• Clinical and Experimental Pediatrics
• /
• v.53 no.11
• /
• pp.975-978
• /
• 2010

A 7-year-old boy presented with hematochezia and abdominal pain. A 3.7-cm-sized mass was identified in the ascending colon by abdominal computed tomography and colonoscopy. The patient underwent surgical resection. Pathological examination revealed a low-grade perivascular epithelioid cell tumor (PEComa). PEComa in the colon is very rare. Only a few cases have been reported so far. An effective treatment method for this rare tumor has not been established yet. The patient received adjuvant interferon-${\alpha}$ immunotherapy for 1 year. He has been tumor-free for 26 months since the initial diagnosis. This report is the first documented case of the use of interferon-${\alpha}$ for pediatric PEComa of the colon.

• Journal of the Korea Convergence Society
• /
• v.8 no.11
• /
• pp.249-256
• /
• 2017

This study was conducted concerning convergence education practice to examine the difference of learning activity participation based on college students' individual traits such as gender, grade and major. To achieve the purpose, the types of learning activity were divided into teacher-directed type, teacher-intervened type, peer-leader type, students' mutual initiative type, and then the difference of types of participation in learning activities based on learners' traits was examined. The results of crosstabs showed that there were differences in the participation of learning activities depending on the students' individual traits. The participation of girl students in gender, first year students in school-year, and students of Health & Social Service in major was significantly high.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
• /
• v.2 no.1
• /
• pp.56-62
• /
• 1991

The author reported treatment experiences of 4 cases with test anxiety. The first one was a 15 year old boy with problem of mild attention deficit which caused test anxiety and academic underachievement around the 8th grade in middle school. The second and the third cases were brother and sister. The test anxiety was caused basically due to the problem of mother child relationship. their mother expected too much of her son and always urged him to study and never left him alone. The mothers practically gave up her whole life to devote to oversee her son's academic achievement and her daughter experienced affectional deprivation. The fourth case, a 16 year old boy, was a borderline personality disorder with extreme anger and hostility toward his parents who controled him too much. Different therapeutic approaches appropriate for different cases were described and the relationship between test anxiety and various psychopathology was discussed.

• Journal of the Korean School Mathematics Society
• /
• v.3 no.2
• /
• pp.83-97
• /
• 2000

The purpose of this study is to help the efficient and practical teaching and learning of a mathematic subject in schools by comparing and analyzing the sixth and seventh curriculum of mathematics on the basis of the demand that the current curriculum should be improved, made, and adapted newly. This paper 1. studies the meaning of the curriculum and the theory of the curriculum of mathematics 2. looks into the history of the curriculum of mathematics from the first to the sixth. 3. compares an outline of the sixth and seventh curriculum. As a result, it exhibits the great difference in giving students choices for subjects and nullifying the meaning of the subject distinction, which means a new system with consistency based on the concept of a grade system instead of the present school system. 4. summarizes the result of comparing and analyzing the sixth and seventh curriculum which will be practiced from the year 2002 5. The beginning of the seventh curriculum in high schools will be from the year 2002 and the ministry of education is expected to take proper actions for its successful settlement, yet at this point this study gives some suggestions for its smooth and normal operation.

• Journal of Engineering Education Research
• /
• v.16 no.5
• /
• pp.24-35
• /
• 2013

This study aims to explore self-directed learning strategies of high academic achievers majoring in engineering. The research participants were 21 fourth-year students who had attained the first or second highest cumulative grade point average in each department during the past three-year and were asked to write an essay on "my successful learning methods or techniques." The essays were analyzed by theme analysis method which is one of the qualitative methods to extract the self-directed learning strategies used by high performing students. According to the results of this study, the self-directed learning strategies of excellent students could be categorized into fundamental strategies to induce self-directed learning, preparatory strategies, implementation strategies and management strategies for marinating self-directed learning. Detail information on each category is as follow: 1) fundamental strategies refer to positive and pleasant mind, academic confidence and effort attribution, 2) preparatory strategies refer to concrete and challenging goal setting, establishment of learning strategies adjusted courses characteristics and practical learning planning, 3) implementation strategies refer to intensive learning in class, knowledge exploration, knowledge acquisition, social networking and exhaustive preparation for exams and 4) management strategies refer to time management and learning environment management.

• Korean Journal of Human Ecology
• /
• v.16 no.3
• /
• pp.491-504
• /
• 2007

This study was based on resilience approach to find out elementary first, second, and third year students' differences of social support and problem solving ability defending on their family situation (low-income divorced family or normal family) by comparing their sex and age. In addition, the purpose of this study was to find out the effect of factors (social support, problem behavior, and problem solving ability) of children defending on their family situation and age. Moreover, it was aimed to find out the effect of social support and problem solving ability of low-income divorced family's children on their problem behavior. Subjects were 165 children in elementary school (grade 1, 2, and 3). For this study two groups were used for comparison. First, low-grade elementary school children with low-income divorced parents (N=87), "group D" and second, with low-income non-divorced parents (N=78) "group N". The questionnaire, picture cards, and teacher's report was used to determine social support perception, problem-solving ability, and problem behavior, respectively. Results showed that "Group D" was determined to show regarding social support, problem-solving ability, and problem behaviors worse than "group N". In conclusion, problem behaviors of "group D" were affected by social support and their problem-solving ability.

• Human Ecology Research
• /
• v.59 no.2
• /
• pp.233-243
• /
• 2021

This study examined the longitudinal effects of media usage by early school-age children and of maternal parenting stress on children's school adjustment. The study focused on the mediating effect of executive function difficulty. Longitudinal data to examine the hypothetical model were drawn from the eighth (2015) through tenth (2017) waves of the Panel Study of Korean Children (PSKC) collected by the Korea Institute of Child Care and Education (KICCE). A total of 581 children (293 boys and 288 girls) and their mothers were included. Confirmatory factor analysis, structural equation model, and bootstrapping analysis were applied using SPSS 25.0 and Amos 26.0. The results are as follows. First, no significant correlation was found between early school-age children's media usage and maternal parenting stress. Second, neither media usage by early school-age children nor maternal parenting stress were found to directly affect children's school adjustment. Third, media usage by early school-age children and maternal parenting stress were shown to indirectly affect children's school adjustment via executive function difficulties. In other words, higher levels of media usage by early school-age children and maternal parenting stress during the first grade lead to greater executive function difficulties after a year, which, in turn, lead to a lower level of school adjustment in the third grade. This study indicates the need to develop practical support for the psychological wellbeing of mothers while they are performing their role as a parent and for children in maintaining suitable levels of media usage during early childhood.

• Journal of the Korean Society of School Health
• /
• v.14 no.2
• /
• pp.237-248
• /
• 2001

This study was designed to identify the relation between the Perceived Social Support and the Self-care Agency of high school students in a rural area. The subjects for this study were 250 students living in Chonnam province: among first grade, second grade and third grade students were 98, 89 and 63 respectively. The data were collected during the period from April 2 to 4, 2001. The instruments used in this study were the Generally Perceived Social Support Scale developed by Park, J. W.(1985) and Self-Care Agency Questionnarie developed by Deneys(1981). The data were analyzed by descriptive statistic, t-test, ANOVA, and Pearson's correlation using the SAS PC+ Program. The results were as follows: 1. The mean score of the Perceived Social Support was 3.19. 2. The mean score of the Self-care Agency was 2.65. 3. There was a significant differences in school year(F=3.11, p=.046), educational level of the father(F=3.41, p=.035) that of the mother(F=4.07, p=.019), and economic status(F=8.99, p=.000), school performance(F=16.37, p=.000) from Perceived Social Support between general characteristics. 4. There was a significant differences in economic status(F=4.55, p=.004), school performance(F=6.72, p=.002) from self care agency between general characteristics. 5. The relation between the score of the Perceived Social Support and Self-care Agency was significant(r=.49, p=.0001). The relation between the score of the direct Perceived Social Support and Self-care Agency was significant(r=.50, p=.0001) and the relation between the score of the indirect Perceived Social Support and Self-care Agency was also significant(r=.40, p=.0001). In conclusion, it was found that higher score of the Social Support was a higher level of the Self-care Agency, especially the direct Perceived Social Support. The score of the Social Support and Self-care Agency was significantly differentiated according to economic status and school performance.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
• /
• v.37 no.1
• /
• pp.72-76
• /
• 2011

Polymorphous low-grade adenocarcinomas (PLGA) are distinctive salivary gland neoplasms with a propensity to arise from the minor salivary glands. The most frequent location of PLGA is the palate, even though other locations have been described. Previously used terms for PLGA include lobular carcinoma and terminal duct carcinoma. Although the frequency of the tumor is unknown, the recognition of PLGA as an individual tumor has increased with the establishment of specific histopathological criteria characterizing the PLGA. The first choice of treatment is a wide surgical excision including the subjacent bone if necessary. The prognosis is generally good and the recurrence rate ranges from 17% and 22%. Distant metastases is unusual (9%) but occur mainly in the regional lymph nodes. This is a case report of a 67 year old female patient with PLGA who was treated with a wide excision by layers (2 stage) of the lesion including the surrounding bone. We present this case with a review of the relevant literature.

• Journal of Science Education
• /
• v.34 no.1
• /
• pp.105-112
• /
• 2010

The purpose of this research was to investigate relations between prior knowledge and primary grade science brilliant intellect's observation and inquiry. The subjects were selected 'Spider and cobweb' that self-regulation quest is available. Subjects were divided into two groups with one group having no prior knowledge about research subject. Compared observation method question type and level that appear between subject achievement to group. Target learning group are 5 ~ 6 school year 17 people for national university for the gifted center of local middle city. Researcher collected and analyzed data using summer vacation concentration education period. Source collection subject's research recording paper, subject's voice recording device, interview data etc. A data analysis tool took advantage of observation method that is studied in existing, question type, question level. Research was able to conclude : First, observation of prior knowledge happened than mass of students who many mass of students are few relatively vigorously. Second, primary grade science brilliant intellect students used more mainly manufacturing observation than simplicity observation that use senses regardless of relative quantity of prior knowledge. Third, prior knowledge expressed variety when many mass of students observe operation relatively.