• Title/Summary/Keyword: 우세

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Ultrasonographic Findings of the Shoulder in Asymptomatic High School Overhead Athletes (무증상 고교 상지 거상 운동 선수의 견관절 초음파 소견)

  • Cho, Su Hyun;Cho, Hyung Lae;Lee, Jung Su;Kim, Jung Woo
    • The Journal of Korean Orthopaedic Ultrasound Society
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    • v.5 no.2
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    • pp.81-88
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    • 2012
  • Purpose: To evaluate the ultrasonographic (US) findings in both shoulders of asymptomatic high school overhead athletes and compare with healthy control. Materials and Methods: 33 individuals (age: $17.5{\pm}1.4$ years) participated in this study. We recruited two groups of high school male athletes, 13 baseball and 10 volleyball players without shoulder pain for recent 6 months as well as one control group of 10 untrained healthy high school students who were age-matched. Ultrasound measurements of thickness of biceps and supraspinatus tendon and acromio-humral distance (AHD) at 0o abduction were taken in dominant and nondominant shoulders. Results: On US examination, subacromial bursa effusion was observed in 5 of the dominant shoulders and in 1 of the nondominant shoulder of 23 overhead athletes and in none of the asymptomatic controls. The thickness of the biceps and supraspinatus tendons and AHD in both shoulders were significantly greater in the athletes than in the controls (P<0.05). We also found that the thickness of the biceps and supraspinatus tendon and AHD of the dominant shoulder were significantly greater than the non-dominant shoulder in overhead athletes (P<0.05), but there were no differences between baseball and volleyball players. Conclusion: Subacromial effusion could be found even in the asymptomatic stage overhead athlete and the thickness of the biceps and supraspinatus tendons and AHD were significantly greater in the overhead athletes than in the healthy controls. Our data is useful reference guide for the ultrasonographic diagnosis of shoulder pathologies occurring in overhead athletes.

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Functional MRI Study on Perceiving Orthographic Structure and Simplified Semantic Pictures (의미론적인 단순화된 그림 및 표의문자를 인지하는 과정에 대한 fMRI 연구)

  • Kim Kyung Hwan;Lee Sung Ki;Song Myung Sung;Kwon Min Jung;Chung Jun Young;Park Hyun Wook;Yoon Hyo Woon
    • Investigative Magnetic Resonance Imaging
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    • v.7 no.2
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    • pp.93-99
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    • 2003
  • The different perceiving patterns of each picture, alphabetic words and Chinese characters, were widely investigated psychophysically. The more precise localisation can be done in terms of brain activity us-ing functional image technique such as PET and fMRI recently, Until now, there was no fMRI study to make direct comparison between perception of single Chinese character and simplified pictures (pictograph). We have made direct comparison of these two components using modern magnetic resonance techniques. We cannot confirm the right hemispheric dominance for perception of single Chinese character and pictographs. These two kinds of perceiving pattern can be underlying different mechanism.

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The Comparison of Kinematic Data of the Body Orientation in Sitting Position to Adapt Dynamically Changing Angle of the Base of Support in Stroke Patients and Healthy Adults (뇌졸중 환자와 정상 성인의 앉은 자세에서 지지면의 동적 각도 변화에 적응하는 신체 정위의 운동형상학적 비교)

  • Song, In-Su;Choi, Jong-Duk
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.13 no.8
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    • pp.3513-3520
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    • 2012
  • This study aimed to investigate the difference of the body orientation ability in sitting position to adapt to dynamically changing angle of the base of support in stroke patients and Healthy adults. The angle between vertical and head and trunk in 12 stroke patients (6 male and 6 female) and 12 healthy adults (6 male and 6 female) were measured by video motion analysis system. The head and trunk angle between stroke patients and healthy adults in sitting position were significantly different when increase the angle of dominant side(p<.05). The head and trunk angle between stroke patients and healthy adults in sitting position were significantly different when increase the angle of non-dominant side(p<.05). The head and trunk angle between stroke patients and healthy adults in sitting position were significantly different when decrease the angle of non-dominant side(p<.05). The head angle between stroke patients and healthy adults in sitting position was significantly different(p<.05), but the trunk angle was not significantly different when decrease the angle of dominant side(p>.05), Stroke patients compared to healthy adults had more deficits in their body orientation ability in sitting position to adapt to dynamically changing angle of the base of support. This finding may help to understand postural control deficits more clearly in stroke patients in sitting position.

Developing Dominant Tree Height Growth Curve and Site Index Curves for Pinus densiflora and Chamaecyparis obtusa Grown in Jeolla-do (전라도 지역 소나무와 편백에 대한 수고생장모델 및 지위지수곡선 개발)

  • Park, Hee-Jung;Lee, Sang-Hyun
    • Journal of Korean Society of Forest Science
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    • v.108 no.3
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    • pp.364-371
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    • 2019
  • This study was conducted to provide the basic information for a reasonable forest management plan and sustainable forest management by developing a dominant tree height growth model using diameter at breast height (DBH) and site index curves for Pinus densiflora and Chamaecyparis obtusa growing in Jeolla-do. The altitude, slope, orientation, soil type, height and DBH of a dominant tree, and the ages of trees were measured for 3055 Pinus densiflora trees (611 plots) and 3345 Chamaecyparis obtusa trees (699 plots), and these data were used to develop a customized afforestation map. In the dominant tree height growth model, the relationship to DBH was used in the Petterson, Michailow, and log equations. Also, a dominant tree height growth model in relationship to age used the Chapman-Richards, Schumacher, and Gompertz equations. The Petterson equation, which has a lower mean square error, was used to model dominant tree height growth in relationship to DBH. In the model of dominant tree height growth in relationship to age, three kinds of equations were considered to have little statistical difference. Therefore, the Chapman-Richards equation was chosen for modeling on the national level. Thirtyyears was used as the base age, which is an important factor for estimating the site index curves. In the results, a more varied range of site index family curves with 6-18 was developed for Pinus densiflora, and with 6-22 for Chamaecyparis obtusa. As the new site index curves indicated influences on growth of Pinus densiflora and Chamaecyparis obtusa, a reasonable forest management plan will be possible in the future for Jeolla-do.

Characteristics of Ambient-Noise in the Shallow Coastal Area (천해 연안역에서의 수중소음의 특징)

  • 나정열;최진혁;김재완
    • The Journal of the Acoustical Society of Korea
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    • v.10 no.6
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    • pp.58-63
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    • 1991
  • 선박소음이 우세한 해역에서 측정된 수중소음의 크기를 분석한 결과 100Hz 미만에서는 깊은 수 심에서의 소음 크기가 낮은 수심에서보다 크게 나타나고 있다. 한편 계절적인 소음 크기의 변화는 dam 파 전달 조건에 좌우되며, 일반적인 spectrum shape은 Urick의 선박소음이 우세한 경우의 spectrum과 매우 유사하다.

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천곡동굴의 생물상소처

  • 김병우
    • Journal of the Speleological Society of Korea
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    • v.27 no.28
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    • pp.85-91
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    • 1991
  • 동굴생물은 식물과 동물, 미생물로 크게 구분되지만 태양광선이 완전히 차단된 동굴내 환경에서는 동굴동물들이 주종을 이루고 있다. 동굴내의 동물에 관한 연구는 1966년 고씨동굴, 용담굴을 시발로 고수굴, 천동굴, 노동굴, 백용굴, 대이굴 한선굴등 강원도내에 분포하는 동굴중 약 30%정도는 동물을 포함한 생물상이 조사되었다. 강원도의 동굴동물로서 확인된 것은 9강 309 141종이며 강별로는 충강이 9목 50종 주형강이 4목 49종 갑각강이 6목 18종의 순으로 우세하고 목별로는 거미 목이 15과 39종, 톡토기목이 7과 20종, 딱정벌레 목이 8과 15종으로 우세한 편이다(남, 1987)(중략)

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한국 서해안 함평만 펄 조간대 저서동물 군집

  • 임현식;김대원;최진우;제종길
    • Proceedings of the Korean Society of Fisheries Technology Conference
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    • 2001.05a
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    • pp.452-454
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    • 2001
  • 우리나라 서해안에 위치한 함평만은 만 입구의 폭이 만 내의 폭에 비해 상당히 좁아 1.8km정도 밖에 안 되는 반폐쇄적인 만이다. 또한, 창조류보다 낙조류가 우세하고 외해의 영향을 많이 받지 않는 독특한 환경으로서 침식작용보다는 퇴적작용이 우세한 곳이다. 본 연구에서는 함평만 펄 조간대에 서식하는 저서동물의 군집 구조를 파악하고 주요 우점종들의 공간분포 양상을 파악하고자 하였다. (중략)

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Converged Research on the Difference of Learning Style According to Sasang Constitution and Major and Brain Dominance (사상체질과 전공에 따른 학습스타일의 차이 및 뇌의 우세성에 관한 융합 연구)

  • Lee, Mi-kyung;Kim, Yun-Joo;Noh, Byoung Ho;Park, Young-MI
    • Journal of the Korea Convergence Society
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    • v.7 no.1
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    • pp.145-153
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    • 2016
  • The purpose of this study is to suggest a suitable learning style for 300 college students who are attending Duniversity in Jeonnam providence according to QSSC(Questionnaire of Sasang Contribution Classification), major and brain dominance after finding out the difference of learning style according to Sasang constitution and major and brain dominance according to major. First, Soyangin's learning style was found out extroversion -type, but soeumin's learning style was found out introvert type. There was difference on physical type on learning style according to major. Third, there were found difference for a few questionnaire of the dominance of brain. According to above findings, The results of study suggest that we need to develop a unique teaching method which based on learners constitution and major instead of uniform teaching method.