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강수경,신미경,어규식,전양현,홍정표,Kang, Soo-Kyung,Shin, Mi-Kyoung,Auh, Q-Schick,Chun, Yang-Hyun,Hong, Jung-Pyo 대한안면통증구강내과학회 2007 Journal of Oral Medicine and Pain Vol.32 No.1
Plant extract has attracted considerable interest in oral disease therapy. The present study was performed to observe the antibacterial effect on cariogenic Streptococcus mutans GS5 and Streptococcus sobrinus 6715, and periodontopathic Actinobacillus actinomycetemcomitans Y4 of phytoncide from Chamaecyparis obtusa Sieb. et Zucc employing the measurement of optical density, viable cell counts, and antibiotic sensitivity. The results were as follows: 1. Minimum inhibitory concentration of the phytoncide for S. mutans, S. sobrinus, and A. actinomycetemcomitans was observed to be 0.5%, 1%, and 0.2%, respectively. 2. Minimum bactericidal concentration of the phytoncide for S. mutans, S. sobrinus, and A. actinomycetemcomitans was determined to be 0.5%, 2%, and 0.2%, respectively. 3. The bacteria exposed to the phytoncide become more sensitive to antibiotics. The phytoncide enhanced significantly antibacterial activity of ampicillin against S. mutans and S. sobrinus. It also increased significantly the activity of penicillin and amoxicillin against S. sobrinus. In contrast, the phytoncide augmented the activity of amoxicillin and cefotaxime against A. actinomycetemcomitans but the increase was not statistically significant. The overall results indicate that phytoncide from Chamaecyparis obtusa Sieb. et Zucc used for this study has a strong antibacterial activity against cariogenic and periodontopathic bacteria and that it also has permeabilizing effect on certain antibiotics against these bacteria. Therefore, the phytoncide may be used as a candidate for prevention and therapeutic agent against oral infectious disease including dental caries and periodontal disease.
편백 피톤치드가 Candida albicans에 미치는 영향에 대한 연구
강수경,어규식,전양현,홍정표,Kang, Soo-Kyung,Auh, Q-Schick,Chun, Yang-Hyun,Hong, Jung-Pyo 대한안면통증구강내과학회 2010 Journal of Oral Medicine and Pain Vol.35 No.1
Phytoncide, essential oil of trees, has microbicidal, insecticidal, acaricidal, and deodorizing effect. The present study was performed to examine the effect of phytoncide on Candida albicans, which is a commensal colonizer of the mucous membranes but has become an opportunistic pathogen. C. albicans was incubated with or without phytoncide extracted from Hinoki (Chamaecyparis obtusa Sieb. et Zucc.; Japanese cypress) and then changes were observed in its optical density, cell viability and morphology. As concentrations of phytoncide added to the culture medium increased, optical density and cell viability of C. albicans decreased. Minimum inhibitory concentration of phytoncide for C. albicans was observed to be 0.25%, and minimum fungicidal concentration was 0.5%. Numbers of morphologically atypical cells with electron-dense cytoplasm and granules and increased with increasing concentration of the phytoncide. At higher concentrations of phytoncide, compartments and organelles in the cytoplasm became indistinguishable. The overall results indicate that the phytoncide used for this study has a strong antimicrobial activity against C. albicans. Therefore, the phytoncide may be used as a candidate for prevention and therapeutic agent against oral candidiasis.
강수경(Soo Kyung Kang),이창우(Chang Woo Lee) 한국방송공학회 2010 한국방송공학회 학술발표대회 논문집 Vol.2010 No.7
분산 비디오 부호화 시스템(distributed video coding : DVC)에서는 기존의 비디오 부호화 시스템과는 달리 부호기가 아닌 복호기에서 움직임 추정 연산을 함으로써 부호기의 복잡성을 크게 줄일 수 있다. DVC 시스템의 복호기에서 생성되는 부가정보(side information : SI)는 전체 DVC 시스템의 성능에 큰 영향을 미친다. DVC 시스템의 복호기에서 SI 정보를 생성하기 위해서 움직임 보상 보간(motion compensated interpolation : MCI) 기법이 많이 사용되는데 본 논문에서는 다양한 MCI 기법들의 성능을 분석한다.
얼굴부위의 홍반 및 멜라닌지수와 일반적 특성과의 관련성
강수경 ( Soo Kyung Kang ),박정신 ( Jung Sin Park ),김경란 ( Kyoung Ran Kim ) 한국미용학회 2007 한국미용학회지 Vol.13 No.2
This study aims to identify erythema index, melanin index of facial skin of middle-aged women by non-invasive method. This measurement intends to grasp the skin condition on each facial part of middle-aged women, check the correlation between the measured values and determine the relation between objective measured values and the general characters The results were as follows: 1. For objective measurement by part of a face, erythema index and melanin index were higher on cheek, forehead and eye rims, forehead and cheek, respectively. 2. erythema index in facial skin showed significant correlation with the place of residence, educational background, monthly income of a household, driving that respondents observed by themselves and variables of skin troubles recognized by respondents. 3. melanin index in facial skin was significantly related to age, place of residence, educational background, monthly income of a household, driving that respondents observed by themselves and variables of skin troubles recognized by respondents. To sum up, the objectively measured values of skins, erythema index, melanin index vary on parts of a face and the significant relations were observed among measured values. Moreover, diverse variables such as place of residence, age, exposure to ultraviolet rays on skin conditions.
강수경 ( Soo Kyung Kang ),최근희 ( Keun Hee Choi ) 한국미용학회 2012 한국미용학회지 Vol.18 No.6
This study is aimed at presenting the basic data which enables us to decide and put in practice the policy of professional beauticians training by surveying the domestic beauty-related universities and colleges with graduated beautician status. And this study has categorized 2-year colleges and universities because of their representation of beauty-related school course classifying into small groups such as curriculum, school subjects, new students and graduates, the percentage of employment and the ratio of students to a higher school in recent 3 years. This survey restrictively includes 2-year colleges and 4-year universities. University ALIMI site operated by KCUE(Korean Council for University Education) and each university homepage are utilized for this study. The study result as follows; 1. 31 universities with 36 courses of study out of 196 universities and 99 colleges with 119 courses of study out of 141 2-year colleges have beauty-related departments. 2. Both 4-year and 2-year colleges compose the integrated beauty-related subjects and the courses of study after 2010 have specialized, classified and branded its subjects 3. New students slightly increase in 4-year universities and also slightly decrease in 2-year colleges. 4. The percentage of employment is average 55% from 4-year universities and 41% from 2-year colleges. In conclusion, the development of beauty industry is originated only from the training personnel with professional knowledge and beauty-related education institutes play a pivotal role in their training. To accomplish the quality of training, we need to centralize our training curriculum, vitalize the beauty market to employ graduated students, connects education with beauty industry into the better and stabler job market. This study suggest that we need multilateral policy to set up and backup.
강수경 ( Soo Kyung Kang ) 한국미용학회 2011 한국미용학회지 Vol.17 No.3
In this study, a meta-analysis was made of 23 papers on skin conditions-related variables. The followings show the results. First, 13(56.65%) out of 23 papers were masters` theses; 13(56.5%) were conducted on university students; 20(87.05%) on women. Second, in 13(56.5%) out of 23 papers the skin test was performed by the use of equipments; in 10(43.5%) it was performed by subjective evaluation. The number of subjects was significantly more in subjective evaluation than in mechanical evaluation. Mechanical evaluation was adopted not only in all the doctoral theses but in 9(69.2%) out of 13 theses published in 2006 and afterwards. Third, in relation to independent variables, 18 theses (78.3%) adopted the eating habits; 14(60.9%) favorite foods; 12(52.2%) exercise; 10(43.5%) skincare habits and stress; 9(39.1%) slumbers. Resultantly, ultra violet 4(100%), in 17 theses (94.4%) eating habits showed the highest significance level; in 8(80.0%) skin care habits; in 10(71.4%) favorite foods; in 8(66.7%) exercise; in 6(60.0%) stress; in 5(55.6%) slumbers. Fourth, in eating habits, Vitamin, regular mealtime and water ingestion were adopted as positive factors for skin conditions. On the other hand, heavy meals, spicy, salt, instant and high-calorie foods were adopted as negative factors for skin conditions. Eight hours of slumber and regular exercise were adopted as positive factors, but ultra violet, stress, excessive coffee intake, smoking and drinking were adopted as negative factors. In relation to skin care habits, specialists` care, right care and regular massages were adopted as positive factors.
피부미용 산업체 유형에 따른 현장 직무 중요도와 선행학습 필요도 차이
강수경 ( Soo Kyung Kang ) 한국미용학회 2015 한국미용학회지 Vol.21 No.6
The primary purpose of this study is to examine and analyze the difference between major duties in practical fields and on-the-job training conducted at school, which is required prior to field placement among skin care therapists who engage in salon esthetics and medical therapists. The study has found that lymph drainage of special treatment as part of major duties in practical field showed relative importance in salon esthetics while management of equipment showed importance in medical esthetics. When it comes to on-the-job trainings conducted at school prior to field placement, salon esthetics has had significantly higher necessities of prerequisite learning on information gathering and marketing, customer management, financial management, facilities management, product management, customer interface and consultation, skin type analysis, understanding customer requirements, planning and scheduling, preparation of customer charts, product advice, body shape management, lymph drainage, esthetic acupuncture meridians, skin trouble management, spa therapy, aroma therapy, Ayurveda, and equipment management than medical esthetics.
Levanoligosaccharide의 장내미생물의 생육에 미치는 생리효과
강수경(Soo-Kyung Kang),박수제(Soo-Je Park),이재동(Jae-Dong Lee),이태호(Tae-Ho Lee) 한국식품영양과학회 2000 한국식품영양과학회지 Vol.29 No.1
Streptomyces sp. 366L로부터 분비되는 levanase의 반응생성물인 levanheptaose의 각종 장내 미생물들에 대한 생육인자로서의 영향을 조사하였다. Levanase를 부분정제하여 기질과 반응시킨 뒤 반응산물을 ethanol 침전법에 의해 고분자물질를 제거하고 Sephadex G-10 column chromatography를 거쳐 levanheptaose를 정제하여 탄소원으로 사용하였다. In vitro 실험에서 0.5% levanheptaose를 탄소원으로 하여 glucose와 비교 분석한 결과, levanheptaose가 Bifidobacterium adolescentis, Lactobacillus acidophilis, Eubacterium limosum의 생육에 효율적으로 이용됨을 알 수 있었다. 반면 Clostridium perfringens, Staphylococcus aureus, E. coli 등과 같은 유해한 균에는 levanheptaose의 이용효율이 낮게 나타났다. 쥐를 이용한 in vivo 실험에서는 levanheptaose를 탄소원으로 하였을때 장내 Bifidobacteria의 수와 butyrate의 양 및 β-fructosidase의 활성은 현저하게 증가하여 생육촉진효과가 우수함을 보여주었다. The effect of levanheptaose produced by levanase from Streptomyces sp. 366L on principle intestinal microflora was investigated. The reaction product, levanheptaose, was used as a carbon source for various intestinal microflora. As a results, Bifidobacterium adolescentis, Lactobacillus acidophilus, and Eubacterium limosum grew effectively in the in vitro experiment, whereas Clostridium perfringens, E. coli, and Staphylococcus aureus did not. Therefore levanheptaose seems to promote selectively the growth of B. adolescentis and L. acidophilus. In the in vivo experiment, the effect of levanheptaose on the growth of intestinal microflora, β-fructosidase activity, pH, and butyrate concentration were examined in rats. Apparently, the number of fecal Bifidobacteria, the amount of butyrate, and β-fructosidase activity were increased, whereas total aerobes and pH were reduced in rats fed by levanheptaose diets, compared with those of control diets. We concluded that those effects may be beneficial in improving gastrointestinal health.