• Advances in nano research
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• v.14 no.1
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• pp.93-101
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• 2023

This research aims to explore the influence of early entrepreneurial education on cognitive and non-cognitive abilities of male sixth-grade primary school pupils using a randomized pretest-posttest control group design. A total of 45 students were randomly allocated to experimental, active-control, and control groups using a multi-stage random selection procedure. The experimental group was taught entrepreneurship using the Bizworld entrepreneurship education package. The active control group did not get entrepreneurship education but was instructed on a non-entrepreneurship-related issue (hygiene). The Control group received no instruction. The findings revealed that early entrepreneurial education skills impacted noncognitive abilities (such as risk-taking propensity, creativity, self-efficacy, persistence, and need for achievement). Early entrepreneurship education seems to be an effective technique for developing children's non-cognitive abilities in the late years of primary school. As a result, entrepreneurship education may be taught in primary schools, emphasizing the development of non-cognitive abilities, which will affect children's individual, educational, social, and vocational futures and can have long-term advantages for students, families, and society.

• Journal of Korean Elementary Science Education
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• v.19 no.1
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• pp.15-28
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• 2000

This study is intended to develop a CAI program on the topic of flowing rivers and to investigate how 4th grade students' concepts of it change through this program. The CAI program is made using the GREAT II copyright tool based on a typical 4th grade science Korean textbook. This program consists of 5 sections, which are introduction, rain waters, running waters, river waters, and activity. All contents are animated. Students are 30 4th grade students. One instrument is used how to investigate the concept change of the flowing rivers. The instrument is called the Identification of Flowing River Concept Test(IFRCT, Appendix), which is of a two-tier type and has 8 items. Data are collected before and after the instruction using this program. Data are classified as a scientific model, a naive model, or a "no" model, based on criteria used by Vosniadou(1989). Data are compared. The results show that 4th grade students after the instruction using this program hold a more scientific model on the flowing rivers, than before the instruction using this program. Therefore, the author urges science teachers to use the CAI program to teach students about the flowing rivers.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• v.41 no.1
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• pp.48-51
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• 2015

Cemento-ossifying fibromas are benign tumors, and, although cases of an aggressive type have been reported, no cases of cemento-ossifying fibroma transforming into osteosarcoma have been documented previously. Low-grade osteosarcoma is a rare type of primary bone tumor, representing 1%-2% of all osteosarcomas. A 45-year-old female patient was diagnosed with cemento-ossifying fibroma, treated with mass excision several times over a period of two years and eight months, and followed up. After biopsy gathered because of signs of recurrence, she was diagnosed with low-grade osteosarcoma. The patient underwent wide excision, segmental mandibulectomy, and reconstruction with fibula free flap. The aim of this report is to raise awareness of the possibility that cemento-ossifying fibroma can transform into osteosarcoma and of the consequent necessity for careful diagnosis and treatment planning.

• Journal of the Korea Fashion and Costume Design Association
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• v.16 no.4
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• pp.177-188
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• 2014

This research is aimed at analyzing the evaluation for the design and satisfaction/unsatisfaction of the autumn and winter school uniform targeting junior students and sophomore students at academical and vocational high schools located in Ulsan, Korea. For this research, SPSS 12.0 was used to measure the frequency and the t-test analysis of 396 data. The results of this study are as follows. The most important factor of autumn-winter school uniforms was heat-retainment. It was showed significant differences between sphere and grade. They also answered body shape' faults and figure emphasis as the most distressed factors. In the design of the school uniform, It was not show significant differences between sphere and grade. They considered the silhouette when they worn the school uniform as the most important factor. The primary factors in purchasing a uniform appeared to be price. Repair experiences after purchasing a school uniform found to count more among students. Examination about transformed parts of uniforms for the students with experiences in uniform modification showed that many students in the academic sphere modified length and width of upper wears, and length of skirt, while many students in the vocational sphere modified waist and hip. Junior grade than sophomore grade appeared to have modified in all parts.

• Journal of Yeungnam Medical Science
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• v.38 no.2
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• pp.169-174
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• 2021

Mucoepidermoid carcinoma (MEC) is the most common malignant neoplasm of the salivary gland, but primary thyroid MEC has rarely been reported and usually has a good prognosis. Herein, I report a case of thyroidal MEC with a poor prognosis in an 82-year-old woman with an anterior neck mass. Ultrasonography and computed tomography revealed a thyroid mass. The patient initially underwent fine-needle aspiration, was diagnosed with malignancy, and underwent a right lobectomy. On gross examination, a 4.0×3.6×2.6 cm-sized ill-defined, unencapsulated, and infiltrative tan to whitish mass with necrosis was identified. Microscopically, epidermoid tumor cell nests or solid sheets were identified. Mucous cells that were positive for periodic acid-Schiff and mucicarmine stains were also identified within epidermoid cell nests. Frequent mitosis and necrosis were observed. Immunohistochemical staining for p40 and p63 was positive, and that for thyroid transcription factor-1 and paired box gene 8 was focally positive. According to the Armed Forces Institute of Pathology grading system for salivary gland MEC, the current case was classified as high-grade MEC. After surgery, the patient suffered from dyspnea due to a remnant neck mass that compressed and obstructed the trachea; therefore, the patient refused further treatment. Thyroidal MECs are considered low-grade with a favorable prognosis, but there are several reported cases of thyroidal MEC with poor prognosis. The current case is a rare presentation of high-grade thyroidal MEC with a poor prognosis.

• Journal of Gifted/Talented Education
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• v.24 no.1
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• pp.17-43
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• 2014

On the subjects of elementary 3rd grade three child prodigies who had learned the four fundamental arithmetic operations and primary concepts of fraction, this study conducted a qualitative case research to examine how they composed schema of addition and multiplication of fractions and transformed schema through recognition of precise concepts and linking of concepts with addition and multiplication of fractions as the contents. That is to say, this study investigates what schema and transformed schema child prodigies form through composition of primary mathematic concepts to succeed in relational understanding of addition and multiplication of fractions, how they use their own formed schema and transformed schema for themselves to approach solutions to problems with addition and multiplication of fractions, and how the subjects' concept formation and schema in their problem solving competence proceed to carry out transformations. As a result, we can tell that precise recognition of primary concepts, schema, and transformed schema work as crucial factors when addition of fractions is associated with multiplication of fractions, and then that the schema and transformed schema that result from the connection among primary mathematic concepts and the precise recognition of the primary concepts play more important roles than any other factors in creative problem solving with respect to addition and multiplication of fractions.

• Tuberculosis and Respiratory Diseases
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• v.52 no.1
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• pp.76-85
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• 2002

A primary pulmonary malignant lymphoma is a rare disease. It is thought to be a category of non-Hodgkin's lymphoma arising from the bronchous-associated lymphoid tissue (BALT). The majority of primary pulmonary lymphomas are low-grade, small B-cell lymphomas, which are associated with Sjogren's syndrome and similar autoimmune disorders. A case of primary pulmonary low-grade B-cell lymphoma arising from the BALT was encountered in a patient with systemic lupus erythematosus. A 54-year-old man was admitted to the hospital for the evaluation of left pleuritic chest pain and multiple joint pain in both hands. Serologic tests for collagen vascular disease were performed. The results of ANA and anti-ds-DNA were all positive. The computed tomography of the chest showed patchy consolidations in the left lower lobe with a pleural effusion and a video-assisted thoracoscopic biopsy was performed. Here we report a case of a low-grade B-cell lymphoma of BALT in a patient with systemic lupus erythematosus with a review of the relevant literatures.

• Journal of Gastric Cancer
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• v.1 no.4
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• pp.215-220
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• 2001

Purpose: The aim of the study was to obtain data on the anatomic and histologic distributions, the clinical features, and the treatment results for patients with primary gastric non-Hodgkin's lymphoma. Materials and Methods: One hundred thirty-two patients who were treated at 8 university hospitals and 2 general hospitals between January 1991 and December 2000 were enrolled to evaluate clinico-pathologic features. Results: The lower one-third of the stomach was the most frequent site ($42\%$), and the most frequent chief complaint was epigastric pain ($54\%$). Gastric resection was performed in 114 cases. Pathologic findings of preoperative endoscopic biopsy specimens from the 114 patients that underwent surgery were a gastric lymphoma in 94 cases ($82\%$), a carcinoma in 15 cases ($13\%$), an ulcer in 4 cases ($4\%$), and a gastrointestinal stromal tumor in 1 case ($1\%$). The stage distributions by Musshoff's criteria were 71 cases ($54\%$) of stage IE, 36 cases ($27\%$) of stage $II_{1}E$, 8 cases ($6\%$) of stage $II_{2}E$, 2 cases ($2\%$) of stage IIIE, and 15 cases ($11\%$) of stage IVE. Histologic gradings by the Working Formulation in were 31 cases ($23\%$) of low grade, 96 cases ($73\%$) of intermediate grade, and 5 cases ($4\%$) of high grade. Chemotherapy-related complications occurred in 25 cases ($22\%$) while operation-related complications occurred in 6 cases ($5\%$). Seventeen patients ($13\%$) only underwent surgery, 19 ($14\%$) had chemotherapy (CTx) and/or radiotherapy (RTx) only, and 96 patients ($73\%$) received surgery and CTx and/or RTx. No substantial differences in survival were found in relation to the different histologic grades and different treatments. The five-year survival was $85\%$ in stage I or II and $47\%$ in stage III or IV (P=0.0000). Conclusion: Pathologic stage appears to be the single most important prognostic indicator. Survival differences according to treatment modalities were not statistically significant. However, the low number of patients treated with various approaches over a long period precludes a firm conclusion.

• Journal of Preventive Medicine and Public Health
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• v.24 no.2 s.34
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• pp.161-170
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• 1991

The purpose of this study is to find the tracking of blood pressure in primary school-age children. A follow-up study was conducted from 1986 to 1990 on 330 first grade children attending primary schools in Kangwha County, Kyungki-Do. Basically we employed a linear regression model with random coefficients to figure out the relation between blood pressure changes and initial blood pressure. We obtained the following results ; 1. The mean blood pressures were increased grade went up in both sexs and were generally higher in female than male except for the systolic blood pressure at first grade. The size of difference was about 0.8 mmHg in mean systolic blood pressure and 1.5 mmHg in mean diastolic blood pressure. 2. The average annual increasing rates of systolic blood pressure were 2.5 mmHg in male and 3.1 mmHg in female respectively. For the diastolic blood pressure IV the average annual increasing rates were observed to be 3.0 mmHg in male and 2.9 mmHg in female respectively. Increasing rate of systolic blood pressure was significantly higher in female than male. 3. The adjusted regression coefficient of systolic blood pressure change on initial value was -0.11 in male and -0.13 in female and that coefficient of diastolic blood pressure change on initial value was -0.01 in male and -0.11 in female. This result shows that children with higher initial blood pressure do not pick up their blood pressure faster than others with lower initial blood pressure. There is no evidence of tracking of blood pressure in children. It is essential to find the earliest age having the tracking of blood pressure and we leave it for the further study.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.6 no.5
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• pp.9-20
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• 2003

The purpose of this study is to construct a database for landscape ecological planning with evaluation and analysis of structure of biotope of city center area for the preservation of species and biotope examining Jung-gu district of Daegu Metropolitan City which is the most extremely and rapidly urbanizing area. The assumption of this study is that the biotope structure of a city center area would be different from the other city area. The results of this study were as follows. 1) The results of the biotope type classification is that there were 11 biotope type groups and 41 detailed biotopes. 2) The primary evaluation is the process for grading general value of classified biotope types, and the result of primary evaluation is that there were 5 biotope types that were greater than third grade besides the biotope type of artificial riverbank with abundant green high water level land. The first grade of biotope type have not appeared in this area, however the fifth grade of biotope type have appeared total of 19 biotope types with the biotope type of the general shopping area with scarce green fields. 3) The secondary evaluation is the process for searching biotopes which are special value, and the result of secondary evaluation is that there were 2 biotopes for la, 7 biotopes for 1b, 2 biotopes for 2a, 1 biotope for 2b and there was no biotope for 2c, and for example, la is the large area that has many magor biotope site in terms of the living space. 4) Finally. scientific method for biotope type classification, the derailed investigation plan of high value biotope and the improvement plan based on the biotope map of city center area must be continued.