Nocodazole 투여에 따른 척수신경절세포 미세소관의 변화

박정현,이융창 대한해부학회 1995 Anatomy & Cell Biology Vol.28 No.2

이중액막에 의한 우라늄(VI)연속추출의 해석

현영진 濟州大學校工科大學産業技術硏究所 1995 尖端技術硏究所論文集 Vol.6 No.-

외수상 우라늄(VI)농도를 1,000ppm으로 유지하고 에멀젼 유기상의 유속과 연속상의 유속을 변화시키면서 연속식 추출조에서 우라늄(VI)추출을 수행하였다. 우라늄(VI)이 D₂EHPA담체함유 이중액막에 추출되는 기구는 Corrected Advanced Front Model에 의해 해석되었다. 이 해석기구에 기초하여 연속식 우라늄(VI)추출모델을 설정하여 실험치와 비교하였다. 본 실험범위에서는 연속상의 유속과 에멀젼 유기상의 체류시간이 우라늄(VI)추출효율에 기여하는 조업변수임을 확인하였다. 연속식 우라늄(VI)추출시 에멀젼 유기상 유속을 일정하게 유지하여 연속상 유속이 증가할수록 추출평형에 빨리 도달하였다. 한편 연속상 유속을 일정하게 유지하여 에멀젼 유기상 유속의 증가할수록 추출평형에 늦게 도달하였다. 우라늄(VI)추출평형에 도달하는 시간이 빠를수록 우라늄(VI)의 추출효과가 감소하였다. 우라늄(VI)추출향상에 영향을 미치는 주 정상조업변수는 에멀젼 유기상의 체류시간이 아니라 연속상 유속으로 나타났다. 본 연구에서는 D₂EHPA담체함유 이중액막에의한 우라늄(VI)연속추출시 추출평형에 이르는 시간이 빠르면서 추출효과를 향상시킬수 있는 최적조업조건 추산이 주요과제로 제시할 수 있었다. The uranium(VI) extraction in the continuous vessel was carried out with the flow rates of continuous and organic phase. The initial concentration of uranium(VI) in the external aqueous phase was 1,000 ppm. The mechanism of batch uranium(VI) extraction through the double liquid membrane mediated by D₂EHPA was interpreted by the corrected Advanced Front Model. The continuous uranium(VI) extraction was analyzed by the extraction efficiency due to the above model. The times required for uranium(VI) extraction equilibria decreased with the increase of flow rates in the continuous phase under the constant flow rates in the organic emulsion phase. On the other hand, the times required for uranium(VI) extraction increased with the increase with the increase of flow rates in the organic emulsion phase under the constant flow rates in the continuous phase. Therefore the extent of uranium(VI) extraction decreased with the decrease of the times required for the uranium(VI) extraction equilibria. The main operating variable to increase the uranium(VI) extraction efficiency was proved to be the flow rates of continuous phase. The prediction of the optimum operating conditions for the increase of uranium(VI) extraction satisfied with the decrease of the times required for the uranium(VI) extraction equilibria was necessary for this experiment.

女性 能力 開發을 위한 女性學課程 設置의 提案

玄永學,鄭世華,李男德,李效再 이화여자대학교 한국문화연구원 1976 韓國文化硏究院 論叢 Vol.28 No.-

For the past 20 years, there has been a substantial increase in the percentage of women going to colleges and universities in Korea: the statistics indicate that the male and female ratio changed from 87.3% to 12.2% in 1952 to 73.9% to 26.1% in 1974. Inspite of the increasing trend, some academic observers recently began to voice their opinions against higher education for women on the basis that Korean women, regardless of their education in an occupation or public life. The following trends partially support this opinion. First, the tendency of female students concentrating their major fields on a limited number of specializations, such as teachers' education, language, arts, nursing and medical technology, is a contrasting phenomenon with male students, who are more or less evenly distributed throughout all the areas of specialization as their major fields. Second, the remarkable increase in female labor participation for the past 10-15 years is largely contributed by women in the agricultural sector and manufacturing industries, as the percentage of women with higher education have shown not as much of an increase in the labor market as that of these with elementary level or less education. Furthermore, the percentage of women in professions and managerial occupations which would require college education for qualification toward has decreased from 2% in 1960 to 1.8% in 1970. Thirdly, a survey of Ewha graduates concerning their attitudes toward women's social role and college education presents revealing results of their conservatism and resignation sex equality and occupational roles. These findings certainly contradict the egalitarian principles of modern higher education and human potentials. However, there are now growing trends among female college students, with the awareness of changing sex roles, of taking seriously their future occupations and other social roles in addition to marriage. They are showing a greater concern for developing their potentials for professions and egalitarian roles for society, realizing the need for overcoming socio-cultural limitations as well as personal inertia. These are signs calling for new directions in women's education in Korea by introducing women studies programs which are designed to liberate women from the culturally conditioned state of self-awareness and the traditional status and role.

이중액막에 의한 우라늄(VI)연속추출의 해석

현영진 濟州大學校 産業技術硏究所 1995 산업기술연구소논문집 Vol.6 No.-

The uranium(V1) extraction in the continuous vessel was carried out with the flow rates of continuous and organic phase. The initial concentration of uranium(VI) in the external aqueous phase was 1,000 ppm. The mechanism of batch uranium(VI) extraction through the double liquid membrane mediated by DzEHPA was interpreted by the corrected Advanced Front Model. The continuous uranium(VI) extraction was analyzed by the extraction efficiency due to the above model. The times required for uranium(VI) extraction equilibria decreased with the increase of flow rates in the continuous phase under the constant flow rates in the organic emulsion phase. On the other hand, the times required for uranium(VI) extraction increased with the increase with the increase of flow rates in the organic emulsion phase under the constant flow rates in the continuous phase. Therefore the extent of uranium(VI) extraction decreased with the decrease of the times required for the uranium(VI) extraction equilibria. The main operating variable to increase the uranium(VI) extraction efficiency was proved to be the flow rates of continuous phase. The prediction of the optimum operating conditions for the increase of uranium(VI) extraction satisfied with the decrease of the times required for the uranium(VI) extraction equilibria was necessary for this experiment.

케일 쥬스에 의한 AFLATOXIN B_1의 유전독성 억제 효과

최영현,박건영,이선미,유미애,이원호 부산대학교 유전공학연구소 1995 분자생물학 연구보 Vol.11 No.-

The inhibitory effect of the fresh juice of kale on the genotoxicity induced by aflatoxin B_1 (AFB_1) in Salmonella and Drosophila was investigated. The kale juice had strong inhibitory activity for His^- to His^+ reverse-mutations induced by AFB_1 acting on S. typhimurium TA100. A similar inhibitory effect was detected in somatic cell mutation assaying system of D. melanogaster. Using the wing hairs spot test, we found that the formation of mutant hairs in adult flies as a result of feeding with AFB_1 in their larval stages was efficiently inhibited by coadministration of the fresh juice of kale, which revealed that it can inhibit gene mutation, deletion and mitotic chromosomal recombination. These results seem to suggest that kale juice may exert its inhibitory effect to mutagenic and/or carcinogenic properties of DNA damaging agents.

小腦 Purkinje細胞에 關한 組織學的 및 組織化學的 硏究

盧永福,梁南吉,文正錫,鄭柱炫 순천향의과대학 1979 Journal of Soonchunhyang Medical Science Vol.2 No.1

THe Purkinje cell is certainly one of the most spectacular nerve cells known. For many years all of Purkinje cell have been recongnized by the numerous authors. Yet unanimity on many doubtful points has not been reached, and our studies were carried out in an attempt to obtain the Knowledge of the neuro-anatomical research. We have studies on the Purkinje cellof various animal cerebellum by the his tological and histochemical method, and the results obtained are as follows; 1) The Purkinje cell bodies are arranged in a sheet on cell thick at the interface between the molecular and the granular layers in the vertebrates and birds. 2) The number of Purinje cells are local variations on the folium in each animals. 3) The size of the Purkinje cell in the cats are among the largest cellin the vertebrates. 4) All of the structural characteristics of the Purkinje cells can not found the variations between the vertebrates and birds.

보의 解析法에 關한 比較硏究

曺英鉉 서울産業大學校 1969 논문집 Vol.2 No.1

공직자부패에 관한 연구

유영현 대불대학교 2002 大佛大學校大學院 硏究論文集 Vol.- No.1

부정부패는 사회ㆍ정치ㆍ행정ㆍ경제ㆍ문화적인 면등, 모든 면에서 악영향을 준다. 또한 부정부패의 특수성상 그 행위가 은밀히 이뤄져서 외부세계에 노출되지 않는 경우가 많기에 이를 완벽하게 제거하기가 쉽지 않다. 부정부패를 방지하기 위해서는 부정부패 현상에 대한 체계적이고 지속적인 노력이 국민모두에게 필요하다. 본 연구에서는 부정부패의 개념을 누구라도 객관적으로 인식 할 수 있도록 하기 위한 기준을 제시하였다. 또한 그 동안 논의되어 왔던 공직자부패의 유형과 원인을 분석하여 공직자 부패를 척결할 수 있는 통제대책을 제시하였다. 공직자부패는 결국 공직자와 국민모두가 다양한 측면에서의 부패척결노력이 절실히 필요하다. 또한 공직자부패현상은 복합적이고 총체적인 현상이기 때문에 통합적 전략이나 대책이 필요하다 하겠다. 따라서 부패통제전략으로 부정부패를 전담할 종합적인 법규마련대책이 필요하며 공직사회의 근무여건개선, 시민단체와의 연계체제강화, 국민의식개혁, 규제완화를 통한 부패개입의 차단, 언론의 감시기능강화, 사정관련기구의 조정을 통한 대책이 필요하다. 결국 최고통치권자, 공직자, 국민들이 부정부패를 추방하고 이해관계에 따른 부정한 관계를 형성하지 않으려는 노력이 더욱 중요하게 보인다.

중학교 학생의 학교학습과 학원학습 문화에 관한 연구

변영계,김현주 釜山大學校 敎育硏究所 2001 敎育硏究 Vol.11 No.1

The purpose of this study is to describe and analyze the culture of students' learning in middle school. It has been regarded as one of the most distinctive educational phenomena in Korean students' culture composing school culture. Based on the ethnographic data collected, the study administered answer the following questions : 1. What activities do students do for learning in living and lessons of middle school, and what attitude and recognition do they have about learning? 2. What activities do students do for learning in living and lessons of 'HAKWON (cram school)', and what attitude and recognition do they have about learning? The major research method of this study is ethnographic interview. In addition, the researcher used the description survey, the document research, and a record of learning diary. The results of this study are as follows. First, students have the most important meaning on preparation for an examination in school learning. They devide 'the subjects with sample questions' from 'the subjects without sample questions' when they prepare for an examination. Besides, According to terms of examination, students concentrate on learning differently. Second, students want 'teaching by explanation'. It is the teaching pattern that teachers mainly explain the contents of textbooks. They want to understand perfectly and systematically the contents of textbooks. They dislike "only making progress". Third, the major purpose of 'cram school' is to make students advance academic achivement of students and it is related to strategy for existence of 1 cram school'. These results show that school on the public education cannot entirely accomplish educational function. A given condition of education and assessment system will have to be improved in order that school can stand on the center of education.

高等學生의 健康增進行爲 程度와 關聯要因

김영애,김상순,정문숙,한창현 韓國保健敎育.健康增進學會 2000 보건교육건강증진학회지 Vol.17 No.1

The purpose of the study is to identify the correlation between the degree of conducts on health promoting behaviors and the related factors. 1112 academic high school students were taken for this study by self-administered questionnaire surveys from Nov. 10. 1998 to Dec. 15, 1998 in the city of Taegu. As to female students, the better grades and mother's educational backgrounds they possessed, the higher scores in health promoting behavior were(p〈0.01), the better grades, the higher in self-efficacy(p〈0.01), the better grades and mother's educational backgrounds, the higher self-respect(p〈0.05), and when the family number were 3 to 5 the highest score was. In case of male students, from the above results, economic status, self efficacy, self-respect, and perceived health status are presented as the crucial factors on health promoting behavior meaning the better economic status, self-efficacy, self-respect, and perceived health status, the higher degree of conducting health promoting behavior. It picked mother's educational background, self-efficacy, self-respect, and perceived health status as the essential on female students, it indicating the better mothers' educational background, self efficacy, self respect, and perceived health status, the higher degree of conducting health promoting behavior. On the results of this study, I would like to suggest that we will have to conduct not only health education for health promoting behavior but also promoting programs for self-efficacy and self-respect at the same time in order to enhance the degree of conducting health promoting behavior for high school Students.