Alabama invested in elementary math. But some schools have a long way to go

Alabama’s 2022 law reshaped math instruction at the elementary level by providing money for all schools to hire math coaches ...
C&EN

The 3.2 Å Resolution Structure of a Receptor:CheA:CheW Signaling Complex Defines Overlapping Binding Sites and Key Residue Interactions within Bacterial Chemosensory Arrays

† Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States ‡ Computer Science and Mathematics Division, Oak Ridge National Laboratory, Oak Ridge, ...
IEEE

Sparse Array 3-D ISAR Imaging Based on Maximum Likelihood Estimation and CLEAN Technique

Abstract: Large 2-D sparse array provides high angular resolution microwave images but artifacts are also induced by the high sidelobes of the beam pattern, thus, limiting its dynamic range. CLEAN ...
IEEE

Density-tapered spiral arrays for ultrasound 3-D imaging

Abstract: The current high interest in 3-D ultrasound imaging is pushing the development of 2-D probes with a challenging number of active elements. The most popular approach to limit this number is ...