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복합리조트의 체험요인(4Es)이 관광객의 지각된 가치 및 행동의도에 미치는 영향 연구 -파라다이스시티를 중심으로 -
유은수,이병철 사단법인 한국비즈니스이벤트컨벤션학회 2023 이벤트 컨벤션 연구 Vol.19 No.3
Purpose – This study aimed to clarify the effect of experience factors of integrated resorts on tourists' perceived value and behavioral intention, and the relationship between perceived value and behavioral intention. Design, data, and methodology – An analysis of previous research on integrated resort experience factors, perceived values, and behavioral intentions was conducted, and a survey was conducted targeting over 300 tourists to Paradise City in Yeongjong Island. The collected data was validated through regression analysis. Result – As findings, the experiential factors(4Es) of a integrated resort positively influence the perceived value and behavioral intentions of integrated resort tourists. Interestingly, entertainment experiences, however, were found not to affect social value. The perceived value of integrated resort tourists was analyzed to impact their behavioral intentions. Conclusions – Therefore, it is necessary to focus on revitalizing integrated resorts by strengthening various experience factors for tourists.
수학 교사와 예비교사의 추론 및 증명구성 역량 및 특성 탐색
유은수,김구연 한국수학교육학회 2019 수학교육 Vol.58 No.2
이 연구에서는 중등 수학 교사와 예비교사들이 추론과 증명을 어떻게 이해하여 구성하는지를 탐색하였다. 연구 참여자들은 대부분 대수적인 증명을 시도하는데 이미 알고 있는 공식이나 식을 적용한 대수적 조작으로 답을 구하는 것에그치며 주어진 문제에 내재된 수학적 구조를 통해 증명을 구성하지는 못하였다. 또한 참여자의 상당수가 대수적 식을통한 증명만을 완전한 증명으로 판단하였으며 대부분은 기존에 접하지 못했던 새로운 문제유형에서 추론 및 증명구성을 완성하지 못하는 것으로 나타났다. This study aims to examine pre- and in-service mathematics teachers’ reasoning and how they justify their reasoning. For this purpose, we developed a set of mathematical tasks that are based on mathematical contents for middle grade students and conducted the survey to pre- and in-service teachers in Korea. Twenty-five pre-service teachers and 8 in-service teachers participated in the survey. The findings from the data analysis suggested as follows: a) the pre- and in-service mathematics teachers seemed to be very dependent of the manipulation of algebraic expressions so that they attempt to justify only by means of procedures such as known algorithms, rules, facts, etc., rather than trying to find out a mathematical structure in the first instance, b) the proof that teachers produced did not satisfy the generality when they attempted to justify using by other ways than the algebraic manipulation, c) the teachers appeared to rely on using formulas for finding patters and justifying their reasoning, d) a considerable number of the teachers seemed to stay at level 2 in terms of the proof production level, and e) more than 3/4 of the participating teachers appeared to have difficulty in mathematical reasoning and proof production particularly when faced completely new mathematical tasks.
유은수,이준,이병철 경기대학교 관광종합연구소 2023 여가관광연구 Vol.39 No.-
The purpose of this study is to segment the market based on the types of motivations of wellness tourists and analyze differences in their perception of service quality. Through a literature review, six motivation factors for participating in wellness tourism products were identified. The study sample consisted of participants in wellness tourism products in the Chungju area for approximately three months, starting in September 2021, and a total of 257 valid samples were used for analysis. Using cluster analysis, they were categorized into four segmented groups: 'Quest for Novelty,' 'Comprehensive Motivation Pursuit,' 'Neutral Wellness Pursuit,' and 'Exploratory Wellness Pursuit.' The analysis revealed that the overall service quality factor average for the 'Neutral Wellness Pursuit' group was the lowest, while the 'Quest for Novelty' group showed relatively higher averages for service quality factors. Therefore, more meticulous management is required for the 'Neutral Wellness Pursuit' group, and managing the 'Comprehensive Motivation Pursuit' group through the provision of high-quality wellness services is necessary. In conclusion, the increasing demand for wellness tourism necessitates differentiation of service quality and segmented management based on the motivation for wellness tourism participation.
증례 : 소화기 ; Hemosuccus Pancreaticus 1예
유은수 ( Eun Soo Yoo ),유병무 ( Byung Moo Yoo ),유은정 ( Eun Jung Yoo ),윤소영 ( So Young Yoon ),양민재 ( Min Jae Yang ),황재철 ( Jae Chul Hwang ),김진홍 ( Jin Hong Kim ) 대한내과학회 2016 대한내과학회지 Vol.90 No.5
HP는 혈액이 췌관을 통하여 주 유두부로 배출되는 상부위장관 출혈로, 드문 빈도와 증상의 간헐성으로 인해 정확한초기 진단이 어려운 경우가 많으나, 상부위장관 출혈 환자에서 십이지장내에 출혈이 관찰되는 경우 반드시 감별이 필요한 질환이다. 가성동맥류의 경우 급성 및 만성 췌장염에 의한효소 작용으로 혈관벽이 손상되어 발생하나, 진성동맥류의 경우 동맥경화로 인한 혈관벽 확장이 주요 기전으로, 진성동맥류로 인한 HP 발생 가능성 역시 고려되어야 하겠다. 기존의 보고와는 달리 저자들은 만성 음주력 없이 비장동맥의 진성동맥류에 의하여 발생한 HP 1예를 경험하였고 이를 성공적으로 치료하고 최종 병리학적 소견을 확인하였기에 문헌고찰과 함께 증례를 보고하는 바이다. Hemosuccus pancreaticus, defined as bleeding from the papilla of Vater via the pancreatic duct, is a rare cause of recurrent upper gastrointestinal bleeding. We report the case of a 67.year.old man with recurrent gastrointestinal bleeding, who was subsequently diagnosed with hemosuccus pancreaticus caused by rupture of a true splenic artery aneurysm. The patient had chronic pancreatitis after considerable delay and unnecessary surgical small bowel exploration. The patient was cured with distal pancreatectomy because concomitant arcuate ligament syndrome precluded the angiographic approach via the celiac trunk, and tortuous dilatation of the distal pancreatic duct could not exclude the main duct type of intraductal papillary mucinous neoplasm (IPMN). In the surgical specimen, the pancreatic duct contained a hematoma and was lined by normal epithelium, indicating rupture of the splenic artery aneurysm that bled into the pancreatic duct. (Korean J Med 2016;90:421-426)
Alginate Nanohydrogels Prepared by Emulsification-Diffusion Method
이소민,유은수,이수정,김한도 한국고분자학회 2009 Macromolecular Research Vol.17 No.3
This study reports the preparation and characterization of nanohydrogels by using sodium alginate as a model material. Alginate nanohydrogels (ANH) were prepared by emulsification-diffusion method in a w/o system with 1,2-diacyl-sn-glycero-3-phosphocholin as the lipophilic surfactant. The effects of the alginate to surfactant ratio and the remaining water contents on the mean particle size and swellability of ANHs were investigated in terms of the concentration, agitation speed, and agitation time. The feasibility of using nanohydrogels and their controllability were proved by the water the absorbency of ANHs during a 7-day evaluation by dynamic light scattering. In this work, the mean particle sizes of ANHs could be controlled from 49.2 nm (measured in ethanol phase) to 1.9 μm (measured in water phase, after 7 days of water absorption).