• Title/Summary/Keyword: studies of elementary science education

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Risk Factors for Allergic Diseases in School-Aged Children (알레르기 질환을 가진 초등학교 고학년의 식생활·환경적 요인 및 성장과의 관련성 분석)

  • Min, Seonae;Cho, Mijin;Park, Kyong
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.42 no.9
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    • pp.1387-1394
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    • 2013
  • Allergies are one of the most common chronic diseases during childhood. While the prevalence of allergic disease in children is increasing dramatically, few studies have evaluated the risk and preventive factors related to this health condition, especially in South Korea. The purpose of this case-control study was to evaluate independent determinants of allergic disease, and to examine whether it is associated with growth and other health conditions in childhood. The current study included 209 cases and 311 age and sex-matched controls (fifth and sixth graders) residing in Daegu, South Korea. Environmental data was collected, including child and family histories of allergies, birth information, and reaction to weaning foods during infancy. In addition, current dietary habits (assessed by 2 day-24 hr food records), health conditions, and anthropometric data were obtained through questionnaires and student health check-ups at the school. Based on chi-square tests, cases had a significantly higher prevalence of having a disease at birth, an allergic reaction to weaning foods, frequent hospital visits, and frequent experiences of the common cold and digestive diseases. In addition, significantly more mothers had a higher education in the cases compared to controls. Based on multivariable conditional logistic regression analysis, factors significantly associated with greater odds for having allergies were parental (OR=21.42) and fraternal (OR=14.40) histories of allergies. The anthropometric measures showed that cases tended to be shorter in height and lighter in weight than the controls, but these differences were not statistically significant. These findings may indicate that current nutrient intakes may not be the only critical factor associated with delayed growth delay in the allergic group. A well-planned, large cohort study is warranted to confirm our findings in the future.

A Comparative Study of Health State and School Adaptation between Children in Divorced Family and in Normal Family (학령기 정상가정자녀와 이혼가정자녀의 건강상태와 학교생활적응정도 비교연구)

  • Cho, Kyoul-Ja;Ji, Eun-Sun
    • Research in Community and Public Health Nursing
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    • v.13 no.4
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    • pp.743-756
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    • 2002
  • Purpose: This study is a descriptive and comparative study that compares health state and school adaptation between children in divorced family and in normal family. Study results will provide a basic data for the development of an intervention program designed to help children in divorced family adjust to their crisis. Method: The study subjects consisted of 700 children in 4th. 5th or 6th elementary school grade, residing Seoul and Kyunggi regions. Among these subjects, 123 were children with divorced family and 577 were children with normal family. The health status of the subjects was measured by Health Symptom Questionnaire developed by Shin and revised by the investigators. The instrument consisted of 30 items measuring physical and emotional health symptoms. The level of school adaptation of the subjects was measured by School Adaptation Scale developed by Lee, which consisted of 4 dimensions with 20 items what measures relationship with peer students, learning activity, observance of regulation, and participation of school activity. The investigators visited the schools and collected data in the classes using the questionnaire after explaining the purpose and procedures of the study to the children. The data were analyzed by descriptive statistics, $\yen\"{o}2$-test, t-test, ANOVA using the SPSS PC + statistical program. Result: First, the mean health state score in children with normal family (M=11.99) was higher than that in children with divorced family (M=19.15), showing a significant difference (t=-6.51, p=.000) between the two groups, which suggests that children with normal family have better health state than children with divorced family. Second, the mean school adaptation score in children with normal family (M=38.99) was higher than that in children with divorced family (M=26.97), showing a significant difference between the two groups (t=104.07, p=.000), which suggests that the school adaptation of children with normal family is better than that of children with divorced family. Third, in comparison of health state between the two groups by general characteristics. there were significant differences between the two groups in sex. the most contributing factor to health status of the children, school year. birth order, religion, school achievement, amount of monthly pocket money, parents level of formal education, occupation of parents, economic status (p<.05). Forth, in comparison of the level of school adaptation between the two groups by general characteristics, there were significant differences between the two groups in most variables (p<.05), suggesting that children with normal family had better capacity of school adaptation than children with divorced family. Conclusion: As a result. this study showed that the parent's divorce had great influence on children's health status and school adaptation capacity. The implication for nursing is that there is a need to develop supportive interventions for the high-risk children who have decreased health states and school adaptation capacity due to the divorce of their parents. In addition, it is recommended that further studies should be conducted to explore protective factors for the prevention of health and adaptation problems in children.

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Studies on the Sugars and Total Nitrogen Contents of Ginseng Extracts with Different Ethanol Concentrations (Alcohol 농도별(濃度別)로 추출(抽出)한 인삼(人蔘)엑기스의 당질(糖質)과 총질소(總窒素)에 관(關)한 연구(硏究))

  • Joo, Hyun-Kyu;Cho, Kyu-Seong;Lee, Moon-Soo
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.11 no.1
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    • pp.31-36
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    • 1982
  • Sugars and nitrogen contents and physico-chemical properties of ethanol extracts of fresh, dried, and tail ginsengs with different concentrations of the solvent were investigated. The transmittance at 550nm of fresh, dried and tail ginseng extracts (1% D.Wsoln) respectively, and all the extracts were slightly viscous-sticky, brown and pH of 4.8-6.2 Total sugars, sucrose and starch contents of the extracts were decreased with increasing of enthanol concentration as a solvent. Total sugar content of the extracts were decreased in the order of dried, tail and fresh ginseng and sucrose content were decreased in the order of fresh, driedcand tail ginsengs and starch content were decreased in the order of tail, dried and fresh ginsengs. The reducing sugar contents of the extracts were 4.9-3.8 %, 8.6-12.8 % and 7.6-9.1% in fresh, dried and tail ginsengs, respectively. Total nitrogen contents of the extracts were 2.3-4.6% in average and decreased in the order of dried, fresh and tail ginsengs.

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Relationship between Broca Index of Late School-Aged Children and Their Mothers' Eating, Cooking, and Exercise Habit (어머니의 식습관, 요리습관 및 운동습관과 학령기 후기 아동의 Broca 체질량지수와의 상관관계 연구)

  • Lee, Hyerim;Lee, Kyoung-Eun;Ko, Kwang Suk;Hong, Eunah
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.45 no.10
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    • pp.1488-1496
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    • 2016
  • The purposes of this study were to analyze mothers' eating, cooking, and exercise habits based on their demographic characteristics and to examine the relationship between those habits and their late school-aged children's Broca index. A total of 393 questionnaires were mailed to the mothers of late school-aged children who registered at four elementary schools in the Seoul area, of which 159 participants (40.0%) completed questionnaires. Statistical data analyses were performed using SPSS/Win 21.0 for descriptive statistics, t-test ANOVA, and Pearson's regression coefficient. There was a statistically significant difference in mothers' cooking habit (F=3.920, P=0.022) and exercise habit (F=3.211, P=0.043) according to their educational level. Interestingly, 82.4% of mothers had a Broca index of less than 90% of normal body mass level. A significant positive correlation of Broca index between mothers and their late school-aged children (r=0.345, P<0.001) indicated that children whose mothers had a low body mass level also tended to have a low body mass level. In this study, late school-aged children's Broca index was not significantly related with mother's eating (r=-0.072, P=0.367) or exercise habits (r=-0.010, P=0.897) but was significantly related with their mother's cooking habits (r=-0.157, P=0.048). Considering there are few studies examining the impacts of mother's cooking habits on their children's appropriate body mass, the results suggest that developing an effective educational program to cultivate mothers' healthy cooking habits to improve school-aged children's health status is very important. The findings of this study provide important data that could be used when developing health education programs tailored to the multi-dimensional impacts of mothers' life habits on their last school-aged children's developmental health status.

An Analysis of 10th Grade Students' Understanding of Concepts about the Plates' Motions according to the Level of Spatial Ability (공간능력의 차이에 따른 10학년 학생들의 판 운동 관련 개념에 대한 이해 분석)

  • Lee, Hyo-Nyong;Cho, Hyun-Jun;Park, Mi-Ran
    • Journal of the Korean earth science society
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    • v.33 no.4
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    • pp.360-375
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    • 2012
  • The purpose of this study was to compare 10th grade students' understanding of concepts about the plates' motions depending on the different spatial ability. Based on previous studies and literature reviews, two instruments were selected and used in this study. The Spatial Perception Test developed in Korean Testing Center was applied to measure students' spatial ability. Another instrument for testing students' understandings of plates' motions consists of a total of 10 items. The instruments were distributed to 118 students who were 10th graders in metropolitan city. The results are as follows: First, a correlation coefficient between conceptual understanding of plates' motions and spatial ability was r=0.439 (p<.01). It indicates that conceptual plates' motions and spatial ability have a moderate relationship. The students were divided into two groups (high and low) by spatial ability. The independent t-test was performed and reveals that the statistically significant difference between high and low groups. On the other hand, the 6 students (3 higher spatial ability students and 3 lowers) were selected and interviewed individually to find the differences in their understanding of the concept of plates' motions. The findings from interviews indicate that most students recognized about concepts of trench and ocean ridge, a rise and drop of the mantle, and divergent and convergent boundaries. However, students had misconceptions about section of trench and ocean ridge. In addition, the students who had higher spatial ability knew the more proper concepts about the creation and extinction of plate, crustal movements, and bottom of the ocean extension, whereas the students who had the lower spatial ability had misconceptions.