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검색결과 772건 처리시간 0.035초

동일한 영상자극을 이용한 장조음악과 단조음악에 의해 유발된 뇌 활성화의 차이 : fMRI 연구 (An fMRI Study on the Differences in the Brain Regions Activated by an Identical Audio-Visual Clip Using Major and Minor Key Arrangements)

  • 이창규;음영지;김연규;;손진훈
    • 한국감성과학회:학술대회논문집
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    • 한국감성과학회 2009년도 춘계학술대회
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    • pp.109-112
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    • 2009
  • The purpose of this study was to examine the differences in the brain activation evoked by music arranged in major and minor key used with an identical motion film during the fMRI testing. A part of the audio-visual combinations composed by Iwamiya and Sano were used for the study stimuli. This audio- visual clip was originally developed by combining a small motion segment of the animation "The Snowman" and music arranged in both major and minor key from the original jazz music "Avalon" rewritten in a classical style. Twenty-seven Japanese male graduate and undergraduate students participated in the study. Brain regions more activated by the major key than the minor key when presented with the identical motion film were the left cerebellum, the right fusiform gyrus, the right superior occipital, the left superior orbito frontal, the right pallidum, the left precuneus, and the bilateral thalamus. On the other hand, brain regions more activated by the minor key than the major key when presented with the identical motion film were the right medial frontal, the left inferior orbito frontal, the bilateral superior parietal, the left postcentral, and the right precuneus. The study showed a difference in brain regions activated between the two different stimulus (i.e., major key and minor key) controlling for the visual aspect of the experiment. These findings imply that our brain systematically generates differently in the way it processes music written in major and minor key(Supported by the User Science Institute of Kyushu University, Japan and the Korea Science and Engineering Foundation).

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룸바 쿠카라차 동작의 운동학적 분석 (Kinematics Analysis of Rumba Cucarachas Motion)

  • 최인애
    • 한국운동역학회지
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    • 제14권1호
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    • pp.145-160
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    • 2004
  • The purposes of this study to provide quantitative data in necessary to advance techniques kinematic analysis of Cucarachas which is an action of Rumba. Then, this study is performed on 5 female players who have won within the third prize at a national athletic meeting. When whole foot reached to floor, Displacement of right-left hip joint (until $E1{\sim}E3$ average moved 15.15cm)is found at right-left direction since the hip joint is turned to right back. On the other side, large displacement is shown because Rumba Cucaracha Movement is expressed by maximum shift of hip joint to right and left direction. Displacement of right hip joint(E3$57.40{\pm}7.46$) is found in front and in rear direction since hip joint is moved in rear and in front to turn the hip joint. It may be stated that this is ideal displacement expressed by movement of whole body with artistic poise and presentation because role of hip joint is very important in technical and artistic side. Angle of right shoulder joint E2($105.44{\pm}9.64$) is got wider. It may be stated that player shifts up and abduct elbow joint to right since center of gravity of player is exceedingly shifted to right in this motion of Cucarachas. On the other hand, since this motion is abducted right elbow and shrunk external abdominal oblique to him center of body to left front of hip joint, the angle becomes narrow. It is shown that angle of knee in right knee joint E4($75.44{\pm}2.61$) is large since right leg and hip joint is turned by foot using reaction of ground and so center of body is shifted to left. Large angle of ankle E4($134.40{\pm}10.50$) in Cucaracha Movement is shown by the action of twist force using narrow part of foot and compression force against ground with adduction speed of arm. The various kinematic analyses associated with motions of dance sport have not been sufficiently peformed so far, and thus a number of research projects for dance sport should be proposed and performed to be continuous.

라텍스 장갑의 세척 방법에 따른 세균 감소율 측정 (Bacteria reduction ratio by cleansing methods of latex gloves)

  • 양송이;오정민;송다혜;송보람;강명진;이명선;손가연;오상환
    • 한국치위생학회지
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    • 제14권4호
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    • pp.593-599
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    • 2014
  • Objectives : Latex gloves hygiene is the most effective method to prevent infection of microorganisms and to reduce the incidence of cross infections. The aim of this study was to compare the bacteria reduction ratio of cleansing with water, liquid soap and alcohol gauze. Methods : The left side glove was the control group and the right side was the experimental group. The experimental group washed hand with water, soap, and alcohol gauze. The hand plate was inoculated by the hand and inoculated for 24 hours in $35^{\circ}C$. Results : Washing with water showed that CFU of control group was 1116.9 and that of experimental group was 302.8. Hand washing by water reduced 74.3% of bacteria. Liquid soap revealed that CFU of control group was 619.9 and that of experimental group was 8.3. Hand washing by liquid soap reduced 97.5% of bacteria. Alcohol gauze included 875.2 CFU in control group and 5.8 CFU in experimental group. Washing by alcohol gauze reduced 99.5% of bacteria. Conclusions : Based on the results, the most effective latex gloves cleansing method was recommended as the standardized hand washing with the liquid hand soap and alcohol gauze. The results can be used to improve training strategies for enhancing glove hygiene practice in dental clinic.

들기/내리기 빈도와 회복시간 변화에 따른 몸통 근육의 피로도 분석 (Analysis of Trunk Muscle Fatigue as the Frequency of Lifting/Lowering and Recovery Time Change)

  • 이태용;김정룡;신현주
    • 대한인간공학회지
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    • 제25권2호
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    • pp.197-204
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    • 2006
  • The purpose of this study was to investigate the relationship between the cumulative fatigue of trunk muscles and the period of recovery time during repetitive lifting and lowering task with two different frequencies(4 times/min and 6 times/ min). Eight healthy males with no prior history of LBD(low back disorders) volunteered for this study. Subjects had 2, 3, 4, and 5 minutes recovery time respectively while they were preforming the lifting and lowering task at 15% level of MVC. EMG signals from six trunk muscles were collected and the fatigue level was analyzed quantitatively. In results, the fatigue levels of LES(left elector spinae), RLD(right lattissimus dorsi), LLD(left lattissimus dorsi), RRA(right rectus abdominis) and LRA(left rectus abdominis) were recovered when 3 minutes recovery time was given at 4 times/min frequency. However, the fatgue level of RES(right elector spinae) was recovered when 4 minutes recovery was given. On the other hand, when 6 times/min frequency was used, the RLD, LLD, RRA and LRA were recovered at 5 minutes of recovery time. But for RES and LES, it took longer than 5 minutes to be recovered. This results can be applied to design the adequate length of recovery time to control the cumulative fatigue of trunk muscles in industry with repetitive lifting and lowering task.

노르딕 워킹 운동 프로그램이 중년 농촌주민의 신체지표와 주관적 행복감에 미치는 영향 (The Effect of Nordic Walking Exercise on Physical Indicators and Subjective Happiness of the Middle-aged in Rural Area)

  • 이찬미;박영숙
    • 지역사회간호학회지
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    • 제31권1호
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    • pp.65-75
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    • 2020
  • Purpose: The purpose of this study was to identify the effect of regular Nordic walking exercise on the physical indicators and subjective happiness of middle-aged rural residents. Methods: A pretest and posttest design with a non-equivalent control group was conducted. The participants of experimental and control group were each 21 subjects from 40 to 64 years old. The Nordic walking exercise program consisted of 24 sessions which were focused on group exercise, and was conducted three times a week for eight weeks. Results: The experimental group showed significant decreases in body mass index (p=.042), body fat (p<.001), and abdominal fat (p=.026). The experimental group showed significant increases in muscle mass of right lower limb (p=.009) and left lower limb (p=.016) but was not statistically significant in right, left upper limbs and body. On the other hand, the control group showed significant decreases in muscle mass of right upper limb (p=.034), left upper limb (p=.038), and body (p=.034). There were no significant differences in systolic blood pressure, diastolic blood pressure, and subjective happiness between the experimental and the control group. Conclusion: The Nordic walking exercise should be actively encouraged to improve health of the middle-aged in rural area.

콘크리트댐 하부에서의 침투특성 (Seepage Characteristics under Concrete Dam)

  • 이승현
    • 한국산학기술학회논문지
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    • 제13권6호
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    • pp.2773-2778
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    • 2012
  • 콘크리트댐 하부지반에서의 침투시 유선망 특성을 파악하고자 다양한 흐름조건에 대하여 유한차분식을 정식화하고 해석에 적용하였다. 댐하부에 차수벽이 없는 경우 불균질 지반에서의 등수두선에 있어서는 투수계수가 상대적으로 큰 영역에서 등수두선의 경사가 크게 된다. 댐하부지반의 좌측에서 우측으로의 침투에 있어 차수벽을 댐의 중앙 하부와 좌측 끝단 하부에 설치하는 경우에 대하여 침투해석을 실시하였다. 해석결과를 통해 볼 때 하류측 차수벽면을 따르는 흐름에 있어 차수벽을 좌측에 설치한 경우의 유속이 차수벽을 중앙에 설치한 경우의 유속에 비하여 감소함을 알 수 있고 차수벽 우측지반내의 흐름에 있어서는 차수벽을 좌측에 설치한 경우의 유선이 상대적으로 수평선에 가깝다.

염전보사의 정량적 기준에 대한 고찰 (Review on the Quantitative Standards for Twirling Supplementation and Draining)

  • 박진아;이상룡
    • Korean Journal of Acupuncture
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    • 제33권4호
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    • pp.149-156
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    • 2016
  • Objectives and Methods : The aim of this study was to investigate twirling and supplementation and draining by analyzing ancient acupuncture literature and modern research papers, and to discuss the quantitative standards for the procedure. Results : Twirling supplementation and draining techniques were first described in Huang do neijing, after which they were recorded in various other ancient acupuncture texts. Not only were these techniques used in the active treatment of patient historically, but they also form the foundations of modern-day acupuncture treatment. Twirling supplementation and draining techniques described in ancient literatures can be divided into Yin and Yang. Examples of Yang characteristics include Up, Male, Morning, Hands, the governor vessel, Outside, and Left. The left rotation technique is a reinforcing method performed by moving the thumb forward while rotating the needle. Examples of Yin characteristics include Down, Female, Afternoon, Foot, the conception vessel(CV), Inside, and Right. The right rotation technique is a reducing method performed by moving the thumb backward while rotating the needle. Twirling supplementation and draining has been divided for four ways by classical literature and research that worked before. the direction of acupuncture, the stimulus-quantity of acupuncture, the performance of doctor(the uses of both hands, left and right hand) and the feeling of patient. Conclusions : Therefore, continuous research is required to implement Twirling supplementation and draining in a consistent manner. In addition, more active clinical trials using the techniques are necessary as well.

Chronic Central Post-Stroke Pain Treated with Scalp Acupuncture and Traditional Korean Medicine: A Case Report

  • Park, Jang Mi;Lee, Jae Sung;Jeong, Jae Eun;Lee, You Jung;Lee, Cham Kyul;Roh, Jeong Du;Jo, Na Young;Lee, Eun Yong
    • Journal of Acupuncture Research
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    • 제36권4호
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    • pp.277-281
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    • 2019
  • A patient with central post-stroke pain was treated for 4 weeks with scalp acupuncture and traditional Korean medicine (following a cerebral infarction in 2013). The patient presented at Chungju hospital in January 2019 with left side weakness and tingling, numbness in the left hemisphere, chronic pain and dysarthria. Initially, herbal medicine, acupuncture, pharmacupunture, indirect moxibustion, and physiotherapy were administered together with Western medicine, with no improvement in the patient's condition. On Day 5, scalp electroacupuncture (MS1, MS5, MS10, MS11) was introduced. The numbness feeling in the patient's head resolved, and the pain in his upper body decreased. Grip force difference between the left and right hand improved from 3 kg to 0-0.5 kg. Sleep disturbance was resolved after 4 weeks treatment, and his average numeric rating scale score for pain improved from an admission score of 10, to a discharge score of 5. The patient could walk unaided after treatment.

기저핵 뇌경색 환자의 편마비 한방치료 1례 (The Effect of Korean Medicine Treatment on Left Basal Ganglia Infarction with Hemiplegia Symptoms: Case Report)

  • 김홍경;김재익;정소연;김정호;김영일
    • 혜화의학회지
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    • 제27권2호
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    • pp.21-29
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    • 2018
  • Objectives : The purpose of this study was to report the effect of Korean medical treatment on left basal ganglia infarction. Methods : We performed acupuncture and administered herbal medicine to one patient to alleviate symptoms of hemiplegia such as motor disorder, facial palsy, and dysarthria. Manual Muscle Test(MMT), Hand Grip Test(HGT), Gait Level(GL), and Dysarthria grade were used to evaluate status of the patient. Results & Conclusions : The results of this research showed that overall symptoms of hemiplegia in the patient were improved. According to the results, the Korean medical treatment is considered to be effective on patients of left basal ganglia infarction to treat symptoms of hemiplegia. Further studies with larger sample sizes are needed to examine this issue.

관찰 자극의 친숙도에 따른 뇌졸중 환자의 뮤리듬 변화 (The Change of Mu Rhythm according to Familiarity of Observation Stimulus in Stroke Patients)

  • 윤태원;이문규
    • PNF and Movement
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    • 제9권4호
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    • pp.33-40
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    • 2011
  • Purpose : The aims of this study was to identify changes mu rhythm according to familiarity with a stimulus in people with stroke. Methods : Seventeen right-handed participants were asked to observe 2 different stimulus; a non-familiarity stimulus condition (NFSC), and a familiarity stimulus condition (FSC). Electroencephalogram (EEG) signals from electrodes on the participant's scalp were recorded during action observation. The activation of the mirror neuron system was compaired between FSC and NFSC by a paired t-test. An independent t-test was used to compare the difference between right and left hemispheres for the activation of the mirror neuron system during action observation of performing a task with the right hand. Results : The result of paired t-test showed no significantly difference between NFSC and FSC in the activation of the mirror neuron system. The Result of independent t-test also showed no significantly difference in the activation of mirror neuron system between the right and left hemispheres. Conclusion : The familiarity with a stimulus had no signigicant effect on the activation of the mirror neuron system according to the familiarity and in either the right or left hemispheres in people with chronic stroke.