Tootfinder

This https://arxiv.org/abs/2505.21864 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csRO_…

DexUMI: Using Human Hand as the Universal Manipulation Interface for Dexterous Manipulation
We present DexUMI - a data collection and policy learning framework that uses the human hand as the natural interface to transfer dexterous manipulation skills to various robot hands. DexUMI includes hardware and software adaptations to minimize the embodiment gap between the human hand and various robot hands. The hardware adaptation bridges the kinematics gap using a wearable hand exoskeleton. It allows direct haptic feedback in manipulation data collection and adapts human motion to feasible…

Cowboys rookie is unlikely to achieve this franchise feat https://insidethestar.com/cowboys-rookie-is-unlikely-to-achieve-this-franchise-feat

Anyway here's a California poppy, Eschscholzia californica, at the Antelope Valley California Poppy Preserve earlier this spring
#naturalist

This https://arxiv.org/abs/2501.05440 has been replaced.
initial toot: https://mastoxiv.page/@ar…

Enabling GPU Portability into the Numba-JITed Monte Carlo Particle Transport Code MC/DC
The Center for Exascale Monte Carlo Neutron Transport is developing Monte Carlo / Dynamic Code (MC/DC) as a portable Monte Carlo neutron transport package for rapid numerical methods exploration on CPU- and GPU-based high-performance computers. In this paper, we describe MC/DC's current event-based GPU algorithm as well as the just-in-time (JIT) compilation scheme we use to enable GPU operability on Nvidia and AMD GPUs from MC/DC's Python source. To analyze performance, we conduct runtime tests…

Predicting protein folding dynamics using sequence information
Ezequiel A. Galpern, Federico Caama\~no, Diego U. Ferreiro
https://arxiv.org/abs/2505.17237 …

Predicting protein folding dynamics using sequence information
Natural protein sequences somehow encode the structural forms that these molecules adopt. Recent developments in structure-prediction are agnostic to the mechanisms by which proteins fold and represent them as static objects. However, the amino acid sequences also encode information about how the folding process can happen, and how variations in the sequences impact on the populations of the distinct structural forms that proteins acquire. Here we present a method to infer protein folding dynam…

Measuring optical force with a torsion pendulum: a platform for independent student experimentation
Leland Russell (Dept. of Physics, Reed College, Portland OR USA), Ezekiel A. Rein (Dept. of Physics, Reed College, Portland OR USA), Anatalya Piatigorsky (Dept. of Physics, Reed College, Portland OR USA), Jennifer T. Heath (Dept. of Physics, Reed College, Portland OR USA)

Measuring optical force with a torsion pendulum: a platform for independent student experimentation
In this work, the force due to radiation pressure is measured with sub-10 pN sensitivity, corresponding to less than 2 mW of optical power. The apparatus adds homemade reflectors to a commercial Cavendish balance, which consists of a torsion pendulum with a built-in capacitance position sensor. When driven by four 5 mW laser diodes, with square-wave modulation at the pendulum's natural frequency, the response is strong enough to easily discern in a short time series. The discrete Fourier transf…