• 제목/요약/키워드: Scale of Center

검색결과 5,635건 처리시간 0.033초

한국어판 아동식습관 설문지(Korean Children's Eating Behaviour Questionnaire, K-CEBQ)의 타당화 예비연구 (Pre-study of Validation of the Children's Eating Behaviour Questionnaire in Korean Children)

  • 이민정;장규태;한윤정
    • 대한한방소아과학회지
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    • 제23권1호
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    • pp.127-140
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    • 2009
  • Objectives In this study, we obtained Korean version of CEBQ (Children's Eating Behaviour Questionnaire) and verify whether it is reliable or not. Methods Total 106 parents completed this questionnaire, and we gathered children's BMI data and examined the relationship between children's BMI and mean scale scores. Results 1. This study results confirmed the theorectical factor structure, with acceptable internal reliability and between-subscale correlations. 2. There are significant mean scale scores difference between anorexia group and control group. 3. There are significant relations between children's BMI and mean scale scores. Conclusions The results support the use of the CEBQ as a phsychometrically sound tool for assessing children's eating behaviours in Korean children.

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Full-scale study of conical vortices and roof corner pressures

  • Wu, F.;Sarkar, P.P.;Mehta, K.C.
    • Wind and Structures
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    • 제4권2호
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    • pp.131-146
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    • 2001
  • A full-scale synchronized data acquisition system was set up on the roof of the experimental building at the Texas Tech University Wind Engineering Research Field Laboratory to simultaneously collect approaching wind data, conical vortex images, and roof corner suction pressure data. One-second conditional sampling technique has been applied in the data analysis, which makes it possible to separately evaluate the influencing effects of the horizontal wind angle of attack, ${\theta}$, and the vertical wind angle of attack, ${\varphi}$. Results show a clear cause-and-effect relationship between the incident wind, conical vortices, and the induced roof-corner high-suction pressures. The horizontal wind angle of attack, ${\theta}$, is shown to be the most significant factor in influencing the overall vortex structure and the suction pressures beneath. It is further revealed that the vertical wind angle of attack, ${\varphi}$, plays a critical role in generating the instantaneous peak suction pressures near the roof corner.

환자교육을 위한 유방암 환자의 지식측정 도구개발 (Development and Validation of a Knowledge Scale for Patients with Breast Cancer (KS-Br))

  • 이건숙;이란;김수현
    • 종양간호연구
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    • 제10권1호
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    • pp.59-67
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    • 2010
  • Purpose: The purpose of this study was the development and validation of knowledge scale for patients with breast cancer (KS-Br) in Korea. Methods: The process included the construction of a conceptual framework, generation of preliminary items, and the test of validity and reliability of the scale. Thirty-seven items were developed through an evaluation process by 10 experts and 24 items were finally confirmed through item analysis. Psychometric testing was performed with a convenient sample of 303 women with breast cancer. The data was analyzed using independent t-test, Pearson's correlation, and calculation of KR-20. Results: Participants averaged 70.8% correct on the test. The KS-Br has 24 items consisting of 5 categories: incidence of breast cancer, diagnosis and treatment, symptom management, sexuality, and maintenance of daily life. Validity was supported by the use of content validity, known-group technique, and criterion-related validity. Women who had undergone education intervention scored significantly higher than women who had not (p<.001). KS-Br scores were significantly correlated with those of Mishel's Illness Uncertainty Scale (r=-.214, p<.001). Internal consistency of the KS-Br was appropriate (KR20=.805). Conclusion: This study reveals that the KS-Br is reliable and valid scale to measure the knowledge of breast cancer. Therefore, this scale can be effectively utilized to assess the knowledge of patients with breast cancer regarding their disease.

폴리카보네이트 소재의 자연폭로와 실내촉진 내후성 영향 (Influence of natural and accelerated weathering of polycarbonate)

  • 문정미;장호진;김창환
    • 한국표면공학회지
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    • 제55권6호
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    • pp.383-389
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    • 2022
  • Natural(outdoor) and accelerated(artificial) weathering tests were performed to investigate their influence on polycarbonate. The polycarbonate materials were prepared of various formulations divided into three batches, with existing, development materials1, development materials2, containing mixture of UV additives. Weathering tests were carried out as outdoor weathering(Seosan, South Korea) and accelerated weathering(xenon-arc), and the results analysis were evaluated based on yellow-index(YI), scanning electron microscope(SEM/EDS), energy dispersive x-ray spectroscopy(XRD), and gel permeation chromatography(GPC). Among the three materials, processing method development materials1 with UV stabilizer was excellent in weathering. This study can provide basic data for standardization of development and performance evaluation on livestock barn roof.

Using Electron-beam Resists as Ion Milling Mask for Fabrication of Spin Transfer Devices

  • Nguyen Hoang Yen Thi;Yi, Hyun-Jung;Shin, Kyung-Ho
    • Journal of Magnetics
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    • 제12권1호
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    • pp.12-16
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    • 2007
  • Magnetic excitation and reversal by a spin polarized current via spin transfer have been a central research topic in spintronics due to its application potential. Special techniques are required to fabricate nano-scale magnetic layers in which the effect can be observed and studied. This work discusses the possibility of using electron-beam resists, the nano-scale patterning media, as ion milling mask in a subtractive fabrication method. The possibility is demonstrated by two resists, one positive tone, the ZEP 520A, and one negative tone, the ma-N2403. The advantage and the key points for success of this process will be also addressed.

급성기 중풍환자의 설진(舌診)과 National Institute of Health Stroke Scale과의 상관성 연구 - 다기관 임상연구 (The Relationship between Tongue Diagnosis and National Institute of Health Stroke Scale in Acute Stroke Patients - Multi Center Trials)

  • 이인환;신애숙;곽자영;조승연;박성욱;박정미;고창남;조기호;배형섭
    • 대한중풍순환신경학회지
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    • 제9권1호
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    • pp.1-7
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    • 2008
  • Objectives : We questioned whether the tongue diagnosis is effective for judging seriousness of cerebrovascular accidents. This study is about the relationship between tongue diagnosis and National Institute of Health Stroke Scale(NIHSS) in acute stroke patients. Methods : 738 subjects were recruited from the patients admitted to the department of internal medicine at Kyung-Hee University oriental medical center, Kyung-Hee University East-West Neo Medical Center, Kyungwon university Incheon oriental medical center, Kyungwon university Songpa oriental medical center and DongGuk university Ilsan oriental medical center from April 2007 to August 2008. We looked at the tongue as in three dimensions of tongue color, tongue fur color and tongue body. And, we calculated NIHSS means according to the subtypes of three dimensions. Results : 1. In the Tongue color, from the most commom to least common colors were pale red, red, pale, bluish purple, and ect. The NIHSS mean score of red is significantly higher than pale and pale red. 2. In the Tongue fur color, white fur was the most common, and then yellow fur, etc. There is no significant difference among three subtypes in the NIHSS mean score. 3. In the Tongue body, etc. is the most common, followed by teeth-marked tongue, enlarged tongue, blood patchy tongue, and mirror tongue. The NIHSS mean score of teeth-marked tongue is significantly lower than blood patchy tongue and mirror tongue. Conclusions : The tongue color and the tongue body are useful indexes for judging seriousness of cerebrovascular accidents presented by NIHSS. But in our study, the tongue fur color was not useful. Further study is necessary on the tongue fur.

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A Novel Data Driver for Passive Matrix Organic Light-emitting Devices with High Gray Scale Images utilizing a High Uniform Current

  • Shin, Hong-Jae;Kwack, Kae-Dal;Kim, Tae-Whan
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2005년도 International Meeting on Information Displayvol.II
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    • pp.1398-1400
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    • 2005
  • A novel data driver for passive matrix organic lightemitting devices (PM-OLEDs) with high gray scale images was designed. The proposed circuit consisted of a main current bias circuit as well as sample & hold circuits in each channel of the data driver to compensate a current offset. These results indicate that a data driver designed by using the current offset compensation technique holds promise for poten tial applications in PM-OLED displays with high gray scale images.

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탈북 청소년의 정신병리와 자살과의 관련성 (The Correlation of Psychopathology and Suicide in North Korean Refugee Adolescents)

  • 임동균;박수빈;김승현;임우영;전진용
    • 정신신체의학
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    • 제25권2호
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    • pp.95-100
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    • 2017
  • 연구목적 탈북 청소년의 정신병리와 자살 관련 특성과의 관계를 알아보고자 이 연구를 수행하였다. 방 법 국내에 입국 후 대안학교에 재학중인 탈북 청소년 104명을 대상으로 연구를 수행하였다. 한글판 역한연구센터 우울척도, 한글판 Revised Children's Manifest Anxiety Scale, 한글판 Rosenberg Self-Esteem Scale와 함께 자살 사고, 자살 계획, 자살 시도에 대한 유무룰 조사하였다. 결 과 자살 사고를 경험한 탈북청소년은 21명으로 전체의 20.19% 이었으며, 우울 증상(Z=-4.050, p<0.001), 불안 증상(Z=-2.076, p<0.05), 자존감(Z=-2.328, p<0.05)은 자살 사고의 유무에 따라 통계학적으로 유의한 차이가 관찰되었다. 로지스틱 회귀분석 결과 우울 증상(p<0.05)이 통계학적으로 유의하게 자살 사고를 예측하였다. 결 론 탈북 청소년의 우울과 불안에 대한 관심이 탈북 청소년의 자살에 대한 도움을 주는데 기여할 수 있을 것이다.

한국판 우울과 신체 증상 평가 척도(Depression and Somatic Symptom Scale, DSSS)의 신뢰도와 타당도 (Reliability and Validity of Korean Version of Depression and Somatic Symptom Scale(DSSS))

  • 김건우;홍진표;박승진;최지혜;최혜라
    • 대한불안의학회지
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    • 제7권1호
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    • pp.9-15
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    • 2011
  • Objectives : We examined the reliability and validity of the Korean version of the Depression and Somatic Symptom Scale (DSSS) in Korean patients with depressive symptoms. Methods : Participants were 55 outpatients diagnosed with major depressive disorder, a depressive episode of bipolar I disorder, somatoform disorder, panic disorder, generalized anxiety disorder, or post-traumatic stress disorder according to the DSM-IV criteria. We assessed them using the Korean versions of the DSSS, Hamilton Depression Rating Scale (HDRS), and Quick Inventory of Depressive Symptomatology Self Report (QIDS-SR). Results : The Korean version DSSS had a Cronbach's alpha of 0.90. Moreover, each item's correlation with the total score was statistically significant (r=0.24-0.71, p<0.01). The test-retest correlation coefficient (r=0.83, p<0.01) was relatively high, and the DSSS correlations with the HDRS and QIDS-SR were 0.77 and 0.74, respectively. Conclusion : These results demonstrate that the Korean version of the DSSS could be a reliable and valid tool for screening and assessing depressive patients. The Korean version of the DSSS will be a useful tool for screening both depressive and somatic symptoms in Korea.