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First Observation of P-odd γ Asymmetry in Polarized Neutron Capture on Hydrogen.
We report the first observation of the parity-violating gamma-ray asymmetry A_{γ}^{np} in neutron-proton capture using polarized cold neutrons incident on a liquid parahydrogen target at the
Status of the NPDGamma experiment
The NPDGamma experiment measures the parity-violating (PV) gamma asymmetry from polarized cold neutrons captured on protons at the Spallation Neutron Source (SNS) at Oak Ridge National Laboratory
Nonlinear Control in the Nematode C. elegans
TLDR
A global, nonlinear control model which is minimally parameterized and captures the state transitions described by Markov-switching models with a single dynamical system is proposed, providing an elegant characterization of control in the neuron population dynamics in C. elegans.
Unsupervised learning of control signals and their encodings in $\textit{C. elegans}$ whole-brain recordings
TLDR
The decomposition method allows one to understand the observed nonlinear global dynamics instead as linear dynamics with control, and can be generalized to other neurosensory systems, potentially revealing transitions and their encodings in a completely unsupervised way.
Unsupervised learning of control signals and their encodings in Caenorhabditis elegans whole-brain recordings
TLDR
A method to build a global, low-dimensional model of the dynamics, whereby an underlying global linear dynamical system is actuated by temporally sparse control signals which can be predicted both from neurons previously implicated in behavioural transitions but also additional neurons previously unassociated with these behaviours.
Characterizing and Optimizing Laser Beams for Optical Dipole Trapping and Evaporative Cooling of Ytterbium Atoms
Recent advances in technology have made it possible to cool atoms down to the Bose Einstein Condensate (BEC) level, specifically through laser trapping and cooling. The lasers used need to have a