Seminars

Upcoming Seminars / Seminars This Week

Mon 11/19/18 12 noonGerstenzang 121
Neurobiology Journal Club
Justin Shin (Jadhav Lab)
A mesocortical dopamine circuit enables the cultural transmission of vocal behaviour
Daniel Powell (Marder Lab)
Distinct co-modulation rules of synapses and voltage-gated currents coordinate interactions of multiple neuromodulators

Mon 11/19/18 3:40 pmGerstenzang 121
Chemistry Seminar
Olof Ramstrom (UMass Lowell)
Dynamic Chemistry for Synthesis, Catalysis and Beyond

Tue 11/20/18 11 amAbelson 307
String Theory Seminar

Tue 11/20/18 1 pmGoldsmith 300
Combinatorics Seminar
Duncan Levear (Brandeis University)
A Bijection for Shi arrangement faces
A collection of hyperplanes induces a cell structure on n-dimensional space. We consider the combinatorial question of counting the number of cells of each dimension. There is a rich history behind counting the highest-dimensional cells (called the regions), but the lower-dimensional faces have received less attention. In this talk, we will survey the combinatorics of hyperplane arrangements, and describe our recent work, which places the faces of the Shi arrangement in explicit correspondence with a set of decorated binary trees. Furthermore, we show that the set of binary trees can be viewed as a set of rooted Cayley forests, or as certain integers sequences known as Prufer Codes. Our bijection is a generalization of a bijection for regions defined by Bernardi in 2015.
Hosted by Prof. Olivier Bernardi

Thu 11/22/18 11 amVolen 201
Computational Neuroscience Journal Club
NO CNJC - THANKSGIVING

Thu 11/22/18 12 noonGerstenzang 121
Molecular Genetics Journal Club
NO MGJC THANKSGIVING

Fri 11/23/18 12:30 pmGerstenzang 123
Molecular and Cell Biology & Neuroscience Student Seminars
NO TALK - THANKSGIVING WEEK

Mon 11/26/18 12 noonGerstenzang 121
Neurobiology Journal Club
Alejandro Torrado Pacheco (Turrigiano Lab)
Nucleus Accumbens Subnuclei Regulate Motivated Behavior via Direct Inhibition and Disinhibition of VTA Dopamine Subpopulations
Dingbang Ma (Rosbash Lab)
Morning and Evening Circadian Pacemakers Independently Drive Premotor Centers via a Specific Dopamine Relay

Mon 11/26/18 12 noonRosenstiel 118
Thesis Seminar (Graduate Program in Molecular and Cell Biology)
ShiYu Wang (Rodal Lab)
Regulation of Membrane Traffic by Sorting Nexin 16

Tue 11/27/18 11 amAbelson 307
String Theory Seminar
Nemanja Kaloper (UC Davis)
TBA

Tue 11/27/18 11 amGerstenzang 122
Thesis Seminar (Graduate Program in Neuroscience)
Meredith Blankenship (Katz Lab)
Olfactory sub-systems determine the neural processing, flexibility and function of odor learning

Tue 11/27/18 12:30 pmGerstenzang 121
Joint Biology/Neuroscience Colloquium
Phil Zamore (UMASS MedicalHoward; Hughes Medical Institute )
piRNAs and the Struggle to Reproduce
Hosted by Sebastian Kadener

Tue 11/27/18 1 pmGoldsmith 300
Combinatorics Seminar
Olivier Bernardi (Brandeis)
TBA
Hosted by Prof. Olivier Berndardi and Duncan Levear

Tue 11/27/18 2 pmGoldsmith 317
Topology Seminar
Min Hoon Kim (Korea Institute for Advanced Study)
A family of freely slice good boundary links
The still open topological surgery conjecture for 4-manifolds is equivalent to the statement that all good boundary links are freely slice. In this talk, I will show that every good boundary link with a pair of derivative links on a Seifert surface satisfying a homotopically trivial plus assumption is freely slice. This subsumes all previously known methods for freely slicing good boundary links with two or more components, and provides new freely slice links. This is joint work with Jae Choon Cha and Mark Powell.
Hosted by Profs. Daniel Ruberman and Ruth Charney

Tue 11/27/18 4 pmAbelson 131
Physics Department Colloquium
John Wilmes (Brandeis University)
Neural Networks and Statistical Query Algorithms
In joint work with Santosh Vempala, we study the complexity of training neural network models with one hidden nonlinear activation layer and an output weighted sum layer. We obtain essentially matching upper and lower bounds. We begin with the observation that the concepts computed by simple neural networks are well-approximated by low-degree polynomials when inputs are drawn uniformly from the sphere, so regression problems for data labelled by an unknown neural network can be captured by agnostic polynomial learning. We give an agnostic learning guarantee for training neural networks via gradient descent, establishing convergence within error ϵ​​ of the optimum when the number of gates, samples, and iterations are all bounded by n^[O(k)]log(1/ε)​​ for concepts approximated by degree-k​​ polynomials. On the other hand, any statistical query algorithm (including gradient descent in its many variations) requires n^[Ω(k)]​​ queries for the same problem.

Wed 11/28/18 12 noon
Mathematical Biology Journal Club
Bolun Chen (Brandeis)
TBA
Hosted by Professors Jonathan Touboul and Thomas Fai and Dr. Denis Patterson

Wed 11/28/18 2 pmGerstenzang 124
Thesis Seminar (Graduate Program in Neuroscience)
Sarah Richards (Van Hooser Lab)
The Small GTPase Rem2 Regulates Circuit Development in Mouse Visual Cortex

Thu 11/29/18 11 amAbelson 333
Thesis Seminar
Joia Miller (Dogic Lab)
Rafts in Colloidal Membranes: The Role of Rod Chirality and Length in Monolayer Phase Separation

Thu 11/29/18 11 amVolen 201
Computational Neuroscience Journal Club
Alejandro Torrado Pacheco (Turrigiano Lab)
Coherent encoding of subjective spatial position in visual cortex and hippocampus
Pizza provided following the talk.

Thu 11/29/18 12 noonGerstenzang 121
Molecular Genetics Journal Club
Rebecca Fenn (Lee Lab)
Michela Zaffagni (Kadener Lab)
m6A facilitates hippocampus-dependent learning and memory through YTHDF1

Thu 11/29/18 12 noonGoldsmith 300
Everytopic Seminar
Thomas Fai (Brandeis)
TBA
Hosted by Profs. Konstantin Matveev and Corey Bregman

Thu 11/29/18 12 noonGoldsmith 300
Everytopic Seminar
Thomas Fai (Brandeis)
TBA
Hosted by Profs. Konstantin Matveev and Corey Bregman

Thu 11/29/18 4 pmAbelson 333
Dark Universe Seminar
TBA
TBA
Hosted by Bjoern Penning

Thu 11/29/18 4 pmAbelson 229
MRSEC Seminar
Philip Pearce (MIT)
Physical determinants of bacterial biofilm architectures
In many situations bacteria aggregate to form biofilms: dense, surface-associated, three-dimensional structures populated by cells embedded in matrix. Biofilm architectures are sculpted by mechanical processes including cell growth, cell-cell interactions and external forces. Using single-cell live imaging in combination with simulations we characterize the cell-cell interactions that generate Vibrio cholerae biofilm morphologies. Fluid shear is shown to affect biofilm shape through the growth rate and orientation of cells, despite spatial differences in shear stress being balanced by cell-cell adhesion. Our results demonstrate the importance of cell dynamics mediated by adhesion proteins and matrix generation in determining the global architecture of biofilm structures.
Hosted by John Berezney

Fri 11/30/18 12:30 pmGerstenzang 123
Molecular and Cell Biology & Neuroscience Student Seminars
Wenbo Tang (Jadhav Lab)
Lila Fakharzadeh (Dizio Lab)

Mon 12/3/18 12 noonGerstenzang 121
Neurobiology Journal Club
Brian Lane (Turrigiano Lab)
TBA
Mark Zieliniski (Jadhav Lab)
TBA

Tue 12/4/18 11 amAbelson 307
String Theory Seminar
TBA
TBA

Tue 12/4/18 12:30 pmGerstenzang 121
Joint Biology/Neuroscience Colloquium
Rebecca Shansky (Northeastern )
Sex differences in conditioned fear responses: circuit or situation
Hosted by Katie Kimbrell

Tue 12/4/18 4 pmAbelson 131
Physics Department Colloquium
TBA
TBA

Wed 12/5/18 1 pmShapiro Science Center, LL16
Thesis Seminar (Graduate Program in Chemistry)
Leiming Tian (Krauss Lab)
Synthesis of Optically Active Homocrotylation Reagents and E/Z-Selective Homocrotylation of Aldehydes

Thu 12/6/18 12 noonGerstenzang 121
Molecular Genetics Journal Club
Brenda Lemos (Haber Lab)
TBA
Jena Harris (Kadener Lab)
TBA

Thu 12/6/18 12 noonGoldsmith 300
Everytopic Seminar
Daniel Glasscock (Northeastern University)
TBA
Hosted by Prof. Konstantin Matveev and Corey Bregman

Thu 12/6/18 4 pmAbelson 229
MRSEC Seminar
Nabuan Naufer (Northeastern University)
TBA
Hosted by John Berezney

Fri 12/7/18 12:30 pmGerstenzang 123
Molecular and Cell Biology & Neuroscience Student Seminars
Ryan Youn (Jadhav Lab)
Andrea Stacy (Van Hooser Lab)

Fri 12/7/18 12:30 pmGerstenzang 121
Thesis Seminar (Graduate Program in Chemistry)
Kathryn Gramigna (Thomas)
Development of Phosphinoamide-supported Homo- and Heterobimetallic Complexes Featuring Metal-Metal Bonds Towards Cooperative Small Molecule Activation

Fri 12/7/18 12:30 pmGerstenzang 121
Thesis Seminar (Graduate Program in Chemistry)
Kathryn Gramigna (Thomas Lab)
Development of Phosphinoamide-supported Homo- and Heterobimetallic Complexes Featuring Metal-Metal Bonds Towards Cooperative Small Molecule Activation

Mon 12/10/18 12 noonGerstenzang 121
Neurobiology Journal Club
David Hampton (Marder Lab)
TBA
Roshan Nanu (Lisman/Katz/Jadhav Labs)
TBA
Ref: TBA

Tue 12/11/18 11 amAbelson 307
String Theory Seminar
TBA
TBA

Tue 12/11/18 12:30 pmGerstenzang 121
M.R. Bauer Colloquium Series
Matt Shapiro (Mount Sinai Medical)
TBD
Hosted by Shantanu Jadhav

Tue 12/11/18 4 pmAbelson 131
Physics Department Colloquium
Gabe Redner (Google)
TBA

Wed 12/12/18 1 pmVolen 201
Safety Training
Andy Finn
Lab Safety Training

Fri 12/14/18 12:30 pmGerstenzang 123
Molecular and Cell Biology & Neuroscience Student Seminars
NO PIZZA TALK - FINALS

Fri 12/21/18 12:30 pmGerstenzang 123
Molecular and Cell Biology & Neuroscience Student Seminars
NO PIZZA TALKS - WINTER BREAK

Fri 12/28/18 12:30 pmGerstenzang 123
Molecular and Cell Biology & Neuroscience Student Seminars
NO PIZZA TALKS - WINTER BREAK

 
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