• 대한핵의학회지
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• 제36권5호
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• pp.298-305
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• 2002

목적: 혈액 종양 질환을 가진 한자들에서 과립구에 대한 단일클론항체를 이용한 골수 스캔을 시행하여 혈액 종양 질환의 종류에 따라서 말초 골수의 분포를 등급화하고 중심성 골수의 정량적 섭취율을 구하였으며 또한 이들 상호간의 관련성을 조사하였다. 대상 및 방법: 혈액 종양 환자 중에서 골수 조직검사를 시행하여 진단이 확진되고 Tc-99m antigranulocyte monoclonal mouse antibody BW 250/183를 이용한 골수 스캔을 시행한 환자 50명을 대상으로하였다. 환자는 4군으로서 급성 골수성 백혈병 환자 11명, 급성 임파구성 백혈병 환자 12명, 임파선종 환자 15명, 골수이형성증후군 환자 12명이었다. 골수 스캔의 분석은 말초 골수 분포는 골수 확장 소견에 따라 4개의 등급으로 분류하였고, 중심성 골수 기능은 장골과 천골에 관심영역을 그려 섭취율을 계산하였다. 결과: 말초 골수 확장의 정도는 전체 환자 50명 중에서 1등급에 4명, 2등급에 27명, 3등급에 15명, 4등급에 4명 이었다. 말초 골수 확장의 정도는 골수이형성증후군과 임파구성 백혈병에서 3, 4등급이 58% (7/12)로 심하였고 임파종에서는 1, 2등급이 93% (14/15)로 가장 경하였으며 질환별로 특이적인 분포는 보이지 않았다. 중심성 골수의 섭취율은 4가지 질환 중 골수이형성증후군에서 $8.5{\pm}4.0$으로 가장 높았고, 급성 임파구성 백혈병에서 $5.9{\pm}3.6$으로 가장 낮았으나 4군 간에 통계적으로 유의한 차이는 없었다(p>0.05). 말초 골수 화장 정도에 따른 중심 골수의 정량화는 4가지 등급간에는 섭취율에 있어서 통계적으로도 유의한 차이가 있었으나(p=0.003), 개개의 환자에서 말초 골수 확장 정도와 중심 골수의 정량값의 상관관계는 거의 없었다(r=0.05). 결론: 혈액 종양 질환에서 골수 스캔은 말초 골수의 분포와 중심 골수의 기능에 있어서 질병 특이적인 소견은 보이지 않았으며, 골수의 변화는 말초 골수와 중심 골수에 서로 상관 관계없이 변화를 초래하므로 한 가지 방법으로 보다는 두 가지 방법으로 평가할 필요가 있다.

• 아동학회지
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• 제33권4호
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• pp.35-50
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• 2012

This study explored the moderating effects of self control and social support in terms of the relationship between stress and problem behaviors of children of divorced single parent families according to gender. A questionnaire was administered to elementary school-aged children (grades 3-6). 266 children from divorced single parent families were surveyed. The major findings were as follows : first, self control had a moderating role to play in the relationship between stress and problem behaviors for girls. Second, social support also had a moderating effect in the relationship between stress and problem behaviors for boys. Third, the variables having a moderating effect in the relationship between stress and problem behaviors of children also differed according to gender. Therefore differences in gender should be considered when seeking moderating the relationship between stress and problem behaviors of children.

• 대한수학교육학회지:학교수학
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• 제14권4호
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• pp.565-577
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• 2012

본 연구에서는 중학교 3학년 학생들에게 닮은 삼각형의 대응변 사이에 성립하는 비례적 성질에 기초하여 역동적 기하환경에서 이차방정식 $x^2-ax+b^2=0$의 해를 작도할 수 있는 기회를 제공하였다. 이 예비연구를 통해 이차방정식의 해에 대한 학생들의 기하학적 직관을 촉진시키고 $a$와 $b$의 값에 따라 이차방정식의 해가 어떻게 달라지는지 시각적으로 확인해 보게 하였다. 또한, 이 과정에서 학생들이 이차방정식의 해를 구하기 위해서 어떤 전략을 사용하는지 분석하여 이차방정식 지도 방법의 새로운 가능성을 살펴보고자 하였다.

• 가정과삶의질연구
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• 제30권2호
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• pp.65-73
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• 2012

This study investigates influence of parental attachment on school adjustment using self-perceived competence as a mediating variable for perceived school age children. The subjects were 760 children who are 4, 5, and 6 grades in 4 elementary schools at Daegu. The collected data were analyzed by single and multiple regressions that used SPSS win 19.0 The results were as follows: (1) The parental Attachment perceived by school-age children was positively associated with on school adjustment. The parental attachment level of school-age children becomes higher as the perception of school adjustment increases. (2) The parental attachment perceived by school-age children was positively associated with self-perceived competence. That is, the parental attachment level of school-age children becomes higher as the self-perceived competence increase. (3) The effect of parental attachment in the school adjustment by children was reducing explanation when controlled for the self-perceived competence. The Parental attachment that influenced the school adjustment is partially mediated by self-perceived competence. The results of this research indicates that both the quality improvement of inter-relationship between children and parents for school adjustment of school-age children and training for strengthening self-perceived competence of school-age children are important.

• Child Health Nursing Research
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• 제15권4호
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• pp.343-349
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• 2009

Purpose: The purpose of this study was to identify the relationships among self-esteem, meaning in life, and spiritual well-being in middle school students. Methods: The research design was a descriptive correlational survey involving 405 middle school students in grades 1 to 3 in S city, K city, and C city. Data were collected from March to May 2008 using questionnaires. Means with standard deviation, t-test, ANOVA, Duncan post-hoc test, and Pearson correlation coefficients were used to analyze the data. Results: According to general characteristics of the students, there were statistically significant differences in self-esteem for gender, grade, and region, in meaning in life, there were significant differences for grade, gender, and region, and in spiritual well-being, there were statistically significant differences for gender, religion, and region. There were significant correlations between self-esteem and meaning in life, between self-esteem and spiritual well-being, and between meaning in life and spiritual well-being. Conclusion: Self-esteem, meaning in life, and spiritual well-being should be considered as important factors for healthy development in the middle school period. These three variables should be considered as the main content for self-development programs for middle school students.

• 말소리와 음성과학
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• 제6권4호
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• pp.151-159
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• 2014

The study investigated the effects of reading intervention to enhance reading fluency for children from low-income families. The participants were 20 children from low-income families who are in grades 1 to 3. To qualify for participation in this study, all children had to score below 30 % ile on the Receptive vocabulary Test of the Expressive and Receptive Vocabulary Test or the Word reading fluency of the Korean Language-Based Reading Assessment. Participants were randomly assigned to the intervention (n=10) or control (n=10) group. The intervention group participated in the individualized intervention program using the guided repeated reading and the corrective feedback strategies. The results showed that participants in the intervention group performed better on reading fluency than those in the control group after participating in the intervention program. Specifically, guided repeated reading with corrective feedback strategies produced significant improvement on generalization to unpracticed passages as well as practiced passages. The results of this study suggest that guided repeated reading with corrective feedback is effective for enhancing reading fluency for children in Korea. Further study is needed in order to develop language-specific reading intervention.

• 자원환경지질
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• 제31권5호
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• pp.375-388
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• 1998

The purpose of this study is to investigate the ore genesis and occurrence of the Wondong polymetallic mineral deposits. The Pb-Zn, Fe and W-Mo mineralizations are found in skarn zones which formed mainly in or along the fault shear zones with the $N25-40^{\circ}W$ and $N10-50^{\circ}E$ directions, whereas the Cu-Mo mineralization is appeared hydrothermal replacement zone. The skarn minerals consist mainly of garnet and epidote, which were the last alteration phases between pneumatolytic and hydrothermal stages. The mineral paragenesis toward the late stage are as follows: arsenopyrite, scheelite, magnetite, pyrite, pyrrhotite, sphalerite, galena, chalcopyrite and molybdenite. Average ore grades are 0.33 g/t Au, 46.29 g/t Ag, 0.06% Cu, 4.4% Pb, 2.61% Zn and 29.39% Fe in tunnels, and 0.31 % Cu, 0.52% Pb, 6.29% Zn, 29.29% Fe, 0.03% Mo and 0.12% $WO_3$ in drill cores. Fluid inclusion data shows that Type I (liquid-rich), Type II (vapor-rich) and Type III (halite-bearing) inclusions are coexisted and their homogenization temperatures are quite similar. This indicates that boiling conditions have been reached during the mineralization. It is also likely that the ore solutions were evolved through the mixing between magmatic and meteoric waters. Rhyolite and quartz porphyry far the mineralization probably are not responsible of the Wondong polymetallic mineral deposits.

• 혜화의학회지
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• 제8권1호
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• pp.425-449
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• 1999

For the evaluation of the effect on SWS, experiments were made on hyperlipidemia induced by hypercholesterol diet, inhibitory reaction to human platelet aggregation, Pulmonary thrombosis induced by collagen and epinephrine, global cerebral ischemia induced by KCN, brain ischemia induced by MCA occlusion, cytotoxicity of PC12 cells induced by amyloid ${\beta}$ protein(25-35), and NO production in RAW cells stimulated by lipopolysaccharide. The results were obtained as follows : 1. In the experiment on hyperlipidemia, the level of serum total cholesterol, phospholipid, and LDL-cholesterol were significantly decreased while the level of triglyceride, VLDL-cholesterol, and HDL-cholesterol had no significant change. 2. In the experiment on inhibitory reaction to platelet aggregation, SWS inhibited platelet aggregation induced by ADP(36.05%), by collagen(20.4%), and by thrombin(0.6%). 3. In the experiment on pulmonary thrombosis induced by collagen and epinephrine, the protective effect was found(37%). 4. In the experiment on global cerebral ischemia, coma duration induced by KCN changed insignificantly. 5. In the experiment on MCA occlusion, the change of neurologic grades on hind limb was significant only after the operation. Besides brain ischemic area and edema ratio were significantly decreased. 6. In the experiment on cytotoxicity of PC 12 cells induced by amyloid ${\beta}$ protein, the significant protective effect was found as concentration increases. 7. In the experiment on NO production in RAW cells stimulated by lipopolysaccharide, NO was significantly decreased. According to the results, it is expected that SWS might be effective on hyperlipidemia and brain damage.

• 대한가정학회지
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• 제30권4호
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• pp.137-152
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• 1992

The purpose of this research is to obtain an empirically-based understanding of the attitudes of those children and mothers living in three different housing types : detached houses. row houses / villa and apartments. The subjects are 547 elementary school children in the fourth, fifth and sixth grades and their mothers in four different residential areas, Seoul. Followings are the result of this research. 1) Mothers put the first priority on the convenience of the dwelling space from the educational point of view, and they make complaints about their present dwelling space, in particular, children's play and storage space and the size of children's room. 2) They care a lot about the size of housing and, if the size of the housing is held constant, the mothers living in the apartments have more complain about. 3) The difference in the way children and mothers regard their dwelling space is great. The mothers would like to draw a clear line between rest space and play space. They would like to see their children play in their rooms, but children want to make use of the whole space of their housing for play. 4) Mothers think that the children's rooms should be used primarily for study while children think that their rooms have multiple uses such as studying, resting, and playing.

• International Journal of Internet, Broadcasting and Communication
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• 제13권4호
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• pp.154-168
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• 2021

The purpose of this study is to develop and validate the disaster safety awareness scale for high school students. For this purpose, the previously developed disaster safety awareness scale and related prior research was analyzed. Questionnaire data was collected from March 22 to May 25, 2021 from 1054 students (male: 569, female: 485) in the first, second, and third grades of 5 high schools in 3 cities. Through the process of revising, supplementing, and reviewing the items extracted through preliminary research and preliminary test together with experts and students, a final disaster safety awareness scale consisting of 24 items was developed. This scale consists of four sub-factors: 'disaster prevention', 'disaster response A', 'disaster response B', and 'disaster recovery'. Good reliability and validity were secured through exploratory and confirmatory analyses. The significance of this study is that it laid a basic and objective foundation for high school students' disaster safety awareness research by developing a validated scale in a situation where the development of disaster safety awareness scales for high school students was still insufficient. It can be used as useful data for fire safety education as well as a psychological measurement tool for fostering fire safety awareness.