• 대한의생명과학회지
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• 제23권2호
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• pp.73-79
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• 2017

Pulse pressure is an independent risk factor for cardiovascular disease. The aim of the present study was to assess the association between pulse pressure and metabolic syndrome in Korean men. The study subjects were 8,439 adults aged 40 to 64 years, who underwent health screening examination from January 2012 to December 2014 at the Health Promotion Center of one hospital in Gyeonggi-do for general health check-up. They include the metabolic syndrome absent group (Absent, n=3,078), the pre-metabolic syndrome group (Pre-MetS, n=4,242) and the metabolic syndrome group (MetS, n=1,119). Progressive increase in pulse pressure was demonstrated for increasing components of the metabolic syndrome (P<0.001). The pulse pressure according to the degree of the metabolic syndrome was higher in the pre-MetS and MetS groups compared to the Absent group (P<0.001). Systolic and diastolic blood pressure, total cholesterol, triglyceride, fasting glucose, and abdominal obesity positively correlated with pulse pressure (P<0.001).

• 대한건축학회논문집:계획계
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• 제36권3호
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• pp.91-102
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• 2020

This study examined the apartment sale in lots system from 1960s to 1970s in Seoul from a historical perspective, with the focus on the concept and changes of pre-sale in lots system. By tracing back historical context and application of the system in that period through the analysis of the advertisements for apartment sale, we found out the hidden side of the apartment pre-sale in lots system from the public's point of view, and its impact and meaning on the formation of our current residential culture. In the 1960s and 1970s, the apartment sale in lots system based on the pre-sale in lots system formed strong seller's market and it has been the main reason for imposing the wrong residential awareness that led the public to recognize housing as a means of property growth. Even now, the current apartment sale in lots system remains to be a supplier-oriented one, and lots of people tend to regard housing as investment method. That is, this mechanism is not only still working but one of the fundamental causes of impoverishing our residential culture. It is necessary to reconsider the pre-sale in lots system and the apartment sale in lots system in relation to the public of housing.

• 한국산학기술학회논문지
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• 제18권11호
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• pp.208-217
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• 2017

본 연구는 간호대학생의 결혼의식 및 출산의식, 예비부모역할 정도를 알아보고, 결혼의식과 출산의식이 예비부모역할에 미치는 영향을 규명하기 위한 서술적 조사연구이다. 대상자는 B시 소재 4년제 대학의 간호대학생 202명이며, 자료수집기간은 2015년 5월 11일에서 15일까지였다. 수집된 자료는 t-test, ANOVA, Scheffe's test, Pearson's correlation coefficients와 multiple regression으로 분석하였다. 연구 결과, 대상자의 예비부모역할 정도는 경제상태, 이상자녀 수, 희망자녀 수에 따라 통계적으로 유의한 차이가 있었다. 간호대학생들은 배타적 결혼관이 높았으며, 출산의식과 예비부모역할 정도은 중간보다 높게 나타났다. 예비부모역할은 낭만적 결혼관, 소극적 결혼관과는 유의한 음의 상관관계가 있었다. 출산의식과는 유의한 양의 상관관계가 있었는데, 하위요인 중 저출산 원인 및 심각성 인식과 국가 기업의 출산지원에 대한 태도와 양의 상관관계가 있었고 각각 통계적으로 유의하였다. 예비부모역할을 설명하는 유의한 변수는 국가 기업의 출산지원에 대한 태도, 희망자녀수, 경제적 수준, 소극적 결혼관으로 나타났다. 이 중 국가 기업의 출산지원에 대한 태도가 가장 큰 영향을 미치는 변수이었으며, 전체 설명력은 26.9%이었다. 따라서 간호대학생의 예비부모역할의 인식을 높이기 위해서는 경제지원과 보육시설 지원 등 국가와 기업의 출산지원을 높이는 정책과 예비부모교육 프로그램을 개발하고 활용하는 방안이 필요하다.

• 한국초등과학교육학회지:초등과학교육
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• 제28권4호
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• pp.373-381
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• 2009

This study investigated pre-service elementary school teacher's perception of science curriculum use in Korea and Japan. Ninety four pre-service elementary teachers in Korea and fifty three pre-service elementary teachers in Japan are participated in this study. As the result, four patterns were revealed. First, science isn't perceived as an important or interesting subject by the pre-service elementary teachers in both countries. Second, the perception of Korean pre-service teachers about the objectives of science subject is relatively negative. Third, in the case of Korea, the perception about the effectiveness of science subject content and level, and the amount of learning is shown to be more negative than those of Japan. Finally, in both countries, the science majors and the non-science majors have negative perceptions about the inclusion of the perspectives and methods of assessment and the preparation of teaching and learning plan in curriculum.

• 대한지구과학교육학회지
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• 제8권3호
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• pp.378-386
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• 2015

This study is to find out that pre-service elementary teacher's the effects of a ecology mentor club activities to the environmental sensitivity and the effects on the environment friendly attitude of elementary school students. This study has been aimed at 25 students of 5th grade in B metropolitan city S elementary school in 2015, B educational University of elementary pre-service teachers 10 people, Elementary School Teachers10 people to apply a ecology club mentor activities to investigate a comment participated in environmental mentor club activities of elementary pre-service teachers and the environmental sensitivity and the effects on the environment friendly attitude of elementary school students. Procedures for this research was the topic for setting ecology club mentor activities of elementary school students, pre-service elementary school teachers receive consultation from field teachers and guide to ecology club mentor activities of elementary school students. Before the ecology club mentor activities, pre-test environmental sensitivity and the environment-friendly attitude of were carried out. After the experiment, post-test of environmental sensitivity and environmental friendly attitude check was carried out. Also, investigate a comment of pre-service elementary teachers participate and guide to ecology club mentor activities of elementary school students. After the experiment results are as follows. First, the ecology club mentor activities of pre-service elementary school teachers are effective to cultivate environmental sensitivity of the elementary school students. Second, the ecology club mentor activities of pre-service elementary school teachers are effective to cultivate eco-friendly attitude of the elementary school students. Third, after ecology club mentor activities of elementary school students, pre-service elementary school teachers now have a very good feeling. Based on these results, suggestions for further research are as follows. First, the variety of ecological club programs target to elementary school students are needed. Second, there is a need for continuing research on the ecology club activities.

• 패션비즈니스
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• 제11권2호
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• pp.92-101
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• 2007

This research was carried out following the preceding research on natural cellulose fabrics dyed with extract of fresh african marigold petals. Dyeability on fabrics was tested by dyeing with wool and silk which are natural protein fibers. Dyeing tests were carried out under different pH of the dye solution and mordants, examining the changes in the surface color, K/S value, and maximum absorption wavelength. The probability of improving dyeability was investigated by pre-mordanting with pre-treated chitosan. Wool fabrics showed color tone of medium or less saturation and brightness, in dark yellow color series. An orange color of high saturation was only obtained by tin mordanting. Wool showed higher K/S value than cellulose fibers. In summary, marigold dye has more affinity for protein fibers. It showed better dye effect in wool than silk. The chitosan pre-treatment and pre-mordanting lowered the K/S value of wool, which showed that chitosan pre-treatment does not improve dye uptake. However, different from the dyeing carried out by pre-mordanting without pre-treatment with chitosan, more diversified colors could be obtained by mordants. Therefore, for the dyeing natural protein fibers with marigold extract, post-mordanting does not require chitosan pre-treatment. However, pre-mordanting with chitosan pre-treatment could implement diverse colors. Considering its dyeing behaviors which are similar in both natural cellulose and protein fibers, african marigold extracts can be evaluated as a stable and highly practical dye.

• 한국산학기술학회논문지
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• 제20권7호
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• pp.332-340
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• 2019

본 연구의 목적은 예비유아교사의 사회적지지, 대학생활 적응과 교사 효능감의 수준과 관계를 분석하고 사회적지지 및 대학생활 적응이 교사 효능감에 미치는 영향에 대해 알아보고자 한다. 이를 위하여 본 연구에서는 전라북도와 충청북도에 소재하고 있는 3년제 유아교육과에 재학 중인 예비 유아교사 394명을 대상으로 설문 조사를 하였다. 본 연구에 사용 된 연구도구는 사회적지지 척도, 대학생활 적응 척도, 교사효능감 척도(STEBI)를 예비유아교사에게 맞게 수정, 보완하여 사용하였다. 본 연구의 결과를 분석하기 위하여 SPSS 22.0 프로그램을 이용하였으며, 빈도와 백분율, 평균과 표준편차, Pearson의 적률상관관계, 중다회귀분석을 통해 자료를 분석하였다. 연구결과 첫째, 예비유아교사의 사회적지지 및 대학생활 적응, 교사효능감은 모두 3점 이상으로 전체적으로 높게 나타났다. 둘째, 예비유아교사의 사회적지지 및 대학생활 적응, 교사효능감 간에는 정적인 상관관계가 있는 것으로 나타났다. 마지막으로 예비유아교사의 사회적지지 및 대학생활 적응이 교사효능감에 미치는 영향을 살펴 본 결과 모두 유의한 영향을 미치는 것으로 나타났다.

• 한국멀티미디어학회논문지
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• 제25권4호
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• pp.649-659
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• 2022

The most important factor in pre-school children's psychological perception is ease of learning, and the closest measure is "natural" interaction. This study aims to explore the potential of tangible user interfaces (TUI) for AR collaboration for children's cognitive development. The conceptual model is constructed by analyzing physical interaction, spatial perception and social collaboration on the usability of TUI, to explore the role of TUI in pre-school children's cognition. In the empirical study, children aged 3-6 were taken as research objects. The experimental tool is "Plugo" education application. Parents answered questionnaires after observing their children's use. Research shows that physical interaction are the most critical factor in TUI. TUI is beneficial to the cultivation of spatial ability. The results are as follows: 1. Cronbach's Alpha and KMO were 0.921 and 0.965, which were significant and passed the reliability and validity test. 2. Through confirmatory factor analysis (model fit index, combinatorial validity), we found that physical interaction were closely related to usability. 3. The path analysis of the relationship proves that usability has a significant impact on the cultivation of pre-school children's spatial ability.

• 한국보육지원학회지
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• 제12권6호
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• pp.227-248
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• 2016

The purpose of this study was to investigate the contents of pre-service early childhood teacher's practicum experience in kindergartens and child care centers through the analysis of practice teaching journals. The subjects of this study were a total 52 practice teaching journals of 26 pre-service early childhood teachers who completed their practicum in kindergartens and child care centers. This study analyzed the type of teaching practice management, the type of activities, and the contents of journal writings. The findings are as follows; First, pre-service teachers experienced a similar ratio of the type of teaching practice management in both types of teaching practice. Second, pre-service teachers performed more group activities in practicum in kindergartens, but more choice activities in practicum in child care centers. Third, the journal writing contents of pre-service teachers in both types of teaching practice mainly addressed the operating of educational and child care activities, and the execution of observing young children. But some categories of teacher's competency were hardly addressed. The results of this study could be used as basic data for designing early childhood practicum programs.

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2008년도 춘계학술대회 논문집
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• pp.487-490
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• 2008

Temperature programmed oxidation (TPO) is used to characterize coke species deposited on commercial nickel catalyst, C11-PR during propane pre-reforming. Propane pre-reforming performed under various condition, S/C from 1.5 to 2.5 and temperature from $350^{\circ}C$ to $450^{\circ}C$. There are three kinds of coke species detected by TPO: (i) reactive coke, (ii) coke deposited on metal site and (iii) coke deposited on acid support. Coke deposited on metal and support are minimized although reactive coke is generated at temperature of $400^{\circ}C$ and S/C of 2.0. Reactive coke is expected to remove easily below temperature of $200^{\circ}C$. Therefore, optimized pre-reforming condition for propane is $400^{\circ}C$ and S/C of 2.0.