인터넷 홈페이지를 활용한 우리 나라와 일본 중학교의 과학교육 실태 비교 연구

윤치원,김종균,박영철,김현섭 공주대학교 사범대학 과학교육연구소 1999 과학교육연구 Vol.30 No.1

최근 인터넷의 보급이 보편화되면서 교육현장에서도 인터넷을 활용한 교육이 활발히 시도되고 있다. 이것은 인터넷의 장점을 교육현장에 이용하면 학습지도에 필요한 정보를 용이하게 입수할 수 있고 개인이나 제도교육에 관한 정보를 널리 공유할 수 있으므로 교육활동의 질적 개선을 기대할 수 있기 때문이다. 종래는 지리적인 제약 때문에 개인이 수입할 수 있는 정보에는 한계가 있었으나 인터넷을 활용하면 제한된 정보나 개인의 교류 범위를 넘어선 전국적, 세계적인 정보의 수집 수단으로 활용할 수 있다. 이러한 관점에서 본 연구는 인터넷상에 올라와 있는 우리 나라 중학교 홈페이지와 우리와 교육환경이 유사한 일본 중학교 홈페이지의 구성 내용을 비교하고 특히 인터넷을 활용한 과학교육 실태를 비교·분석하여 인터넷을 과학교육 매체로 활용하는 방안을 찾는데 목적을 두고 수행하였다. 본 연구의 대상 학교로는 우리 나라의 경우 인터넷상에 검색이 가능한 211개 중학교 모두를, 일본의 경우는 검색 가능한 1022개 중학교 중 200개 학교를 표본으로 추출하였다. 이어서 학교의 홈페이지 구성내용을 `학교 일반정보' `정보공유' `교수 학습정보' 기타정보' 등 4개 분야로 나누어 비교 분석하였는데 특히, `교수 학습정보' 분야 중 과학교과 자료와 연결된 사이트 그리고 학생 탐구자료 내용을 집중적으로 비교·분석하였다. 그 결과 우리 나라 중학교의 홈페이지 개설 학교 수는 급격히 증가하였으나 과학교육에 관련된 내용은 매우 빈약하였고, 있는 내용도 대부분 외국 자료를 연결하여 놓았기 때문에 중학교 학생들이 이용하기에는 많은 어려움이 있을 것으로 생각되었다. 일본의 경우는 과학교육에 활용할 수 잇는 자료가 비교적 풍부하고 연결된 사이트도 대부분 자국어로 되어 있었으며, 그 내용도 학생의 관찰, 조사, 실습 등 학생의 탐구활동 내용이 소개되고 있어 인터넷을 활용한 과학교육에 유용할 것으로 생각되었으며, 이것은 우리 나라에서 인터넷을 활용한 과학과 교수 학습 활동에 유용한 과학자료를 개발하는데 좋은 참고 자료가 될 것으로 생각되었다. In recent years, and increased number of junior high schools are attempting to `utilize the internet as an instruction aid'. The internet provides easy access to wide ranges of scientific information which facilitate teaching and learning activities. Especially in the areas of shared research and general information and personal communication. Prior to the existence of the internet, people were limited by geographical locations; however, modern internet use is international and information can be shared throughout the world. From this point of view, this study was compared the line up of Korean and Japanese junior high school homepages. This comparison is valid because the two countries educational systems are grossly similar. We proposed analysis of science education in the homepage on the internet to find the method of science education. In Korea the objective schools of this study are all 211 junior high schools of which was able to search to use internet and in the case of Japan 2000 junior highschools as samples of which 1022 junior highschools that was able to search to use internet. Four main areas of the study were examined; general school information, the supply of information, information for teaching and learning and other links. Elements of homepage were classified into 4 groups based on these divisions. Informations from Korea and Japan contained in the teaching and learning site was subdivided into scientific curriculum and student investigational material. These subdivisions were analyzed and the differences between the two countries were as follows. Although the Korean junior high school homepages were rapidly increasing they were lacking in quality. It was also evident that many linking sites are written in foreign languages other than Korean. Without a translative program to interpret these, Korean students would be unable to take advantage of them. Japan had a greater quality of material used for science education Linking sites are written in the Japanese Languages. Japan appears to have an intensified focus on the useful development of scientific material and science education through the use of the internet. This enhances studied investigation, activities of observation, research, and investigation. The overall practice and performance of the Japanese studies is greatly enhanced through their ability to easily access the internet.

공유버스 멀티프로세서시스템을 위한 버스 시뮬레이터의 설계

윤현진,박길철,황대준 成均館大學校 科學技術硏究所 1994 論文集 Vol.45 No.2

In this paper, we develop the simulation environment for evaluating the performance of multiprocessor systems using Futurebus^+ as shared bus with various configurations. The environment is constructed into three stages. The first is devoted to the preprocessing stage in which the parallel work- loads, multiple threads, are generated from single- thread codes traced on the benchmarks. The second stage includes the engine of the bus simulator. The results from the simulation include cache hit ratio, processor utilization and bus congestion ratio according to changes of the number of processors, and cache coherency protocols. Based on the analysis of the simulation results, we noticed that the processor utilization and the bus congestion ratio are heavily depend on cache hit ratio. The write-broadcast protocol is shown as the most effective scheme in comparison with other cache coherence protocols experimented.

사업장 근로자의 건강위험 평가도구 개발

홍윤철,임현술,하은희,정규철,조희숙,박혜숙,이용애 大韓産業醫學會 1998 대한직업환경의학회지 Vol.10 No.4

Health Risk Appraisal(HRA) is usually defined as a process by which we expect of individual's chances of death or acquiring specific diseases within a defined period of time. The concept of worksite as an area of health maintenance and promotion is newly developing. Our movement for health promotion of employees has been increasingly known in the worksite. The aim of this study is to develop health risk appraisal tools about health promotion at the worksite for employees. We performed this study by two steps; one step was to develop a HRA questionnaire of worksites in Korea, another was to evaluate the reliability of the questionnaire. For developing HRA questionnaire, we reviewed scientific examples at first, and then weighted the score by delphi. To evaluate the reliability of developed questionnaire, we carried out survey by test-retest method. A total of 131 employees completed HRA questionnaire on two times. The results are as follows. The total score of health risk in unhealthy workers was higher than that of healthy workers. The range of test-retest reliability of responses to the questionnaire was 0.57-0.94. Therefore it seems that this questionnaire was very suitable to assess the health behavior of workers. In conclusion, the developed HRA questionnaire can be used as a tool for evaluating health behavior and for providing health counseling materials.

양극성 정동장애와 혈청 Inositol-1-phosphatase 활성도 변화

조현주,김영철,우행원,연규월,조기승 대한생물치료정신의학회 1998 생물치료정신의학 Vol.4 No.2

Objects : Several lines of possibilites have been oroposed about the etiology of bipolar attective disorder in biological, genetic and psychosocial aspect. The purpose of this study is to inspect the etiology of bipolar affective disorder in biological aspect by measuring the changes of serum inositol-1-phosphatase activity and investing a causal relationship between clinical symptoms and serum inositol-1-phosphatase activities in patients with bipolar affective disorder. Methods : The subjects were 18 inpatients who met DSM-IV diagnostic criteria for bipolar I affective disorder, manic episode and 15 normal controls. Inositol-1-phosphatase activities were measured in serum by using spectrophotometer. Clinical symptoms of patients were assessed by YMRS at admission day and after 2 weeks lithium treatment. Results : 1) Inositol-1-phosphatase activities of the patients were increased to about 2 times as compared with those of normal controls. And the activity levels were decreased gradually to the normal at 14 days. 2) Young's Mania Rating Scale(YMRS) scores were decreased significantly by lithium treatment. 3) Statistical significance could not be found between the change of YMRS scores and the levels of inositol-1-phosphatase activity. Conclusion : In this study, statistical significance could not be found between clinical improvement and inositol-1-phosphatase activities, but the fact that lithium treatment improve the clinical manifestation shown by YMRS score changes, and reverse the increased inositol-1-phosphatase activities suggests the strong association between pathophysiology of bipolar affective disorders and inositide metabolism.

이차성 기질화 폐렴이 동반된 피부근염 1예

박철연,권정석,정진욱,이충기,현대성,최정윤 영남대학교 의과대학 2008 Yeungnam University Journal of Medicine Vol.25 No.2

Dermatomyositis is characterized by progressive, symmetric, Proximal muscle weakness and a nonsuppurative inflammatory myopathy of unknown etiology involving predominantly skeletal muscles. It is also characterized by typical skin lesions. Interstitial lung disease has a poor prognosis when it is associated with dermatomyositis. Organizing pneumonia is a disease in which granulation tissue fills the lumina of terminal and respiratory bronchioles and extends into the distal airspaces. The cryptogenic nature of the process is appreciated in that organizing pneumonia patterns of injury can be seen in secondary forms of the disease (secondary organizing pneumonia). Organizin pneumonia has been reported to occur in 5~10% in dermatomyositis-polymyositis patients Anti-histidyl tRNA synthetase antibody (anti-Jo-1) is a Predictive disease marker that is reported to occur in up to 70% of patients. We describe a 49-year-old male dermatomyosits patient who presented with organizing pneumonia and was found to have negative anti-Jo-1 antibody.

겸상적혈구 혈증에 의한 동통성 발작 1례

김효철,배택환,정윤석,김현수,조준필,김준식,곽연식 대한응급의학회 1995 대한응급의학회지 Vol.6 No.1

The sickle cell disease are a group of hemoglobin disorders characterized by red cells that undergo sickle shape transformation when they are deoxygenated. Sickle cell disease is transmit-ted as an autosomal recessive trait. This unusual property, due to the polymerization of sickle hemoglobin results in anemia and vasoocclusive complication. 1) The most clinically significant of these disease are sickle cell anemia, sickle cell hemoglobin C disease, and sickle cell beta thalassemia. Symptoms of pallor, fever, abdominal and joint pain, enlargement of the liver and spleen, swelling of hands and feet first appear near the latter part of the first year of life. Intravascular sickling affects all organs. For clinical and therapeutic purposes, exacerbations may be classified as vasoocclusive or pain, aplastic, hemolytic or sequestration crisis. we experienced a 22 year old female patient who suffered severe multiple joint pain and back pain thought to be caused by vasoocclussive phenomena.

사업장 근로자의 건강위험 평가도구 개발

정규철,이용애,홍윤철,조희숙,박혜숙,임현술,하은희 이화여자대학교 환경문제연구소 1998 이화환경연구 Vol.2 No.-

Health Risk Appraisal(HRA) is usually defined as a process by which we expect of individual's chances of acquiring specific diseases within a defined period of time. The concept of worksite as an area of health maintenance and promotion is newly developing. Our movement for health promotion of employees has been increasingly known in the worksite. The aim of this study is to develop health risk appraisal tools about health promotion at the worksite for employees. We performed this study by two steps: one step was to develop a HRA questionnaire of worksites in Korea, another was to evaluate the reliability of the questionnaire. For developing HRA questionnaire, we reviewed scientific examples at first, and then weighted the score by delphi. To evaluate the reliability of developed questionnaire, we carried out survey by test-retest method. A total of 131 employees completed HRA questionnaire on two times. The results are as follows. The total score of health risk in unhealthy workers was higher than that of healthy workers. The range of test-retest reliability of responses to the questionnaire was 0.57-0.94. Therefore it seems that this questionnaire was very suitable to assess the health behavior of workers. In conclusion, the developed HRA questionnaire can be used as a tool for evaluating health behavior and for providing health counseling materials.

치아 맹출전 시행한 기관 삽관이 유치열기에 미치는 영향에 대한 증례보고

신윤경,Hyun, Hong-Keun,김영재,김정욱,장기택,이상훈,김종철,한세현 大韓小兒齒科學會 2008 大韓小兒齒科學會誌 Vol.35 No.3

유치 맹출전에 치조융기에 가해진 외상은 유치의 맹출 지연 및 형태이상,치배의 변위 등을 일으킬 수 있으며 심한 경우 구개의 흠 형성,절치의 결함 및 후천성 구개열 등을 야기할 수 있다. 본 증례는 치아가 맹출하기 전에 수차례의 기관 삽관을 시행한 병력이 있는 심한 저체중아에서 맹출지연,형태이상,법랑질 저형성,영구치 치배 등의 변위가 관찰되어 이를 보고하는 바이다. Delayed eruption and abnormal morphology of the primary incisors following intubation may be due to follicular displacement and localized trauma caused by the process of intubation. Result of such damage included palatal groove formation, defective incisors and acquired clefts. This clinical report presents effect of intubation on the primary dentition of premature low-birth-weight children prior to tooth eruption.

Single Median Maxillary Central Incisor(SMMCI) 환아의 증례보고

신윤경,김영재,김정욱,장기택,이상훈,한세현,김종철 大韓小兒齒科學會 2007 大韓小兒齒科學會誌 Vol.34 No.4

Anatomic abnormalities of teeth development include the presence of a single maxillary central incisor at midline instead of two central incisors. The incidence of cases with a single maxillary central incisor is approximately 1 in every 50,000 live births. single median maxillary central incisor(SMMCI) may be a integral manifestation of anyone of a number of syndromes. It has been reported an association with several midline disorders which have varied in severity. A SMMCI has also been reported as an isolated finding. But in some cases, it has been considered as an incomplete expression of autosomal dominant holoprosencephaly. So any patient who appears for treatment with a SMMCI should be referred for a detailed medical examination to exclude other associated systemic abnormalities and for mutation analysis to facilitate correct diagnosis and the provision of appropriate genetic counseling. Early orthodontic treatment is needed to minimalize emotional trauma of child. This case report was about three patients with a SMMCI as isolated finding. The purpose of these case reports was to present cases of single maxillary central incisor not associated with other disorders. Single Median Maxillary Central Incisor(SMMCI)는 상악 중절치 형성부전으로 하나의 상악 중절치가 정중앙에 위치하는 치아 발달의 해부학적 이상을 의미한다. 50,000명 중에 1명 꼴로 발생할 정도로 아주 드물며 각종 증후군 및 정중선 이형성을 보이는 발달장애와 연관되어 나타나는 것으로 보고되고 있다. SMMCI는 다른 이상과 연계되지 않고 독립적으로 나타날 수도 있으나 상염색체 우성유전인 전전뇌증(holoprosencephaly)의 경미한 발현일 가능성이 있으므로 유전자 상담이 필요하다. 또 특징적인 안모 및 구강 상태를 보이므로 환아의 바람직한 신체적,정서적 발달을 위해 조기에 교정적 접근이 필요하다. 본 증례는 다른 이상 소견을 보이지 않는 세 명의 SMMCI 환아의 증례를 보고하는 바 이다.

쌀겨 분진의 연소 및 폭발 위험성에 관한 연구

이창우,현성호,이한철,허윤행 대한위생학회 1999 대한환경위생공학회지 Vol.14 No.4

We had investigated combustion properties of rice bran dusts. Decomposition of rice bran dusts with temperature were investigated using DSC and the weight loss according to temperature using TGA in order to find the thermal hazard of rice bran dusts, and the properties of dust explosion in variation of their dust with the same particle size. Using Hartman's dust explosion apparatus which estimate dust explosion by electric ignition after making dust disperse by compressed air, dust explosion experiments have been conducted by varying concentration and size of rice bran dust. According to the results for thermodynamic stability of rice bran dust, there are little change of initiation temperature of heat generation and heating value for used particle size. But initiation temperature of heat generation decreased with high heating rate whereas decomposition heat increased with particle size. Average maximum explosion pressure was 10kgf/㎠ for 60/70 mesh and 1.5mg/㎤ dust concentration.