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난소암조직 Acid Deoxyribonuclease의 분리와 성상에 관한 연구
김두상,김영신,고재경,한중수 한양대학교 의과대학 1992 한양의대 학술지 Vol.12 No.1
In order to find out a possible role of acid deoxyribonuclease (DNase) in carcinogenesis of the ovary, activity of the enzyme was measured and the nature of the enzyme was studied in serous cystadenocarcinoma and endodermal sinus tumor of the ovary following the purification of the acid DNase in the tumor tissue of the ovary. (1)The acid DNase activity was greatly increased in the tumor tissues of the ovary, serous cystadenocarcinoma and endodermal sinus tumor tissues, while neutral and alkaline DNase activities were unchanged in the tumor tissues. This may indicate that the acid DNase can be used as a biochemical marker for the ovary tumors. (2)Proteins in the tumor tissues of the ovary were separated by a DEAE-cellulose column chromatography into 7 peak, respectively, of which one peak protein each appeared to be specific for serous cystadenocarcinoma and endodermal sinus tumor. (3)Acid DNases in the tumor tissues of the ovary were isolated into a single peak, respectively. The size of peak in the tumor tissues was greater than that in the control tissue of the ovary, indicating that the acid DNases in the tumor tissues were activated, but not specific for the tumors. (4)Acid DNases in the tumor tissues of the ovary were partially purified by centrifugation and a DEAE-cellulose column chromatography. The purified enzyme was highly active against double stranded DNA (ds-DNA), even though some activity was found against single stranded DNA (ss DNA). Observations that acid DNase from serous cystadenocarcinoma tissue was highly active and specific to ds DNA compared with ss DNA suggested that the enzyme might play a role in transforming normal ovarian cells into cancer cells.
張景俊,金柱漢,趙斗英 大韓神經精神醫學會 1987 신경정신의학 Vol.26 No.2
The relationship between psychosis and epilepsy has been discussed since antiquity. But the question of psychosis among epileptic patients with respect to the incidence, the relationship between psychosis and the type of epilepsy, and the lateralization of the epileptogenic focus is still controversial. The authors conducted this clinical investigation to clarify these various controversial relationships, and to contribute to the prevention and treatment of psychosis in epilepsy. For this retrospective study, the 962 epileptic patients who had been treated in the Yong-In Mental Hospital over a 5-year period extending from November 1981 to April 1986 were analyzed. The results were as follows: 1) Among the 962 epileptic patients, 38 patients (4.0%)manifested psychotic symptoms. 2) Concerning the time interval between the onset of epilepsy and the onset of psychosis in these 38 patients, it was found to be an average duration of 11 years and 8 months(ranging from a minimum of 2 years to maximum of 23 years). The older an individual was when he became an epileptic patient, the longer the period of time passed for the psychosis to develop. 3) Regarding the relationship between the type of epilepsy and the type of psychosis, those patients that manifested a paranoid-hallucinatory state commonly experienced primary generalized seizure. 4) The difference between paranoid-hallucinatory state patients with respect to left-sided focality of the EEG was statistically significant. i.e., schizophrenia-like stae patients showed less EEG laterality to the left. 5) The difference between paranoid-hallucinatory state patients and schizophrenia-like state patients with respect to responsiveness to neuroleptics was statistically significant, i.e., neuroleptics had significantly less effect on patients in the schizophrenia-like stae than on patients in the paranoid-hallucinatory state. The effects of neuroleptics were not correlated with the age of the patient. Finally, ideally further research in this particular area should rely on prospective longitudinal studies of young, non-psychotic epileptics.
辛昌男,趙斗漢,吳炅煥 충남대학교 자연과학연구소 1980 學術硏究誌 Vol.7 No.2
Artificial pollen germination was examined to determine the suitable concentration of sugar medium, temperature and pH in four species of Lilium. Germination ratio was highest in the 5% sugar medium and at 25℃. And the most favorable pH was 6. In these conditions, elongation of pollen tube was also longest.
한국재래흑염소에서 발정 및 과배란 유도와 외래유전자 주입에 적합한 1세포기 수정란의 채취
신상태,이두환,김명철,이운규,이철상,한용만,이경광 충남대학교 수의과대학 동물의과학연구소 1998 動物醫科學硏究誌 Vol.6 No.-
Three different treatments for induction of estrus in Korean native black goats were compared: follicle stimulating hormone(FSH, FSH-p^TM), FSH combined with MAP(intravaginal impregnated sponges, Veramix^ⓡ, containing 60 ㎎ medroxy progesterone acetate for 14 days), and FSH combined with progesterone(Ovaron^ⓡ, 10 ㎎ IM for 10 days) and PGF_2α(Lutalyse^ⓡ, 3 ㎎ IM at first FSH injection). FSH for inducing estrus and superovulation was given a total 20 ㎎ intramuscularilly in decreasing dosage injections twice daily over 4 days. The MAPs were withdrawn at the 3rd day of FSH injection. Estrus observations were conducted every 6 hours from last FSH injection for 24 hours by placing the does with fertile male goats. Estrus and superovulation were more successfully induced with treatment of MAP + FSH than other treatments(FSH only, or progesterone + PGF_2α + FSH) (estrus induction; 100 vs 42.8 and 71.4%, ovulation points; 11.4 vs 5.4 and 4.4, respectively). The effect of gonadotropin releasing hormone(GnRH) on the ovulation rate was also examined. However, no difference was observed for inducing ovulation with treatment or dosage(100 ㎍ 200 ㎍) of GnRH. Low midline laparotomies were performed, and then ovarian responses (ovulations and follicular development) were examined by exteriorization of the reproductive tracts. Ova were recovered from oviducts by retrograde flushing 60-146 hours after MAP removal, and were classified the developmental stages. Overall 66.1% (236/357) of recovery rate was obtained from 30 superovulated does. The optimal recovery time of microinjectable 1-cell zygotes was approximately 72-76 hours after MAP removal.
정헌,박경석,이경웅,박기두,최한수 조선대학교 전자정보통신연구소 2002 電子情報通信硏究所論文誌 Vol.5 No.2
The research about the AMR has been progressed, which can bridge a disadvantage that a robot performs under a position unmoved. The AMR-Research constitutes skelton, path planning, AMRcontrol, sensor fusion and obstacle avoidance etc... The path planning of autonomous mobile robot use two method. One is global path planning and another is local path planning. In this paper, we study the local path planning of autonomous mobile robot move in unknown enviroment. This local path planning is based on neural network using the direction indicator rules learning. Also the system is made up of sensor system. The experimental results show that the developed direction indicator system operates properly and strongly at circumstance