심한 골병변으로 발현된 기능성 낭종성 부갑상선 선종

전숙,김영희,박지영,고관표,박철영,김덕윤,우정택,김성운,김진우,김영설,고석환 대한내분비학회 2003 Endocrinology and metabolism Vol.18 No.2

낭종성 부갑상선 선종과 심한 골병변을 동반한 부갑상선 기능항진증은 매우 드문 질환으로서, 저자들은 양측 고관절의 통증을 초기 주소로 내원한 환자에서 고칼슘혈증과 부갑상선 호르몬 증가, 골병변의 방사선적 소견을 통해 부갑상선 기능항진증을 진단하고, 경부 초음파와 컴퓨터 단층 촬영, 부갑상선 스캔검사 및 수술중 부갑상선 낭종액 검사 등을 통해 기능성 부갑상선 낭종의 한 종류인 낭종성 부갑상선 선종을 진단하고 수술적 제거를 통하여 정상화된 1예를 경험하였다. A cystic parathyroid adenoma is rare. A case of primary hyperparathyroidism, with the cystic formation of a parathyroid adenoma and a severe bony lesion, is reported. A 52-year-old male was admitted due to pain in both hips and for evaluation of hypercalcemia. The plasma level of the intact parathyroid hormone (iPTH) was elevated to 1424 pg/mL. Ultrasonography and the computed tomography revealed a parathyroid cyst on the left thyroid lower pole. Parathyroid scintigraphy detected a parathyroid adenoma. A radiograph showed a subperiosteal bone resorption on the phalanges, and a brown tumor (osteitis fibrosa cystica) on the femur shaft was noted. A surgical excision of the parathyroid adenoma was performed. The PTH level in the cystic fluid was increased. A histological examination confirmed a cystic parathyroid adenoma. The PTH level was normalized after the operation (J Kor SOC Endocrinol 18:214-220, 2003).

Isolation and Partial Characterization of Proteolytic Enzymes from Stems of Pineapples Cultivated in Cheju Island

高榮煥,姜永周 제주대학교 1990 논문집 Vol.31 No.-

A pineapple is one of the major sources of proteolytic enzymes of plant origin which have been widely used in industry. A bromelain was isolated from stems of pineapples cultivated in Cheju island and its characteristics were partially determined. The optimum temperature and pH for its catalytic activity were 62.5℃ and 7.5 , respectively. Crude enzyme preparations lost catalytic activity rapidly above 40℃ and were stable at pH range 5.6-9.0. Coexistence of substrate casein increased heat stability of the bromelain about 25%, thus the enzyme was stable up 45℃. Its value of Km for casein was 0.1%.

활성슬럿지법에 의한 탄화수소 함유 폐수의 정화

고영환,강경수,김재하,고정삼 濟州大學校 工科大學 産業技術硏究所 1991 産業技術硏究報告 Vol.2 No.-

Activated sludge process which has been widely applied t o the treatment of waste-water was slightly modified to remove hydrocarbons from wastewater. The process of wastewater treatment consisted of two consecutive reactors. Cells of Acinetobacter calcoaceticus were first cultivated in synthetic wastewater containing 3% (W/V) of hydrocarbons. The resulting culture was then exposed to acclimatized active sludge. Hydrocarbon concentrations of the effluent from the process were 0.19-0.21% (W/V). The contents of suspended solid were reduced to 17-53 ㎎/l. The data imply that A. calcoaceticus can be used for the treatment of wastewater containing hydrocarbons.

공황장애의 임상적 특성

고은정,최영희,박기환,이정흠 대한생물치료정신의학회 2000 생물치료정신의학 Vol.6 No.2

Objectives : To clarify clinical features of panic disorder and to compare the characteristics of cognitive patterns, avoidance behaviors, and coping strategies among patients who have panic disorder with or without agoraphobia. Methods : Family backgrounds, cognitive patterns in the first panic attack, coping strategies, and avoidance behaviors were compared among the three groups classified by panic patients with mild agoraphobia(mild PDA=66), severe agoraphobia(severe PDA=71), and without agoraphobia(PD=21) Results : 1) Severe PDA reported significantly high panic attack frequency and more dysfunctional level than PD. 2) Catastrophic thinking of 'dying' in PD was significantly frequent than the other groups. Other fears of 'going craze or loss of control' in severe PDA were the highest among the three groups, though it was not significant. Specific thinking process or interpretation in the first panic attack was not significantly different among the three groups. 3) As avoidance behaviors became worse, the frequency of avoidance behaviors and the patters of avoidance behaviors increased. Conclusions : The results suggested that as avoidance behaviors became worse, the frequency of panic, maladaptive functioning and the patterns of avoidance behaviors increase. This might be why we need to decrease avoidance behaviors through exposure as the treatment.

연령이 다른 Bald/Caj 생쥐의 피부창상치유중 섬유모세포의 동원

유영현,김동환,고재승,한성수,한성수,한성수 대한해부학회 1994 Anatomy & Cell Biology Vol.27 No.4

유방의 관상피내암종에서의 p27_kip1, Cyclin D1 및 p53 단백의 발현

오영륜,송상용,최종순,고영혜,이회정,안긍환 대한병리학회 1999 Journal of Pathology and Translational Medicine Vol.33 No.9

농축공정이 Kindorase의 생산수율에 미치는 영향

고영환,이은현,장규섭 충남대학교 농업과학연구소 1996 농업과학연구 Vol.23 No.2

In order to improve the production yield of kindorase as complex antiphlogistic agent, molecular weight of concentration membrane, membrane configration, temperature, pressure and pH of concentration solution, fouling, etc. were investigated, and the results obtained are as follows ; 1. High production yield was shown using 10k Dalton molecular weight cut-off concentration membrane and spiral membrane made of polysulfone. 2. And it was reasonable conditions for maintaining the concentration solution at 3Bar in pressure. 3. The optimum pH of solution for improving production yield of kindorase were the range of 7.5 to 8.5, and for obtaining better production yield, clean in place(C.I.P) of membrane was treated with 0.1N NaOH at 40 to 50℃ for 30minutes.

송전선로의 고장검출용 마더 웨이브렛 선정과 기본과 추출에 관한 연구

고영훈,이병길,김철환 成均館大學校 科學技術硏究所 1999 論文集 Vol.50 No.2

Due to the challenges facing many utilities worldwide as a result of deregulation, the demand and importance of accurate fault detection and fault location in transmission systems has increased, principally to minimise line outages through effecting repairs expeditiously. This paper presents a novel approach in fault detection for high impedance faults(HIFs) and low impedance faults (LIFs) based on the concept of wavelet transform. It is shown that the fault detection algorithm is highly insensitive to capacitive switching, line switching and arc furnace loads in a 154kV korean model system as generated by EMTP. Also. this paper presents a new approach in extraction of fundamental frequency components using wavelet analysis.

화학과 생물 교과서에서 삼투 개념에 관한 설명 유형 분석

고영환,강대훈,박동조,김동욱,백성혜 한국과학교육학회 2002 한국과학교육학회지 Vol.22 No.4

이 연구에서는 고등학교와 대학교 화학과 생물 교과서에 제시된 삼투 개념에 대한 설명 유형 및 그림표현 유형을 분석하였다. 그리고 고등학교 화학Ⅱ 교과서와 생물Ⅱ교과서의 단원을 분석하였다. 분석 결과, 삼투현상에 대해서는 용매의 확산으로 설명하는 유형, 충돌로 설명하는 유형, 수화로 설명하는 유형, 농도의 평형으로 설명하는 유형 그리고 구멍을 막는 것으로 설명하는 유형 등 다섯 가지 유형으로 설명하고 있었다. 그리고 삼투 개념에 대한 설명 유형과 교과서에 제시된 그림 표현 유형 사이에 일치하지 않는 경우도 분석되었다. In this study, we analyzed types of explanation on osmosis concept that were represented in chemistry and biology textbooks of high school and college. There were 5 types of explanation on osmosis concept. The types of explanation were diffusion of solvent, collision, hydration, equilibrium of concentration and screen of holes. Last two types of explanation were classified into misconceptions. The various types of explanation on osmosis concept might cause to have be a reason that students had many misconceptions and to feel difficult to learn about osmosis concept. Many of textbooks is accord to types of concept explanation and figure explanation on osmosis but some is not

高品質 豚肉 生産을 위한 고구마 사일리지의 開發에 關한 硏究 : 2. 肥肉豚에 대한 고구마 사일리지 給與가 生産形質과 經濟性에 미치는 影響 2. Effects of Feeding the Sweet Potato Silage on Performances and Production Cost of Finishing Pigs

宋瑛敏,高永杜,文勝式,金斗煥,鄭孟和 진주산업대학교 농업기술연구소 1999 農業技術硏究所報 Vol.12 No.-

본 연구는 고구마 사일리지를 이용한 고품질 돈육 생산을 위하여 고구마 사일리지가 돼지에 대한 생산형질과 경제성에 미치는 영향을 조사하였다. 사양시험은 고구마 사일리지를 고구마 70, 맥강 20, 대두박 10의 비율(사일리지 1)과 고구마 70, 맥강 30의 비율(사일리지 2)로 500kg 용 사일로에 충진하여 21일간 발효시켜 제조하고, 급여시기를 각각 체중이 75kg 과 90kg부터 시작하여, 급여시간은 각각 32일과 25일로서 체중 110kg까지 사육하며, 동일한 교배조합(LYD)으로 생산된 육돈 암컷을 3반복, 반복당 18두씩 총 324두를 공시하였으며, 고구마 사일리지 급여량을 하루에 두당 0.4kg씩 공급한 결과는 다음과 같다. 1. 고구마 사일리지를 급여한 경우 개시 체중 75kg과 90kg 공히 종료시 체중, 증체량, 일당증체량 및 사료효율은 배합사료를 무제한 급여하는 대조구 보다 유의적으로 낮았고, 배합사료의 섭취량과 일당사료섭취량은 유의적으로 적게 섭취하였으나, 고구마 사일리지를 건물로 환산하여 합산한 총사료섭취량은 대조구와 고구마 급여구간에 비슷하게 나타났다. 2. 고구마 사일리지를 급여한 경우 배합사료의 섭취량은 줄어들어 배합사료비가 절감되나 고구마 사일리지를 섭취함으로서 총사료비는 비슷하다. kg 증체에 소요되는 사료비는 높게 나타났고, 배합사료급여를 기준한 생산 지수는 고구마 사일리지 급여구가 40∼50% 이상의 사료비가 추가로 소요되는 것으로 분석되었다. This study was carried out to investigate the effects of supplementing sweet potato silages on live performance and production cost in finishing gilts. Two sweet potato silages containing same ingredients with different ratios(silages 1 and 2; 70 and 70% sweet potato, 20 and 30% barley bran, 10 and 0% soybean meal, respectively) were fermented for 21 days in 500 kg-capacity silos. Finishing gilts were fed a commercial finishing diet(CONT), or the same basal diet plus 0.4kg silage 1(TRT 1) or silage 2(TRT 2)/head/day beginning from either 75kg or 90kg of body weight up to approximately 110kg of final weight and the whole experiment was repeated 3 times. 1. TRT 1 and TRT 2 were lesser than CONT in final weight, total weight gain, average daily gain, feed efficiency and total and daily basal diet intake, but not in total dry matter intake including the silage. 2. Compared with CONT, TRT 1 and TRT 2 showed a reduced basal diet cost resulting from the reduced intake of it, but total feed cost was not different between the feeding regimens. Total feed cost per kg weight gain, however, was increased 40∼50% by supplementing the silage.