• Title/Summary/Keyword: 자기관

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Pallidotomy Guided by MRI and Microrecording for Parkinson's Disease (파킨슨환자의 자기공명영상과 미세전극기록을 이용한 담창구 파괴술)

  • Lee, Kyung Jin;Son, Hyung Sun;Park, Sung Chan;Cho, Kyung Keun;Park, Hae Kwan;Choi, Chang Rak
    • Journal of Korean Neurosurgical Society
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    • v.30 no.1
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    • pp.41-46
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    • 2001
  • Objective : The exact position of the lesion during the pallidotomy is critical to obtain the clinical improvement of parkinson's disease without damage to surrounding structure. Ventriculogrphy, CT(computed tomograpy) or MRI(magnetic resonance imaging) have been used to determine the initial coordinates of stereotactic target for pallidotomy. The goal of this study was to determine whether microelectrode recording significantly improves the neurophysiologic localization of the target obtained from MRI. Methods : Twenty patients were studied. They underwent a unilateral pallidotomy. Leksell frame was applied and T1 axial images parallel to the AC-PC(anterior commissure-posterior commissure) plane using a 1.5 Tesla MRI with 3mm slice thickness were obtained. Anteroposterior coordinate of target was chosen at 2mm in front of the midcommissural point and lateral coordinate between 19 and 22mm from the midline. The vertical coordinate was calculated on coronal slice using a fast spin echo inversion recovery sequence(FSEIR) related to the position of the choroidal fissure and ranged over 4-5mm below the AC-PC plane. Confirmation of the anatomical target was done on axial slices using the same FSEIR sequence . Microrecording was done at the pallidum contralateral to the symptomatic side using an electrode with a tip diameter of $1{{\mu}m}$ diameter tip and 1.1-1.4 mOhm impedance at 1000Hz. Electrophysiologic localization of the target was also confirmed intraoperatively by macrostimulation. Results : Microrecording techniques were reliable to define the transition from the base of the pallidum which was characterized by the disappearance of spike activity and by the change of the audible background activity. Signals from high amplitude neurons firing at 200-400Hz were recorded in the pallidal base. X, Y and Z coordinates of target obtained from the MRI were within 1mm from the X, Y, Z coordinates obtained with microrecording in 16 patients (80%), 15 patients(75%), 10 patients(50%) respectively. The difference of Y coordinate between on MRI and on microrecording was 4mm in only one patient. Conclusion : The MRI was accurate to localize the target within 1mm of the error from microrecording target in 70% of the patients. 4mm discrepancy was observed only once. We conclude that MRI alone can be used to determine the target for pallidotomy in most patients. However, microrecording technique can still be extremely valuable in patents with aberrant anatomy or unusual MRI coordinates. We also consider physiologic confirmation of the target using macrostimulation to be mandatory in all cases.

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Analysis of VTS Operators' Situational Awareness Based on In-Field Observation and Subjective Rating Methods (현장관찰법과 자기보고법에 기초한 VTS 관제사의 상황인식 분석)

  • Lee, Jae-Sik;Kim, Jung-Ho;Jang, En-Kyu
    • Journal of Navigation and Port Research
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    • v.40 no.6
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    • pp.375-384
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    • 2016
  • This study aimed to specify Vessel Traffic System(VTS) operators' situational awareness(SA) tasks and examine differences in subjective ratings for three levels of SA. Data for relative frequencies of SA tasks were collected by using direct in field observation. Subjective rating scores were obtained using a questionnaire method and compared in terms of VTS operator's gender and length of service career. The results are as follows. First, it was found that the VTS operators perform information perception task elements more frequently than those for information integration and prediction. Second, VTS operators tended to show subjectively lower evaluation scores for prediction than information perception or integration. Third, male VTS operators rated their SA ability higher than females. Fourth, the male VTS operators more than 15 years of career service showed higher subjective rating scores than those with under 5 years of service. Female VTS operators with different levels of career service showed a similar level of subjective rating scores. These results suggest that the frequency of SA related tasks and subjective SA evaluation can differ in terms of SA levels and individual differences.

A Study on IADL, Stress and Motivation on Healthy Lifestyle among Elderly People with Arthritis (관절염 노인의 IADL과 Stress, 건강생활동기에 대한 연구)

  • Kim, Jong Gun;Moon, Kyeung Hee;Lim, Eun Sun;Yoo, Jang Hak
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.17 no.3
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    • pp.209-217
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    • 2016
  • The aim of this study was to identify stress, motivation for a the healthy lifestyle and IADL of the elderly with arthritis. This study examined 117 elderly person over the age of 65 years living in S city. The data were analyzed using an independent t-test, Pearson correlation coefficients, and stepwise multiple regression with the SPSS Win 12.0 Program. Significant negative correlations were observed between stress and IADL, significant positive correlations between motivation on healthy lifestyle and IADL. The predictors on IADL were the physical area of stress (${\beta}=-0.354$, p<.001) and self-efficacy of motivation on healthy lifestyle (${\beta}=0.250$, p<.001). The model explained 18.5% of the variance. More study will be needed to explore a range of factors influencing the IADL and develop education programs for effective healthy lifestyle of elderly people with arthritis.

A Study on the Symptom of Temporomandibular disorder(TMD) and the Relationship with the Psychological Character using Symptom Check List-90-Revision(SCL-90-R) (간이정신진단검사(SCL-90-R)를 이용한 측두하악장애 증상과 심리특성과의 관계 연구)

  • Lee, Tae-Yong;Kim, Jung Suk;Lee, Hye-Eun
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.16 no.1
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    • pp.371-379
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    • 2015
  • This study examined the symptoms of temporomandibular disorder and the relationship with the psychological character using Symptom Check List-90-Revision (SCL-90-R). The self-administered questionnaire survey was implemented from March 1, 2014 to June 30, 2014 targeting 294 University Students in Daejeon and Gangwon area aged 20-31 years old (Men 140 persons, Women 54 persons). The data showed that the teeth grinding and the unilateral chewing out of corrupt practices in the mouth in relation to the use of the lower jaw showed a significant correlation (p<0.01) with the depth of symptoms of temporomandibular disorder, as the result of the simple psychodiagnosis inspection (SCL-90-R), and a significant correlation (p<0.05) with the depth of symptoms of temporomandibular disorder in the item excluding phobic anxiety (PHOB). The somatization (SOM) criteria out of individual psychological characteristic appeared to have the significant plus (+) effect on the depth of symptoms of temporomandibular disorder as a result of implementing multiple regression analysis by controlling the individual characteristic variables to check the influence of the psychological character of the study object on the symptom of temporomandibular disorder.

밀리터리 패션에 나타난 성적 이미지 연구 - 1990년대 여성복을 중심으로 -

  • 이화정;채금석
    • Proceedings of the Korea Society of Costume Conference
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    • 2001.04a
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    • pp.41-41
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    • 2001
  • 본 연구는 1990년대 밀리터리 패션에서 성적 이미 지의 표현양상을 살펴보고 각각의 미적 특성과 형성 요인을 분석하여 현대 여성의 다양한 미적 가치와 미의식을 이해하고자 한다. 1, 2차 세계대전을 계기로 자연스럽게 등장한 밀 리터리 패션은 20세기 초반에 여성의 사회참여와 지 위 향상으로 인해 실용성과 기능성을 추구하였고 중 반에 들어서면서 히피와 젊은 세대들에 의해 반전운 동의 일환으로 입혀져 안티패션의 의미를 내포하게 되었으며 후반에는 포스트모더 니즘으로 인해 다양성 을 추구하는 복고풍의 패션 트랜드로서 각종 컬혜션 에서 부각되었다. 그 결과 밀리터리 패션은 기존의 남성적 이미지뿐만 아니라 여성적 이미지도 표현하 게 되었다. 이러한 밀리터리 패션에 나타난 성적 이 미지는 권위적 이미지와 공격적 이미지의 남성적 이 미지와 보수적 이미지와 과시적 이미지, 관능적 이미 지의 여성적 이미지로 표현되어 나타났다. 남성적 이미지는 자유주의 페미니즘과 관련하여 남성 중심적 사고 방식에 도전하고자 하는 여성들의 자아의식이 한층 강하게 작용한 일종의 반 패션 현 상으로 권위적 이미지와 공격적 이미지로 특정지을 수 있다. 첫째, 권위적 이미지는 주로 고전적 군복과 제복의 이미지를 차용해 군복이 가지는 권위와 위엄을 표출 하였으며 남성 우월주의에 기초한 영웅주의를 가시 적으로 표현하였다. 이는 떳떳하게 자신의 위치를 세 우고자 하는 여성들의 욕구를 대변하였으며 영웅주 의와 가부장제도가 그 형성요인으로 작용하였다. 둘째, 공격적 이미지는 권위적 이미지에 대한 저 항과 기존의 성 정체성에 대한 저항으로써 전위적인 형태와 해체적인 표현으로 본래의 위엄있는 군복의 이미지를 무너뜨려 남성다웅의 표면적인 메시지를 약화시키고자 하였으며 반체제 정신, 성 정체성에 대 한 저항, 해체주의가 그 형성요인으로 작용하였다. 여성적 이미지는 급진주의 페미니즘과 관련하여 여성 본래의 성을 부각시키고 여성이 주체가 된 여 성중심적 사고로 여성의 감성적 심리를 패션을 통해 표현하고자 하였으며 보수적 이미지, 과시적 이미지, 관능적 이미지로 특징 지을 수 있다. 첫째, 보수적 이미지는 남성적 영역이라고 믿어왔 던 군복에 여성성을 강조하여 가늘고 유연한 실루엣 과 곡선적인 라인, 색채. 심플한 디테일만으로 밀리 터리 패션을 표현하여 남성중심의 이데올로기에서 벗어나 여성도 사회의 중심이 될 수 있음을 시사하 였으며 남성 권위의 추락이 그 형성요인으로 작용하 였다. 둘째, 과시적 이미지는 전통적 군복이 과거의 상 류층 엘리트들만의 아이템이었듯이 현대의 여성들은 신분과 매력의 과시를 표현하고자 금속 단추나 벨트 등 기타장식을 부각시킨 밀리터리 패션을 착용하였 으며 엘리트층에 대한 동경이 그 형성요인으로 작용하였다. 셋째, 관능적 이미지는 신체의 간접적인 노출과 직접적인 노출을 통해 여성의 신체에 의한 에로틱한 관능미를 부여하고자 하였으며 나르시시즘과 보이고 자 하는 욕구, 성적 유희가 그 형성요인으로 작용하였다. 그러므로 밀리터리 패션에 나타난 성적 이미지에 관한 연구는 패션을 통해 자아를 표현하고 미적으로 자기완성의 방편을 삼으려고 한 현대 여성들의 가치 관과 미의식을 이해하며 이를 충족시키고자 하는 패 션 트랜드와 디자인 개발에 도움이 될 것이다.

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Analysis of children's Reaction in Facial Expression of Emotion (얼굴표정에서 나타나는 감정표현에 대한 어린이의 반응분석)

  • Yoo, Dong-Kwan
    • The Journal of the Korea Contents Association
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    • v.13 no.12
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    • pp.70-80
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    • 2013
  • The purpose of this study has placed its meaning in the use as the basic material for the research of the person's facial expressions, by researching and analyzing the visual reactions of recognition of children according to the facial expressions of emotion and by surveying the verbal reactions of boys and girls according to the individual expressions of emotion. The subjects of this study were 108 children at the age of 6 - 8 (55 males, 53 females) who were able to understand the presented research tool, and the response survey conducted twice were used in the method of data collection by individual interviews and self administered questionnaires. The research tool using in the questionnaires were classified into 6 types of joy, sadness, anger, surprise, disgust, and fear which could derive the specific and accurate responses. Regarding children's visual reactions of recognition, both of boys and girls showed the high frequency in the facial expressions of joy, sadness, anger, surprise, and the low frequency in fear, disgust. Regarding verbal reactions, it showed the high frequency in the heuristic responses either to explore or the responds to the impressive parts reminiscent to the facial appearances in all the joy, sadness, anger, surprise, disgust, fear. And it came out that the imaginary responses created new stories reminiscent to the facial expression in surprise, disgust, and fear.

Consumption Values on the Intention to Re-use on Geriatric Hospitals (노인요양병원 재이용 의사에 영향을 미치는 소비가치 요인)

  • Kwon, Jin
    • The Journal of the Korea Contents Association
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    • v.13 no.12
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    • pp.921-930
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    • 2013
  • Objective: After introduction of the Elderly Long Term Care Insurance, number of geriatric hospitals increased greatly. However, few studies were conducted on the satisfaction of the patients of the geriatric hospitals especially on the intention to reuse geriatric hospitals. Methods: The current study modified Sheth's consumption value model, useful for the development of an effective marketing strategy for geriatric hospitals, and tested it in Korean circumstances. The survey was conducted at two municipal hospitals and three private hospitals in Seoul and Gyeonggi Province between August 1 and September 30 of 2012. Data were collected from 472 inpatients who are 60 years or older. The structured research tool was developed and distributed. Factor analysis and hierarchical logistic regression analysis were conducted using SPSS(version 14.0) Results: The result of the research suggested that the satisfaction on rehabilitation services, which is a functional value, among the consumption values was the strongest factor on the intention to reuse geriatric hospitals. Impression of high-end luxury, reliability of care, and outside locus of control on health followed. Conclusion: It is recommended that geriatric hospitals ought to improve rehabilitation programs, facilities, and equipments and enhance kindness of staff to encourage intention to reuse geriatric hospitals.

Biological Properties of Protoplasts Produced by Sucrose-induced Autolysis of Clostridium saccharoperbutylacetonicum (Sucrose용액중(溶液中)에서 유기(誘起)되는 Clostridium saccharoperbutylacetonicum의 자기용해현상(自己溶解現象)에 의(依)하여 형성(形成)된 Protoplast의 성상(性狀)에 관(關)한 연구(硏究))

  • Choi, K.H.
    • Korean Journal of Food Science and Technology
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    • v.10 no.2
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    • pp.136-142
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    • 1978
  • The young cells of Clostridiunm saccaroperbutylacetonicum were rapidly autolysed by exposing them to the hypertonic solution of sucrose(0.3-0.6M) without any other supplement to decompose the rigid cell wall. The cells were converted into the spherical cells by lysis. The spherical cells had following properties: (1) they were absent in the cell wall and osmotically fragile. (2) they were stabilized in the existence of 0.4M sucrose and 5mM $MgSO_4$ (3) they were resistant against adsorption of phage particles. (4) they allowed infection of the isolated phage DNA and produced progeny phage particles. (5) they were able to biosynthesize their macromolecules for a few hours according to a balanced manner of biosynthesis. (6) they were able to produce the bacteriocin particles by mitomycin C treatment. (7) they were unable to multiply. These results were all in the level of typical properties of bacterial protoplasts. It was apparent that the spherical cells formed by lysis occcurring by treatment with hypertonic sucrose were protoplasts.

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Effects of a Transtheoretical Model Based Exercise Behavior Improving Program on Blood Pressure and Physical Activity for Older Adults with Hypertension (범이론모형(Transtheoretical Model) 기반의 운동행위강화 프로그램이 고혈압 노인의 혈압 및 신체활동량에 미치는 효과)

  • Song, Mi-Soon;Kim, Seon-Ho
    • The Journal of the Korea Contents Association
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    • v.11 no.12
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    • pp.364-377
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    • 2011
  • This study was done to evaluate the effects of a transtheoretical model (TTM) based exercise behavior improving program for older adults with hypertension on the stage of change, processes of change, decisional balance, exercise self-efficacy, blood pressure and physical activity. A non-equivalent control pre-post design was used for this study. The subjects were 41 adults over 65 years of age with hypertension who did not practice regular exercise. The experimental group (n=20) received the 8-week TTM based exercise behavior improving program. The control group received hypertension self care management education. Descriptive analysis, $x^2$-test, t-test, paired t-test were used for analyzing the data using SPSS for Windows 14.0. As a results, there was a significant increase in stage of change, total score for processes of change, behavioral process of change, exercise self-efficacy, total physical activity, and walking in the experimental group compared to the control group. But, there were no significant differences between the two groups on the experiential processes of change, decisional balance, and blood pressure. The results of this study suggest that a TTM based exercise behavior improving program has positive effects on improving exercise behavior among older adults with hypertension.

Influence of Elderly People's Lifestyle on Successful Aging (노인의 라이프스타일이 성공적 노후에 미치는 영향)

  • Shin, Kun-Young;Ko, Jae-Ug
    • The Journal of the Korea Contents Association
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    • v.15 no.9
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    • pp.243-256
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    • 2015
  • This study aimed at investigating the effects of sub-variables of elderly people's lifestyle health and leisure oriented pursuits, outdoor and challenge pursuits, security and material pursuits, family oriented pursuits, and peer oriented pursuits on what they perceive to be successful later years. The background of this study was that there has been few study on the older population in Korea with focus on their cultural and traditional norms. The objective of this study was to investigate the effects of elderly people's lifestyle on what they perceive to be successful later years, thereby identifying practical implications for better social welfare associated with successful later years. Analysis was carried out of self reported questionnaires and self-interviews with elderly people aged over 65 frequenting a welfare center for elders and a community center in a city in Korea. In order to examine the effects, a reliability test, a descriptive analysis, a correlation analysis, and a multi-regression analysis were performed. The results of the analysis for sub-variables of lifestyle showed that health and leisure oriented pursuits, outdoor and challenge pursuits, security and material pursuits, family oriented pursuits, and peer oriented pursuits had significant positive impact on successful later years. The two most influential were peer oriented and family oriented pursuits. Drawing on the results, this study suggests that what is needed for dejected and lonely elderly members in the society is to provide them with opportunities for developing and keeping good relationships with friends and family members and there is a need for a system where old people, as consumers of cultural capital, can have easy access to a variety of cultural resources and activities at a local and regional level.