Seminars

Upcoming Seminars / Seminars This Week

Fri 4/17/15 11 amAbelson 333
Thesis Seminar (Graduate Program in Physics)
Keith Zengel (Blocker Group)
Search for a Heavy Neutral Particle Decaying Into e-mu, e-tau, or mu-tau Final States in pp Collisions at Sqrt(s) = 8 TeV with the ATLAS Detector

Fri 4/17/15 11:15 amAbelson 131
Biochemistry-Biophysics Friday Lunchtime Pizza Talks
Hiro Furukawa (Cold Spring Harbor)
Structure and Biology of NMDA receptor ion channel
Pizza Provided
Hosted by Prof. Miller

Fri 4/17/15 12:30 pmGerstenzang 123
Molecular and Cell Biology & Neuroscience Student Seminars
Narendra Mukherjee (Katz Lab)
David Waterman (Haber Lab)
Pizza Provided

Fri 4/17/15 3 pmVolen 201
Cognitive Neuroscience Journal Club
Lisa Payne (Sekuler Lab)
Distractibility in daily life is reflected in the structure and function of human parietal cortex

Fri 4/17/15 4 pmGerstenzang 121
Chemistry Department Colloquium
Michael Findlater (Texas Tech)
Sustainable Transformations using Earth Abundant Metals
Hosted by Casey Wade

Mon 4/20/15 11 amAbelson 307
String Theory Seminar
Tracy Slatyer (MIT)
GeV Gamma-Rays from the Central Milky Way and the Case for Annihilating Dark Matter
Hosted by Albion Lawrence

Mon 4/20/15 11 amVolen 201
Computational Neuroscience Journal Club
( )
No Journal Club due to Patriots Day Holiday

Mon 4/20/15 12 noonRosenstiel 118
Molecular Genetics Journal Club
( )
No Journal Club: Patriots Day

Mon 4/20/15 4 pmGerstenzang 121
Chemistry Department Colloquium
( )
No Colloquium: Patriots Day

Mon 4/20/15 4 pmAbelson 229
MRSEC Seminar
Silke Henkes (University of Aberdeen)
Active matter, curvature and confinement
Follow a flock of birds outside as it traces it way south over the sky. Now make it grow and grow, while at the same time the globe shrinks. What happens to the collective motion of the flock once it is confined to move on the surface of a sphere? We build the first particle simulation of active matter on the surface of a sphere.

For polar symmetry, instead of the aligned flocks of flat geometry, we find complex patterns at low driving, including defect dynamics and a folding band state. At higher driving, an equatorial travelling band forms, a direct consequence of Poincare's index theorem. For nematic symmetry, defects at low driving follow active elasticity theory and choose either tetrahedral or flat configurations.

Generally, in confinement, the driving leads to active elastic energy being stored in the local stress and displacement fields. Using an active elastic approach to the underlying soft solid, we show that polar particles oscillate along the lowest available energy modes; while the travelling band of the spherical system develops a stable active stress profile.

Hosted by Bulbul Chakraborty

Tue 4/21/15 12:30 pmGerstenzang 121
Neurobiology Journal Club
Michael Long (NYU)
How Does The Brain Generate Behavioral Sequences?
Hosted by Steve Van Hooser

Tue 4/21/15 2 pmGoldsmith 226
Topology Seminar
Emily Stark (Brandeis)
Commensurability and quasi-isometry classification of hyperbolic surface group amalgams

Tue 4/21/15 3:30 pmGoldsmith 226
Joint Topology and Everytopic Seminar
Steven Simon (Wellesley College)
Combinatorial geometry via finite harmonic analysis and equivariant topology

Tue 4/21/15 4 pmAbelson 131
Physics Department Colloquium
Klaus Schmidt-Rohr (Brandeis)
Dynamics and Nanostructure of Polymer Materials from NMR and Scattering Analysis
The properties of polymer materials, including ultradrawn fibers and fuel-cell membranes, are strongly affected by their nanometer scale structure and molecular motions. Since these systems exhibit a large degree of disorder, diffraction methods are of limited use, and advanced solid-state nuclear magnetic resonance (NMR) techniques, complemented by small-angle scattering analysis, can provide unique insights. Surprising large-amplitude motions of chains in crystallites of many polymers have been identified as thermally activated helical jumps, using two-dimensional exchange NMR. The concomitant displacements of the chains along their axes result in chain diffusion between crystalline and amorphous regions. This affects macroscopic properties such as creep and ultradrawability. -- In hydrated Nafion, a fluoropolymer that is the benchmark material for proton exchange membranes in H2/O2 fuel cells, we have investigated the long contentious nanometer-scale structure. 13C and 19F NMR results have highlighted the significant stiffness of the perfluorinated polymer backbone. Using an algorithm based on 3D numerical Fourier transformation that yields the scattered intensity I(q) for any model implemented on a cubic lattice, small-angle scattering data of hydrated Nafion from the literature have been quantitatively simulated. The characteristic "ionomer peak" is attributed to long, locally parallel but otherwise randomly packed water channels of ~2.4-nm diameter surrounded by the partially hydrophilic sidebranches, forming inverted-micelle cylinders. Simulations for a dozen other models of Nafion do not match the scattering data.  The water-channel model is the first without constrictions of ~1.2 nm diameter and can explain the fast diffusion of water and protons through Nafion.  
Hosted by Matthew Headrick

Wed 4/22/15 12 noonGoldsmith 226
Theory IGERT Seminar
Sho Yaida (Duke University)
Panoramic correlations in glassy systems
Hosted by Albion Lawrence

Wed 4/22/15 4 pmGerstenzang 121
Joint Biology/Neuroscience Colloquium
Joshua Trachtenberg '90 (UCLA)
Boredom, Arousal, and Neural Networks
Refreshments Served at 3:45pm
Hosted by Gina Turrigiano

Thu 4/23/15 12 noonShapiro Campus Center
Psychology Department Colloquium (NIGMS Brain, Body & Behavior, NIA Cognitive Aging in Social Context )
Anne Krendl (Indiana University)
Does cognitive decline predict older adults' bias toward out-groups?
The U.S. census estimates that older adults will constitute 20% of the overall U.S. population by 2030, whereas minority groups will comprise the majority of the U.S. population within a generation. This rapidly changing landscape may present unique challenges to older adults if they experience high levels of bias toward outgroup members, particularly as they become increasingly reliant on minority groups for services, health care, and long-term care. However, there is surprisingly little known about whether older adults have more bias toward outgroup members, and, if so, why that might be. I will present the results from behavioral and neuroimaging studies that demonstrate that older adults' cognitive capacity predicts their bias toward individuals who are stigmatized (e.g., due to their race, socioeconomic status, physical appearance). These studies demonstrate that older adults with relatively impaired cognitive capacity are less successful in regulating their bias toward stigmatized individuals as compared to older adults with relatively preserved cognitive capacity. Providing further insight into these results, I will also present findings that older adults with relatively impaired cognitive capacity hold stigmatized individuals more accountable for their conditions.
Last one of the Spring semester
Hosted by Angela Gutchess

Fri 4/24/15 11:15 amAbelson 131
Biochemistry-Biophysics Friday Lunchtime Pizza Talks
Biochemistry Dept., Undergrad Thesis Talks

Fri 4/24/15 12:30 pmGerstenzang 123
Molecular and Cell Biology & Neuroscience Student Seminars
Anna Kazatskaya (Sengupta Lab)
Zach Knecht (Garrity Lab)
*Last one of the Spring semester

Fri 4/24/15 4 pmShapiro Science Center Atrium
Special Biology Forum
( )
International Students in Biology Forum
Refreshments Served
Hosted by Sacha Nelson

Mon 4/27/15 11 amAbelson 307
String Theory Seminar
Masoud Soroush (Brandeis University)
TBA
Hosted by Prof. Matthew Headrick

Mon 4/27/15 12 noonRosenstiel 118
Molecular Genetics Journal Club
( )
Professional Development Seminar
Hosted by Genetics Training Grant

Mon 4/27/15 4 pmGerstenzang 121
Chemistry Department Colloquium
Dr. Alan Heyduk (University of California)
Redox-Active Ligands and Cofactors for Applications in Photo-Induced Charge Transfer and Electrochemical Hydrogen Production
Hosted by Christine Thomas

Tue 4/28/15 12:30 pm
Neurobiology Journal Club
( )
No Journal Club: Brandeis Friday

Tue 4/28/15 2 pmGoldsmith 226
Topology Seminar
Mike Shapiro (Brandeis)

Tue 4/28/15 4 pm
Physics Department Colloquium
( )
No Colloquium: Brandeis Friday
No Colloquium: Brandeis Friday

Thu 4/30/15 4:30 pmRapaporte Treasure Hall, Goldfarb Library
Special Seminar (Inaugural Lecture, Levitan Chair in Visual Sciences)
Gina Turrigiano (Brandeis University)
Self-tuning neurons and brain stability
Brains are the most complex machines in the known universe and undergo constant modifications to store information and adapt to a changing environment. How do such plastic mechanisms shape the output of brain circuits without compromising their stability and integrity? This lecture discusses emerging evidence that neurons and circuits within the central nervous system accomplish this remarkable feat through a set "homeostatic" plasticity mechanisms that allow neurons to sense how active they are and to adjust their properties to maintain stable firing.
Opening remarks by President Lawrence and Provost Lynch. Reception to follow.

Fri 5/1/15 11:15 amAbelson 131
Biochemistry-Biophysics Friday Lunchtime Pizza Talks
Corey Wilson (Yale)
Turning up the Heat on Rational Protein Design
Hosted by Prof. Kern

Tue 5/5/15 12:30 pmGerstenzang 121
Neurobiology Journal Club
Meredith Blankenship (Katz Lab)
Matthew Ranaghan (Oprian Lab)

Tue 5/5/15 2 pmGoldsmith 226
Topology Seminar
Biji Wong (Brandeis)

Wed 5/6/15 10:30 amBassine 251
Thesis Seminar (Graduate Program in Neuroscience)
Marissa Kuzirian (Paradis Lab)

Thu 5/7/15 4 pmAbelson 229
MRSEC Seminar
Wesley Wong (Children's Hospital Harvard )
TBA
Hosted by Seth Fraden

Fri 5/8/15 11:15 amAbelson 131
Biochemistry-Biophysics Friday Lunchtime Pizza Talks
Fourth Graduate Student Rotation Talks

Mon 5/11/15 9 amAbelson 131
Berko Symposium
Undergraduate and Graduate Presenters
Hosted by Prof. John Wardle

Tue 5/12/15 3:30 pmGerstenzang 121
Chemistry Department Colloquium
Dr. Jeffrey Moore (University of Illinois, Urbana)
Self-Healing Polymers
Hosted by Irving Epstein

Thu 5/14/15 4 pmAbelson 229
MRSEC Seminar
Jeff Morris (Department of Chemical Engineering at City College of New York)
TBA
Hosted by B. Chakraborty

Fri 5/15/15
Thesis Seminar (Graduate Program in Molecular and Cell Biology)
Sivanne Pearl-Waserman (Lovett Lab)

Fri 5/15/15 11:15 amAbelson 131
Biochemistry-Biophysics Friday Lunchtime Pizza Talks
No Seminar - Cancelled

Thu 5/21/15 11 amAbelson 131
Thesis Seminar (Graduate Program in Neuroscience)
Bethany Christmann (Griffith Lab)

 
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