10주간 감각-운동 기능적 훈련이 중․고등학교 원반선수의 순발력, 민첩성, 평형성에 미치는 영향

최종환, 박광훈 忠北大學校 平生體育硏究所 2014 平生體育硏究所 論文集 Vol.26 No.-

The purpose this study intended to examine the effect of the 10 week sensory-motor functional training For this, subjects were assigned 12 discus throwers in Men's middle school and high school in C Province into two group of 6 people : the experimental group that was trained for the program involving 10 week sensory-motor functional training and the control group that was trained as a general training program to improve their agility, power and balance. The power motor ability(Standing long jump, shot-put) and the agility motor ability(20 m zigzag step test, side step test) of each group were measured before and after the training assigned each other and the dynamic balance ability test and single-leg stance were measured for balance ability test. After analyzing the ANCOVA on the pre-test and post-test, The study results were as followings: First the discus throwers trained by the 10 week sensory-motor functional training were better than the discus throwers trained bythe existing program for improving power and ability on the record of power motor ability(shot-put). Second, the discus throwers trained by the 10 week sensory-motor functional training were better than the discus throwers trained by the existing program for improving power and ability on the record of agility motor ability(side step test). Lastly, the discus throwers trained by the 10 week sensory-motorfunctional training were better than the discus throwers trained by the existing program for improving power and ability on the record of balance ability(single leg stance). For this reason, 10 week sensory-motor functional training will improve the power, agility and balance ability which are fundamental physical fitness for discus throwers. Therefore, it may imply that the 10 week sensory-motor functional training results in good competitions for all discus throwers.

소록도 官舍施設의 建築的 特性에 관한 硏究

최인환,정준현,손광제 대구대학교 과학기술연구소 1998 科學技術硏究 Vol.5 No.4

This study is to analyze the architectural characteristics of official houses in Sorok Island. On twenty official house planes, which were constructed during 1927-1940, were surveyed and analized about house type, plane construction style and unit space scale. In the result of this study, first, official house type in Sorok Island was classified into multi-family type and one-family type, plane construction style was classified into the wooden verandah style, compact style and corridor style of the original housing form of Japanese. Second, unit plane was composed mainly of 2∼3 TADANII and an ONDOL room, stand-up kitchen style, bathroom, toilet etc. and added living room of Westem Style in the large scale plane. Third, for the seperation of rooms HUSIMA(wooden sliding doors) had been installed, and TADANII size was used 「Kyung Kahn」 scale of Japanes. In the unit space scale, multi-fanuly type is smaller size than Japanese house, and one-family type is common size.

스포츠活動參與에 影響을 미치는 社會心理的 要因 分析

崔忠煥,金廣基 중앙대학교 스포츠과학연구소 2000 體育硏究 Vol.- No.13

The purpose of this study was to analysis the socio-psychic variables which influence participation in sports and physical activities. The results are following like this; 1) The hypothesis which social variables have an affirmative effect on participation in sport activities, show to reach the level. Therefore, the social variables have influence on participation in sport activities. 2) The hypothesis which psychic variables have an affirmative effect on participation in sport activities, were showed to reach the level. Therefore, the psychic variables have influence on participation in sport activities. 3) On participation in sport activities, the favorable degree for sport were showed to increase on the younger. 4) Every individual make choice of sport item to opportune socio-psychic cause, according to increase on age. This results have proved to be the determination rationalizing to varying on participation items in sport activities.

시험관내 YAC-1 세포주의 방사선 및 항암제감수성에 관한 연구

최의환,고광준 大韓口腔顎顔面 放射線學會 1997 Imaging Science in Dentistry Vol.27 No.1

The purpose of this study was to aid in the prediction of tumor cell tolerance to radiotherapy and/or chemotherapy. For this study, cell surviving curves were obtained for mouse lymphoma YAC-1 cell line using semiautomated MTT assay. 2, 4, 6, 8, 10Gy were irradiated at a dose rate of 210cGy/min using ?Co lrradiator ALDORADO 8. After irradiation, YAC-1 cell lines(3×10⁴cell/ml) were exposed to bleomycin or cisplatin for 1 hour. The viable cells were determined for each radiation dose and/or each concentration of drug at the 4th day. And they were compared to control values. The obtained results were as follows: 1. The surviving curve with gentle slope was obtained after irradiation of 2, 4, 6, 8, 10 Gy YAC-1 cell line. 2. The cytotoxocity of bleomycin or cisplatin was increased significantly at all concentration of 0.2㎍/ml, 2㎍/ml and 20㎍/ml on YAC-1 cell line (P<0.01). And the cytotoxicity of cisplatin was greater than that of bleomycin at all concentration on YAC-1 cell line (P<0.01). 3. There were no significant differences of surviving fractions among 4Gy, 6Gy and 8Gy after irradiation of each radiation dose with 2㎍/ml of bleomycin compared with irradiation only on YAC-1 cell line. 4. There was significant difference of surviving fraction between 2Gy and 10Gy after irradiation of each radiation dose with 2㎍/ml of cisplatin compared with irradiation only on TAC-1 cell line (P<0.05). 5. There were significant differences of surviving fractions between the groups of irradiation only and the groups of irradiation with 2㎍/ml of bleomycin or cisplatin at all doses of 2, 4, 6, 8 and 10Gy on YAC-1 cell line (P<0.05).

방울토마토중 Dichlofluanid 및 Iprodione의 생산단계별 잔류농약 경시변화

최규일,성기용,정태균,이주환,허장현,고광용,이규승 한국환경농학회 2002 한국환경농학회지 Vol.21 No.4

방울토마토의 생산단계에서의 잔류허용기준 설정과 수확후 저장기간중 경시변화 및 세척에 의한 잔류농약의 감소양상을 파악하였다. 해당약제를 안전사용기준의 기준량 및 배량을 각각 시설재배 포장에서 살포후 10일간 잔류양상을 조사하였고, 실온 및 냉장조건 하에서의 저장실험 및 세척에 따른 전류농약의 잔소량을 파악하여 생산단계부터, 출하, 저장, 소비단계까지의 잔류량을 예측할 수 있는 모델개발을 위한 자료로 이용하고자 연구를 수행하였다. Dichlofluanid와 iprodione은 포장조건에서 반감일수가 기준량 2.2, 3.3일 이었으며, 배량은 3.5, 5.4일로 나타났다. 저장조건하에서의 약제별 반감기는 포장조건보다 잔류량의 감소속도가 느린 것으로 나타나 반감일수가 증가하였고, 세척방법에 의한 잔류농약의 감소량을 조사한 결과 세제 사용시의 평균제거율은 dichlofluanid는 73.7%, iprodione은 64.3%로 나타났고, tap-water 사용시에는 dichlofluanid 73.5%, iprodione 63.5%로 나타났다. 이러한 결과는 작물의 생산단계에서 구한 합리적인 희귀식을 이용하여 잔류농약의 경시변화를 파악하고, 저장 및 세척과정을 거쳐 최종 소비단계에서의 잔류농약의 수준을 평가할 수 있었다. We studied the residual patterns of two fungicides, dichlofluanid and iprodione, in cherry tomato greenhouse after applying with the recommended and double dose. Also, the degradation patterns during storage periods of up to ten days were compared between at room temperature (20℃) and at cold temperature (4℃). Removal rates of fungicides by washing with tap-water and detergent solution (0.1%, 0.2%) were measured. Half-lives of dichlofluanid and iprodione in greenhouse cherrytomato were 2.2~3.5 and 3.3~5.4 days, respectively. During the storage period, the residues were dissipated more slow. Removal rates were 62.8~80.3% by tap-water, 60.4~83.1% by 0.1% detergent solution, and 65.3~77.6% by 0.2% detergent solution. So, we can predict of terminal residues from cultivation period to marketing, storage and consuming.

자극제 사용 미분쇄 플라이애쉬 모르타르의 강도증진에 관한 실험적 연구

배수환,최광윤,정재동 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.1(구조계)

The purpose of this study is for the active use of the fly ash, which is a by-product of the combustion pulverizes coal thermal power plants, it should be used to compensate for the lack of landfill and for conservation of energy as the supplementary cementitious material, and to prove its possibility as the related products of the cement. First of all, the ordinary fly ash is ground in a special method and its fineness is controlled from 4000cm²/g to 6000 cm²/g, then replaced it with the 20% to 80% of the cement mortar to test of the physical properties. The first experiment is about the slow development of the strength of the fly ash mortar in early ages, and improves its strength with the activator Na2SO4, using a large amount of fly ash. On the other hand, in case of adding activator with steam curing, it rather shows the decrease of strength. This is that it needs to consider the influence by high temperature.

두부회전에 따른 측모두부방사선 계측치의 변화

김광수,황미선,최의환,김광원,윤영주 대한치과교정학회 2000 대한치과교정학회지 Vol.30 No.1

본 연구는 측모두부방사선사진 촬영시 발생될 수 있는 두부회전이 측정된 선, 각계측치들에 어느 정도의 투사오차를 야기시키는지 알아보기 위해 조선대학교 의과대학 해부학교실에 소장중인 건조두개골 중 비교적 상태가 양호하고 특별한 비대칭이 없는 영구치열기의 건조두개골 17개를 표본으로 선택하여 시행하였다. 각각의 건조두개골을 수직축(Z축)을 중심으로 기준위치(0˚)에 대해 1˚ 간격으로 ±15˚ 까지 실험적으로 회전시켜 총 527장의 측모두부방사선사진을 촬영하였다. 이를 근거로 기준위치(0˚)에서의 계측치와 각 회전각에서의 계측치들 사이에 paired t-test를 시행하여 측모두부방사선사진 계측치 간의 차이를 규명하였으며, 이를 통해 투사오차의 관점에서 교정학적으로 유용한 측모두부방사선 계측항목을 구한 결과 다음과 같은 결론을 얻었다. 1.각계측항목이 선계측항목에 비해 투사오차가 작았다. 2.각계측항목은 정중시상면에 위치한 기준점들을 많이 포함할수록 투사오차가 작았다. 3.수평선계측항목의 길이는 필름방향으로 회전됨에 따라 점진적으로 감소되었으나, 초점 방향으로 회전됨에 따라서는 증가되다가 감소되었으며 상대적으로 그 변화양이 작았다. 4.두부회전에 따른 투사오차는 수직선계측항목에 비해 수평선계측항목에서 컸다. 5.수직선계측항목은 회전축으로부터 거리가 증가함에 따라 투사오차가 증가하였다. 이상을 종합해 볼 때 두부회전에 따른 측모두부방사선사진 계측치의 투사오차를 최소로 하기 위해서는 선계측항목보다는 각계측항목을 사용하는 것이 유용할 것으로 사료된다. This study was performed to find out the effect of projection errors on cephalometric linear and angular measurements according to head rotation during taking lateral cephalometric radiographs. Seventeen skulls with permanent dentition and no gross asymmetry were obtained from the Department of Anatomy, Medical School, Chosun University. Total 527 x-ray films were taken with 1˚ interval from the reference position(0˚) to ±15˚ around the vertical axis (Z axis) which is perpendicular to the midpoint of the line connecting the center of two ear rods in submento-vertex direction. Statistical analysis was performed by faired t-test if there were statistically significant differences between the mean of the reference position(0") and that of each rotation angle. The following results were obtained. 1.The projection errors of angular measurements were smaller than those of linear measurements. 2.The projection errors of angular measurements including midline landmarks were smaller than those including bilateral landmarks. 3.The horizontal linear measurements were gradually decreased when the skull was rotated toward the film, but slightly increased and then decreased when the skull was rotated toward the focal spot. However, the changes were smaller in focal direction. 4.The projection errors of horizontal linear measurements were larger than those of vertical linear measurements. 5.The projection errors of vertical linear measurements were increased with increased distance from the rotation axis to vertical measurements. It is concluded that the use of angular measeurements rather than linear measurements is recommended to minimize the projection errors.

상위인지 전략훈련이 독해부진아의 독해력과 자기효능감에 미치는 효과

여광응,박현옥,최환석 한국특수교육문제연구소 2003 특수교육저널 : 이론과 실천 Vol.4 No.4

독해는 특정 교과에 한정되는 교과 활동이기보다는 모든 교과학습의 기초이기 때문에 초등학교 아동의 독해학습부진은 반드시 해결해야 할 중요한 과제이다. 기존에는 독해력 결함의 원인을 주로 상징과 소리 협응에 대한 법칙학습 장애나 시지각 장애로 귀착시켰으나, 최근에는 정보처리 과정상의 결함 내지 읽기에 관한 배경지식의 결함과 글을 읽고 이해하는 데 필요한 상위인지 전략의 선택 및 활용 부족을 원인으로 보는 경향이 유력하다. 이 연구는 상위인지 전략훈련(자기교시 전략훈련과 자기조절 전략훈련)이 초등학교 고학년 독해부진아의 독해력 향상과 유지, 자기효능감에 미치는 효과를 밝히기 위한 것이다. 연구 결과, 상위인지 전략훈련은 독해부진아의 독해력 향상과 유지에 긍정적인 영향을 미쳤으나, 자기효능감의 경우 양 집단 모두 뚜렷한 효과를 보였으나 양집단 간에는 효과의 차이가 나타나지 않았다. Recently, the strategy training for learning disabled children is widely applied so that learners themselves can set up self-planning, self-monitoring and self- evaluation, self-instruction and self-regulation strategy training methods that are based on the explicit instruction have proved their effectiveness. The purpose of this study is to compare the effect of self-regulation and self-instruction training methods for reading-comprehension on poor reader, and to investigate the improvement of the perception of self-efficacy for reading- comprehension of the children. In order to accomplish this purpose were 4th, 5th, and 6th graders of registered two primary schools within Daegu and selected 48 students who are delayed more than 1.5 year in their reading comprehension ability by the Reading Ⅱ(Reading Comprehension Test) of the fundamental learning ability test(by Park, Kyong-sook and others, 1985) and they were divided into two groups by 24 children at random. The children were randomly assigned to three conditions of self-regulation strategy training, self-instruction strategy training. The experimental group subjects were trained by two teachers at each experimenting school for 30 minutes, 5 times a week for 20 times in all by utilizing the self-study hours in the morning and lunch time. The following conclusion were obtained from the results and discussions of this study: First, the self-regulation and self-instruction strategy training is effective. The expected improvement of reading-comprehension ability of the self-regulation strategy training is higher than that of the self-instruction strategy training. Second, the effect of the self-instruction strategy training and the self-regulation strategy training is transferred to the effect maintains. The expected improvement of reading-comprehension ability of the self-regulation strategy training is maintained for a long time. Third, a relationship is revealed between the methods of the self-regulation and self-instruction strategy training is transferred to the improvements of self-efficacy for reading comprehension.

천마의 항 불안 효과

김여환,최형철,손의동,이광윤,김원준,박형배,하정희 대한생물치료정신의학회 1996 생물치료정신의학 Vol.2 No.2

천마(Gastrodia elata Blume)의 근경을 말린 것은 한방에서 오래전부터 여러 형태의 간질발작 치료 목적으로 이용되어지고 있었으나 어떤 활성물질에 의해 또 어떤 작용 기전을 통해 약리작용을 나타내는지를 충분하게 설명하지 못하고 있다. 최근 항경련 작용기전 연구 결과 천마추출물의 GABA성 신경전달계에 대한 조절작용과 관련이 있을 것이라는 연구 결과가 보고되었으며, 소량으로도 뇌억제 및 진정작용이 있다는 문헌을 참고하여 볼 때 천마의 항불안 작용 가능성이 시사되었다. 이에 본 연구를 통하여 천마를 사용하여 실험동물에서 항불안 작용을 검색하고 그 작용기전의 일부를 밝히고자 항불안작용 기전에 중요한 benzodiazepine 수용체와의 상호작용을 관찰하였다. 실험 결과, 천마 추출물의 경구 장기투여는 생쥐의 elevated plus maze 검사에서 개방 통로에로의 진입 및 개방통로에서의 체류시간을 증가시킴으로써 항불안 효과를 나타내었다. 천마의 에탄올 추출물은 benzodiazepine수용체 길항제인 [³H] Ro15-1788결합을 억제하였으며, 천마 추출물은 [³H] Ro15-1788의 수용체 결합에 대한 최대 결합력(Bmax)은 변화시키지 않고, 친화력(affinity)을 감소시킴으로써 상경적인 결합 양상을 나타내었다. 또 천마의 에탄올 추출물은 benzodiazepine 수용체의 효현제인 flunitrazepam의 수용체 결합반응을 억제시켰는데, 이러한 억제는 GABA 존재하에서 항진되는 것을 관찰하였다. 이상의 결과로 미루어보아 천마의 에탄올추출물 내에는 항불안작용을 나타내는 성분이 함유되어 있을 가능성을 예상케한다. Gastrodia elata Blume is a medicinal plant which has been used as anticonvulsant in oriental medicine, and has been used as sedatives. A survey of the relevant literature has indicated that the putative anxiolytic activity of G.elata Bl. has not been scientifically investigated. Therefore, the present study was designed to assess anxiolytic property and interaction with benzodiazepine receptor of G. elata BI. The putative anxiolytic activity of ethanol extract of G. elata BI. was performed in mice using an elevated plus maze paradigm. Chronic oral administration of G. elata BI. showed anxiolytic action in mice. It was suggested that regulation of GABAergic neurotarnsmission may be important in the action of G. elata BI. The interaction of G. elata BI. with benzodiazepine receptor was investigated using rat cortices. Ethanol extract of G. elata inhibited the binding of [³H] Ro15-1788, a selective benzodiazepine receptor antagonist to benzodiazepine receptor. The inhibition of [³H] Ro15-1788 binding by G. elata BI. appeared to be competitive. Further, GABA significantly enhanced the potency of this extract in inhibiting [³H] flunitrazepam, a selective benzodiazepine receptor agonist, binding to benzodiazepine receptor. From these findings, it can be concluded that substance or substances with neurochemical properties characteristic of a benzodiazepine receptor agonist may contribute to the anxiolytic property of G. elata BI.

市販 液狀飮料製品의 치아우식유발능

李光熙,崔又煥 圓光大學校 醫科學硏究所 1987 圓光醫科學 Vol.3 No.1

The authors measured the Cariogenic Potential of thirty two liquid beverages in the market in terms of pH, buffering capacity, acid-producing capacity, and carbohydrate content which was analyzed by High Performance Liquid Chromatography. Buffering capacity was measured by the quantity of 0.1N lactic acid necessary to drop the pH of 2 ml sample & 2 ml saliva mixture as much as 1.00. Acid-producing capacity was measured by the quantity of 0.1 N NaOH necessary to elevate the pH of 10 ml sample & 1 ml saliva mixture to the original pH after twelve hours of incubation at 37℃. Relative Cariogenic Potential Index was calculated by giving one to five points to each four factors, so that the lowest would be 4 and the highest would be 20. 1. pH : 82.4% were under pH 5.00 at which enamel begins to dissolve. Carbon ated soft drinks were pH 2.88, the lowest, fruit juices were pH 3.15, ginseng drinks were pH 3.57, lactic ferments beverages were pH 3.87, and soybean milk products were pH 6.58, the highest. 2. buffering capacity: 91.2% were lower than that of human saliva. Carbo nated soft drinks were 80μl, the lowest, ginseng drinks were 85μl, soybean milk products were 107 μl, fruit juices were 376μl, and lactic ferments bevera ges were 807μl, the highest. 3. acid-producing capacity : soybean milk products were 10,762 μl, the high est, lactic ferments beverages were 2,960 μl, fruit juices were 2,931 μl, ginseng drinks were 996 μl, and carbonated soft drinks were 392 μl, the lowest. 4. carbohydrate content analyzed by HLPC : ◁표 삽입▷(원문을 참조하세요) 5. Relative Cariogenic Potential Index : carbonated soft drinks and ginseng drinks were equally 13, lactic ferments beverages and fruit juices were equally 12, and soybean milk products were 10. 6. The colleges, the industry, and the consumers should cooperate to lower the cariogenic potential of liquid beverages in the market.