한국산 호도의 단백질 및 지질의 조성에 관한 연구

최청,성태수,차원섭,손규목 한국농화학회 1986 Applied Biological Chemistry (Appl Biol Chem) Vol.29 No.3

We employed gel filtration, polyacrylamide gel electrophoresis, amino acid autoanalyzer, thin layer chromatography for determining protein and lipid composition in walnut. The walnut contained 22.18% of crude protein and 64.23% of crude lipid. Glutamic acid (38.60%) was the major amino acid in soluble protein, followed by arginine and aspartic acid. The sodium dodecyl sulfate polyacrylamide gel electrophoresis analysis showed 12 band in soluble protein of walnut, and collection rate of main protein fraction purified by Sephadex G-150 was 60.67%. The molecular weight for t he main protein was estimated to be 43,000. The lipid fraction obtained by silicic acid column chromatography were mainly composed of about 93.05% neutral lipid, whereas compound lipid was only 7.0% level. Among the neutral lipid by thin layer chromatography, triglyceride was 82.05%, sterol ester and free fatty acid were 3.86% and 4.80%, respectively. The predominant fatty acids of total and neutral lipids were linoleic acid (64.48∼69.98%) and oleic acid (13.89∼15.36%). The major fatty acids of triglyceride separated from neutral lipid were linolenic acid (69.98%).

사학재정의 정책방향

최청일,고영진 東亞大學校 學生生活硏究所 1995 學生硏究 Vol.17 No.-

2003학년도 재학생 실태조사

최청일,박자연,김주현 東亞大學校 學生生活硏究所 2004 學生硏究 Vol.32 No.-

敎師의 給與政策 比較硏究

최청일 東亞大學校 學生生活硏究所 1998 學生硏究 Vol.17 No.-

The purpose of this study was to review teachers' salary policy in the United States. The present study gave attention to personnel policies that bore on school financing and provided specific detail and discussion of teachers' salaries. Of concern was the relative financial condition of teachers in the national economy. Teacher policies that addressed both the needs of the children and the welfare of the teachers were necessary for a productive educational system. Such personnel policies were affected by the supply of a quality teaching force as well as by the economic and demographic conditions of the school district. Collective barganining played an important role in the welfare of teachers in over half of the states : but, the evidence was inconclusive as to whether over the long term, teachers' salaries were higher in the states and school districts where collective bargaining was practiced. Teachers had historically been subjected to low levels of compensation. Adam Smith attributed the low wages of teachers to the plentiful supply. The fact that public school teaching was not subject to conventional market forces with regard to both supply and demand prevented teachers' salaries from being competitive with other white-collar employments. Rather than having the characteristics of an open marketplace the public school teaching profession exited as an oligopoly wherein the state legislature could if it chose control supply and demand. The measurement of both the supply and demand of teachers was extremely complex. The supply was generally dependent on the number of teachers continuing in the profession and the number of new entrants. Both variables were dependent on facors such as age of teachers, retention power of the profession, opportunities for other employment, and the like. Further complication was added by the length and number of career breaks and the gender of teachers. Investment in public schools and the economic conditions of teachers was influenced by the general condition of the economy. In periods of revenue shortfalls, teaches tended to personally absorb or cushion the effects of the economy. An objective measurement of how much teachers should be paid to provide a quality education was not likely to be found. If teachers' salaries exceed the rise of inflation it Is thought to be good. If teacher’s salaries in the United States were relatively better than in other countries, there might be reason to assume some relative elevation of teaching status in the economic system. Today, teachers' salaries fall short of most other white-collar prolessions in the United States, but appear to provide greater purchasing power for U.S. teachers than teachers' salaries in other advanced nations.

고상법에 의한 Angiotensin Ⅱ 유사물의 합성(제2보)

崔淸 嶺南大學校附設 基礎科學硏究所 1982 基礎科學硏究 Vol.2 No.-

Synthesis of (5-Gly), (6-Gly) and (8-Gly) analogues of angiotensin Ⅱ by solid phase method using an improved reaction vessel was carried out. I employed gel chromatography, paper chromatograpy, thin layer chromatography, paper electrophoresis, salb-gel electrophoresis and amino acid analysis for purification and for determining the purity of synthesized peptides. (5-Gly), (6-Gly), (7-Gly) and (8-Gly) analogues of angiotensin Ⅱ were incubated in vitro with endopeptidase (α-chymotrypsin, trypsin) and exopeptidase (carboxypeptidase A, leucineamineaminopeptidase) in order to study the degradation patterns of the peptides. (5-Gly), (6-Gly), (7-Gly) and (8-Gly) analogues of angiotensin Ⅱ were rapidly degradated by α-chymotrypsin, trypsin, and carboxypeptidase A while the degradation by leucineaminopeptidase is slow. (7-Gly) angiotensin Ⅱ contain imino position and therefore it was not attacked by leucineaminopeptidase.

敎育投資의 意思決定 基準分析

崔淸一,天九泰 東亞大學校 學生生活硏究所 1992 學生硏究 Vol.20 No.-

From the perspective of economics, educational decision can be thought of as producing human capital;that is, as embodying knowledge in students that has subsequent market value through increased labor market skills, broadly conceived, upon entry into the work force. The purpose of ths paper is to discuss rational decision criteria for human capital investment. The educational decision criteria can be divided into micro approaches and macro approaches. The micro approaches consist of rates of return, internal rate of return, net present value, benefit-cost ratio, cost-effectiveness. The macro approaches involve residual growth, manpower planning, social demand approach. Rate of return is that percentage rate of return that discounts the stream of earnings expected by the student over his life cycle back to its present value and equate them to the total educational costs compounded forward to the date of graduation. The internal rate of return is that discount rate which equates the present values of benefits and costs or the same things as sayings it is that discount rate at which the difference between the discounted value of benefits and the discounted value of costs is equal to zero. The net present value is the difference between the present values of benifits and of costs. We had better select all projets where the present value of benefits exceeds the present value of costs. The benefit-cost ratio means that the ratio of the present value of benefits to the present value of costs exceeds unity. A project will be worthwhile whenever B_0/C_0>1. Cost-effetiveness analysis is a technique for measuring the relationship between the total inputs, or costs, of a project or activity, and its outputs or objectives. This method may be employed to make choice of a project from among the alternatives, where programe effects are not valued in money terms and where imputing values will be difficult. The sources of economic growth are not only physical capital and labor but also education, health, on-the-job training. The contribution of these latter groups of factors to econonic growth is that part of the growth which can't be explained by increases in physical capital and labor inputs. The unexplained part of growth is generally termed residual growth. Manpower planning attempts to relate manpower needs of the economy to manpower supply through education and training when planning economic development. Social demand approach refers to the demand for education emerging from the needs and aspirations of individual persons as contrasted the educational demand based on the personnel requirements of society. The above criteria should be put educational decision in human capital investment into use.

固相法에 의한 Angiotensin II 유기물의 合成 (III)

崔淸 嶺南大學校附設 基礎科學硏究所 1986 基礎科學硏究 Vol.6 No.-

Synthesis of (Ala¹, Ala²), (Ala¹, Ala³) and (Ala¹, Ala⁴) analogues of angiotensin Ⅱ by solid phase method using an improved reaction vessel was carried out. The yield average 62.8∼66.5%. Homogeneity and purity of the in three solvent systems syntheized peptides were established with paper chromatography, paper electrophoresis, amino acid analysis and melting point apparatus. The pressure activity was gradually increased with the increase in the chain length from the N-terminal and of (Ala¹, Ala²) angiotensin Ⅱ, however the maximum value was within 30%. (Ala¹, Ala²), (Ala¹, Ala³)and (Ala¹, Ala⁴) analogues of angiotensin Ⅱ were incubated in vitro with α-chymotrypsin and leucineaminopeptidase in order to study of degradation patterns on the peptides. (Ala¹, Ala²), and (Ala¹, Ala³) analogues of angiotensin Ⅱ were rapidly degradated α-chymotrypsin and leucineaminopeptidase. (Ala¹, Ala⁴)angiotensin Ⅱcontain imine group position and therefore it was not attacked by leucineaminopeptidase.

地方文化와 地方大學의 役割과 機能

최청일,설기문,박영태,이광원 東亞大學校 學生生活硏究所 1992 學生硏究 Vol.20 No.-

A local culture ought to be established by local citizens and existed for the sake of local citizens, at the same time a local culture should be cultures developing, prospering the locality. That is why a local culture must be separate from centralizm. On this account it is necessary that local inhabitants should create their own cultures in their own way. Up to now, however, a central government has controlled local cultures, so we find it very difficult for the inhabitants to form creative cultures for their own locality. Therefore universities, colleges, and community colleges where are located in the locality are now asked to play initiative roles to produce local cultures. There are factors to make allowances for advancing local cultures; that is, the qualities, a cultural space, a cultural organization, cultural events, maintenance and transmission. The functions of higher educaion are instruction, research, service, these general functions of higher education and the above factors are indispensable to the development and creation of local cultures. In this paper we mean to investigate the functions and roles of higher education in Pusan area for the prosperity of local cultures. The followings specify the functions and roles of higher education for the advancement of local cultures. 1. Higher education has the responsibility of creating and maintaining of the qualities of local cultures corresponding to the area. Pusan is surrounded with rivers, seas, mountains and has plentiful of traditional inheritances. In spite of these environments Pusan is regarded as a marine city, Pusan has not only activities to maintain qualities as a marine city but also contains activities to keep pace with cultural qualities as a riverside city, a mountainous city including historical inheritances. 2. Higher education tries to play an important role to search for programs to utilize the existing cultural space and to devise new cultural space. In case local qualities in Pusan are divided into riverside, mountainous, marine, and traditional, Dong-A University and Busan Junior College are situated at Nak-dong River, so they had better devise cultural acticities in connection with riverside cultures. Busan National University, Dong- Ui University, Busan Women's University, Busan Teachers'College are surrounded with mountanous areas, therefore they had better plan cultural programs to devise activities connected with mountainous cultures. Korean Marine University, Gyongsong University, Susan University, Goshin University are surrounded with seas, so they had better devise programs to make use of activities related to marine cultures. 3. Higher education should provide local citizens with the facilities for cultural space. 4. Higher education should educate persons who keep and create local cultures. 5. Higher education should have close ties with cultural organizations in the locality to activitize and study the programs, and supply them with the materials. 6. Higher education should make their resource personnel take part in the activities of the cultural organizations and contribute to the development of the cultural organizations. 7. Higher education should get their own members to participate in the cultural events and to help to activitize the events. 8. Higher education should develop cultural event corresponding to local qualities and devide them into weak points and strong points to activitize the program. 9. Higher education should participate in the cultural events and manage the events. 10. Higher education should have research activities to keep the existing local cultures and to develop new cultural patterns. 11. Higher education should have their own members educate the inhabitants to transmit local cultures and try to practise examplary cultural patterns.

부동산공시제도의 개선방안에 관한 연구

최청인 한국지적학회 2002 한국지적학회지 Vol.18 No.2

우리나라의 부동산공시제도는 지적과 등기로 이원화되어 있고, 부동산제도는 토지와 건물로 분리되어 있다. 이들 공부의 등록 내용과 운영 실태를 분석한 결과 행정력 낭비와 민원 처리의 번잡을 초래하고 있다. 이의 개선은 지적과 등기를 단계별로 정보연합, 공부통합, 조직통합 방식으로 추진하는 방안을 마련하고, 토지, 건물의 등록관리 일원화와 건축물 부지의 토지합병정리를 선결과제로 제시하였다.

동결보호제로서 미성숙 송화추출물이 Lactococcus lactis에 미치는 영향

김성,배만종,최청 경산대학교 생명자원개발연구소 2000 생명자원과 산업 Vol.4 No.-

송화추출물 첨가가 Lactococcus lactis 성장에 미치는 영향을 알아보기 위하여 Elliker broth에 1, 3, 5% 첨가한 결과, 3% 첨가에 의해 균성장이 뚜렷이 촉진됨을 알 수 있었다. 동결건조컬쳐 제조시 중화제로 사용되는 Na citrate의 적절한 첨가 농도를 알아보기 위하여 도결건조컬쳐에 Ls. lactis를 1% 접종한 후 Na citrate를 각각 1.5%와 2% 첨가하ㅕ 배양하면서 생균수를 측정한 결과 2% 첨가에 의해 생균수가 가장 높게 나타났다. 또한 동결건조 컬쳐의 세포 활력을 산 생성능으로 측정한 결과, 3% 송화추출물 첨가구의 활력은 76%, β-glycerophosphate 첨가구는 73%, sucrose와 gelatin 첨가구는 각각 69, 68%를 나타내어 송화추출물 첨가구의 활력이 가장 높게 나타나 송화추출물이 동결건조컬쳐 제조시 세포의 효소를 잘 보호하여 산 생산에 우수성을 보이는 것을 알 수 있었다. 동결건조컬쳐 제조후 적당한 저장조건과 온도를 알아보기 위하여 산소와 질소 가스 하에서 -15℃와 25℃로 각각 저장한 후 생균수와 산도를 측정한 결과, 동결보호제 송화추출물을 첨가하여 질소 가스주입하에서 -15? 저장하는 것이 생균수의 가장 높게 나타났고 세포 활력 유지에 가장 적당한 것으로 나타났다. This studies was carried out to abserve the growth and the activity Lactococcus lactis with immature pine pollen extract(IPPE) in Elliker broth, skim milk and the effection of IPPE as cryogenic compound in Lyophilized culture. Growth and activity of Lactococcus lactis Elliker broth with IPPE were better than control at 28? for 20 hrs. Survival rate and activity of Lactococcus lactis freeze dried culture added IPPE as cryogenic compound were higher than control, when the lyophilized culture were tested for survival rate and acid producing activity after storage for three month by rehydration with skim milk to original prelyophilization volum. Survival rate and activity of Lactococcus lactis freeze dried culture sealed with N ₂ gas were higher than O₂ gas, when the lyophilized culture were tested for survival rate and acid producing activity after storage for three month by rehydration with skim milk to original prelyophilization volum. Survival rate and activity of Lactococcus lactis freeze dried culture stored under -15℃ were higher than 25℃, when the lyophilized culture were tested for survival rate and acid producing activity after storage for three month by rehydration with skim milk to original prelyophilization volum.