청소년의 긍정적 정서 및 부정적 정서 수준과 생활만족도간의 관계 연구

允淑眞 서울여자대학교 사회과학연구소 2008 사회과학논총 Vol.15 No.-

본 연구는 신경과학적 최근 연구결과를 바탕으로, 부정적 정서와 긍정적 정서를 관장하는 기저가 응일하다고 보는 기존 심리학의 입장에 의문을 제기하면서, 부정성과 긍정성이 평가되는 기제가 서로 분리된 경로를 통하여 작동된다는 ESM(Evaluative Space Model)의 가능성을 탐색하기 위해 실시되었다. 이를 위해 본 연구에서는 생활만족도가 높은 집단과 그렇지 않은 집단 간에 긍정적 정서와 부정적 정서 그리고 생활만족간의 관계가 어떠한 양상을 보이는지를 청소년을 대상으로 살펴보았다. 연구 결과 전체 집단의 경우 긍정적 정서와 생활만족도가 정적인 상관을 부정적 정서와 생활만족도가 부적인 상관을 보였다. 한편 높은생활만족군의 경우 긍정적인 정서는 생활만족도와 정적인 상관을 보였으나 부정적 정서가 생활만족도와 정적인 상관을 보여 적어도 높은 수준의 생활만족을 느끼는 사람의 경우 정서에 대한 긍정적 평가와 부정적 평가가 독립된 경로에 의해 작동될 수 있다는 가능성을 보였다.

광도에 따른 치과용 콤포머의 기계적 성질에 관한 연구

윤숙진 대한치과기재학회 2000 대한치과재료학회지 Vol.27 No.1

The aim of this study was to the effect of the light intensity and exposure time on the mechanical properties of dental compomer. Two compomers as experimental group, one resin-modified glass ionomer and one dental composite resin as control were used. The materials were photopolymerized with four different relative light intensities(10%, 36%, 63% and 100%) which were obtained by altering the input voltage and cured for two exposure times(20 sec and 40 sec). And then, the compressive strength, elastic modulus, surface hardness of the upper and lower side were evaluated. From the experiment, the following results were obtained. In all groups the compressive strength and elastic modulus were increased according to the increase of relative light intensity. But in above the 400 mW/㎠ of light intensity, there showed small increase. In low intensity(≤ 10% of relative intensity) light, FL showed higher compressive strength, and in above moderate intensity(≥36%) light, CG and ZH showed higher properties than any other. DR and FL didn't show the difference but CG and ZH showed the difference of strength with the exposure time. Surface hardness were increased in all groups and the difference of the hardness of the upper and lower surface were decreased according to the increase of the relative light intensity.

치과용 매식체 : 재료와 디자인시 고려사항 Materials and design considerations

윤숙진,김철위 서울대학교 치과대학 치과생체재료학교실 1995 치과생체재료학 논문집 Vol.3 No.1

레진 강화형 글라스 아이오노머 시멘트와 콤포머의 용해도와 불소유리

윤숙진 대한치과기재학회 1997 대한치과재료학회지 Vol.24 No.2

The purpose of this study was to compare both the solubility of the resin-reinforced glass ionomer coments and compomers in deionized water and 0.1 M lactic acid and the fluoride release into deionized water. Two resin-reinforced glass ionomer cements, two compomers, and one conventional glass ionomer cement as control were tested. Six disk-form specimens(10mm×1mm) of each cement were prepared. Afterinitial weight measurement, the specimens were immersed in deionized water and 0.1M lactic acid sloution at 37±1℃ for 1, 7, 14, 30, and 60 days. After the immersion at specific periods, the specimens were rinsed and dried and reweighted for final weight and determined the solubility. In fluoried release mesurements, the media were changed and fluorede concentration was measured by using a fluoride ion electrode(Phoenix Electrode Co., U.S.A.) and standard solutions for 1, 7, 14, 30, and 60 days. From the experiment, the following results were obtained 1. The solubility of the resin-reinforced glass ionomer cements was decreased until 7 days as well as control, after then increased in deionized water immersion. 2. The solubility of the compomers was continuously decreased in deionized water. 3. The solubility of the FUJ was the highest in the test periods, then VTR, FUL, CPG, and DYR in order in 0.1M lactic acid solution. 4. At initial periods, DYR and CPG released much less fluoride ionws than FUL and VTR. 5. Fluoride release was increased with the increase of solubility in resin-reinforced glass ionmer cements.

불소이온에 따른 치과용 티타늄의 전기화학적 부식

윤숙진,김철위 서울大學校 齒科大學 1995 齒大 論文集 Vol.19 No.2

2세대 간접법용 콤포짓트 레진

윤숙진 대한치과기재학회 1999 대한치과재료학회지 Vol.26 No.2

치과용 콤포머의 세포독성에 관한 연구

윤숙진 대한치과기재학회 1998 대한치과재료학회지 Vol.25 No.2

The objective of this study was to investigate cytotoxic effect of the dental compomers to L929 cells. Two dental compomers as experimental group, and one resin-reinforced glass ionomer cement, one dental composite resin as control were tested and colorimetric assays, namely MTT assay and agar overlay assay were used. Each specimen was prepared according to the manufacturer's instruction and extracted in deionized water 1 hr- and 24 hr-after light cuting for the MTT assay. In MTT assay, after the cells were exposed to the extracts for 24 hours, the medium was removed, then MTT solution were added. After 3 hr of incubation, acid isopropanol (0.04 N HCI in isopropanol) was added, the relative absorbance(%) of formazan production were measured at 550 nm. In agar overlay assay, after the cell monolayer had formed, medium was removed and medium containing bactoagar was added. The cells were stained with 0.01% neutral red solution and the specimens were placed on the agar. After incubation for 24 hours, the cultures were examined macroscopically and microscopically to determine the cytotoxicity. From the experiment, the following results were obtained 1. In the extracts of 1 hr-after light curing, dental composite resin have showed insignificantly lower relative absorbance than dental compomer DR and have not showed the difference with other materials and control(p<0.5). 2. In the extracts of 24 hr-after light curing, dental compomer CG have showed the lowest relative absorbance of the materials, but not statistically significant(0.05). 3. Dental composite have showed moderate cytotoxicity of 2/2 of the response index, whereas the other materials have showed mild cytotoxicity.

국화 옆에서 I

윤숙진 이화여자대학교 음악대학 작곡과 1973 멜로디 Vol.- No.8

Micronucleus test를 이용한 수종 결합용레진과 상아질결합제의 돌연변이 유발에 관한 연구

이용근,전혜림,김철위,윤숙진 大韓齒科器材學會 1992 대한치과재료학회지 Vol.19 No.1

The purpose of this study was to evaluate the mutagenicity of the bonding resins of dental composites and the dentin bonding agents. Eight bonding resins, six dentin bonding agents and distilled water (negative control) were administered orally and cyclophosphamide (positive control) was administered intraperitoneally to the mice. The mice were killed by cervical dislocation at 24 hours after administration and the femurs were removed and dissected. The bone marrow cells were collected and smeared on glass slides and stained with haematoxylin-eosin staining method and were observed with light microscope(X450). The following results can be drawn: 1. The bonding resins of dental composites and the dentin bonding agents were tested in this study seemed to be non-mutagenic. 2. The numbers of micronucleated polychromatic erythrocytes were similar both in the bonding resins of dental composites and the dentin bonding agents. 3. In the case of some products(AP, SC' and AA), the number of micronucleated polychromatic erythrocs was high beyond other products.

타이타늄의 주조성

최기열,장경수,윤숙진 대한치과기재학회 1999 대한치과재료학회지 Vol.26 No.2

In order to investigate the castability of titanium, Kennedy Class 1, division 2 removable partial denture frameworks were designed. According to the manufacturer's instruction, 10 casting bodies each were obtained with pure titanium and cobalt-chrome alloy. The results were as follows ; 1. Castability of titanium was comparable with that or cobalt-chrome alloy in terms of fitness and surface detail reproducibility. 2. There was no radiographically detectable porosity in each casting body of titanium and cobalt-chrome alloy. 3. The number of internal porosities and narrow, long defect were almost same between titanium and cobalt-chrome alloy. 4. Vickers hardness number of cobalt chrome alloy was 439.4±16.1 and that of titanium was 200.1±23.3. 5. Biocompatibility and low density of castable titanium would provide denture rearers with multiple benefits.