Effects of monosodium glutamate and sucrose on the development of Drosophila melanogaster

Chung, Yong Jai,Kang, Soon Ja 梨花女子大學校 韓國生活科學硏究院 1974 韓國生活科學硏究院 論叢 Vol.12 No.-

초파리 (Drosophila melanogaster)의 발생에 대한 monosodium glutamate (MSG)와 sucrose의 영향을 보기 위하여 6가지 농도(0.0, 0.3, 7.0, 1.0, 15.0, 20.0%)의 MSG와 sucrose media에 두 계통의 초파리, 즉 Oregon-R와 Sinchon-I를 사육해서 우화에 나온 초파리의 수를 조사 검토한 결과는 다음 같다. 1) MSG의 처리는 초파리의 두 계통에서 다같이 그 농도가 증가함에 따라 발생에 억제적 효과를 나타내고 있으며 심지어 10%이상의 농도에서는 우화에 나오는 성충을 볼 수 없었다. 2) sucrose의 처리는 초파리 발생에 뚜렷한 억제적 효과를 나타내지는 않았으며, 동시에 촉진적 효과도 볼수 없었다. 3) Muller-5 test는 부정적 결과를 보였는데 이것은 MSG가 mutagenic effect가 없음을 말하는 것이다. 이상의 연구 결과로 미루어 보아, 전번 실험 (Chung4 Hong 1973) 결과와 마찬가지로 MSG는 분명히 초파리의 발생에 대하여 억제적 효과를 갖는 다고 볼 수 있다. In order to reexamine the results of the previous work (chung & Hong 1973) by using sucrose as a second control instead of table sugar which was used in the previous investigation and then to determine the ill effect of MSG on the development of Drosophila melanogaster, the present investigation was undertaken. The two strains of D. melanogaster, Oregon-R, Sinchon-I were used and MSG as well as sucrose (as the second control) media were prepared by adding MSG or sucrose at various concentrations to the standard food media for the present study. Ten flies (male 5, female 5) were placed in each vial and the numbers of F_1 adults emerging from it were counted. The results are presented below: 1) The numbers of F_1 flies decrease as the concentrations of MSG increase, no flies emerge from the medium 10.0% or greater concentration of MSG. 2) The effects of sucrose on the development of drosophilid flies show no inhibitory effects but does not exhibit an enhancing effect which was shown in the previous work. 3) The numbers of F_1 flies produced in the Sinchon-I strain are a little greater than in the Oregon-R. But this difference is not considerable as in the previous investigation. 4) The Muller-5 test shows a negative result, suggesting that MSG may be not mutagenic. Thus the results of the present experiment is roughly agreed with the previous one, confirming that MSG has an ill effect on the development of Drosophila melanogaster.

慢性骨髓炎 瘻孔周圍病巢에 合倂한 扁平上皮癌의 二例 : Report of two cases

鄭仁熙,朱珽彬,金光會,鄭淳萬 醫藥係社 1965 綜合 醫學 Vol.10 No.8

동서양의 식용꽃에 대한 고찰 : 조리방법을 중심으로

김영순,이정희,오순덕,정은미,최지영,유은순,장정미,정진선,하상민 高麗大學校 倂設 保健大學 保健科學硏究所 2001 保健科學論集 Vol.27 No.2

Edible flower means a flower that is good to eat is subject to either cooking or appetizing. In general, people eat edible flower as raw so that the loss of vitamin and inorganic are minimal. Edible flower is usually utilized as salad material or aromatic, decoration for jelly or cake and solid stuff in soup. Thus, decorating food by edible flower improves flavor, fragrance and appetite. Edible flower serves various purposes both east and west. In Korea, Edible flower is mainly subject to soup, cooked potherbs, frying, tea stuff, brewing and etc, whereas in Japan, its various usage covers cooked potherbs, pickle, sliced raw fish, frying, salad, jelly and decoration. On the other hand, Edible flower is used as numerous salad and tea stuff, condiment, roasting, meat, sweets and desserts in Western Hemisphere.

Pseubomonas aeruginosa의 Temperature Sensitive 突然變異體의 유도와 분리

유관희,정기흥,정순정,이형환 건국대학교 1983 論文集 Vol.16 No.1

Sixty-one temperature-sensitive mutants of Pseudomonas aeruginosa have been isolated from the mutagenized culture with N-methyl-N'-nitro-Nitrosoguanidine. The mutagen was treated at 36℃ and the ts-mutants were isolated at the non-permissive temperature of 42℃ by size of colony and growth. Twenty-five mutants were smaller in the size of colonies at 42℃ than those of 36℃, and thirty-sin mutants were not growed at 42℃.

패러글라이딩 사고에 대한 분석

김승환,김인병,정순미,정성필,장석준 대한외상학회 1999 大韓外傷學會誌 Vol.12 No.1

$quot;Background: Paragliding injuries are increasing recently due to the growing popularity of this sport. This topic has been discussed in numerous journals in the European countries with large mountains, such as Austria, Germany and Switzerland, Those studies gave information regarding the flight phase during which an injury ocurred, the type and site of injury, and suspected reasons for the accidents. This study was done to compare our data to those of other nations and give preventive advices to reduce injuries occurring during paragliding. Method: Nineteen paragliders documented as having injuries during paragliding at Chung-Ju, Korea from 1990 to 1997 were included in the study. Their accident reports including medical records, were analyzed retrospectively. Result: Eighteen of the injured were male with one female and their mean age was 25.6 years old. Five injuries were suffered during take-off, of which technical error was the cause in most cases. Also, 5 injuries occurred during flight due to a sudden change of thermal and wind condi- tions. The majority of injuries were suffered during the landing period, affecting 9 paragliders. They were mostly due to forced landings, unexpected obstacles, and sudden change of wind conditions. Thirty-three percent suffered spine trauma and 29% were involved in injuries of the lower extremities. Upper limb injuries occurred in 19%, and 19% also suffered cerebral concussion or contusion. Conclusion: We have found that spine and ankle injuries were commonly occur during paragliding, especially the landing phase. Proper knowledge of the procedures, adequate training and appropriate foot wear could help in reducing injuries while paragliding.$quot;

DC Arc로의 유동/열전달 해석 - 용강영역(2)

정순효,변지영,오영주 대한금속재료학회 2003 대한금속·재료학회지 Vol.41 No.8

Heat- and fluid-flow phenomena in the molten steel region in a DC arc furnace were investigated by simultaneous analysis of electromagnetic, flow and temperature fields. It was found that the flow pattern in molten steel was determined by electromagnetic and buoyancy forces rather than the shear force at the melt surface due to the high velocity plasma arc. While the short arc with high current made the hot region beneath the arc expanded, the long arc with high current drove the melt temperature high. And the low arc current led to the non-homogeneous temperature distribution of the melt because the bottom region of the melt was not stirred sufficiently.

친환경농산물의 경제성분석

정대수,이종성,김기영,오주성,정원복,정순재 東亞大學校 大學院 2002 大學院論文集 Vol.27 No.-

In this study, questionnaire were made to environment- friendly producers of rice, lettuce and persimmon regarding farm management methods in low-input production method utilizing organic materials. The average gross revenue of environment-friendly production of rice was about \2,510, and their average yield was 389㎏/10a, which are 22% and 34% lower, respectively, than the conventional rice production case. lettuce was about \3,280/㎏, and their average yield was 4,299㎏/10a, persimmon was about \1,170㎏, and their average yield was 1,645㎏/10z. In order to improve the environment- friendly productions of rice, lettuce and persimmon industry, active cooperation is needed among the producers, govermment ad researchers more than ever. Among other things, production cost reduction and quality improvement with lower chemical residues are part of the urgent matters to be done.

정상 성인에서 운동이 혈중 Cortisol과 포도당 및 전해질 농도에 미치는 효과

정진상,정순열,안태순,고성은 최신의학사 1993 最新醫學 Vol.36 No.7

알콜과 DIAZEPAM 이 흰쥐의 공포학습과 소거에 미치는 효과

정봉교,윤병수,박순권 한국심리학회 한국심리학회지 생물 및 생리 Vol.10 No.1

본 연구는 알콜과 diazepam의 투여가 흰쥐의 공포학습과 소거에 미치는 영향을 알아보고자수행되었다. 공포조건형성시 동물들은 관찰상자에서 8회의 1초간 지속되는 0.6㎃ 강도의 전기충격을 받았다. 동물들은 소거시에는 전기충격을 받았던 관찰상자에 전기충격이 없이 노출되었다. 실험 1은 알콜과 diazepam의 투여가 조건공포의 지표인 행동동결에 미치는 효과와 두 약물의 상호작용을 검증하였다. 공포학습 직후의 관찰과 24시간 후의 파지검사에서 ethanol 1.2g/㎏ 또는 diazepam 5.0㎎/㎏을 투여받은 집단 그리고 ethanol 1.2g/㎏을 동시에 투여받은 diazepam 0.5㎎/㎏ 집단 또는 diazepam 1.0㎎/㎏ 집단 모두가 saline 통제집단에 비해 공포학습의 지표인 행동동결의 감소를 보여 주었다. 특히 ethanol 1.2g/㎏과 동시 투여된 diazepam 1.0㎎/㎏은 조건행동동결의 감소효과를 상승시켰다. 이 결과는 ethanol과 diazepm이 공포학습을 방해하여 불안감소효과를 산출하며, 두 약물의 동시투여는 용량의존적으로 그 효과를 상승시킬 수 있음을 시사한다. 실험 2는 ethanol과 diazepam의 영향하에서의 소거가 약물이 투여되지 않은 상태로 전이되는가를 검증하였다. 그 결과, 소거훈련전에 ethanol 1.2g/㎏ 또는 diazepam 5.0㎎/㎏을 투여받은 집단은 약물이 투여되지 않은 소거검사시행에서 소거의 실패 즉 행동동결의 회복을 보였다. 이 결과는 두 약물이 용량에 따른 상태의존적 소거를 산출함을 보여주는 것이다. 마지막으로 두 약물의 상호작용효과와 상태의존적 공포소거현상에 대한 실용적 측면을 논의하였다. This study investigated the effects of alcohol and diazepam on conditioned fear and extinction in Sprague-Dawley male rats. Fear was conditioned by pairing an experimental chamber with footshock and was assessed by observing freezing. During extinction session, rats were exposed to the chamber without shocks. In Experiment 1, the effects of ethanol and diazepam on fear acquisition and retention were examined. The interaction between ethanol and diazepam on conditioned freezing was also tested. Diazepam 5.0㎎/㎏ and ethanol 1.2g/㎏ decreased freezing response immediately following the shocks and in retention test. Diazepam 1.0㎎/㎏ interacted synergistically ethanol 1.2g/㎏ to reduce conditioned freezing. These results demonstrate a significant dose-dependent anxiolytic effect due to the combined treatment of ethanol and diazepam. Experiment 2 investigated whether fear extinction conducted under the influence of ethanol and diazepam transfer to the undrugged state. The groups that received extinction with either ethanol 1.2g/㎏ or diazepam 5.0㎎/㎏ showed significantly more freezing than the saline control during undrugged test but those with either ethanol 0.6g/㎏ or diazepam 2.0㎎/㎏ did not. These result suggest that ethanol and diazepam produce state-dependent fear extinction in dose-related manner as indicated by renewed fear during undrugged test. The practical implications for both the behavioral interaction effect between ethanol and diazepam and the state-dependent extinction with ethanol and diazepam are noted.

지역사회 정신보건관리와 정신전문간호사의 역할

鄭順兒 서강전문대학 1994 論文集 Vol.13 No.-

The focus world-wide for psychiatric care has moved from the large hospital to the community. In Korea, because of the lack of community mental health services, there are increasing the relapse, readmission and institutionalization of psychiatric patients. Korean mental health must soon plan for the facilitation of deinstitutionalization and the on-going care for the discharged patients. The mental health policies for 21C in Korea have to pursue brief hospitalization, non-hospitalized treatment, transitional housing services and vocational rehabilitation. Nurses are by far the largest professional group in the psychiatric services. Nurses have played a pivotal role in bringing about the changes to a more community oriented psychiatric service. The roles of psychiatric nurse practitioner in community are promotion of mental health, prevention and early identification, counseling & education, home visiting, partial hospitalization program and rehabilitation services in mentally ill.