• 제목/요약/키워드: Research movement

검색결과 4,225건 처리시간 0.042초

Sleep-Promoting Effect of Ecklonia cava: Ethanol Extract Promotes Non-rapid Eye Movement Sleep in C57BL/6N Mice

  • Yoon, Minseok;Kim, Jin Soo;Jo, Jinho;Han, Daeseok;Cho, Suengmok
    • Fisheries and Aquatic Sciences
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    • 제17권1호
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    • pp.19-25
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    • 2014
  • We investigated the effects of Ecklonia cava ethanol extract (ECE) on sleep architecture and sleep profiles. ECE was orally administered at a dose of 100, 250, or 500 mg/kg to C57BL/6N mice and its effects were measured by recording electroencephalogram (EEG) and electromyogram. Administration of ECE (250 and 500 mg/kg) significantly induced non-rapid eye movement sleep (NREMS) without affecting rapid eye movement sleep. The increase in NREMS by ECE (500 mg/kg) was significant (P < 0.05) during the first 2 h after administration. In addition, ECE had no effect on EEG power density (an indicator of sleep quality) in NREMS. These results suggest that ECE induces NREMS in a manner similar to physiological sleep.

Quantitative analysis of the TMJ movement with a new mandibular movement tracking and simulation system

  • Kim, Dae-Seung;Hwang, Soon-Jung;Choi, Soon-Chul;Lee, Sam-Sun;Heo, Min-Suk;Heo, Kyung-Hoe;Yi, Won-Jin
    • Imaging Science in Dentistry
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    • 제38권4호
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    • pp.203-208
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    • 2008
  • Purpose : The purpose of this study was to develop a system for the measurement and simulation of the TMJ movement and to analyze the mandibular movement quantitatively. Materials and Methods : We devised patient-specific splints and a registration body for the TMJ movement tracking. The mandibular movements of the 12 subjects with facial deformity and 3 controls were obtained by using an optical tracking system and the patient-specific splints. The mandibular part was manually segmented from the CT volume data of a patient. Three-dimensional surface models of the maxilla and the mandible were constructed using the segmented data. The continuous movement of the mandible with respect to the maxilla could be simulated by applying the recorded positions sequentially. Trajectories of the selected reference points were calculated during simulation and analyzed. Results : The selected points were the most superior point of bilateral condyle, lower incisor point, and pogonion. There were significant differences (P<0.05) between control group and pre-surgical group in the maximum displacement of left superior condyle, lower incisor, and pogonion in vertical direction. Differences in the maximum lengths of the right and the left condyle were 0.59${\pm}$0.30 mm in pre-surgical group and 2.69${\pm}$2.63 mm in control group, which showed a significant difference (P<0.005). The maximum of differences between lengths of the right and the left calculated during one cycle also showed a significant difference between two groups (P<0.05). Conclusion : Significant differences in mandibular movements between the groups implies that facial deformity have an effect on the movement asymmetry of the mandible. (Korean J Oral Maxillofac Radiol 2008; 38 : 203-8)

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Evaluation of Body Movement during Sleep with a Thermopile, Wavelets and Neuro-fuzzy Reasoning

  • Yoon, Young-Ro;Shin, Jae-Woo;Lee, Hyun-Sook;Jose C.Principe
    • 대한의용생체공학회:의공학회지
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    • 제25권1호
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    • pp.5-10
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    • 2004
  • 체동은 수면 분석에 있어서 중요한 변수중의 하나이다. 본 연구에서는 수면 중에 발생하는 체동을 비접촉 방식으로 검출하기 위하여 4채널의 써모파일 검출기를 구현하였으며, 써모파일 센서를 이용한 방식의 체통 검출 가능성을 확인하기 위해 열적외선 카메라를 통해 획득한 영상을 써모파일의 수학적 모델에 적용하였다 합성된 체동 신호는 Haar 웨이브렛을 이용하여 변환함으로써 체통이 발생한 시점과 움직임의 크기를 상체 및 하체로 나누어 순간 체동을 검출하였다. 또한 뉴로-퍼지 알고리즘인 ANFIS를 이용하여 발생한 체동이 상체만 움직인 것인지 또는 하체만 움직인 것인지 또는 몸 전체가 움직인 것인지에 대한 부위별 체동을 검출하였고, 총 3명의 피험자에 대해 60분간의 데이터를 획득하여 실험한 결과 순간 체동과 부위별 체통에 대해 각각 평균 96.3%와 39.2% 의 검출률을 나타냈다.

쇼트 클립 플랫폼 틱톡(TikTok)에 나타난 보디 포지티브 무브먼트 콘텐츠의 주제 유형 및 표현기법 (A study on the thematic types, expression techniques, and impact of body positive movement content on the short clip platform TikTok)

  • 김고운
    • 복식문화연구
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    • 제32권1호
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    • pp.17-37
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    • 2024
  • This study examines the rise of the Body Positive Movement on TikTok and its role as a form of online content activism influencing the fashion design and industry. Through a combination of literature review and case study methodology, the study explores the expression techniques and thematic types of Body Positive Movement on TikTok. Reviews of literature, previous studies, online articles, fashion journals, and relevant search terms on TikTok informed a definition of Body Positive Movement and an analysis of its formation and rise. The research findings confirm the impact TikTok content on Body Positive Movement has on the fashion industry in addressing external factors (i.e., 'Appearance', 'Race', 'Aging', 'Physical Disability') and intrinsic factors (i.e., 'Acceptance of Diversity', 'Self-Esteem', 'Rejection of Stereotypes', 'Appropriate Representation', 'Information Provision'). The key external factor , 'Appearance', includes subcategories such as 'Body Shape', 'Body Hair', 'Skin', and 'Facial Features'. TikTok content creators on fashion creatively combine music, emojis, and visual storytelling to exhibit positive self-perception concerning these factors. A significant finding of the study is that short clips predominantly manifesting external factors differentiate into informative or enlightening videos associated with intrinsic factors. The study underscores Body Positive Movement's important influence on the fashion industry from design to presentation.

현대 의상에 나타난 움직임의 표현성 (A study of Movement on Modern Fashion)

  • 이상례;임영자
    • 복식
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    • 제20권
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    • pp.125-135
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    • 1993
  • The purposes of this research are firstly to define the characteristics of movement on the costume, secondly to demonstrate that fine art, expecially in relation to kinetic art, has become a good motif in modern costume de-sign, and thirdly to examin the characteristics of movement as shown in modern costume de-sign. For this study, we selected and analyzed some costume designs among those introduced in fashion magazines, which are Collections, Fashion-Preview, Fashion Show, Collezioni, and L'Officiel that have been issued since 1988. As this research is carried out only through the analysis of pictures, it is not ac-companied by a study on material itself. The result of this study is that the ex-pression of movement on modern fashion can be shown in two ways, one is the inclusive and subordinate movement expressed on the cloth-ing according to the motion of body when they are worn, and the other is the movement caused by the very designs of clothing. And the latter can be also divided in two ways, the illusionistic movement and the actual move-ment. The expression of actual movement is made through the emphasis of direction, rhythm, and dimension of the costume. And the illusionistic movement is expressed by the de-sign to which the textile pattern or reflection of light is applied so that the movement is larger than the actual movement. A sense of direction expressed on the cos-tume by the actual movement creates a light rhythm and adds interest to the costume. This reflects a part of psychology of modern men who are not accustomed to the statics. In the rapidly changing society of information our modern men seek after movement even in the statics. It is also true in the clothing and they seem to get a psychological rest through the immediated visual change as shown in fashion design. The simple and cheerful rhythm expressed by the illusionistic movement on the costume is attempted in order to overcome the static tediousness caused by simple design. These elements of movement cause the en-largement of visible range and create another enlarged shape other than the real one, so that they come to remove the dullness and monot-ony in costume design and provoke interest in costume, as if kinetic art reveals the various aspects that transcend the closed area of fine art upon the motif of 'movement'. finally, as this paper deals with the ex-pression of movement as shown in the costume design which prevailed after 1988, it is desir-able hereafter to study more about the fashion since 1950 when kinetic art began in earnest, along with the comparative study on the ex-pression of movement in our Korean designer's and foreign designer's works.

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현단계 어린이도서관운동의 내용과 특성에 관한 연구 (A study on the Children Library Movement of the Present)

  • 이연옥
    • 한국도서관정보학회지
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    • 제36권1호
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    • pp.309-327
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    • 2005
  • 이 연구에서는 현재 전개되고 있는 어린이도서관운동인 시민단체에 의해 진행되는 '기적의 도서관운동'. 부천지역 '마을마다 작은 도서관 만들기 운동', 개인 및 단체에 의해 주도되는 민간의 '어린이 작은 도서관운동'을 고찰하였다. 각 운동의 내용과 특성, 의의와 한계를 살펴보고 이를 토대로 향후 어린이도서관운동의 방향과 과제를 조망해 보았다.

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韓國 環境運動의 발전에 關한 一考 (A Study on the Development of Environmental Movement of the Rep. of Korea)

  • 김성수
    • 한국환경과학회지
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    • 제12권1호
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    • pp.1-14
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    • 2003
  • This research attempts to describe and explain the development of Korean environmental movement. It finds that the emergence of Korean environmental movement was constrained by the authoritarian nature of Korean politics. In 1970s, environmental movements were primitive and were not organized ones. With the wake of democratization in the 1980s, Korean environmental movement began to get some momentum. And in the 1990s, environmental movement to save clean water has achieved some success in certain areas. However, the emphasis on the growth of local economy in the age of local autonomy system has brought heavy degradation of local environment. The coming of the phenomena of Globalization and Cyber-Age has brought positive effects on Korean environmental movement.

1993-2008期间 韩国农民运动与其对中国的启示 -以市场开放化和政府信赖危机为中心- (Occurrence and Development of Korean Farmers' Movement (1993-2008) and Its Implications to China - Focusing on Market Globalization and Government Trust Crisis -)

  • 박경철
    • 농촌지도와개발
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    • 제26권1호
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    • pp.47-55
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    • 2019
  • The aim of this article is to critically explore the history, methods, characteristics and cause mechanism of Korean farmers' movement who resisted to market globalization from the perspective of social movement theory. I believe that the most influential elements of Korean farmers' movement are three structural elements; namely resentment, political opportunity structure, and media and discourse. Therefore, focusing on the three elements, I analyze the emergence and expansion of the Korean farmers' movement against market globalization from 1993 to 2008. And I analyze the roles of these three structural elements which played in farmers' social movement in South Korea. Particularly, this article analyses in perspective of market globalization and government trust crisis about the basic reason why Korean farmers' movement was so fierce in process of agricultural market globalization.

Three-dimensional kinematic motion analysis of door handling task in people with mild and moderate stroke

  • Lee, Jung Ah;Kim, Eun Joo;Hwang, Pil Woo;Park, Han Ram;Bae, Jae Hyuk;Kim, Jae Nam
    • Physical Therapy Rehabilitation Science
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    • 제5권3호
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    • pp.143-148
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    • 2016
  • Objective: This study aimed to quantify one of the useful upper extremity movements to evaluate motor control abilities between the groups of people with mild and moderate arm impairments performing a door handling task. Design: Cross-sectional study. Methods: Twenty-one healthy participants and twenty-one persons with chronic stroke (9 mild stroke and 12 moderate stroke) were recruited for this study. Stroke participants were divided into 2 groups based on Fugle-Meyer Assessment scores of 58-65 (mild arm) and 38-57 (moderate arm). All they performed door handling task including the pronation and supination phases 3 times. We measured some movement factors which were reaction time, movement time, hand of peak velocity, hand of movement units to perform door handling task using the three-dimensional motion analysis. Results: The majority of kinematic variables showed significant differences among study groups (p<0.05). The reaction time, total and phase of movement time, hand of peak velocity, the number of movement units discriminated between healthy participants and persons with moderate upper limb stroke (p<0.05). In addition, reaction time, total and phase of movement time, the number of movement units discriminated between those with moderate and mild upper limbs of stroke patients (p<0.05). Conclusions: Three-dimensional kinematic motion analysis in this study was a useful tool for assessing the upper extremity function in different subgroups of people with stroke during the door handling task. These kinematic variables may help clinicians understand the arm movements in door handling task and consist of discriminative therapeutic interventions for stroke patients on upper extremity rehabilitation.

1990년대 초 독서 대중화 운동과 독서교육 (A Study on Reading Popularization Movement and Reading Education in the Early Period of 1990's)

  • 윤금선
    • 한국도서관정보학회지
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    • 제39권1호
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    • pp.377-407
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    • 2008
  • 이 연구는 1990년대 초기 독서운동과 독서교육의 양상을 고찰하는 데 목적을 두었다. 특히 본고는 근현대 독서 대중화 운동을 전반적으로 검토하기 위한 시론으로서 일제 강점기, 건국기, 1950년대, 1960년대, 1970년대, 1980년대 독서 대중화 운동 연구에 이은 후속 연구에 속한다. 이러한 일련의 연구 목적은 시기별 독서 현상의 변화상을 비교 분석하여, 오늘에 이르는 독서운동과 독서교육의 현주소를 찾아보려는 데 있다. 제반적인 독서 현상에 대한 분석은 그에 따른 향후 독서운동과 독서교육을 보다 효과적으로 전개시키는 토대를 마련할 것으로 보인다. 본론에서는 첫째, 1990년대 초기 독서 대중화 운동의 양상, 둘째, 1990년대 초기 독서경향 등으로 대별하여 고찰하였다. 특별히 독서경향에서는 사회 전반적인 독서운동의 양상과 공교육 내에서의 독서교육 현상을 비교하려는 목적에서, 일반독서와 학생독서를 구별하여 살폈다.

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