Publications by authors named "Hiromichi Yokoyama"
The heterogeneous reaction between copper(i) halide and pyridine derivative ligand in a suspension conveniently afforded luminescent copper(i) complexes. The progress of the reaction was confirmed by powder X-ray diffraction (PXRD) and thermogravimetric (TG) measurements. The structure of the obtained complexes was clarified by comparison with the X-ray analysis of a single crystal obtained by the homogeneous reaction in a solution.
View Article and Find Full Text PDFJapanese cedar pollinosis (JCP) is an important illness caused by the inhalation of airborne allergenic cedar pollens, which are dispersed in the early spring throughout the Japanese islands. However, associations between pollen exposures and the prevalence or severity of allergic symptoms are largely unknown, due to a lack of understanding regarding personal pollen exposures in relation to indoor and outdoor concentrations. This study aims to examine the relationships among indoor, outdoor, and personal airborne Japanese cedar pollen counts.
View Article and Find Full Text PDFPurpose: A questionnaire survey was conducted to examine a relationship between indefinite complaints and life styles in junior high school students and to apply the results to life guidance.
Methods: Twenty nine public junior high schools were selected by random sampling of 13 cities and 3 towns in Kanagawa Prefecture. A self-reported questionnaire was supplied to all subjects, containing 100 life-style related items, including a simplified CMI (Cornel Medical Index) questionnaire.
Article Synopsis
- This study examines how the MPEG-2 compression method affects coronary angiography images, focusing on finding a high compression ratio that doesn't significantly impact the accuracy of stenosis severity assessment.
- The research involved 44 digital cine angiographies, with three cardiologists evaluating both uncompressed and compressed images to compare results.
- Findings indicated that a compression ratio of 80:1 had a significantly lower agreement in accuracy compared to a 40:1 ratio, establishing a foundation for future research on how image compression affects observer performance in medical imaging.
Purpose: The purpose of this survey was to find factors affecting breakfast skip rates for male students participating in sports, and to determine how to improve their nutrition.
Methods: The survey was conducted on 86 male students (58 who played sports and 28 who did not). A questionnaire was supplied to all, containing questions concerning daily food eating behavior.