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Synchrotron-radiation-based <SUP>174</SUP>Yb Mossbauer Spectroscopy of the 1/1 Au-Al-Yb Approximant
Yumi Kinoshita,Hisao Kobayashi,Nobumoto Nagasawa,Yoshitaka Yoda,Ryo Masuda,Yuki Nakamura,Yuya Sakakibara,Kazuhiko Deguchi 한국물리학회 2023 새물리 Vol.73 No.12
The Yb-based valence-uctuating Au-Al-Yb quasicrystal exhibits unconventional quantum critical phenomena with unusual critical indices at low temperatures at ambient pressure. Furthermore, the quantum criticality of the Au-Al-Yb quasicrystal remains robust even under hydrostatic pressure. In contrast, the Au-Al-Yb 1/1 approximant does not display quantum criticality at ambient pressure and quantum criticality appears at approximately 2.0 GPa with the same critical indices as the quasicrystal. In this study, we conducted synchrotron-radiation (SR) -based <SUP>174</SUP>Yb Mossbauer spectroscopy on both the quasicrystal and 1/1 approximant, allowing us to observe di_erences in the 4f electronic states of Yb ions between the quasicrystal and 1/1 approximant.
Dietary L-Cysteine Inhibits D-Galactosamine-induced Acute Liver Injury in Rats
이슬기,한규호,Erina Yabuki,Yumi Nakamura,Sakura Kawakami,Ken-ichiro Shimada,Hirotake Onoue,Michihiro Fukushima 한국식품과학회 2015 Food Science and Biotechnology Vol.24 No.3
The effects of L-cysteine (1 and 2%) on the antioxidative system were examined in rats with Dgalactosamine (D-GalN)-induced injury. These rats showed increases in serum antioxidative enzyme and hepatic thiobarbituric acid reactive substances (TBARS) activities, with decreased hepatic/serum glutathione (GSH) levels and GSH-related enzyme activities. However, L-cysteine supplementation resulted in a decrease of hepatic TBARS levels, and increased catalase and serum GSH levels. The activities of serum enzymes in rats receiving 2% L-cysteine were significantly (p<0.05) lower than in D-GalN-injected group rats, and similar to levels in control group rats without acute liver injury. In addition, 2% L-cysteine increased the glutathione reductase activity and decreased the serum TBARS level in liver injury group rats. Dietary L-cysteine, especially at a 2% level, exerts a hepatoprotective effect by alteration of the GSH level and antioxidative enzyme activities.
Tomoko Ogawa,Noriko Hanamura,Masako Yamashita,Hiroko Kimura,Minori Ito,Takashi Nakamura,Yumi Kashikura,Yuki Nohara,Aya Noro 한국유방암학회 2012 Journal of breast cancer Vol.15 No.4
We introduce a method combining two oncoplastic techniques for breast-conserving reconstruction. The procedure is as follows: first, an extended glandular flap is made by undermining the breast from both the skin and the pectoralis fascia to the upper edge of the breast at the subclavicular area. After modeling the breast mound with the extended glandular flap, an inframammary adipofascial flap is made. The flap is reflected back to the breast area remodeled using the extended glandular flap. After reshaping the breast, the inframammary line is then re-shaped. This method is indicated for patients with breast cancer in the outer portion of the breast, who have small dense breasts, and have undergone a large excision of about 40% of their breast volume. We treated four patients, all of whom had either excellent or good cosmetic results with no fat necrosis.
Tomoko Ogawa,Noriko Hanamura,Masako Yamashita,Minori Ito,Hiroko Kimura,Takashi Nakamura,Yumi Kashikura,Yuki Nohara,Aya Noro 한국유방암학회 2013 Journal of breast cancer Vol.16 No.2
An abdominal advancement flap (AAF) is a flap that pulls the elevated abdominal skin up and creates the shape of the inferior portion of the breast by making a neo-inframammary fold. Seven patients underwent remodeling using an AAF or a method combining an AAF with other volume displacement techniques after partial mastectomy. The excision volume ranged from 15% to 35%. AAF with only mobilization of the gland flaps was performed in two cases, with lateral mammoplasty in one case, with the round block technique (RBT) in one case, with a modified RBT in one case, and with medial mammoplasty in two cases. Although one patient treated with a RBT had a partial blood-flow insufficiency of the nipple-areola complex, it improved with conservative treatment. The cosmetic results were found to be excellent in three cases, good in three, and fair in one case.
Yuki Nohara,Noriko Hanamura,Hisamitsu Zaha,Hiroko Kimura,Yumi Kashikura,Takashi Nakamura,Aya Noro,Nao Imai,Mai Shibusawa,Tomoko Ogawa 한국유방암학회 2015 Journal of breast cancer Vol.18 No.1
Purpose: Although various strategies have been reported, thereare no defined criteria for cosmetic evaluation methods afterbreast-conserving surgery (BCS). Since Asians tend to havesmaller breasts, indistinct inframammary folds, and conspicuousscars, differences in the cosmetic results are expected. So weexamined two subjective methods and one objective method todetermine the differences, and elements necessary for a cosmeticevaluation after BCS. Methods: Frontal photographs of 190Japanese were evaluated using the Harris scale (Harris) and theevaluation method proposed by the Japanese Breast Cancer SocietySawai group (Sawai group) as the subjective methods, andthe Breast Cancer Conservation Treatment cosmetic results(BCCT.core) as the objective method, respectively. In order to examinethe necessary elements for developing a new ideal method,100 out of 190 were selected and assessed separately by sixraters using both the Harris and modified Sawai group methodsin the observer assessment. The correlation between the twomethods was examined using the Spearman rank-correlation coefficient. Results: The results of the BCCT.core and the other twomethods were clearly different. In the observer assessment, theconsensuses of the six raters were evaluated as follows: 27, 27,26, and 20 cases were evaluated as “excellent,” “good,” “fair,”and “poor,” respectively. For the Spearman rank-correlation coefficient,values higher than 0.7 indicated a strong correlation, asseen by the values of 0.909 for the breast shape and 0.345 forthe scar. The breast shape accounted for the most significantpart of the evaluation, and the scar had very little correlation. Conclusion:In this study, we recognized a clear difference betweenthe subjective and objective evaluation methods, and identifiedthe necessary elements for cosmetic evaluation. We would like tocontinue developing an ideal cosmetic evaluation that is similar tosubjective one and is independent from raters.