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Morphology Controlled Synthesis of Nanostructured Bi2Te3
Hee-JinKim,Mi-Kyung Han,Ha-young Kim,이우영,김성진 대한화학회 2012 Bulletin of the Korean Chemical Society Vol.33 No.12
Nanostructured thermoelectric bismuth telluride (Bi2Te3) powders with various morphologies, such as nanoplates, nanorods, and nanotubes, were prepared by a hydrothermal method based on the reaction between BiCl3, Te, and sodium ethylenediaminetetraacetate (Na2-EDTA) at 150, 180, and 210 °C. The products were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), and selected area electron diffraction (SAED). The effect of reaction temperature on the morphology of the Bi2Te3 particles was investigated, and the possible mechanism of morphology control was proposed.
Jin Kim,Yoon Hee Lee,Jung Han Yoon Park,Mi-Kyung Sung 한국영양학회 2015 Nutrition Research and Practice Vol.9 No.6
BACKGROUND/OBJECTIVES: Obesity is a risk factor of breast cancer in postmenopausal women. Estrogen deprivation has been suggested to cause alteration of lipid metabolism thereby creating a cellular microenvironment favoring tumor growth. The aim of this study is to investigate the effects of estrogen depletion in combination with excess energy supply on breast tumor development. MATERIALS/METHODS: Ovariectomized (OVX) or sham-operated C3H/HeN mice at 4 wks were provided with either a normal diet or a high-fat diet (HD) for 16 weeks. Breast tumors were induced by administration of 7,12-dimethylbenz(a)anthracene once a week for six consecutive weeks. RESULTS: Study results showed higher serum concentrations of free fatty acids and insulin in the OVX+HD group compared to other groups. The average tumor volume was significantly larger in OVX+HD animals than in other groups. Expressions of mammary tumor insulin receptor and mammalian target of rapamycin proteins as well as the ratio of pAKT/AKT were significantly increased, while pAMPK/AMPK was decreased in OVX+HD animals compared to the sham-operated groups. Higher relative expression of liver fatty acid synthase mRNA was observed in OVX+HD mice compared with other groups. CONCLUSIONS: These results suggest that excess energy supply affects the accelerated mammary tumor growth in estrogen deprived mice.
( Jin Kim ),( Hahck Soo Park ),( Soo Young Cho ),( Hee Jung Baik ),( Jong Hak Kim ) 대한통증학회 2015 The Korean Journal of Pain Vol.28 No.1
Lymphedema of the upper limb after breast cancer surgery is a disease that carries a life-long risk and is difficult to cure once it occurs despite the various treatments which have been developed. Two patients were referred from general surgery department for intractable lymphedema. They were treated with stellate ganglion blocks (SGBs), and the circumferences of the mid-point of their each upper and lower arms were measured on every visit to the pain clinic. A decrease of the circumference in each patient was observed starting after the second injection. A series of blocks were established to maintain a prolonged effect. Both patients were satisfied with less swelling and pain. This case demonstrates the benefits of an SGB for intractable upper limb lymphedema. (Korean J Pain 2015; 28: 61-63)
The Study of Children`s Costumes Historical in Enlightment Period of Korea
( Jin Kim ),( Hee Soon Sohn ) 한국패션비즈니스학회 2006 패션 비즈니스 Vol.10 No.6
This study was aimed at reviewing kinds and characteristics of children`s costumes in consideration of their social and cultural backgrounds and particularly, those of children`s costumes during the period of Enlightenment following Chosun dynasty and thereafter. Namely, this study focused on children`s costume history in view of not adults` costume miniatures but their own concept. It is deemed very significant to review the history of our traditional costumes and thereby, express their decorative features with our contemporary sense. It is results can be summed up as follows; Strictly speaking, the period of Enlightenment can be defined as the one from Gwangwhado treaty in 1876 through annexation of Korea by Japan in 1910, but it may well extend until our emancipation from Japan in 1945. By 1890`s, children`s costumes remained almost traditional, but since then, the Chimas as well as Jeogori and breast tie began to be narrower. Particularly, Children`s Jeogori began to be narrower with their breast tie disappearing gradually. By 1910`s, children`s costumes had changed much, with the breast tie replaced by the buttons and the longer Jeogoris.