사회적 상호작용을 강조한 과학 탐구실험의 효과

김지영,성숙경,박종윤,최병순 한국과학교육학회 2002 한국과학교육학회지 Vol.22 No.4

사회적 상호작용을 강조한 과학탐구실험이 학생들의 학업성취와 과학탐구능력 및 학습동기에 미치는 효과에 대해 연구하였으며, 탐구실험 수업이 소집단의 구성방식에 따라 어떠한 차이를 나타내는지 알아보기 위해 인지수준이 동질인 집단과 이질인 집단의 효과를 비교하였다. 이를 위해 중학교 2학년 255명을 통제집단과 실험집단으로 나누어, 실험집단에는 사회적 상호작용을 강조한 과학탐구실험 수업을, 통제집단에는 전통적인 실험 수업을 1년간 적용한 후 과학학업성취도, 과학탐구능력, 학습동기 검사를 실시하였다. 사회적 상호작용을 강조한 탐구실험은 이끌어내기, 친숙해지기, 구성하기, 확장하기의 4단계로 구성되어 있으며, 관찰 현상을 학습과 연관시키고 실험을 설계하며 결론을 이끌어내는 과정을 통해 동료 및 교사와 상호작용을 할 수 있도록 구성되어 있다. 연구 결과 사회적 상호작용을 강조한 과학탐구실험은 학생들의 학업성취와 과학탐구능력 및 학습동기에서 유의미한 효과가 있었다. 모든 인지수준의 학생들에게 효과가 나타난 것은 아니었으나 대분분의 인지 수준에서 학업성취의 효과가 크게 나타났으며, 학업성취에 비해 과학탐구능력의 향상정도가 낮았다. 소집단 구성에 따른 효과에서는 동질집단이 이질집단에 비해 성취도와 학습동기에서 유의미한 향상이 있었다. 이러한 결과는 과학탐구실험에서 상호작용이 중요하며, 상호작용이 학생들의 성취도와 탐구능력 향상에 긍정적 영향이 있음을 시사한다. This study investigated the effects of scientific inquiry experiments emphasizing social interaction on the academic achievement, the ability for science inquiry and the learning motivation of the students. To examine the differences among the classes of scientific inquiry experiments according to the way of organizing small groups, the effects of the group in homogeneous cognitive level and the group in heterogeneous cognitive level were compared. 255 7th-graders were grouped into the treatment group and the control group. After the treatment group received the scientific inquiry experimental lessons emphasizing social interaction and the control group received traditional lessons for one year, academic achievement, ability for scientific inquiry, and learning motivation were examined. These inquiry experiments were composed of four steps which are eliciting, familiarizing, constructing and bridging. And students can interact with peers and teachers through the process of relating observed phenomena to concept, constructing experiment procedure, and eliciting results. The ANCOVA results revealed that there were significant effects of science inquiry experiments emphasizing social interaction on the academic achievement, the ability for scientific inquiry and the learning motivation of the students. The significant academic achievement of the students in most of the cognitive levels, if not all, was found and degree of improvement in the ability for scientific inquiry was lower than that in the academic achieve3ment. Concerning the effects according to the way of organizing small groups, there were significant improvement in academic achievement and learning motivation of the group in homogeneous cognitive level compared to the group in heterogeneous cognitive level. These results indicate that social interaction in learning is important and it has positive influences on the improvement in academic achievement and ability for scientific inquiry of students.

주폐자충 폐렴으로 발현된 Felty 증후군 1예

김성호,남대근,문재현,김지홍,김보석,안진광,문태건,안병재,김성일 全南大醫大 2001 전남의대학술지 Vol.37 No.3

재가 의료보호대상 정신질환자의 특성에 대한 조사 : 서울특별시 7개 보건소 등록 환자를 대상으로

이주훈,오석배,박종원,지성학,장화순 용인정신의학연구소 1994 용인정신의학보 Vol.1 No.2

소뇌 출혈을 동반한 침입성 부비동 아스페르길루스증 1예

양현덕,박성욱,손일홍,이지용,석승한,조광호,이성수 圓光大學校 醫科學硏究所 2003 圓光醫科學 Vol.18 No.2

고온 플라즈마를 이용한 폐기물 용융 소각기술 개발

엄태인,채종성,성지선,전영남,황순모,김영석 한밭대학교 생산기반기술연구소 2004 생산기반기술연구소 논문집 Vol.5 No.1

A high proportion of hazardous (PVC, asbestos, chlorinated solvents) and infection wastes are treated in incinerators, the high temperature and high energy characteristics of plasma may be employed to convert waste materials into inert small volume products and combustible gases, plasma torch melting(PTM) is one of the most widely used tool for the vitrification of wastes. The ash product generated is of low bulk density and may also contain leachable quantities of toxic heavy metal and organic species. Plasma processing is able to treat these ashes, destroying any contained polyaromatic hydrocarbons components. Also we presented a steady three-dimensional model for a plasma melting furnace optimum designed in this study with RNG k-ε model, and its use in characterizing the structure of the flow field, temperature field and reaction field. Among various types of plasma torches, non-transferred hollow cathode type torch is best suited due to its long lifetime, easy power controllability and steady power output. Development of a plasma torch showed the lifetime longer than 300 hours and efficiency better than 65% And the various factors(electrode diameter, cooling flow rate and temperature and gas flow rate affecting the thermal efficiency of the torch) were experimentally evaluated.

간 이식 환자에서 발생한 파종성 Scedosporium apiospermum 감염 1예

박현구,최성호,강호석,송주형,정지훈,소민욱,최상호,김양수,우준희 대한감염학회 2006 감염과 화학요법 Vol.38 No.5

저자들은 다발성 뇌 농양을 동반한 치명적인 파종성 S. apiospermum 감염이 발생한 간 이식 환자를 경험하였다. 본 증례의 환자는 voriconazole로 치료하는 호전경과를 보이다가 진균성 뇌 동맥류 파열로 사망하였다. S. apio-spermum은 비교적 드문 진균으로 병리학적으로 Aspergillus spp.와 매우 유사하고 amphotericin B에 내성을 나타내므로 진단과 치료가 적절하게 이루어지지 못할 가능성이 많고 면역 기능 저하 환자에서 혈행성 전파를 통한 파종성 감염이 용이하게 발생하므로 높은 사망률을 나타낸다. 이식 환자를 비롯한 면역 기능 저하 환자에서 진균감염이 의심될 때 S. apiospermum과 같은 드문 진균에 의한 감염증도 감별진단에 포함해야 하겠다. Sedosporium apiospermum is a saprophytic fungus commonly found in soil and polluted water. This organism is known as a cause of mycetoma, which may occur in immunocompetent hosts following trauma. However, in immunocompromised patients, S. apiospermum can also cause life-threatening invasive disease, including central nervous system infection or disseminated infection. We report a fatal case of disseminated S. apiospermum infection in a 46-year-old woman after liver transplantation. Eight days postoperatively, she developed pneumonia, followed by altered mentality in the 15 days. A head CT demonstrated multiple brain abscesses. Sputum and stereotactic-aspirated brain abscess culture yielded S. apiospermum. Despite treatment with voriconazole, the patient died of intracranial hemorrhage.

Hyaluronic Acid Coating on Hydrophobic Tracheal Scaffold Enhances Mesenchymal Stem Cell Adhesion and Tracheal Regeneration

Choi Ji Suk,Lee Min Sang,Kim Jooyoung,Eom Min Rye,Jeong Eun Ji,Lee Minhyung,Park Su A,Jeong Ji Hoon,Kwon Seong Keun 한국조직공학과 재생의학회 2021 조직공학과 재생의학 Vol.18 No.2

BACKGROUND: Long segmental tracheal repair is challenging in regenerative medicine due to low adhesion of stem cells to tracheal scaffolds. Optimal transplantation of stem cells for tracheal defects has not been established. We evaluated the role of hyaluronic acid (HA) coating of tracheal scaffolds in mesenchymal stem cell (MSC) adhesion and tracheal regeneration in a rabbit model. METHODS: A three-dimensionally printed tubular tracheal prosthesis was incubated with dopa-HA-fluorescein isothiocyanate in phosphate-buffered saline for 2 days. MSCs were incubated with an HA-coated scaffold, and their adhesion was evaluated by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay. HA coated scaffolds with or without MSC seeding were transplanted at the circumferential tracheal defect in rabbits, and survival, rigid bronchoscopy, radiologic findings, and histologic findings were compared between the two groups. RESULTS: HA-coated scaffolds showed better MSC adhesion than non-coated scaffolds. The HA-coated scaffolds with MSC group showed a wider airway and greater mucosal regeneration compared to the HA-coated scaffolds without MSC group. CONCLUSION: HA coating of scaffolds can promote MSC adhesion and tracheal regeneration. BACKGROUND: Long segmental tracheal repair is challenging in regenerative medicine due to low adhesion of stem cells to tracheal scaffolds. Optimal transplantation of stem cells for tracheal defects has not been established. We evaluated the role of hyaluronic acid (HA) coating of tracheal scaffolds in mesenchymal stem cell (MSC) adhesion and tracheal regeneration in a rabbit model. METHODS: A three-dimensionally printed tubular tracheal prosthesis was incubated with dopa-HA-fluorescein isothiocyanate in phosphate-buffered saline for 2 days. MSCs were incubated with an HA-coated scaffold, and their adhesion was evaluated by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay. HA coated scaffolds with or without MSC seeding were transplanted at the circumferential tracheal defect in rabbits, and survival, rigid bronchoscopy, radiologic findings, and histologic findings were compared between the two groups. RESULTS: HA-coated scaffolds showed better MSC adhesion than non-coated scaffolds. The HA-coated scaffolds with MSC group showed a wider airway and greater mucosal regeneration compared to the HA-coated scaffolds without MSC group. CONCLUSION: HA coating of scaffolds can promote MSC adhesion and tracheal regeneration.

여자간호사가 인식하는 남자간호사의 유형 및 특성

성지숙(Seong, Ji-Suk),염은이(Yeom, Eun Yi) 한국산학기술학회 2016 한국산학기술학회논문지 Vol.17 No.1

본 연구는 인간의 주관성을 탐구할 수 있는 Q 방법론을 이용하여 여자간호사가 인식하는 남자간호사의 유형과 특성 을 확인하고자 수행하였다. 35명의 P 표본에게 35개의 Q 표본을 9점 척도 상에 정규 분포의 형태로 분류하게 하였다. 수집된 자료는 PC-QUANL 프로그램으로 처리하였다. 연구결과, 남자간호사에 대한 인식은 3개의 유형으로 확인되었으며, 제1유형 은 ‘발전 지향적 옹호형’, 제2유형은 ‘현실적 비판형’, 제3유형은 ‘보수주의적 수용형’으로 분류되었다. 각 유형 간 공통된 견해는 ‘남자간호사는 여성 집단의 고유한 특성으로 인해 스트레스를 받는다’로 나타났다. 본 연구결과는 세 가지 유형에 근거한 중재 프로그램을 개발하여 남자간호사에 대한 여자간호사의 인식을 향상시키는 데 기여할 것이다. The aim of this study was to identify the female nurses' perception of the types and characteristics of male nurses using Q-methodology, which can explore human subjectivity. The 35 selected Q-statements from each of 35 subjects were classified into a normal distribution using a 9 point scale. The collected data was analyzed using the PC-QUANL program. Principal Component Analysis identified 3 types of perception toward male nurses. Type 1 was classified as 'development-oriented support type', Type 2 was classified as 'realistic critical type', and Type 3 was classified as 'conservative acceptance type'. The consensus of opinion in each type was 'Male nurses are under stress due to the unique characteristics of a female-dominated workplace'. These results will contribute to the perception improvement of female nurses toward male nurses by developing arbitration programs based on the three types.

성인 여성의 모유수유 예측요인: 국민건강영양조사 제7기 3차년도(2018)의 2차 자료 분석

성지숙(Ji-Suk Seong) 한국산학기술학회 2020 한국산학기술학회논문지 Vol.21 No.12

본 연구는 제7기 3차년도(2018) 국민건강영양조사 통계 자료 중 건강 설문 조사 결과를 토대로 인구사회학적 특성 및 건강관련 특성이 성인 여성의 모유수유에 미치는 영향요인을 파악하고자 시행되었다. 자료는 가중치를 적용하여 SPSS Win 22.0 프로그램의 복합표본 분석방법을 이용하여 분석하였다. 성인 여성의 모유수유에 영향을 미치는 요인을 알아보기 위하여 복합표본 다중 로지스틱 회귀분석을 한 결과, 연령, 교육 수준, 흡연이 모유수유에 영향을 미치는 것으로 나타났다. 30-39세 연령군인 경우 19-29세 연령군인 경우보다 3.06배, 초등학교 이하의 학력인 경우가 대학 이상의 학력인 경우보다 4.70배, 비흡연자가 흡연자에 비해 2.51배 모유수유율이 높았다. 따라서 30세 미만의 연령의 경우 모유수유에 대한 교육을 더욱 강화하고 40세 이상의 연령의 경우 모유생산량을 높이고 돌봄 제공서비스를 제공해야 한다. 또한 학력이 높은 경우에는 직장생활 등의 제한된 환경에서의 효율적인 모유수유 방법을 익히고 수유부를 배려하는 사회적 분위기 조성이 필요할 것이다. 뿐만 아니라 여성 흡연자의 금연프로그램에는 임신 및 수유와 관련된 교육이 포함되어야 할 것이다. This study was conducted to identify the factors affecting breastfeeding in adult women based on socio-demographic and health-related characteristics using the results of KNHANES Ⅶ-3. The data was analyzed by applying weights, using the complex sample analysis method of the SPSS Win 22.0 program. Breastfeeding was influenced significantly by age, education level, and the current smoking status. Women in the age group of 30-39 years had a breastfeeding rate that was 3.06 times higher than 19-29 year old women. Also, the breastfeeding rates for women with an education level under elementary school were 4.70 times higher than those with a college degree or higher education level and non-smokers and ex-smokers had levels 2.51 times higher than smokers. Therefore, for mothers under the age of 30, education on breastfeeding should be further strengthened. For mothers over 40 years old, lactation support to increase the milk supply should be provided as well as assistance toward care for other children in the family. Also, better-educated mothers will need to learn effective breastfeeding methods in limited environments such as work-life, and a social atmosphere needs to be established that is considerate to lactating women. Furthermore, education related to pregnancy and lactation should be provided for use in smoking cessation programs for female smokers.

전담간호사의 직무수행 경험

성지숙(Seong, Ji-Suk),염은이(Yeom, Eun Yi) 질적연구학회 2015 질적연구 Vol.16 No.2

Purpose: The purpose of this study was to describe the experience of the performance of the Korean Physician Assistant‘s duties. Methods Data were collected through in-depth interviews with seven physician assistants. Data were analyzed using Colaizzi"s phenomenological method. Results In this study, six categories composed thirteen theme clusters. The six categories were ‘Expectations for change and development,’ ‘Mental and physical exhaustion due to uncertainty of work,’ ‘Conflict with medical staff,’ ‘Pride of duty performance,’ ‘Anxiety about uncertain future’ and ‘Work area development of nurses.’ Conclusion: These results will contribute to the role establishment of physician assistant and the qualitative improvement of work by providing the grounds for the establishment of a physician assistant institution and the development of a systematic education program apposite to the case of Korea.