초등학생의 태권도 수련 프로그램과 정신력과의 관계

김옥주,김응식 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.4

This study had a purpose to define The Relations Between Taekwondo Training Programs and Mental Strength of Elementary School Students. In order to achieve this study objective, the Delphi Technique Analysis and the Quantitative Research were carried out. The analysis of Taekwondo training programs by the Delphi Technique was performed by means of the 3rd analysis with 30 experts. And as for the Quantitative Research, the study subjects were targeted for the total 265 pupils composed of 224 boys and 41 girls who were selected by the Group Random Sampling. This study took the primary school students in 4~6 years as the population who were training Taekwondo in the gym which was located in Gwangju. The results of this study that based on the methods and procedures summarized as follows: Taekwondo programs on the basis of the background variables, school year and income level showed the statistically significant differences in the body-centered and the mind-centered programs among the types of Taekwondo training programs. And the statistically significant difference was shown about the income level in the play-centered programs. This result showed the fact that, in training Taekwonclo, pupils showed differences for adapting themselves to the contents of body-, mind-, and play-centered programs according to the contents of programs based on school year and income level which were parts of the background variables.

고등학교 운동선수에서 최대하 Treadmill 운동시 심폐기능의 변화와 산소섭취량의 추산법

배옥석,김형진,박재식,주영은 慶北大學校 醫科大學 1990 慶北醫大誌 Vol.31 No.3

고등학교 운동선수에서 최대하 treadmill 운동시험시 심폐기능의 변화를 구명하고 운동부하, 운동시간 및 심박수로부터 산소섭취량을 추산할 수 있는 회귀방정식을 유도하고자 15∼18세의 남자 고등학생 운동선수 14명과 비운동선수 16명을 대상으로 하여 Bruce법에 따라 treadmill 상에서 최대 운동능력의 80%에 해당하는 최대하운동을 실시하고 운동전, 운동중 및 운동후에 심박수, 혈압, 분시환기량, 탄산가스생산량 및 산소섭취량을 측정하였으며 운동 전후에 폐환기역학 검사를 시행하였다. 심박수는 선수군에서 안정시의 71.9±1.3회로부터 운동중 178.0±2.0회까지 증가하여 최대심박수의 81.2±2.3%에 달하였고 비선수군에서는 안정시의 81.8±2.4회로부터 182.6±1.1회까지 증가하여 최대심박수의 79.6±2.0%에 달하였다. 선수군의 심박수는 비선수군에 비해 전 실험기간에 걸쳐 유의(P<0.01)하게 낮은 값을 유지하였다. 분시환기량은 선수군에서 안정시의 5.1±0.6 L/min로부터 운동중 63.0 L/min까지 증가하였고 비선수군에서는 안정시의 5.2±0.5 L/min로부터 51.2 L/min 까지 증가하였으며 양군 사이에는 유의한 차이가 없었다. 산소섭취량은 선수군에서 안정시 1.0±0.4 ㎖/㎏/min로부터 운동중 32.6 ㎖/㎏/min까지 증가하여 최대산소섭취량의 72.9%에 달했으며 비선수군에서는 안정시 1.4±0.3 ㎖/㎏/min로부터 28.9 ㎖/㎏/min까지 증가하여 최대산소섭취량의 70.3%에 달하였다. 선수군의 산소섭취량은 비선수군에 비해 계속 낮은 경향을 보였다. Treadmill 속도 및 경사도와 산소섭취량 간의 중회귀분석 결과 중상관계수 0.9998로서 높은 상관관계를 나타내었다. Bruce법에 따른 운동시간과 산소섭취량 간의 회귀분석 결과 1차함수 회귀식에 대한 상관계수는 0.999였으나 3차함수 회귀식에 대한 상관계수는 0.99999로서 극히 높은 상관관계를 나타내었다. 심박수와 산소섭취량 간에는 상관계수 0.998 및 0.992로서 대체로 높은 직선적 상관관계를 나타내었다. 폐기능검사 결과 안정시 FVC, FEF_(0.2-1.2L), FEF_25% 및 MVV는 선수군에서 비선수군에 비해 유의(P<0.05)하게 높았다. 운동후 폐기능검사 성적은 비선수군에서는 안정시보다 저하된 경향을 보인데 비해 선수군에서는 향상된 경향을 보였다. The cardiorespiratory function was evaluated during and after a submaximal treadmill exercise and some regression equations were derived for estimation of oxygen uptake from exercise load, exercise time and the heart rate. A total of 30 high school boys, of whom 14 were athletic and 16 non-athletic, performed a submaximal treadmill exercise according to the Bruce protocol to the point when 80% of their maximum exercising capacity were reached. The heart rate, blood pressure, minute ventilation, CO_2 production and O_2 uptake were measured before, during and after exercise, and the pulmonary function test was performed before and after exercise. Heart rate was increased from 71.9±1.3 beats/min at rest to 178.0±2.0 during exercise which was 81.2±2.3% of the maximum heart rate in athletes, and from 81.8±2.4 beats/min at rest to 182.6±1.1 which was 79.6±2.0% of its maximum in non-athletes. Athletes showed significantly (P<0.01) lower heart rate than non-athletes throughout the experimental period. Minute ventilation was increased from 5.1±0.6 L/min at rest to 63.0 in athletes and from 5.2±0.5 L/min to 51.2 in non-athletes. Athletes and non-athletes showed no significant difference. Oxygen uptake was increased from 1.0±0.4 ㎖/㎏/min at rest to 32.6 which was 72.9% of maximum oxygen uptake in athletes, and from 1.4±0.3 ㎖/㎏/min to 28.9 which was 70.3% of the maximum in non-athletes. Athletes showed consistently lower oxygen uptake than non-athletes. Multiple regression analysis between treadmill speed and grade and the oxygen uptake showed a high correlation coefficient of 0.9998. A first order regression analysis between exercise time and oxygen uptake showed a correlation coefficient of 0.999, while a third order regression analysis showed an extremely high correlation coefficient of 0.99999. The heart rate and oxygen uptake showed a linear regression with a reasonably high correlation coefficient of 0.998 and 0.992. The pulmonary function test revealed significantly(P<0.05) higher FVC, FEF_(0.2-1.2L), FEF_25% and MVV at rest in athletes than in non-athletes. After exercise, athletes showed enhanced pulmonary function compared with the resting state while non-athletes showed more or less decreased.

Spermine에 의한 흰쥐 복강 비만세포의 히스타민 유리와 Camp, Cgmp 수준변동에 미치는 상백피의 효과

채옥희,양문식,이무삼 大韓免疫學會 1996 大韓免疫學會誌 Vol.18 No.3

Cortex Mori(Morus alba L.), the root bark of mulberry tree, has been used as an antiphlogistic, diuretic, and expectorant in Korean herbal medicine. Previous studies demonstrated that phenolic extract of Cortex Mori has a hypotensive effect in rabbits and hot water extract of Cortex Mori has an inhibitory effects on spermine and compound 48/80-induced mast cell degranulation and histamine release from rat peritoneal mast cells(RPMC). The purpose of this study is to determine whether Cortex Mori could affect the intracellular levels of cAMP and cGMP of RPMC by spermine which has been known as activators to increase cytoplasmic Ca" concentration by stimulating transmembrane Cat+ transport and mobilizing intracellular calcium, and release histamine from RPMC ultimately. Morphological changes of RPMC by spermine alone or Cortex Mori plus spermine were observed on the inverted light microscope. Various doses of spermine(10, 5, 1, 0.5, 0.1mM) were added into RPMC suspension (106cells/ml) pretreated with or without various doses of Cortex Mori(100, 50, 10, 5, lmg/ml) at 37°C for 10 minutes. After incubation, the amount of hitamine in supernatant, intracellular cAMP, and cGMP levels of RPMC were measured by radioisotope enzymatic histamine assay, cAMP and cGMP radioimmunoassays. Results were 1) the spermine(lOmM)-induced degranulation and histamine release from RPMC pretreated with Cortex Mori were significantly inhibited, compared to those of control without Cortex Mori pretreatment, 2) the cAMP and cGMP levels of unstimulated RPMC were 17.5 ± 1.9 and 120 x 10-3± 20 pmols, respectively, 3) after the addition of the spermine, the intracellular levels of cAMP were decreased and those of cGMP were increased, 4) dose dependent fashions of cAMP and cGMP levels of RPMC were induced by increased concentrations of spermine, 5) Cortex Mori increased the cAMP levels(200.0± 11.4%) and decreased the cGMP levels (22.5±4.2%) of RPMC remarkably, compared to those of normal control, and 6) the spermine-induced cAMP levels of RPMC pretreated with Cortex Mori weresignificantly increased, compared to those of positive control without Cortex Mori pretreatment and the spermine-induced cGMP levels of RPMC pretreated with Cortex Mori were remarkably decreased, compared to those of positive control without Cortex Mori pretreatment. From the above results, it is suggested that Cortex Mori contains some substances to inhibit the spermineinduced mast cell activation so as mast cell degranulation, histamine release, and that its inhibitory effect may occure via specific mechanisms of increasing of intracellular cAMP levels or blocking of increasing of intracellular cGMP levels.

모드해석 데이터를 이용한 파라미터 개선법

張仁植,金玉求 홍익대학교 산업기술연구소 2002 産業技術 Vol.12 No.-

Model parameter updating procedure using a structural model is based on the discrepancies between analytical and experimental results. In this paper, several beam models are utilized to detect modal frequency differences and errors in physical parameters, Young's modulus and mass density, are calculated using the differences. Impact test is carried out for simple beam and beams with 1, 3, 7 holes to obtain natural frequencies and mode shapes. Updated parameters are compared with those of analytical model to check the effect of the holes. The results show that the beam with holes become weak because of the effect of the holes. The results of this research can be used to calculate the updated mass and stiffness matrices to update modal data.

마산시 일원의 소음분포 특성에 관한 연구

채건식,이수대,오상범,김희숙,박옥수 경남대학교 환경문제연구소 1992 환경연구 Vol.14 No.-

In our study, the noise levels of the schools, the hospitals and the apartment complexes located near the main street in Masan city were computed by the computer simulation method. The sourse of noise were mainly traffic noise. The noise level chart was attained and compared with the values which was investigated in 1988. The noise values of hospitals, schools and apartment complexes were generally increased by 0 ~3 dB over those of 1988. The noise volues of twenty nine schools, seven hospitals, twenty two apartments and twenty three apartment complexes were higher than the international allowance(55dB) for city. But the noise levels of eighteen schools(62%), tow hospitals(29%), nine apartments(41%) and five apartment complexes(22%) were low than our national allowance(65dB) for city. The noise problems of three hospitals, six cohools, thirteen apartments, and nine apartment complexes were very critical. We have suggested possible improvement methods for the noise problems of the traffic.

포와송 방정식의 해

崔性春,崔玉植 嶺南大學校 基礎科學硏究所 1995 基礎科學硏究 Vol.15 No.-

It is shown that the solution of the simple electrostatic potential 1/r has the first and second derivatives and satisfies Poisson's equation.

원목열처리 방법이 표고버섯의 수확에 미치는 영향

조덕봉,최옥범,최충식,김재창 광주보건대학 1999 論文集 Vol.24 No.-

This study was performed to investigate the effect of log treatment on the harvesting and quality of Lentinus edodes. Effect of log Treatment on the pinning of Lentinus edodes was as follows. Nong-gi No. 3 of warm weather strain was the hightest pinning( 100%), San-jo No. 5 and Mo-ri No. 290 of cold weather strains and control were 10%, 10%, 70%, respectively. Fruiting contents of Lentinus edodes did not show significant difference between sample with heat treatment and control in cold weather strains. Fruiting contents of Nong-gi No. 3 of warm weather strain with heat treatment were higher than those of control without heat treatment. There was similar result in indivisual weight of Lentinus edodes.

연합대학으로의 대학 체제 변화에 관한 연구

서재천,서강식,조붕환,지옥화,장원순 공주교육대학교 2010 公州敎大論叢 Vol.47 No.1

본 연구는 교육과학기술부의 경쟁력있는 국립대학을 만들고자 시행하고 있는 여러 정책 중 연합대학으로의 체제 변화 권유에 대한 장단점과 이해득실을 냉철하게 객관적으로 고찰해 보고자 수행되었다. 연구의 수행방법은 연합대학 체제의 추진이나 독자생존의 길 등 의사결정에 참고자료가 될 수 있도록 일본과 미국 등 외국의 연합대학 사례를 중심으로 수집 가능한 자료를 수집하여 고찰한 후 연합대학 체제 추진이나 독자생존의 장단점을 알아보았다. 본 연구의 결과는 여러 가지 외적인 상황 속에서 우리 대학이 독자적으로 생존하는 것이 가능한가, 또는 결국에는 독자적 생존의 대안으로 연합 내지는 통합의 길을 선택할 수밖에 없는가 하는 것은 그 누구도 쉽게 예단하기 어렵다는 것이다. 그러나 대학 구성원들이 미래를 선택하지 않는다 하더라도 외적인 요인에 의해 미래가 결정될 여지가 있으므로 지금부터라도 대학의 미래에 관한 공동의 지혜를 모아야 할 것으로 생각한다. 함께 머리를 맞대고 허심탄회하게 서로의 의견을 존중하며 서로에 대한 불신을 털어버리고 진정 대학의 미래를 위한 바른 선택이 무엇인가에 관한 논의와 연구가 꾸준하게 지속되어야 할 것으로 판단된다. This study was carried out in order to try to consider objectively merits and demerits regarding a system change invitation toward the Union University System and understanding gains and losses during a lot of policies to make a national college that there was competitiveness of Ministry of Education, Science and Technology of education. The results of this study is that no one is easy to predict, that it does as alternatives of an independent survival or select a street of integration and the Union University System in various external situations, finally. However, the University members does not select the future even if in various external factor because there is no doubt that the future will be decided from now on any University in the future regarding collaborative wisdom of the university, We thought it was going to do. Head with open-minded to respect each other's opinions and distrust each other confide you discard the truly University for the future, select the right to discuss and research can be sustained.

정보 공학 분야의 산학 협동에 관한 연구

박일남,곽윤식,채옥삼,이대영 慶熙大學校 材料科學技術硏究所 1991 材料科學技術硏究論集 Vol.4 No.-

In this paper, main subjects of information engineering are established, investigated and analized. Especially, cooperation methods between industry and university in area of VLSI (Very Large Scale Integration) are prooposed. Recent trend, educational condition, man power and R 7 D trend are investigated. Fuiture trends are analized, Finally, detail methods against this are proposed.

Clinical Experience of Single-Session Percutaneous Aspiration and OK-432 Sclerotherapy for Treatment of Simple Renal Cysts: 1-Year Follow-Up

Choi, Young Deuk,Ham, Won Sik,Kim, Won Tae,Cho, Kang Su,Lee, Joo Hyoung,Cho, Soung Yong,Seo, Ju Wan,Jin, Ok Hyun Mary Ann Liebert 2009 Journal of endourology Vol.23 No.6

<P>PURPOSE: To evaluate the efficacy and safety of single-session OK-432 sclerotherapy for the treatment of renal cysts. MATERIALS AND METHODS: From October 2005 to November 2006, 48 patients (61 simple renal cysts) were included in the study. Indications were determined as flank discomfort (n = 37) or patient reassurance due to increasing size (n = 11). The simple renal cysts were aspirated under ultrasonography (US), at which point OK-432 was injected into the cyst. Follow-up was performed with US or computed tomography scan every 3 months until 1 year. Complete regression of the renal cyst or more than 70% reduction in size with no symptoms indicated a successful treatment. RESULTS: Among 61 renal cysts of 48 patients, the overall success rate was 98.4%. Complete regression occurred in 46 cysts (75.4%), and more than 90% reduction in size occurred in 6 cysts (9.8%). A size reduction of 80% to 90% and 70% to 80% occurred in five (8.2%) and three cysts (4.9%), respectively. A size reduction less than 70% occurred in only one cyst (1.6%). The success of cyst regression was correlated with cyst volume. Clinical symptoms resolved in 100% of patients with symptomatic cysts, and there was no enlargement of the aspirated cysts at the 1-year follow-up. After the procedure, there were only some minor complications, such as mild fever, flank pain, and leukocytosis, which subsided with the conservative treatment. CONCLUSIONS: Percutaneous OK-432 sclerotherapy is simple, safe, and effective, and it can be an alternative first-line therapy for simple renal cysts.</P>