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Jiyoung Park,Chongwon Park,Sanghee Kim,Gill A. Ten Hoor,Gahui Hwang,Youn Sun Hwang 한국아동간호학회 2020 Child Health Nursing Research Vol.26 No.4
Purpose: Community child centers (CCCs) were introduced to provide after-school activities and care, including meal services to children from low-income families. The assistant cooks, who have the main responsibility for making and serving food at CCCs, are a major factor influencing the eating habits of children using CCCs. In this study, we tried to identify and understand who the assistant cooks are, what their job responsibilities are, and what they need in order to be able to provide children with healthy meals. Methods: Three focus group interviews were held with 17 workfare program participants who worked as assistant cooks at CCCs, and content analysis methods were applied using the NVivo 12 qualitative data analysis software. Results: The assistant cooks reflected on their perceptions of the children's health at the CCCs, their own cooking style, and their role at the CCCs. Additionally, barriers to the optimal provision of their services were pointed out, and improvements were suggested. Conclusion: The results of this study can be used as a fundamental resource for the development of tailored interventions that consider a child's unique environment to address health disparities, specifically with respect to childhood obesity.
Jiyoung Park,Sein Hwang,Chongwon Park,Seolhyang Baek,Gahui Hwang,Yoojeong Kang 한국간호과학회 2021 한국간호과학회 학술대회 Vol.2021 No.10
Aim(s): Diet-related disparities negatively affect children"s physical and mental health and their health-related quality of life. These inequalities are influenced by the diverse circumstances in which children live and grow. Community Child Care Centers (CCCs) is the representative social welfare policy to provide afterschool care programs, including meal services for low-income children in South Korea. In this context, the physical and social environments of CCCs, as a significant environmental agent, influence dietary intake, behaviors, and patterns of low-income children. To use mixed-method, we explore the eating behaviors of low-income school-aged children attending CCCs and its food environments to influence children’s eating behaviors. Method(s): We applied concurrent mixed methods: a self-reported survey with 349 school-aged children and 34 service providers in the seventeen CCCs conducted. A total of three centers participated in the participatory observations and interviews. The quantitative data were analyzed using descriptive statistics, and the qualitative data were analyzed using content analysis applying NVivo R 1. Result(s): As a result of the survey and participatory observation, children"s eating behavior was not healthy as we expected. The child’s eating behavior score was 58.95 out of 100. Among the five sub-domains, the ‘diversity’ factor, representing the diversity of meals, was the highest (67.91), and the ‘balance’ factor, representing a balanced diet, was the lowest (50.26). Besides, various dietary problems, including overeating and unbalanced eating, were observed. Interestingly, the perceptions of the center’s food environment in which service providers responded and the results of our participatory observations and interviews were quite different. In other words, they replied that the center"s environment was healthy, but in reality, based on participatory observation and interviews, a significant gap existed. Conclusion(s): To alleviate socioeconomic diet-related disparities among children, we propose urgently establishing a food environment that can support healthy eating. Furthermore, it is necessary to improve service providers’ awareness of a healthy eating environment, including healthy donation.
Hwang, Jiyoung,Chung, Myung Jin,Bae, Younga,Shin, Kyung Min,Jeong, Sun Young,Lee, Kyung Soo Lippincott Williams Wilkins, Inc. 2010 Journal of computer assisted tomography Vol.34 No.1
OBJECTIVE:: To evaluate the relationship between a computed tomographic reconstruction kernel and the sensitivity of a computer-aided detection (CAD) system for lung nodule detection. METHODS:: We retrospectively studied 36 consecutive patients with no known pulmonary nodules who underwent low-dose computed tomography for lung cancer screening with 3 different reconstruction kernels (B, C, and L). All series were reviewed with a commercial CAD system for lung nodule detection. RESULTS:: The 36 scans showed 231 uncalcified nodules (170 micronodules and 61 nodules). There was little variation of sensitivities for each series (82%, 88%, and 82% for the nodules of B, C, and L, respectively). When the results of 2 series were combined, sensitivities were boosted (B + C, 89%; B + L, 95%; and C + L, 96% for the nodules). CONCLUSIONS:: Sensitivity of the CAD system was influenced by the selection of the reconstruction kernel. By combining data from 2 different kernels, CAD sensitivity can be elevated without further patient radiation exposure.
Constructivism in Smart Tourism Research: Seoul Destination Image
Hwang, Jiyoung,Park, Hyo-Yeun,Hunter, William Cannon The Korea Society of Management Information System 2015 Asia Pacific Journal of Information Systems Vol.25 No.1
This paper specifically delineated the methodological application of constructivism in smart tourism studies. It explained what constructivism is and how this methodology could be applied in the study of smart tourism. In this study, residents of Seoul participated in constructivist research using the Q method to identify their subjectivities toward Seoul based on photographs most commonly found in tourism promotional material. Residents are concerned with good governance and cultural integrity, and they are aware of their role as stakeholders in tourism in their communities. However their potential contribution to destination image formation has been usually overlooked by researchers and marketers. Three clusters of subjectivities were revealed after 42 photographs of Seoul were sorted by 37 respondents. The results show how respondents perceived Seoul's destination image. The three clusters agreed that symbolic monuments were the key representations of Seoul. The paper recommends that tourism marketers and policy makers should focus on understanding and coordinating with residents' perceived image of Seoul as a destination when planning and decision making, especially in promoting Seoul as a destination market. This study, in conjunction with other constructivist research offers insight into how destination image is, especially with the rise of smart tourism, a complex social construction.
Signaling of hypochlorous acid by selective deprotection of dithiolane
Hwang, Jiyoung,Choi, Myung Gil,Bae, Jihee,Chang, Suk-Kyu Royal Society of Chemistry 2011 Organic & Biomolecular Chemistry Vol.9 No.20
<P>The selective signaling of hypochlorous acid by dithiolane-protected pyrene-aldehyde was investigated. Dithiolane derivative of pyrene-aldehyde was efficiently deprotected by hypochlorous acid to its corresponding aldehyde, which resulted in a prominent UV-vis and turn-on type fluorescence signaling. The signaling was not affected by the presence of other common alkali, alkaline earth metal ions, and anions. Interference from Hg<SUP>2+</SUP> ions could be successfully circumvented by using Chelex-100 resin. Dithiolane also provided selectivity toward hypochlorous acid over other commonly used oxidant of hydrogen peroxide.</P> <P>Graphic Abstract</P><P>The selective signaling of hypochlorous acid by dithiolane-protected pyrene-aldehyde 1 was investigated. Dithiolane probe was efficiently deprotected by hypochlorous acid to its corresponding aldehyde, which resulted in a prominent UV-vis and turn-on type fluorescence signaling. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=c1ob06012k'> </P>