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이미지 기반 AI 피부 진단 기술과 문진을 결합한 통합 피부진단 기능에 관한 고찰 (Image-Based Skin Diagnosis Using AI Technology Combine with Survey System for Review of Integrated Skin Diagnosis Function)

  • 박학권;임영환;박혁곤;황중원;이상란;조은상;림빈
    • 문화기술의 융합
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    • 제8권3호
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    • pp.463-468
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    • 2022
  • COVID-19의 장기화는 다양한 산업의 패러다임에 새로운 시도와 변화를 주고 있다. 고객이 직접 피우에 닿고 사용하는 제품을 판매하는 산업에서는 그 현상이 날로 가중된다. 이러한 상황에 대응하고자 최근 Cosmetics 업계에서 다양한 언택트(비대면) 서비스들을 선보이고 있다. 기존 전통 오프라인 채널에서부터 다양한 온라인 채널 확보를 통하여 고객들의 수요와 참여를 끌어내고자 한다. 대표적으로 기존에는 온라인 문진 서비스를 이용하여 고객에게 맞춤 제품을 추천하는 서비스들을 제공하고 있지만 얼마 지나지 않아 한계에 도달하게 된다. 본 논문에서는 기존 정형화된 문진 서비스와 한걸음 더 나아가 AI 기술을 이용한 이미지 기반 피부진단 기능을 결합하는 새로운 방식의 피부진단 서비스에 대하여 연구하였다. 사용자는 촬영된 이미지를 이용하여 몇 가지 항목에 대한 진단을 받게 되고 최종 피부타입을 도출하기 위하여 부족한 진단 항목은 기존에 제안한 피부진단 서비스를 활용하였다. 이런 방식은 기존에 제공되고 있는 문진 서비스보다 재미 요소를 더할 뿐만 아니라 기술 트린드인 AI를 결합하여 더욱 고객 참여를 이끌어 낼 수 있고 가시적이고 정확도가 있는 지속적인 서비스를 만들어 내고자 함에 있다.

Estimation of GHG emissions and footprint from Daecheong Reservoir using G-res Tool

  • Min, Kyeongseo;Kim, Dongmin;Chung, Sewoong
    • 한국수자원학회:학술대회논문집
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    • 한국수자원학회 2022년도 학술발표회
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    • pp.209-209
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    • 2022
  • Reservoirs play a key role in the carbon cycle between terrestrial and marine systems and are pathways that release greenhouse gases(GHGs), CO2, CH4, and N2O, into the atmosphere by decomposing organic matters. Developed countries have been actively conducting research on carbon emission assessment of dam reservoirs for over 10 years under the leadership of UNESCO/IHA, but associated research is very rare in Korea. In particular, the GHGs footprint evaluation, which calculates the change in net carbon emission considering the watershed environment between pre- and post- impoundment, is very important in evaluating the carbon emission of hydroelectric dams. The objective of this study was to estimate the GHG emissions and footprints in Daecheong Reservoir using the G-res Tool, an online platform developed by UNESCO/IHA. The G-res Tool estimates CO2 and CH4 emissions in consideration of diverse pathway fluxes of GHGs from the reservoir and characterizes changes in GHG fluxes over 100 years based on the expected lifetime of the dam. The input required to use the G-res Tool include data related to watersheds, reservoirs, and dams, and most were collected through the government's public portal. As a result of the study, the GHG footprint of Daecheong Reservoir was estimated to be 93 gCO2eq/m2/yr, which is similar to that of other reservoirs around the world in the same climate zone. After impoundment, the CH4 diffusion emission from the reservoir was 73 gCO2eq/m2/yr, also similar to those of the overseas reservoirs, but the CH4 bubbling emission, degassing emission, and CO2 diffusion emissions were 44, 34, 252 gCO2eq/m2/yr, respectively, showing a rather high tendency. Since the dam reservoir carbon footprint evaluation is essential for the Clean Development Mechanism evaluation of hydroelectric power generation, continuous research is needed in the future. In particular, experimental studies that can replace the emission factors obtained from the overseas dam reservoirs currently used in the G-res Tool should be promoted.

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머신러닝 기반의 유튜브 먹방 콘텐츠 인기 예측 모델 (A Machine Learning-based Popularity Prediction Model for YouTube Mukbang Content)

  • 서범근;이한준
    • 인터넷정보학회논문지
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    • 제24권6호
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    • pp.49-55
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    • 2023
  • 본 연구에서는 유튜브 먹방 콘텐츠의 인기를 예측하는 모형을 제안하고 사후 분석을 통하여 먹방 콘텐츠의 인기에 영향을 주는 요인들을 식별하였다. 이를 위해 API와 Pretty Scale을 활용하여 구독자수 상위 먹방 채널들로부터 22,223개 콘텐츠의 정보를 수집하고 Random Forest, XGBoost 및 LGBM 등의 머신러닝 알고리즘을 기반으로 조회수와 좋아요수 예측모델을 구축하였다. SHAP 분석 결과 조회수 예측 모형에서는 구독자수가 예측에 가장 큰 영향을 미치는 반면, 좋아요수 예측 모형에서는 크리에이터의 매력도가 중요변수로 도출되는 등 콘텐츠 조회와 좋아요 반응에 대한 선행요인이 다름을 확인할 수 있었다. 본 연구는 대량의 온라인 콘텐츠를 분석하여 실증 분석을 진행하였다는 점에서 학술적 의의가 있으며 먹방 크리에이터들에게 시청자들의 콘텐츠 소비 경향을 알려주고 상품성 높은 콘텐츠 제작의 가이드를 제공한다는 점에서 실무적인 의의를 지닌다.

간호대학생의 소명의식과 자아존중감이 간호전문직관에 미치는 영향 (The influence of calling and self esteem on nursing professionals of nursing students)

  • 이혜경;최윤수;김지선;김명서;전찬영;조채윤;허연진
    • 문화기술의 융합
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    • 제9권6호
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    • pp.563-571
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    • 2023
  • 본 연구의 목적은 간호대학생의 소명의식과 자아존중감이 간호전문직관에 미치는 영향을 파악하기 위한 것이다. 본 연구의 연구 설계는 편의표집을 이용한 서술적 조사연구이다. 자료 수집은 충청북도에 소재한 3개 대학교의 1학년~4학년 간호대학생을 대상으로 구조화된 설문지와 구글 온라인 설문 방법을 병행하여 수집하였다. 수집된 자료는 SPSS window 25.0 프로그램을 이용하여 빈도와 백분율 및 평균과 표준편차, t-test와 one-way ANOVA, 사후 검정은 Scheffé test, Pearson correlation coefficient, Multiple regression으로 분석하였다. 연구결과 소명의식은 21.7%(𝛽=-.181, p<.001), 전공만족도 2.8%로, 소명의식과 전공만족도가 간호전문직관을 총 24.5% 설명하는 것으로 나타났다(𝛽=.420, p<.001). 따라서 간호대학생의 소명의식을 인식하고 확인하면서 전공만족도 향상을 위한 교육과정 및 교수학습 전략을 수립하는 기초자료로 활용할 것을 제언한다.

소셜미디어 음식 콘텐츠 이용수준에 따른 20-30대의 건강행동 및 식습관에 대한 단면 조사연구 (Health behaviors and eating habits in people's 20s and 30s according to food content usage level on social media: a cross-sectional study)

  • 방서연;정복미
    • 대한지역사회영양학회지
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    • 제28권5호
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    • pp.392-403
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    • 2023
  • Objectives: This study was intended to investigate adults' health behaviors and eating habits according to their levels of social media use. Methods: From May 27 to July 11, 2022, an online survey was conducted of 452 male and female social media users in their 20s and 30s, and their eating habits and health behaviors were compared and analyzed according to their degree of social media use. For each of the three levels of food content use, the frequency of social media content use, and the total score range of average social media viewing time per day were divided into three parts, and a group with a score of less than 2 points was classified as low-use; a group with a score of 2 or more and less than 3 points was classified as middle-use; and a group with a score of 3 points or more was classified as high-use. Results: The use of food content was higher in women than in men (P < 0.001), and higher in those in their 20s than in those in their 30s (P < 0.001). The group with a high level of food content use showed a higher rate of post-use hunger than the group with a low level (P < 0.01). The experience of eating after using food content was also higher in the group with a high level of use than in the group with a low level of use (P < 0.001). The group with a normal or high level of food content use had more negative eating habits than the group with a low level. Conclusions: The study highlighted the need to provide desirable food content to people in their 20s and 30s with negative eating habits and to promote them so that they can use the right healthy nutrition-related content.

Association Between Depressed Mood Changes and Physical Activity Among Adolescents Post COVID-19 Pandemic

  • Jina Jang;Bong-Jo Kim;Cheol-Soon Lee;Boseok Cha;So-Jin Lee;Dongyun Lee;Young-Ji Lee;Eunji Lim;Nuree Kang;Jae-Won Choi
    • Journal of the Korean Academy of Child and Adolescent Psychiatry
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    • 제34권4호
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    • pp.242-249
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    • 2023
  • Objectives: Following the coronavirus disease 2019 (COVID-19) pandemic, adolescents have experienced decreased physical activity and a decline in mental health. This study analyzed the association between changes in depressed mood after the COVID-19 pandemic and physical activity among adolescents. Methods: The analysis was based on the results of the 17th Youth Health Behavior Online Survey conducted in 2021, which included 54848 middle and high school students in South Korea. Information on physical activity included low-intensity physical activity lasting >60 min/day, high-intensity physical activity, and strength training exercises. A logistic regression analysis was performed to evaluate the association between physical activity and changes in depression after the COVID-19 pandemic. Results: After adjusting for sociodemographic characteristics and previous depression, adolescents who performed strength training exercises more than once per week had a 0.95-fold lower risk (odds ratio [OR]=0.948, 95% confidence interval [CI]=0.905-0.994, p=0.027) of increasing depression after the COVID-19 pandemic, while the risk of decreasing depression increased by 1.22-fold (OR=1.215, 95% CI=1.131-1.305, p<0.001). The results were not significant for low-intensity physical activity for >60 min/day and high-intensity physical activity. Conclusion: Strength-training exercises are significantly associated with the prevention of depression among adolescents following the COVID-19 pandemic.

Nutrition and health challenges among low-income families of young children in the post COVID-19 era: a qualitative study

  • Hyunjung Lee;Wilna Oldewage-Theron;Conrad Lyford;Stephanie Shine
    • Nutrition Research and Practice
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    • 제17권6호
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    • pp.1185-1200
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    • 2023
  • BACKGROUND/OBJECTIVES: In the United States, one in every 5 children is obese with greater likelihood in low-income households. The coronavirus disease 2019 (COVID-19) pandemic may have accelerated disparities in child obesity risk factors, such as poor dietary intake and increased sedentary behaviors, among low-income families because of financial difficulties, social isolation and other struggles. This study reveals insights into nutrition and health challenges among low-income families of young children in West Texas to better understand needs and develop interventions. SUBJECTS/METHODS: In-depth individual interviews were performed via Zoom among 11 families of children under the age of 3. A semi-structured interview guide was developed to explore 3 areas: changes in (1) dietary intake and (2) sedentary behaviors and (3) families' preferences regarding a parent nutrition education program. Each interview was audiorecorded, transcribed, and coded using MaxQDA software. RESULTS: Eating together as a family become challenging because of irregular work schedules during the COVID-19 pandemic. Most parents stated that their children's dietary habits shifted with an increased consumption of processed foods. Many parents are unable to afford healthful foods and have utilized food and nutrition assistance programs to help feed their families. All families reported that their children's screen time substantially increased compared to the pre-pandemic times. Moreover, the majority of parents did not associate child screen time with an obesity risk, so this area could be of particular interest for future interventions. Meal preparation ideas, remote modality, and early timing were identified as key intervention strategies. CONCLUSIONS: Online nutrition interventions that emphasize the guidelines for child screen time and regular meal routines will be effective and promising tools to reach low-income parents for early childhood health promotion and obesity prevention.

코로나19 확진 간호사의 롱코비드(long COVID) 증상과 관련 요인 (Long COVID symptoms and associated factors in registered nurses with COVID-19)

  • 박가은;박연환
    • 한국간호교육학회지
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    • 제30권1호
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    • pp.49-60
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    • 2024
  • Purpose: The coronavirus disease 2019 (COVID-19) pandemic has had significant physical and psychological impacts on registered nurses (RNs). This study aimed to identify long COVID symptoms and their associated factors specifically among RNs. Methods: This descriptive correlational study's sample comprised 189 nurses (31.57±5.98 years, 93.7% female) in Korea. Self-reported long COVID symptoms were assessed using the COVID-19 Yorkshire Rehabilitation Scale. Data were collected from December 31, 2022, to January 13, 2023, using the online survey method and were analyzed using independent t-test, Wilcoxon signed-rank test, one-way ANOVA, Pearson's correlation, and a multiple linear regression analysis with the IBM SPSS Statistics 26.0 program. Results: A total of 179 participants (94.7%) experienced one or more long COVID symptoms. The most prevalent symptoms were weakness (77.8%), fatigue (68.3%), breathlessness (67.7%), cough/throat sensitivity/voice change (50.3%), and sleep problems (50.3%). The factors related to long COVID symptoms were marital status, type of institution, working time, acute COVID-19 symptoms, and vaccination status. The quarantine period (β=.26, p<.001) and the nursing workforce after COVID-19 (β=-.17, p=.018) were significantly associated with long COVID symptoms (Adjusted R2 =.33). Conclusion: Providing comprehensive recognition is necessary for the understanding of long COVID symptoms and their associated factors among nurses and could promote a long COVID symptom management education program targeted at nurses. Moreover, it could facilitate effective nursing care and education plans for long COVID patients.

디자인씽킹 기반의 인터랙션 디자인 교육 연구 (A Study on Interaction Design Education based on Design Thinking)

  • 김호다;주애란
    • Journal of Information Technology Applications and Management
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    • 제31권3호
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    • pp.53-69
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    • 2024
  • This study was attempted to promote changes in traditional design education at a time when non-face-to-face education is necessary, such as digitalization, rapid social structure change, and post-COVID-19 situations, and to meet the demands of the times when user-centered design is more emphasized. Therefore, the goal of this study is to explore the process of developing mobile apps and operating education for deaf learners through design thinking-based interaction design education for design students. Specifically, the curriculum was designed by selecting a design thinking methodology suitable for major students to experience empathy and solutions to user problems. The subject that students majoring in this study want to sympathize with is deaf learners, and the subject of the curriculum is the development of educational support applications for deaf learners. Accordingly, a mobile app prototype that can support online learning for deaf learners was created based on the interaction design education plan designed based on design thinking. In addition, after collecting and analyzing the feedback of deaf learners to evaluate the prototype effectiveness, the final mobile app prototype was presented as an output. Through this process, interactive design education based on design thinking helped to strengthen the ability to empathize with and solve the needs of deaf learners to major students and improve the design learning experience. Based on these findings, if a methodology suitable for various user groups is selectively accepted for design education, the students in the major will have the ability to design by prioritizing the actual needs of users despite changes in the environment of the future design society.

Behavioral Predictors Associated With COVID-19 Vaccination and Infection Among Men Who Have Sex With Men in Korea

  • Minsoo Jung
    • Journal of Preventive Medicine and Public Health
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    • 제57권1호
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    • pp.28-36
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    • 2024
  • Objectives: This study investigated the impact of socioeconomic factors and sexual orientation-related attributes on the rates of coronavirus disease 2019 (COVID-19) vaccination and infection among men who have sex with men (MSM). Methods: A web-based survey, supported by the National Research Foundation of Korea, was conducted among paying members of the leading online portal for the lesbian, gay, bisexual, transgender, or queer and questioning (LGBTQ+) community in Korea. The study participants were MSM living in Korea (n=942). COVID-19 vaccination and infection were considered dependent variables, while sexual orientation-related characteristics and adherence to non-pharmacological intervention (NPI) practices served as primary independent variables. To ensure analytical precision, nested logistic regression analyses were employed. These were further refined by dividing respondents into 4 categories based on sexual orientation and disclosure (or "coming-out") status. Results: Among MSM, no definitive association was found between COVID-19 vaccination status and factors such as socioeconomic or sexual orientation-related attributes (with the latter including human immunodeficiency virus [HIV] status, sexual orientation, and disclosure experience). However, key determinants influencing COVID-19 infection were identified. Notably, people living with HIV (PLWH) exhibited a statistically significant predisposition towards COVID-19 infection. Furthermore, greater adherence to NPI practices among MSM corresponded to a lower likelihood of COVID-19 infection. Conclusions: This study underscores the high susceptibility to COVID-19 among PLWH within the LGBTQ+ community relative to their healthy MSM counterparts. Consequently, it is crucial to advocate for tailored preventive strategies, including robust NPIs, to protect these at-risk groups. Such measures are essential in reducing the disparities that may emerge in a post-COVID-19 environment.