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        중등 과학교사 양성 교육과정과 교수내용지식 연구 동향의 탐색

        조희형,조영신,권석민,박대식,강영진,김희경,고영자 이화여자대학교 교과교육연구소 2006 교과교육학연구 Vol.10 No.2

        과학교사의 양성을 위한 교육과정 또는 그 프로그램의 주된 목적은 바람직한 과학교사가 지녀야 할 전문적 자질을 함양시키는 데에 있다. 그러나 우리나라의 과학교사 양성을 위한 프로그램 또는 사범대학 과학교육학 계열 교육과정에는 과학교사 교육의 본성과 그의 자질에 관한 연구의 결과가 충분히 반영되어 있지 않다. 이 연구는 자질기반 과학교사 양성 교육과정의 개발 틀, 교직의 전문성과 전문성발달기준, 우리나라의 과학교사 양성 교육과정 및 프로그램에 관한 문헌을 조사·분석한 다음, 그 결과로부터 우리나라의 과학교사 양성을 위한 교육과정의 개발 방향을 도출하고 그 모형을 탐색할 목적에서 수행하였다. 이 연구에서는 과학교사 양성 교육과정을 그 과목이나 지식기반 영역에 따라 교수내용알기(PCKg), 교수구성단위(TPCs), 내용표상화(CoRe)와 교수전문경험자료(PaP-eRs), 그리고 교수상황지식(PCxK)을 단위로 이용하여 구성할 것을 강조하였다. 또한 과학교사의 전문적 자질의 함양에 목적을 둔 교육과정 또는 그 프로그램의 과학교육 및 과학과 관련된 과목으로 일반과학, 심화과학, 일반과학교육학(과학교육론, 과학 교수-학습 포함), 과학 교육과정 및 평가, 과학교육 시설과 자원, 과학교육 실습, 과학교육 연구를 제안하였다. The subjects and their contents comprising the curricula for secondary science teacher education should be selected/organized to assist pre-service teachers to gain understandings of knowledge ba ses and to help them acquire professional teaching competences. However, the nature of science teacher education has not been reflected on the Korean science teacher education programs. The research was performed to review the literature on teachers' competencies including PCK(pedagogical content knowledge), teaching as profession, curricula or programs for secondary science teacher education, and, based on the results, to suggest curricular subjects and their contents for secondary science teacher education in Korea. The research emphasizes that the subjects and their contents for secondary science teacher education should be developed by the use of PCKg(pedagogical content knowing), TPCs(teacher professional constructions), CoRe(content representation) and PaP-eRs(pedagogical and professional-experience repertoires) as constitutive units, depending on the subject areas or contents. Also suggested in this research are the knowledge bases assumed to be necessary for the development of secondary science teachers' professional qualities, which include general sciences, enrichment sciences, general science education, science education curricula and evaluation, facilities and resources for science education, teaching practices, research in science education.

      • 非晶質滋性合金薄帶의 滋歪測定에 관한 硏究

        崔熙太,愼鏞璡,徐康壽 明知大學校 産業技術硏究所 1989 産業技術硏究所論文集 Vol.8 No.-

        This paper is studied on the measurement of magnetostriction of an alloy ribbons tensile force, via measuring the response ar the double frequency of the driving field frequency. The experiments with both crystalline magnetic material,(??)-Fe and amorphous magnetic material. ??, proved that the possibility in this paper can measure magnetostriction with ease and high accuracy.

      • 連續回分式 反應器에서 有機性 廢水의 分解 Phenol이 미치는 影響

        朴永圭,姜信寬,李哲熙 嶺南大學校 環境問題硏究所 1985 環境硏究 Vol.5 No.2

        The synthetic Wastewater mixed with the sewage and phenol was treated by the sequencing batch reactor process to investigate the effect of phenol toxidity on the biodegradation. According as the phenol concentration of the raw wastewater was increased, the rate coefficient of the substrate removal, ??, by the adsorption during the fill period and the rate coefficient of the substrate biodegradation, ??, during the aeration period were decreased for phenol toxidity, but the activated energy of the substrate biodegradation, the sludge volume index and the suspended soild concentration were increased. It was found that the removal efficiency of COD was obtained more than 90% after the aeration period below 267(mg/l) of the phenol concentration, and that the removal efficiency was remarkably decreased for the toxidity at 333(mg/l) of the phenol concentration.

      • 청각장애자 운동지도를 위한 프로그램 고찰

        김정수,박정래,노일환,원충희,김흥식,강신일,박찬홍,김달영,이철원,이찬규 公州大學校스포츠科學硏究所 1987 스포츠科學硏究所論文集 Vol.- No.1

        Hearing impairement in varying degrees constitutes one of the most common disabilites affecting school aged children. Eight out of every 1,000 students under the age of twenty have significant hearing loss. Hearing disabilities range from slight to total loss of sound perception. Statistics indicate that only one out of every ten hearing impaired children will become deaf. Most motor activities can be included students may possess low levels of static and/ or dynamic balance, but the greatest majority possess normal motor and physical capabilities. All the hearing impaired youngsters should be properly assessed and given the identical testing batteries as normal children. Hearing impaired students have, essentialy, a communication handicap and suffer from inability to understand verbal instructions. All physical educators should be able to use minimal finger spelling and signing for hearing impaired students.

      • 심해 상어 간유에 의한 지방성 폐렴 2례

        권경배,권삼,고희신,최성민,김두권,신형종,강승완,김우택 東國大學校醫學硏究所 1994 東國醫學 Vol.2 No.-

        외인성 지방성 폐렴은 1925년 Laughlen에 의하여 처음으로 기술되었으며, 우리나라에서도 소아에서 다수가 보고되었다. 이 지방성 폐렴은 지방성 물질을 흡인 또는 흡입함으로서 쉽게 발생하며 임상적으로 질식, 빈호흡, 호흡곤란, 세균감염의 합병 및 성장 장애 등을 특징으로 한다. 방사선학적 소견으로는 병변의 부위는 환자의 자세와 투약 형태에 따라 드물며 광유 흡인에 의한 경우 종속 위치에서 기름을 비점적 흡인한 경우에 좀 더 광범위하게 분포를 하게되며 가장 잘 침범되는 부위는 우측 폐 하엽의 내측 분절과 심폐 분절 등이고 중력 의존적(gravity-dependent) 침윤에서부터 무기폐에 이르기까지 다양하게 나타난다. 예후는 침범된 병변의 부위, 환자의 전신상태 및 감염의 합병에 따라 다양하며 지방성 폐렴에 대한 특별한 치료가 없기 때문에 예방이 최선의 방법이다. 저자들은 심해 상어 간유 복용후 발생한 지방성 폐렴 2례를 경험하였다. 증례 1은 5개월된 남아로서 입원 당시 흉벽 함몰, 빈호흡을 호소하였고, 흉부 X선 촬영상 양폐야의 침윤을 나타내었고, 약 10개월 후에 실시한 흉부 X선 추적검사에서 병변은 여전히 남아있었다. 증례 2는 15개월된 여아로서 입원당시 잦은 상기도 감염, 발열 및 위식도 역류에 의한 성장 장애를 나타내었고, 흉부 X선 촬영상 양폐야의 침윤을 보였고, 약 9개월 후에 실시한 흉부 X선 추적검사에서 병변은 많이 호전되었다. 저자들은 심해 상어 간유에 의한 지방성 폐렴 2례를 경험하였기에 문헌고찰과 함께 보고하는 바이다. Exogenous lipoid pneumonia was first described by Laughlen in 1925 and a few cases of the pneumonia were reported during childhood in our country. It can be easily developed by the aspiration of lipoid substance through the airway. It is characterized by choke, tachypnea, chest retraction, dyspnea, superimposed bacterial infection and growth retardation. Roentgenographically the appearance is very diversed from gravity-dependent infiltration to atelectasis. The prognosis is also diversed according to the degree of involved lision, the general condition of the patients, and the superimposed infections. There's no specific treatment of lipoid peumonia. Therefore, prevention is the most important treatment. We experienced the two cases of exogenous lipoid pneumonia occurred shortly after having several capsules of the deepsea-shark-liveroil(Squalene). In the first case the 5-month-old male infant suffered from chest retraction and tachynea and the patchy and streaky infiltration of the both lung fields on the chest X-ray was revealed at the admission time. About 10 months later the lesion was remained reentgenographically. In the second case the 15-month-old female patient suffered from frequent upper respiratory infections, mild to moderate fever, and failure to thrive probably due to gastroesphageal reflusx. The chest X-ray was similar to the first case, but the lesion is nearly clear about 9 months after the discharge. We report two cases of lipoid pneumonia with brief review of relevant literature.

      • KCI등재

        Purple perilla frutescens extracts containing α-asarone inhibit inflammatory atheroma formation and promote hepatic HDL cholesterol uptake in dyslipidemic apoE-deficient mice

        Park Sin-Hye,Sim Young Eun,Kang Min-Kyung,Kim Dong Yeon,Kang Il-Jun,Lim Soon Sung,Kang Young-Hee 한국영양학회 2023 Nutrition Research and Practice Vol.17 No.6

        BACKGROUND/OBJECTIVES: Dyslipidemia causes metabolic disorders such as atherosclerosis and fatty liver syndrome due to abnormally high blood lipids. Purple perilla frutescens extract (PPE) possesses various bioactive compounds such as α-asarone, chlorogenic acid and rosmarinic acid. This study examined whether PPE and α-asarone improved dyslipidemia-associated inflammation and inhibited atheroma formation in apolipoprotein E (apoE)-deficient mice, an experimental animal model of atherosclerosis. MATERIALS/METHODS: ApoE-deficient mice were fed on high cholesterol-diet (Paigen’s diet) and orally administrated with 10–20 mg/kg PPE and α-asarone for 10 wk. RESULTS: The Paigen’s diet reduced body weight gain in apoE-deficient mice, which was not restored by PPE or α-asarone. PPE or α-asarone improved the plasma lipid profiles in Paigen’s diet-fed apoE-deficient mice, and despite a small increase in high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein (LDL)-cholesterol, and very LDL were significantly reduced. Paigen’s diet-induced systemic inflammation was reduced in PPE or α-asarone-treated apoE-deficient mice. Supplying PPE or α-asarone to mice lacking apoE suppressed aorta atherogenesis induced by atherogenic diet. PPE or α-asarone diminished aorta accumulation of CD68- and/or F4/80-positive macrophages induced by atherogenic diet in apoE-deficient mice. Treatment of apoE-deficient mice with PPE and α-asarone resulted in a significant decrease in plasma cholesteryl ester transfer protein level and an increase in lecithin:cholesterol acyltransferase reduced by supply of Paigen’s diet. Supplementation of PPE and α-asarone enhanced the transcription of hepatic apoA1 and SR-B1 reduced by Paigen’s diet in apoE-deficient mice. CONCLUSIONS: α-Asarone in PPE inhibited inflammation-associated atheroma formation and promoted hepatic HDL-C trafficking in dyslipidemic mice.

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      • KCI등재
      • KCI등재

        Ellagic acid, a functional food component, ameliorates functionality of reverse cholesterol transport in murine model of atherosclerosis

        Park Sin-Hye,Kang Min-Kyung,Kim Dong Yeon,Lim Soon Sung,Kang Il-Jun,Kang Young-Hee 한국영양학회 2024 Nutrition Research and Practice Vol.18 No.2

        BACKGROUND/OBJECTIVES High levels of plasma low-density lipoprotein (LDL) cholesterol are an important determinant of atherosclerotic lesion formation. The disruption of cholesterol efflux or reverse cholesterol transport (RCT) in peripheral tissues and macrophages may promote atherogenesis. The aim of the current study was to examine whether bioactive ellagic acid, a functional food component, improved RCT functionality and high-density lipoprotein (HDL) function in diet-induced atherogenesis of apolipoproteins E (apoE) knockout (KO) mice. MATERIALS/METHODS Wild type mice and apoE KO mice were fed a high-cholesterol Paigen diet for 10 weeks to induce hypercholesterolemia and atherosclerosis, and concomitantly received 10 mg/kg ellagic acid via gavage. RESULTS Supplying ellagic acid enhanced induction of apoE and ATP-binding cassette (ABC) transporter G1 in oxidized LDL-exposed macrophages, facilitating cholesterol efflux associated with RCT. Oral administration of ellagic acid to apoE KO mice fed on Paigen diet improved hypercholesterolemia with reduced atherogenic index. This compound enhanced the expression of ABC transporters in peritoneal macrophages isolated from apoE KO mice fed on Paigen diet, indicating increased cholesterol efflux. Plasma levels of cholesterol ester transport protein and phospholipid transport protein involved in RCT were elevated in mice lack of apoE gene, which was substantially reduced by supplementing ellagic acid to Paigen diet-fed mice. In addition, ellagic acid attenuated hepatic lipid accumulation in apoE KO mice, evidenced by staining of hematoxylin and eosin and oil red O. Furthermore, the supplementation of 10 mg/kg ellagic acid favorably influenced the transcriptional levels of hepatic LDL receptor and scavenger receptor-B1 in Paigen diet-fed apoE KO mice. CONCLUSION Ellagic acid may be an athero-protective dietary compound encumbering diet-induced atherogenesis though improving the RCT functionality. BACKGROUND/OBJECTIVES High levels of plasma low-density lipoprotein (LDL) cholesterol are an important determinant of atherosclerotic lesion formation. The disruption of cholesterol efflux or reverse cholesterol transport (RCT) in peripheral tissues and macrophages may promote atherogenesis. The aim of the current study was to examine whether bioactive ellagic acid, a functional food component, improved RCT functionality and high-density lipoprotein (HDL) function in diet-induced atherogenesis of apolipoproteins E (apoE) knockout (KO) mice. MATERIALS/METHODS Wild type mice and apoE KO mice were fed a high-cholesterol Paigen diet for 10 weeks to induce hypercholesterolemia and atherosclerosis, and concomitantly received 10 mg/kg ellagic acid via gavage. RESULTS Supplying ellagic acid enhanced induction of apoE and ATP-binding cassette (ABC) transporter G1 in oxidized LDL-exposed macrophages, facilitating cholesterol efflux associated with RCT. Oral administration of ellagic acid to apoE KO mice fed on Paigen diet improved hypercholesterolemia with reduced atherogenic index. This compound enhanced the expression of ABC transporters in peritoneal macrophages isolated from apoE KO mice fed on Paigen diet, indicating increased cholesterol efflux. Plasma levels of cholesterol ester transport protein and phospholipid transport protein involved in RCT were elevated in mice lack of apoE gene, which was substantially reduced by supplementing ellagic acid to Paigen diet-fed mice. In addition, ellagic acid attenuated hepatic lipid accumulation in apoE KO mice, evidenced by staining of hematoxylin and eosin and oil red O. Furthermore, the supplementation of 10 mg/kg ellagic acid favorably influenced the transcriptional levels of hepatic LDL receptor and scavenger receptor-B1 in Paigen diet-fed apoE KO mice. CONCLUSION Ellagic acid may be an athero-protective dietary compound encumbering diet-induced atherogenesis though improving the RCT functionality.

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