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- 저자 : Hiroaki Mimura (검색결과 2 건)
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Mayumi Mimura,Sachiko Kitano,Katsunobu Yoshitomi,Hiroaki 환태평양유아교육연구학회 2009 Asia-Pacific journal of research in early childhoo Vol.3 No.1
The vocal pitch matching ability is one of the most important abilities in music education. This study focuses on children’s development of the vocal pitch matching ability. Children of 4- and 5-year-olds in two kindergartens, and one class of the first 3 grades of the elementary school listened to musical tones and were asked to reproduce by singing what they had heard. The types of musical inputs were (1) piano sounds; (2) female singing voice sounds; and (3) chants with female singing voice sounds. As for the results, (3) input led to the best answer and the second best was (2). It was easier for children to match the pitch with voice sounds inputs with meaning. Children’s pitch matching ability was higher in the kindergarten offering music activities intentionally. From the study, the importance of developing a system- atic music transition program for children to improve their music ability is suggested.
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Eiji Toyota,Teruki Sone,Kunihiko Yoshikawa,Hiroaki Mimura,Akihiro Hayashida,Nozomi Wada,Kikuko Obase,Koichiro Imai,Ken Saito,Tomoko Maehama,Masao Fukunaga,Kiyoshi Yoshida 연세대학교의과대학 2010 Yonsei medical journal Vol.51 No.2
Purpose: In cardiac 2-[F-18]fluoro-2-deoxy-D-glucose (FDG)-positron emission tomography (PET) examination,interpretation of myocardial viability in the low uptake region (LUR) has been difficult without additional perfusion imaging. We evaluated distribution patterns of FDG at the border zone of the LUR in the cardiac FDG-PET and established a novel parameter for diagnosing myocardial viability and for discriminating the LUR of normal variants. Materials and Methods: Cardiac FDG-PET was performed in patients with a myocardial ischemic event (n = 22) and in healthy volunteers (n = 22). Whether the myocardium was not a viable myocardium (not-VM) or an ischemic but viable myocardium (isch-VM) was defined by an echocardiogram under a low dose of dobutamine infusion as the gold standard. FDG images were displayed as gray scaled-bull’s eye mappings. FDG-plot profiles for LUR (= true ischemic region in the patients or normal variant region in healthy subjects) were calculated. Maximal values of FDG change at the LUR border zone (a steepness index; Smax scale/pixel) were compared among not-VM, isch-VM, and normal myocardium. Results: Smax was significantly higher for n-VM compared to those with isch-VM or normal myocardium (ANOVA). A cut-off value of 0.30 in Smax demonstrated 100% sensitivity and 83% specificity for diagnosing n-VM and isch-VM. Smax less than 0.23 discriminated LUR in normal myocardium from the LUR in patients with both n-VM and isch-VM with a 94% sensitivity and a 93% specificity. Conclusion: Smax of the LUR in cardiac FDG-PET is a simple and useful parameter to diagnose n-VM and isch-VM, as well as to discriminate thr LUR of normal variants.
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