FC 1-4 : A survey of attitudes, knowledge, and behavior regarding sun exposure and sunscreen use

( Sih Yeok Jang ),( Hyeong Ho Ryu ),( Eun Jung Hwang ),( Hyun Sun Park ),( So Yun Cho ),( Hyun Sun Yoon ) 대한피부과학회 2013 대한피부과학회 학술발표대회집 Vol.65 No.2

Background: Although sunscreen is used as a primary strategy to prevent sunburn, photoaging and skin cancer, only a few people regularly use sunscreen. Objectives: To investigate the awareness of effects of sunlight, the extent of sun exposure, and the behaviors about sunscreen uses in Korean. Methods: A questionnaire was administered 255 adult patients visited Dermatology Department at Seoul National University Boramae Hospital. It included questions about the awareness of benefit or harm of sunlight, perceived and actual extent of sun exposure, the use of sun-protective methods including sunscreen. Results: Sun exposure was chosen as the major cause of dyschromia (61.2%), skin cancer (62.8%) and wrinkle (28.6%). Respondents were likely to underestimate the extent of sun exposure. On average, quite a few respondents stated that they were exposed to sunlight more than one hour per day (23.1% on weekdays, 53.4% on weekends). But, only 8.7% thought that their sun exposures were problematic and 62.2% of respondents considered moderate sunlight exposure good for health. People`s sun protective behaviors were inadequate: only 30.8% used sunscreen regularly; 18.4% have never used sunscreen. SPF was the most important factor choosing sunscreen and 86.0% used sunscreen labeled SPF over 30. In contrast, only 40.3% used PA+++ sunscreen. Conclusion: Despite a fairly good knowledge about harmful effects of sunlight, people underestimated the risks of their sun exposure and behaviors were suboptimal.

Comparison of Melanoma Subtypes among Korean Patients by Morphologic Features and Ultraviolet Exposure

( Hong Sun Jang ),( Jee Hung Kim ),( Kyu Hyun Park ),( Jae Seok Lee ),( Jung Min Bae ),( Byung Ho Oh ),( Sun Young Rha ),( Mi Ryung Roh ),( Kee Yang Chung ) 대한피부과학회 2014 Annals of Dermatology Vol.26 No.4

Background: Genetic alterations have been identified in melanomas according to different levels of sun exposure. Whereas the conventional morphology-based classification provides a clue for tumor growth and prognosis, the new classification by genetic alterations offers a basis for targeted therapy. Objective: The purpose of this study is to demonstrate the biological behavior of melanoma subtypes and compare the two classifications in the Korean population. Methods: A retrospective chart review was performed on patients found to have malignant melanoma in Severance Hospital from 2005 to 2012. Age, sex, location of the tumor, histologic subtype, tumor depth, ulceration, lymph node invasion, visceral organ metastasis, and overall survival were evaluated. Results: Of the 206 cases, the most common type was acral melanoma (n=94, 45.6%), followed by nonchronic sun damage-induced melanoma (n=43, 20.9%), and mucosal melanoma (n=40, 19.4%). Twenty-one patients (10.2%) had the chronic sun-damaged type, whereas eight patients (3.9%) had tumors of unknown primary origin. Lentigo maligna melanoma was newly classified as the chronic sun-damaged type, and acral lentiginous melanoma as the acral type. More than half of the superficial spreading melanomas were newly grouped as nonchronic sun-damaged melanomas, whereas nodular melanoma was rather evenly distributed. Conclusion: The distribution of melanomas was largely similar in both the morphology-based and sun exposure-based classifications, and in both classifications, mucosal melanoma had the worst 5-year survival owing to its tumor thickness and advanced stage at the time of diagnosis. (Ann Dermatol 26(4) 485~490, 2014)

Fabrication and thermal optimization of LED solar cell simulator

Sun Ho Jang,신무환 한국물리학회 2010 Current Applied Physics Vol.10 No.3

This paper describes fabrication and characterization of a solar simulator which utilizes light emitting diode (LED) as a lighting source. A solar cell powered by the LED simulator with 0.9 sun exhibited about 80% of the output power generated by the conventional Xenon lamp simulator with 1 sun. Measured temperatures for the surface of lens and fin of heat sink were in good agreement with the calculated values. Detailed thermal performance of the LED lighting was projected using a computational fluid dynamics (CFD) method for the various design parameters such as layout of the LED package and number of fins of the heat sink. It was demonstrated that the junction temperature of the LED module can be significantly decreased by optimization of the parameters.

성인에서 발생한 발진성 가성 혈관종증

서상희 ( Sang Hee Seo ),장호선 ( Ho Sun Jang ),목혜수 ( Hye Soo Mok ),김성준 ( Sung Jun Kim ),김병수 ( Byung Soo Kim ),김문범 ( Moon Bum Kim ),오창근 ( Chang Keun Oh ),권경술 ( Kyung Sool Kwon ) 대한피부과학회 2007 대한피부과학회지 Vol.45 No.8

Background: Eruptive pseudoangiomatosis (EPA) is a rare, benign, spontaneously regressing childhood exanthem. It is characterized by the sudden onset of several bright red angioma-like papules surrounded by pale halos with a distinct histopathology from true angiomas. Objective: This study was performed to evaluate the clinical and histopathologic characteristics of EPA occuring in adults. Methods: Ten adult patients who visited Pusan National University Hospital and Mok Hye-SooㆍJang Ho-Sun Dermatology Clinic from March 2005 to September 2006 were evaluated. We prospectively evaluated the sex, age, onset season, past medical history including immunosuppressive abnormalities, systemic disorders and other diseases including allergies. We also investigated the relations of mosquito biting, patients` occupations and outdoor activities to occurrence of EPA. In addition, simultaneous occurrence in family members, the clinical, histopathologic, laboratory findings, disease courses and responses to treatment were evaluated. Based on medical records, photographs and pathologic slides, we retrospectively diagnosed another 20 EPA patients suspected as insect bite from October 2003 to March 2005. The same questions were inquired as for the 10 patients who prospectively underwent evaluation. Results: In the study, female predominance (76.7%) was observed and the average age of onset was 54.2 years. Interestingly, there was no child patient during the period of study. Multiple, 2∼5 mm sized, red angiomatous papules surrounded by pale halos occurred on exposed areas such as the arms (86.7%), legs (50%), and face (46.7%), although it could also occur to a non-exposed area. EPA occuring in adults usually appeared in summer (80%). The mean disease duration was 3.4 weeks. Although EPA spontaneously regressed, it had the potential of recurrence (46.7%). Histopathologic findings showed dilated dermal blood vessels without the evidence of increase in numbers, and perivascular lymphocytes infiltration. Inside the lumen of dermal blood vessels, plump endothelial cells were found. Conclusion: EPA occuring in adults usually happened to exposed sites in summer, so it can be misdiagnosed as insect bite. We suggest that dermatologists should be concerned about EPA in adults and conduct further investigation to have a better understanding of the disease. (Korean J Dermatol 2007;45(8):797∼803)

스포츠 소비자의 가치관과 스포츠 선호종목의 관계

장호중,김지은,김정묵,정철규,박순문 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.20 No.1

The purpose of this study is to examine the relationship between The Relationship between and Sports Preference Event and Value of Sports consumers. To achieve this purpose, the subjects were selected by cluster random sampling of adults in sports facilities, in Seoul, in 2001 at present. There were 414 male, 360 female used for the analysis. The total was 774. Data were collected by employing a questionnaire. The variables of this analysis were conducted value, sports items, demographic characteristics. The survey questionnaires were used to collect the data. The questionnaire for the formalization factor of a Value of Sports consumers by Kim(1996). The collected data analyzed statistic program SPSS Windows 10.0 Version. The statistical analysis are descriptive statistics analysis, factor analysis, one-way ANOVA, crosstabs, discriminant analysis. Through this process, the study has reached the following conclusions. First, value of sport consumers, sports event, are partly different by demographic characteristics. Second, Value of Sports consumers are influence of Sports Preference Event.

Flavobacterium meningosepticum에 의한 균혈증 1예

장성원,유진홍,진승원,김선우,김연식,박순민,이대훈,최민호,최주연,신완식,강문원,강지민 대한화학요법학회 1997 대한화학요법학회지 Vol.15 No.1

1996년 6월 카톨릭대학교 부천성가병원에 뇌경색으로 입원했던 61세 남자 환자의 혈액에서 Flavobacterium meningosepticum을 분리하였다. 환자는 폐렴을 동반한 패혈증의 예로 ceftriaxone과 metronidazole을 투여하였으나 입원 48시간만에 사망하였다. Flabovacterium meningosepticum is a rae cause of nosocomial infection which shows multi-drug resistance. It mainly invades patients with impaired immunity. Recently, we experienced a case of F. meningosepticum bacteremia in a patient with chronic debilitated state owing to stroke. The clinical progress was so rapid that he died within 48 hours. Blood culture revealed F. meningosepticum which showed characteristic yellow colony in blood agar plate.

地方政府의 環境政策과 市民參與에 관한 探索 : focus on the NGO NGO 參與形態를 中心으로

김장기,권혁순,김호식 三陟大學校 2000 論文集 Vol.33 No.3

저질에 따른 바지락(Ruditapes philippinarum)의 염분내성

한경호,오성현,장선익,이우범,이원교 國立 麗水大學校 環境問題硏究所 2000 環境硏究論文集 Vol.3 No.-

Salinity tolerance of the manila clam, Ruditapes philippinarum in Gang-jin Bay on the from May to June was investigated in two different types of sedimentary composition. In the experimental groups of sandy-mud, the survival and infiltration rate were good at 20~40ppt, but all the manila clam, Ruditapes philippinarum died at more than 50ppt and less than 10ppt before the experiment finish. In the experimental groups of muddy, the survival and infiltration rate were the best at 25~35ppt and then 20ppt, 40ppt. All the manila clam, Ruditapes philippinarum died at more than 45ppt and less than 15ppt. The survival rate in the experimental groups of sandy-mud was higher than muddy ones, and the infiltration rate was the highest at 20~35ppt in the both of two experimental groups. In the sand-mud, the manila clam, Ruditapes philippinarum infiltrated half of their shells but in the muddy, they infiltrated more then half of their shells.

비상장기업의 가치평가에 관한 연구 : 세법의 규정을 중심으로

전철호,이장순 한밭대학교 산업과학기술연구소 1997 논문집 Vol.4 No.-

Recently, The maximization of enterprise value or stockholder's wealth is established as the objective of enterprise because the concept of goal of profit maximization' as a company's objective has a dilemma. In the mordern enterprise theory the study of financial management is made progress on the basis of the maximization of enterprise value theory. In other to achieve enterprise value maximization, first of all the enterprise valuation model is established. The valuation of listed enterprise is very easy because the stock maket is existed. But the valuation of unlisted enterprise is very difficult. The valuation of unlisted enterprise is nececery in financial management because we achieve the objective of enterprise value maximization. There are many method to evaluate unlisted enterprise value. In this paper I studied unlisted enterprise valuation method centering on korean tax in many method. Of course, there are many difference between unlisted enterprise valuation method centering on tax and that centering on financial management. But I convinced that this study will be contributed to develope unlisted enterprise valuation method centering on financial management is developed.

원격 공동 실험에 관한 연구

李將虎,金東旭,張禪 弘益大學校 科學技術硏究所 2005 科學技術硏究論文集 Vol.16 No.-

The third wave has effected a huge change not only in society but also in the construction industry. In the construction industry, various digital and construction technologies have merged and developed according to the third wave. Such examples include integrated construction system, electronic document system, blueprint management system, and simulation system. As construction structures are developed, they acquire more functions and become bigger and more complicated. Hence, developing these construction core technology is crucial for international competitiveness of the national construction industry. However, it is difficult to build and use a related big experimental facility because it is impossible for one organization to build such facility due to its huge cost. This paper describes the design of effective KOCEDgrid system and shows the implementation of a prototype called the Mini-MOST experiment.