• The Journal of the Korea Contents Association
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• v.21 no.5
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• pp.755-764
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• 2021

This study aimed to examine the effects of the character education program applying mindfulness diary in 'H' girls' middle school, which is implemented as a practical character education at the school level while supplementing the limitations of existing character education programs. To achieve this, the pre- and post-design of a single treatment group in which data were collected over three time periods over two years for all 182 enrolled students was conducted. As a result of repeated measures of ANOVA to examine the significant mean change in the data, this program significantly improved the level of self-control, prosocial behavior, and gratitude of students. This was not only showing a significant improvement one year after the start of the program, but also showing a continuous significant improvement even one year later. Based on the above results, the implications and suggestions of this study were discussed.

• Applied Chemistry for Engineering
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• v.34 no.5
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• pp.501-506
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• 2023

Oleogel and oleogel emulsions of sunflower oil were prepared using sucrose ester and ceramide as mixed gelators. The crystal structure of the gelator in the oleogels and oleogel emulsion formulations was observed with a polarized optical microscope, and the dispersion form of water was confirmed with confocal laser scanning microscopy. Through the DSC thermogram analysis, it was confirmed that the crystal structure of ceramide disappeared when sucrose ester and ceramide were mixed, and the crystallinity of the mixed gelator increased further when water was added to the formulation. Changes in rheological properties such as viscosity and viscoelasticity according to the ratio of sucrose ester, ceramide, and water in the formulation were examined. As the content of ceramide and water increased, the viscosity, storage modulus, and loss modulus all increased, and the stability of the formulation also tended to increase.

• Journal of Korean Physical Therapy Science
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• v.3 no.2
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• pp.989-995
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• 1996

This study was conducted to investigate variation of cardiopulmonary function by use of building stairs, a questionnair survey and measurement was carried out for 50 students of department of physical therapy Andong Junior College from 20th September to 3rd October, 1995. The result were as follows: The average systolic blood pressure(SBP) of stability for 50 college students who were measured was 121.3 mmHg, the average diastolic blood pressure(DBP) of stability was 78.5 mmHg, the average pulse frequency of stability was 71.8(frequency/min), the average breathing frequency of stability was 20.4(frequency/min), and the body temperature of stability was $36.8^{\circ}C$. SBP among the second, third, and fourth floors was 129.0 mmHg, 127.0 mmHg, and, 132.0 mmHg (p=0.1919), DBP was 80.1 mmHg, 76.5 mmHg, and, 82.0 mmHg (p=0.4229), the pulse frequency was 74.0, 73.1, and 74.0(frequency/min). The breathing frequency among the second, third, and fourth floors was statistically gradually increased according to 21.4, 23.1 and 24.6(frequency/min)(p=0.0071). The body temperature among the second, third, and fourth floors was statistically less and less decreased according to $36.8^{\circ}C,\;36.6^{\circ}C$ and $36.5^{\circ}C$(p=0.0040). It was revealed by this study, the breathing frequency among the second, third, and fourth floors was statistically significant increased, the body temperature was statistically significant decreased.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 1999.11a
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• pp.509-515
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• 1999

신체를 구성하는 여러 가지 요소 중에서 인간이 일상생활을 하는 데에는 신진대사를 일정하게 유지하기 위한 인체내의 여러 가지 전달물질들이 그 구성에 맞게 역할을 수행하여야 한다. 그러나, 만약 그 구성 비율이 바뀔 때에는 인체 내에 이상이 발생하게 된다. 그 대표적인 예로는 운동을 심하게 하였을 경우 갈증과 근육의 피로감이 몰려오게 되는데 이는 세포내의 이온농도의 변화에 의한 것이며 이때 물, 스포츠 이온 음료 등을 섭취한다. 순간적으로 그 증상이 회복되지는 않지만 신경계 내에서 회복하는데 에는 많은 시간이 소요된다. 생리학, 임상적으로 나트륨과 물은 신진대사에 밀접한 연관이 있다. 인체의 나트륨은 음식물의 섭취량과 나트륨의 생리작용사이의 균형에 좌우된다. 건강한 상태에서 나트륨의 생리적인 손실은 무시할 만 하며 나트륨 생리작용은 음식물의 섭취량과 밀접한 관련이 있다. 칼륨은 단지 전체 신경계 용질의 일부이기 때문에 이것은 세포의 체적과 세포 용질의 삼투현상을 결정하는 주요한 것이다. 더욱더 칼륨은 신진대사 과정의 많은 중요한 변수가 되며, 세포밖의 칼륨은 전체중에 매우 작은 일부이긴 하지만 신경근육 작용에 매우 큰 영향을 준다. 세포안과 밖의 칼륨의 농도 비율은 흥분성 조직내의 막 전위의 주요한 결정요소가 된다. 본연구에서는 세포막 설계 후 시뮬레이션을 통한 정상상태의 세포막 전위의 활동전위 전달 특성과 Na, K의 이온 농도를 변화시킬 경우의 세포막 전위의 활동저위 전달 특성곡선을 비교 관찰하여 운동 생리학적인 신경세포내의 전달특성 메카니즘을 이해, 분석하였다.서의 속도를 최소한으로 줄이면서 스케줄링에 의해 시간 문제를 해결하는 방법을 제시하도록 한다. 이는 기초과학 수준이 높은 북방권 국가들의 과학자들이 주로 활용되고 있다는 점에서도 잘 알 수 있으며 우리의 과학기술 약점을 보완하는 원천으로써 외국인 연구 인력이 대안이 되고 있음을 시사한다. 본 연구에서는 한국 연구 조직에서 일하는 외국인 연구자들의 동기 및 성과에 영향을 미치는 많은 요인들을 확인할 수 있었다. 상관관계, 분산분석, 회귀분석 등을 통해 활용 성과에 미치는 영향 요인들을 도출하였다. 설문 분석을 통하여 동기 및 성과 사이에는 강한 상관관계가 존재하는 것을 확인할 수 있었으며 이는 전통적인 동기 이론들과 부합한다. 대부분의 변수가 동기 및 성과에 동시에 영향을 미치는 것으로 조사되었으며 그중에서도 조직 협력 문화, 외국인 연구자의 의사소통 및 협력성, 외국인 연구자의 연구 능력 관련 변수들 및 연구 프로젝트의 기술수명주기, 외국인 연구자의 기존 기술지식의 흡수 등이 가장 중요한 변수로 나타났다. 이는 우리가 주로 중국 및 러시아 과학자들을 활용하여 상업화하는 외국인 연구인력 활용 패턴과도 일치하는 결과이다. 즉 우호적인 조직문화를 가지고 있는 연구 조직에서, 이미 과학기술 지식을 많이 가지고 있고 연구 능력도 높은 외국인 과학기술자를, 한국에서 기술이 태동 또는 성장하고 있는 연구 분야에서 활용하는 것이 가장 성과가 좋다는 사실을 확인시켜 주고 있다. 국내에서 최초로 수행된 본 연구는 외국인 연구 인력의 활용 성과가 매우 높으며, 우리의 과학기술혁신시스템을 보완하는

• Korean Journal of Food Science and Technology
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• v.28 no.2
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• pp.345-351
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• 1996

Studies on extraction and color characteristics of purple sweet potato (PSP) pigment were performed to provide the basic information for the utilization of PSP as a new source of natural food colorant. PSP pigment was extracted well with the polar solvents such as distilled water, ethanol, and methanol. but hardly extracted with the non-polar solvents. Among the tested solvents, 20% ethanol solution containing 0.1% citric acid was found to be the most efficient for extraction of the pigment from PSP. PSP contained high amount of pigment not only in the epidermis but also in the flesh of the potato. The PSP pigment was heat stable even under pretreatments such as autoclaving and blanching of the potato before extraction. The optimum temperature of the extraction for the PSP Pigment was decided to be $30^{\circ}C$ by considering the stability and the rate of extraction. The pigment was markedly influenced by the change of pH. The color of the pigment solution was red at the pH range of $1.0{\sim}3.0$, became blue at $7.0{\sim}8.0$, then turned green at $9.0{\sim}10.0$. A characteristic batho-chromic shift of the pigment solution was observed as the pH of the solution increased.

• The korean journal of orthodontics
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• v.34 no.5 s.106
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• pp.371-379
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• 2004

The purpose of this study was to investigate the changes and types of statistical methods used in the Korean Journal of Orthodontics (KJO) and the American Journal of Orthodontics and Dentofacial Orthopedics (AJODO) from )999 to 2003. The frequency of use, transitions, assumption check of statistical methods and types of advanced statistical methods were examined from each journal. The study consisted of 247 articles published in the KJO and randomly chosen 50 articles per year which were original articles and used statistical methods T-test, analysis of variance(ANOVA), correlation analysis, nonparametric analysis. regression analysis chi-square test. factor analysis, were the order of statistical methods most frequently used in the KJO, while t-test. ANOVA, nonparametric analysis, correlation analysis, regression analysis, chi-square test. factor analysis. were the order of statistical methods used in the AJODO The changes of statistical methods observed in the KJO were not significant $(X^2=17.4\;p=0.5881)$ but the changes observed in the AJODO was seen to be significant $(x^2=42.4,\;p=0.0397)$ Some of the studies examined had overlooked the assumptions of the statistical methods employed. Data investigation such as outlier should be performed before analysis and alternative statistical approaches are applied for a small sample size. Types of advanced statistical methods were factor analysis and discriminant analysis in the KJO and Intention-To-Treat (ITT) analysis in clinical trials through multi-center, survival analysis and Generalized Estimating Equations (GEE) in the AJODO. Appropriate analysis approaches and interpretations should be applied for the correlated and repeated measurements of the orthodontic data set.

• Journal of Preventive Medicine and Public Health
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• v.21 no.2 s.24
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• pp.224-237
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• 1988

To determine the causes of and related factors to childhood injuries, the emergency room records and inpatient medical records were reviewed for 4,849 injured children out of 15,790 pediatric patients(<15 years old) who visited the emergency rooms of 3 university hospitals and 2 general hospitals in Taegu from 1 January to 31 December 1987. Out of total injured children, 54.675 were 3-8 years old and the male to female ratio of the total injured children was about 2:1. The leading causes of injury were falls and slips (29.1%) and traffic accident(28.2%). The frequency of injury was higher in May-October than the rest of months and 51.6% of the injuries occurred between 15 and 20 o'clock. Falls and slips took place most frequently at the stairway(25.7%). The most common interpersonal violence was inflicted injuries(85.6%) and there were 11 child rapes. Dog bites accounted for 67.6% of all biting injuries and it occured 2.9 times more in male than in female. CO intoxication was the most common cause of poisoning (45.3%) and scalding accounted for 85.2% of all burns. Common places of drownings were river (32.2%), swimming pool (22.6%) and construction site(19.3%). To prevent childhood injuries, it is recommended to eliminate the hazardous environmental factors, to provide safe playgrounds, to educate the children for safety from kindergarten and the general public through mass communication, to establish a strict safety standard for houses, public buildings and facilities, and playgrounds.

• Culinary science and hospitality research
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• v.15 no.2
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• pp.121-135
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• 2009

The pattern of liquor consumers started to change as the well-being trend and great interest in health have risen for the last few years. In particular, consumption of wine is gradually increasing with the findings revealing that drinking proper amount of wine is good for preventing various adult diseases such as sclerosis of the arteries, heart disease and aging. Accordingly, this study aims at understanding the importance of wine buyers' choice attributes when buying and drinking wine in order to contribute to satisfying customers, popularizing wine and expanding its base. From December 1 to 31 in 2008, it made a survey on natives and weekly settled population living in Seoul area who had bought wine at a wine retail shop with literature and positive researches. It made an application of SPSS 12.0 to analyze the importance of wine buyers' choice attribution based on the demographical characteristics and use behavior with such analysis methods as the frequency analysis, the factor analysis, the reliability test, ANOVA and multiple regression. The results are summarized as follows. First, it showed that there are significant differences between buying and drinking wine by producing countries, buying places, prices, companions except for the number of drinking times, drinking places, and information sources. Second, it showed that wine buyers' choice attributes such as brand characteristics and effects on health have a positive effect on customer satisfaction.

• Journal of Hospice and Palliative Care
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• v.14 no.3
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• pp.144-151
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• 2011

Purpose: This study was conducted to compare nursing students' attitudes toward death, self-esteem and life satisfaction according to clinical experience. Methods: We surveyed 1,030 nursing students from two different universities with a questionnaire consisting of items regarding attitudes toward death, self-esteem and life satisfaction. The data were analyzed using a PASW program. Results: Students with clinical experience scored 2.85 on the attitude toward death, while those without clinical experience scored 2.79 (t=2.775, P=0.006). Students with clinical experience had significantly higher self-esteem (t=4.541, P<0.001) and life satisfaction (t=4.050, P<0.001) than those without it. Students with clinical experience showed correlations between attitude toward death and self-esteem (r=0.159, P<0.001) and life satisfaction (r=0.090, P=0.025), while those without it did not (r=0.106, P=0.014). Conclusion: These results provide guidance for developing educational strategies such as educational program to help students build positive attitude toward death through their experience in clinical practice.

• 전기의세계
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• v.43 no.1
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• pp.13-19
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• 1994

전자식 안정기는 최근 에너지 절약 정책과 관련하여 조명기기분야의 관심의 대상이 되었고, 절전 효율이 높은 고품질의 전자식 안정기에 대한 연구 개발 및 보급이 점점 더 확대되고 있는 추세이다. 일반적으로 전자식 안정기는 수십 KHz의 고주파에서 형광등을 구동시킴으로써 빛의 깜박거림과 가청잡음이 없으며, 저주파(60Hz)에서 사용하는 재래식 안정기(choke coil 방식)에 비해 높은 절전 효과를 얻을 수 있다[1-4]. 특히, 빌딩 사무실의 경우 낮에도 창가의 형광등이 켜져 있어서 막대한 전력을 낭비하고 있는 실정이므로, 일조량에 따른 자동 전력 조절이 가능한 전자식 형광등의 출현이 기대되고 있다. 전자식 안정기의 보급 확대를 위해서는 절전 효과 뿐만 아니라, 품질 문제, 수명 문제등을 고려하여야 하는 바, 예를 들면 순간 점등으로 방전초기의 sputtering 현상에 의한 lamp의 수명 단축, 미소 입력전압 변동에 따른 급격한 광출력의 변화로 절전 효과의 상실과 이상동작에 의한 스위칭 소자의 파괴 현상, 고주파 스위칭시 발생되는 전력손실과 noise등에 대한 대책이 요구되고 있다. 이러한 점을 개선하기 위해 추가되는 회로는 전자식 안정기 시스템을 더욱 복잡하게 만들고, 경제적으로 원가 부담을 주기 때문ㅇ 고품질의 전자식 안정기를 보급하는데 어려운 점으로 부각되고 있다. 본 고에서는 이러한 문제를 해결하기 위하여 조광기능을 포함한 다양한 제어회로와 보호회로를 조광기능을 포함한 다양한 제어회로와 보호회로를 1 chip에 수용하는 고품질의 전자식 안정기 제어용 집적회로에 대해서 기술하고자 한다.되어 나아갈 기술의 조류에도 부합하는 형태라 하겠다. 그러나 이 방식은 기 언급한 바와 같이 분산처리를 관장하는 운영체계의 개발에 상당한 고전이 따르리라 보여지며, 또한 보다 상세한 연구가 선행되어야 하겠지만 개발된 상용의 통신 프로토콜로서는 병렬처리의 성능을 극대화 하기에는 여러가지 제약이 있을 것으로 예측된다.기기들이 어떻게 응용되고 있는지 살펴보기로 하자. real informations would be available. Results are compared with those of optimal power flows.기능시험을 완료했으며 실제 line-of-sight(LOS) 시스템 구현에 적용중이다. 시대를 살아 갈 회원들이다. '컨텐츠의 시대'가 개막되는 것이며, 신세기통신과 SK텔레콤은 선의의 경쟁 과 협력을 통해 이동인터넷 서비스의 컨텐츠를 개발해 나가게 될 것이다. 3배가 높았다. 효소 활성에 필수적인 물의 양에 따른 DIAION WA30의 라세미화 효율에 관하여 실험한 결과, 물의 양이 증가할수록 그 효율은 감소하였다. DIAION WA30을 라세미화 촉매로 사용하여 아이소옥탄 내에서 라세믹 나프록센 2,2,2-트리플로로에틸 씨오에스터의 효소적 DKR 반응을 수행해 보았다. 그 결과 DIAION WA30을 사용하지 않은 경우에 비해 반응 전환율과 생성물의 광학 순도는 급격히 향상되었다. 전통적 광학분할 반응의 최대 50%라는 전환율의 제한이 본 연구에서 찾은 DIAION WA30을 첨가함으로써 성공적으로 극복되었다. 또한 고체 염기촉매인 DIAION WA30의 사용은 라세미화 촉매의