수면량과 집중력의 상관관계

김병우,류지근,박우진,박계원,김미정,임지은,백대현,최재덕,최윤호,이가현,이관,김덕수 東國大學校醫學硏究所 2002 東國醫學 Vol.9 No.1

수면, 기억 그리고 학습의 연관성은 실제 매우 복잡하다. 많은 연구에도 불구하고 명확한 연구결과는 아직 없다. 우리는 이 연구에서 평소와는 달리 시험 전날 수면 변화 양상이 집중력에 어느 정도 영향력을 미치는지 알아보고자 하였고, 이를 이용해 효율적인 수면 관리를 할 수 있는 기초자료로 삼고자 하였다. 동국대 의대 본과 1학년생 중 지원자 30명과 본과 2학년생 10명을 대상으로 평상시 상태와 시험 직후 수면이 부족한 상태에서 각각 K-PES TEST를 실시하여 총 8항목에 걸쳐 암기력, 판단력, 단순반응의 변화정도를 검사하였다. 또 설문조사를 병행하여 결과에 영향을 미칠 수 있는 다른 인자들도 파악하였다. 수면량에 대한 부호 숫자 짝짓기(순간 판단력)을 검사한 결과, 인간의 최대 생리학적 기능은 꼭 수면부족에 의해 좌우되는 것은 아니다. 그러나, 수면감소는 피로를 증가시키고, 동기부여를 감소시키나 단, 새로운 사실을 학습하는 데에는 큰 영향을 끼치지 않는다. 즉, 수면부족으로 장시간 깨어있는 것은 정확성과 반응성을 떨어뜨린다. 흡연에 대한 부호 숫자 짝짓기(순간 판단력)을 검사한 결과, 니코틴의 수면에 대한 상호관계는 알려지지 않았고, 인간의 감정이나 의식, 인식에 영향을 주는 것으로 알고있지만, 장기적은 측면에서 흡연이나 알코올은 인식능력과 무관한 것 같다. 카페인에 대한 숫자 외우기(암기력)검사 결과, 카페인은 spacial selective attention에는 특별한 영향을 주지 않지만 지각과정이나 주의 집중에 큰 효과를 주며, 인간의 의식 수행에 긍정적인 효과를 준다. 즉 카페인은 활력, 혼란, 피로상태를 변화시키고 visual analog scales에서 휴식상태에 가까운 양상을 나타낸다. 또 48시간 동안 수면을 취하지 않은 사람에게 카페인은 집중력과 장시간의 좋은 기분을 유지하게 하였다. 그러나 규칙적, 비규칙적으로 먹는 사람간에는 인지수행력의 차이를 보이지 않으며 상용자에서는 상당한 내성이 보인다. 수면패턴에 대한 숫자 더하기(순간 판단력)검사 결과, 집중력은 수면패턴에 의해서도 영향을 받고, 수면패턴이 바뀌게 되면 순간판단력을 저하시킨다. This study was performed to evaluate relationship of sleep and attention, and to control sleep effectively. We conducted a K-PES test of 40 medical students. K-PES contains eight elements, for example, simple response, selective response, color pairing, OddEven discrimination, number addition, number-symbol matching, memory, right-tapping, left tapping. Through these, we tested changes of memory, judgement, simple response. And we conducted a questionnaire survey to exclude bias. Results are as follows. As a results of number-symbol matching test, we know that sleeplessness is not complete responsible for physiologic function for humans. But, decreased sleep increases fatigue and decreases motivation, but no influence on learning new materials. So, long term sleeplessness decreases precision and responsibility. As a results of number-symbol matching test on smoking, a relationship of nicotine and sleep is not certain. A point of view in long term period, smoking and drinking is not related cognition, even if we know that those influence mood, consciousness and cognition. As a results of memory work test on caffeine, caffeine does not influence spacial selective attention, but mainly does perception, attention and consiousness process. Namely caffeine changes energetic activities, chaos, fatigue states and shows resting state in visual analog scales In sleeplessness for 48 hours, caffeine produced attention and good mood for a long time. But, in case of cognitive process no significance shows in regular or irregular diet. Regular diet shows high resistance. As a results of number addition test on sleep patterns, seep patterns influence attention, changes of sleep patterns decrease a moment judgement.

운동이 정신지체 성인여성의 골밀도에 미치는 영향

장명재,최지우,최원현,최현희 경희대학교 체육과학연구소 2000 體育學論文集 Vol.28 No.-

The purpose of this study was to investigate the effect of exercise to mentally retarded women's bone mineral density. Subjects were divided into three groups: Group A(age:27.9yr, n=8)-This group was mentally retarded exercise women, who had been doing regularly exercise for over three years. Group B(age:28.8yr, n=8)-This group was mentally retarded non exercise women, who hadn't been doing it as usual. Group C(age:29.0yr, n=8) This group was normal women, who hadn't been doing it as usual. This study analysed and compared the bone mineral density between these three groups. The results were summarized as follow. 1.The BMI of group A(Mentally retarded exercise group) was 22.8±3.28 kg/m2, group B(mentally retarded non exercise group) was 22.6±5.6 kg/m2, and Group C(normal group)was 22.0±2.2 kg/m2. There were no significant differences in BMI between three groups. 2.There were significant difference in grip strength and back strength between three groups(p〈.001). The grip strength of group A was 16.9±6.5 kg, group B was 12.2±4.0 kg, and group C was 31.8±2.1 kg. The back strength of group A was 36.9±16.1 kg, group B was 34.2±8.4 kg, and group C was 96.9±32.7. 3.These were significant difference bone mineral density of lumbar between these groups. Group A was 0.1±0.08 g/cm2, Group B was 0.888±0.10 g/cm2, and group C was 1.05±0.04 g/cm2(p〈.01). 4.These were very significant difference bone mineral density of femur between these groups. Group A was 0.91±0.09g/cm2, group B was 0.74±0.08 g/cm2, and group C was 0.97±0.14 g/cm2(p〈.0001). 5.These were very significant difference bone mineral density of Forearm between these groups. Group A was 0.6±0.02 g/cm2, group B was 0.56±0.03 g/cm2, and group C was 0.63±0.02 g/cm2(p〈.0001). 6.Group A were correlations between bone mineral density of femur(neck) and BMI, weight(p〈.05). 7.Group B were correlations between bone mineral density of forearm(MID, total) and age(p〈.05). 8.Group C were correlations between bone mineral density of lumbar(L1) and age, BMI, back strength(L4).

한의진단명과 진단요건의 표준화 연구 II (표준화 실례) : 2차년도 연구결과 중간 보고

양기상,최선미,최승훈,안규석,박경모,박종현,김성우,신승호,정우열,전병훈,고현,김정범,신상우,김성훈,김동희,권영규,엄현섭,장혜옥 한국한의학연구원 1996 한국한의학연구원논문집 Vol.2 No.1

The diagnostic requirements were suggested and explained regarding the systems of differentiation of symptoms and signs in the second year study of standardization and unification of the terms and conditions used for diagnosis in oriental medicine. The systems were as follows; - differential diagnosis according to condition of body fluid, differentiation of syndromes according to the state of qi and blood, differential diagnosis according to relative excessiveness or deficiency of yin and yang(氣血陰陽津液辨證) - differentiation of diseases according to pathological changes of the viscera and their interrelation - analyzing and differentiating of febrile diseases in accordance with the theory of the six channels(傷寒辨證) The individual diagnosis pattern was arranged by the diagnostic requirements in the following order : another name(異名), notion of diagnosis pattern, index of differentiation of symptoms and signs(辨證指標), the main point of diagnosis, analysis of diagnosis pattern(證候分析), discrimination of diagnosis pattern(證候鑑別), a way of curing a diseases(治法), prescription(處方), herb in common use(常用藥物), diseases appearing the diagnosis pattern(常見疾病), documents(文獻調査). This study was carried out on the basis of the Chinese documents and references.

전국 10개 종합병원 중환자실 환자의 직장내 Vancomycin-resistant Enterococci(VRE) 보균율, 보균의 위험요인 및 유전적 다양성 조사

정희진,송준영,엄중식,김우주,최선주,최정현,이혁,정문현,이광미,신동현,손보라,최종성,우흥정,권정아,이경원,최강원,박승철 대한감염학회 2002 감염 Vol.34 No.5

書畵用筆時 手腕의 기하학적 구조 분석

崔現宇 동방대학원대학교 2008 東方論集 Vol.2 No.-

기하학은 수학의 한 분야로서, 점 ․ 선 ․ 면 ․ 입체 등이 만드는 ‘도형을 연구하는 학문’이다. 고대그리스에서부터 발생하여 오랜 전통을 가지고 있는 서양 기하학은 독특한 두 가지 특성을 가지고 있다. 첫째는 철저한 논증에 의하여 도형의 의미를 추론한다는 점이며, 둘째는 ‘컴퍼스와 눈금 없는 자로만으로 작도해야 한다’는 제한조건을 두었다는 점이다. 이러한 기하학적 원리를 차용하여 비교 설명하는 수단으로 사용한다면, 書畵의 用筆法을 쉽게 이해할 수 있도록 도와 줄 것이다. 이러한 관점에서 살펴보면 예술 창작시 서양에서 그리는 대상을 기하학적 법칙으로 바라보면서 遠近法이라는 畵法이 생겨났듯이, 동양에서 창작하는 순간의 예술가의 모습에서 기하학적 질서를 찾아낸 것이 서화의 用筆法이다. 용필법은 동양예술분야에서 표현 대상의 재현으로 形似뿐만이 아니라 氣韻을 담아내는 데에, 특정한 예술적 동작이 연관성을 갖고 있다는 것을 깨달았기 때문에 생겨난 것으로 추정된다. 서화용필시 팔의 움직임-懸腕法-의 변화에서 ‘변함없이 유지되는 도형’이 포착된다. 예를 들면 붓을 잡고 있는 손과 팔에서 수평수직선, 원, 정삼각형, 나선형 등의 도형이 관찰되어 이렇게 본고에서 ‘수완의 기하학적 구조’ 측면에서 ‘서화의 용필법’과 비교하여 분석하게 되었다. 또한 이 서화용필의 방법을 心手相應에 근거하여 일상생활에도 적용해보면, 현대의 필기도구를 잡을 때 손 모양이 螺旋形인 ‘소라껍질 모양’으로 되는 자연스러운 執筆法은 편안한 마음을 유도하는데 도움이 될 것이다.

편의점(CVS)의 포장디자인 전략에 관한 연구

최영규,김용우,김현철 서울保健大學 1997 論文集 Vol.17 No.1

Recently according to the individualization and differentiation in consumers` lifestyles, there are many changes in the distribution types of products. Especially owing to the increase of women in the work force, the single population and the night active population, in the past few years the rapidly growing convenience stores are becoming fixture in our society as a popularized retailer. Accordingly, going beyond the primary role of preserving contents and protecting quality, package design at a convenience store, on the premise of it being self-service, serve as a means of sales promotion strategy, to induce the purchase by communicating information and favorable image to the consumer. Developing package design with consideration to these special features of a convenience store must be improved by satisfying the following points: · to produce positive corporate image by developing private brands for a differentiation strategy. · to induce impulse buying owing to direct advertising by developing package designs which considers P.D.P. functions. · to stimulate the consumers` desire to purchase and to revitalize the store atmosphere by package design which maximizes effects of the displays. · to produce brand logotypes that has outstanding communicative properties and that can be long remembered. · to develop a color strategy which suggests a product's features, can touch the consumer's sensibility, and can minimize stress to the eyes. · to produce a systematic layout which leads to visual order of detail design elements.

Hirschsprung 씨 질환에서 항문직장계측검사의 진단적 의의

최순옥,강중신,백태원,박우현 啓明大學校 醫科大學 1987 계명의대학술지 Vol.6 No.2

It is well known that stimulation of rectum by balloon distention results in the reflex relaxation of the internal anal sphincter in the normally innervated bowel. and this rectosphincteric reflex is absent in Hirschsprung's disease. It's the first report in Korea to evaluate diagnostic reliability of anorectal pressure study in Hirschsprung's disease using anorectal manometry, Model 003 developed by professor Holschneider. This investigation was performed on 21 consecutive children who complained of acute intestinal obstruction especially in infants and chronic constipation during the period February 1986 to September 1987. The ages of the children ranged from 8 days to 15 years, and 8 patients including the 4 neonates were examined within 1 year old. The 7 patients were proved to have Hirschsprung's disease who revealed no rectosphincteric reflex on anorectal pressure study, and Hirschsprung's disease was ruled out in 14 patients who reveales rectosphincteric reflex. In 2 out of 14 patients who showed no rectosphincteric reflex, Hirschsprung's disease was ruled out by rectal suction biopsy and clinical course. With the above results, this study shows an over-all diagnostic accuracy 90% along with sensitivity 100% and specificity 86%. In conclusion, anorectal pressure study is a reliable, diagnostic procedure for Hirschsprung's disease, and it has the advantage of simple , non-invasive and safe procedure without general anesthesia and is of particular value as a screening test in inpatients as well as outpatients.

절충연산자를 이용한 다목적 비선형 계획법의 대화형 퍼지 의사결정

최규탁,남현우,박재민 慶南專門大學 1997 論文集 Vol.25 No.1

DCT를 이용한 영상의 윤곽선 추출을 위한 양자화 테이블 비교분석

최현주,성병우,최흥국,서재현 인제대학교기초과학연구소 1998 자연과학 Vol.2 No.-

본 논문에서는 DCT(discrete consine transform)를 이용하여 영상 데이터를 공간 영역에서 주파수 영역으로 변환하여 주파수 영역별로 분해한 뒤, 윤곽선 추출과 압축을 동시에 하기 위한 여러 양자화 테이블을 적용하고, IDCT(Inverse DCT)를 이용하여 복원한 결과를 비교 분석함으로써, 보다 정확한 윤곽선을 가진 영상을 추출할 수 있는 양자화 테이블을 구했다. 이 양자화 테이블을 DCT 처리된 영상에 적용했을 때 윤곽선과 압축 효과를 가진 영상을 얻을 수 있었다. In this paper, we transform image data from spatial domain to frequency domain using DCT, decompose it into each frequency band. We apply various quantization table for edge detection and compression simultaneously. We researched a quantization table for extracting image with exact edge, as compare and analyze restored images using IDCT. When we applied this quantization table to the DCT transformed image, acquired the image with edge and compression effect.

한국산 배의 Polyphenol 화합물군이 쥐의 면역기능에 미치는 영향

최희진,한호석,박정혜,배종호,우희섭,안봉전,배만종,김현구,최청 한국식생활문화학회 2003 韓國食生活文化學會誌 Vol.18 No.4

This study was conducted to investigate immunofunctional activity of the polyphenol fractions isolated from Korean pear. In the experimental of Rosette forming cell, the results showed that all the polyphenol fractions enhance the cell count compared with the control group. Especially polyphenol fraction II and III showed highly significant effect on Rosette forming cell, and allergy inhibition. After antigen challenge, histamine content of blood of the polyphenol groups was lowered to near the normal group.