• Title/Summary/Keyword: Difference-in-Differences(DID)

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사상체질에 따라 마음챙김 명상이 분노에 미친 영향 연구 (The Effects of Mindfulness Meditation on Anger according to Sasang Constitution)

  • 배효상;박서연;정준영;박성식
    • 사상체질의학회지
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    • 제26권2호
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    • pp.133-145
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    • 2014
  • Objectives In this study, we tried to examine that Sasang Constitutional differences affect the direction of the treatment of anger by comparing the effect of mindfulness meditation for anger scale in accordance with the difference of the constitution. Methods We analysed 105 college student's Constitution by Questionnaire for the Sasang Constitution Classification II and the effect of mindfulness meditation for anger by State-Trait Anger Expression Inventory Korean version(STAXI-K), Korean Version of the Behavioral Anger Response Questionnaire(K-BARQ). Volunteers who participated in this study were 105 people, except for person that did not properly entered the anger scale and Questionnaire for the Sasang Constitution Classification II, the subjects of analysis for State-Trait Anger Expression Inventory Scale were 45 and for the Behavioral Anger Scale were 49. Results & Conclusions The result of the effects of mindfulness meditation according to Sasang Constitution was as follows. The tendency to try to disperse and avoid the anger was increased through meditation for all subjects. The diffusion of male subjects and the avoidance of female subjects was increased. The effect of meditation on anger did not differ according to Sasang Constitution, constitutional differences did not affect the effects of meditation. The tendency of avoidance of anger was increased in Soyangin, Anger-out was decreased and the tendency of avoidance and diffusion of anger were decreased in Taeeumin through meditation.

키토산 청국장을 첨가하여 제조한 깊펠 쿠키의 품질 특성 (Quality Characteristics of Kipfel Cookie Prepared with Chitosan-Chungkukjang)

  • 이예경;김미정;이승배;김순동
    • 동아시아식생활학회지
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    • 제15권4호
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    • pp.437-443
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    • 2005
  • Quality characteristic of Kipfel cookies with 0, 20, 40 and $60\%$ of freeze dried chitosan-chungkukjang(CC), which was fermented for 24 hours at $40^{\circ}C$ with steamed soybean added with $0.25\%$ of chitosan(MW 2,025 kDa) powder and inoculated $2\%$ of Bacillus lichenifomis, were investigated Bulk density was higher in the CC cookie, but there were no difference among the CC cookies. While hardness was decreased, brittleness and springiness were increased in the higher ratio of CC, but no significant difference was observed in cohesiveness and gumminess. According to increasing the CC ratio, L$\ast$ values and hue angle were decreased from 62.69 and 96.71 to 44.41 and 69.30, respectively. While a$\ast$ values were increased from -1.94 to 4.95, and no changes were observed in b$\ast$ values. Glucosamine content was $27.34 mg\%$ in the control cookie, $40{\~}93.75 mg\%$ in the CC cookies. Antioxidant activity of the CC cookies were higher than the control. The activity of the control cookie was decreased during storage, while it was maintained in CC cookies. There were no differences in the sour, sweet and savory taste. Off-flavor did not detected in the $0{\~}40\%$ CC cookies, but the chungkukjang odor was slightly detected in the $60\%$ CC cookie. The $20{\~}40\%$ CC cookies did not affect on native odor of Kipfel cookie. Color acceptability also did not affect by addition of CC $20{\~}40\%$ but it was lower in $60\%$ CC cookie. Overall acceptability was the best in the $20\%$ CC cookie.

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경북 일부 초등학교 고학년생의 성별과 영양지식에 따른 일반적인 특성 및 식생활의 차이 (General Characteristics and Eating Styles by Gender and Nutrition Knowledge Level in Upper-Grade School Children in Gyeongbuk)

  • 김은지;양경미
    • 대한가정학회지
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    • 제49권1호
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    • pp.27-39
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    • 2011
  • The purpose of this study was to obtain the basic information needed for an effective program of nutrition education and the establishment of desirable dietary attitudes in elementary school children. The study was conducted using a self-administered questionnaire, and the participants were 281 elementary school children. The data were analyzed in terms of the participants' gender and level of nutritional knowledge, and group differences were assessed using chi-square and Duncan's multiple range tests. The results were as following: Male and female students did not differ in nutritional knowledge. In terms of health-related life style, there were significant differences according to gender and nutrition knowledge. In terms of dietary habits, there were significant differences in the regularity of meal times according to gender and nutrition knowledge. With regard to food preferences, there was a significant gender difference in taste preferences with the male students preferring a salty taste more than the female students.

기공수련이 체중조절에 미치는 영향에 대한 연구 -일부지역 소재 주민들을 중심으로- (A study of the effect that the practice of Qi-Gong has on controlling one's body weight)

  • 최우정;홍성균
    • 한국방사선학회논문지
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    • 제1권2호
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    • pp.55-69
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    • 2007
  • A Study about the Effect of the Kwang-Dong Qi-Gong Therapy in Bariatrics. The purpose of this study is to find out what effects the practice of Qi-Gong shows in controlling obese that is one of the main causes of adult disease. In this study, the researchers chose some overweight or obese subjects over 17 years and divided them into two groups, and gave 4 weeks of twelve treatments to one group with Kwang-Dong Qi-Gong therapy developed by Hong Seong-Gyun in Kwang-Dong, and did not give any treatment to another group. And the effects were evaluated by comparative analysis. Before and after the treatments, the researchers measured the height, weight, body fat, BMI(Body Mass Index), hip size, etc. of two groups of them. And the health condition and eating habits of each persons of the two groups were examined before the experiment, and the difference of eating habits between the two groups was investigated in the course of the experiment, and the effects of the therapy that the treated group felt is investigated with an questionnaire sheet after the experiment. The following shows the result of the comparative analysis about the experiment 1. The result of the experiment about the effect of Kwang-Dong Qi-Gong therapy treated to control overweight or obese shows that : a) The height, body weight, BMI, body fat index, chest size did not make any statistically meaningful difference. b) The measurements of hip, waist, forearms, thighs, calves, and ankles made meaningful differences. 2. In the course of the experiment, the eating habits of the two groups did not make any significant difference except the frequency of dining together. 3. The effect of Kwang-Dong Qi-Gong therapy for the group that was given 12 treatments shows that : a) Regarding the change of their defecation, 81% of the subjects in the treated group said 'Yes' and 19% said 'No', that is most of subjects answered positively. b) Before the experiment, three subjects of the treated group had been taking medicine, but after the practice of Kwang-Dong Qi-Gong therapy, they appeared to stop taking medicine. c) 87% of subjects in the treated group said that they 'feel well' after he practice, 13% said that they 'did not feel well', that is most of subjects were satisfied with Kwang-Dong Qi-Gong therapy. d) 81% of subjects in the treated group replied that they 'feel peaceful in mind' after the practice, 19% replied that they 'did not feel peaceful in mind.'

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식빵의 굳기 측정을 위한 측정 조건에 관한 연구 (A study on the measurement conditions for measuring the toughness of bread)

  • 신선화;최원석
    • 한국식품과학회지
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    • 제54권2호
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    • pp.247-250
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    • 2022
  • 노화 등으로 인한 식빵의 굳기(toughness) 정도를 측정하고자 Miller/Hoseney Toughness 장치를 이용하여 여러 측정조건(이동속도 및 침투율 변화)에서 절단력 최대값을 측정하여 분석하였다. 식빵 겉껍질에서는 이동속도가 증가함에 따라 절단력 최대값이 유의적으로 증가하였으며, 시료들 사이에서의 유의차는 일부 측정조건에서 다르게 나타났다. 식빵 내부에서의 측정값은 동일 침투율에서는 이동속도가 증가함에 따라 대부분의 시료에서 절단력 최대값이 유의적으로 증가하였으며, 시료들 사이에서의 유의차는 침투율에 상관없이 이동속도가 달라져도 변화하지 않았다. 결론적으로 본 실험 방법으로 식빵 내부의 굳기를 측정할 경우 측정조건변화에 의해 절단력 최대값은 달라지나, 시료간 유의차는 변화하지 않아, 시료간 유의차를 판단하는 경우 본 실험 범위내에서 매우 편리하고 신뢰도가 높은 실험으로 사료된다.

High School Students' Problem Solving Approaches on the Concept of Stoichiometry

  • Park, Hyun-Ju
    • 한국과학교육학회지
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    • 제25권1호
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    • pp.1-15
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    • 2005
  • This study examined two students' problem solving approaches: the similarities and the differences in their problem solving approaches, and the general problem solving strategies (heuristics) the students employed were discussed. The two students represent differences not only in terms of grades earned, but also in terms of participation, motivation, attention to detail, and approaches to answering questions and problem solving. Three separate problems were selected for this study: A stoichiometry problem; a fruit salad problem; and a limiting reactant problem. Each student was asked individually on three separate occasions to contribute to this study. There are more similarities in the students' problem solving strategies than there are differences. Both students were able to correctly solve the stoichiometry and the fruit salad problems, and were unable to correctly solve the limiting reactant problem. They recognized that an algorithm could be used for both chemistry problems(a stoichiometry problem & a limiting reactant problem). Both students were unable to correctly solve the limiting reactant problem and to demonstrate a clear understanding of the Law of Conservation of Mass. Nor did they show an ability to apply it in solving the problem. However, there was a difference in each one's ability to extend what had been learned/practiced/quizzed in class, to a related but different problem situation.

실손형 민간의료보험 가입의 영향요인과 실손형 민간의료보험이 의료이용에 미치는 영향에서 성별 차이: 한국의료패널(2010-2016) (Gender Differences in Factors Affecting Purchase of Indemnity Private Health Insurance and Impact of Indemnity Private Health Insurance on Healthcare Use: Korea Health Panel Survey Data from 2010 to 2016)

  • 유창훈;권영대
    • 한국콘텐츠학회논문지
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    • 제20권3호
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    • pp.92-105
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    • 2020
  • 이 연구에서는 실손형 민간의료보험 가입의 영향요인과 실손형 민간의료보험이 외래 및 입원 의료이용에 미치는 영향에서 성별 차이를 파악하고자 하였다. 한국의료패널의 2010년부터 2016년까지 조사 자료를 패널자료로 구성하여 로짓모형과 회귀모형으로 분석하였다. 실손형 민간의료보험의 가입에서 남성은 여성보다 가입확률이 낮았고, 여성의 경우 미충족 의료 여부, 주관적 건강상태에 따라 가입확률의 차이가 있었고, 남성의 경우 결혼상태, 거주지에 따라 차이가 있었다. 실손형 민간의료보험은 여성군에서 외래 방문 당 진료비에 영향을 미치지 않았으나 남성군에서는 외래 방문 당 진료비를 증가시키는 것으로 분석되었다. 또한, 여성군에서 실손형 민간의료보험이 입원 당 진료비를 유의하게 증가시켰으나 남성군의 입원 당 진료비에는 영향을 주지 않았다. 실손형 민간의료보험의 가입과 실손형 민간의료보험이 의료이용에 미치는 영향에서 성별 차이가 있음을 확인하였으며, 이는 실손형 민간의료보험 관련 연구와 제도 운용에서 성별 차이를 고려할 필요가 있음을 시사한다.

치과의원 내원환자의 치주관리 실태에 관한 조사 (A study on the periodontal care of dental clinic patients)

  • 고은정;이가연
    • 한국치위생학회지
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    • 제9권2호
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    • pp.25-43
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    • 2009
  • The purpose of this study was to examine the periodontal care of dental clinic patients. The subjects in this study were 213 patients who visited four different dental clinics in the region of Geoje. After a survey was conducted, the following findings were given: 1. In regard to the prevention of periodontal diseases, 52.1 percent of the patients investigated received treatment at a dental clinic when their gums were swollen or bleeding, and the way they responded to their swollen or bleeding gums was significantly different according to age, occupation(p<.01) and academic credential(p<.001). 31.0 percent got their teeth scaled to take care of their gums, and how to take care of the gums differed significantly with age, occupation, academic background(p<.001) and monthly income(p<.01). As to yearly preventive treatment frequency for periodontal diseases, 22.5 percent received treatment to prevent any possible periodontal diseases once a year, and age, educational background(p<.01) and occupation(p<.05) made a significant difference to that. By occupation, the company employees received more preventive treatment. As many as 66.7 percent intended to receive education on the prevention of periodontal diseases if there would be any chance, and gender and age(p<.001) made a significant differences to that. 2. As for oral health care habits, 52.1 percent brushed their teeth in a mixed way, up and down and right and left, and the women did that up and down more than the men. Those who were in their 30s did toothbrushing in the mixed way the most, and gender(p<.05), age(p<.05) and academic credential(p<.001) made a significant difference to that. Concerning daily mean toothbrushing frequency, 43.7 percent did that three times a day, and the women who did that three times outnumbered the men who did. The daily mean toothbrushing frequency varied significantly with gender(p<.01). By occupation and education, the professionals and better educated patients were significantly different from the others in that regard(p<.01). As to the use of an interdental brush, 57.3 percent had ever used it, and those who were better educated, who had a larger monthly income(p<01) and who were professionals(p<.001) were significantly different from their counterparts in that aspect. As to scaling experience, as many as 68.5 percent had ever had their teeth scaled, and those who were in their 30s had done that the most. Age made a significant difference to that(p<.01), and the professionals, larger income earners and better educated patients were significantly different from their counterparts in that regard(p<.001). The findings of the study justified the necessity and importance of periodontal care, and the prevention of periodontal diseases, regular dental checkup and the development of oral health education programs were required.

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읽기매체의 종류에 따른 유아의 이야기 이해도 차이 : 종이책과 전자책 (The Differences in Children's Story Comprehension According to the Types of Reading Media : Paperback Books vs. Electronic Books)

  • 김태연;이순형
    • 아동학회지
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    • 제35권4호
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    • pp.249-262
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    • 2014
  • This study investigated differences in children's story comprehension as they related to the types of reading media. The participants comprised 62 four-years-olds from two child-care centers located in a middle-income region of Seoul and Gyeonggi Province. In order to control the experience effect, newly developed stories published into two formats of reading media (paperback books and electronic books) were provided to the participants. The results indicated that there were no significant differences in children's story comprehension depending on the types of reading media. Paperback book readers and electronic book readers did not show any significant difference in story comprehension, which consists of recall, recognition and reasoning tasks. As literature pertaining to children's usage of electronic books is limited, the present study offers guidelines for the development of children's reading media and may serve as a useful resource for future studies.

방위산업 혁신에 대한 정부지원 효과에 관한 연구: 우리나라 방산기업을 중심으로 (A Study on the Effect of Government Support on the Innovation of Defense Industry: Evidence from Korean firms)

  • 공희정;봉강호;박재민
    • 디지털융복합연구
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    • 제18권1호
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    • pp.1-10
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    • 2020
  • 본 연구에서는 산업혁신 관점에서 정부지원이 이러한 방위산업 성과에 미치는 영향을 살펴보기 위하여 국내 방산기업 자료를 바탕으로 이중차분법(DID)을 활용한 실증분석을 수행하였다. 분석 결과, 방산기업의 매출 및 자산규모는 정부지원 수혜만으로 증대 또는 감소하지 않는 것으로 나타났다. 또한 총매출 대비 당기순이익 및 총자산 대비 당기 순이익에 대한 정부지원은 이들을 크게 개선시킨 것으로 나타났으나, 그 효과가 단기적으로만 나타나는 것으로 관측되었다. 본 연구는 산업 간 차이 존재 유무를 규명하는 데 초점을 둔 기존 연구들과 달리, 방위산업 내에서 실증적으로 분석하는 최초의 연구라는 점에서 차별성이 있다. 특히 아직 알려진 바가 거의 없는 독특한 특성을 가진 산업에서의 정부지원 효과를 살펴보았다는 점에서 이론적으로도 의의가 있다.