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Elasticity of the quadriceps femoris muscle during stretching at different pelvic tilt positions
( Yoshinori Kimura ),( Maki Koyanagi ),( Daichi Yamada ),( Shuhei Tada ),( Yumiko Satoda ),( Sayaka Kondo ),( Ryosuke Fukumura ),( Natsumi Seto ),( Yasuhiro Mitani ),( Naruhiko Nakae ),( Takuji Sugimo 대한운동사협회 2017 대한운동사협회 운동사대회자료집 Vol.2017 No.-
Analysison Pedestrian Out flow through an Exit with an Obstacle
Daichi Yanagisawa,Ayako Kimura,Akiyasu Tomoeda,Ryosuke Nishi,Yushi Suma,Kazumichi Ohtsuka,Katsuhiro Nishinari 제어로봇시스템학회 2009 제어로봇시스템학회 국제학술대회 논문집 Vol.2009 No.8
We have found that putting an obstacle in front of an exitin creases the pedestrian out flow through an exitinane vacuation situation from our experimets. In this paper, conflicts and turning, which affects the pedestrian out-flow significantly, is studied in detail to analyze the effect of an obstacle. In the floor field model, which is apedestri and ynamics modelu sing cellularauto mata, conflicts are taken in to account by the frictional parameter, which is not suffi-ciently realistic, and turning is neglected. Therefore, we have improved the frictional parameter to the frictional function, which is more realistic than the frictional parameter, and introduced the turning function, which represents the decrease in walking speeds when pedestrians turn. The frictional and the turning function clearly explain the mechanism of the effect of the obstacle, i.e., the obstacle blocks apedestrian moving to the exitand decreases the average number of pedestrians involved in the conflict.
SUZUKI, Toshiyuki,SAKUMOTO, Ryosuke,HAYASHI, Ken-Go,OGISO, Takatoshi,KUNII, Hiroki,SHIROZU, Takahiro,KIM, Sung-Woo,BAI, Hanako,KAWAHARA, Manabu,KIMURA, Koji,TAKAHASHI, Masashi 家畜繁殖硏究所 2018 Journal of Reproduction and Development Vol.64 No.6
<P>Interferon-tau (IFNT), a type I interferon (IFN), is known as pregnancy recognition signaling molecule secreted from the ruminant conceptus during the preimplantation period. Type I IFNs, such as IFN-alpha and IFN-beta, are known to activate cell-death pathways as well as induce apoptosis. In cows, induction of apoptosis with DNA fragmentation is induced by IFNT in cultured bovine endometrial epithelial cells. However, the status of cell-death pathways in the bovine endometrium during the preimplantation period still remains unclear. In the present study, we investigated the different cell-death pathways, including apoptosis, pyroptosis, and autophagy, in uterine tissue obtained from pregnant cows and <I>in vitro</I> cultured endometrial epithelial cells with IFNT stimulation. The expression of <I>CASP7</I>, <I>8,</I> and <I>FADD</I> (apoptosis-related genes) was significantly higher in pregnant day 18 uterine tissue in comparison to non-pregnant day 18 tissue. The expression of <I>CASP4</I>, <I>11,</I> and <I>NLRP3</I> (pyroptosis-related genes) was significantly higher in the pregnant uterus in comparison to non-pregnant uterus. In contrast, autophagy-related genes were not affected by pregnancy. We also investigated the effect of IFNT on the expression of cell-death pathway-related genes, as well as DNA fragmentation in cultured endometrial epithelial cells. Similar to its effects in pregnant uterine tissue, IFNT affected the increase of apoptosis-related (<I>CASP8</I>) and pyroptosis-related genes (<I>CASP11</I>), but did not affect autophagy-related gene expression. IFNT also increased γH2AX-positive cells, which is a marker of DNA fragmentation. These results suggest that apoptosis- and pyroptosis-related genes are induced by IFNT in the pregnant bovine endometrial epithelial cells.</P>
Characterization of crystalline linear (1→3)-α-<small>D</small>-glucan synthesized <i>in vitro</i>
Kobayashi, Kayoko,Hasegawa, Takuto,Kusumi, Ryosuke,Kimura, Satoshi,Yoshida, Makoto,Sugiyama, Junji,Wada, Masahisa Applied Science Publishers 2017 Carbohydrate polymers Vol.177 No.-
<P><B>Abstract</B></P> <P>We investigated the crystal structure and molecular arrangement of the linear (1→3)-α-<SMALL>D</SMALL>-glucan synthesized by glucosyltransferase GtfJ cloned from <I>Streptococcus salivarius</I> using sucrose as a substrate. The synthetic products had two morphologies: wavy fibril-like crystals as major and thin lamellae as minor products. Their structures were analyzed using electron microdiffraction, synchrotron X-ray powder diffraction, and solid-state <SUP>13</SUP>C NMR spectroscopy. The fibrils and lamellae had the same allomorphic form but different molecular arrangements. The wet crystals were in a hydrated form, which converted into an anhydrous form with a significant decrease in crystallinity on drying. The hydrated and anhydrous forms had an extended-chain conformation with 2/1 helix, and the hydrated form was estimated to contain one water molecule per glucose residue. The long glucan chains were folded in the fibril crystals, while the short, extended chains were arranged perpendicular to the base plane of the lamellae.</P> <P><B>Highlights</B></P> <P> <UL> <LI> (1→3)-α-<SMALL>D</SMALL>-Glucan was synthesized by recombinant glucosyltransferase sing sucrose. </LI> <LI> The synthetic products had two morphologies: wavy fibril and thin lamella. </LI> <LI> Both products had the same crystal structures but different molecular arrangements. </LI> <LI> Molecular chains were folded in the fibril but extended in the lamellar crystals. </LI> <LI> The hydrated form was converted into an anhydrous form by drying. </LI> </UL> </P>
Tetsutaro Yamaguchi,Akira Kawaguchi,Yong-Il Kim,Shugo Haga,Koshu Katayama,Hajime Ishida,Soo-Byung Park,Koutaro Maki,Ryosuke Kimura 대한치과교정학회 2014 대한치과교정학회지 Vol.44 No.2
Objective: A recent study suggested that rs6504340, a polymorphism within the homeobox B (HOXB) gene cluster, is associated with the susceptibility for malocclusions in Europeans. The resulting malocclusions require orthodontic treatment. The aim of this study was to investigate the association of rs6504340 and other dentition-implicated polymorphisms with dental and occlusal traits in Korean and Japanese populations. Methods: The study participants included 223 unrelated Koreans from the Busan area and 256 unrelated Japanese individuals from the Tokyo metropolitan area. DNA samples were extracted from saliva specimens. Genotyping for rs6504340 and four single nucleotide polymorphisms (SNPs) that have been shown to be associated with the timing of first tooth eruption and the number of teeth at 1 year of age (rs10506525, rs1956529, rs9674544, and rs8079702) was performed using TaqMan assays. The Index of Orthodontic Treatment Need (IOTN), overjet, overbite, arch length discrepancy, crown sizes, and length and width of the dental arches were measured. Spearman’s correlation coefficients were calculated to evaluate relationships between rs6504340 and these dental/occlusal traits. Results: We evaluated the aesthetic components and dental health components of the IOTN in the Korean and Japanese populations and found that neither rs6504340 nor the other four SNPs showed any association with dental and occlusal traits in these East Asian populations. Conclusions: These negative results suggest that further research is needed to identify the genetic determinants of malocclusions in order to reach a consensus.