| Mon 11/19/18 12 noon | Gerstenzang 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 pm | Gerstenzang 121 |
| Chemistry Seminar |
| Olof Ramstrom (UMass Lowell) |
| Dynamic Chemistry for Synthesis, Catalysis and Beyond |
|
| Tue 11/20/18 11 am | Abelson 307 |
| String Theory Seminar |
|
| Tue 11/20/18 1 pm | Goldsmith 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 am | Volen 201 |
| Computational Neuroscience Journal Club |
| NO CNJC - THANKSGIVING |
|
| Thu 11/22/18 12 noon | Gerstenzang 121 |
| Molecular Genetics Journal Club |
| NO MGJC THANKSGIVING |
|
| Fri 11/23/18 12:30 pm | Gerstenzang 123 |
| Molecular and Cell Biology & Neuroscience Student Seminars |
| NO TALK - THANKSGIVING WEEK |
|
| Mon 11/26/18 12 noon | Gerstenzang 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 noon | Rosenstiel 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 am | Abelson 307 |
| String Theory Seminar |
| Nemanja Kaloper (UC Davis) |
| TBA |
|
| Tue 11/27/18 11 am | Gerstenzang 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 pm | Gerstenzang 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 pm | Goldsmith 300 |
| Combinatorics Seminar |
| Olivier Bernardi (Brandeis) |
| TBA |
| Hosted by Prof. Olivier Berndardi and Duncan Levear |
|
| Tue 11/27/18 2 pm | Goldsmith 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 pm | Abelson 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 pm | Gerstenzang 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 am | Abelson 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 am | Volen 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 noon | Gerstenzang 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 noon | Goldsmith 300 |
| Everytopic Seminar |
| Thomas Fai (Brandeis) |
| TBA |
| Hosted by Profs. Konstantin Matveev and Corey Bregman |
|
| Thu 11/29/18 12 noon | Goldsmith 300 |
| Everytopic Seminar |
| Thomas Fai (Brandeis) |
| TBA |
| Hosted by Profs. Konstantin Matveev and Corey Bregman |
|
| Thu 11/29/18 4 pm | Abelson 333 |
| Dark Universe Seminar |
| TBA |
| TBA |
| Hosted by Bjoern Penning |
|
| Thu 11/29/18 4 pm | Abelson 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 pm | Gerstenzang 123 |
| Molecular and Cell Biology & Neuroscience Student Seminars |
| Wenbo Tang (Jadhav Lab) |
| Lila Fakharzadeh (Dizio Lab) |
|
| Mon 12/3/18 12 noon | Gerstenzang 121 |
| Neurobiology Journal Club |
| Brian Lane (Turrigiano Lab) |
| TBA |
| Mark Zieliniski (Jadhav Lab) |
| TBA |
|
| Tue 12/4/18 11 am | Abelson 307 |
| String Theory Seminar |
| TBA |
| TBA |
|
| Tue 12/4/18 12:30 pm | Gerstenzang 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 pm | Abelson 131 |
| Physics Department Colloquium |
| TBA |
| TBA |
|
| Wed 12/5/18 1 pm | Shapiro 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 noon | Gerstenzang 121 |
| Molecular Genetics Journal Club |
| Brenda Lemos (Haber Lab) |
| TBA |
| Jena Harris (Kadener Lab) |
| TBA |
|
| Thu 12/6/18 12 noon | Goldsmith 300 |
| Everytopic Seminar |
| Daniel Glasscock (Northeastern University) |
| TBA |
| Hosted by Prof. Konstantin Matveev and Corey Bregman |
|
| Thu 12/6/18 4 pm | Abelson 229 |
| MRSEC Seminar |
| Nabuan Naufer (Northeastern University) |
| TBA |
| Hosted by John Berezney |
|
| Fri 12/7/18 12:30 pm | Gerstenzang 123 |
| Molecular and Cell Biology & Neuroscience Student Seminars |
| Ryan Youn (Jadhav Lab) |
| Andrea Stacy (Van Hooser Lab) |
|
| Fri 12/7/18 12:30 pm | Gerstenzang 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 pm | Gerstenzang 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 noon | Gerstenzang 121 |
| Neurobiology Journal Club |
| David Hampton (Marder Lab) |
| TBA |
| Roshan Nanu (Lisman/Katz/Jadhav Labs) |
| TBA |
| Ref: TBA |
|
| Tue 12/11/18 11 am | Abelson 307 |
| String Theory Seminar |
| TBA |
| TBA |
|
| Tue 12/11/18 12:30 pm | Gerstenzang 121 |
| M.R. Bauer Colloquium Series |
| Matt Shapiro (Mount Sinai Medical) |
| TBD |
| Hosted by Shantanu Jadhav |
|
| Tue 12/11/18 4 pm | Abelson 131 |
| Physics Department Colloquium |
| Gabe Redner (Google) |
| TBA |
|
| Wed 12/12/18 1 pm | Volen 201 |
| Safety Training |
| Andy Finn |
| Lab Safety Training |
|
| Fri 12/14/18 12:30 pm | Gerstenzang 123 |
| Molecular and Cell Biology & Neuroscience Student Seminars |
| NO PIZZA TALK - FINALS |
|
| Fri 12/21/18 12:30 pm | Gerstenzang 123 |
| Molecular and Cell Biology & Neuroscience Student Seminars |
| NO PIZZA TALKS - WINTER BREAK |
|
| Fri 12/28/18 12:30 pm | Gerstenzang 123 |
| Molecular and Cell Biology & Neuroscience Student Seminars |
| NO PIZZA TALKS - WINTER BREAK |
|
Science at Brandeis