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DTSTART:20070311T020000
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BEGIN:VEVENT
DTSTAMP:20250421T142019
DTSTART;TZID=America/Detroit:20250421T150000
DTEND;TZID=America/Detroit:20250421T163000
SUMMARY:Workshop / Seminar:Book Discussion of Thom van Dooren's Flight Ways (EHW)
DESCRIPTION:
UID:134698-21874753@events.umich.edu
URL:https://events.umich.edu/event/134698
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Sessions
LOCATION:Angell Hall 3241
CONTACT:
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BEGIN:VEVENT
DTSTAMP:20250417T094014
DTSTART;TZID=America/Detroit:20250421T150000
DTEND;TZID=America/Detroit:20250421T160000
SUMMARY:Workshop / Seminar:EEB Prelim Seminar Series - Variation and Plasticity: Investigating the evolutionary history of migratory variation and seasonal phenotypic plasticity in the butterfly genus Danaus
DESCRIPTION:Seminar Preview: The annual migration of the monarch butterfly spans over 4\,000 km and facilitates the aggregation of millions of individual butterflies in south-central Mexico each winter. The monarch migratory syndrome is complex\, integrating behavior\, morphology\, and physiology in an environmentally sensitive manner. Underlying this syndrome is an expansive genetic suite encompassing over 500 genes\, as well as a significant capacity for seasonally-sensitive phenotypic plasticity. The evolutionary histories of this genetic suite and capacity for seasonal plasticity remain largely unknown beyond within-monarch assessments.\nMonarch migration is an emerging model for testing broader hypotheses about the evolution of animal migration\, complex traits\, and the role of plasticity in adaptive evolution. A clearer understanding of how this spectacular phenomenon has emerged within just the past 20\,000 years is necessary to better contextualize evolutionary inferences drawn from this model. My dissertation research will focus on characterizing patterns of seasonal plasticity as well as migratory genetic and phenotypic variation within the butterfly genus Danaus. This work integrates comparative approaches in phylogenomics and developmental genetics to generate insights into how key features of the monarch migratory syndrome have evolved within the genus.
UID:135090-21876059@events.umich.edu
URL:https://events.umich.edu/event/135090
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:evolutionary biology,Biology,Bsbsigns,department of ecology and evolutionary biology,ecology,Ecology & Biology,Ecology And Evolutionary Biology,eeb,Free,Graduate School,Graduate Students,Museum - Herbarium,Museum - Zoology,Museum Of Zoology
LOCATION:Biological Sciences Building - 1010
CONTACT:
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BEGIN:VEVENT
DTSTAMP:20250420T072159
DTSTART;TZID=America/Detroit:20250421T150000
DTEND;TZID=America/Detroit:20250421T170000
SUMMARY:Workshop / Seminar:GLNT: Near-center derivatives and arithmetic 1-cycles
DESCRIPTION:Abstract:\n\nTheta series for lattices count lattice vectors of fixed norm. Such theta series give some of the first examples of automorphic forms.\n\nIt is possible to form \"theta series\" in other geometric contexts\, e.g. for counting problems involving abelian varieties.\nIt is expected that these theta series again have additional automorphic symmetry.\n\nI will explain some “near-central” instances of an arithmetic Siegel--Weil formula from Kudla’s program. These \"geometrize\" the classical Siegel--Weil formulas\, on lattice and lattice vector counting via Eisenstein series.\n\nAt these near-central points of functional symmetry\, we observe that both the \"leading\" special value (complex volumes) and the \"subleading\" first derivative (arithmetic volume) simultaneously have geometric meaning.\n\nThe key input is a new \"limit phenomenon\" relating positive characteristic intersection numbers and heights in mixed characteristic\, as well as its automorphic counterpart.
UID:135133-21876343@events.umich.edu
URL:https://events.umich.edu/event/135133
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 3088
CONTACT:
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BEGIN:VEVENT
DTSTAMP:20250415T121310
DTSTART;TZID=America/Detroit:20250421T150000
DTEND;TZID=America/Detroit:20250421T160000
SUMMARY:Workshop / Seminar:HEP-Astro Seminar | Rapid Inference of Galaxy Properties in the Age of Deep and Large-Scale Surveys of the Universe
DESCRIPTION:The inference of the physical properties of galaxies at cosmological distance requires modeling a wide range of physics\, including e.g. stellar evolution and atmospheres\; dust attenuation and re-emission\; nebular physics\; and AGN emission. Bayesian inference is often used to map the inevitable degeneracies\, and the large amount of physics and wide parameter space means these codes are typically not fast. Yet current and near-future surveys of the universe will yield spectra for millions of galaxies and imaging for billions. I will discuss the tactics employed to speed up these codes\, ranging from neural net emulators of key physics (photoionization modeling\; stellar spectra) to efficient gradient enhanced GPU-accelerated high-dimensional sampling to rapid simulation-based inference. These yield speed-ups of somewhere between 100x and 100\,000x\, with unavoidable trade-offs in flexibility and accuracy. I will discuss applications of these techniques to model modern astronomical data\, including both industrial-scale modeling of galaxy SEDs and newly-possible directions such as spatially resolved galaxy modeling. Finally\, time permitting\, I will discuss some of the exciting new discoveries made with these techniques in the very distant universe seen by JWST.
UID:134609-21874582@events.umich.edu
URL:https://events.umich.edu/event/134609
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Science,Physics
LOCATION:West Hall - 340
CONTACT:
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BEGIN:VEVENT
DTSTAMP:20250325T192650
DTSTART;TZID=America/Detroit:20250421T153000
DTEND;TZID=America/Detroit:20250421T170000
SUMMARY:Workshop / Seminar:RCGD Seminar Series and Katz-Newcomb Colloquium Series: Mark Brandt
DESCRIPTION:Dr. Mark Brandt\, Associate Professor of Psychology at Michigan State University\, joins us at the University of Michigan April 21\, 2025\, for a talk co-sponsored by the Research Center for Group Dynamics and the Katz-Newcomb Colloquium Series.\n\nThe scientific study of attitudes typically treats attitudes individualistically. There are individual attitudes (e.g.\, preference for burritos) that vary in strength (e.g.\, central to the self)\, resistance to change (e.g.\, unwavering in the face of dietary information)\, and their relationship with relevant behaviors (e.g.\, purchasing of burritos). This approach misses a key property of attitudes: Attitudes are interdependent. \n\nIn this talk\, Brandt focuses on recent research from my lab that studies how attitudes are dependent on other attitudes\, identities\, and values within a political belief system. He presents the findings that (1) central attitudes of a political belief systems are stronger\, being more stable overtime and more resistant to change and (2) that attitudes become moralized when they are connected with other moralized attitudes in the belief system. In combination\, these findings suggest that the interdependence of attitudes matters for attitude change and moralization. \n\nThe goal of Mark Brandt's research is to understand the causes and consequences of political\, religious\, and moral beliefs that can ultimately be leveraged to reduce conflict and promote a more fair\, just\, and free society. He studies ideological and moral beliefs – such as political ideology\, racism\, religious fundamentalism\, and moral conviction – and how they structure attitudes and behaviors\, how they become moralized\, and why people adopt them in the first place.\n\nDavid Dunning\, organizer of the Katz-Newcomb speaker series in Psychology and an associate of the Research Center for Group Dynamics\, hosts. RCGD's winter 2025 seminar series covers a variety of topics in social science\, including social cognition\, structural racism\, romantic relationships\, and cognitive health. Check the schedule for updates to this series that will convene on select Mondays at 3:30 at the Institute for Social Research\, Room 1430\, and for listings to resume this fall.\n\nAs permissions allow\, seminars are later posted to the RCGD YouTube playlist.
UID:134351-21874244@events.umich.edu
URL:https://events.umich.edu/event/134351
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Social Sciences,Psychology,Politics
LOCATION:Institute For Social Research - 1430
CONTACT:
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BEGIN:VEVENT
DTSTAMP:20250417T065652
DTSTART;TZID=America/Detroit:20250421T160000
DTEND;TZID=America/Detroit:20250421T170000
SUMMARY:Workshop / Seminar:Complex Analysis\, Dynamics and Geometry Seminar: Disintegrating curve graphs
DESCRIPTION:Curve graphs are crucial tools for studying mapping class groups of surfaces. However\, many basic questions on their geometry remain open. In this talk\, we will shed light on the geometry of curve graphs by describing “filtrations” of them by hyperbolic graphs. These filtrations yield quasi-isometric disintegrations of curve graphs into trees. As a corollary\, we provide a new proof of finite asymptotic dimension of curve graphs. Finally\, we describe some useful aspects of the dynamics of the mapping class group actions on the graphs in the filtrations.
UID:134425-21874343@events.umich.edu
URL:https://events.umich.edu/event/134425
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 3096
CONTACT:
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