Dynamic Synchronization between Hippocampal Spatial Representations and the Stepping Rhythm

Posted by klaurent UCSF

Kavli Affiliate: Loren Frank | Authors: Abhilasha Joshi, Eric L. Denovellis, Abhijith Mankili, Yagiz Meneksedag, Thomas Davidson, Anna K Gillespie, Jennifer Ann Guidera, Demetris Roumis and Loren M. Frank | Summary: The hippocampus is a vertebrate brain structure that expresses spatial representations1 and is critical for navigation2,3. Navigation in turn intricately depends on locomotion; however, […]


Continue.. Dynamic Synchronization between Hippocampal Spatial Representations and the Stepping Rhythm

Cyclic, condition-independent activity in primary motor cortex predicts corrective movement behavior

Posted by klaurent Hopkins

Kavli Affiliate: Sridevi Sarma | Authors: Adam G Rouse, Marc H Schieber and Sridevi V Sarma | Summary: Reaching movements are known to have large condition-independent neural activity and cyclic neural dynamics. A new precision center-out task was performed by rhesus macaques to test the hypothesis that cyclic, condition-independent neural activity in the primary motor […]


Continue.. Cyclic, condition-independent activity in primary motor cortex predicts corrective movement behavior

Reduced Dimension, Biophysical Neuron Models Constructed From Observed Data

Posted by klaurent UCSD / Salk

Kavli Affiliate: Henry Abarbanel | Authors: Randall E Clark, Lawson Fuller, Jason A Platt and Henry Abarbanel | Summary: Using methods from nonlinear dynamics and interpolation techniques from applied mathematics, we show how to use data alone to construct discrete time dynamical rules that forecast observed neuron properties. These data may come from from simulations […]


Continue.. Reduced Dimension, Biophysical Neuron Models Constructed From Observed Data

Spatially-Resolved Band Gap and Dielectric Function in 2D Materials from Electron Energy Loss Spectroscopy

Posted by klaurent Delft

Kavli Affiliate: Sonia Conesa-Boj | Summary:The electronic properties of two-dimensional (2D) materials depend sensitively on the underlying atomic arrangement down to the monolayer level. Here we present a novel strategy for the determination of the band gap and complex dielectric function in 2D materials achieving a spatial resolution down to a few nanometers. This approach […]


Continue.. Spatially-Resolved Band Gap and Dielectric Function in 2D Materials from Electron Energy Loss Spectroscopy

On The Design of a Light-weight FPGA Programming Framework for Graph Applications

Posted by klaurent Peking

Kavli Affiliate: Jing Wang | First 5 Authors: Jing Wang, Jinyang Guo, Chao Li, , | Summary: FPGA accelerators designed for graph processing are gaining popularity. Domain Specific Language (DSL) frameworks for graph processing can reduce the programming complexity and development cost of algorithm design. However, accelerator-specific development requires certain technical expertise and significant effort […]


Continue.. On The Design of a Light-weight FPGA Programming Framework for Graph Applications

History of Solar Neutrino Observations

Posted by klaurent Tokyo

Kavli Affiliate: Masayuki Nakahata | Summary:The first solar neutrino experiment led by Raymond Davis Jr. showed a deficit of neutrinos relative to the solar model prediction, referred to as the "solar neutrino problem" since the 1970s. The Kamiokande experiment led by Masatoshi Koshiba successfully observed solar neutrinos, as first reported in 1989. The observed flux […]


Continue.. History of Solar Neutrino Observations

Symmetric Mass Generation in the 1+1 Dimensional Chiral Fermion 3-4-5-0 Model

Posted by klaurent UCAS

Kavli Affiliate: Zheng Zhu | First 5 Authors: Meng Zeng, Zheng Zhu, Juven Wang, Yi-Zhuang You, | Summary: Lattice regularization of chiral fermions has been a long-standing problem in physics. In this work, we present the density matrix renormalization group (DMRG) simulation of the 3-4-5-0 model of (1+1)D chiral fermions with an anomaly-free chiral U(1) […]


Continue.. Symmetric Mass Generation in the 1+1 Dimensional Chiral Fermion 3-4-5-0 Model

Spectroscopy Signatures of Electron Correlations in a Trilayer Graphene/hBN Moiré Superlattice

Posted by klaurent Berkeley

Kavli Affiliate: Feng Wang | First 5 Authors: Jixiang Yang, Guorui Chen, Tianyi Han, Qihang Zhang, Ya-Hui Zhang | Summary: ABC-stacked trilayer graphene/hBN moir’e superlattice (TLG/hBN) has emerged as a playground for correlated electron physics. We report spectroscopy measurements of dual-gated TLG/hBN using Fourier transformed infrared photocurrent spectroscopy. We observed a strong optical transition between […]


Continue.. Spectroscopy Signatures of Electron Correlations in a Trilayer Graphene/hBN Moiré Superlattice

A Partition-and-Merge Algorithm for Solving the Steiner Tree Problem in Large Graphs

Posted by klaurent UCAS

Kavli Affiliate: Yi Zhou | First 5 Authors: Xinyu Wu, Yi Zhou, Jin-Kao Hao, Zhang-Hua Fu, | Summary: The Steiner tree problem, which asks for a minimum weighted tree spanning a given set of terminal vertices in a given graph, is a classic problem arising in numerous practical applications. Many algorithms about this problem emerged […]


Continue.. A Partition-and-Merge Algorithm for Solving the Steiner Tree Problem in Large Graphs