Events Archive

Biophysics Seminar

Cancelled. To Be Rescheduled. Biophysics Seminar: Stephanie Palmer, University of Chicago: How behavioral and evolutionary constraints sculpt early visual processing|Joseph Henry Room

Mon, Feb 17, 2020, 12:00 pm

While efficient coding has been a successful organizational principle in visual neuroscience, to make a more general theory behavioral, mechanistic, and even evolutionary constraints need to be added to this framework.

Audience: A free lecture open to the public.
Speaker(s):

Biophysics Seminar: Elizabeth Jerison, Stanford University: Dynamics of adaptive immunity in zebrafish| Joseph Henry Room

Mon, Feb 10, 2020, 12:00 pm

The immune responses that defend us against pathogens are driven by stochastic processes amongst populations of cells. Enormous progress in immunology over the last few decades has identified most of the components of this complex system, including the cell types and the molecules used for communication.

Audience: A free lecture open to the public.
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Biophysics Seminar: Sven van Teeffelen, Department of Microbiology, Institut Pasteur, Paris, France: Control of cell volume in rod-shaped bacteria|Joseph Henry Room

Mon, Feb 3, 2020, 12:00 pm

Bacteria exhibit a high degree of intracellular macromolecular crowding. To control the level of crowding cells must increase their volumes in response to the accumulation of biomass during growth. This coordination is fundamentally not understood in any cell type.

Audience: A free lecture open to the public.
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Biophysics Seminar: Dmitry Rinberg, Neuroscience Institute, NYU Langone Health: Cracking the olfactory code using behavior| Joseph Henry Room

Mon, Jan 27, 2020, 12:00 pm

Two of the most fundamental questions of sensory neuroscience are: 1) how is stimulus information represented by neuronal activity? and 2) what features of this activity are read out to guide behavior? The first question has been the subject of a large body of work across different sensory modalities.

Audience: A free lecture open to the public.
Speaker(s):

Biophysics Seminar: Navish Wadhwa, Harvard University:Environmentally regulated self-assembly of the bacterial flagellar motor| Joseph Henry Room

Mon, Dec 16, 2019, 12:00 pm

Macromolecular protein complexes perform essential biological functions across life forms. The assembly of such complexes is known to be regulated at the level of gene transcription, but little is known about the factors that control their assembly once the mature protein subunits enter their target space (cytoplasm, membrane, or cell wall).

Audience: A free lecture open to the public.
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Biophysics Seminar: Hana El-Samad, The University of California, San Francisco: Biological Feedback Control| Joseph Henry Room

Mon, Dec 9, 2019, 12:00 pm

Organisms are an evolutionary masterpiece of feedback control, featuring a mind-boggling capacity to self-correct. In this talk, we discuss our attempts to both understand feedback control in cells and to forward engineer it with de novo designed proteins.

Audience: A free lecture open to the public.
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Biophysics Seminar: Damon Clark, Yale University: Mechanisms underlying visual illusions in flies| Joseph Henry Room

Mon, Dec 2, 2019, 12:00 pm

Visual systems detect many features of natural scenes, including motion. Motion detection guides critical behaviors like hunting, evading predators, and finding mates. It can be framed as an inference problem, in which light intensity measurements are combined to estimate a latent variable of image velocity.

Audience: A free lecture open to the public.
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Biophysics Seminar: Melike Lakadamyali, UPENN: Super-resolution imaging of chromatin structure and dynamics|Joseph Henry Room

Mon, Nov 25, 2019, 12:00 pm

Audience: A free lecture open to the public.
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Biophysics Seminar: Marija Zanic, Vanderbilt University: Dynamic Architecture of the Microtubule Cytoskeleton| Joseph Henry Room

Mon, Nov 18, 2019, 12:00 pm

Microtubules are active biological polymers known to stochastically switch between phases of growth and shrinkage, a behavior termed ‘dynamic instability’. Microtubule treadmilling, in which the microtubule plus end grows while the minus end shrinks, is also observed in cells.

Audience: A free lecture open to the public.
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Biophysics Seminar: Paul Francois, McGill University: Geometric model in latent space for fly development|Joseph Henry Room

Mon, Nov 11, 2019, 12:00 pm

Audience: A free lecture open to the public.
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Biophysics Seminar: Ashley Carter, Amherst College: DNA Folding in Sperm|Joseph Henry Room

Mon, Nov 4, 2019, 12:00 pm

DNA Folding in Sperm

Audience: A free lecture open to the public.
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Biophysics Seminar: Aleksandra Walczak, École Normale Supérieure de Paris: Response in immune repertories|Joseph Henry Room

Mon, Oct 21, 2019, 12:00 pm

Response in immune repertories

Audience: A free lecture open to the public.
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Biophysics Seminar: John Marko, Mechanics, geometry and topology of cell nuclei and metaphase chromosomes|Joseph Henry Room

Mon, Oct 14, 2019, 12:00 pm

Mechanics, geometry and topology of cell nuclei and metaphase chromosomes

Audience: A free lecture open to the public.
Speaker(s):

Biophysics Seminar: Andrew Mugler, Purdue University: Physics of collective cell sensing|Joseph Henry Room

Mon, Sep 30, 2019, 12:00 pm

Physics of collective cell sensing

Audience: A free lecture open to the public.
Speaker(s):

Biophysics Seminar: Zaida Luthey-Schulten, University of Illinois at Urbana-Champaign: Modeling the minimal cell: Integration of experiments, theory, and simulations|Joseph Henry Room

Mon, Sep 23, 2019, 12:00 pm

Modeling the minimal cell: Integration of experiments, theory, and simulations

Audience: A free lecture open to the public.
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Biophysics Seminar: Bill Bialek & Josh Shaevitz: State of the Center|Joseph Henry Room

Mon, Sep 16, 2019, 12:00 pm
Audience: A free lecture open to the public.
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Biophysics Seminar Series: Jaume Casademunt, University of Barcelona: Hydrodynamics of epithelia: waves, wetting, and fingering| PCTS Seminar room, Jadwin 407

Fri, Jun 14, 2019, 12:30 am

Collective migration of cohesive groups of cells is a hallmark of the tissue remodeling events that underlie embryonic morphogenesis, wound repair and cancer invasion. In this collective migration, supra-cellular properties such as collective polarization or force generation emerge and eventually control large- scale...

Audience: A free lecture open to the public.
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Biophysics Seminar: Markus Meister, California Institute of Technology| "Large Ratios in Brain Science "| Joseph Henry Room

Mon, Apr 15, 2019, 12:00 pm

In physics and engineering dimensionless numbers frequently help to characterize the state of a system. I will present a series of vignettes about unusually large dimensionless numbers that arise in brain science. These can indicate issues that are poorly understood, and in some cases clearly misunderstood.

Audience: A free lecture open to the public.
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Biophysics Seminar: Massimo Vergassola, University of California San Diego| "Waves and flows in the early embryogenesis of Drosophila melanogaster"| Joseph Henry Room

Mon, Apr 8, 2019, 12:00 pm

Early embryogenesis of most metazoans is characterized by rapid and synchronous cleavage divisions. After fertilization, Drosophila embryos undergo 13 swift rounds of DNA replication and mitosis without cytokinesis, resulting in a multinucleated syncytium containing about 6,000 nuclei.

Audience: A free lecture open to the public.
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Biophysics Seminar: Elizabeth Hillman, Columbia University| "High-speed imaging of real-time brain activity"| Joseph Henry Room

Mon, Apr 1, 2019, 12:00 pm

Optical reporters of neural activity have improved dramatically over the past decade. Recent developments in optical imaging approaches have unlocked the power of these indicators and can now provide real-time read-outs from large populations of brain cells in a wide range of living organisms.

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