체감형 VR 게임이 기분상태 변화와 운동 효과에 미치는 영향

서성우 ( Seo Seong-woo ),고경훈 ( Ko Kyung-hoon ),박상국 ( Park Sang-gook ),허정훈 ( Huh Jung-hoon ) 한국스포츠심리학회 2021 한국스포츠심리학회지 Vol.32 No.4

목적: 본 연구는 체감형 VR 게임이 기분상태와 운동 효과에 어떠한 영향을 미치는지 검증하는 데 목적이 있다. 방법: 연구참여자는 무선할당에 의해 VR 신체활동 게임집단 9명, 오프라인 신체활동 집단 9명으로 분류하였다. 4주 동안 실시한 프로그램에서 수집된 데이터를 바탕으로 반복측정 분산분석(RM ANOVA) 방법을 사용하여 기분 상태 변화 수준과 운동 효과의 차이를 확인했다. 결과: 두 집단 모두 기분상태의 부정적 요인이 감소하고 긍정적 요인은 증가한 것으로 나타났다. 반면 집단 간에 유의한 차이는 발견되지 않았다. 최대심박수와 운동 자각 수준이 유의하게 감소하여 운동 효과가 있는 것으로 나타났다. 결론: 체감형 VR 게임이 기분상태의 부정적 요인을 낮추고 긍정적 요인을 증가시킨다는 것을 알 수 있었고 중요하게는 오프라인에서 실시하는 신체활동과 유사한 수준의 기분상태 변화와 운동 효과가 있다는 것을 검증하였다. 시·공간의 제약을 받지 않고 혼자서도 즐길 수 있는 체감형 VR 게임은 코로나19 이후 신체활동의 대체물로써 최적의 사용자경험을 제공할 것으로 기대되며 장애·비만·노인 등 신체활동에 제한이 있는 사람들을 위한 맞춤형 프로그램 개발이 활발하게 이루어져야 할 것으로 논의하였다. Purpose: The purpose of this study is to analyze differences in mood conditions and exercise effects among groups and provide basic data on physical activities after Covid-19 by conducting a motion-based VR game program for four weeks. Methods: Physical activity program participants were classified into two groups(Experimental group, 9; Comparison group, 9) by random assignments. Based on the data collected for four weeks, the repeated measures ANOVA(RM ANOVA) method was used to determine the difference in mood state change levels and motor effects between groups. Results: It was found that both groups reduced negative factors in mood and improved positive factors. On the other hand, no significant difference was found between groups. The maximum heart rate and exercise awareness level were significantly reduced, indicating that there was an exercise effect. Conclusion: The above results are significant in that they verified that motion-based VR games lower negative factors of mood and improve positive factors, and that they have a similar level of exercise effect to offline physical activities. motion-based VR games that can be enjoyed alone without time and space constraints are expected to provide optimal user experience as a substitute for physical activities after COVID-19, and customized programs for people with limited physical activities such as disabilities, obesity, and the elderly should be actively developed.

폴리머를 혼입한 투수성 포장용 콘크리트의 내구성능에 관한 실험적 연구

박승범(Park, Seong Bum),서대석(Seo, Dae Seuk),이병재(Lee, Byung Jae),송재립(Song, Jae Lib),손성우(Son, Sung Woo),조광연(Cho, Kwang Yeon) 한국콘크리트학회 2005 한국콘크리트학회 학술대회 논문집 Vol.2005 No.11

제7차 실과교육과정 적용상의 문제점 및 발전방안

방기혁(Bang Gi Hyeog),서성우(Seo Sung Woo) 한국실과교육학회 2001 한국실과교육학회지 Vol.14 No.3

The purposes of this study were to identify the actual condition related to the recognition of practical arts education, completion grade and time, the system and contents of experimental text, facility and equipment, practical arts teacher’ training, evaluation, to present the new directions of its. The major findings of the study were as follows ; (1) Practical arts teachers should teach practical arts education among grades connectedly, improve an educational method and environment. (2) Practical arts education should turn objectivism based on the objectivity of knowledge into constructivism based on the subjectivity of it. (3) Practical arts education should involve computer education through discretional activities. (4) Practical arts teaching-learning materials should be variously developed for experiment and practice. (5) ‘Safty life’ domain should be developed for the prevention of practice accident in practical arts curriculum. (6) Practical arts curriculum should contain the contents that are able to perceive the dignity of man through the relation among plant, animal, man.

블록 맞대기 용접부 종통재 너클 각도에 따른 강도 평가

임형균(Hyung Kyun Lim),신준식(Jun Sik Shin),서호원(Ho won Seo),한성우(Sung Woo Han),이주성(Joo Sung Lee) 대한조선학회 2011 대한조선학회 학술대회자료집 Vol.2011 No.6

본 연구는 선박 건조 시 Shell Block Butt부에 발생하는 Longi. Knuckle 기준이 조선소마다 상이하고, 대부분 실적선을 바탕으로 한 경험에서 비롯된 것이어서 선주 성향에 따라 논쟁의 여지가 되고 있어 탑재 단계에서 보강재 설치 등의 추가 작업이 발생되고 있다. 이에 Shell Longi. Knuckle각도에 따른 강도 평가를 수행하였다. 먼저 Shell Longi. End부 Knuckle 형상을 갖는 구조물의 구조적 거동을 파악하기 위하여 실적선들의 설계자료를 이용하여 Cargo Hold 구역 Double Bottom Shell Longi. End 부재 구조를 선택하여 구조 해석을 실시 하였으며, 실적선 자료를 바탕으로 한 간이 모델의 해석 결과를 선급 Rule 기준치와 비교 분석하였다. 최종적으로 Shell Longi. Knuckle에 대한 설계 기준을 해석 결과와 Longitudinal Bending & Twisting, Block 조립 및 탑재 정도 등 현장 작업변수를 고려하여 합리적인 설계 기준을 정립하고자 한다.

블록 맞대기 용접부 종통부재 너클 각도에 따른 강도 평가

임형균(Hyung Kyun Lim),신준식(Jun Sik Shin),서호원(Ho won Seo),한성우(Sung Woo Han),이주성(Joo Sung Lee) 대한조선학회 2011 대한조선학회 학술대회자료집 Vol.2011 No.6

This paper is regarding ship-building; The longi. knuckle standard which occurs at shell block butt is different for each shipyards. Most of standard is based on the experience of actual ship, this standard has become debatable according to owner's inclination. So additional task is caused, which is that install reinforcements from mounting steps, and so on. Hence, we perform strength assessment according to angle of shell longi. knuckle. First, in order to identify structure which has shell longi. End part knuckle form of structural behavior, we carry out structural analysis by selecting part of double bottom shell longi. End structural member in cargo hold area, using design base of actual ship. And then, we compared with the analyzed results of simplicity model based on actual ship data with the results of the classification rule criterion. In the end, we plan to establish a rational design criteria about shell longi .knuckle by considering field work variables which are longitudinal bending & twisting, block assembly and mount degree and results of analysis.

위장관 ; 미분화 조기위암에서 내시경 점막하박리술의 치료 성적

최문한 ( Moon Han Choi ),홍수진 ( Su Jin Hong ),한재필 ( Jae Pil Han ),송정엽 ( Jeong Yeop Song ),김대용 ( Dae Yong Kim ),서성우 ( Sung Woo Seo ),하지수 ( Ji Su Ha ),이윤나 ( Yun Nah Lee ),고봉민 ( Bong Min Ko ),이문성 ( Moon Sung 대한소화기학회 2013 대한소화기학회지 Vol.61 No.4

목적: 내시경 점막하박리술은 조기위암의 표준 치료로 받아들여지고 있다. 하지만, 미분화 조기위암에 대한 내시경 점막하박리술의 적응증은 아직 논란이 있다. 이번 연구에서는 확대 적응증에 의한 미분화 조기위암에서 내시경 점막하박리술의 치료 성적에 대해 파악하고자 하였다. 대상 및 방법: 순천향대학교 의과대학 부천병원에서 미분화 조기위암 환자 81명을 대상으로 82병변에 대해 내시경 점막 하박리술을 시행하였다. 치료 성적에 대해 절제 방법(일괄 절제, 분할 절제), 완전 절제율, 합병증, 재발률에 대해 조사하였다. 결과: 일괄 절제율과 완전 절제율은 각각 87.8% (72/82)과 80.5% (66/82)였다. 반지세포암종에서 저분화 선암종과 반지 세포를 동반한 저분화 선암종에 비해 높은 완전 절제율을 보였으나, 통계학적 의미는 없었다(89.3% vs. 75.0%, 76.7%; p=0.347). 저분화 선암종, 반지세포암종, 반지세포를 동반한 저분화 선암종에서 측면절제면 양성이 확인된 경우는 각각 12.5%, 3.6%, 13.3%였다(p=0.395). 기저절제면 양성이 확인된 경우는 각각 12.5%, 3.6%, 10.0%였다(p=0.485). 평균 37.4 개월의 추적기간 동안 재발률은 3.0%였다. 결론: 확대 적응증에 의한 미분화 조기위암에서의 내시경 점막하박리술은 유용한 치료가 될 것으로 생각되나, 장기적이고 대규모의 연구가 필요하겠다. Background/Aims: Endoscopic submucosal dissection (ESD) has been accepted as a standard treatment of early gastric cancer (EGC). However, the indication of ESD in undifferentiated-type EGC was controversial. The aim of this study was to evaluate the therapeutic outcomes of ESD in undifferentiated-type EGC according to expanded indication. Methods: At Soonchunhyang University Bucheon Hospital, a total of 82 lesions in 81 patients with undifferentiated-type EGC were treated with ESD. The therapeutic outcomes of ESD were evaluated by resection method (en bloc resection; piecemeal resection), histologic curative resection, complications and recurrence rates after ESD. Results: The rate on en bloc resection and complete resection rate were 87.8% (72/82) and 80.5% (66/82), respectively. In signet ring cell carcinoma, the complete resection rate was higher than those in poorly differentiated adenocarcinoma and poorly differentiated adenocarcinoma with signet ring cell features, but there was no statistical significance (89.3% vs. 75.0%, 76.7%; p=0.347). The lateral margin positivity rate in poorly differentiated adenocarcinoma, signet ring cell carcinoma and poorly differentiated adenocarcinoma with signet ring cell features were 12.5%, 3.6% and 13.3%, respectively (p=0.395). The vertical margin positivity rate were 12.5%, 3.6% and 10.0%, respectively (p=0.485). The overall recurrence rate was 3.0% during a mean follow-up period of 37.4 months. Conclusions: ESD may be considered as a feasible treatment for undifferentiated-type EGC according to expanded indication. The therapeutic outcome of ESD in undifferentiated-type EGC is likely to be favorable, though further longer follow-up studies are needed. (Korean J Gastroenterol 2013;61:196-202)

[증례] 혈행성 폐전이로 발견된 원발성 우심방 맥관육종 1예

서성우,김양기,이영목,김기업,어수택,김동원 순천향대학교 의학연구소 2007 Journal of Soonchunhyang Medical Science Vol.13 No.2

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기능영역 뇌동정맥 기형의 수술적 경험

서성우,김한규,문재곤,황용순,이화동 대한신경외과학회 1993 Journal of Korean neurosurgical society Vol.22 No.10

Postoperative brain edema and/or hemorrhage is a serious problem especially arteriovenous malformations(AVM) in an eloquent area. It has been a neurosurgical dilemma whether to surgically remove an unruptured AVM in an eloquent area. It is necessary to define the anatomic location, understand the hemodynamics, vasoreactivity of the adjacent brain parenchyme for safe removal of an AVM in an eloquent area. A successful removal of an AVM at an eloquent motor area without neurological deficit was made. We report method of localization, angiographic anatomy, mechanism of possible hemodynamic insult related to operation.

전순환계 동맥류 환자의 수술 후 심부 뇌경색에 대한 임상적 고찰

서성우,김한규,문재곤,황용순,이화동 대한신경외과학회 1993 Journal of Korean neurosurgical society Vol.22 No.12

Among the series fo 272 cases of surgically treated anterior circulation aneurysms, we experienced 6 cases of central infarctions involving caudate nucleus, globus pallidus, putamen and genu of internal capsule respectively or in combination. These surgery related complications were caused by the injury to the perforators going to the anterior perforated substance during manipulation of the large aneurysm or the aneurysms ruptured prematurely. The clinical courses of these patients, however, were not so severe. The morbidities were minimal or none after the average follow-up periods of 17 months. Thorough knowledge of the anatomy of the perforators may help to minimize the severe morbidity in the management of large or difficult aneurysms.

황색포도알균이 가장 흔한 원인인 우리나라 4개 대학병원의 감염성심내막염의 특징

서성우,김태형,현민수,추은주,전민혁,문철,송단,김종화,이용관,최종효,전웅,조영신,최문한 대한감염학회 2008 감염과 화학요법 Vol.40 No.6

Background : To evaluate whether Staphylococcus aureus is actually the leading cause of infective endocarditis in Korea, investigation on updated clinical pictures, treatments, and prognosis was performed. This study also aims to describe differences in clinical characteristics of infective endocarditis in patients undergoing maintenance hemodialysis. Materials and Methods : Fifty five patients who were diagnosed with infective endocarditis, using modified Duke criteria, at 4 Soon Chun Hyang University hospitals (located in Seoul, Bucheon, Cheonan and Gumi) from January of 2000 to June of 2007 were enrolled, Patients were separated into two groups; those on hemodialysis and those who were not on hemodialysis (control group). Medical records and laboratory results of each patient were reviewed retrospectively. Results : The positive rate of blood culture was 72.7%. Staphylococcus aureus was isolated in 38.2% of the patients making it the most common causative organism of infective endocarditis. It was also the most common organism in both hemodialysis group and non-hemodialysis group. Six patients (10.9%) died while admitted to the hospital and the in-hospital death rate for hemodialysis group was significantly higher. Conclusion : In most parts of the world, S. aureus is increasingly becoming the principal causative organism of infective endocarditis. To our knowledge, this is the first study that shows S. aureus to be the most common causative organism of infective endocarditis in Korea, and that Korea is not except from this global epidemiology.