• Journal of Audiology & Otology
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• 제25권3호
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• pp.119-123
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• 2021

Background and Objectives: The influence of music training on different areas of the brain has been extensively researched, but the underlying neurobehavioral mechanisms remain unknown. In the present study, the effects of training for more than three years in Carnatic music (an Indian form of music) on the discrimination ability of different areas of the brain were tested using P300 analysis at three electrode placement sites. Subjects and Methods: A total of 27 individuals, including 13 singers aged 16-30 years (mean±standard deviation, 23±3.2 years) and 14 non-singers aged 16-30 years (mean age, 24±2.9 years), participated in this study. The singers had 3-5 years of formal training experience in Carnatic music. Cortical activities in areas corresponding to attention, discrimination, and memory were tested using P300 analysis, and the tests were performed using the Intelligent Hearing System. Results: The mean P300 amplitude of the singers at the Fz electrode placement site (5.64±1.81) was significantly higher than that of the non-singers (3.85±1.60; t(25)=3.3, p<0.05). The amplitude at the Cz electrode placement site in singers (5.90±2.18) was significantly higher than that in non-singers (3.46±1.40; t(25)=3.3, p<0.05). The amplitude at the Pz electrode placement site in singers (4.94±1.89) was significantly higher than that in non-singers (3.57±1.50; t(25)=3.3, p<0.05). Among singers, the mean P300 amplitude was significantly higher in the Cz site than the other placement sites, and among non-singers, the mean P300 amplitude was significantly higher in the Fz site than the other placement sites, i.e., music training facilitated enhancement of the P300 amplitude at the Cz site. Conclusions: The findings of this study suggest that more than three years of training in Carnatic singing can enhance neural coding to discriminate subtle differences, leading to enhanced discrimination abilities of the brain, mainly in the generation site corresponding to Cz electrode placement.

• 한국임상수의학회지
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• 제19권2호
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• pp.272-275
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• 2002

A retrospective analysis was performed with 30 cases of canine urolithiasis presented in the period between January and December 2001 The miniature schnauzer (6 cases), maltese (5 cases) and Shih Tzu (4 cases) had higher incidences than other breeds. Canine urolithiasis occurred from one year till 12 years, but the most prevalent age was 3 years. Urinary calculi occurred more often in males (63%) than females. The most prevalent anatomic locations of calculi were urinary bladder (8 of 22 cases) and urethra (13 of 22 cases) in males and urinary bladder (10 of 18 cases) in females. The major mineral component of calculi was struvite (72%). In male dogs, out of 15 cases, 10 cases were struvite and 5 cases were calcium oxalate uroliths. And, in female dogs, 8 of 10 cases were struvite. In some cases, mineral composition and urine pH was not matched. In conclusion, in the dogs with predisposing factors for urolithiasis, regular examination or proper diet should be added to prevent the disease. And the mineral composition of calculi should not be predicted solely by the pH or crystal component of urine.

• 한국안광학회지
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• 제2권1호
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• pp.133-143
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• 1997

국내의 시력분포를 조사하기위한 다양한 조사가 있었으나 거주지역주민을 대상으로 한 성인의 시력 통계치가 전무한 실정이므로 본 연구에서는 구리시의 지역주민 중 성인을 대상으로 굴절이상의 통계치를 조사하였다. 시력을 spherical equavalent 기준으로 분류할 때 정시안이 총 대상안의 32.0%. 굴절이상안이 총 대상안의 68%(근시 56.6%, 원시 11.4%)를 차지하는 것으로 나타났으며, 안과병원의 외래환자일 때보다 매우 높은 비정시안의 분포를 나타내고 있다. 전체 굴절이상안 중 근시성 굴절이상안이 83.3%로 1968 년 76.3%, 1975년 76.9%에 비하여 점점 증가하는 추세를 나타내고 있으며, 원시성 굴절이상안은 1968년 19.4%, 1975년 17.3%에 비하여 16.7%로 감소하였다. 굴절이상안의 종류별 분포는 전체 대상안 985안 중 근시성복난시가 전체 대상안 중 32.1%로 가장 많았고, 근시성 단난시 18.2%, 단순근시 14.2%, 원시성단난시 6.8%, 혼합난시 5.0%, 원시성 복난시 4.7%, 단순원시 3.6%의 순으로 나타났다. 등가구면굴절력의 분포를 기준으로 근시성 굴절이상안 중에서 경도 근시가 전체 대상안중 40.2%로 가장 많은 수를 차지하였고, 굴절이상안의 74.3%가 경도근시와 경도원시로 나타났다. 양안 굴절이상도 차이의 분포는 0.5~2.00 Dptr가 전체 대상자 중 29.0 %로 대부분을 차지하였고, 양안 굴절이상도 차이가 2.00 Dptr 이상인 부동시는 전체 대상자의 3.6%였다. 연령별 근시성 굴절이상도의 분포는 20대 대상안중 76.7%, 30대 대상안중 74.0%로 외국보다 매우 높은 분포를 보이고 있으며 이는 우리나라의 20대, 30대 성인들이 중고등학교 때의 과도한 입시부담으로부터 오는 많은 근거리 작업에서 그 원인을 찾을 수 있다. 연령별 원시성 굴절이상도의 분포는 20대 대상안중 2.9%, 30대 대상안중 0.6%, 40대 대상안중 6.3%, 50대 대상안중 16.0%, 60대 대상안중 63.9%로 연령이 증가할수록 점점 증가하는 경향을 보이고 있으며 40대 이후로 급격히 증가하고 있으므로, 우리나라의 노인성 시력변화의 시기는 40대로 추정할 수 있으며 노안의 발생시기 또한 일본의 42세와 비슷할 것으로 추정된다. 우안과 좌안의 굴절력을 비교한 결과 우안이 더 근시쪽의 이상을 나타내었으며 남녀의 굴절이상에서 유의한 차이점이 발견되지 않았다.

• Child Health Nursing Research
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• 제5권1호
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• pp.48-58
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• 1999

The purpose of this study was to determine the most accurate technique measuring the apical pulse rate, using three counting duration 15, 30 and 60 seconds, and two methods start ‘0’ and start ‘1’. The instrument used in the study was the EKG monitor, stethoscope and stopwatch. Data was analyzed by utilizing SPSSWIN program. General characteristics of the subjects were analyzed by frequency, percentile, mean, SD. The subject of this research is made up of 46 children and 20 nurses. The children were infants, & under the age of 5. They were hospitalised in PICU & NICU in 2 tertiary hospitals in seoul from Jan. 1. 1998 to Sep. 10. 1998. The measurement of starting 1 & measurement of starting ‘0’ used the T-test to find out the measurement error. Apical pulse duration of 15, 30, 60 seconds were used to find out measurement error, the measurement error depend on experience of Nurse were analyzed by using ANOVA. The result of this study are as follows. 1. When comparing the starting poin of apical pulse 0&1, starting with 1 the measurement error is less, but not statiscally significant. 2. When counting the apical pulse by 15, 30,60 sec. ; 60 seconds counting duration was more accurate, but not statistically significant. 3. The mean of measure error ; Group under 100/min, is 10.33 ; from 100 re 119/min, is 8.30 ; from 120 to 139/min, is 4.76 ; from 140 to 159/min, is 6.09 ; above 160, is 17.83. The differences of these groups are statistically significant. When 60sec were counted, under 140/min the mean of measurement error is 3.4. Also when 30 seconds were counted from 140/min to 159/min the measurement error is 7.14, above 160/min the measurement error is 16.4. That measurement mean is the smallest than the other durations. During the 15 sec. count the measurement error was the largest of them all. 4. By the experience of the nurses, the apical pulse count measurement error was discovered. Under a year experience this measurement error was the largest(11.09), 1 year to under 3 years, the error is the smallest(4.86). 3 year to under 6 years the error is 8.33, 5 years above the error is 6.11 but this is not statistical significant. Under a year experience when counting 15, 30, 60 seconds the error is the largest. The group of the nurses from a year to under 3 years, the measurement error is the smallest of all the groups. The result of the study is to determine the technique measuring the apical pulse rate, Hargest (1974), starting point ‘0’ is not proved. When the pulse rate increases the 30 sec measurement rate is accurate. Under 140/min the 60 sec measurement rate is the most accurate. Depending on the nurses experiences, there is a variable difference to the apical pulse rate measurement. Especially new nurses training courses should enforce the children’s pulse rate count and the basic vital signs.

• 벤처혁신연구
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• 제2권1호
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• pp.57-79
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• 2019

우리나라는 그동안 급속한 산업화와 경제발전, 의료기술의 발달로 평균 수명이 늘어나고 있는 추세이며, 특히 개관 초기에 1990년에 노인인구가 전체 인구의 5.1% 밖에 지나지 않았으나 30년이 지난 현재는 65세 이상 고령인구는 2015년 654만명, 2017년에는 14%로 고령사회 접어들어 들었다, 고령인구들이 일상적으로 여가를 보내는 시설 대표인 노인종합복지관에서 서비스 품질이 어르신들의 삶의 만족도를 높이는데 매우 의미있는 상관관계가 있다. 이에 따라 연구조사를 통해 어르신이 생각하는 바람직한 상태와 어르신이 경험하고 있는 현재 상태를 파악하고 그 차이를 찾아냄으로써 노인종합복지관이 제공해야할 정보와 서비스가 무엇인지 확인하고자 한다. 관악노인종합복지관은 설립 이래 30년 동안 지역사회의 어르신을 위한 전문적인 노인복지서비스를 제공하고 노인복지정책 수립에 경험적 바탕으로 많은 기여하고 있다. 향후 다가오는 국민소득 3만불시대, 국민연금 시대, 평균수명 100세 시대 등은 새로운 창조적 노인복지 프로그램 -양적 중심이 아닌 질적 중심인 프로그램, 다수가 아닌 소수 중심의 프로그램, 무료가 실비 프로그램, 수동적 프로그램에서 창조적 프로그램, 획일적인 대상 중심에서 대상의 다양성 등-의 변화는 향후 30년을 방향을 제시하고자 한다.

• 항공우주의학회지
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• 제30권2호
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• pp.51-53
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• 2020

In commemoration of Vol. 30, Issue 2, our journal prepared three review articles, two original papers, and a case report. The first review analyzed aircraft accidents caused by pilots' fatigue and presented a protocol to measure their fatigue, such as primary background survey, subjective drowsiness/arousal evaluation, sleep and activity log, sleep data, and performance measurement. The second review analyzed shift work patterns and work characteristics that may affect the fatigue of aviation mechanics. Also, desirable work principles for aviation mechanics (restrictions on working hours, appropriate rest hours, and night shift restrictions) were presented. The third review discussed the effects that allergic rhinitis can have on pilots (drowsiness and decreased arousal) and introduced a safe treatment method that can prevent these adverse effects. In the first original article, the ratio of 'incompatible (non-fit)' result in aerospace medical examination among Korean aircraft pilots for the past five years was investigated by age group and the common causes of nonconformity were analyzed. In the second original article, the prevalence, mortality, prevalence according to age groups, and regional characteristics of severe febrile thrombocytopenia syndrome were compared and analyzed in Korea and Japan for the past five years. Finally, in the case report, the cases of a patient diagnosed as gastrointestinal stromal tumors who received surgical treatment and chemotherapy were discussed, and the results of the judgment were presented.

• Journal of Chest Surgery
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• 제12권4호
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• pp.403-410
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• 1979

A Clinical analysis of 64 patients of thoracic empyema was done who received surgical intervention at Dept. of Thoracic Surgery of the Chosun University Hospital in the period of 3 years from September 1976 to October 1979. Following was the results: 1. Seven cases [10.9%] were under the age of 15 years, 16 cases [25%] was between 15-30 years and 41 cases [64.1%] was above the age of 30 years. A proportion of children and adult was 1:8. 2. Male and female ratio was 3:1. Right and left side pleural cavity ratio was 2.4:1. 3. Predisposing factors were pneumonia [35.9%] and pulmonary tuberculosis [28.1%]. 4. Most frequently encountered symptoms were dyspnea, cough, chest pain and fever in order. 5. Etiologic organisms were confirmed in 39 cases [86.7%] which requested in 45 cases. Staphylococcal infections were 11 cases and streptococcal, pneumococcal pseudomonas infection was infected in order. 6. Pneumothorax was associated with empyema on 21 cases [32.8%]; among those 13 cases [61.9%] were tuberculous in nature. 7. Sensitivity test was revealed that Minocin was most very sensitive drug, and next Erythromycin, Gentamycin and Penbrex in order. But most resistant drugs were Penicillin, Kanamycin, Streptomycin and Tetracycline in order. 8. Treatments were combined with antibiotics therapy and several surgical procedures for empyema. 26 cases [40.6%] were treated with closed thoracotomy drainage, 17 cases [26.6%] with open thoracotomy tube drainage and 9 cases decortication and 9 cases thoracoplasty. 9. 2 death cases occurred in 64 cases of thoracic empyema, and 79.7% cases were discharged with recovery and improvement.

• 한국운동역학회지
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• 제30권1호
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• pp.37-49
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• 2020

Objective: The purpose of this study was to investigate the injury factors of Taekwondo jumping kick during landing phase according to the experience of injury and to suggest a stable landing movement applicable to free style Poomsae. Method: The participants were non-injury group (NG), n = 5, age: 20.5±0.9 years; height: 171.6±3.6 cm; body weight: 65.7±4.4 kg; career: 5.0±2.7 years. Injury group (IG), n = 9, age: 21.0±0.8 years; height: 170.9±4.6 cm; body weight: 67.1±7.0 kg; career: 8.6±5.0 years. The variables are impact force, loading rate, vertical stiffness, lower limb joint angle, stability, balance, and muscle activity in the landing phase. Results: NG was statistically larger than IG in the gluteus medius (p<.05). The impact force, loading rate and vertical stiffness decreased as the landing foot angle, the ROM of lower limb joint angle and COM displacement increased (p<.05). Conclusion: Based on the results, it means that the landing foot angle plays an important role in the impact reduction during landing phase. It is required the training to adjust the landing foot angle.

• 한국어류학회지
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• 제17권2호
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• pp.112-122
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• 2005

Iksookimia longicorpa was investigated in the upper part of the Seomjin River in Korea from 2003 to 2004. It inhabited pebble and cobble bottoms with water-current velocities of 10~30 cm/sec and depths of 30~100 cm. This species is active during daylight hours from March to October but hibernated in the river bottoms in the winter season. The sex ratio of female to male was 1 : 0.65, and the female was 20~40 mm larger than the male. Female length frequencies in this population indicated that the 65~90 mm group is 1+years old, the 90~110 mm group is 2+ years old, and the 110~130 mm group is 3+ years old. The males developed a secondary sexual character, the lamina circularis at the base of their pectoral fin, after 13~14 months. The spawning season was from early to middle June with water temperatures of $20{\sim}24^{\circ}C$ individuals became sexually mature after the age of 2 years. The average number of eggs in the ovaries was $2,402{\pm}944$. Stomach contents were mainly Chironomidae, Ephemeroptera, Arcellidae and Algae. The feeding rate was highest in April and September; they did not fed in the winter.

• 대한한방내과학회지
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• 제19권1호
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• pp.343-352
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• 1998

This study involved 45 man-smoker outpatients of Han-lim oriental medical hospital from Feb. 1, 1998 to May 31, 1998. The results of this study are as follows ; 1. In sex distinction, the average age was 51.9 years with persons aged 25 to 83 years. 40's and 50's are the most as 12 persons (26.7%) respectively, and in order of the next 30's and 60's are 7 persons (15.55%) respectively, more than 71 years are 5 persons (11.10%), less than 30 years are 2 persons. 2. In occupational distinction, farmers are the most as 20 persons (44.4%), and then common desk workers are 11 persons (24.44%), fishermen are 8 persons (17.78%), the others are 6 persons (13.34%) in that order. 3. In the distinction of chief complaint, cough 39 persons (88.67 %), sputum 29 persons (64.44%), dyspnea 13 persons (28.89%), loss of appetite 7 persons (15,56%), chest pain 5 persons (11.11%) in that order 4. the effects after dosage are as follows ; favorable turn of sputum is the most 89.66%, cough 64.10%, chest pain 60%, dypsnea 53.85%, loss of appetite 28.57%. As a whole, more than 68.32% was improved. As the above, it was thought that Kwarujisiltang administration was evidently effective on a chronic disease of the respiratory organs.