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QLF-D를 활용한 국내 시판 불소 바니쉬의 재광화 효과에 대한 융합적 연구
곽민서,이수영 한국융합학회 2017 한국융합학회논문지 Vol.8 No.1
본 연구의 목적은 치과임상에서 불소 바니쉬 선택 시 고려해야 할 정보를 제공하고자 국내에서 사용하는 모든 불소 바니쉬를 선정하여 초기우식병소의 재광화 효과를 분석하고자 하였다. 7종의 불소 바니쉬를 무작위 배분 하여 영구치(56)는 7종(CS, MI, CW, VV, EP, FP, FN)을, 유치(20)는 그중 CS, MI, CW, FP를 사용하였다. 시편 은 네일바니쉬로 3x3mm2 윈도우 형성 후 4일간 탈회시키고, 영구치와 유치로 구분하여 불소 바니쉬 도포 후 1주간 인공타액에서 교반하였다. QLF-D을 이용하여 우식 병소크기 변화를 분석한 결과, 영구치에서 바니쉬 도포전에 비 해 도포 후 CS(4,64), MI(4.86), CW(4.50), EP(5.50)바니쉬가 △F값이 감소하였고, 유치에서 FP(3.00), MI(3.00)바 니쉬에서 재광화 효과가 나타났다. 그러므로 MI바니쉬는 치과임상에서 성인과 아동 모두에게 우식예방을 위한 불 소도포 제제로 유용하게 활용될 수 있을 것이다. This study is to analyze seven fluoride varnishes remineralizing effects on early carious lesions in the clinical field. While CS, MI, CW, VV, EP, FP and FN were used for permanent teeth, CS, MI, CW and FP were used for primary teeth. The specimens were demineralized for 4 days after forming a 3 x 3 mm2 window with nail varnish, applied with varnishes separately, then were stirred in artificial saliva for 1 week. QLF-D analysis of carious lesion size showed that permanent teeth's △F value decreased after applying CS(4,64), MI(4.86), CW(4.50), and EP(5.50), while for primary teeth, FP(3.00) and MI(3.00) displayed a remineralizing effect. Thus, MI can be used effectively for preventing caries for both adults and children in the clinical field.
칼 안드레(Carl Andre, 1935∼)의 원소(elements)박물관
곽민아 미술사문화비평학회 2013 미술사문화비평 Vol.4 No.-
Andre’s floor pieces can be summarized as a simple pattern of repeating the unit of geometrical shape. Andre defined that the purpose of his work was to find and select an independent particle and make a work piece based on it. The unit is a unit that composed the whole piece and this concept corresponds to how Andre referred the particle therefore the unit is the root of his floor piece. Andre’s modular unit is fundamental and has singular size and properties. The modular unit are made to be simplest form with minimum requirements. This modualr units can be combined and form anxial symmetry that are free to exchange, add and remove - which is an important feature of Andre’s work. For this reason, Andre’s unit is the part of floor piece but, at the same time, it exists as the floor piece by itself. Andre wanted to make his unit to be most fundamental ones and noted basic materials : elements material. The element material cannot be splitted into any subordinate unit. Andre selected the Periodic table of the elements which organized by Dmitrii Ivanonichi Mendeleev, Russian chemist, as the theoretical basis. Since Andre was a child, he was interested in chemistry. Andre wanted to build a museum to exhibit samples of all materials. Andre’s floor pieces that are made of elements material show a desire for the museum. In the choosing the material, Andre followed the Periodic table of the elements outright. To emerge from the limitation on the selection of material, Andre used the method to place his units by intersection. The pieces are made with pure materials provided various experiences for visitors beyond the visual experience. Without dazzling visual stimuli, Andre’s floor pieces which made of element materials are active and free existence and does not lose its own identity and value always.
운동과 이침요법을 병행한 체중조절 프로그램이 비만아동의 체성분, 혈액구성 및 체력에 미치는 영향
곽민아,김대준,변준석 대한침구의학회 2009 대한침구의학회지 Vol.26 No.2
Objectives : The purpose of this study was to investigate the changes of obesity, blood composition and physical ability in obese children on body weight control program. Methods : The body weight control program included exercise, nutrition education and auricular acupuncture was performed 4 times a week during 12 weeks. 32 obese children whose body fat ratio were over 30% participated in this study. Measuring materials were body composition(weight, muscle mass, fat mass, fat ratio, BMI), physical measurement(height, waist circumference, chest circumference, hip circumference), physical ability(grip strength, sit-ups, sitting trunk flexion, sit-down stand-up test, standing long jump, opened eyes foot balance, side step), blood composition(WBC, Hb, ESR, Total Cholesterol, TG, GOT, GPT, BUN, Creatinine, Glucose) and survey(changes of eating habits, changes of living habits, knowledge of obesity, self-confidence, self-esteem). Results : From the results, positive changes were made in BMI, height, waist circumferences, chest circumferences, hip circumferences, sit-ups, sitting trunk flexion, sit-down stand-up test, standing long jump, opened eyes foot balance, side step, Hb, ESR, GOT, GPT and changes of eating habits through the body weight control program. Conclusions : This results suggest that body weight control program including exercise, nutrition education and auricular acupuncture may be effective for helping obese children.
正傳加味二陳湯과 clarithromycin의 倂用이 Helicobacter pylori에 미치는 영향
곽민아,서부일,변준석 대한본초학회 2004 大韓本草學會誌 Vol.19 No.3
Objectives : To evaluate the antibacterial and synergic effects of Jengjengamiygin-tang(JJGM) with clarithromycin by in Vitro and in Vivo methods. Methods : The minimal inhibitory concentration(MIC), MIC50 and MIC90 of single use of clarithromycin, JJGM and their concomitant treatment against Helicobacter pylori were observed. In addition, the changes of ulcerative lesions and viable cell numbers were also monitored after having experimented gastric infected mice models with Helicobacter pylori. Results : 1. The concomitant treatment of clarithromycin and JJGM showed relatively more favorable antibacterial effects than those of each. 2. The numbers of ulcerative lesions were more effectively inhibited by combination use of clarithromycin and JJGM. 3. The numbers of viable Helicobacter pylori were more effectively inhibited by combination use of clarithromycin and JJGM. Conclusions : The concomitant treatment of clarithromycin and JJGM showed relatively more favorable antibacterial effects than those of each.
Fabrication of Polyphenol-incorporated Hyaluronic Acid Hydrogels for Tissue Adhesives
곽민아,박원호 한국고분자학회 2021 한국고분자학회 학술대회 연구논문 초록집 Vol.46 No.1
히알루론산(HA)은 D-glucuronic acid와 N-acetyl-D-glucosamine을 반복 단위로 가지는 음이온성 천연 다당류로 인체의 피부나 연골에 주로 존재한다. 우수한 생체적합성, 생분해성, 무독성 및 보습성 등의 특성을 가지기 때문에 조직공학 및 의약학 분야에서 다양하게 응용되고 있으며, 특히 사슬의 친수성 및 유연성이 우수하여 수화젤 형태로의 적용을 위한 연구가 많이 진행되고 있다. 하지만, 히알루론산 수화젤은 기계적 강도가 낮아 사용에 제한이 있어, 본 연구에서는 히알루론산 고분자에 다양한 기질에 우수한 접착력을 발현하는 카테콜기를 도입하여 이를 보완하고자 하였다. 제조된 히알루론산의 카테콜 유도체(HA-Cat)를 사용하여 산화가교에 의한 수화젤의 형성거동을 분석하였고, 접착력을 향상시키기 위해 식물에서 추출한 폴리페놀 화합물인 탄닌산(TA)을 추가로 첨가하였다. 첨가한 탄닌산 함량에 따른 HA-Cat 수화젤의 물리·화학적 특성 및 조직 접착력 등의 특성 분석을 통해 의료용 조직접착제로의 적용 가능성을 검토하였다.