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정명숙,이춘희 대한마취과학회 1980 Korean Journal of Anesthesiology Vol.13 No.2
Total 65 cases of general anesthesia for operation of congenital anornalies in neonates were performed in Dept. of Anesthesiology, Ewha Womans University Hospital from. January, 1970 to March, 1980. The followings are results of the clinical observations on 65 cases; l) In age and sex distribution of 65 cases, 50 cases(77%) were male and 15 cases(23%) female and the ratio of male to female was 3.3: 1. The 65 cases were divded into 3 age groups and 37 cases(57%) were under 10 day-old age. 2) Indicatians for operation of congenital anomalies were, in order of frequency, GI tract anomalies(62%), head and neck(15%) and abdominal wall anomalies(14%). Amang the GI tract anomalies, imperforated anus was 20%, congenital hypertrophic pyloric stenosis 18% and congenital small bowel obstructoin anomaly 9%. 3) Of the total caaes, 86% (56 eases) had general anesthesia by means of endotracheal intubation with non-rebreathing system and 14% (9 cases) via mask with non-rebreathing system. 4) The primary agent of anesthetics were, in order of frequency, O₂,-N₂O-Halothane(60%), O₂,-N₂O(l8%) and O₂,-Ether(7.7%). 5) The average amount of intravenous fluid administration was 30ml. 6) The average amount of blood loss and whole blood transfusion were 50 ml and 43 ml, respectively. 7) In birth order of 30 cases(46%) were first or second babies although authors couldn't be informed of the orders of siblings from medical records exactly. 8) Three cases had history of administration of sedatives or herb medicine or certain drugs for hepatic and renal diseases during their pregnancy. 9) Three cases(4. 6%) had associated anomalies, such as imperforated anus with vaginal cyst, imperforated anus with hydrocephalus and cleft lip or cleft palate with polydactylism.
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鄭明淑,鄭惠順 梨花女子大學校 韓國生活科學硏究院 1980 韓國生活科學硏究院 論叢 Vol.26 No.-
Dibenzo 18-Crown 6에 의한 나트륨할로겐화물의 추출가능성은 묽힘제로 사용된 양성자성 용매의 종류뿐만 아니라 이들계에 첨가된 양성자성 용매의 양에 관계가 있었다. 양성자성 용매 사이의 추출 가능성의 순서는 폐놀>n-프로한올>n-부탄올>메탄올이었다. 메탄올은 그것의 용매화힘이 n-프로판올이나 n-부탄올보다 크다 할지라도 그것이 수용액상과 우선적으로 섞이는 성질때문에 추출을 우한 묽힘제로서 적당치 않으므로 추출성을 개선하는 데는 유기상이 수용액상보다 중요한 것처럼 보인다. The extraction of sodium halides in presence of dibenzo 18-crown 6 was studied in various benzene-protic mixed solvents. The extractability of sodium halides by dibenzo 18-crown 6 depended on not only the kinds of protic solvents used as a diluent but also tho amounts of protic solvents added to these systems. The order of extractability among the protic solvents was phenol> n-propanol> n-buthanol> methanol. Methanol, though its solvation power is larger than n-propanol and n-butanol, is not suitable as a diluent for extraction because of its preferential mixing property with aqueous. Therefore, it seems that aqueous phase is less important than organic phase in improving extractability.
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鄭明淑 이화여자대학교 사범대학 화학교육 연구회 1960 化學敎育 Vol.- No.3
With a critical investigation of aesthetic conditions thus far published on an lon Exchange Resill (the Proxy Benzyl sulfonic acid-formaldenyde system)the auther was able to Synthesize a better resin. By the PH controland the Choice of combination ratio of the starting materials. The resin has shown a betterion exchange capacity than the conventional ones on market. Theoretically it appears that the more anhydrous sodium sulfite against the amount of phenol the bebberion exchange capacity may be obtained. However in fact the ratio of the compounds for the maximum capacity occupies a definite point as shown in Fig Vill clue to its influence on the three clemetisional structure of the resin The best ratio of phemol to anhydrous sodium Sulfite was found to be 1:0.65in which the ezchange capacity was 2.63meq/g. The addition of sulfuric acid solution in small smoumt to the liquid resin prior to the Conversion to gel-state engancecl the excgange capacity of the resin from 2.63meq/g to 2.95meq/g. Also the addition of sulfuric acid should be controlled so as to render the PH value 9.6as seen in Table Ⅱ. Furthermore the sulfuric acid acldecl shorthened the periocl of solidification as a catalyzer.
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유기용매와 물의 혼합용액에서의 음이온 교환평형에 관한 연구
鄭明淑,康順姬 梨花女子大學校 韓國生活科學硏究院 1975 韓國生活科學硏究院 論叢 Vol.15 No.-
Anion exchange resin selectivities have been measured for bicarbonate and thiosulfate ion against chloride resin in organicaqueous mixed solvent, e.g., acetonewater and npropyl alcoholwater mixtures at 25℃. Anion exchange equilibrium in the organicaqueous media are found to have many factors, such as electrostatic interaction, solvation phenomena, solvent structure, and interaction between resinate and solvent, etc. The selectivity coefficients of bicarbonate and thiosulfate ion against chloride resin are in order of HCO_3^-<S_2O_3^= in organicaqueous mixtures. The resin preferentially absorbs water in mixed solvent. In organicwater mixed solution, resin phase is a much better solvating medium than external solution. A large ion would tend to be further squeezed out of the external solution into the resin phase. In the mixtures, acetonewater and npropyl alcoholwater, the selectivity coefficients of anion against chloride at the given dielectric constant of the solutions are in order of acetone>npropyl alcohol. The effects of the organic solvent are significant.
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e-He³및 e-H³산란과정에서 표적核의 각운동량이 전하 form factor에 미치는 영향
鄭明淑 圓光大學校 1982 論文集 Vol.16 No.2
The charge form factors of He³and H³are calculated up to momentum transfer squared ?? in impulse approximation using the wave function of the three nucleon Faddeev equation with Reid Soft-Core (R.S.C.) potential. We used the numerical wave function of three nucleon system from Harper's thesis. In order to check up the influence of the angular momentum of three nucleon system on the charge form factors in higher region of Q², we decomposed the charge form factors for each component of the numerical wave function and resummed the values of the charge form factors for the components 1-3, 1-5, 1-7, 1-9, 1-11. We got the result that in higher momentum transfer region the higher angular momentum components are more effective.
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유아가 지각한 부모와 교사의 기대에 따른 유아의 자아개념의 차이
정명숙 한국영유아교원교육학회 2007 유아교육학논집 Vol.11 No.2
본 연구는 유아를 대상으로 하여 그들이 지각한 부모와 교사의 기대 정도와 자아개념을 측정하여 유아가 지각한 부모와 교사의 기대에 따라 유아의 자아개념이 차이가 있는지를 알아보고자 하였다. 연구 대상은 어린이집과 유치원에 다니는 만 5세와 만 6세 유아 104명이었으며, 연구도구는 유아가 지각한 부모와 교사의 기대 검사도구와 유아용 자아개념 검사도구였다. 연구결과는 첫째, 유아가 지각한 부모의 학습적 기대와 일반적 기대 모두에 따라서 유아의 자아개념은 차이가 있는 것으로 나타났다. 둘째, 유아가 지각한 교사의 학습적 기대와 일반적 기대 모두에 따라서 유아의 자아개념은 차이가 있는 것으로 나타났다. 따라서 부모와 교사가 학습적으로든 학습외적으로든 자신에게 잘할 것이라고 기대한다고 지각하는 유아의 자아개념이 좀 더 긍정적이라는 것을 알 수 있다. 그러므로 부모와 교사는 유아와 상호작용을 할 때 그들이 기대를 받는다고 지각할 수 있도록 긍정적으로 격려하고 적당한 피드백을 제공해 줄 필요가 있다.
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