• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.10
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• pp.231-242
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• 2018

This study was performed to determine the effects on psychological and physiological variables of Horticulture Activity Caring Program for major company white-collar workers. Fifty three White-collar Workers participated in study. They were assigned to two groups (experimental group and control group) in random order. Random order is used Excel 2010 program RAND function of Microsoft. During the eight-week trial, the experimental group was treated with Horticulture Activity Caring Program weekly for 90 minute per session. The control group wasn't treated. Measurements of variables (stress, depression, blood glucose, total cholesterol, HDL-C, and LDL-C) were performed at weeks 0 and 8 for all participant. Changes in variables were calculated from baseline to trial completion. The data were collected from July to September 2014. SPSS 21.0 was used for the statistical analysis. : Horticulture Activity Caring Program had positive effects on depression (z=-4.57, p< .000). Conclusion of the study suggest the Horticulture Activity Caring Program may have positive effects on improving depression. We expect that the Horticulture Activity Caring Program will become a complementary and alternative therapy of mental health promotion for the white collar workers.

• The Journal of the Korea Contents Association
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• v.20 no.2
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• pp.534-546
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• 2020

The purpose of this study is to prove the positive effect of mind and body healing through the modified meditation method of Southern Buddhism as a systematic practice to concentrate or empty consciousness of the Buddhist temple in Dhammakaya, Thailand. To investigate the effects of the program on the participants, the experimental measurement tools in this study include the Immeasurable scale, spirituality scale, simple mental test scale, and blood pressure scale, pulse meter, thermometer, and recorder. When the measured values were compared with the corresponding t-test, there were some differences before and after the measurements based on the significance probability p <0.05. As a result, there was a significant correlation between spiritual support scale and the Immeasurable scale. In addition, the results of analyzing the data through interviews showed that the body and physiologically effective concentration was well after the meditation experience, and the intention to actively utilize this meditation method was confirmed. In this study, it was confirmed that there was a positive effect of the Samata practice method of Concentration meditation(CM), and thus the theoretical and experimental effects of intensive meditation were presented. I hope that these studies will accumulate and follow-up studies will be conducted through intensive meditation as a healing effect.

• Korean Journal of Psychosomatic Medicine
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• v.27 no.2
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• pp.101-110
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• 2019

Objectives : It is not clear which clinical variables are most closely associated with delirium in the Intensive Care Unit (ICU). By comparing clinical data of ICU delirium and non-delirium patients, we sought to identify variables that most effectively differentiate delirium from non-delirium. Methods : Medical records of 6,386 ICU patients were reviewed. Random Subset Feature Selection and Principal Component Analysis were utilized to select a set of clinical variables with the highest discriminatory capacity. Statistical analyses were employed to determine the separation capacity of two models-one using just the selected few clinical variables and the other using all clinical variables associated with delirium. Results : There was a significant difference between delirium and non-delirium individuals across 32 clinical variables. Richmond Agitation Sedation Scale (RASS), urinary catheterization, vascular catheterization, Hamilton Anxiety Rating Scale (HAM-A), Blood urea nitrogen, and Acute Physiology and Chronic Health Examination II most effectively differentiated delirium from non-delirium. Multivariable logistic regression analysis showed that, with the exception of vascular catheterization, these clinical variables were independent risk factors associated with delirium. Separation capacity of the logistic regression model using just 6 clinical variables was measured with Receiver Operating Characteristic curve, with Area Under the Curve (AUC) of 0.818. Same analyses were performed using all 32 clinical variables;the AUC was 0.881, denoting a very high separation capacity. Conclusions : The six aforementioned variables most effectively separate delirium from non-delirium. This highlights the importance of close monitoring of patients who received invasive medical procedures and were rated with very low RASS and HAM-A scores.

• Proceedings of the KIEE Conference
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• 2007.07a
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• pp.1900-1901
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• 2007

한의학에서 혀는 인체 내 생리, 병리적 변화를 반영하여 진단에 있어 중요한 지표자료로 사용하고 있다. 하지만 설진은 진단환경에 의한 영향을 많이 받게 되어 객관적이고 정량화된 결과를 얻기 힘들며, 그로 인해 한의사의 진단에 대한 신뢰성도 낮아 널리 활용되지 못하고 있다. 이를 해결하기 위해 본 연구에서는 제한된 측정환경을 제공하는 디지털 설진 시스템을 통해 한의사로부터 황태라 진단받은 48명과 백태라 진단받은 14명의 설 영상을 획득하고, 설태의 컬러벡터값을 구하여 백태와 황태를 구분하는데 유의한 변수를 도출하였으며, 이를 이용하여 한의사의 설태 진단과 일치율이 높은 판별함수를 도출하였다. 이와같은 연구방법은 백태, 황태 뿐 아니라 회태나 흑태 또는 후태나 박태를 구분하는 데에도 유용하게 쓰일 수 있을 것이며 앞으로 한의사의 설진과정을 객관화, 과학화하는 과정에 기여할 수 있을 것이다.

• Proceedings of the Korean Society for Emotion and Sensibility Conference
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• 2001.05a
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• pp.162-168
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• 2001

성인의 정서에 따른 심혈관계 반응의 변화에 대한 연구는 많이 있으나, 아동 정서에 따른 심혈관계 반응에 대한 연구는 거의 없는 실정이다. 본 연구에서는 본 연구실에서 개발한 자극을 이용하여 유발된 정서에 따른 심혈관계 반응의 차이를 규명하고자 한다. 복합자극으로 구성된 아동용 정서유발 프로토콜을 사용하여 아동에게 다섯가지 정서(기쁨, 슬픔, 분노, 스트레스, 무료함)를 유발시키는 동안 심혈관계 반응(ECG, PPG)을 측정하였다. 실험참여 아동은 만 5세에서 9세 사이의 아동으로 모두 141명이며, 분석에는 132명 (학령전 남: 30/ 학령전 여: 33/ 학령후 남:37, 학령후 여:32)의 데이터가 활용되었다. 분석에 사용하나 심혈관계 생리반응 변수는 심박률(HR), 호흡주기 관련 심박률변화 (RSA), 심박률분산(HRV), 심박률분산의 고주파수성분 (HFHRV)과 저주파수성분 (LF HRV), 혈류량 (FPV)이었다. 이 변수들 중 심박률, R파 간 간격을 기준으로 한 심박률변산의 고주파수 성분과 저주파수 성분, 그리고 혈류량에서 정서에 따라 유의미한 차이가 나타났다. 심박률은 기쁨, 슬픔을 스트레스나 무료함과 구분할 수 있고, 분노를 다른 정서들과 구분하는 것으로 나타났다. 혈류량 역시 분노와 다른 정서들 간에 유의미한 차이를 보였다. 고주파수 성분은 무료함을 나머지 정서들과, 저주파수 성분은 슬픔, 스트레스를 무료함과 구별할 수 있었다. 정서에 따라서는, 기쁨과 분노 유발정서에서는 심박률과 혈류량이 감소하였고, 슬픔은 심박률과 저주파수성분이 감소하였으며, 스트레스는 독특하게 심박률이 감소하였다. 그리고 무료함에서는 고주파수성분과 저주파수성분은 증가하고 혈류량은 감소하는 특징적인 양상을 보였다. 결론적으로 본 연구는 심혈관계 반응을 이용하여 아동정서를 구분하는 것이 가능함을 밝혔다.공을 제외한 BH-2, BH-3호공에서의 이방성 투수량계수텐서값은 이 논문의 가정인 대수층이 이방성이고 균질하다는 가정에 일치하지 않았다. 따라서 원형좌표계에 도시하였을 때 다른 공에 비해서 비균질성이 심한 결과로 인해 이방성타원체 에서 많이 벗어남을 보였다. 이로인해 3개의 공 BH-1, BH-4, BH-5호공을 사용하여 대수층의 이방성을 분석하여 보았다. BH-1호공에서의 $T_{{\varepsilon}{\varepsilon}}$는 171.90 $m^2$/day, $T_{ηη}$는 71.0l $m^2$/day이고 주 텐서방향은 Nl5.39$^{\circ}$ E로 나타났다. BH-4호공의 $T_{{\varepsilon}{\varepsilon}}$는 268.20 $m^2$/day, $T_{ηη}$는 28.75 $m^2$/day이고 주 텐서방향은 N7.55$^{\circ}$E이며 BH-5호공에서의 $T_{{\varepsilon}{\varepsilon}}$는 168.40 $m^2$/day, $T_{ηη}$는 66.80 $m^2$/day이고 주 텐서방향은 N76.59$^{\circ}$E로 나타났다. 이처럼 연구지역에서의 각각의 공에 대한 투수량계수텐서는 서로 다르게 나타났으며 이에 따른 주 텐서방향도 서로 다름을 알 수 있다.. Targeting a 10% recycling rate for municipal waste in 2001. EPA plans to research and develop new rec

• Journal of Nutrition and Health
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• v.54 no.1
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• pp.116-128
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• 2021

Purpose: The extraction conditions for bioactive components from peanut shells, which is a byproduct of peanut processing, were optimized to enhance the total phenolic content (TPC, Y1), total flavonoid content (TFC, Y2), and 2,2-diphenyl-1-picrylhydrazyl radical scavenging activity (RSA, Y3). In addition, this study evaluated the anti-obesity effect of peanut shell extract. Methods: Optimization of ultrasonic-assisted extraction (UAE) was performed using a response surface methodology. The independent variables applied for extraction were time (X1: 5.0-55.0), temperature (X2: 26.0-94.0), and ethanol concentration (X3: 0.0%-99.5%). Quadratic regression models were derived based on the results of 17 experimental sets, and an analysis of the variance was performed to verify its accuracy and precision of the regression equations. Results: When evaluating the effects of independent variables on responses using statistically-based optimization, the independent variable with the most significant effect on the TPC, TFC, and RSA was the ethanol concentration (p = 0.0008). The optimal extraction conditions to satisfy all three responses were 35.8 minutes, 82.7℃, and 96.0% ethanol. Under these conditions, the inhibitory activities of α-glucosidase and pancreatic lipase by the extract were 86.4% and 78.5%, respectively. Conclusion: In this study, UAE showed superior extraction efficiency compared to conventional hot-water extraction in the extraction of polyphenols and bioactive materials. In addition, α-glucosidase and pancreatic lipase inhibitory effects were identified, suggesting that peanut shells can be used as effective antioxidants and anti-obesity agents in functional foods and medicines.

• Journal of the korean academy of Pediatric Dentistry
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• v.40 no.3
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• pp.177-184
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• 2013

Calcium hydroxide mixture medicaments can nearly be considered to be the ideal primary tooth filling material. However, long-term application of calcium hydroxide combinations as an intra canal medicament softens dentin. The aim of this study was to evaluate the effect of calcium hydroxide on the microhardness of root dentin of primary tooth. For the study, 60 extractedprimary incisors were divided into 3 groups (no medicament, calcium hydroxide/iodorform mixture, and calcium hydroxide/distilled water mixture). After the cleansing and shaping of canals, calcium hydroxide medicaments were applied and stored for different periods of time (1, 7, 30, 90 days). The root was horizontally sectioned into 2 mm thick specimens and the microhardness was measured using Vickers microhardness tester. The results were as follows : Root dentin microhardness of primary teeth decreased with long term exposure to calcium hydroxide medicaments according to the experimental period and showed statistically significance (p < 0.05). Root dentin microhardness of primary tooth filled with calcium hydroxide mixed with distilled water showed more decrease than filled with Vitapex and showed statistically significance (p < 0.05). Root dentin microhardness of a control group without exposure to calcium hydroxide decreased according to the experimental period and showed statistically significance (p < 0.05).

• Proceedings of the Korean Society for Emotion and Sensibility Conference
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• 2000.11a
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• pp.118-126
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• 2000

동양의학에서 인체의 주된 생리 정보는 체질과 맥진에서 얻어질 수 있다 체질은 선천적인 오장 육부 기능에 대한 정보를 제공한다. 체질에 대한 판단은 얼굴형상, 맥진, 사주 등의 방법에 의한다. 반면에 진맥은 현재의 오장육부의 건강 상태를 나타낸다. 오장육부의 생체정보는 인체경락의 전기 전도도를 측정하는 방법에 의해서도 얻어질 수 있으나 본 논문에서는 진맥에의한 방법만을 토론한다. 체질과 진맥 정보는 치병에 있어서 처방의 기간과 강도를 결정 할 수 있는 결정적인 변수이다. 이 두가지 정보 중에서 하나라도 결핍될 경우 병에 대한 효율적인 대응이 어려워진다. 그 이유는 처방의 강약 조절이 어렵고 그 결과 다른 부작용 유발가능성이 크다. 본 논문에서는 진맥이론의 일반적 전개를 위하여 음양오행 성질의 과학적인 정의를 기초로 하였다. 구체적인 맥상의 판단에는 (1) 음의 맥과 양의 맥의 절대적 크기와 상대적 비(즉 음양의 강도와 비), (2) 오행의 성질에 기초한 맥의 형상, 그리고 (3) 맥의 느낌이나 성질등 3가지 정보를 종합한 방법으로 맥상을 파악한다. 이러한 맥진기술 이론은 분류방법이 간단할 뿐만아니라 이론이 일반적이다. 그래서 한의학의 전문가는 물론이고 일반인 모두 쉽게 익혀 덜인의 건강상태를 스스로 파악하는 것이 가능하다. 진맥기 제작의 기년 이론으로서 역할을 할 수 있다. 오행이론에 기초 할 경우 맥상은 5가지 대표적인 맥으로 분류된다. 맥의 이름은 황제내경에 제시된 한의학적인 이름과 함께 맥상을 쉽게 유추 할 수 있는 실생활적인 이름을 병용하였다. 예를 들어 위장이 약할 때 나타나는 홍맥을 진빵같이 부드러운 맥으로, 폐가 나쁠 때 나오는 흩어지는 모맥을 도우너츠형 연기맥으로, 신장이 나쁠 때 나오는 단단한 석맥을 고구마형상의 돌덩어리맥으로, 간이 나쁠 때 나오는 긴장된 현맥을 팽팽한 고무줄맥으로 그리고 심장이 나쁠 때 나오는 작고 연한 구맥을 튀어오르는 물방울맥으로 명명하였다. 이외에 진맥에 의하여 인체의 한열이나 지삭 부침등의 정보가 가능하며, 이러한 정보는 고혈압이나 중풍 확률, 비만 가능성 지수, 골다공증 선행지수 그리고 심장기능 파악(불전맥이나 대맥) 등 다양한 인체 정보를 파악하는 데 응용될 수 있음을 강조한다.

• Science of Emotion and Sensibility
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• v.12 no.3
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• pp.279-288
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• 2009

The purpose of this study was to verify the impact of cognitive factors and GSR on the task performance. For this study 64 students participated. Multiple regression and repeated measures were applied to analyze the data. The result for the survey indicated that previous knowledge, physical efforts, and task difficulty had significant impacts on task performance. Particularly, task difficulty has a negative impact. This can be interpreted as someone who has high prior knowledge inputs higher physical efforts with low task difficulty perception will show high performance. On the other hand, the low arousal level of GSR in the evaluation stage is a prediction variable of task performance. This result shows that high prior knowledge and low arousal level of GSR produces high performance. However, the analysis of difference in GSR between learning and evaluation stages does not show significant difference. It suggests that physiological measure such as GSR is reliable index of cognitive load; however, it partially represents cognitive load. Other crucial factors should be added for comprehensive measures.

• Korean journal of food and cookery science
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• v.31 no.4
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• pp.395-404
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• 2015

The aims of this study were to determine the optimal mixing condition for two different amounts of Gynura procumbens powder and olive oil for the preparation of beef sausage. The experiments were designed according to the central composite design of response surface methodology, which showed 10 experimental points including two replicates of Gynura procumbens powder and olive oil. The physicochemical and mechanical characteristics as well as the sensory properties were measured, and these values were applied to the mathematical optimization models. The results of the physiochemical and mechanical analysis of each sample, including chewiness, cohesiveness, color a, color b, moisture content, salinity and heating loss showed significant differences. The sensory measurements were significantly different in color, flavor, tenderness, texture and overall quality. The optimum formulation, which was calculated using the numerical and graphical method, was determined to be 2.1 g Gynura procumbens powder and 7.06 g of olive oil.