http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Morita, Makiko,Yin, Guang,Yoshimitsu, Shin-Ichiro,Ohnaka, Keizo,Toyomura, Kengo,Kono, Suminori,Ueki, Takashi,Tanaka, Masao,Kakeji, Yoshihiro,Maehara, Yoshihiko,Okamura, Takeshi,Ikejiri, Koji,Futami, K Asian Pacific Journal of Cancer Prevention 2013 Asian Pacific journal of cancer prevention Vol.14 No.11
One-carbon metabolism plays an important role in colorectal carcinogenesis. Meta-analyses have suggested protective associations of folate and vitamin $B_6$ intakes with colorectal cancer primarily based on studies in Caucasians, and genetic polymorphisms pertaining to the folate metabolism have been a matter of interest. Less investigated are the roles of methionine synthase (MTR) and thymidylate synthetase (TS) polymorphisms in colorectal carcinogenesis. In a study of 816 cases and 815 community controls in Japan, we investigated associations of dietary intakes of folate, methionine, vitamin $B_2$, vitamin $B_6$, and vitamin $B_{12}$ with colorectal cancer risk. The associations with MTR 2756A>G, MTRR 66A>G, and TSER repeat polymorphism were examined in 685 cases and 778 controls. Methionine and vitamin $B_{12}$ intakes were inversely associated with colorectal cancer risk, but the associations were totally confounded by dietary calcium and n-3 fatty acids. The other nutrients showed no association with the risk even without adjustment for calcium and n-3 fatty acids. The TSER 2R allele was dose-dependently associated with an increased risk. The MTR and MTRR polymorphisms were unrelated to colorectal cancer risk. There was no measurable gene-gene or gene-nutrient interaction, but increased risk associated with the TSER 2R allele seemed to be confined to individuals with high folate status. This study does not support protective associations for folate and vitamin $B_6$. The TSER 2R allele may confer an increased risk of colorectal cancer. The role of the TSER polymorphism in colorectal carcinogenesis may differ by ethnicity.
Masaru Teraoka,Koji Morita,Satoshi Sasaki,Daisuke Katsura 국제구조공학회 2001 Steel and Composite Structures, An International J Vol.1 No.3
The purpose of this paper is to propose a new type of steel reinforced concrete (SRC) beam-column joints and to examine the structural performance of the proposed joints, which simplify the construction procedure of steel fabrication, welding works, concrete casting and joint strengthening. In the proposed beam-column joints, the steel element of columns forms continuously built-in crossing of H-sections ( ), with adjacent flanges of column being connected by horizontal stiffeners in a joint at the level of the beam flanges. In addition, simplified lateral reinforcement ( ) is adopted in a joint to confine the longitudinal reinforcing bars in columns. Experimental and analytical studies have been carried out to estimate the structural performance of the proposed joints. Twelve cruciform specimens and seven SRC beam-column subassemblage specimens were prepared and tested. The following can be concluded from this study: (1) SRC subassemblages with the proposed beam-column joints show adequate seismic performances which are superior to the demand of the current code; (2) The yield and ultimate strength capacities of the beam-to-column connections can be estimated by analysis based on the yield line theory; (3) The skeleton curves and the ultimate shear capacities of the beam-column joint panel are predicted with a fair degree of accuracy by considering a simple stress transfer mechanism.
Bending Strength of Textured Alumina Prepared by Slip Casting in a Strong Magnetic Field
Suzuki Tohru S.,Uchikoshi Tetsuo,Morita Koji,Hirage Keijiro,Sakka Yoshio 한국분말야금학회 2006 한국분말야금학회 학술대회논문집 Vol.2006 No.1
The mechanical properties of ceramics materials can be tailored by designing their microstructures. We have reported that development of texture can be controlled by slip casting in a strong magnetic field followed by heating even for diamagnetic ceramics such as alumina. A strong magnetic field of 12T was applied to the suspension indcuding alumina powder to rotate each particle during slip casting. The sintering was conducted at the desired temperature in air without a magnetic field. C-axis of alumina was parallel to the magnetic field. Bending strength of textured alumina depended on the direction of oriented microstructure.
MaikoYamauchi-Satomoto,Yushi U. Adachi,Tadayoshi Kurita,Koji Morita,Shigehito Sato 대한마취통증의학회 2012 Korean Journal of Anesthesiology Vol.62 No.4
Background: We hypothesized that cross-clamping of the descending thoracic aorta (CcDTA) would result in significant changes in plasma propofol concentrations (Cp) proximal and distal to the cross-clamp. We investigated the effect of CcDTA on Cp centrally and distally, including the pulmonary artery and the cardiopulmonary bypass (CPB) cannula. Methods: The bispectral index (BIS) was recorded during CcDTA in eight patients undergoing thoracic aortic surgery using target-controlled total intravenous anesthesia with propofol. The calculated Cp was maintained at 3 μg/ml. Cp was measured in blood samples drawn from the right radial artery, left dorsalis pedis artery, pulmonary artery, and the long venous CPB cannula. Results: Complete data were obtained from six patients. BIS decreased significantly in all cases 5 minutes after initiating CcDTA. BIS continued to decrease in association with increasing propofol concentrations. During CcDTA, Cp in samples from the radial and pulmonary arteries (3.5 ± 0.50 and 2.9 ± 0.63 μg/ml, mean ± SD) was significantly higher than in samples from the dorsalis pedis artery and the venous cannula (1.1 ± 0.22 and 1.4 ± 0.02 μg/ml) (P < 0.05). Conclusions: The results suggest that almost all of the blood returning from the superior vena cava during CcDTA directly enters the pulmonary circulation without mixing with blood from the inferior vena cava. Observed changes in anesthetic blood concentrations could be due to the presence of a split circulation and asymmetrical distribution of propofol induced by CcDTA and CPB. Background: We hypothesized that cross-clamping of the descending thoracic aorta (CcDTA) would result in significant changes in plasma propofol concentrations (Cp) proximal and distal to the cross-clamp. We investigated the effect of CcDTA on Cp centrally and distally, including the pulmonary artery and the cardiopulmonary bypass (CPB) cannula. Methods: The bispectral index (BIS) was recorded during CcDTA in eight patients undergoing thoracic aortic surgery using target-controlled total intravenous anesthesia with propofol. The calculated Cp was maintained at 3 μg/ml. Cp was measured in blood samples drawn from the right radial artery, left dorsalis pedis artery, pulmonary artery, and the long venous CPB cannula. Results: Complete data were obtained from six patients. BIS decreased significantly in all cases 5 minutes after initiating CcDTA. BIS continued to decrease in association with increasing propofol concentrations. During CcDTA, Cp in samples from the radial and pulmonary arteries (3.5 ± 0.50 and 2.9 ± 0.63 μg/ml, mean ± SD) was significantly higher than in samples from the dorsalis pedis artery and the venous cannula (1.1 ± 0.22 and 1.4 ± 0.02 μg/ml) (P < 0.05). Conclusions: The results suggest that almost all of the blood returning from the superior vena cava during CcDTA directly enters the pulmonary circulation without mixing with blood from the inferior vena cava. Observed changes in anesthetic blood concentrations could be due to the presence of a split circulation and asymmetrical distribution of propofol induced by CcDTA and CPB.
Fungemia due to Trichosporon dermatis in a patient with refractory Burkitt’s leukemia
Satoshi Hashino,Shojiro Takahashi,Rena Morita,Hiroe Kanamori,Masahiro Onozawa,Takahito Kawamura,Kaoru Kahata,Takeshi Kondo,Issei Tokimatsu,Takashi Sugita,Koji Akizawa,Masahiro Asaka 대한혈액학회 2013 Blood Research Vol.48 No.2
Tsuzuki, Yasuhiro,Toyama, Hitomi,Nabenishi, Hisashi,Morita, Tetsuo,Ashizawa, Koji Asian Australasian Association of Animal Productio 2010 Animal Bioscience Vol.23 No.7
We investigated the effect of various concentrations of taurine during in vitro fertilization (IVF) on the embryonic development up to the blastocyst stage of bovine oocytes fertilized with three different Japanese Black bulls (Bull A, B and C). In vitro matured oocytes were fertilized with various concentrations of taurine (0, 1, 10, 50 and 100 mM) in the presence of 2.5 or 5.0 mM caffeine plus $25{\mu}g$/ml heparin (CH) for 6 hr or $100{\mu}g$/ml heparin (H) for $24{\pm}2$ h. After IVF, the cleavage rates from the 2 to 16 cell stage determined at 3 days and the development rates up to the blastocyst stage determined at 7-8 days from the onset of IVF were assessed. Although the cleavage rates for the taurine concentration groups were not significantly increased in any of the three bulls in the CH groups, the development rates up to the blastocyst stage of the 50 mM taurine group of Bulls A and B, and of the 1 to 50 mM groups of Bull C were increased (p<0.05) compared to those of the control (0 mM taurine) groups. On the other hand, none of the bulls in the H groups showed any significant increase either in the cleavage rates or blastocyst formation rates in any taurine concentrations groups compared with those of the control groups. These results indicate that the addition of 50 mM taurine to a fertilization medium containing caffeine and heparin may stimulate embryonic development up to the blastocyst stage when fertilized with different bull semen.
Chun-Feng Hu,김병남,박영조,Koji Morita,Hidehiro Yoshida,Salvatore Grasso,Hai-Bin Zhang,Shu-Qi Guo,Yoshio Sakka 한양대학교 세라믹연구소 2015 Journal of Ceramic Processing Research Vol.16 No.3
Nano ZrO2-10 vol.% TiN composite was fabricated by spark plasma sintering (SPS) using nano sized 3Y-ZrO2 and TiN particles as initial materials. The effects of sintering temperature of 1100-1300 o C, heating rate of 2-250 o C/min, annealing time of 5-120 min, and applied pressure of 20-100 MPa on the microstructure and mechanical properties were systemically investigated. It was confirmed that the main compositions of densified composites were t-ZrO2 and c-TiN. Both the sintering temperature above 1100 o C and the applied pressure above 60 MPa were the most important factors to affect the full densification of composites. The grain sizes of ZrO2 and TiN were kept below 243 and 171 nm, respectively. Vickers hardness of 13.90-15.53 GPa, fracture toughness of 2.91-5.44 MPa • m1/2, and Young’s modulus of 216.2-228.0 GPa of dense composites ascribed to the sintering parameters were discussed.
Fungemia due to Trichosporon dermatis in a patient with refractory Burkitt’s leukemia
Satoshi Hashino,Shojiro Takahashi,Rena Morita,Hiroe Kanamori,Masahiro Onozawa,Takahito Kawamura,Kaoru Kahata,Takeshi Kondo,Issei Tokimatsu,Takashi Sugita,Koji Akizawa,Masahiro Asaka 대한혈액학회 2013 Blood Research Vol.48 No.2
CHARACTERISTICS OF SELF-LEVELING BEHAVIOR OF DEBRIS BEDS IN A SERIES OF EXPERIMENTS
Cheng, Songbai,Yamano, Hidemasa,Suzuki, TYohru,Tobita, Yoshiharu,Nakamura, Yuya,Zhang, Bin,Matsumoto, Tatsuya,Morita, Koji Korean Nuclear Society 2013 Nuclear Engineering and Technology Vol.45 No.3
During a hypothetical core-disruptive accident (CDA) in a sodium-cooled fast reactor (SFR), degraded core materials can form roughly conically-shaped debris beds over the core-support structure and/or in the lower inlet plenum of the reactor vessel from rapid quenching and fragmentation of the core material pool. However, coolant boiling may ultimately lead to leveling of the debris bed, which is crucial to the relocation of the molten core and heat-removal capability of the debris bed. To clarify the mechanisms underlying this self-leveling behavior, a large number of experiments were performed within a variety of conditions in recent years, under the constructive collaboration between the Japan Atomic Energy Agency (JAEA) and Kyushu University (Japan). The present contribution synthesizes and gives detailed comparative analyses of those experiments. Effects of various experimental parameters that may have potential influence on the leveling process, such as boiling mode, particle size, particle density, particle shape, bubbling rate, water depth and column geometry, were investigated, thus giving a large palette of favorable data for the better understanding of CDAs, and improved verifications of computer models developed in advanced fast reactor safety analysis codes.