Hiroshi Yamaguchi

TL;DR: In this paper , the authors investigated changes in the number of pediatric patients with acute gastroenteritis (AGE) after introducing universal RVVs in a primary emergency medical center in Japan, and they found that fewer children presented with RV-associated AGE (the reduction of proportion of the patients in 2022 was −61.7% (all ages), −57.9% (<1 years), −67.8% (1-<3 years), and − 61.4% (3 -5 years) compared to 2019).

TL;DR: In this article, the authors have fabricated micro-electromechanical parametric resonators based on the piezoelectricity in GaAs/AlGaAs modulation-doped heterostructures.

TL;DR: In this article, a parametric electromechanical resonator was fabricated using a GaAs/AlGaAs modulation-doped heterostructure and three on-chip operations actuation, detection and mechanical resonance frequency control were all demonstrated using piezoelectric based strain-voltage transduction.

TL;DR: In this article, in situ scanning electron microscopy observations made during molecular beam epitaxy of GaAs on (1 1 1)A substrates were quantitatively analyzed based on in situ growth processes and the time development of monomolecular high steps was clearly visible, and the step velocity as well as the nucleation density of 2D islands was measured directly from the images obtained under various growth conditions.

TL;DR: In this article , the authors proposed to use quadrature variables, where their parametric coupling enables skyrmions to be stabilized, and a finite-element simulation indicates that a stable acoustic skyrmmion would exist in a realistic structure consisting of a piezoelectric membrane array.