경연 대회를 통한 초ㆍ중고생의 창의력 신장 효과에 관한 연구

이희복,육근철,류해일,김현섭,김희수,박달원,유병환,김선효,김여상,서광수,변두원,서명석,배성효,박종석,심규철,이성희 공주대학교 과학교육연구소 2001 과학교육연구 Vol.32 No.1

미래 사회를 대비하기 위한 개인의 개성을 존중과 창의적인 능력을 지닌 인간을 양성을 목적으로 충청남도 지역의 초 ㆍ 중고등학생들을 대상으로 한 창의력 경연대회가 공주대학교 과학교육연구소에서 개최되었다. 충청남도 초 ㆍ중 ㆍ 고등학생들을 대상으로 실시한 창의력 경연대회는 창조적 아이디어를 내어 스스로 문제를 해결해 나갈 수 있는 교육 프로그램을 제공하는 좋은 기회였음이 확인되었으나, 일부의 팀에서만 참신하고 재미있는 아이디어들이 제안되었다. 여학생의 참가자 수가 상당히 증가하였으며, 대체적으로 입상권의 학생들의 상당 부분이 여학생이라는 것이 특이할만하다. 학년이 올라감에 따라서 창의적인 아이디어를 내는 양이나 질에 있어서 뒤떨어지는 것으로 분석되었으며, 토론 학습의 적응력이 미흡하고 발표력 및 청취력에 있어서도 떨어지는 것으로 나타났다. 따라서 중 ㆍ고등학교의 학교교육에서도 학생들에게 프로젝트형 탐구학습 프로그램의 적용은 물론 토론식 수습을 통한 학생들의 사고의 전환의 기회를 제공해야 할 것으로 사료된다. The creativity competition was held to foster the creativity of elementary and secondary school students in the Institute of Science Education, Kongju national University. It was found that the creativity competition effected on the improvement of inventing creative ideas and problem solving activities. But, only some competitors participated in semifinal and final contests, presented original and interesting ideas. More female students participated in competition than last year. More female participants were awarded a prize than males. Totally, participants were defective in discussion and communication, and presentation and listening ideas. Increasing grades correlated inversely with creativity and originality. There is need of inquiry project teaming programs and presenting opportunities of conversion of thinking by discussing instructions in school

Pollen Viability of Common Buckwheat (Fagopyrum esculentum Moench.) in in vitro Germination and its Application to Male Gametophyte Isolation

Woo, Sun-HeeㆍKeun-Yook ChungㆍHeung-Tae, KimㆍYong-Gu, ChoㆍHong-Sig, KimㆍBeom-Heon, Songㆍ Chul-Won, Lee and Seung-Keun Jong 忠北大學校 農業科學硏究所 2004 農業科學硏究 Vol.21 No.-

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임신마우스에서 수용성카이토산에 의한 태아의 방사성스트론튬 오염 억제

채기문,최근희,양광희,범희승,김지열,김광윤 대한방사선 방어학회 1994 방사선방어학회지 Vol.19 No.3

핵분열생성물중의 하나인 방사성스트론튬은 임신한 쥐에서 태반을 빠르게 통과하여 태아를 오염시킨다. 독성이 적은 천연착화제로서 마우스체내의 방사성스트론튬(Sr-85)의 제거에 효과적인 것으로 알려진 카이토산을 이용하여 Sr-85의 태반오염억제에 관한 연구를 하였다. 실험군은 일반식이를 공급한 대조군과 임신 17일째에 수용성카이토산을 피하(1% 카이토산), 구강(10% 카이토산), 복강(0.3% 카이토산)으로 주사한 카이토산군으로 분류하였다. 피하주사군은 Sr-85 오염후 카이토산을 주사한 군이며 복강과 구강주사군은 Sr-85 오염젼 15일간 카이토산을 공급한 군이었다. 출산과 동시에 어린마우스의 전신을 측정한 겨러과 출생후 7일째에 대조군이 2.8 ±0.3%의 전신축적율을 나타낸 반면 피하, 구강, 복강, 주사군은 각각 1.2 ±0.1%, 1.4 ±0.1%, 1.6 ±0.2%로 나타났다. 결과적으로 임신한 마우스에서 수용성카이토산은 방사성스트론튬의 태반오염을 유의하게 억제하는 것으로 사료된다. Radiostrontium passes the placental barrier in pregnant rodents very well. Chitosan, a natural nontoxic chelator, was reported to reduce whole body retention of radiostrontium in mice. The aim of the present study was to evaluate water soluble chitosan as a blocking agent of transplacental transfer of radiostrontium in pregnant mice. Twenty pregnant mice wre divided into four groups : control and three groups of chitosan treatment(groups 1 to 3). Sr-85(15KBq in 0.2ml saline) was subcutaneously injected into pregnant mice at the 17th day of pregnancy. In control mice, 0.2ml saline was given 5 hours after the injection of Sr-85. In group 1.1% water soluble chitosan was given subcutanously for two days, twice daily after the injection of Sr-85. In group 2, 10% water soluble chitosan was given orally for 15 days before conception. In group 3, 0.3% water soluble chitosan was injected intravenously for 15 days, once daily before conception. Gamma counting of newborns were done at days 0, 2 and 7 after their births. Whole body retention of Sr-85 in newborns of control mice at days 0, 2, 7 were 3.1 ±0.3%, 2.9 ±0.3%, 2.8 ±0.3% respectively. In experimental groups, whole body retention of Sr-85 was significantly lower thanthat of control(p<0.01) and no statistical difference was noted between them. In group 1, the values were 2.1 ±0.3%, 1.4 ±0.1%, 1.4 ±0.1%, respectively. In group 3, they were 2.1 ± 0.2%, 1.7 ± 0.2%, 1.6 ± 0.2%, respectively. In conclusion, the water soluble chitosan reduced transplacental contamination of radiostrontium in pregnant mice.

카이토산을 이용한 방사성스트론튬 오염의 치료

김지열,송호천,양광희,최근희,채기문,범희승,김광윤 대한방사선 방어학회 1994 방사선방어학회지 Vol.19 No.3

본 연구에서는 마우스에 이미 오염된 방사성스트론튬(Sr-85)을 제거하는데 수용성카이토산이 어느정도 효과가 있는지 알아보고자 하였다. Sr-85를 정맥주사한 경우 주사후 1일째의 체내 잔류량은 72.9 ±5.7%, 5일째는 57.7 ±1.9%, 7일째는 54.2 ±1.4%로 서서히 감소하였으며, Sr-85를 복강내 주사한 경우는 주사후 5일째 54.4 ±1.2%, 15일째 50.6 ±0.8%로 정맥주사에 비해 낮은 잔류량을 보였다(5일째 잔류량의 비교, P<0.05), 0.3% 수용성카이토산을 1회 정맥주사해준 제21군 및 10% 수용성카이토산을 식이중에 섞어 먹인 제5군은 각각의 대조군에 비해 체내 잔류방사능의 차이가 없었으나 (P>0.05), 0.3% 수용성카이토산을 3일간 정맥주사한 제3군과 3% 수용성카이토산을 이틀 간격으로 15일간 복강내 주사한 제6군에서는 각각의 대조군에 비해 낮은 잔류방사능을 보였다. (P<0.01). 결론적으로 수용성카이토산을 연속적으로 정맥투여하거나 복강내 투여하는 경우에는 스트론튬의 골대사촉진 또는 골중의 스트론튬과의 반응등을 통해 그 배출을 촉진시킬 것으로 사료되었다. The aim of the present study was to elucidate the effect of the water soluble chitosans on the removal of contaminated radiostrontium(Sr-85) from the bone of mice. The remaining radioactivities in intravenously injected controls(group 1) were higher than in intraperitoneally injected controls (group 4, P<0.01). The % retention at day 5 were 57.7 ±1.9%, 54.4 ±1.2%, respectively. Single intravenous injection of 0.3% water soluble chitosan and continuous oral ingestion of 10% water soluble chitosan for 15 days were ineffective on the removal of contaminated radiostrontiums. Multiple intravenous or intraperitoneal injections of water soluble chitosan effectively removed contaminated radiostrontiums (P<0.01 vs controls). In conclusion, water soluble chitosan might remove once incorporated radiostrontium from bones of mice. further studies were needed to elucidate the mechanism of the removal.

공간정보를 이용한 홍수재해지도 예측분석

임희창, 최석근 충북대학교 건설기술연구소 2013 충북대학교 건설기술연구소 논문집 Vol.32 No.1

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LDI(LCD driver Ic)의 응답 시간을 향상시키기 위한 선행 강조 구동 회로 설계

박근형, 손홍희, 정인석 충북대학교 컴퓨터정보통신연구소 2008 컴퓨터정보통신연구 Vol.16 No.1

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스포츠센터 體育指導者들의 職務滿足度에 관한 調査 硏究

류근림,이순희 경희대학교 체육과학연구소 1995 體育學論文集 Vol.23 No.-

We tried questionare survey to 331 physical director who worked for sports center in the region of Seoul and Kyung-Gi Do By scientific analysis, of those result, we got some conclusion on the difference of job satisfaction in accordance with personal characteristics and their environment. 1)The satisfaction degree with establishment was remarked in those who worked at sports complex(2. 48±0.61), but them at none-complex sports center(2.63±0.65, p<.05). 2)We also found the reasionable difference In the comparision of the equipment, career, sexual difference(p <.01). 3)Those applicants had a good opinion of the equipment in sports complex (2.63±0.67), but that was not in non-complex sports center(2.98 ± 0.78, p<.001). 4)Those group who were older than 30, showed better response(9.4 ± 0.81) ;but those who younger than 25 were not(3.11 ±0.66, p<.05). 5)we did not find the reasionable difference in equipment scale, sexual difference, age, career, position, and their scholarship. 6)On the whole, those physical director in sports complex showed higher difference(2.95 ± 0.50) than them in non-complex sports center(2.74 ± 0.47, p<.001). 7)Six factors about job satisfaction had no important relation between groups. But general satisfaction was showed higher in non-complex sports center(3.04±0.46) than sports complex(2.94±0.43, p<.05) :in male(3.02±0.49) than female(2.92±0.38) ;older group than 25(3.01 ±0.43) than lower group below 25(2.83±0.39, p<.05).

자료표현 학습에서 자기조절 학습시스템이 학업성취도에 미치는 영향

윤정희,이은경,한건우,이영준 韓國敎員大學校 敎育硏究院 2007 敎員敎育 Vol.23 No.2

In order to understanding the principles of computer operation, students need to know data representations first. But most of students have difficulties in understanding it and their academic achievements are relatively low. Therefore, we developed a self-regulated learning system based on self-regulated learning strategies and implemented it in the high school. The experimental group was taught with the self-regulated learning system, while the control group was taught with a traditional teaching method. We found that teaching with the self-regulated learning system has more positive effects on academic achievement than teaching with a traditional method in data representation learning. 인문계 고등학교 ‘정보사회와 컴퓨터’ 과목의 ‘자료표현’ 영역은 컴퓨터의 작동원리를 이해할 수 있는 중요한 영역이지만 학생들은 이 영역 학습을 매우 어려워하며 성취도도 낮은 편이다. 따라서 학생들이 보다 쉽게 ‘자료표현’ 영역을 학습할 수 있는 지원시스템이 필요하며 본 연구에서는 개인의 능력에 따라 학습이 가능하고 실질적인 교수학습과정에 유용하도록 설계된 자가조절학습 프로그램을 적용한 자기조절학습시스템을 개발하였다. 개발된 시스템을 실제 교수 학습 현장에 적용하여 자기조절학습시스템을 활용한 수업이 학습자의 학업성취도에 긍정적인 영향을 끼쳤음을 확인하였다.

Adrenal Chromaffin Cell을 이용한 남용약물의 의존성 발현에 관한 연구

김안근,정희선 숙명여자대학교 약학연구소 1997 약학논문집-숙명여자대학교 Vol.13 No.-

This study was attempted to investigate the effects of alprazolam and narcotic opiates on catecholamine release from bovine adrenal chromaffin cell (BACC). An extensive experiment was conducted to examine the acute and chronic effects of morphine as a model of opiates on catecholamine release. In order to begin the characterization on receptor type, concentration response curve of morphine was compared with naloxone treatment. The effect of chronic exposure to inhibitory concentrations of morphine on the number of binding sites for [?H] nitrendipine binding on BACC membrane was carried out to see the development of tolerance and dependence in these cells. As a result, following findings were found; Alprazolam and morphine caused a dose.dependent inhibition on carbachol induced catecholamine release from BACC. Naloxone, opiate antagonist, enhanced the inhibition of carbachol . induced catecholamine released caused by morphine, but there was no different effect on the various concentrations. Chronic exposure to inhibitory concentration of morphine inhibited the catechoamine release induced by carbachol between the concentration of 10^(-6) and 10^(-3). The effect of chronic exposure of 4 days to 10^(-4) morphine on [?H]dihydropyridine binding in BACC showed a marked increase in the number of binding sites for [?H] nitrendipine with no significant effect on binding affinity.

다중 속성의 가중치를 이용한 인터넷 채용 협상 시스템의 설계 및 구현

이근수,이근왕,이종희 안성산업대학교 2002 論文集 Vol.33 No.-

These day, Internet Recruiting needs the negotiation of recruiting items. This paper proposes multilateral negotiation that substitutes applicants and employers. Previous Negotiation Systems use the preference value of the multi-attribute and the sequential negotiation. But proposed Internet Recruiting Negotiation System(IRNS) uses the parallel negotiation of multi-attribute. The parallel negotiation supplies the multi-attribute negotiation including values of single-attribute and result of parallel negotiation. This paper shows that excellent result for effective negotiation using the weight strategy of multi-attribute for a matter of concern of users.