대학태권도선수의 실수인식과 의도적 연습 및 인지된 경기력의 관계

최봉준(Choi, Bong Jun),원세종(Won, Se-Jong) 세계태권도문화학회 2022 세계태권도문화학회지 Vol.13 No.2

The purpose of this study was to investigate the relationship of perception of error, deliberate practice, and perceived performance of University Taekwondo Athletes. To this end, 321 Taekwondo athletes (male 207, female 114) participated in this study. Collected data were analyzed by descriptive statistics, correlation, and multiple regression using SPSS 22.0 version. The results revealed as follow. First, learning from error, error risk taking, and thinking about error had a positive effect on deliberate practice. Second, learning from error and thinking about error had a positive effect on performance satisfaction while error risk taking and thinking about error had a positive effect on will to win. Third, deliberate practice had a positive effect on performance satisfaction and will to win. In conclusion, athletes’ perception of error is key component to enhance deliberate practice and perceived performance. Furthermore, deliberate practice was also identified as a variable that improves perceived performance.

GG-38 : Minimal invasive surgery (LESS) for huge cystic adnexal tumors in whole abdomen

( In Young Choi ),( Ji Hye Lee ),( Mi Hyun Park ),( Ji Kwoun Park ),( Jeong Kyu Shin1 ),( Won Jun Choi1 ),( Soon Ae Lee ),( Jong Hak Lee ),( Won Young Paik ) 대한산부인과학회 2014 대한산부인과학회 학술대회 Vol.100 No.-

Laparoendoscopic single-site surgery (LESS) is helpful if not an evidence of suspicious malignancy in huge adnexa tumors. This approach might be reasonable alternative to conventional laparoscopic surgery. We report two cases with LESS for huge cystic adnexal tumors in whole abdomen. A 58 years old multigravida woman in menopause underwent removal of a huge cystic adnexal mass that occupied her entire abdomen by LESS.(ca.5200ml aspiration) A 15 years old single nulligravida woman had a huge cystic adnexal tumor in whole abdomen reaching to the level of the xyphoid process. A needle through the transumbilical single port was inserted directly under the mass. Subsequently, 8000 ml of cystic fluid was aspirated without spillage.

전방 천골 수막류 - 증 례 보 고 -

박준석,신원한,김범태,변박장,최순관 대한신경외과학회 1998 Journal of Korean neurosurgical society Vol.27 No.11

방사선학적 치근단병소의 크기와 특징에 대한 치근단낭종 및 육아종의 상관관계연구

최호식,이우철,손원준,금기연,배광식,백승호 大韓齒科保存學會 2010 Restorative Dentistry & Endodontics Vol.35 No.1

The purpose of this study was to find out the relationship of radiographic lesion size, gender, age of patients and radiographic character to the diagnosis of periapical cyst and granuloma. The data was collected from 187 periapical lesions of 167 patients who undergone apical surgery at Department of Conservative Dentistry, Seoul National University Dental Hospital from 2003 to 2005. The lesion were surgically removed and send for biopsy to the Oral Pathology Laboratory. From the initial radiograph, lesion size was calculated using PiViweSTAR (INFINITT, Korea) program. The obtained data were statistically evaluated using SPSS (p<0.05). The result were as followings: 1. From 187 biopsy samples, the incidence of periapical cyst was 28.34% and granuloma was 65.24%. 2. There was a significant correlation between periapical cyst and the size of radiographic lesion (p<0.01). 3. There were no significant correlations between age, gender, location of lesion and the final diagnosis (p>0.05). 4. There was a significant correlation between the non-demarcation of the lesion and the incidence of periapical granuloma (p<0.01). 본 연구는 2003년부터 2005년까지 서울대학교 치과병원 보존과에 내원한 환자 중 치근단수술을 시행한 환자 167명에서 생검을 위해 적출한 187개의 치근단병소를 대상으로 하였다. 수술 후 조직검사 결과 얻은 진단명과 환자의 진단기록에서 환자의 성별, 나이, 발병 부위, 방사선 사진 상의 특징 그리고 병소의 크기와의 상관관계를 조사하였다. 초진시 방사선 사진에서 치근단병소의 크기를 PiViewSTAR (INFINITT, Korea)를 이용하여 화소를 계산함으로써 면적을 구하였다. 이를 바탕으로 통계 분석프로그램 SPSS (version 12.0K, SPSS Inc., Chicago, IL, USA)를 이용해 방사선사진상 크기와 진단명과의 상관관계를 조사하였다. 나이와 진단명과의 상관관계는 일원배치 분산분석을 시행하고 성별, 부위, 방사선사진상의 특징과 진단명과의 상관관계는 교차분석을 통해 카이제곱검정으로 조사하여 다음과 같은 결론을 얻었다. 1. 187의 치근단병소 조직검사결과 치근단병소 중 치근단낭종의 비율은 28.34%, 육아종의 비율은 65.24%, 기타병소의 비율은 6.42%로 나타났다. 2. 방사선사진상 병소의 크기가 커질수록 치근단 낭종일 확률이 높았다(p<0.01). 3. 나이, 성별, 발병부위와 진단명사이에서 유의 한 상관관계가 없었다(p>0.05). 4. 병소의 경계가 명확하지 않은 것과 치근단육아종의 발생빈도는 통계적으로 유의한 상관관계를 보였다(p<0.01).

수종의 저장용액에서 치주인대세포의 생존율 비교

최원경,최병재,최형준,이종갑 大韓小兒齒科學會 1999 大韓小兒齒科學會誌 Vol.26 No.2

치아탈구 발생시 사고 현장에서 쉽게 구할 수 있는 저장용액을 이용하여 치주인대세포의 생존율을 비교해보고자 치주인대세포를 10%FBS함유 α-MEM에서 배양한 후 α-MEM에서 저장한 군을 대조군으로 하고 동일한 조건하에서 저온살균된 우유군, 멸균된 생리적 식염수군, 비자극성 타액군, 건조된 상태로 방치한 군을 실험군으로 하여 25℃ 실온에서 세포 배양 30, 60, 90, 120, 180분 후에 각 군에 대해 MTTassay를 시행하여 다음과 같은 결론을 얻었다. 1. 각 조사시점에서 실험군간의 비교에서는 모두 유의성있는 차이를 보였으며 저온살균된 우유군에서 치주인대세포의 생존율이 가장 높았고, 멸균된 생리적 식염수군, 비자극성 타액군, 건조된 상태로 방치한 군 순으로 점차 감소하였다.(P<0.05) 2. 각 실험군내에서 조사시점간의 비교에서는 치주인대세포의 생존율이 시간이 경과함에 따라 유의성있게 감소하였으나(p<0.05). 저온살균된 우유군에서 90-120분 경과 사이. 멸균된 생리적 식염수군에서 60-90분과 120-180분 경과 사이에서는 유의성있는 차이는 없었다.(P>0.05) 이상의 결론을 종합해볼 때 외상으로 인한 치아탈구 발생시 저장용액으로 HBSS가 추천되고 있으나 사고 현장에서 쉽게 구할 수 있고 치주인대세포의 생활력 보존에도 유리한 저온살균된 우유에 탈구된 치아를 담가오도록 추천할 수 있겠다. Preservation of the remaining periodontal ligament cells on an avulsed tooth is very important to the successful outcome of replantation. HBSS is recommended as the most suitable storage medium for the avulsed tooth that cannot be replanted immediately. But their availability near the site of an accident is doubtful. The purpose of this in vitro study was to compare periodontal ligament cells stored in different storage media obtained easily on th spot. Human periodontal ligament cells were collected from the premolar teeth extracted for orthodontic treatment. Cells were cultured in α-MEM culture medium containing 20% FBS, at 37℃ 100% humidity, in a 5% CO₂2 incubator. Cells were cultured in 96 well culture plate, 5×10⁴cells per well with α-MEM and incubated for 24 hours.After discarding the medium, those cells were cultured in α-MEM contained with 10% FBS, pasteurized milk, sterilized saline, unstimulated saliva and bench-dried state at 25℃ room temperature for 30, 60, 90, 120, 180 minutes respectively. And then each group was measured using MTT assay. The results were as follows. 1. Between the group of each time, there was statistically significant difference. Periodontal ligament cells viability was highest in pasteurized milk and was reduced stepwisely in sterilized saline, unstimulated saliva and bench-dried state(p<0.05) 2. between the time of each group, there was statistically significant difference (p<0.05) but was no statistically significant difference at 90 - 120 minutes in pasteurized milk and at 60 - 90 minutes and 120 - 180 minutes in sterilized saline(p>0.05). In conclusion, HBSS as storage medium of an avulsed tooth is not practical on the spot. Insteadily pasteurized milk can be recommended to maintain the periodontal ligament cells viability.

해수유동모델 결과의 3차원 가시화를 위한 GUI 구현

최우정,박성은,이원찬,구준호,서영상,김태현 한국지리정보학회 2004 한국지리정보학회지 Vol.7 No.3

해수유동모델 결과를 3차원적으로 가시화하기 위한 그래픽 유저 인터페이스를 구축하는 과정에서 지리정보시스템(GIS) 기술을 활용하였다. 연안역 관리에서 GIS 기법은 산재되어 있는 방대한 자료들을 저장하고 이를 3차원으로 가시화하는 기능을 제공하며 해석적, 통계적, 모델링 도구로써 주어진 상황에 적합한 데이터 변환이 가능하도록 해준다. 해수유동모델은 개방경계에서 조석, 바람, 수온, 염분, 강물 유입 및 태양복사 등과 같은 모델입력값을 부여함으로써 구동되며 대상해역은 진해만으로 하였다. 녈 연구에서는 국산 GIS 소프트웨어인 GeoMania (v2.5)를 사용하여 진해만을 대상으로 시뮬레이션된 해수유동모델 결과의 3차원 가시화 모듈을 구축하였다. This study presents an application of GIS technologies to construct the graphic user interface for 3-dimensional exhibition of the results obtained by ocean hydrodynamic model. In coastal management studies, GIS provide a receptacle for scattered data from diverse sources and an improvement of the 3D visualization of such data. Within the frame of a GIS a variety of analytical, statistical and modeling tools can be applied to transform data and make them suitable for a given application. A 3D hydrodynamic model was driven by time-dependent external forcing such as tide, wind velocity, temperature, salinity, river discharge, and solar radiation under the open boundary condition. The Jinhae bay was selected as a case study. Here, we have used GeoMania v2. 5 GIS software and its 3D Analyst extension module to visualize hydrodynamic model result that were simulated around the Jinhae bay.

농장 사육되는 타조에서 나타난 다리 기형의 증례 보고

최종윤,손화영,전무형,조성환,김혜성,류시윤,박배근,이영원,윤원기 충남대학교 수의과대학 동물의과학연구소 2001 動物醫科學硏究誌 Vol.9 No.-

Two farmed young ostrich chicks were applied to pathology laboratory at Chungnam National University. Grossly, one ostrich showed rotated tibiotarsus, the other showed rolled toes. Case 1 ostrich was hypertrophy of fibualis longus and tibial cranialis tendon and gastrocnemius tendon in crus, inflammation of flexor digitorum longus. In histopathological views, myocytes of fiburalis longus were showed hypertrophy and hyperplasia. It is not found any specific feature in X-ray of the case 2 ostrich. Limb deformities were detected frequently in farmed ostrich chicks in 2- to 3 weeks old. Limb deformities were an important cause of mortality in farmed ostrich chicks during the first 10weeks after hatch. Cause of limb deformities were considered a nutrition problem.

CGI 프로그램에서 클라이언트와 서버의 자동화된 상태정보 전달

최준용,유진호,장종표,방만원 木浦大學校 情報産業硏究所 1997 情報産業硏究誌 Vol.5 No.-

The HTTP Protocol composed of WWW's client/server model is unconnected and not keep state, so, there is one connection for one request. In this condition, it has no guarantee to memory which is needed in sequential processing, and HTTP Protocol has no choices to transfer the information from client to server's CGI or the information exchange. This paper uses the word 'key' instead of this 'state information'. We studied the key which creates automatically the HTML document for data search hierarchically in WWW environment and to confirm applied this to multimedia order and sale system of agricultural and marine products.

PC-to-PC 유형의 인터넷폰 사설교환시스템의 설계 및 구현

최준원,최재원 경성대학교 공학기술연구소 2003 공학기술연구지 Vol.10 No.-

최근 컴퓨터와 통신 기술의 발전으로 인해, 멀티미디어를 이용한 여러 가지 응용이 출현하고 있다. 그중에 인터넷의 발전과 함께 많은 성장을 하고 있는 인터넷폰이 핵심이 되고 있다. 본 논문에서는 교환시스템의 호제어와 인증 및 각종 부가서비스를 설계 구현하였다. 향후 다른 정보통신 교환시스템의 개발에 직접적으로 활용 가능함으로 그 기술적인 가치가 높다고 판단되며, PSTN망과 LAN 통신망이 결합되어 하나의 통신망을 구축하여 전화교환과 컴퓨터 통신이 가능하다면 기업의 설비투자에 있어 많은 비용절감이 이루어질 것이다. In due to the advent of recently the computer and communicate technology growth, make good use of variety of application our work are changing almost every day. Among the advent of the computer and communicate, the internet technology growth with development of Internet Telephony is the point. The subject of a thesis is a plan for the Call Control of PBX ,login and variety service added. It makes that PSTN and LAN are combined as one network. So, if it can do the PBX and Computer Communication will cut down on expense in plant investment of company.

XRD와 Mo¨ssbauer 분광법을 이용한 제주도 송이의 연구

최원준,고정대,홍성락 濟州大學校 基礎科學硏究所 2001 基礎科學硏究 Vol.14 No.2

송이는 화산 활동시 생긴 여러 물질가운데서 다공질의 화산암, 화산사, 화산회형태로 이루어져있다. 본 연구에서는 X-선 회절분석과 (57)^Fe Mo¨ssbauer 분광법을 이용하여 제주도 서부 4개 지역의 송이에 관하여 연구하였으며, 300K에서 X-선 회절피크와 300K와 77K에서 Mo¨ssbauer 스펙트럼을 측정한 결과 송이의 중요 구성물질이 quartz, olivine, pyroxene, ilmenite, hematite, magnetite임을 확인할 수 있었다. Scoria was made of volcanic materials which are porous volcanic rock, volcanic sand and volcanic ashes. In this study, we are reporting the results of measurements of the x-ray diffraction and (57)^Fe Mo¨ssbauer spectrum for the powder samples of scoria taken from four seperated western sites on Jeju island. The analysis of XRD peak at 300K and Mo¨ssbauer spectra at 300K and at 77K shows that the major compounds of Jeju island are composed of quartz, olivine, pyroxene, ilmenite, hematite and magnetite.