연구논문 : 과학영재교육원 학생들의 과학 통합 탐구 능력

정은영 ( Eun Young Jeong ),권이영 ( Yi Young Kwon ),양주성 ( Joo Sung Yang ),고유미 ( Yu Mi Ko ) 경북대학교 과학교육연구소 2013 科學敎育硏究誌 Vol.37 No.3

과학영재교육원 학생들이 성공적으로 과학 탐구를 수행하기 위해서는 문제 인식, 가설 설정, 탐구 설계, 결론 도출 등의 과학 통합 탐구 능력이 요구된다. 이 연구에서는 김유향(2013)이 개발한 ‘과학 탐구 사고력 측정을 위한 서술형 평가도구’를 사용하여 과학영재교육원 학생들의 과학 통합 탐구 능력을 평가 요소별, 성별, 이수 과정별, 전공 분야별로 비교하였다. 이 평가도구는 탐구 사고력의 주요 요소들인 탐구 문제 도출, 변인 추출, 가설 설정, 실험 설계, 자료 변환, 자료 해석, 결론 도출, 일반화, 평가에 관한 문항이 각 2개씩 총 18문항으로 구성되어 있다. 이 평가도구를 2013년 현재 C 대학교 부설 과학영재교육원에 다니고 있는 학생들 중 102명 학생들(초등과학반 15명, 중등과학심화Ⅰ반 58명, 중등과학심화Ⅱ반 29명)을 대상으로 시행하였다. 그 결과, 과학 통합 탐구 능력의 요소 중 가설 설정, 변인 추출의 점수는 상대적으로 높았고, 자료 변환, 자료 해석, 평가의 점수는 상대적으로 낮았다. ‘자료 변환’에 해당하는 선 그래프 그리기 문항과 ‘평가’에 해당하는 실험 설계의 개선점 찾기 문항의 정답률은 약 40 %로 상대적으로 낮게 나타 났다. 영재교육을 받은 단계별로 비교하면 과학 통합 탐구 능력의 요소들 중 일반화의 경우 유의미한 차이가 있었다. 남학생과 여학생의 점수 차이는 유의미하지 않았다. 이 연구에서 사용한 평가도구가 생물 분야의 소재를 다루고 있어 생물 분야의 영재 학생들과 다른 분야(물리, 화학, 지구과학)의 영재 학생들과 비교한 결과, 유의미한 차이가 없었다. 과학영재교육원 학생들의 과학 통합 탐구 능력 향상을 위하여 자료 변환, 자료 해석, 평가에 관한 교수·학습을 강화하고, 과학 탐구와 관련된 구체적인 교수·학습 자료를 개발할 필요가 있다. The purpose of this study was to investigate science integrated process skill of the students in science education center for the gifted. In order to do this, ``free-response test for the assessment of science process skills`` developed by Yu-Hyang Kim(2013) was administered to 102 students(15 in elementary school science class, 58 in middle school science classⅠ, and 29 in middle school science classⅡ) who attend the program of science education center for the gifted in C university. The assessment tool measured 9 skills ; formulating inquiry questions, recognizing variables, formulating hypotheses, designing experiment, transforming data, interpreting data, drawing conclusions, formulating generalizations, and evaluating the designed experiments. As a result, the students in science education center for the gifted had relatively high scores in the area of ``formulating hypotheses`` and ``recognizing variables``, but they had relatively low scores in the area of ``transforming data``, ``interpreting data``, and ``evaluating the designed experiments``. The 2 items` percentage of correct answers were below 40% ; one is about a drawing a line graph in ``transforming data``, and the other requires finding improvements of the experimental design in ``evaluation``. There was no significant difference between boys`` scores and girls`s one, and between the scores of students in the field of biology and those of students in the other fields(physics, chemistry, and earth science) in science integrated process skills. And there was significant difference according to the periods receiving the gifted education in ``formulating generalizations``. The teaching and learning has to focus on improving science integrated process skills in the program of science education center for the gifted and teaching and learning materials needs to be developed.

충청도지역의 노거수 자원

유재은,이정호 명지대학교 자연과학연구소 2003 자연과학논문집 Vol.22 No.-

충청도지역의 노거수 자원 현황을 알아보기 위하여 1999년 3월부터 2003년 12월 10일까지 26개 시·군에 대한 현황조사와 조사된 자료분석을 통하여 다음과 같은 결과를 얻을 수 있었다. 1. 대전광역시를 포함하는 충청도지역 내에는 수령이 100년 이상 된 노거수가 31종류에 2,058본이 분포하고 있음을 알 수 있었다. 2. 이 지역 26개 시·군 중 가장 많은 노거수가 분포되어 있는 곳은 청원·청주시로 9종 193본으로 전체의 9.38%에 이르고, 그 다음이 공주시로 7종 171본이고 8.34%이며 세 번째가 괴산군으로 9종 145본으로 7.05%에 달한다. 3. 이 지역에서 나이가 가장 많은 것으로 알려진 나무는 은행나무로 1,300년 이상이고 충청남도 부여군 내산면 주암리 125번지에 있고, 백제 성왕 때 심겨진 것으로 알려져 있다. 4. 이 지역에 분포하고 있는 상록수는 소나무외 7종 103본으로 전체의 5.00%에 불과하고 낙엽수는 느티나무외 22종 1,955본으로 95.00%에 이른다. 5. 보호관리 유형별로는 정자목이 1.392본 67.64%로 제일 많고 그 다음이 풍치목으로 358본 17.40%이며 세 번째가 당산목으로 244본 11.86%을 차지한다. 6. 이 지역에 분포하고 있는 31개 수종 가운데 상위 5개 수종은 느티나무 1,505본 73.13%, 은행나무 179본 8.70%, 팽나무 120본 5.83%, 왕버들 86본 4.18% 그리고 소나무 50본 2.43% 순이고 이들 5개 수종이 차지하는 분포비율은 94.27%에 이른다. 7. 노거수의 수령별 분포는 500년생 이하가 1,896본으로 92.13%이고 501년생 이상이 162본 7.87%로 500년생 이하가 대부분을 차지한다. 8. 경인지역에서 볼 수 없었던 노거수로서의 왕버들이 이 지역에서 86본 4.18%가 분포하고 있음은 의미 있는 일이라고 생각된다. We have surveyed the distribution of aged-big trees which is growing in 26 cities and subprefecture of Chungcheong prefecture by on-the-spot studying from March of 1999 to December 10th of 2003. The results analyzed from the data are as follows. (I) In Chungcheong prefecture including Daejeon, 2,058 trees were counted as aged-big trees over 100 years old and they were classified 31 kinds of species. (2) 9 species (193 trees) of 9.38% and 7 species (171 trees) of 8.34% were recorded in Cheongwon. Cheongju city and Gongju city, respectively and then 9 species (145 trees) of 7.05% were recorded in Goisan. (3) The oldest tree was estimated to have the age over 1,300 years old, which had been planted in 125 Juamri, Naesanmyon, Buyoegun, Chungcheong Namdo, Korea. (4) The evergreen including Pinus densiflora in this area is 7 species accounted for 5.00% (103 trees) and deciduous with 22 species including Zelkova serratu occupied 95.00% (1,955 trees). (5) Shadow tree 1,392 trees for 67.64%, the Landscape tree 358 trees for 17.40% and the Village keeping tree (God tree) 224 trees for 11.86% have to be protected and managed. (6) The top 5 species of 31 species in this area are Zelkova serrutu (73.13%), 1,505 trees, Ginkgo bilobu (8.70%) 179 trees, Celtis japonicu (5.83%) 120 trees, Sulix glundulosu (4.18%) 86 trees and Pinus densiflora (2.43%) 50 trees. And their proportions was accounted for 94.27% of the distribution rates. (7) The aged-big tree under 500 years old are 1,896 trees occupied 92.13%, over 500 years old are 162 trees occupied 7.87%. (8) It is very meaningful that Salix glandulosa which did not reveal in Kyong-In Area are 86 trees occupied 4.18%.

방위에 따른 속리산과 오대산의 산림군락 구조분석

유재은,이정호,권기원 명지대학교 자연과학연구소 2004 자연과학논문집 Vol.23 No.-

본 연구는 방위에 따른 속리산 및 오대산 삼림식생을 분석하고자 하였다. 속리산 조사구와 오대산 조사구를 방위에 따라 출현하는 주요 종의 중요치를 살펴보면 속리산의 경우 북향에서는 쇠물푸레, 벚나무, 개옻나무, 굴피나무, 참회나무 등 8종에 중요치가 높게 분포하고 있음을 볼 수 있고, 동향에서는 소나무, 고로쇠나무, 산초나무, 소태나무, 작살나무 등 6종이, 남향에서는 굴참나무, 졸참나무, 생강나무, 물푸레나무, 짝자래나무 등 13종이, 서향에서는 신갈나무, 당단풍, 쪽동백나무, 노린재나무, 철쭉 등 13종에 중요치가 높게 출현한다. 오대산의 경우를 보면 북향에서는 당단풍, 까치박달, 거제수나무, 음나무, 잣나무등 18종이 중요치가 높게 분포하고 있음을 볼 수 있고, 동향에서는 전나무, 소나무, 느릅나무, 산벚나무, 들메나무 등 5종이, 남향에서는 신간나무, 물푸레나무, 철쭉, 진달래, 개벚지나무 등 7종이, 서향에서는 피나무, 고로쇠나무, 난티나무, 쪽동백나무, 황벽나무 등 10종이 중요치가 높게 출현함을 알 수 있다. 이러한 결과로 볼 때 속리산에서는 남향과 서향이 각각 13종씩 26종으로 북향과 동향의 14종 보다 배에 가까운 많은 수의 나무들이 중요치가 높게 출현하고 있는 것에 반하여, 오대산에서는 북향과 동향이 각각 18종과 5종씩 23종으로 남향과 서향의 17종 보다 월등히 많게 출현함을 알 수 있다. 이와 같은 결과는 속리산과 오대산이 정반대의 현상으로 속리산이 해발고가 낮고 난온대성 수종의 우위를 점하는 것에 비하여 오대산은 해발고가 높고 냉온대성 수종이 우위를 차지하고 있는데서 오는 현상으로 보여진다. This study was to research environment of the forest vegetation structure according to the directions in Mt. Sokri and Odae. According to direction, the importance value of 8 species of Fraxinus sieboldiana, Prunus serrulate var. spontanea, Rhus trichocarpa ect. appeared highly on the north, 6 species of Pinus densiflora, Acer mono, Zanthoxylum schinifolium ect. highly appeared on the east, 13 species of Quercus variabilis, Quercus serrata, Lindera obtusiloba ect. highly appeared on the south, 13 species of Quercus mongolica, Acer pseudo-sieboldianum, styrax obassia ect. highly appeared appreared on the west in Mt. Sokri. The importance value of 18 species of Acer pseudo-sieboldianum, Carpinus cordata, Betula costata ect. highly appeared on the north, 5 species of Abies holophylla, Pinus densiflora, Ulmus dabidiana var. japonica ect. highly appeared on the east, 7 species of Quercus on the south, 10 species of Tilia amurensis, Acer mono, Ulmus laciniata ect. highly appeared on the west in Mt. Odae

면접조사를 통한 초등학생의 영양교육 실태 및 실천도 조사

오유진,이영미,김정현,안홍석,김정원,박혜련,서정숙,김경원,권오란,박혜경,이은주,성현이 대한지역사회영양학회 2008 대한지역사회영양학회지 Vol.13 No.4

This study investigated the experience and practice of elementary school students on nutrition education. The data were collected from 217 male and female students attending 5-6th grade elementary schools in Seoul and Kyunggi-Do from March to June 2007, interviewing face to face by a nutrition teacher and 3 interns of a nutrition teacher. The results were as follows: 86.5% of the subjects learned about ‘Table etiquette’, ‘Reasons for eating fruits and vegetables’ (78.7%), ‘Food waste and environment’ (72.3%), ‘Healthy snacks’ (55.7%), ‘Food sanitation’ (52.3%), ‘Food culture of foreign countries’ (48.1%). Nutrition education experience was significantly different by gender. A total of 43.5% boys responded that they never learned about ‘basic food preperation’ (p < 0.01). They had learned ‘Nutrients for body’ and ‘Food waste and environment’ in school, ‘Healthy weight loss’, ‘Food culture of foreign countries’, ‘Food circulation’ on television, Most content (‘Table etiquette’, ‘Simple cooking’, ‘Food sanitati n’, ‘Eating behaviors for health’, ‘Reasons for eating fruits and vegetables’, ‘Healthy snacks’) was learned from parents. The practice after nutrition education was higher in ‘Table etiquette’ (2.14), ‘Eating fruits and vegetables’ (2.07) than others compared with education experience. The most reason of non-practice on nutrition information was ‘Troublesome’. In ‘Nutrients for body’, a boy answered ‘Difficult for practice’ 20.0%, a girl answered ‘Difficult to understand’ 32.6%, showing a significant difference between the gender groups (p < 0.001). They remembered the ‘Nutrients for body’ (49.6%), ‘Food sanitation’ (44.5%) because of ‘important content’,‘Basic food preparation’ (40.6%), ‘Food culture of foreign countries’ (36.3%) because of ‘interesting content’, ‘Healthy weight loss’ (52.0%), ‘Eating behavior for health’ (44.5%) and ‘Healthy snacks’ (33.7%) because of ‘need for my health’.

Fluoride, Bisphosphonate 및 Gallium이 상아질 흡수 억제에 미치는 영향

백은영,유윤정,노병덕,최윤정,이승종 大韓齒科保存學會 1997 Restorative Dentistry & Endodontics Vol.22 No.2

Replacement resorption is followed by the delayed replantation of an avulsed tooth. Currently no effective treatment is substantiated for replacement resorption. The purpose of this study was to investigate the effect of stannous fluoride, bisphosphonate(etidronate disodium) and gallium nitrate, which have been shown to reduce dentin resorption, on human dentin. Osteoclasts were collected from tibeas of chich embryo. The cells were well agitated to prevent adhesion and seeded onto the sliced human dentin wafers which had been soaked in either culture media(control), or several different concentrations of stannous fluoride, etidronate disodium(1-hydroxyethylidene-1, 1-bisphosphonate disodium), and gallium nitrate. Resorption was measured by counting the number of resorptive pit produced by the cells. Results are ad follows. Stannous fluoride and etidronate disodium showed statistically significant reduction of dentin resorption(p<0.05) but the effect of stannous fluoride seemed to be its high cytotoxicity. Etidronate disodium did not show cytotoxicities in all experimented concentrations. Gallium nitrate did not show differences in resorption either between different concentrations of from the control group.

경막 내 colistimethate 투여로 치료한 다제 내성 cinetobacter baumannii 뇌실염

홍유아,유진홍,김진진,모은영,안건희,정희경,김진석,이현정,정미향,윤승배 대한감염학회 2009 감염과 화학요법 Vol.41 No.4

Acinetobacter species is a non-fermentative aerobic gram-negative coccobacillus that is an important pathogen found in nosocomial infections. Recently, multi-drug resistant Acinetobacter baumannii (MDR-AB) infections have been increasing and pose a serious problem. Most such infections present as bacteremia, pneumonia, or a wound infection; however, CNS infections are very rare. We herein present a case of ventriculitis caused by MDR-AB in a 37-year old man after a neurosurgical intervention. The patient was successfully treated with intrathecal colistimethate.

시각장애학교 교사의 학교도서관 이용 및 활용수업 실태 : A Study on Teachers' Use of the School Library and School Library-Assisted Instruction at School for the Visually Impaired

고유진,정은희 이화여자대학교 특수교육연구소 2015 특수교육 Vol.14 No.3

연구목적: 본 연구는 시각장애학교 학교도서관 이용 및 활용수업 실태를 알아보고자 하였다. 연구방법: 시각장애 중·고등학교 교과 담당 교사 86명을 대상으로 한 조사연구를 실시하였다. 연구결과: 과반수정도가 도서관 활용수업을 진행한 적이 있다고 하였다. 국어교사는 대부분 경험이 있는 반면 다수의 수학교사는 경험이 없었으며, 활용수업을 실시하지 않는 이유로는 과목의 특성을 언급하였다. 도서관 활용수업은 교과수업의 질을 높이기 위해 실시한다고 하였고, 대부분의 교사가 시각장애학생에게 도서관 활용수업이 필요하며 교수학습 면에서도 중요하다고 하였다. 또한 학교도서관 활용수업을 통해 자기주도 학습능력, 정보 활용능력, 수업에 대한 관심과 흥미도가 모두 향상된다고 인식하고 있었다. 도서관 활용수업을 활성화시키기 위해서는 대체자료 및 보조공학기기의 보완, 편의시설이 필요하다고 하였다. 결론: 전담 사서교사의 배치를 통해 체계적인 지원 체계와 전문성을 확보하고 지속적인 연수를 통하여 학교도서관 활용수업에 대한 홍보, 교육과정과의 연계 및 다양한 프로그램과 교수매체의 개발이 필요하다. Purpose: This research examines teachers’ use of school library and their implementation of school library-assisted instruction at middle and high schools for the visually impaired. Method: A questionnaire was distributed to 86 middle and high school teachers for the visually impaired. Results: First, more than a half of the teachers had implemented school library-assisted instruction. While most teachers of Korean had taught library-assisted classes, most math teachers responded that they had not used school libraries because of the nature of the subject matter. Regarding the purpose of school library-assisted instruction, a majority of teachers mentioned the improvement of the quality of teaching and learning. Second, most teachers acknowledged the benefits of library-assisted instruction for visually impaired students and its importance in teaching and learning. The teachers expected that, by utilizing school libraries, they could enhance the visually impaired students’ self-initiated learning ability, information utilization ability, attention and interest in class. Lastly, teachers suggested that alternative materials and assistive technology should be made available for more effective utilization of school libraries. Conclusion: The research indicates that support systems are also necessary, including professional librarians, continual education on school library-assisted instruction, development of connected curriculum, and development of instructional media.

차량용 산소발생기의 성능 측정

송근호,유진호,김정은,장화익,이광래 江原大學校 産業技術硏究所 2005 産業技術硏究 Vol.25 No.A

Auto exhausts and air pollution can become trapped in the cabin of vehicle, reducing the amount of oxygen available for breathing. Driver may feel sleepy, headaches, nausea, confusion, dizziness and lower levels of oxygen can damage the driver's general health. Consequently, oxygen generator purified oxygen into the car to help driver get the oxygen driver's body needs. In this study, in order to evaluate the oxygen generator performance, the samples that the various conditions(humidity(50%, 100%), flow and oxygen concentration) were examined. There were three types of oxygen generator; sample 1(2.5ℓ/min, 36%0₂), sample 2(4.5ℓ/min, 41%0₂) and sample 3(5ℓ/min, 39%0₂). As the humidity increased from 50% to 100%, the oxygen concentration of the sample 1(36%), 2(41%) and 3(39%) was reduced 31%0₂, 38%0₂ and 38%0₂, respectively. Also, the each sample measured that effect of human in car on oxygen concentration, if the oxygen concentration is one person in car, each sample of oxygen concentration was 20.8%0₂, 23.7%0₂ and 21.2%0₂. From the above results, it was shown that oxygen generator for car, if the oxygen concentration is increased, effect of humidity is reduced, and that in the sample of supplying a high-rate of oxygen, the oxygen concentration is increased. It was suggested that effect of humidity on oxygen generator for car can be reduced according to the supply of oxygen.

의미 분석 단계에서의 정보 흐름 제어

조현욱,김명수,정은환,유재휘,윤병주 명지대학교 공학기술연구소 1986 공학기술연구소 논문집 Vol.1 No.-

One of protection methods for computer internal data is to pursue data flow in program and to control its flow. In this thesis, we propose a mechanism which guarantees secure information flow in a program. By investigating security classes of all the variables in a statement and judging necessary condition for secure information flow, proposed model descriminates the program whether it is secure or not. Out model can be implemnted at language translation time, particularly semantic analysis phase, by pursuing security class transfer of each statement.

The Effects of Physical Fitness and Satisfaction on According to Different Exercise Method in College Students

( Bog Ja Jeoung ),( Yu Jin Jeong ),( Eun Bin Kim ),( Eun Sol Cho ) 한국체육학회 2015 국제스포츠과학 학술대회 Vol.2015 No.1

Purpose : In previous researches, we learned that exercising promotes physical fitness ,strength and positive change in the physical satisfaction level but reviewing previous researches, there was a limit in our finding as it was based on a singular physical activity or exercise and we could not exactly find out which exercise provided the most physical change and satisfaction level. Therefore, the purpose of this study was to find out effects of physical fitness and satisfaction according to participate in exercise method(circuit strength, weight bearing program and badminton). Method: Twelve college students participated exercise program(circuit strength program : n=4, weight bearing program : n=4 and badminton : n=4) who measured 20m PACER, push-up, grip strength, sit-up and sit-reach and body composition, and satisfaction which ``Sports Participants Satisfaction Questionnaire`` developed by Yoo et al(2010). The questionnaire covered improving physical function (3), improved exercise capacity (3), promote social and psychological benefits (3), two healthy living (2) which consisted of total of 14 questions with 5 multiple choices. With regard to the body satisfaction level survey, we have used the BSQ: Body Shape Questionnaire developed in 1987 by Cooper, Taylor and Fairvurn. Park, Eun-ah and Noh, Young-kyung was edited the BSQ questionnaire for this research. The body satisfaction level survey consisted of four sub-variables and a total of 27 questions. Result: First, there is a high level of increase overall in physical strength measurement results especially in sit-ups, flexibility, push-ups and cardiovascular endurance. However, there was little difference between the groups in terms stamina changes while we could not compare physical strength changes based on the type of exercise. Second, there was a slight decrease in weight, BMI, waist and hip circumference with regard to physical changes. However, the physical changes between groups were small while there was no physical change based on the type of exercise. In addition, the was no changes in the level of satisfaction based on after and before exercising while there was only slight difference exercise groups. Third, overall satisfaction level showed significant increase among the exercise groups while the health exercise showed the highest level of satisfaction followed by badminton and circuit training. In terms of exercise satisfaction level by category, physical function improvement and improved exercise capacity showed the highest level of increase and there was little difference in the exercise satisfaction level based on the exercise type. Fourth, if we look at the satisfaction level for physical strength change, satisfaction level was high for strength and agility category but showed no changes between exercise groups. Conclusion: This research is the study of the satisfaction level and changes in physical and physical strength based on three different exercises for different exercise groups. Based on the results of the study, exercising regularly helps increase the overall physical level in all exercise groups and the satisfaction level gradually increases. However, there was little difference between the exercise groups and this research was unable to verify the difference based on the exercise groups. Since the research was limited to 12 participants, a follow-up research should be conducted based on an extended level of participants.