성인 운동선수들의 스포츠 부정행위에 대한 윤리적 민감성

최창환 한국자료분석학회 2018 Journal of the Korean Data Analysis Society Vol.20 No.2

The purpose of this study was to identify the ethical sensitivity of domestic adults athletes to sports manipulation. For the study, 362 athletes were examined to confirm the level of ethical sensitivity to sports manipulation, the level of ethical sensitivity to sports manipulation depending on athletes’ characteristics and depending on the completion of sports manipulation education. The multi-facets Rasch model of item response theory (IRT) was applied, and IBM SPSS (ver. 20.0), Facets (ver. 3.67.1), and Winsteps (ver. 3.65.0) were used to analyze the data. The results of the study are as follows. First, domestic adult athletes are sensitive to intentionally arranged manipulations and are insensitive to intentional negligence. Second, athletes showed differences in the level of ethical sensitivity depending on their affiliation and the national team experience. Third, athletes showed differences in the ethical sensitivity level depending on the completion of sports manipulation education. Groups which completed the education are more sensitive to sports manipulation. Based on the results of this study, it is expected that various research can be conducted in sports ethics education field. 본 연구의 목적은 국내성인 운동선수들을 대상으로 스포츠 부정행위에 대한 윤리적 민감성을 확인하는 것이다. 구체적으로 본 연구에서는 362명의 성인 운동선수들을 대상으로 첫째, 스포츠 부정행위에 대한 윤리적 민감성 수준을 확인하였다. 둘째, 인구통계학적 특성에 따른 스포츠 부정행위의 윤리적 민감성 수준을 확인하였다. 셋째, 스포츠 부정행위 관련 교육이수 여부에 따른 스포츠 부정행위의 윤리적 민감성 수준을 확인하였다. 본 연구의 목적을 달성하기 위하여 문항반응이론의 다국면 Rasch 모형을 적용하였다. 문항측정치와 표준오차를 산출하였으며, 조사도구의 타당성 및 신뢰도 관련 증거를 확인하기 위하여 문항적합도지수와 점이연 측정상관계수를 산출하였다. 자료처리를 위해 IBM SPSS(ver. 20.0), Facets(ver. 3.67.1)과 Winsteps(ver. 3.65.0) 프로그램을 활용하였다. 본 연구의 결과는 다음과 같다. 첫째, 국내성인 운동선수들은 의도적 담합에 속하는 부정행위들에 대해 민감하며, 의도적 태만 행위에 대해 둔감한 것으로 나타났다. 둘째, 국내성인 운동선수들은 소속, 국가대표 경험에 따라 윤리적 민감성의 차이를 나타냈다. 셋째, 스포츠 부정행위 관련 교육이수 여부에 따라 윤리적 민감성 수준은 다르다. 교육을 이수한 집단일수록 스포츠 부정행위에 대해 민감한 반응을 나타냈다. 본 연구의 결과를 기반으로 국내 스포츠학을 포함한 스포츠 윤리 교육현장에서 다양한 연구가 진행될 수 있을 것이라 기대한다.

42세 여자, 하복부 통증과 혈성 설사

최창환,이상길,조재희,김태일,이용찬,김원호/ 大韓消化器內視鏡學會 2003 Clinical Endoscopy Vol.26 No.5

AI Comparative Analysis of Trade and Consumption Patterns in Korea and China

최창환,Thi Thanh Tuyen Nguyen,PengYan Wang 한국무역학회 2023 Journal of Korea trade Vol.27 No.1

Purpose – This research is to empirically explore the differences in apparel consumption among male and female teenagers and college students in Korea and China. By conducting a survey to understand customers' needs and behaviors, fashion businesses will be able to improve their customer satisfaction and avoid redundancy, inventory, and the waste of resources, effort and money. Design/methodology – The research design considers the consumption patterns of male and female high school and college students in Korea and China. To analyze the data, the study employs decision trees, a type of machine learning algorithm. A decision tree model was developed to examine the relationship between the explanatory and response variables, which can be either quantitative or qualitative in nature. Findings – The main findings of this study indicate that there are differences in shopping behavior among different customer segments. The results show that men have a simpler shopping behavior compared to women. Additionally, cultural factors and the difference in fashion needs between students and non-students have a significant impact on the shopping choices of Chinese and Korean individuals. Originality/value – Existing studies often assume that the shopping behavior of high school and university students is similar and that there are no significant differences in clothing purchases between men and women across countries. The results provide valuable insights into the unique shopping behavior of different customer segments, and can inform fashion businesses in their efforts to meet the needs of their customers.

Construction of High-Density Tissue Microarrays at Low Cost by Using Self-Made Manual Microarray Kits and Recipient Paraffin Blocks

최창환,최석진,김규호,송주영,김루시아,박인서,한지영,김준미,주영채 대한병리학회 2012 Journal of Pathology and Translational Medicine Vol.46 No.6

Background: Advances of tissue microarray (TMA) technology have enabled simultaneous in situ ana lysis of biomarker expression in a large number of archived pathology specimens. However, the relatively high cost of TMA construction may hamper many researchers from using this essential tool of modern pathology research. We discuss methods for making TMA kits and recipient blocks for manual construction of high-density TMAs at lowcost. Methods: Ordinary cannula piercing needles, hypodermic needles, bone marrow biopsy needles, metallic ink cartridges of ballpoint pens, and disposable skin biopsy punches were used to construct self-made manual TMA kits. The recipient blocks were manufactured by boring holes in the conventional bare paraffin blocks. A mini electric hand drill and a microcompound table assembled on a drill stand were used to maximize the capacity of the recipient blocks. Results: By using TMA kits made from cannula piercing needles (16- and 18-gauge), it was possible to construct TMAs with 1 mm×140 cores, 0.6 mm×320 cores, 2 mm×70 cores, 3 mm×35 cores, and 5 mm×12 cores. The capacity of the recipient blocks could be dramatically increased by drilling holes. Conclusions: Construction of TMAs using self-made TMA kits is an inexpensive alternative to construction of TMAs using commercial devices.

구연 : 소화기 ; 베체트장염 환자에서 Anti-Saccharomyces cerevisiae andtibody (ASCA) 발현율 및 질병의 임상경과와의 연관성

최창환,이상길,김병창,김태일,이용찬,김원호 대한내과학회 2003 대한내과학회 추계학술대회 Vol.65 No.10

기전 시스템의 구동 모터 선정 방법과 견마로봇용 지뢰탐지 구동 장치에의 적용

최창환,정승호,김석환,이정엽,최덕선,정상철,박용운,Choi, Chang-Hwan,Jung, Seung-Ho,Kim, Seok-Hwan,Lee, Jeong-Yeob,Choe, Tok-Son,Chung, Sang-Chul,Park, Yong-Woon 한국군사과학기술학회 2007 한국군사과학기술학회지 Vol.10 No.4

This paper presents a motor selection technique for a manipulator design that is used in a multipurpose dog-horse robot. Since the dynamics of a manipulator and its servo drives are closely related to each other, it requires a repetitive analysis to determine a suitable motor. In order to simplify this procedure, Straete et al. proposed a simple normalization method to separate the load dependent terms and the motor dependent terms. This technique is adopted in this paper for selecting a motor in designing a manipulator.

네트워크 이론을 활용한 풋살 공격패턴 분석

최창환,신진호 한국자료분석학회 2018 Journal of the Korean Data Analysis Society Vol.20 No.4

The purpose of this study is to analyze the futsal attack pattern using network theory. Specifically, major attack patterns were confirmed according to attack type and score. For this study, 1,731 attack pattern of 16 teams from 2017 to 2018 Korea futsal super league were collected. Social network analysis based on network theory was applied. For the data analysis, MS-Excel and NetMiner 4.0 programs were used. The conclusion of this study is as follows. First, futsal games represent the high importance of attack performance in the central area. The area of the right side of the field is used as a moving area for high attack frequency and attack performance. Secondly, the main patterns of attacks are an attempt after a pass from the direct kick-in situation. Third, in the solo play situation, high attack pattern is performed in the left side of the field, and in the combination play situation, the attack pattern using the left side and the center of the field is achieved. Fourth, major attack patterns in the goal situation were found to be important in kick-in and dribble in the central area. 본 연구는 네트워크 이론을 활용하여 국내 풋살 경기에서 이루어지는 주요 공격패턴을 알아보고자 하였다. 구체적으로 경기내용 중 득점을 시도하기 위해 수행한 마지막 공격패턴 3회를 기준으로 공격유형 및 득점유무에 따른 주요 공격패턴을 분석하였다. 연구목적을 위해 한국풋살연맹 주관 2017-18시즌 현대해상 FK 슈퍼리그에 참가한 16개 팀의 공격패턴 1,731개의 자료가 분석에 활용됐다. 공격패턴의 분석을 위해 네트워크 이론의 사회연결망 분석을 적용하였다. 자료처리는 MS-Excel과 NetMiner(ver. 4.0) 프로그램을 활용하였다. 연구의 결론은 다음과 같다. 첫째, 국내 풋살 경기는 경기장 중앙지역에서 공격수행의 높은 중요도를 나타낸다. 높은 공격빈도와 공격수행의 이동지역으로는 경기장 우측지역을 활용하고 있다. 둘째, 주요 공격패턴으로는 킥인 상황에서 패스 후 직접 슈팅을 시도하고 있다. 셋째, 개인돌파 상황에서는 경기장 좌측지역에서 높은 공격패턴이 이뤄지며, 조합 플레이 상황에서는 경기장 좌측과 중앙을 활용한 공격패턴이 이뤄진다. 넷째, 득점 상황에서의 주요 공격패턴은 킥인을 통한 득점과 중앙지역에서 돌파를 통한 득점이 주요한 것으로 알 수 있었다. 본 연구의 결과는 풋살 경기의 경기력 관련 정보의 다양화와 함께 주요 공격패턴을 확인할 수 있는 기초 정보로 적용될 수 있을 것이라 기대한다.

Prognostic Implication of Semi-quantitative Immunohistochemical Assessment of CD20 Expression in Diffuse Large B-Cell Lymphoma

최창환,박영훈,임주한,최석진,김루시아,박인서,한지영,김준미,주영채 대한병리학회 2016 Journal of Pathology and Translational Medicine Vol.50 No.2

Background: Immunohistochemical demonstration of CD20 in diffuse large B-cell lymphoma (DLBCL) is prerequisite not only for the diagnosis but also for assigning patients to rituximabcontaining chemotherapy. However, little is known about the impact of abundance of CD20 expression assessed by immunohistochemistry on the clinical outcome of DLBCL. We performed a semi-quantitative immunohistochemical analysis of CD20 expression in DLBCL to examine the prognostic implication of the level of CD20 expression. Methods: Pre-treatment diagnostic tissue samples from 48 DLBCL patients who were treated with rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisone (R-CHOP) regimen were represented in a tissue microarray and immunostained for CD20. The relative abundance of CD20 expression was semi-quantitatively scored using a web-based ImmunoMembrane plug-in. Receiver operating characteristic curve analysis was used to determine a prognostically relevant cut-off score in order to dichotomize the patients into CD20-high versus CD20-low groups. Results: The levels of CD20 expression were heterogeneous among the patients, with a wide and linear distribution of scores. Patients in CD20-low group showed significantly poor clinical outcome. Conclusions: The levels of CD20 expression in DLBCL are heterogeneous among the patients with DLBCL. A subgroup of the patients with CD20 expression levels below the cut-off score showed poor clinical outcome.

고주파 투열 치료를 이용해 치료한 비성 두통

최창환,진광호,박민우,유명상 대한이비인후과학회 2015 대한이비인후과학회지 두경부외과학 Vol.58 No.3

Rhinogenic headache is a headache or facial pain syndrome secondary to mucosal contact points or rhinogenic causes in the absence of rhinitis/sinusitis. The authors report a case of atypical rhinogenic headache in a 72-year-old woman who presented with recurrent right side headache, which was aggravated by nasal breathing. A computed tomographic scan showed no evidence of rhinosinusitis and mucosal contact points. However, during nasal endoscopy, she had multiple pain-trigger points on the septum and lateral nasal wall. Treatment involved endoscopic reduction and radiofrequency diathermy of the pain-trigger point. Postoperatively, the headache was successfully relieved, and there was no evidence of recurrence. In this article, the authors present surgical option for the treatment of atypical rhinogenic headache.

How Initiation Affect Trade Measure on Other Countries?

최창환 한국국제상학회 2017 國際商學 Vol.32 No.4

This paper analyzes how initiation affect trade measures on the other countries, and the difference between developing and developed countries using panel data. The empirical results show that anti-dumping initiations have a more positive effect on developing countries's anti-dumping measures than on developed ones. And unemployment, GDP has a less negative effect on anti-dumping measures in developing counties than in developed countries. FDI has a adverse effect on anti-dumping measures in developing countries. In order to avoid anti-dumping measures, the developing countries should increase FDI, the developed countries shall improve unemployment and GDP growth.