• Journal of Nutrition and Health
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• 제7권3호
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• pp.15-26
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• 1974

Through the questionaire inquiry from April 1st to 10th, 1974 with 393 students in Woonho, Saekwang junior and senior highschool and Daisung, Ilshin girls' junior and senior highschool in Chungju, Choong Cheong Buk Do, I surveyed the general circumstances of students and their unbalanced diet on total 199 foods and causes of the unbalanced diet and regard the 21 boys and 29 girls who don't like to eat more than 30 foods from the given 47 protein-foods which are needed by students who are now in the stage of growth. This study is concerned with their circumstances and the causes of their ill habit of eating. 1) As to their distribution of age, 14 and 18 year old boys were six (28.5%), 11 and 13 year old girls were eleven (38.1%). In the survey on their height, 6 boys (28.5) were from 146 cm to 150 cm and 11 girls (38.1%) were from 146 cm to 150 cm. On the weight, 7 boys were from 36 kg to 40 kg(33.7%), 10 girls were from 36 kg to 40 kg (34.0%). We can see that ill habiters of eating were more weaker than other students from this data. 2) In the survey of educational level of their housewive it was found that number of graduates of the primary school is thirty (60.0%). So we can derive the fact that they don't make any variety in their daily table for their family. 3) As to their living standard, 19 boys (90.4%) and 27 girls (93.3%) belong to the middle class, low and high class were a little. This indicates the general living standard if Korea, because in common sence we regard the riches are the more ill habiters of eating. 4) 8 boys (36.8%) and 8 girls (26.8%) were the first children in their homes. This indicates the fact that housewive happen to make the first child as the ill habiter of eating because their lack of experience to give various food for their children. As to the survey on their infant nutriments, 41 students (80.2%) were fed by mother's milk. 5) Upon the causes of the unbalanced diet on a certain food, 34 boys (82.7%) and 45 girls (64.6%) were because of appearing to that food, 10 boys (40.8%) and 18 girls (61.5%) were because of the characteristic fragrance, 11 boys (52.4%) and 17 girls (58.1%) were because they have never eated that food till now, 34 boys (19.3%) and 5 girls (17.0%) were because of the bad appearance of the food. So housewive should study various ways of cooking daily meals at home and try to give their children who are in the stage of growth to be able to eat wider kinds of foods for the improvement of health.

• 한국학교ㆍ지역보건교육학회지
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• 제1권2호
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• pp.87-104
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• 2000

The purpose of this study was to obtain the basic data as a improvement method through the fact-revealing concerning the drinking water management of school and utilization of student. The problems of the research are as follows: First, to investigate status of management of drinking water by area and school. Second, to investigate student's utilization of drinking water by area and school. 1,400 students was selected at 45 elementary and middle-high schools located in Kang-won province, and this study was constituted of two questionnaires(for school's questionnaire and student's questionnaire). The results was analyse through the frequency analysis, $x^2$-test on the basis of the above research problem by SPSS program. The findings of this research are as follows; 1) The Management of School Drinking Water First, the source of school drinking water was mostly piped water. Inspection of water quality has been fulfilled under four times a year, in the other hands, from the result inspection, the schools which was given inadequate determination was 22.2%. Second, reservoir cleaning and hygiene inspection failed far short of the regulations. Especially, reservoir cleaning was managed by exterior consignment industry not low-level officials. Third, school water drinking was the most supplied through the type of water purifier. Water purifier has been distributed to city-located and middle-high school highly, factually the water from water purifier was served with water cup. Fourth, the selection standard of water drinking manager showed slightly differently by school, accordingly there need to develope integrated system with the respective to its effective systematic management. Fifth, water cup was mostly treated by only water clear, which is to vindicate the problems concerning hygiene management. 2) Utilization of school student on Drinking Water First, Disbelief on drinking water of school student was very high. Especially, proportion of middle-high school student's disbelief of drinking water was higher than elementary school student, also girls higher than boys. Many of student have heard to don't drink water from around people. And there were showed meaningful differences by area and school. Second, It was showed many student recognize had to utilize water purifier, boiled water. However, they have still drunken the tap water or portable water from their home. Third, Many of student showed negative response with the respective to the management conditions of drinking water in classroom, There were showed meaningful differences by area and school. From the fact-revealing of water cup management, Students mostly answered to 'only water clear' and the answer of 'None use' or 'With personal cup' was higher. Fourth, In bad experience of Drinking Water, student mostly answered to 'occasionally' and there were showed meaningful differences by school. student's disease experience with school drinking water was few and there were showed meaningful differences by area and gender.

• 대한화학회지
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• 제54권6호
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• pp.781-786
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• 2010

이 연구는 중학교 1학년 과학과 지필평가 문항 중 물질 분야 문항에 나타난 정보제시의 오류와 오류 유형별 빈도수를 조사 분석하였다. 중학교 1학년 과학과 물질 분야 문항에서 조사된 정보 제시 오류 유형은 불충분한 정보, 불필요한 정보, 잘못된 정보, 교육과정 내용을 초월한 정보, 불명확한 정보 등의 다섯 가지로 나타났다. 분석한 167개의 문항 중 81개의 문항(48.50%)에서 정보 제시 오류가 있는 것으로 조사 되었다. 지필평가 문항의 정보 제시 오류로 인하여 학습자의 과학 학습에 대한 부정적인 관점이 발생할 수 있기 때문에 교사가 문항 개발할 때 세심한 검토가 필요하다.

• 대한수학회논문집
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• 제31권3호
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• pp.637-645
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• 2016

For a polygon P, we consider the centroid $G_0$ of the vertices of P, the centroid $G_1$ of the edges of P and the centroid $G_2$ of the interior of P, respectively. When P is a triangle, the centroid $G_0$ always coincides with the centroid $G_2$. For the centroid $G_1$ of a triangle, it was proved that the centroid $G_1$ of a triangle coincides with the centroid $G_2$ of the triangle if and only if the triangle is equilateral. In this paper, we study the relationships between the centroids $G_0$, $G_1$ and $G_2$ of a quadrangle P. As a result, we show that parallelograms are the only quadrangles which satisfy either $G_0=G_1$ or $G_0=G_2$. Furthermore, we establish a characterization theorem for convex quadrangles satisfying $G_1=G_2$, and give some examples (convex or concave) which are not parallelograms but satisfy $G_1=G_2$.

• 한국식생활문화학회지
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• 제14권1호
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• pp.29-42
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• 1999

This study was performed with 482 subjects(278 boys and 204 girls in Seoul and Kyunggido area) to find out the attitude and eating behaviors about Kimchi on Korean young generation. General characteristics about subject and attitude and eating behavior were surveyed by self-developed questionnaires. 85.9% of the subjects were nuclear family type and 49.9% of respondent's mother had full-time job and 96.1% of subjects were middle or upper economic status. The preference for Kimchi, 60.4% of respondents answered that they liked Kimchi. According to grade, the rate of preference about Kimchi was significantly different, higher grade students were found higher preference on Kimchi : 64.4% of middle and 70.4% of high school students liked Kimchi. The eating patterns of Kimchi, up to 60% of respondents answered they ate Kimchi in every meal time, which suggested that it was still an important side dish in Korean meal among teenagers. The eating behaviors on Kimchi, $85{\sim}90%$ of respondents answered that they preferred Kimchi in meal time. Baechu Kimchi(chinese cabbage Kimchi) and Gakdugi(radish cube Kimchi) was highly preferred. And their preference of food which made from Kimchi (such as Kimchi fried rice, Kimchi stew, Kimchi pancake) was highly evaluated. 65.6% of residents pointed out that 'Kimchi is very nutritious food'. The respondent's structure of value on Kimchi were not significantly difference between sex and age. But it was significantly difference(p<0.01) between the groups with preference and familiarity on Kimchi. The group had higher preference and familiarity on Kimchi agreed to the positive values about Kimchi. These result suggested that various kinds of Kimchi should be developed for young generation to meet their taste and also continuous nutrition education about traditional food especially Kimchi should be promoted at home and school.

• 한국가정과교육학회지
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• 제33권1호
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• pp.63-79
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• 2021

본 연구는 2007~2015 국민건강영양조사 자료를 이용하여 중학생(만 12~14세, 남녀 2,543명)의 가당음료 섭취량 변화 추이를 파악하고 가당음료 섭취 수준에 따른 영양상태를 파악하여 청소년을 위한 식생활교육의 기초자료로 제공하고자 실시하였다. 연도별 음료 섭취량의 변화 추이, 전체 기간을 통합하여 가당음료 섭취 수준에 따른 영양소 섭취량, 영양소 섭취 적정도 및 영양불량의 차이를 다중회귀분석이나 𝛘²-test로 검증하였다. 가공 과정에 당류를 넣는 탄산음료(콜라, 사이다, 기타 탄산음료 포함), 스포츠음료, 카페인음료(커피, 에너지음료, 홍차, 코코아류)를 합하여 가당음료로 분류하였다. 24시간 회상법으로 1일간 실시한 1일 가당음료(sugar-sweetened beverage, SSB) 섭취량에 따라 대상자를 가당음료 1군(SSB 1, 가당음료 섭취량 0 g/d), 가당음료 2군(SSB 2, 0 g/d < 가당음료 섭취량 < 50 백분위수), 가당음료 3군(SSB 3, 가당음료 섭취량 ≥ 50 백분위수)으로 3구분하였다. 연구 결과, 1일 가당음료 섭취량은 남자 76.1±6.2 g/d, 여자 59.5±4.7 g/d으로 남자가 여자보다 많았다. 1일 가당음료 섭취량 분포는 섭취자만 대상으로 했을 때 남녀에서 10 백분위수가 7.3~9.0 g/d, 99 백분위수가 1,052~1,078 g/d으로 나타나 차이가 컸다. 음료 종류별 섭취량은 남녀 모두 탄산음료 섭취량이 가장 많았다. 연도에 따라서 남자(p=0.0004)와 여자(p=0.0038)의 가당음료 섭취량이 증가하는 추세이었다. 2007년 대비 2015년의 가당음료 섭취량 증가폭은 남자는 2.5배, 여자는 1.5배 증가하여 가당음료 섭취량이 빠르게 증가하고 있었다. 가당음료 섭취 수준에 따라 남녀에서 가당음료 3군으로 갈수록 에너지, 철 섭취량의 섭취기준에 의한 비율은 유의적으로 증가하였으나, 칼슘, 비타민 C 섭취량의 섭취기준에 대한 비율은 유의적으로 감소하였다. 그리고 가당음료 1군~가당음료 3군에서 1일 칼슘 섭취량의 권장섭취량에 대한 비율은 남자 47.7~54.8%, 여자 50.5~56.4%로 매우 낮았으며, 1일 나트륨 섭취량은 충분섭취량에 대해 남자 276.9~295.5%, 여자 231.0~257.1% 수준으로 과다하였고 나머지 영양소는 섭취기준에 근접하거나 이상으로 섭취하고 있어 양호하였다. 영양섭취부족자 비율은 남녀에서 모두 가당음료 섭취 수준에 따른 차이가 없었으며, 가당음료 1군~가당음료 3군에서 남녀 전체에 대해 10% 정도이었다. 에너지/지방과잉섭취자 비율은 남자(p=0.0091)와 여자(p<0.0001)에서 모두 가당음료 3군으로 갈수록 유의적으로 증가하였다. 가당음료 섭취 수준에 따라 남녀에서 나트륨 목표섭취량 이상 섭취자 비율은 차이가 없었으나 78.8~93.1%로 매우 높았다. 칼슘부족섭취자 비율은 남녀에서 86.8~94.9%로 높았다. 이상에서 2007~2015의 9년치 국민건강영양조사로 분석했을 때 만 12~14세 중학생 남녀에서 가당음료 섭취량이 연도별로 증가하는 추세이었으며, 가당음료 섭취 수준이 높을수록 에너지, 철 섭취량의 섭취기준에 의한 비율이 증가하였고 칼슘, 비타민 C 섭취량의 섭취기준에 대한 비율이 감소하였고 에너지/지방과잉섭취자 비율이 높아졌다. 그리고 전체 대상자에서 칼슘 섭취가 매우 부족하였으며 나트륨 섭취가 과다하였다. 따라서 중학생의 영양상태 향상을 위해 가당음료 섭취를 줄이고 수분은 순수한 물로 마시도록 하며 칼슘 섭취를 위해 우유 마시기를 생활화하고 덜 짜게 먹도록 노력할 필요가 있으며 이를 위한 실천과 식생활교육 및 제도적 지원이 강화되어야 할 것으로 생각된다.

• 한국과학교육학회지
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• 제30권1호
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• pp.68-79
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• 2010

이 연구에서는 중학생의 과학 교실 학습 환경에 대한 인식을 알아보고, 남학생과 여학생, 교실 학습 환경에 대한 선호도가 높은 집단과 낮은 집단의 인식이 어떤 차이를 나타내는지를 조사하였다. 서울시에 소재한 7개 중학교의 3학년 14학급 587명(남학생 264명, 여학생은 323명)을 연구 대상으로 하였으며, 교실 학습 환경 설문 도구는 What Is Happening In this Class (WIHIC)을 사용하였다. 7개 항목 중 학생들 간의 단결, 과제 지향, 협동성, 평등성 항목에서는 긍정적인 인식을 나타내었으나, 수업 참여, 탐구 활동, 교사 지원 항목에 대한 인식은 다소 부정적이었다. 성차에 대한 과학 교실 학습 환경 인식을 보면 전체적인 결과에서는 차이가 나지 않았으나, 항목별로는 학생들 간의 단결과 협동성 두 항목에서 여학생들이 평균 점수가 유의미하게 높게 나타났다. 교실 학습 환경에 대한 선호가 낮은 집단에서는 교사 지원 항목이 과제 지향, 수업 참여, 탐구 활동 항목과 모두 유의미한 상관을 나타내었고 수업 참여-과제 지향-탐구 활동 항목들이 서로 높은 상관을 나타내었으나, 상위 집단에서는 교사 지원과 평등성 항목만 유의미한 상관을 나타내었다.

• Journal of Nutrition and Health
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• 제39권1호
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• pp.50-57
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• 2006

The aim of this study was to evaluate the food and nutrient intakes in 5th to 8th grade school boys and girls. A total of 1,333 students were recruited from 1 elementary and 1 middle school, both located in Seoul. The data on food and nutrients intake were collected by 3-day food record. The food intake was calculated as the percentage of total energy intake according to 21 food subgroups. The consumption of noodles, and meat's products (including ham and sausage) groups were higher in 7th and 8th grade than 5th and 6th grade. On the other hand consumption of vegetables and milk & its products groups were lower in 7th and 8th grade. As results, calcium, riboflavin, and vitamin C intakes were lower in 7th and 8th grade students. Dietary patterns by cluster analysis resulted in $77\%$ of subjects with traditional pattern based rice and kimchi, and $23\%$ with modified pattern. All students regardless of grades showed high fat intake, above 20 percent energy intake from fat, and high cholesterol intakes. In conclusion, there was significant difference between 5th and 6th grade primary school students and 7th and 8th junior school students regarding food and nutrient intakes; It should be necessary to provide proper nutrient education and monitoring in order to establish good dietary profile.

• 한국치위생학회지
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• 제11권4호
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• pp.533-546
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• 2011

Objectives : The purpose of this study was to examine the oral health knowledge, attitude, behavior among 918 secondary students and their needs for oral health education in Seoul, Gyeonggi Province and Choongbuk Province. Methods : The collected data were analyzed by the statistical package SPSS 18.0, and frequency analysis, correlation analysis, crosstabs, t-test and ANOVA were utilized. Results : The girls proceeded the boys in oral health knowledge, and the high school students were ahead of the middle schoolers in oral health knowledge, attitude and behavior. Those who ever received oral health education surpassed the others who didn't in oral health knowledge and behavior(p<0.01). The students hoped to be provided with oral health education by dental hygienists during regular classroom hours once per semester, 30 minutes to one hour at a once, and their favorite ways of oral health education were videotape watching and practice. As for needs for oral health education, the middle school students had higher needs for that than the high schoolers, and the former's needs scores were above the average(p<0.05). Conclusions : There were differences among the students in oral health knowledge, attitude and behavior according to their school system, gender and oral health education experiences, but oral health education was provided without taking their differences into account. It was recommended, efficient oral health education programs should be developed by focusing on how to take care of and prevent oral diseases, and videotape watching and practice that were preferred by the secondary students should be included in the programs.

• 한국식품영양과학회지
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• 제26권2호
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• pp.291-299
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• 1997

에너지 섭취량은 남학생이 권장량의 89.7%, 여학생이 100% 섭취하고 있었다. 남학생의 열량 섭취량이 권장량 및 활동량에 비해 많은 양이 부족하게 섭취되고 있었다. 반면, 여학생은 섭취열량, 권장량, 활동량 간의 균형이 잘 이뤄지고 있는 것으로 조사되었다. 권장량에 비해 남학생은 총열량, 칼슘, 철의 섭취량이 약간 부족하였고, 여학생은 철의 섭취량이 미달되는 것으로 나타나 이 부분에 대한 영양교육이 이루어져야 할 것이다. 그러나 전반적으로 영양소의 섭취상태는 양호한 것으로 나타났다. 탄수화물과 단백질, 지방의 열량에 대한 구성비는 남학생이 64 : 16 : 20, 여학생이 62 : 16 : 22로 나타나 이상적인 섭취비율과 비슷한 비율을 보였다. 조사대상자의 평균 신장은 남학생이 160.0cm, 여학생이 155.5cm였고, 평균 체중은 남학생이 49.4kg, 여학생이 48.9kg으로 구미지역 중학생들의 발육상태가 양호한 것으로 나타났다. 상완위 둘레는 남학생이 23.1cm 여학생이 22.6cm로 평균적인 발육상태를 보였다. Caliper로 측정한 상박부 전 후면, 좌측 견갑골, 장골절, 종아리 부위의 피하지방 두께는 남학생이 7.3mm, 13.9mm, 11.4mm, 15.4mm, 21.2mm 여학생이 11.2mm, 18.4mm, 16.7mm, 18.4mm, 21.6mm로 나타났다. 비만으로 판정된 학생은 RBW는 남학생 5%, 여학생 6%, BMI는 남학생 4%, 여학생 10%였고, RI는 남학생 7%, 여학생 13%로 나타났으며, OI는 남학생 4%, 여학생 9%로 나타나 체격지수에 의한 비만판정에는 여학생이 남학생 보다 높은 비만율을 보였다. 상박부후면의 피부두겹 두께에 의한 비만판정은 남학생이 16mm, 여학생이 20mm 이상으로 이에 해당하는 남학생은 43명(24%), 여학생은 66(34%)명으로 나타나 체격지수에 의한 비만 보다 훨씬 높게 평가되는 경향을 보였다. Slaughter의 방법으로 비만으로 판정된 학생은 남학생이 105명(59%), 여학생이 58명(30%)으로 판정되었다. BMI를 이용한 Deurenberg의 방법에 의한 비만학생은 남학생이 27명(15%) 여학생이 13명(7%)으로 판정되었다. Siri의 방법에 의한 비만학생은 남학생 24명(14%), 여학생 2명(1%)으로 판정되었다. 체격지수와 부위별 피지후와의 상관관계에서 RBW는 네부위의 합과 가장 높은 관련 (.6776)을 보였고, BMI(.7542), RI(.7669), OI(.7675), %fatII(.8007)는 모두 견갑골과 가장 높은 상관관계를 보였다.