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Lee, Gun Sang,Lee, Myung Ki,Kim, Woo Jae,Kim, Ho Sang,Kim, Jeong Ho,Kim, Yun-Suk The Korean Neurosurgical Society 2017 Journal of Korean neurosurgical society Vol.60 No.1
Objective : We assessed the surgical results of bipolar release in 31 adult patients with uncorrected congenital muscular torticollis (CMT) and more than 12 months of follow-up. Methods : Thirty-one patients underwent a bipolar release of the sternocleidomastoid muscle (SCM) and were retrospectively analyzed. The mean follow-up period was 14.9 months (range, 12-30). The mean age at time of surgery was 30.3 years (range, 20-54). Patients were evaluated with a modified Lee's scoring system, cervicomandibular angle (CMA) measurement, and a global satisfaction rating scale using patient self-reporting. Results : The modified Lee's scoring system indicated excellent results in 4 (12.9%) patients, good in 18 (58.1%), and fair in 9 (29.0%) at the last follow-up after surgery. The improvements in neck movement and head tilt were statistically significant (p<0.05). The preoperative mean CMA was $15.4^{\circ}$ (range, 5.4-29.0), which was reduced to a mean of CMA of $6.3^{\circ}$ (range, 0-25) after surgery (p<0.05). The global satisfaction rating scale was 93.7% (range, 90-100). A transient sensory deficit on the ipsilateral lower ear lobe was noted in three cases. No significant permanent complications occurred. Conclusion : Bipolar release of the SCM is a safe and reliable technique for the treatment of CMT in adults.
윈드서핑선수 체력 트레이닝을 위한 프로그램개발에 관한 연구
이석인,주희철,손재윤 중앙대학교 스포츠과학연구소 2002 體育硏究 Vol.- No.16
The purpose of this research is to investigate training methods and physiological responses according to the indensity through analyzing researches in this area and develope program models for physical training in order to find an effective training method for windsurfing players. 1. Training for Muscular Strength Muscular strength is an important component for windsurfing player to move fast with less fatigue. Weight training is commely used to imporve muscular strength. It is proper for beginners to use loads in the range of 60% to 70% of one repetition maximum, and for athletes in the range of 80% to 100% of 1RM. It is required to do 1 rep at 12-15 RM for 1-2 seconds, and 1 rep at 5-10RM for 2-3 seconds. Moreover, it is adequate for beginners to do 3-5 sets, and for athletes to do 5-7 sets. Handling heavy weights in the pursuit of strength will require a recovery of 3-5 minutes between sets. As 48 hours should elapse between sessions, it is necessary to exercise at least three times a week. Finally, it is important to increase repetitions before increasing the load. The load should be increased by 3-5% of one repetiton maximum after 4 weeks. 2. Training for Muscular Endurance When these ways of training are conducted in good order, it has a good effect on windsurfing players: Chin→up→Hanging-out →Bar →Climbing the rope →Jumping in a crouch →Hanging the rope →Jump over the bench →lifting a sandbag on the top side of the foot →Throwing the ball in the position of lying down 3. Whole body endurance Whole body endurance is usually regarded as cardiovascular endurance or stamina. To improve the whole body endurance, players are trained by the methods such as long-distance run, Country cross, rope jumping, and swimming. Long-distance running is an essential item for windsurfing players to build up their physical strength, especially cardiovascular function. It is effective to run 4-5km at 150-170 heart rates. For rope jumping, exercise 3-5 rounds and do 3 minutes for one round. The significant components of physical strength for windsurfing players are muscular strength, muscular endurance, and whole body strength. The training for these factors would have an important influence on windsurfing players.
이석윤 한국통상정보학회 1999 통상정보연구 Vol.1 No.2
A main purpose of this study is to examine the international mercantile custom of Russia. After the collapse of the Soviet Union, the new Russia have to make a relation external world for economic development. The geostrategic importance and natural resources in Russia attracted constant interest o western countries. There are many difficulties in this country and hundreds of Korean and western companies already operate in Russia and their activities are more and more of a long-term character. So, the settlements of trade and understanding between Korea and Russia are very important. It includes effective methods of trade settlement, factors of successful negotiation, differences of trade customs and businessenvironment.
하윤석,강성진,허소영,이지현,김민정,김종국,김광수 고신대학교 의과대학 2009 고신대학교 의과대학 학술지 Vol.24 No.1
Thunderclap headache is a hyperacute, severe headache that is so named because the pain strikes suddenly and severely, and is sometimes a sign of a medical emergency. We report a case of pheochromocytoma in the urinary bladder in a 48-year-old woman who presented with recurrent thunderclap headache after voiding and exercise. So we think thunderclap headache during or immediately after micturition may be an important diagnostic clue of bladder pheochromocytoma.
전단보강근량에 따른 초고강도 콘크리트를 사용한 고층형 내력벽의 이력거동
윤현도,연길환,정수영,윤석천,이창갑 忠南大學校 産業技術硏究所 1995 산업기술연구논문집 Vol.10 No.1
Three one fourth scale models using ultra high-strength concrete(f' =704 kg/㎠) are tested under the combined action of a constant axial and a horizontal load cyclically to failure. Such specimens are considered to represent the critical 3-story of low part in 60-story tall building of a structural wall system in area of high seismicity. The amount of vertical reinforcement and the level of applied axial stress are identical for the three wall tested. The cross-section of all walls is barbell shape. The aspect ratio(h /l ) of test specimen is 1.8. The primary objectives of this paper are to investigate the influence of the amount of horizontal reinforcement on the lateral resistance, failure mechanism, ductility and energy-dissipation capability of walls with ultra high-strength concrete. In contrast to what is widely believed, the horizontal web reinforcement does not appear to have a significant effect on shear capacity. Certainly, since the reduction of the web horizontal reinforcement to almost half the value specified by building codes doesn't affect the failure load, this effect in not accounted for by the truss analogy concept. The results obtained have helped to identify the causes of wall failure and have demonstrated that the concepts underlying current ACI Building Code provisions for the design of walls conflict with the observed structural behavior. It has been found that shear resistance is associated with triaxial compressive stress conditions that develop in the compressive zone of the section at the base of the wall.
도시근로자 가계의 통신비 변화 분석 : 1991-1999
이희숙,전윤숙 충북대학교 교육 ·생활연구소 생활과학연구센터 2002 생활과학연구논총 Vol.6 No.1
The purpose of this study was to find the changes of communication expenditure patterns for last 10 years(1991-1999)through 1) marginal propensity to consume, 2) income elasticity, and 3) influencing factors on consumption among urban working households. The data was drawn from 'Annual Report on the Family Income and Expenditure Survey' by National Statistical Office, Republic of Korea from 1991-1999. For data analysis, frequency, percentile, mean, and multiple regression analysis were utilized by the SAS window program. The major results were as follows; 1) the level of expenditure and portion of expenditure in communication have increased during 1991-1999. The level of expenditure was found to be 16,910 Won in 1991 and 54,472 Won in 1999. And portion of expenditure was found to be 1.9% in 1991 and 4.0% in 1999. 2) MPC has increased during 1991-1999. MPC was found to be 0.0046(1,000 Won) and has increased dramatically since 1995. 3)Income elasticity was found to be between 0 and 1 during 1991-1999. Especially, for cellular phone income elasticity was found to be over 1 in 1995 and has changed to below 1 since 1996. 4)Income and number of employed family members were found to be the most important factors influencing communication expenditures. Income factor showed positive relationship with he level of expenditure, whereas negative relationship with portion of expenditures. Number of employed family members factor showed positive relationship with portion expenditure.