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다공성 실리콘위에 rf-스퍼터링법으로 증착된 ITO 박막의 구조적 물리적 특성
홍광표,권덕렬,박현아,이종무 대한금속재료학회 2003 대한금속·재료학회지 Vol.41 No.6
Transparent conducting indium tin oxide (ITO) films are deposited by rf-sputtering at a constant power of 400W in Ar atmosphere on the porous silicon (PS) layers anodized on p-type (100) Si wafers. At three successive stages of deposition for 10, 20 and 30 min. respectively, the growth of ITO on PS is thoroughly investigated by AFM, SEM and XRD techniques. The features of growth on other substrates like single crystal p-type (100) silicon, quartz and glass are also taken into consideration. The influence of ITO microstructure on the porous silicon interface is correlated with the electrical and luminescent behavior of the resulting heterojunction diode structure.
예비유아교사의 음악적 자아개념 및 음악적 개념에 대한 실제이해와 음악교수 효능감과의 관계
최정아(Choi Jeong Ah),권수현(Kwon Su Hyun),유주연(Ryu Joo-yeon) 한국육아지원학회 2014 육아지원연구 Vol.9 No.2
본 연구는 예비유아교사의 음악적 자아개념 및 음악적 개념에 대한 실제이해와 음악교수 효능감의 수준을 알아보고, 이들 간의 관련성과 영향력을 살펴보는 데에 목적이 있다. 연구 대상은 경상남도에 위치한 3, 4년제 대학의 유아교육과 학생 201명이었으며, 연구 도구는 Svengalis(1978)가 개발하고 Philips(2002)가 수정한 ‘음악적 자아개념 척도’, Kim, Lee, Kwon과 Park(2011)이 개발한 '유아교사의 음악적 개념 실제이해 측정 도구’, Riggs와 Enochs(1990)가 개발하고 방은영, 박찬옥(2005)이 수정한 ‘음악교수 효능감 검사도구’가 사용되었다. 연구결과를 살펴보면 첫째, 예비유아교사의 음악적 자아개 념과 음악적 개념에 대한 실제이해는 보통 수준인 것으로 나타났으며, 음악교수 효능감은 비교적 높은 것으로 나타났다. 둘째, 예비유아교사의 음악적 자아개념, 음악적 개념에 대한 실제이해, 음악교수 효능 감은 대체로 유의한 정적 상관을 보였다. 셋째, 예비유아교사의 음악적 자아개념과 음악적 개념에 대한 실제이해는 예비유아교사의 음악교수 효능감 전체에 영향력을 미치고 있었으며, 하위요인 중 음악교수 능력에 대한 신념은 예비유아교사의 음악적 자아개념이 더 큰 영향력을 미쳤고, 결과에 대한 기대감은 음악적 개념에 대한 실제이해만이 영향력 있는 요인으로 나타났다. This study aimed to (1) examine early childhood pre-service teachers’ self-concept in music, the actual level of understanding of musical content knowledge and music teaching efficacy, and (2) investigate the relationships and influence among them. The participants consisted of 201 undergraduate students, majoring in early childhood education at colleges in Gyeongnam, Korea. The measurements used in this study were Self-Concept in Music Scale (SCIM), the scale of Understanding of Musical Content Knowledge, and Music Teaching Efficacy Belief Instrument (MTEBI). The results of this study are as follows. First, the mean score of early childhood pre-service teachers’ self-concept in Music and actual understanding of musical content knowledge were about the average, besides their music teaching efficacy was higher than the average. Second, there was a positive relationship among early childhood pre-service teachers’ self-concept in music and music teaching efficacy, and the actual level of understanding of musical content knowledge. Third, early childhood pre-service teachers’ music teaching efficacy exerted a statistically significant influence on the self-concept in music and the actual level of understanding of musical content knowledge. Among the variables of early childhood pre-service teachers’ music teaching efficacy, 'the belief of music teaching ability' and 'the expectation of the results', pre-service teachers’ self-concept in music had more influence on 'the beliefs of music teaching ability' and actual understanding of musical content knowledge was the only influential factor on 'the expectation of the results'.
Kwon Yong Shik,Park Sun Hyo,Kim Hyun Jung,Lee Ji Yeon,Hyun Mi-ri,Kim Hyun ah,박재석 대한의학회 2020 Journal of Korean medical science Vol.35 No.26
There is still a paucity of studies on real-world outcome of screening clinic for hospital protection from coronavirus disease 2019 (COVID-19). As the number of COVID-19 cases was growing rapidly in Daegu, Korea, we started operating an active screening clinic outside the hospital premises. Over two weeks, 2,087 patients were screened using real- time reverse transcriptase polymerase chain reaction testing for severe acute respiratory syndrome coronavirus 2, with 42 confirmed cases. Before the screening clinic period, an average of 36 beds (maximum 67 beds) per day were closed due to unrecognized COVID-19 patients entering the hospital. In contrast, after the screening clinic operated well, only one event of closing emergency room (25 beds) occurred due to a confirmed COVID-19 case of asymptomatic patient. We report the operational process of screening clinic for COVID-19 and its effectiveness in maintaining the function of tertiary hospitals.
Kwon Hyun Hee,Kim Hye In,Kwon Ki Tae,Hwang Soyoon,Kim Shin-Woo,Kim Yoonjung,Kim Hyun ah,Hyun Miri,Hong Hyo-Lim,Kim Min Jung,Hur Jian,Hong Kyung Soo 대한감염학회 2022 Infection and Chemotherapy Vol.54 No.2
Background Securing an available healthcare workforce is critical to respond to coronavirus disease 2019 (COVID-19); however, research investigating Korea’s COVID-19 staffing response is rare. To present the fundamental data of healthcare staff in response to the surge in COVID-19 cases, we investigated the healthcare workforce response in Daegu, South Korea, which experienced the first largest outbreak of COVID-19 outside of China. Materials and Methods In response to the COVID-19 outbreak, this retrospective cross-sectional study analyzed data on the scale and characteristics of healthcare workers (HCWs). Additionally, it analyzed the clinical and epidemiological characteristics of HCWs infected with COVID-19 in six major teaching hospitals (five tertiary and one secondary) in Daegu from January 19 to April 30, 2020. Results During this study period, only 1.3% (n = 611) of the total hospitalized patients (n = 48,807) were COVID-19 inpatients, but they occupied 6.0% (n = 303) of the total hospital beds (n = 5,056), and 23.7% (n = 3,471) of all HCWs (n = 14,651) worked in response to COVID-19. HCWs participating in COVID-19-related works comprised 50.6% (n = 1,203) of doctors (n = 2,379), 26.3% (n = 1,571) of nurses (n = 5,982), and 11.4% (n = 697) of other HCWs (n = 6,108). Only 0.3% (n = 51) of HCWs (n = 14,651) developed COVID-19 infections from community-acquired (66.7%) or hospital-acquired (29.4%). Nurses were affected predominantly (33.3%), followed by doctors (9.8%), caregivers (7.8%), radiographers (5.9%), and others (45.1%), including nurse aides and administrative, facility maintenance, telephone appointment centers, and convenience store staff. All HCWs infected with COVID-19 recovered completely. The 32.7% (n = 333) of individuals (n = 1,018) exposed to HCWs who had COVID-19 were quarantined, and only one case of secondary transmission among them occurred. Conclusion The COVID-19 pandemic has necessitated significant staffing and facility usage, which is disproportionate to the relatively low number of COVID-19 inpatients, imposing a substantial burden on healthcare resources. Therefore, beyond the current reimbursement level of the Korean National Health Insurance, a new type of rewarding system is needed to prepare hospitals for the emerging outbreaks of infectious diseases. Keeping HCWs safe from COVID-19 is crucial for maintaining the healthcare workforce during a sudden massive outbreak. Further studies are needed to determine the standards of required HCWs through detailed research on the working hours and intensity of HCWs responding to COVID-19.
Risk factors for recurrence of node-negative breast cancer with less than 1cm (초)
( Kwon Ji Hyun ),( Kim Yu Jung ),( Oh Do Youn ),( Park So Yeon ),( Kim Jee Hyun ),( Chie Eui Kyu ),( Kim Sung Won ),( Won Shik Han ),( Im Seock Ah ),( Kim In Ah ),( Kim Tae You ),( Park In Ae ),( Noh 대한내과학회 2008 대한내과학회 추계학술발표논문집 Vol.2008 No.-
소비와 수요의 측면에서 나타나는 국내 아파트의 일상의 소외에 관한 연구
권현아(Kwon, Hyun-Ah) 대한건축학회 2014 대한건축학회논문집 Vol.30 No.5
Korean Apartment shows the alienation of everyday life in the area of consumption and demand. This kind of alienation comes from the consumer capitalism and consumption culture and has relation to the commodification of urban housing. Therefore the purpose of this study is to show the way social structure impacts the everyday life of Korean apartment in the aspects as commodification for middle-class consumers, pre-construction sales·model houses, tools for personal assets and a status symbol, and stylized life·cultural equalization. And the fundamental contradiction is identified between the characteristics of the apartment as the homogeneous, economical and standardized product of mass production and the individual desire to be differentiated from others which is a prevalent phenomenon in the consumer society.
권현아(Kwon, Hyun-Ah) 대한건축학회 2014 대한건축학회논문집 Vol.30 No.2
The relationship between a building and its architectural images acquires new mechanism in modern architecture. Faked and manipulated images tend to be used regardless of their substances to get more influential effect for various purposes. The reading and interpretation of these images are also biased and subjective. In this context, this study explores the relationship between architectural images and their substances, and the meaning of this modern phenomenon based on the spread of modern architectural movement and its commodification. Therefore it shows the way architectural images reflect a certain desire and function as the potential media producing new substances.