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X-WR-CALNAME:Physics & Astronomy
X-ORIGINAL-URL:https://uwm.edu/physics
X-WR-CALDESC:Events for Physics & Astronomy
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DTSTART;TZID=America/Chicago:20260417T130000
DTEND;TZID=America/Chicago:20260417T140000
DTSTAMP:20260611T034239
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:https://uwm.edu/physics/event/cgca-seminar-janeth-valverde/
LOCATION:Kenwood IRC 2175\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:CGCA Seminars
X-TRIBE-STATUS:
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BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20260417T153000
DTEND;TZID=America/Chicago:20260417T170000
DTSTAMP:20260611T034239
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:https://uwm.edu/physics/event/physics-colloquium-nick-stone/
LOCATION:Chemistry 108\, 2050 E Kenwood Blvd\, Milwaukee\, WI\, 53201\, United States
CATEGORIES:Physics Colloquia
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BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20260421T160000
DTEND;TZID=America/Chicago:20260421T173000
DTSTAMP:20260611T034239
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:https://uwm.edu/physics/event/physics-colloquium-thomas-d-killeen/
LOCATION:Kenwood IRC 2175\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Physics Colloquia
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BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20260424T130000
DTEND;TZID=America/Chicago:20260424T140000
DTSTAMP:20260611T034239
CREATED:20260130T141303Z
LAST-MODIFIED:20260424T132235Z
UID:10435385-1777035600-1777039200@uwm.edu
SUMMARY:CGCA Seminar - Matt Miles
DESCRIPTION:Galaxy-Scale Gravitational Wave Detection: The MPTA and the Road Ahead\nDr. Matt Miles\nVanderbilt University \nGravitational waves are emitted across a vast spectrum of frequencies. Ground-based detectors such as LIGO/Virgo/KAGRA observe relatively high-frequency waves from compact object mergers\, while at the other end of the spectrum\, the inspirals of supermassive black hole binaries produce a low-frequency rumble detectable only with a galaxy-scale instrument. By monitoring the pulses emitted by millisecond pulsars distributed across the Milky Way\, pulsar timing arrays construct such a detector\, spanning thousands of light-years. In recent years\, multiple pulsar timing array collaborations have reported mounting evidence for a gravitational wave background permeating the galaxy\, and the international effort to combine data across these experiments is well underway. In this talk\, I will describe how pulsar timing arrays operate\, what we have found so far — with a focus on the MeerKAT Pulsar Timing Array\, which exploits one of the world’s most sensitive radio telescopes — and the road ahead. I will also discuss new tools and techniques being developed to push the frontiers of pulsar timing\, including faster and more accessible timing software\, methods that exploit the full information content of pulse profiles rather than collapsing them to single arrival times\, and novel approaches to measuring pulsar distances using gravitational wave signals themselves.
URL:https://uwm.edu/physics/event/cgca-seminar-matt-miles/
LOCATION:Kenwood IRC 2175\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:CGCA Seminars
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BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20260501T130000
DTEND;TZID=America/Chicago:20260501T140000
DTSTAMP:20260611T034239
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:https://uwm.edu/physics/event/cgca-seminar-shanika-galaudage/
LOCATION:Kenwood IRC 2175\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:CGCA Seminars
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BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20260501T153000
DTEND;TZID=America/Chicago:20260501T170000
DTSTAMP:20260611T034239
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:https://uwm.edu/physics/event/physics-colloquium-justin-goodrich-2/
LOCATION:Chemistry 108\, 2050 E Kenwood Blvd\, Milwaukee\, WI\, 53201\, United States
CATEGORIES:Physics Colloquia
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BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20260508T153000
DTEND;TZID=America/Chicago:20260508T170000
DTSTAMP:20260611T034239
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:https://uwm.edu/physics/event/physics-colloquium-kyuil-cho/
LOCATION:Chemistry 108\, 2050 E Kenwood Blvd\, Milwaukee\, WI\, 53201\, United States
CATEGORIES:Physics Colloquia
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END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20260522T153000
DTEND;TZID=America/Chicago:20260522T170000
DTSTAMP:20260611T034239
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:https://uwm.edu/physics/event/physics-colloquium-jorge-alegre-cebollada/
LOCATION:Chemistry 108\, 2050 E Kenwood Blvd\, Milwaukee\, WI\, 53201\, United States
CATEGORIES:Physics Colloquia
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