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

모기 살충성 세균 B. thuringiensis subsp. israelensis의 효과적인 분리 방법

김광현,이광배,신두만 동의대학교 기초과학연구소 1999 基礎科學硏究論文集 Vol.9 No.1

For more convenient and rapidly isolation of Bacillus thuringiensis subsp. israelensis(Bti), 1) heat treatment for spore forming bacteria, 2) growth in enrichment culture media for Bacillus sp. and 3) selection of bacteria producing a lecithinase for Bacillus thuringiensis subsp. israelensis, were performed. Spore forming bacteria were counted 4.8×10^8cells/g soil on NAPGCY media, 9.2×10^7cells/g soil on NA media, and 3.6×10^8cells/g soil on NAAC media, respectively.; Bacteria producing only a lecithinase were reached at 25.2% on medium contained egg york, bacteria only producing a delta-endotoxin were reached at 23.2% by phase contrast microscope, and bacteria producing a lecithinase & a delta-endotoxin simulten-iously were reached at 13.7%. Bacillus thuringiensis which producing a lecithinase and a delta-endotoxin simultaniously among bacteria producing a lecithinase, were reached at 56.5%; A half of Bacillus thuringiensis was produced a delta-endotoxin, but not produced a lecithinase. Among 8 isolates of Bacillus thuringiensis, two strain of Bti which has a mosquito-cidal toxin, were detected by PCR using a specific primer of δ-endotoxin gene form Bti.

알코올 금단 발작 환자에서 진전 섬망 예방에 대한 Nimodipine과 Chlordiazepoxide의 효과 비교

정두신,양광익,이보람,방차옥,이태경,성기범,안무영,박형국 순천향의학연구소 2001 Journal of Soonchunhyang Medical Science Vol.7 No.1

Background & objectives : An increase of calcium influx during alcohol withdrawal state may contribute to neuronal hyperexitability, which cause delirium tremens(DT). Some investigators have found calcium channel blockers effects in prevention of DT in experimental animals. Therefore we evaluated the preventive effects of calcium channel blocker(nimodipine) and benzodiazepine(chlordiazepoxide) on the development of DT in alcohol withdrawal seizure(AWS) patients. Method : A total 59 patients with AWS were divided into three groups according to the management nimodipine-treated, chlordiazepoxide-treated, and control(no specific medication) groups. We compared the incidence rates of DT in the three groups. Results : Total incidence rate of DT was 30.5%(18 of 59 patients). There were 6 DTs of 18 patients(33.5%) in nimodipine-treated group, 4 of 21 patients(22.5%) in chlordiazpoxide-treated group, and 8 of 20 patients(44.0%) in control. Conclusion : The control group(44.0%) showed the highest incidence rate of DT. And nimodipine-treated(33.5%) and chlordiazepoxide-treated group(22.5%) were followed. However, this result failed to demonstrated statistically significant differences due to small numbers size.

모기유충에 대한 살충성 내독소와 항진균성 물질을 동시에 생산하는 B. thuringiensis AF6균주의 분리 및 특성

김광현,이광배,신두만 동의대학교 기초과학연구소 1999 基礎科學硏究論文集 Vol.9 No.1

For a biological control on a plant pathogen, Pyricularia oryzae, and a mosquito, Aedes aegypti, Bacillus thuringiensis strain AF6 which produces parasporal inclusion, delta-endotoxin, was isolated. The B. thuringiensis strain AF6 was produced not only an antifungal substance(AFS) against P. oryzae, but also a mosquitocidal delta-endotoxin. The AFS of the strain AF6 is more stable at pH4.0 than pH10.0. At the mode of action, the AFS of the strain AF6 was inhibited hypha growth on potato agar plate(pH5.0), and degraded cell walls of P. oryzae.

운동선수의 임장불안에 대한 연구

홍관이,이광재,김두경,부기원,노성규,한상준,박기동,오수일,문병용,이철규,박장평,엄기진,박남환 江原大學校附設 體育科學硏究所 1984 江原大學校附設體育科學硏究所論文集 Vol.- No.9

This study is designed to grasp the elements and situations of stage fright in order to propose a part of ways to cope with it. We make 511 top-class high school players, male and female, in the central districts (Seoul, Inchon, Kyungki, Chungbuk, and Kangweon Province) on object of questionnaire, and get the following results. Through players generally have all-round characters they show weakness in the superiority and emotional stability while showing strength in the sonformity. This fact comes to be related to the elements which cause stage fright. Physiological changes also have many effects on the symptom of stage fright. Especially, stage fright increases when players show sensitive reaction to the self-consciousness of final consequence which comes from the tension or uneasiness of sympathetic nerve, Thus, it turns out that players make use of reducing psychological burden by physical exercise or adjusting the level of demanded result in order to release the stage fright.

유류 오염 토양 복원을 위한 Biopile 적용성 연구

황인,이두명,이종광,김무훈,오종민 경희대학교 2005 環境硏究 論文集 Vol.14 No.-

Bioplc experiments were performed to evaluate the feasibility for the removal of TPH (Total Petroleum Hydrocarbon). The soil contained 552 mg/kg and 6,000 mg/kg of TPH. The soil contained 6,000 mg/kg of TRH was spiked with the petroleum hydrocarbon using the diesel. Results showed that TRH removal efficiency was maximum 64.75 % in the aerobic and nutrients condition. The removal efficiency of spiked soil was 45.2 % after 45 days. Biopic was useful redemption technology for petroleum contaminated site. To evaluate biodegradation, we isolated the diesel degrading bacteria from the contaminated soil and detected catabolic enzyme encoding gene by PCR (Polymerise Chain Reaction). It indicated that bioremediition technology using the microbes is applicable to the petroleum contaminated site.

유산망아지에서 말herpesvirus 의 면역조직학적 및 immunogold 기법에 의한 전자현미경적 진단

신태균,이두식,진재광,임윤규,조길재 濟州大學校 農科大學 動物科學硏究所 1997 動物科學論叢 Vol.12 No.1

To investgate the causative Virus in aborbon of horse in Cheju, we examined the spleen of affected foal by immunohtochemistq and immunogold electron microscopy using EHV - specific antisera. Immunohistochemical staining revealed that a large number of EHV immunoreadive cells were deteded in the red pulp as well as in the sinudoidal cells in the affected spleen. By the immunogold electron microxopy(EM) of crude preparation of EHV culture, electron dense gold paricles were labelled along the envelope of amorphous virus parhcles with vanng sizes of 50-200nm. We suppose that immunohistochemical method is good for the diagnosis of tissues in EHV infections, and immunogold EM is recommended for the study of virus dia gnosis of fluid specimen as well as the ultrastustural study.

다른 국소 신경학적 측위 징후 없이 발생한 전실어증 1예

송운욱,정두신,양광익,이태경,박형국,안무영 대한노인병학회 2001 대한노인병학회지 Vol.5 No.3

최근 10년간 원광의대병원에서 시행한 소아 심장혈관 수술의 임상적 고찰

윤향석,정수미,최두영,오광수,오연균,김종덕,양현웅,이삼윤,김형곤,최종범,최순호,노병석 圓光大學校 醫科學硏究所 1995 圓光醫科學 Vol.11 No.2

We reviewed 10 years experiences of the clinical aspects and early postoperative results in 544 pediatric patients(age less than 16 years old). Among them. 529 cases had the congenital heart diseases, and 15 had the acquired diseases. Open heart surgery was performed in 413 patients. 115 cases were treated with non-open heart surgery. 16 with interventional catheterization. Annual increase of the cardiac patients was not significant in recent 10 years, except slight increase in 1994. The mean age of the study patients had been evidently changed to younger year by year. Total mortality rate of the open heart surgery was 6.4%. The cyanotic congenital heart diseases were high in early postoperative mortality by 25.7%, whereas 4% in acyanotic group. The age group less than one month was most highest in surgical mortality(66.7%). There were no deaths in patients with patent ductus arteriosus(103 cases), atrial septal defect(83 cases) or pulmonary stenosis(17 cases). Among 220 patients with ventricular septal defects(VSD). 10(4.5%) were died early postoperatively. In cyanotic group, the patients with pulmonary atresia with ventricular septal defects(PAVSD), transposition of the great arteries(TGA), interrupted aortic arch(IAA), complex cardiac anomalies with isomerism seemed to be most susceptible to an early death.

Management-Reserve Estimation for International Construction Projects Based on Risk-Informed k-NN

Lee, Kwang-Pyo,Lee, Hyun-Soo,Park, Moonseo,Kim, Du Yon,Jung, Minhyuk American Society of Civil Engineers, Engineering M 2017 Journal of management in engineering Vol.33 No.4

<P>International construction projects normally involve high levels of risk. To reduce such risk, contractors typically include a reserve to mitigate cost overruns and schedule delays. This reserve comprises two categories: (1)a contingency reserve covering potentially required changes, and (2) a management reserve (MR) covering unplanned changes. Since estimating an MR is difficult because the inherent risks are unpredictable, the traditional percentage method is still used for this purpose. To address this shortcoming, this study proposes an MR estimation method based on the cost and schedule performance ratios of international construction projects. K-nearest neighbor (k-NN) is applied to retrieve similar projects and a genetic algorithm is adopted to optimize the retrieved cases. Finally, case studies are conducted to validate the estimated ratios and test the applicability of the proposed MR estimation method. The case study results show that the proposed method can infer the cost and schedule performance ratios within a 5% error rate. As a result, it can estimate the MR more accurately than the traditional percentage method. (C) 2017 American Society of Civil Engineers.</P>