Publications by authors named "A S Tsukamoto"
Current-driven motion of magnetic domain walls is one of the key technologies for developing storage class memory devices. Extensive studies have revealed a variety of material systems that exhibit high-speed and/or lower power propagation of the domain walls driven by electric current. However, few studies have assessed the reliability of the operations of the memory technology.
View Article and Find Full Text PDFThree-dimensional (3D)-printed models of bones are a convenient and durable alternative to real bone specimens, and they have been used in anatomy laboratories. It is necessary to identify the precise advantages of 3D-printed models from all perspectives; not only the improvement in students' knowledge of anatomy but also the students' assessment of such models. Here, students of veterinary medicine and animal science evaluated the reproducibility and effectiveness of 3D-printed models as a learning tool by completing our questionnaires, with a focus on their understanding of the skull-morphological differences among dog breeds.
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- Left ventricular noncompaction (LVNC) is a poorly understood genetic heart condition categorized as an unclassified cardiomyopathy, largely due to the lack of standardized diagnostic criteria and proper animal models for study.
- This research focused on two Japanese macaques showing symptoms of LVNC and their parents, using various medical imaging and tests to analyze their heart conditions.
- Findings indicated that both affected macaques exhibited significant myocardial abnormalities typical of LVNC, suggesting that this species may be useful for studying the disease in a laboratory setting.
The historic Barnett effect describes how an inertial body with otherwise zero net magnetic moment acquires spontaneous magnetization when mechanically spinning. Breakthrough experiments have recently shown that an ultrashort laser pulse destroys the magnetization of an ordered ferromagnet within hundreds of femtoseconds, with the spins losing angular momentum to circularly polarized optical phonons as part of the ultrafast Einstein-de Haas effect. However, the prospect of using such high-frequency vibrations of the lattice to reciprocally switch magnetization in a nearby magnetic medium has not yet been experimentally explored.
View Article and Find Full Text PDFIntroduction: In the context of collective efforts taken in Japan to control the spread of COVID-19, the state of emergency and social distancing have caused a negative impact on the mental health of all residents, including foreign communities in Japan. This study aimed to evaluate the level of anxiety and its associated factors among non-Japanese residents residing in Japan during the COVID-19 pandemic.
Methods: A web-based survey in 13 languages was conducted among non-Japanese residents living in Japan during the COVID-19 situation.