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Mori Mori,Sadao Horino,Yuji Inomata,Hiroki Sasayama,Yuko Hirota 대한인간공학회 2007 대한인간공학회 학술대회논문집 Vol.- No.-
In Japan, Quarter-million crossing collisions at intersections accounted for one-fourth of the total accidents in 2005. Three-fourths of collisions took place at urban intersections, more than half of them occurred at uncontrolled intersections. Risks of crossing collisions depend on the quality of visual environment at intersection. This study aimed to assess the legibility and effectiveness of 23 traffic convex mirrors installed at 10 urban intersections, after the road management authority inspected and repaired. The legibility of mirror was assessed by means of the photographs of each mirror taken from the drivers’ viewpoint at a legal stop line, entering from the lower priority direction. “Three ergonomics requirements” suggested by the authors were used as the criteria of legibility assessment; (1) Position of road lane, (2) Blind area and (3) Road surface markings. Combining these 3 criteria, the comprehensive assessment of mirror was indicated in 2-grade scale, such as “Good” or “Poor”, namely so dangerous to be improved. A field assessment revealed that 11 among 23 mirrors were still improperly installed. However, simulation analysis showed that 7 among 11 poor mirrors could be improved by adjusting the angle of mirror plate or displacing mirror plate/poles. In conclusion, the present official guideline in regard with installing mirror should be revised to add newly “three ergonomics requirements” for preventive safety. Application of these new guidelines in practice, a typical low-cost and low technology-oriented improvement to reduce crossing collisions, was highly recommended.
Yuko Kato-Mori,Michiko Sato,Kenji Sera,Takenori Orihashi,Yuta Kanai,Katsuro Hagiwara 한국식품영양과학회 2010 Journal of medicinal food Vol.13 No.6
Lactobacillus gasseri OLL 2716 promotes the elimination of Helicobacter pylori and is utilized in yogurts that are specifically labeled as health foods. On the other hand, milk whey fermented by Propionibacterium freudenreichii ET-3, which increases the numbers of Bifidobacterium, is effective for intestinal disorders. We previously demonstrated that oral administration of L. gasseri and P. freudenreichii fermentation metabolites (LP-FM) improved calf intestinal microflora and reduced the incidence of diarrhea. However, the detailed immunological mechanisms responsible for these effects remain to be fully understood. In this study, we investigated whether LP-FM stimulates the innate immune response and promotes the elimination of Listeria monocytogenes in mice. The C57BL/6 female mice that were treated with LP-FM or L. gasseri fermentation metabolites alone for 4 weeks had more peripheral white blood cells than the untreated control mice. In particular, LP-FM-treated mice had higher CD4- and CD8-positive T-cell counts. The levels of reactive oxygen and nitrogen species produced by peritoneal macrophages were also higher in LP-FM-treated mice. Furthermore, LP-FM-treated mice that were infected with L. monocytogenes exhibited significant enhancement of the elimination of Listeria from the spleen and the liver in comparison with untreated control mice infected with Listeria. The activation of innate immunity by LP-FM was increased by the combination of fermentation metabolites from P. freudenreichii. These results suggest that LP-FM, which contains metabolites from L. gasseri and P. freudenreichii, stimulates the function of the innate immune system, thereby significantly promoting the elimination of L. monocytogenes in mice.
Coloration of Textile Care Symbols Applying Color Images
Masashi Kobayashi,Yuko Mori,Ikuko Okamoto 한국색채학회 2017 AIC 2017 Jeju Vol.2017 No.10
In this article, a proposal for coloration of textile care symbols is presented for rising the intelligibility of the meaning of symbols and rousing consumers’ interest in the care symbols and care labels. First, the questionnaire survey of the image of JIS safety colors (Red, Orange, Yellow, Green, Blue, White, and Black) was performed by using the ten adjective pairs, necessary to express the meaning of the symbols such as warm - cool, strong (action) - mild (action), with five-point scale. With reference to the results, the various colored symbols were designed by colorization of the additional or number parts of symbols, indicating temperature (numbers in washing symbols), mechanical action (under bar with washing symbols) and so on. Additionally, the symbols were indicated on the computer display as stimulus and evaluated by the method of ranking test. It was confirmed that there are meaning of the symbols easily expressed by color such as temperature, but difficultly expressed such as mildness of mechanical or chemical action.