• KSII Transactions on Internet and Information Systems (TIIS)
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• 제5권1호
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• pp.211-227
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• 2011

Content Based Image Retrieval (CBIR) is an approach for retrieving similar images from an image database based on automatically-derived image features. The quality of a retrieval system depends on the features used to describe image content. In this paper, we propose an image clustering system that takes a database of images as input and clusters them using k-means clustering algorithm taking into consideration color, texture and shape features. Experimental results show that the combination of the three features brings about higher values of accuracy and precision.

• International Journal of Contents
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• 제17권2호
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• pp.9-19
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• 2021

The purpose of this survey-based study was to investigate high school students' perceptions of mathematics teachers' implementation of Universal Design for Learning (UDL)-based practices and technology in their mathematics classes in 2017. A total of 303 high school students in South Korea participated in this online survey on teachers' use of technology for instructional practices, the frequency of technology tool use, and the meeting of UDL guidelines in mathematics instruction. According to frequency analysis, high school students generally perceived their teachers' mathematics teaching as somewhat positive in providing multiple means of representation, action and expression, and engagement. However, mathematics teachers' implementation of technology tools in their mathematics classes was generally limited. This study indicated significant and positive relationships between variables regarding the use of technology tools and teachers' efforts to follow the UDL guidelines. Applying the Chi-squared test, we further examined how each survey result differed according to high school students' academic achievements and grade levels.

• Clinical and Experimental Pediatrics
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• 제54권3호
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• pp.128-132
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• 2011

Purpose: Cisplatin-based chemotherapy has been commonly used for the treatment of intracranial germ cell tumors (IC-GCTs). However, this treatment exhibits some adverse effects such as renal problems and hearing difficulty. Carboplatin-based chemotherapy was administered to pediatric patients with IC-GCTs from August 2004 at the Samsung Medical Center. In this study, we assessed the responses and adverse effects of carboplatin-based chemotherapy in pediatric IC-GCTs patients according to the risk group, and compared the results with those of the previous cisplatin-based chemotherapy. Methods: We examined 35 patients (27 men and 8 women) diagnosed with IC-GCTs between August 2004 and April 2008 and received risk-adapted carboplatin-based chemotherapy at the Samsung Medical Center. Patients were divided into either low-risk (LR) or high-risk (HR) groups and a retrospective analysis was performed using information from the medical records. Results: Although hematological complications were common, hearing difficulties or grade 3 or 4 creatinine level elevation were not observed in patients who underwent carboplatin-based chemotherapy. The frequency of febrile neutropenia did not differ between the risk groups. The overall survival was 100% and event-free survival (EFS) was 95.7%. The EFS rate was 100% in the LR group and 90% in the HR group, respectively. Conclusion: Despite their common occurrence in high-risk patients, no lethal hematological complications were associated with carboplatin-based treatment. The current carboplatin-based chemotherapy protocol is safe and effective for the treatment of pediatric patients with IC-GCTs.

• 대한감각통합치료학회지
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• 제20권2호
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• pp.46-55
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• 2022

목적 : 본 연구의 목적은 학교 작업치료사의 근무 경험에 대한 의미를 탐색하는 것이다. 연구방법 : 본 연구는 현상학적 연구이다. 참여자는 학교 작업치료사 7명으로 모두 여성이고, 평균 근무경력은 5년이었다. 이들을 대상으로 학교 작업치료사로서의 근무 경험에 관하여 일대일 인터뷰를 진행하였고, 부가적인 인터뷰 내용 확인은 이메일을 활용하였다. 인터뷰 내용은 대상자의 동의를 얻어 녹음하였고, 연구자가 녹음을 여러 번 듣고 전사하여 Colaizzi 연구 방법에 따라 분석하였다. 결과 : 인터뷰 내용을 분석하여 2개의 주제와 10개의 하위 주제가 도출되었다. 주제로는 어려움과 희망이 도출되었다. 어려움에는 행정업무에 대한 부담, 물리적 환경 제약, 교사 또는 교직원의 인식 부족, 불안정한 고용, 학교에 근무하는 '의료기사' 작업치료사가 있었고, 희망에는 아동에 대한 사명감, 같은 목표를 가진 팀원, 학교 작업치료를 원하는 아동들, 교사의 만족, 작업치료발전에 대한 책임감이라는 하위 주제가 있었다. 결론 : 특수교육대상자에게 질적으로 향상된 학교 작업치료를 제공하기 위하여 학교 작업치료에 대한 제도적 개선과 정책적 지원이 마련되어야 한다.

• 한국수학교육학회지시리즈A:수학교육
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• 제59권4호
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• pp.295-312
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• 2020

본 연구는 중등학교 수학교사의 평가에 대한 인식을 조사하고 비교하기 위하여 진행되었다. 이를 위해 인천지역에 근무하는 중학교 188명, 고등학교 125명의 수학교사로부터 평가에 관한 6가지 영역과 과정 중심 평가에 대한 일반적인 인식에 대하여 설문조사를 실시하였다. 연구 자료는 중요도-수행도 분석기법(IPA)을 사용하여 학교급별, 경력별, 학교규모별로 비교 분석하였다. 주요 연구 결과로 대부분의 영역에서 중학교 수학교사들이 고등학교에 비해 중요도와 수행도 모두 높게 나타났다. 경력별로는 경력이 높을수록 높은 중요도-높은 수행도, 낮은 중요도-낮은 수행도가 많이 나타나고. 학교규모가 클수록 낮은 중요도-높은 수행도에 다양한 의견이 나타났다.

• 대한간호학회지
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• 제35권3호
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• pp.611-620
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• 2005

Purpose: The purpose of this study was to identify the effects of a school-based obesity control program based on behavior modification and self-efficacy for obese elementary school children. The program was composed of strategies to modify diet and exercise habits and to increase self-efficacy. Method: The subjects were 57 obese children (experimental group = 28, control group = 29) whose Rohler index was 150 and over. The program was implemented once a week for 12 weeks from September 16 to December 12, 2003. The data was analyzed by Fisher's exact probability, $x^2$-test, t-test, and Wilcoxon Rank Sum test. Result: The Rohler index, fat mass and lean body mass of the experimental group positively changed after the intervention more than those of the control group, but there was a significant difference in the Rohler index only (t=2.06, p=.045). In addition, obesity stress significantly decreased (z=-2.86, p=.047) and dietary self-efficacy significantly increased (t=2.35, p=.023) in the experimental group than those of the control group. Conclusion: This study supports that a school-based obesity control program based on behavior modification and self-efficacy can be effective in decreasing obesity stress and increasing dietary self-efficacy. Parents, school nurses and the other support groups should be encouraged to participate from the planning stage of the program to be effective in weight control of obese elementary school children. Also school-based program should be implemented as an essential course in the curriculum, not as an elective.

• Human Ecology Research
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• 제56권3호
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• pp.283-300
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• 2018

This study examined the effects of a practical problem based home economics instruction using multiple intelligences teaching and learning methods for the prevention school violence by high school students'. The contents of this study are as follow. 1) Develop the practical problem-based instruction using multiple intelligence and teaching and learning strategies for each protective factor both in teaching method aspects and learning content aspects during the 29-period of lesson plans. 2) Examine the effects of the instruction in the changes of pre- and post- impulsivity and aggression, self-esteem, empathy and attitudes to school violence after implementing home economics lesson plans. 3) Evaluate the instruction. The subjects of this study were 288 first grade students (124 male and 164 female students). The study utilizes a quasi-experimental pre-post design. The effect of the instruction by the paired t-test results showed that the aggression and impulsivity by the learners had been lowered; however, empathy and self-esteem increased; in addition, learners' attitudes toward school violence had changed positively. In conclusion, self-esteem in school as sub-variables of self-esteem increased; however, there was no statistically significant difference.

• 한국디자인학회:학술대회논문집
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• 한국디자인학회 2004년도 춘계 학술발표대회 논문집
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• pp.352-353
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• 2004

• 한국통신학회:학술대회논문집
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• 한국통신학회 2004년도 추계종합학술대회 논문 초록집
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• pp.300-300
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• 2004

• 한국학교보건학회지
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• 제17권2호
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• pp.127-150
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• 2004

Objectives: The purpose of this study is to provide a basic structure for the establishment of the direction of school health programs, an overview of the historical changes of school health programs and their results, and a conceptual framework on school health programs. Methods: The data analysis has been done using a statistical almanac, relevant laws and regulations, operation handbook of the program, theses, reports, records of public hearings, and other reports as a technical research primarily based on evidence. The methodology of this research classifies the development and growth transition of school health programs during a historical period through the investigation of regulations, organization, manpower, and its program via its development process and to provide a basic tool to design a solid school health policy. Results: A The growth and development of school health programs The development of school health programs was classified into three different periods including the forthcoming period (1945~1967), the completion period (1967~1993), and the actualization period based on the establishment of legislation for School Health Law, other relevant legislation, and the contents of school health programs (1993~present). B. Policy direction of school health programs School health programs have reestablished their goals and range based on basic direction, and developed the W1it model of information structure for school health program management and its basic structure. Finally, the stepwise support system through the building of the school health support center is recommended. (1) The basic direction of school health programs has proposed 7 basic goals to reestablish the policy direction of health improvement based on total health. (2) The W1it model of information system and the school health information system for school health program management has been developed to utilize positive management. (3) School health policy through the study of the health laws and systems has been developed. The necessity of school health support center for the policy support, functional support and operation support has also been proposed. Conclusions: It is necessary to build a school health support center that consists of health professionals in charge of policy support, functional support, and program support of school health programs in order to realize and develop new policy.