中學 科學敎育의 探究學習에 대한 評價問項 開發(Ⅰ)

奇宇恒,權炳奎,朴德圭,이병교,鄭遠佑,金裕漢 경북대학교 과학교육연구소 1984 科學敎育硏究誌 Vol.8 No.-

The purpose of this study is to achieve the individualized inquiring learning which is centered on students by improving the method of the evaluation of the inquiry learning in the science class in a multi-student class. Therefore the author made the table of specification for scientific achievements of the abilities of inquiring by analyzing the abilities of inquiring according to the content of science and five basic experiments of each unit inthe first grade of of middle school, ant then made the paper and pencil and performance test items for the evaluation of the abilities of inquiring. The paper and pencil test was taken after the experimental and observational class, and performance test was taken in the way of the students' self evaluation, peer evaluation and Tester evaluation. The results are as follows: 1) In operation of the inquiry learning by two experiments, performance test items and 13 the paper and pencil test items made for evaluation of the abilities of inquiring could be applied usefully. 2) Correlation coefficient between paper and pencil test and performance test is .362 and it is very low. Therefore it is desirable that performance test be used for the evaluation for the abilities of inquiring which cannot be evaluated by paper and pencil test. 3) In evaluation of the abilities of inquiring by performance test on five basic experiments, it is more desirable that 'the use of microscope' is presented in the way of peer evaluation or peer and Tester evaluation, 'the observation on epidermis of onion cell' in the way of peer evaluation, and self-evaluation. 4) Skill of the abilities of inquiring in experimental and observational class can be evaluated correctly through performance test.

Microform Cleft Lip 환자의 분류에 따른 수술적 치료

박철수,엄기일,황세휘,안덕균,김잉곤 大韓成形外科學會 1999 Archives of Plastic Surgery Vol.26 No.3

The microform cleft lip is the mildest expression of cleft lip and nose deformity, but it has no specific definition, classification, and few methods have been reported for its correction. It is characterized by deformity of the nostril, skin striae of the upper lip, notching of peaked Cupid's bow, deformity of the vermilion, and anomaly of the upper lateral incisior and alveolar ridge on the affected region. Sixty-three microform cleft lip patients were operated on between Dec. 1993 and Sep. 1998 in our department(29 males and 34 females). The age of the patients ranged from 5 months to 30 years(Mean 9 years). We classified and treated the microform cleft lip as follows: Class Ⅰ: Cleft lip nose with very slight lip deformity Class Ⅱ: Minimal lip deformity without vermilion notching ClassⅢ: Mild lip deformity with slight vermilion notching. The goals in the correction of a microform cleft lip are to obtain an esthetically pleasing upper lip and nose, and to reestablish muscle continuity for improved function. To attain these goals, we used the above classification and satisfactory results were obtained by treating the microform cleft according to the classification.

개에서 피지선 과형성의 진단 및 치료 증례

박희서,손화영,정성목,송근호,조종기,이영원,신상태,김명철,김덕환,박성준 충남대학교 수의과대학 동물의과학연구소 2004 動物醫科學硏究誌 Vol.12 No.-

An eleven year old castrated male Maltese was presented to the Veterinary Medical Teaching Hospital of Chungnam National University. In physical examination, approximately 0.5 cm round mass was observed on tail base. This small elevated mass has also shown alopecic and firm configuration. It was differentially diagnosed as sebaceous adenoma and hyperplasia by fine needle aspiration. After surgical removal, the sample was diagnosed as sebaceous hyperplasia by histopathological examination. It has not yet shown any signs of recurrence and prognosis has teen good.

STS316L 용접부의 피로거동 및 초음파시럼에 의한 열화특성 평가

남기우,박소순,안석환,도재윤,박인덕 한국비파괴검사학회 2003 한국비파괴검사학회지 Vol.23 No.2

STS316L은 인성, 연성, 부식저항성 등 우수한 기계적 성질 때문에 에너지환경설비 등 구조물에 널리 이용되고 있다. 그러나, 용접구조물은 가혹한 환경하에서 경년열화가 심각하다. 지금까지의 연구들은 주로 용접부의 피로균열진전거동에 관하여 수행되었고, 피로균열진전속도식의 재료상수와 비파괴적 평가의 상관성에 관한 연구는 거의 없었다. 본 연구는 STS316L 용접부의 피로균열진전 거동을 조사하고, 초음파 파라미터로 열화특성을 평가하고 시간-주파수 분석으로 해석을 하였다. 본 연구 결과는 용접구조물의 사용기간 중 피로수명 등을 예측하기 위한 기초 데이터로서 사용될 수 있다. STS316L had been used as the structural material for energy environmental facilities, because austenite stainless steels like 316L have superior mechanical properties of which toughness, ductility, corrosion resistant and etc. However, those welded structures are receiving severe damage due to increasing of the aged degradation. Most studies until now have been carried out against fatigue bahaviors of weldments, and were not well studied on nondestructive evaluation methods. In this study, the fatigue crack propagation behavior of STS316L weldment usually used for vessels of the nuclear power plant was investigated. Also, the degradation characterstics of 316L stainless steel weldments were evaluated by the ultrasonic parameter such as ultrasonic velocity, attenuation factor and time-frequency analysis. The results of this study can be used as a basic data for the prediction of the fatigue crack life of weldments structures without disjointing or stopping service of structures in service.

내분비 기능이 없는 췌장 도세포 종양-1예 보고

정재걸,박건춘,윤상기,한덕종,조영국 울산대학교 의과대학 1993 울산의대학술지 Vol.2 No.1

Nonfunctioning pancreatic endocrine tumor is a rare disease without showing any specific clinical manifestations. Indolent growth of this tumor has a prognosis in between functioning endosrine tumor of pancreas and exocrine adenocarcinoma. We experienced a nonfunctioning pancreatic islet tumor in 59 year old male patient. The tumor in the body of pancreas was clinically silent and had no hormonal activity in immunohistochemical staining

Na/Si(111)계의 초기 산화과정에 대한 XPS 연구

이득진,안기석,황찬국,장현덕,박종윤 성균관대학교 기초과학연구소 1995 論文集 Vol.46 No.1

X-선광 전자분광법을 이용하여 Na의 흡착에 의해 형성되는 Si(111)7×7-Na과 Si(111)3×1-Na 표면의 초기 산화과정에 대하여 연구하였다. Si(111)7×7-Na 표면은 깨끗한 Si(111)7×7 표면에 비하여 산화가 더욱 잘 일어나지만, Si(111)3×1-Na의 경우 산소와 거의 반응하지 않음을 알 수 있다. 또한 Si(111)7×7 표면과는 달리, Si(111)7×7-Na 표면에 1 ML의 Na를 흡착시키고 산소를 100L 노출한 경우 0 ls 내각 스펙트럼에 두 종류의 산소성분이 존재를 함을 알 수 있다. 산소의 노출량이 증가함에 따라 낮은 운동에너지 성분의 세기는 계속 증가를 하지만, 높은 운동에너지 쪽의 성분은 초기에 포화되었다. 이러한 0 ls 내각 스펙트럼의 변화와 Na KLL Auger peak intensity 증가로부터 Si(111) 7×7-Na 표면에 흡착되는 산소는 Si-0-Si, 그리고 Si-0-Na 두가지의 결합형태로 존재함을 예상 할 수 있다. 또한, Si(111)7×7-Na 표면에 주입되는 산소 노출량이 증가함에 따른 Na KLL Auger peak intensity가 증가하는 현상에 대하여 논의하였다. The initial oxidation of Si(111)7×7-Na and Si(111)3×1-Na surfaces have been studied by means of X-ray photoelectron spectroscopy(XPS). The Si oxidation rate of Si(111)7×7-Na surface was much enhanced more than that of the clean Si(111)7×7, but the Si(111)3×1-Na surface hardly reacted with oxygen. It shows that 0 1s peak of the Si(111)7×7-Na surfaces for 100L O_2 exposure consists of two components, coming from a different oxygen bonding configuration. From the change in intensity of two component of 0 ls and the increase of Na KLL peak intensity with increasing O_2 exposure, it is found that one component originates from Si-0-Si bonding at the lower kinectic energy and the other component comes from the Si-0-Na bonding at higher kinectic energy. Also, we have discussed a possible interpretation for the abnormally increase of Na KLL peak intensity.

페디그리 사료 섭취에 의한 급성신부전증의 치료 1례

김영실,신영지,박정희,김명철,신상태,조종기,김덕환 忠南大學校 獸醫科大學 動物醫科學硏究所 2005 動物醫科學硏究誌 Vol.13 No.-

A 4 years old male poodle dog with gastro-intestinal distress was referred to the Veterinary Medical Teaching Hospital of Chungnam National University. The patient was presented with history of vomiting, hemorrhagic diarrhea and inappetence. Laboratory evaluation revealed that WBC (23.8 x 10^(3)/㎕). BUN (87.9 ㎎/㎗), creatinine (7.3 ㎎/㎗) and phosphate (9.6 ㎎/㎗) was elevated, and proteinuria, hematuria and bilirubinuria were detected on urinalysis. Increased renal cortical echogenicity and parenchymal calcification of kidney were observed by ultrasonography. Based on the findings of history, clinical signs, laboratory assessment and ultrasonography, it was diagnosed as acute renal failure. The present patient showed favorable therapeutic response by fluid therapy. diuretics, peritoneal dialysis and blood transfusion.

주사전자현미경을 이용한 토마토에 발생하는 아메리카잎굴파리(Liriomyza trifolii)의 외부형태적 특징

윤영남,김기덕,박수진,김남성,서미자,채순용 충남대학교 농업과학연구소 2000 농업과학연구 Vol.27 No.1

SEM을 이용하여 아메리카잎굴파리(Liriomyza trifolii)의 암 ·수컷 성충의 외부형태적 특징을 살펴보았다. 더듬이에 있어 감각모의 3가지 형태는 더듬이가는마디(funicle)에서 관찰되었으며, 모상감각기(trlchold sensillum)는 말단 부위가 뽀족한 특징적인 형태를 하고 있고 감각기들 중에서 가장 많이 분포하고 있다. 원추상 감각기(basiconic sensillum)는 길이가 13㎛, 지름이 1.4㎛에서 1.2㎛인 원형곡선형이다. 홈형 감각기(grooved sensillum)는 간상(peg) 끝에서 나온 손 모양을 하고 있으며, 이 모든 감각기들은 후각과 연관되어져 있는것으로 추정된다. 구기는 홉즙형으로 작고 펼쳐진 윗입술(labrum)과 합쳐져서 하나의 연결된 주둥이(rostrum)을 형성하고 있다. 가느다란 한 쌍의 작은턱수염(maxillary palp)은 긴 관 모양으로 각각의 세로로 이어져 있다. 발마디는 5마디로 이루어져 있으며 그 한가운데에는 패드모양의 흡착반(pulvillus)과 가시모양의 발톱사이돌기(empodium)가 있다. 아메리카잎굴파리는 흡착반과 발톱사이돌기에서 미끄러운 표면에 부착할 수 있는 물질을 분비한다. 수컷의 생식기는 매우 복잡하며 삽입구(aedeagus)는 생식기관으로서 가장 일반적인모양이다. 반면에 암컷의 생식기는 상대적으로 간단한데 이 구조는 외부로 돌출된 관모양이었다. 또한 이러한 결과를 이미 발표된 다른 여러 종의파리와 비교하였다. The external morphology of male and female of Liriomyza trifolii (Burgess) was studied using the scanning electron microscopy (SEM). Three types of sensilla were identified on the funicle of antennae. The trichoid sensilla were most conspicious and distributed with a characteristic sharp structure at the apical end. Basiconic sensilla were showed distal curvature about 13㎛ long and 1.2㎛ to 1.4㎛ in diameter. Grooved sensilla were showed a finger-like projections at the peg apex. The function of these sensilla likely to be olfactory. The mouthparts were adapted for sucking food, and formed a elongate rostrum which was incorporated with labrum. The labrum was a small and flap-like shape. The slender and paired maxillary palp seemed to combine with each other lengthwise to long tube. The tarsus typically consisted of 5 segments, which might be variously modified, principally by thickening or flattening. The segment healed a pair of claws. Beneath the claws, there was a pair of pad-like pulvillia and a bristle-like median empodium. L. trifolii secreted on the pulvillus and empodium an adhesive substance that enable them to cling to smooth surfaces. Male terminalia was complicated. The name 'aedeagus' seemed the best available general term for the copulatory organ, otherwise, female terminalia was usually relatively simple. This structure was reduced and formed a telescopic, eversible, and tubular ovipositor.

Interrelation of Cyclin D1, Cyclin E, and p27Kip1 Expression on Tissue Arrays of Breast Cancer

Sehwan Han,Young-Duck Kim,Hong-Yong Kim,Hong-Joo Kim,Kyeongmee Park,Byung-Noe Bae,Suk Yong Ryu,Ki Hwan Kim 대한암학회 2002 Cancer Research and Treatment Vol.34 No.5

Purpose: To evaluate the clinical impact of the alteredexpression of cell cycle regulators in stage I and II breastcancers.Materials and Methods: The interaction between cyclinD1/E and p27Kip1 expressions were analyzed usingtissue microarray (TMA) technology in 133 breast cancers.Data from the immunohistochemical assays of 3molecules were merged, and analyzed, with a Ki67labeling index of the same tumors.Results: Cyclin D1 was expressed in 72 breast carcinomas(54.1%) and cyclin E in 60 (45.1%) out of the 133breast carcinomas. Expressions of cyclin D1 and cyclinE were inversely related to each other, and significantlyassociated with the estrogen receptor (ER) expressionand differentiation of the breast carcinoma. The expressionof cyclin E was significantly decreased in tumorsexpressing cyclin D1 (p=0.022). There was a trend forcyclin D1 expression to increase in tumors expressingp27Kip1 (p=0.053), but the expression of cyclin E didnot correlate with p27Kip1 expression. The Ki67 labelingindex was markedly increased in tumors expressing cyclinE, whereas it was significantly decreased in the cyclin D1or p27Kip1 expressing-tumors. From survival analysis,cyclin E expression was the only significant variable forthe prediction of poor survival.Conclusion: The abnormal expressions of cell cycleregulatory molecules are prevalent, and interrelated witheach other in breast cancer. Integration of TMA technologyallowed a high-throughput analysis for correlating molecularthe in situ findings, with the clinico-pathologicinformation. Among the three molecules studied, thecyclin E had a prognostic implication for stage I and IIbreast cancer. (Cancer Res Treat. 2002;34:388-393)

Cs이 흡착된 Si(111)7×7 표면의 초기 산화과정 연구

황찬국,안기석,이득진,장현덕,박종윤 성균관대학교 기초과학연구소 1995 論文集 Vol.46 No.1

X-ray photoelectron spectroscopy를 이용하여 상온에서 Cs이 1ML 흡착된 Si(111)7 × 7 표면의 초기 산화과정에 대하여 연구하였다. 산소의 주입량과 Cs의 흡착량의 변화에 따른 0 1s, Cs 3d_(5/2), 그리고 Si 2p 스펙트럼의 변화를 관측하였다. 이러한 측정결과, 표면에 흡착되는 산소량은 Cs의 임계피복량(약 0.5ML)이상에서 급격한 증가를 보임을 알 수 있다. 따라서 Si(111) 7 × 7-Cs 표면의 산화과정은 non-local mechanism을 따르는 것으로 이해할 수 있다. 또한 0 1s 스펙트럼에 서로 다른 chemical environment를 가진 두 종류의 산소 성분이 존재하는 것을 알수 있다. 이러한 두 종류의 0 1s 성분중 높은 운동에너지 성분의 세기는 Cs 흡착량에 의존하며 낮은 운동에너지 성분은 Cs이 완전히 탈착된 후에도 남아있다. 그리고 산소 주입량이 증가함에 따라 Si 2p peak의 세기는 감소하는 반면 Cs 3d_(5/2) peak의 세기는 거의 일정하다. 이러한 결과로부터 Si(111) 7 × 7 표면에 주입되는 산소원자는 Si-0-Si, Si-0-Cs 두 종류의 결합형태를 가지는 것으로 예상된다. We have studied initial oxidation of Cs-adsorbed Si(111)7×7 surface using X-ray photoelectron spectroscopy at room temperature. It was measured that the changes of 0 1s, Cs 3d_(5/2) and Si 2p spectrum with increasing O_2 exposure and Cs deposition time, respectively. The 0 1s/Si 2p peak intensity ratio rapidly increased at 0.5ML Cs coverage, which means that the non-local mechanism is favored on the Cs-promoted oxidation. The 0 1s peak observed consists of two chemical-shifted components. The 0 1s peak intensity of high kinetic energy component depended on the Cs coverage while low kinetic energy component still remained after complete Cs desorption. The Cs 3d_(5/2) peak intensity was nearly constant, though the Si 2p peak intensity decreased with increasing O_2 exposure. These results suggest that oxygen atoms adsorbed on the Si(111)7×7 surface have two different bond configurations such as Si-O-Si, Si-O-Cs.