외로움과 스마트폰 중독의 관계에서 정서조절곤란의 매개효과

최다혜,이혜진 한국인지행동치료학회 2017 인지행동치료 Vol.17 No.1

본 연구는 외로움이 스마트폰 중독에 미치는 영향을 알아보고, 정서조절의 어려움이 외로움과 스마트폰 중독의 관계를 매개하는지 알아보고자 하였다. 이를 위해 전국의 남녀 467명을 대상으로 한국판 UCLA 외로움 척도, 스마트폰 중독 척도, 한국판 정서조절곤란 척도를 실시하였다. 상관 분석 결과, 외로움은 스마트폰 중독 및 정서조절곤란의 6가지 요인들과 정적 상관이 있었고, 각 정서조절곤란 요인과 스마트폰 중독도 정적 상관이 있었다. 정서조절곤란 요인들이 외로움과 스마트폰 중독의 관계를 매개하는지 검증한 결과, 성별과 연령을 통제한 후에도 외로움은 스마트폰 중독을 유의하게 예측하였고, 정서조절곤란 요인들은 외로움과 스마트폰 중독의 관계를 완전매개하였다. 정서조절곤란 요인들 중에서는 ‘충동통제곤란’과 ‘정서에 대한 주의와 자각 부족’이 유의한 매개효과를 보였다. 이 같은 결과는 외로움이 정서조절곤란을 통해 스마트폰 중독에 영향을 미친다는 것을 의미하며, 특히 외로움과 같은 부정적 정서의 자각이나 통제의 어려움이 스마트폰 중독으로 이끄는 요인임을 시사한다. 이는 스마트폰 중독 개입 시 외로움만을 다루는 것보다 정서조절 능력을 향상시키는 것이 효과적일 수 있다는 임상적 함의를 가진다. 위의 결과를 바탕으로 본 연구의 의의와 제한점에 대해 논의하였다. The purpose of this study was to examine the mediating effects of emotion regulation difficulties on the relationship between loneliness and smartphone addiction. Participants were 467 men and women who completed the following questionnaires: Korean version of the Revised UCLA Loneliness Scale, Smartphone Addiction Scale, and Korean version of the Difficulties in Emotion Regulation Scale. Correlational analyses showed that loneliness was positively related to smartphone addiction as well as six factors of the emotion regulation difficulties, and each emotion regulation difficulties factor was positively associated with smartphone addiction. Multiple regression analyses revealed that emotion regulation difficulties completely mediated the relationship between loneliness and smartphone addiction, even after controlling for sex and age. Among factors of emotion regulation difficulties, ‘impulse control difficulties’ and ‘lack of attention to and awareness of emotions’ had significant mediating effects. These results suggest that loneliness affects smartphone addiction through emotion regulation difficulties, specifically by the lack of awareness or difficulties in controlling negative emotion such as loneliness. This finding has clinical implications such that intervention for smartphone addiction should focus not only on loneliness but also on emotion regulation difficulties. Further implications and limitations of these results are discussed.

Microneedles Combined with Hair Growth Factors

최다혜,조수진,이승준 한국고분자학회 2020 한국고분자학회 학술대회 연구논문 초록집 Vol.45 No.2

Characterization of Biodegradable Hyaluronic acid Microneedle Arrays (MNs) as their Aspect Ratios (ARs)

최다혜,민현규,이승준 한국공업화학회 2019 한국공업화학회 연구논문 초록집 Vol.2019 No.0

Microneedles arrays (MNs) have used for a variety of applications depending on their height. The aim of this study was to extensively investigate to understand the characteristics of MNs on the different aspect ratios (ARs). Thus, biodegradable MNs were constructed to height of less than 750um with an aspect ratio of 1.0, 2.0, and 3.0 both needle width and top, respectively. And then, their characteristics for ARs were examined by the morphology, mechanical strength, and skin permeability. The shape of the MNs manufactured was verified using SEM (Scanning Electron Microscope) and the skin permeability was measured using commercially available porcine skins. As a result, different mechanical properties of the aspect ratio were identified. Therefore, it may be desirable to design the MNS differently depending on the purpose of applying MNs.

Antioxidant and lipid-reducing Effects of Rosa rugosa Root Extract in 3T3-L1 cell

최다혜,한준희,홍민,이선엽,이수웅,권태형 한국식품과학회 2022 Food Science and Biotechnology Vol.31 No.1

Rosa rugosa root is traditionally known to be effective in the treatment of diabetes in Korea. R. rugosa root-specific compounds also show antioxidant effects, and could reduce lipid and fat accumulation, however, the underlying mechanism has not been clarified. In present study, the antioxidant and lipid-reducing effects of a 50% ethanol extract of R. rugosa (REE) were investigated differentiated mouse preadipocytes (3T3-L1 cells). REE showed strong radical scavenging activities and inhibitory effect of total lipid accumulation and triglyceride levels in differentiated 3T3-L1 cells. In addition, REE treatment reduced the mRNA and protein levels of adipogenesis and lipogenesis markers. This REE-promoted lipid reduction was caused by downregulation of peroxisome proliferator activated receptor gamma (PPARγ), CCAAT/enhancer binding protein alpha (C/EBPα), and sterol regulatory element binding protein1 (SREBP1c) and down regulation of ERK expression. Overall, these results demonstrate the potential of REE for development of a drug in the medical treatment of lipid-associated disorders.

생성 AI와 AI 창작물 저작권에 대한 사용자의 인식 연구: 사용자 그룹의 차이를 중심으로

최다혜,김정용,한다은,오창훈 국제문화기술진흥원 2023 The Journal of the Convergence on Culture Technolo Vol.9 No.1

Generative AI systems are expected to be more widely utilized. However, relatively little attention has been paid to understanding how users perceive and accept generative AI results. To identify strategies for increasing the future use of generative AI and prepare for potential issues, we organized design workshop for the general user group and the designer group. They created artwork utilizing Novel AI and semi-structured interview was followed to evaluate their attitudes toward generative AI and its copyright. Results indicate that the general public views generative AI positively, while the design-related group views it quite negatively. The participants expressed concerns as to the misuse the system, specifically related to copyright issues. People who are likely to utilize generative AI outcomes have insisted more strongly that copyrights should be their own. Those working in the design field highly evaluated the possibility of using generative AI in their work. Copyright perceptions were not significantly influenced by users' satisfaction or their level of involvement in the creation process. We discuss design implications for interfaces using generative AI based on the findings. 생성 AI의 시스템의 발전과 다양화로 인해 해당 기술의 결과물의 활용도가 높아질 것으로 예상된다. 이에 생성 AI를 활용하여 창작한 결과물을 어떻게 받아들여야 할지에 대한 사용자의 인식과 태도에 대한 이해가 중요하다. 본 연구는 생성 AI의 추후 활용도를 높이고 발생 가능한 논란에 대비하기 위해 사용자 조사를 진행하였다. 일반 사용자 집단과 디자인 관계자 집단이 참여하였으며, 사용자 관점에서 생성 AI에 대한 태도와 생성 AI를 활용한 창작물의 저작권 인식을 주제로 디자인 워크샵을 진행하였다. 정성 분석 결과, 일반인 집단은 전반적으로 생성 AI 사용에 대해 긍정적인 반면, 디자인 관계자 집단은 부정적인 인식을 갖는 것으로 나타났다. 사용자들은 생성 AI의 결과물의 표절과 도용, 저작권 보호 법제화의 현실 가능성에 대한 우려를 표출했다. 한편, 생성 AI 결과물을 활용할 가능성이 높은 그룹일수록 창작자의 저작권 소유를 주장하였으며, 직장인 그룹이 생성 AI의 실무 활용 가능성을 더 높게 평가하였다. 생성 AI 결과물의 개별 만족도와 체감 관여도는 저작권에 직결되는 영향을 주지 않았다.

다양한 열차 종별 운행 시 경합에 의한 LOS 연구

최다혜,이호준,김용성,황선찬,김형준 한국철도학회 2020 한국철도학회 학술발표대회논문집 Vol.2020 No.11

The Status of Reviews by the Korea Communications Standards Commission and Directions for Improvement

최다혜,지성우 한국정치커뮤니케이션학회 2014 정치커뮤니케이션 연구 Vol.0 No.32

Ⅰ. IntroductionⅡ. The history of the Korea Communications Standards Commission and the statusof its reviews1. The history of the Korea Communications Standards Commission2. The status of reviews by the Korea Communications Standards Commission. Ⅲ. Norms relating to the review of communications1. The Act on the Establishment and Operation of the Broadcasting andCommunications Commission2. The Act on the Promotion of Information Network Use and the Protection ofInformation3. The unconstitutionality of the current lawⅣ. The unconstitutionality of the current law1. The violation of the principle of ‘clarity’2. The prohibition of inclusive delegated legislation and the violation of theprinciple of statutory reservation3. The constitutional evaluation of the rectification request system. V. Conclusion

간호대학생의 문제음주에 영향을 미치는 요인

최다혜,김윤희 한국자료분석학회 2016 Journal of the Korean Data Analysis Society Vol.18 No.4

The purpose of this study was to investigate the factors influencing problem drinking among nursing college students for developing prevention program of problem drinking. Data were collected from 276 nursing college students by using a questionnaire and analyzed by chi-square test, t-test, hierarchical multiple logistic regression using SPSS WIN. 46.0% of subjects had problem drinking. In individual factors, the factors related to the problem thinking were grade (OR; 0.384, 95% CI: 0.165-0.895), residental type (OR; 1.861, 95% CI: 0.135-3.453), age at starting drinking (OR; 0.853, 95% CI: 0.734-0.990), alcohol expectancy (OR; 1.049, 95 CI: 1.013-1.086) and drinking refusal self-efficacy (OR; 0.936, 95% CI: 0.914-0.959). In family factors and environmental factors, there were no factors related to problem drinking. In conclusion, the results from this study indicated a need to develop prevention program of problem drinking to decrease alcohol expectancy and to increase drinking refusal self-efficacy considering these affecting factors of problem drinking. 본 연구는 간호대학생의 문제음주에 영향을 미치는 요인을 개인요인, 가족요인, 환경요인의 측면에서 살펴보고자 수행되었다. 연구대상자는 대학생 276명으로 자료는 2015년 3월부터 4월까지 수집되었으며 수집된 자료는 SPSS 21.0을 이용하여 카이제곱검정, t-검정과 위계적 로지스틱 회귀분석으로 분석하였다. 본 연구대상자의 46.0%가 문제음주자였으며, 개인요인에서는 학년, 거주형태, 첫 음주시작 연령, 음주결과기대, 음주거절 효능감이 문제음주에 영향을 미쳤으며, 가족요인과 환경요인에서는 유의하게 영향을 미치는 변인이 확인되지 않았다. 1학년에 비하여 2학년(OR;0.384, 95% CI: 0.165-0.895)과 3학년(OR;0.242, 95% CI: 0.104-0.561)의 문제음주의 위험이 낮았고, 가족과 따로 거주하는 경우에서 문제음주의 위험이 높았고(OR;1.861, 95% CI: 0.135-3.453), 첫 음주시작 연령이 높을수록 문제음주 위험이 낮았고(OR;0.853, 95% CI: 0.734-0.990), 음주결과 기대가 높을수록 문제음주 위험이 높았으며(OR;1.049, 95 CI: 1.013-1.086), 음주거절 효능감이 높을수록 문제음주 위험이 낮았다(OR;0.936, 95% CI: 0.914-0.959). 따라서 음주결과기대를 낮추고 음주거절 효능감을 증진시키는 문제음주 예방교육 프로그램을 개발하여 적용함으로써 간호대학생의 문제음주에 대한 체계적인 관리가 요구된다.

결합조직형성 법랑모세포종의 방사선학적 소견 : 증례보고 3례

최다혜,허경회,문제운,이원진,허민석,이삼선,최순철,박관수,Choi Da-Hye,Huh Kyung-Hoe,Moon Je-Woon,Yi Won-Jin,Heo Min-Suk,Lee Sam-Sun,Choi Soon-Chul,Park Kwan-Soo 대한영상치의학회 2006 Imaging Science in Dentistry Vol.36 No.1

Desmoplastic ameloblastoma is a rare histologic variant of ameloblastoma. It shows important differences in anatomic distribution, histologic appearance, and radiographic findings compared with the general type of ameloblastoma. It is histologically characterized by an abundance of densely collagenous stroma and radiographically a mixed radiolucent-radiopaque lesion. We present three cases of desmoplastic ameloblastoma. All the patients complained on buccal swelling with or without pain and the sites of occurrence were the anterior and the premolar region. Plain radiographs showed mixed radiopaque-radiolucent lesion with ill-defined or diffuse sclerotic margin and no external root resorption. Additionally, CT scans revealetl buccal expansion and relatively well-defined margin of the lesions. The clinical and radiographic features of the presented cases were compared with those of the desmoplastic ameloblastoma in the previous literatures.

테라헤르츠 이미징 기술 개발 동향

최다혜,신준환,이의수,문기원,이일민,박동우,김현수,김무건,최경선,박경현,Choi, D.H.,Shin, J.H.,Lee, E.S.,Moon, K.W.,Lee, I.M.,Park, D.W.,Kim, H.S.,Kim, M.G.,Choi, K.S.,Park, K.H. 한국전자통신연구원 2019 전자통신동향분석 Vol.34 No.5

Modern imaging technologies utilizing electromagnetic waves are indispensable in our daily lives. Applications, such as television and smartphone screens, radar imaging for weather forecast, and medical imaging, can be attributed to technology developments in various electromagnetic regions. Terahertz (THz) waves, electromagnetic (EM) waves located between far infrared and microwave regions, had left unexplored EM waves. Recent advances in technology have led to various two-dimensional and three-dimensional THz imaging techniques. In this article, we explain THz imaging techniques as well as the experimental results from our laboratory. Additionally, we introduce commercial THz cameras developed worldwide. Finally, we present the applications of THz imaging techniques.