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.

한국인에서 일광노출과 자외선차단제에 대한 인식과 사용 행태 연구

장시혁 ( Si Hyeok Jang ),박현선 ( Hyun Sun Park ),조소연 ( So Yun Cho ),윤현선 ( Hyun Sun Yoon ) 대한피부과학회 2015 대한피부과학회지 Vol.53 No.1

Background: Although sunscreen is used as a primary strategy for the prevention of sunburn, photoaging, and skincancer, few people regularly use sunscreen. Objective: To investigate awareness regarding the effects of sunlight, the extent of sun exposure, and sunscreen usebehaviors in Korean subjects. Methods: A questionnaire was administered to 467 adult patients who visited the Dermatology Department at SeoulNational University Boramae Hospital. The questionnaire covered demographic characteristics, causes of wrinkles,sunspots, and skin cancer, awareness of the harmful effects of sun exposure, perceived and actual extent of sunexposure, and the use of sun-protective methods including sunscreen. Results: Sun exposure was selected as the major cause of age spots (60.6%), skin cancer (60.9%), and wrinkles(25.9%). Respondents were likely to underestimate the extent of sun exposure. On average, quite a few respondentsstated that they were exposed to sunlight for more than one hour per day (22.7% on weekdays, 52.4% onweekends). However, only 9.4% of respondents thought that their sun exposure was problematic and 62.7% ofrespondents considered moderate sunlight exposure healthy. Respondents`` sun-protective behaviors were inadequate:only 29.8% used sunscreen regularly, and 16.5% have never used sunscreen. SPF was the most important factor inchoosing sunscreen, and 83.3% used a sunscreen with a labeled SPF over 30. By contrast, only 34.6% ofrespondents used PA+++ sunscreen. Conclusion: Despite fairly good knowledge regarding the harmful effects of sunlight, subjects underestimated therisks of their sun exposure and sun-protective behaviors were suboptimal. Education on the risk of UV exposure andeffects of sunscreen is still needed. (Korean J Dermatol 2015;53(1):16∼22)

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.

The Application of Everyday Behavioral Pattern to Gesture Interface

Jang,Sun Hee,Lee,Kyung Won (사)한국디지털디자인협의회 2006 (사)한국디지털디자인협의회 conference Vol.2006 No.2

Neo-Victorian Novel and Empowerment: A. S. Byatt’s The Children's Book

( Jang¸ Hye-sun ) 동국대학교 영어권문화연구소 2015 영어권문화연구 Vol.8 No.2

This essay aims to explore A. S. Byatt’s neo-Victorian novel in terms of her genealogical analysis of totalizing power focusing on how it is manipulated and deployed to form a dominant archive of knowledge. In doing so, it also examines how history can be used as genealogy to question and re-examine ideological assumptions about the Victorian era in The Children's Book (2009). The essay brings together these overlapping themes of power and genealogy to show how the neo-Victorian novel provides strategies for empowerment and resistance to totalizing pressures.

Effects of Chitosan Intake on Bone Mass, Bone Related Metabolic Markers in Ovariectomized Rats

Jang, Ye Sun,Lee, Myoung Hee 제주관광대학 2005 論文集 Vol.11 No.-

In the present study we examined both the etiology of bone loss induced by dietary chitosan and the preventive effect of vitamin C supplementation. Rats were OVX and maintained on one of the following diets for 4 weeks: 10% cellulose (CE), 10% chitosan (CH) and 10% chitosan with sodium ascorbate (CHVC). Vitamin C supplementation to CH caused an increase in Ca and P contents of femurs as well as BMD of L4, with a decrease in urinary Ca excretion. There was no significant difference in intestinal Ca absorption between CH and CE, whereas CH intake significantly reduced intestinal P absorption. CH caused a significant reduction in BMD and stiffness of femurs as well as fourth lumbar vertebrae (L4). The bone loss in CH rats was accompanied with an increase in urinary Ca excretion and a decrease in serum Ca as well as a significant increment in serum PTH and 1,25(OH)2D3. These results indicates that dietary chitosan with low Ca intake possibly induces the loss of bone mass by enhacing urinary Ca excretion, rather than by inhibiting Ca absorption, and that vitamin C supplementation could prevent bone loss caused by chitosan through the increment of retained Ca followed by suppression of urinary Ca excretion.

대충 매체를 통한 여자 연예인 헤어스타일 연구

김선혜 ( Sun-hye Kim ),장성혁 ( Seng-hyek Jang ),진용미 ( Yong-mi Jin ) 한국미용예술경영학회 2012 미용예술경영연구 Vol.6 No.1

In recent years, with the rapid changes of technology life style makes it possible to share same information at the same time individually also makes it possible for people to build their own space to express their notion to others, with the development of the Internet, female celebrities' outfit in movie, advertisement and drama has started to influence people's style, people now have more selections for making their appearance, this phenomenon has settled as trend, according to it, this study aims to analyse accupying fashion image and women’s favorite hair style among female celebrities. This study focuses on selecting the most familier seven images within public and sampling female celebrities having different images to investigate in the study, also international academic journals, fashion magazines, online informations is used as research resources, with the researching for the relationship celebrities hair style by categorizing fashion style images, It has found that not only public creates their own style with desire for imitating celebrities as the media develops but also the style public adopting must satisfy aesthetic consciousness and value people holding in society, the further studies for delivering service to satisfy customers' desired style not only for styling their hair from medea is required

Floristic study of Jang-do (Isl.) in Korea

Son, Hyun-Deok,Gwon, Soon-Gyo,Jang, Jeong-Won,Sun, Eun-Mi,Kim, Byeol-Ah,Im, Hyoung-Tak The National Institute of Biological Resources 2013 Journal of species research Vol.2 No.2

We investigated the flora of Jang-do (Isl.), an island of the Heuksan archipelago, located in Heuksan-myeon, Shinan-gun, Jeollanam-do and discussed the remarkable plants found there. Thirteen-field trips (total 27 days) were completed from May of 2004 to May of 2013. As a result, we identified the distribution of 423 taxa in Jang-do (Isl.), comprising 104 families, 285 genera, 335 species, 78 varieties and 10 forms. There are a total of 95 taxa of floristic regional indicator plants. The floristic regional indicators are as follows; four taxa of level V such as Impatiens furcillata, four taxa of level IV such as Hosta yingeri, 14 taxa of level III such as Ophioglossum vulgatum, 5 taxa of level II, and 58 taxa of level I. In addition 10 red data plants, 2 vulnerable species (VU) including Calanthe striata for. sieboldii, and 4 least concern species (LC) like Ardisia crenata, 2 not evaluated species (NE) such as Hosta yingeri, were found in the investigated area. An unrecorded species, Fragaria (Rosaceae), was found in a forest of Jang-do (Isl.) for the first time in Korea.

Duplication or deletion of chromosome 17p11.2-p12 in CMT1 and HNPP peripheral neuropathy patients

Kim, Hyo-Sun,Jang, Young-Eun,Chung, Ki-Wha 公州大學校 基礎科學硏究所 2003 自然科學硏究 Vol.10 No.-

CMT와 HNPP 말초신경증은 가장 흔하게 발병하는 운동 및 감각 말초신경계의 선천성 질환이다. CMT1과 HNPP의 유전적 원인으로는 염색체 17p11.2-p12의 1.5 Mb 지역의 중복과 결실이 각각 50%이상과 70% 이상을 차지하는 것으로 알려졌다. 본 연구에서 한국인 CMT1 및 HNPP 환자를 대상으로 중복 및 결실을 조사하였는데, 31 CMT1 가족 중 13 가족에서 중복을 보였으며 (42%), 24 HNPP 가족 중 19 가족에서 결실을 보였다 (79%). 17p11.2-p12 중복을 보이는 CMT1A 환자가 HNPP 결실환자보다 발병 연령, 발병 기간, 근육 이양성 및 족 기형성에서 훨씬 심한 증상을 보였다. Charcot-Marie-Tooth disease (CMT) and hereditary neuropathy with liability to pressure palsies (HNPP) are most common inherited motor and sensory peripheral neuropathies. The majority of CMT1 patients have a 1.5 Mb duplication in chromosome 17p11.2 while most HNPP patients have a deletion of the same region. In the analysis of Korean CMT1 and HNPP patients, each HNPP deletion and CMT1A duplication was observed from 79% (19 families) among 24 HNPP families and 42% (13 families) among 31 CMT1 families. CMT1A duplication patients showed more severe clinical symptoms than HNPP deletion patients, when we examined oneset age, disease duration, muscular atrophy, foot deformity and scoliosis.