과학적 창의성 신장을 위한 교사발문의 개발 및 적용 : 고등학교 지구과학 교과 중심으로

조규성,박미숙,정덕호 경북대학교 과학교육연구소 2009 科學敎育硏究誌 Vol.33 No.1

This study aimed at designing an effective earth science instruction which would help to improve students' scientific creativity using the questioning strategies. The developed questioning strategies were applied to 153 students of 10^(th)~11^(th) grades from March, 2004 to February, 2006. The Reaction Evaluation of Educational Program was used for students' reponses on these questioning strategies. And the Creativity Test developed by the Korea Institute for Aptitude Test was used for the changes of students' scientific creativity. The students responded that these questioning strategies improved students' scientific creativity, and those did not promoted interaction between the teacher and the students. After implementing these questioning strategies, students' analogical ability of language was evaluated the largest score among the 6 categories of scientific creativity. The survey about students' scientific creativity showed that there are meaningful differences between before and after implementing these questioning strategies : analogical ability of figure, analogical ability of language, reading comprehension ability. 본 연구는 고등학교 지구과학 수업을 중심으로 발문 전략을 수립하고 이를 적용함으로써 학생들의 과학적 창의성을 신장시키는데 그 목적이 있다. 2004년 3월에서 2006년 2월 기간까지 고등학교 학생 153명을 대상으로 하였다. 프로그램 반응 평가지를 통하여 발문전략에 관한 학생들의 반응을 살펴보았다. 또 한국적성검사연구소에서 제작한 창의성 검사를 통하여 학생들의 과학적 창의성 신장 여부를 분석하였다. 학생들은 발문전략을 적용한 교수학습 방법이 과학적 창의성을 신장에 도움이 되었다고 반응하였지만, 교사와 학생 사이의 상호작용 증진에는 효과가 없었다고 반응하였다. 발문 전략을 적용한 교수학습의 결과 언어유추능력 항목에서 가장 많은 향상을 보인 반면, 계획적 분석능력 항목에서 가장 작은 향상을 보였다. 대응표본 t검정 결과 도형유추능력, 언어유추능력, 문장이해력 항목에서 유의미한 차이를 보였다.

중추성 요붕증이 동반된 랑게르한스 세포 조직구증 1예

김진호,문준성,문선중,이지은,최재원,은미정,천경아,조인호,윤지성,원규장,이경희 신덕섭,이형우 영남대학교 의과대학 2005 Yeungnam University Journal of Medicine Vol.22 No.2

Central diabetes insipidus (DI) is a syndrome characterized by thirst, polydipsia and polyuria. Langerhans cell histiocytosis is one of the etiologies of DI. Recently we experienced a central DI associated with Langerhans cell histiocytosis. The 44 years old female patient complained right hip pain polydipsia and polyuria. We carried out water deprivation test. After vasopressin injection, urine osmotic pressure was increased form 109mOsmol/Kg to 327mOsmol/Kg (300%). Brain MRI showed a thickened pituitary stalk and at hot bone CT.CT guided biopsy revealed abnormal histiocytes proliferation and abundant lymphocytes, The final diagnosis was central DI associated with systemic Langerhans cell histiocytosis invading hip bone, L-spine and pituitary stalk. Desmopressin and etoposide chemotherapy were performed to the patient.

Mossbauer 분광법에 의한 Fe₂SiO₄의 연구

이성호,김웅태,채광표,정덕조 建國大學校基礎科學硏究所 1988 理學論集 Vol.13 No.-

Fe₂SiO₄에 관한 X-선 회절실험과 Mossbauer 분광실험을 하였다. X-선 회절실험 결과 본 시료는 olivine group에 속하는 fayalite로서 orthorhombic 구조(??)임을 알 수 있었다. Mossbauer 분광실험은 60K-834K의 온도구간에서 행하여 졌으며, Mossbaure 스펙트럼을 분석한 결과 철은 high spin 2+ 상태임을 알 수 있었고, X-선 회절실험 결과와는 다르게 철이 산소 이온들과 함께 일그러진 octahedron을 형성하고 있음을 알 수 있었다. The Fe₂SiO₄ has been studied by means of X-ray diffractometry and Mossbauer spectroscopy. The analysis of X-ray diffraction pattern shows that Fe₂SiO₄is fayalite of orthorhombic structure(??). The Mossbauer spectra which have been taken between 60K and 834K show that the valence state of iron is ferrous and high spin state and that the iron ions occupy sites of distorted octahedron whereas the X-ray analysis shows it is at a site of regular one.

뇌 아밀로이드 혈관병과 고혈압성 뇌출혈의 감별에 있어서 Apolipoprotein Eε4와 점상 출혈 분포의 유용성

김용범,이광호,이수주,나덕렬,조수진,정진상,이원용 대한신경과학회 1999 대한신경과학회지 Vol.17 No.1

역저당연금제도를 위한 부동산가격의 장기 예측방법

마승렬,조덕호 한국보험학회 2003 保險學會誌 Vol.66 No.-

본 연구는 한국이 주택금융시장에서 노인의 주거 및 생활안정을 보장할 수 있는 새로운 주택금융 형태인 역저당연금제도를 정립하기 위해 동제도의 필수 요소인 부동산가격의 장기 예측모형의 설정에 중점을 두고 있다. 과거의 시계열자료를 사용하여 미래 특정시점의 부동산가격의 현가를 산정하기 위해서는 과거의 시계열 추이가 미래에도 동일하거나 또는 거의 유사한 추이를 따를 것이라는 믿음을 주어야 한다. 본 연구의 분석결과에 의하면 부동산가격의 순할인비율 시계열이 안정적 시계열로 확인되었다. 따라서 우리는 이들 시계열의 역사적 평균값만을 사용하더라도 장기적인 미래 주택가격의 시계열 추이를 합리적으로 예측할 수 있음을 확인할 수 있었다. 이를 바탕으로 본 연구는 미래의 부동산 가격과 수익률시계열에 대한 장기 예측문제의 어려움을 제거하면서 순할인비율 시계열자료의 역사적 평균값만을 이용하여 미래 부동산 가격을 예측하는 단순화된 예측모형을 설정하였다. This study focuses on the building of long term forecasting model of real estate price for establishing the reverse annuity mortgage which aims the residental and living stabilization for the elderly household in the Korean housing market. In order to measure the present value of real estate price in the future certain time using the past time series data, this time series trend should be same or similar in the future time. The result of this study shows that the time series of net discount ratio is stationary, and then we can confidentially forecast the trend of time series of future real estate price through using the historical average value of past time series data. Based upon this analysis output, this paper builds the forecasting model of future real estate price eliminating the difficulty of long term forecasting problems of future time series.

자동접종장치의 개발에 관한 연구

이병엽,조덕호 한밭대학교 산업과학기술연구소 1994 논문집 Vol.2 No.-

Inoculation is one of the important treatments in gray cast iron production. In spite of the fact that post inoculation is a treatment that should not be abbreviated, it is often abbreviated in many foundary shops and as the result many kinds of casting defects are occurring. In this study we made and efforts to develop automatic inoculation equipment in order to automatise the conventional manual inoculation. Principal abilities of this equipment are as follow. 1. Total feeds, feeding speed, feeding time, and total running time are indicated on LCD. 2. If feed and time are determined and inputted, speed and running time is calculated and indicated automatically. 3. If speed and time are determined and inputted, feed and running time is calculated and indicated by accumulation. 4. Automatic and munual operation are possible. 5. By the replacement of inoculant feeding disc, the amount of inoculant can be regulated form 1 to 120 gr/sec. 6. Owing to campact, set-up and movement of equipment are convenient and various inoculation can be applied ; ladle inoculation, stream inoculation, and so on…

α-Sialon 세라믹스(X=0.15)의 기계적 성질에 미치는 소결분위기 및 ZrO₂의 첨가 영향

임헌진,조덕호,이홍림,이경원 연세대학교 산업기술연구소 1991 논문집 Vol.23 No.1

4.82 wt% AIN and 2.95 wt% Y₂O₃were added to Si₃N₄as sintering agents in order to have α-Sialon composition of X=0.15 and monoclinic ZrO₂between 0 to 10 wt% was admixed with Si₃N₄. Si₃N₄based ceramics were fabricated by hot-pressing at 1750℃ for 90 min under 30 MPa in argon and nitrogen atmospheres Effects of sintering atmospheres and addition of ZrO₂on mechanical proporties of Si₃N₄based ceramics were investigated. As ZrO₂content increased, the fraction of α-Sialon tended to decrease and the amount of cubic ZrO₂increased because Y₂O₃acted as the stabilizer of ZrO₂. The sintering atmospheres didn't affect on the sintering behavior and the product phases in hot-pressing of Si₃N₄. Bending strength increased when ZrO₂was added up to 3 wt%. Hardness showed tendency to decrease with ZrO₂content. ZrO₂didn't contribute to the increase of fracture toughness because stabilized cubic ZrO₂was produced by the added Y₂O₃.

Angiotensin Ⅱ로 유도된 혈관신생에 대한 日川芎의 억제효과

文成一,金亨煥,趙貞姬,安德均,崔湖榮 대한본초학회 2002 大韓本草學會誌 Vol.17 No.2

Objective : To estimate the angiogenic effect of water extract of Cnidii Rhizoma (ECR), we employed the rat sponge model for angiogenesis. Methods : It was based on subcutaneous implantation of sterile polyester sponges in the SD rat and we have characterized the dye method that incorporates 5% carmine red and 1% cresyl violet in 10% gelatin. vascularity index (V.I.) expressed as ㎍ dye/mg tissue. Subcutaneous implantation of sterile polyester sponges in SD rats enhanced the neovascularization over 14 days, as determined by measurements of relative sponge blood flow by a vascularity technique. The angiogenic response was verified by histological evaluation of vascularized sponges. Results : Daily oral administration of ECR (100 mg/kg for 14 days) produce no apparent effect on angiogenesis. The vasoconstrictor peptide, angiotensin Ⅱ (AⅡ), in daily doses of 100 nmol, caused an intense neovascularization but lower doses of AⅡ produced no apparent effect (1 nmol and 10 nmol). Co-administration of 100 nmol AⅡ and 100 mg/kg ECR p.o. depressed 100 nmol AⅡ-induced angiogenic effect. Conclusion : We have shown that p.o. daministration of 100 nmol AⅡ accelerated angiogenesis. Meanwhile, co-administration of 100 nmol AⅡ and 100 mg/kg ECR highly suppressed angiogenic property.

안정기 양극성 장애환자의 얼굴자극에 대한 주의력 유지과제에서의 결핍 특성

황성식,전덕인,조현상,김세주,박진영,전재영,석정호 大韓神經精神醫學會 2007 신경정신의학 Vol.46 No.3

Objectives : Euthymic patients with bipolar disorder have been reported to show deficits in sustained attention. This study aimed to compare the attention capacities of euthymic bipolar patients with those of control subjects using the sustained att-ention to response task (SART) and to examine the differences in the performance of SART related to the type of the stimulus. Methods : The four SART tasks were performed to measure attention capacities in 42 euthymic patients with bipolar dis-order and 28 control subjects. Happy, neutral, fearful faces and digit '3' were used as target stimuli in happy, neutral, fear and digit task conditions, respectively. The seventy of mood symptoms was assessed with 17-item Hamilton Rating Scale for De-pressive symptoms and Young Mania Rating Scale for manic symptoms. The efficiency estimate which reflects both the res-ponse accuracy and speed was used as the main outcome variable. Results : Bipolar patients showed significantly lower correct response rate than control group in all task conditions. Effi-ciency estimates of the bipolar patient group were significantly lower than those of the control group in the SART using facial stimuli, but not in the digit task condition. There was no significant difference in task performances related to the emotional categories of facial stimuli. Conclusion : Bipolar patients showed deficits in sustained attention even in the euthymic state. The attention deficits shownin the euthymic bipolar patients may be prominent in a more complex task condition with stimuli such as facial stimuli.

만선신부전 환자에서 관상동맥조영술 소견에 관한 연구

한대희,김성구,박상호,김성한,조원영,방덕원,조윤행,정의룡,은영근,권영구 순천향의학연구소 2003 Journal of Soonchunhyang Medical Science Vol.9 No.1

Background : Patients with chronic renal fialure have a substantially elevated risk of death from cardiovascular diseases than do the general population. the patients with chronic renal failure are at significantly increased freqeuncy of hypertension, hyperlipidemia, and diabetes mellitus which are known to the risk factors of the coronary artery diseases, and the prevalence of the coronary artery diseases in chronic renal failure patients is highly associated with the hemodynamic disorder and metabolic abnormalities. therefore we expected that the coronary angiographic findings in patients with chronic renal failure should be different from the general population (control groups) and investigated the risk factors contributing to coronary artery diseases. Method : we have retrospectively compared the coronary angiographic findings of 44 patients with chronic renal failure on hemodialysis with that of 88 patients in the general population and investigated the factors contributing to the development and acceleration of coronary artery diseases in patients with chronic renal failure Result : Hypertension and diabetes mellitus which is risk factors for coronary artery disease is significantly increased in patients with chronic renal failure, in coronary angiographic finding the severity of the lesion is worse. the incidence of PCI or CABG of patients with chronic renal failure is more than that of control group but statistically no difference between patients with chronic renal failure and control group. the sex, the duration of disease, the duration of dialysis, serum creatinine in patients with chronic renal failure have no correlation to the prevalence of coronary artery disease and severity of lesion. hyperglycemic patients with chronic renal failure have high incidence of coronary artery disease and are worse in the severity of lesion Conclusions : There is significantly increased the pevalence and severity of involving multiple coronary artery diseses in hyperglycemic patients with CRF.