribute to increased risk of heart failure in diabetic patients. \nTowards the end of my presentation\, I will describe how to harness titin mechanics to develop hydrogels with tailored viscoelasticity for applications in cell mechanobiology. Time permitting\, I will discuss about new models to study titin mechanics in living matter. URL:/physics/event/physics-colloquium-jorge-alegre-cebollada/ LOCATION:Chemistry 108\, 2050 E 51\, Milwaukee\, WI\, 53201\, United States CATEGORIES:Physics Colloquia X-TRIBE-STATUS: END:VEVENT END:VCALENDAR