태권도 선수의 인지된 스트레스가 대처기술에 미치는 영향

이건철 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.2

The aim of this study is to find ways to improve athletic abilities of Taekwondo players by analyzing the relationship between stress and coping skill in terms of their objects characters. The Stratified Cluster Random Sampling was employed to collect data from 180 Taekwondo players who are enrolled in middle and high schools as well as universities in Jeonbuk province during the year 2003. From the collected questionnaires asking those answers found to be responding to questions incompletely or insincerely were excluded from the analysis. The selected answers were entered in computer, processed through SPSS/PC program and analyzed by means of factor analysis, ANOVA, Pearson correlation and multiple regression analysis. Following conclusions could be drawn from the surveyed data as above: First, with regard to the stress in relation to objects characters of Taekwondo players, a statistically significant difference was revealed in such factors as background of Taekwondo players in terms of the stress before a game, the stress after a game, the athletic performance stress, the interrelational stress, the recreational stress, the stress during training, the stress during game as well as social stress. Second, with regard to the stress in relation to objects characters of Taekwondo players, a statistically significant difference was revealed in such factors as concentration. coaching ability in terms of coping skill Third, as to analysis of the correlation between stress and coping skill of Taekwondo players, significant correlation was found in goal-setting and spiritual preparedness, freedom from anxiety in terms of stress before a game, and in goal-setting. concentration and coaching ability in terms of such variant as results of game, and in freedom from anxiety and coaching ability in terms of variant like personal relationship, and in freedom from anxiety in terms of recreational variant, and in goal-setting and spiritual preparedness, conviction and motivation for achievement, freedom from anxiety in terms of variant during training. As a variant during game, a correlation was confirmed in freedom from anxiety and coaching ability. But a correlation was found in coping with difficulties, freedom from anxiety as a social variant. Forth, with regard to impact of Taekwondo players' stress on coping technique, it turned out that stress exercised influence upon social variant in coping with difficulties, upon performance of players in stressed situation before and during game, upon goal-setting in concentration, upon freedom from anxiety during training and playing and upon conviction and motivation for achievement during training and after game. No stress, however, seemed to exercise impact on coaching ability.

치성감염에 의해 발생된 후측인두부 및 종격동 농양

이승호,정종철,김건중,정주성,유선열,박문성,김창룡 大韓顎顔面成形再建外科學會 1996 Maxillofacial Plastic Reconstructive Surgery Vol.18 No.4

Odontogenic infections are usually locally confined, self-limiting processes. However, under certain circumstances, they may break through the bony, muscular, and mucosal barriers and spread into contiguous fascial spaces or planes far from the initial site of involvement, resulting in severn life-threatening complications, such as retropharyngeal spread, suppurative mediastinal extension, airway obstruction, pleuropulmonary suppuration, and hematogenous dissemination to distant organs. The mortality arte for mediastinitis from odontogenic infection ranges from 40% to 60%. Therefore rapid evalution and treatment is essential with a combination of life support, antibiotic therapy, and surgical intervention. Recently, we experienced three cases of retropharyngeal and mediastinal abscesses secondary to odonogenic infections. In all patients, early diagnosis was possible by CT scanning and physical examination. The prognosis was good in all patients by using urgent aggressive surgical and antibiotic therapy.

지방정부 행정서비스에 대한 주관적 평가 : 영천시를 중심으로 The Case of Yeong-cheon City

송건섭,이승철,유영애,이소영 大邱大學校 社會科學硏究所 2003 社會科學硏究 Vol.11 No.1

이 글은 지방정부의 민원행정서비스 만족도를 평가하고, 개선방안을 제시하는데 목적을 두었다. 연구는 경북 영천시를 대상으로 설문조사를 실시하여 분석하였다. 분석결과, 첫째, 민원행정서비스는 친절하고 신속하게 이루어졌지만, 과거 획일적이고 공급자 위주의 행정을 탈피하여 수요자 중심의 행정을 전개하기 위해 서비스 차별화 전략이 필요하다. 둘째, 민원행정서비스에 대한 만족도는 전체적으로 매우 높은 것으로 나타났다. 특히 민원사항에 대한 충분한 설명과 지식, 정보제공, 민원인을 대상으로 한 간단한 문서교육 등이 필요하다. 셋째, 민원시책에 대해서는 만족도가 낮았다. 이를 제고하기 위해서는 전체주민을 고려한 행사, 다양한 방법 (각종매체, 모임)을 통한 홍보활동전개, 특정한 날을 정하기보다는 상시적인 행사, 시의 편리한 시간에 행사 일을 맞추기보다는 주민의 시간을 고려한 행정 등이 필요하다. 마지막으로 민원행정서비스에 대한 개선책으로 각종 법규정비의 간소화가 중요하다. 또 복합민원만을 one-Stop, non-stop으로 처리할 수 있는 별도의 민원 부서가 필요하다. This paper propose to evaluate satistaction and policy orientation of civi1 service in Local government. Its analyze through questionnaire method in case of Yeong-cheon city, Gyeongbuk. The results of this study are as follows: First, civil service enforce friendly and speed, but its need defficiental strategy of civil service to deployment custommer-oriented administration deviate from fixed supply-oriented administration of the past. Second, the satisfaction of civil service totally high. Especially, its need explanation and knowledge sufficiently for civil service, furnishment of information, document education for citizen etc. Third, the satisfaction of civil program somewhat low. In order to the rise service program satisfaction, local government should open citizens’ events, public relation through mass media, civil conference, simplicity of law etc.

중앙안면골 골절 환자에서의 이차 비성형술

김건중,이정삼,최재선,민홍기,정종철 大韓顎顔面成形再建外科學會 1996 Maxillofacial Plastic Reconstructive Surgery Vol.18 No.4

Nasal bone fracture is common in mid-facial trauma patients. In these patients, facial bone and nasal bone fracture are reducted at same time, but definite nasal reduction is diffidulty in these patients because of nasotracheal intubation during general anesthesia and facial swelling in early facial trauma patients. If nasal packing and MMF are needed, there are difficult to maintain the reducted nasal bone because of some difficulty in airway maintenance after nasal packing and increasing the patient discomfort. So postoperative nasal deformity is more common in these combined patients. Secondary rhinoplasty is necessary in these patients who have deformed nasal bone, and there are many methods and materials for secondary rhinoplasty. But if primary nasal bone was reducted symmetrically, it is easy in secondary rhinoplasty. We present 7 cases of secondary rhinoplasty in mid-facial trauma patients who had combined nasal bone fracture. In these patients, primary nasal bone reduction carried with closed reduction method during primary facial bone reduction. About 6 months later, we performed secondary rhinoplasty with iliac bone and alloplastic materials. So we report these cases with literatures.

Bipolar release와 Z-Plasty를 이용한 선천적 사경증의 치험례

최재선,이정삼,김건중,정종철,민흥기 大韓顎顔面成形再建外科學會 1996 Maxillofacial Plastic Reconstructive Surgery Vol.18 No.3

Congenital muscular torticollis(CMT) is a disorder characterized by shortening of at least one of the cervical muscles and tilting of the head to opposite side. The most commonly affected muscle is the sternocleidomastoid muscle. Pathogenesis and etiology of congenital muscular torticollis were not clearly identified, but considered as fetal malposition, birth trauma, vascular accident, heredity, infection and CNS pathology. Untreated congenital muscular torticollis often causes facial asymmetry and This is the rasult of tensional rotation of the face toward affected side. So early treatment may prevent facial and neck asymmetry and limitation of neck movement. There are many treatment methods in CMT, including conservative and operative method, but presently Bipolar release and Z-Plasty of SCM muscle has been introduced when the conservative treatment had failed. The benefits of this method are to preservation of the normal Neck V-contour and improvement of the neck motion. We treated CMT using Bipolar release and Z-plasty in two patients. After that the patients improved on the range of neck motion and maintained the normal V-conture of the neck, so we report two cases of CMT with literatures.

고정밀 연삭기용 주축시스템 설계

편영식,이건범,박정현,요꼬이 요시유끼,여진욱,안건준,곽철훈 한국공작기계학회 2003 한국생산제조학회지 Vol.12 No.3

Any one of the high precision spindle systems and guide way systems, the high stiffness of structure, the error compensation during assembly, high accuracy control system is inevitable technology for development of high precision machine tools. Especially, among these, design of spindle system is one of the most important technologies leading high precision of machine tool and high quality of manufactured products. A high speed and high precision spindle system which will be used for final machining of ferrule, is designed considering the effect of heat, cutting torque, cutting force, and work-piece materials. The detailed design and analysis process are presented.

Process development of oxalic acid production in submerged culture of Aspergillus niger F22 and its biocontrol efficacy against the root-knot nematode Meloidogyne incognita

Lee, Sang Il,Lee, Keon Jin,Chun, Ho Hyun,Ha, Sanghyun,Gwak, Hyun Jung,Kim, Ho Myeong,Lee, Jong-Hee,Choi, Hak-Jong,Kim, Hyeong Hwan,Shin, Teak Soo,Park, Hae Woong,Kim, Jin-Cheol Springer-Verlag 2018 BIOPROCESS AND BIOSYSTEMS ENGINEERING Vol.41 No.3

<P>Oxalic acid has potent nematicidal activity against the root-knot nematode Meloidogyne incognita. In this study, fermentation parameters for oxalic acid production in submerged culture of Aspergillus niger F22 at 23, 25, and 30 A degrees C were optimized in 5-L jar fermenters. The viscosity of the culture broth increased with increasing temperature. There was a negative correlation between oxalic acid production and the apparent viscosity; high volumetric productivity of oxalic acid was obtained at low apparent viscosity (less than 1000 cP), with a productivity of more than 100 mg/L h. When the apparent viscosity was over 2500 cP, the volumetric productivity decreased below 50 mg/L h. In addition, the volumetric mass transfer coefficient, K (L) a, positively correlated with volumetric productivity. When the K (L) a value increased from 0.0 to 0.017 /s, the volumetric productivity proportionally increased up to 176 mg/L h. When the temperature decreased, K (L) a increased due to the decrease in viscosity, leading to increased volumetric productivity. The highest productivity of 7453.3 mg/L was obtained at the lowest temperature, i.e., 23 A degrees C. The nematicidal activity of culture filtrate was proportional to the content of oxalic acid. Based on a constant impeller tip speed, oxalic acid production was successfully scaled up to a 500-L pilot vessel, producing a final concentration comparable to that in the 5-L jar.</P>

Comparison of Different Alpha-blocker Combinations in Male Hypertensives with Refractory Lower Urinary Tract Symptoms

Keon-Cheol Lee,조인래,Jong Gu Kim,Sung Yong Cho,Joon Sung Jeon 대한남성과학회 2011 The World Journal of Men's Health Vol.29 No.3

Purpose: We compared the efficacy and safety profiles of dose increase, traditional combination methods, and combining different alpha blockers in hypertensive males with lower urinary tract symptom (LUTS) refractory to an initial dose of 4 mg doxazosin. Materials and Methods: Between 2000 and 2005, 374 male patients with LUTS and hypertension unresponsive to 4 weeks of 4 mg doxazosin were enrolled. The subjects were randomly classified into 3 groups, 8 mg/day of doxazosin (D group), 4 mg of doxazosin plus 0.2 mg/day of tamsulosin (DT group), and 4 mg doxazosin plus 5 mg/day finasteride (DF group). Patients were evaluated based on their International Prostate Symptom Score (IPSS), quality of life (QOL), uroflowmetry and blood pressure (BP) and adverse events (AEs) at the baseline and 3 and 12 months after treatment. Results: The 269 patients (71.9%) were followed for at least 1 year (D group n=84, DT group n=115, and DF group n=70). The clinical parameters before and after initial 4 mg/day doxazosin were not different among the 3 groups. IPSS improvement after 3 months and maximal flow rate (Qmax) improvement after 3 and 12 months were significantly higher in the D and DT groups than the DF group (p<0.05). Sitting systolic and diastolic BP of the D group decreased larger than those of the other 2 groups (p<0.05). At least one of the AEs was reported by 29.0%, 19.3%, and 17.3% of patients in the D, DT, and DF groups, respectively. In particular, vasodilatory AEs of the D group (28.2%) were higher than those of other groups (p<0.05), and sexual function AEs of the DF group (10.9%) were higher than those of other groups (p<0.05). Conclusions: Doxazosin 4 mg plus tamsulosin 0.2 mg has comparable efficacy but less vasodilatory AEs than doxazosin 8 mg, and has superior efficacy to but comparable vasodilatory AEs to 4 mg doxazosin plus 5 mg finasteride in hypertensive male LUTS patients.

Fatal Clostridium difficile colitis without diarrhea related to fecal impaction

( Keon Cheol Lee ),( Chang-seop Lee ),( Jeong-hwan Hwang ) 대한내과학회 2015 대한내과학회 추계학술대회 Vol.2015 No.1

The clinical presentation of Clostridium difficile infection (CDI) is variable and includes diarrhea, colitis without pseudomembrane, pseudomembranous colitis, and fulminant colitis. On rare occasions, diarrhea may be absent in severe CDI. We describe a case diagnosed with fatal CDI associated with fecal impaction without diarrhea. A 71-year-old woman was admitted to our emergency room (ER) with a 3-day history of abdominal pain and distention. Before admission to our ER, intravenous cefepime and levofloxacin were administered during 8 days because of pneumonia in other hospital. The pneumonia resolved, but she complained constipation and abdominal discomfort about 5 days after the beginning of antibiotics. On arrival to our ER, abdomen was soft and distended, with decreased bowel sound and tenderness over whole abdomen. Abdominal X ray showed fecal impaction and ileus (Fig. 1A). Laboratory studies as follows: white blood cell, 56,500/mm3; platelet count, 552,000/mm3; albumin, 2.8 g/dL; blood urea nitrogen, 54 mg/dL; creatinine, 2.4 mg/dL; C-reactive protein, 210 mg/L; and procalcitonin, 17.3 ng/mL. Computed tomography (CT) without enhancement was performed, and the result revealed the diffuse wall thickening of large intestine as well as fecal material throughout colon suggestive of fecal impaction (Fig. 1B).Antibiotics were changed to intravenous vancomycin and meropenem. Levin tube was kept inserted and sigmoidoscopy for endoscopic decompression was conducted. There were no abnormal findings other than fecal material. On hospital day 5, no strain was yielded from initial and follow-up blood, urine and sputum cultures. Sigmoidoscopy was done to decompress abdominal distention again.Variable sized yellowish plaques with erythematous and edematous mucosa were observed accidentally, and pseudomembranous colitis was diagnosed (Fig. 2). We started oral vancomycin, intravenous metronidazole, and intravenous immunoglobulin immediately. On next day, however, the patient eventually expired.We recently encountered a fatal case of CDI presenting with fecal impaction in the absence of diarrhea and report this case herein. The clinicians should be aware that diarrhea may be absent in patients with severe CDI.

차세대 엔진제어기의 표준화 플랫폼 대응을 위한 차량용 통합반도체 개발

이건(Keon Lee),조범철(Beom-Cheol Cho),장두진(Doo-Jin Jang),이지행(Ji-Haeng Lee),우재혁(Jae-Hyuck Woo) 대한전자공학회 2020 대한전자공학회 학술대회 Vol.2020 No.8

This paper proposes an automotive ASIC to cope with the standardization platform of nextgeneration ECU(Engine Controller Unit). It is developed to secure cost competitiveness and efficiently develop a variety of powertrain controller lineups. Recently, according to the emission standards of automobiles, establishing a diverse powertrain portfolio and rapid development strategy has become an important task for automobile manufacturers. The architecture of the proposed automotive ASIC for the ECU integrated 8 types of power supply, 24 channels of driver, 3 channels of communicator, and 2 channels of real-time counter. And it was implemented with a 65V 0.11um BCD process technology for vehicles.