동일한 시료에 대한 국내 기관간의 STR 분석결과 비교 : STR 유전자좌 분석법의 표준화 설정을 위하여

박종태,신경진,양윤석,우광만,이숭덕,이승환,이정빈,정연보,조승희,한길로,한면수,홍승범 大韓法醫學會 2001 대한법의학회지 Vol.25 No.1

This paper described a collaborative exercise intended to see what kinds of short tandem repeat (STR) loci are used in different DNA typing laboratories in Korea and to compare their results for the demonstration whether uniformity of DNA profiling results from different laboratory could be achieved in Korea Laboratories were asked to test five tissue DNAs using methods routinely used in each laboratory and to report the results to the coordinating laboratory. The exercise demonstrated that each laboratory was using different STR loci for the typing with different STR numbers,2 VNTRS,36 STRs and amelogenin in total, and the direct comparison of the results from all the laboratory for the 18 loci could not be done as only one laboratory submitted typing results. Among 21 loci for which several laboratories submitted typing results, results for 14 loci were the same and results for the other 7 loci were different depending on the participating laboratory. D1S80, F13A01, D16S539, D21S11, D18S51, D3S1744 were the loci with different typing results. Even in the cases where commercial kits were used, the results were not the same depending on the machines used, that is the capillary electrophoresis or the gel based electrophoresis. The reason for the different results, points about the standardization of the methods arid the profiling data were described.

STR 유전자의 개인식별력 측정을 위한 통계량

이혜승,이재원,한길로,황적준 大韓法醫學會 1998 대한법의학회지 Vol.22 No.2

When we intend to do the personal identification using DNA profiles, it will obviously be better to use as much information as possible. The power of identification is increased by using the genetic marker system such as VNTRs or STRs. Although STRs do not have many alleles per locus as VNTRs, these can be compensated by a large number of loci that are potentially usable. However, it will be more efficient to use a morphic loci. Therefore, prior to choose the genetic marker system of STRs for identification, it is essential to consider the statistical parameters of each STR locus, such as obs-H(observed heterozygosity), exp-H(expected heterozygosity), pM(probability of match), DI(discrimination index), PD(power of discrimination), MEC(mean exclusion chance), MEP(mean exclusion paternity), PIC(polymorphic information content) et al. In this article, we described the exact meaning of statistical parameters for the purpose of identification.

經濟敎育과 勞使問題의 重要性 : 초등ㆍ중ㆍ고등학교 교과서를 중심으로 Focused on textbooks of elementary, middle, and high schools

이승길 한국경제교육학회 2002 경제교육연구 Vol.- No.8

1. 본고에서는 먼저 노동교육과 관련해 노동문제의 중요성에 대하여 살펴본다(Ⅱ). 그리고 나서 현행 초등학교, 중학교, 고등학교에서 각각 사용하고 있는 여러 가지 교과서를 기초자료로 삼아서 그 내용의 경제부문 중 "노사문제 또는 노동문제의 중요성"에 국한해 그 내용을 살펴본다(Ⅲ). 그리고 마지막으로 논의한 것을 정리해 결론을 맺고자 한다(Ⅳ). 2. 전체의 초등·중등·고등학교 교과서를 살펴본 후에 느낀 점은 대체로 교과서에서는 경제부분에서 '노사문제 및 노동문제'를 그렇게 중요성을 띄고서 심도있게 다루지 않고 있으며, 내용들도 거의가 원론적인 수준에서 역사적 배경이나 사실관계를 주로 다루고 있다. 그래서 현저하게 근로자측이나 사용자측에게 편향된 시각을 가지게 할만한 내용은 없었고, 다만 부분적인 내용의 오류나, 통계상의 부적절성 삽화의 부적절성 등이 있을 뿐이었다. 그리고 현행 교과서의 대부분이 노동자와 자본가 등의 1980년대와 같은 대립적인 용어로 이분법적으로 서술하고 있는데, 이는 노동문제에 관해서는 노동법에서 법률용어로 사용하고 있는 용어로 통일하는 작업이 필요하다고 보여진다. 3. 이제는 우리 나라의 바람직한 민주적 노사관계의 틀을 구상해고 보고 이에 비추어 오늘과 내일의 노사관계개선을 생각해야 한다면, 새로운 노사관계의 실현에는 무엇보다도 '노·사·정의 의식개혁'과 '상호신뢰' 및 '협력관계 구축' 등 주체적 역할이 중요하다. 그리고 노·사·정은 정보화시대에 지식노동력을 키워야 차원 높은 경쟁으로 정보지식 집약적 산업화에 성공할 수 있다는 견지에서 새로운 노사관계 형성에 임하여야 한다는 방향에서 비전을 제시하고 교육을 계도해야 할 필요가 있다. 1. Current paper first looks into the importance of labor issues in relation to labor educations(Ⅱ). The paper examine how much importance is given to labor issues on the basis of various textbooks that are currently being used in elementary, middle, and high schools(Ⅲ). Summary of the discussion will serve as a conclusion(Ⅳ). 2. Examination of textbooks of elementary, middle, and high schools showed that the parts on economy in the textbooks do not cover labor relation issues in depth attach much importance to them. Even the contents mainly deal with historical backgrounds or simple facts. There were no contents that could lead students to have excessively favorable opinions about workers or employers. There were only mistakes in some parts or irrelevancy in statistics and pictures. Most of textbooks described labor relations in dichotomous manner by using confrontational terms such as laborer and capitalist which were prevalent in 1980s. It seems necessary for the textbooks to use legal terms used in labor law in a consistent manner when they describe labor issues. 3. Now we should envisage desirable framework of democratic labor relations and think about measures to improve labor relations of the present and the future. To realize new labor relations, "changes in consciousness of labor, management and the government," "mutual trust," and "establishment of cooperative relations" are important above all. Labor, management, and the government need to present a vision for education on labor issues, and suggest desirable directions for such education bearing in mind that nurturing knowledge workers in this age of information is indispensable for successful knowledge-intensive industrialization and that establishment of new labor relations is important.

바나듐 산화막을 활용한 습도센서의 제조에 관한 연구

이승철,최복길,김남철 公州大學校 工學硏究院 生産技術硏究所 2004 論文集 Vol.12 No.-

Vanadium oxides have been widely used in a variety of technological applications such electrochromic devices as infrared detectors and are expected as a material suitable for gas sensing applications. Thin films of Vanadium oxide (VOx) have been deposited by r.f magnetron sputtering under different oxygen partial pressure ratios(0%, 10%) and substrate temperatures(27℃, 400℃). Humidity-sensitive properties of resistive sensors having interdigitated electrode structure are characterized. Our sensors show good response to humidity over 20%RH to 80%RH Vanadium oxide films deposited with 0%O2 partial pressure at 400℃ exhibit greater sensitivity to humidity change than others.

스퍼터된 바나듐 산화막의 구조적, 전기적 특성에 미치는 진공 어닐링의 효과

이승철,황인수,최복길 公州大學校 工學硏究院 生産技術硏究所 2003 論文集 Vol.11 No.-

Thin films of vanadium oxide(VO_(x)) have been deposited by RF magnetron sputtering from V₂O_(5) target in gas mixture of argon and oxygen. The oxygen/(oxygen+argon) partial pressure ratio of 0% and 8% is adopted. Crystal structure and optical properties of films sputter-deposited under different oxygen gas pressures and in situ annealed in vacuum at 400℃ for 1h and 4h are characterized through XRD, XPS, RBS, FTIR, and optical absorption measurements. The films as-deposited are amorphous, but 0%O₂ films annealed for time longer than 4h and 8%O₂ films annealed for time longer than 1h are polycrystalline. I-v characteristics were distinguished between linear and nonlinear region. In the low field region the conduction is due to Schottky emission, while at high fields it changes to Fowler-Nordheim tunneling type conduction. The conductivity measurements have shown an Arrhenius dependence of the conductivity on the temperature.

생체분해성 고분자의 특성 및 의학적 응용

이진호,최선웅,강길선,노승무,민병무,김용백,김학용 충남대학교 의과대학 지역사회의학연구소 1998 충남의대잡지 Vol.25 No.1

"Biomaterials" are nonviable materials used in medical devices, intended to interact with biological systems. They should have "biocompativility", which is defined as the ability of materials to perform with an appropriate host response in a specific application. It includes many materials that are often classified as biomaterials. Metals, ceramics, polymers, glasses, carbons, and composite materials are some examples. Among them, biodegradable polymers are discussed in this revies article. Since a biodegradable polymeric implant does not have to be removed surgically once it is no longer needed, biodegradable polymers are of value in short-term applications that require only the temporary presence of a polymeric implant. Main short-term medical applications of biodegradable polymers include the temporary tissue scaffold, the temporary adhesion barrier, the drug delivery device, and the multifunctional implant. In this article, the properties, processing methods, and medical applications of the biodegradable polymers are reviewed.

Digital Subtraction Angiography (DSA)시 Grid 사용유무에 따른 화상변화에 관한 연구

이성길,김승국,김영근 광주보건대학 1990 論文集 Vol.15 No.-

It has been investigated the variation of the image for using and no using the Grid at the D.S.A(Digital Subtraction Angiography) system. The result of experiment indicated that in the case of no using the Grid, (1) the irradiation dose of patient was reduced and the life of X-ray tube prolonged. (2) the variation of the contrast was not influence of using the Grid.

접촉각 측정을 통한 Alkanethiol로 표면 처리한 은 분말의 표면 특성 연구

이길재,신승일,오성근 한국공업화학회 2004 공업화학 Vol.15 No.1

은 분말을 alkanethiol로 표면 처리한 후, alkanethiol의 탄소 개수 변화에 따른 은 입자의 표면 특성변화를 접촉각 측정을 통해 연구하였다. 이때 은 입자 표면에 alkanethiol의 흡착여부를 DRIFT (diffuse reflectance infrared fourier transform) spectrum를 통해 확인하였다. 접촉각은 Washburn 식을 바탕으로 한 liquid penetration 방법으로 측정하였고, 이 측정법의 보완을 위해 분말에 압력을 가하여 원판형태로 만들어 그 표면에서 접촉각을 측정하는 sessile drop 방법을 함께 사용하였다. 그 결과 순수한 은 입자의 물에 대한 접촉각은 두 가지 방법에 대해 각각 58°, 40° 나왔고, 다양한 탄소개수(C_(4)-C_(12))의 alkanethiol로 표면 처리한 입자는 모두 90° 이상의 결과를 얻었다. 즉 alkanethiol로 처리한 은 입자의 표면이 소수성으로 변했음을 의미한다. 여기서 처리한 alkanethiol의 탄소개수가 증가할수록 접촉각은 계속 증가했으나, 접촉각의 증가 폭은 상대적으로 점차 감소하였다. Contact angles of silver powders were measured for investigation of surface properties of silver particles as changing alkyl chain length of alkanethiol. Silver powders were modified by various alkanethiol (C4∼C12). Adsorption of alkanethiol on silver particles was confirmed by DRIFT (diffuse reflectance infrared fourier transform) spectrum. Contact angles were measured by liquid penetration method based on Washbum equation and sessile drop method on tablet of compressed powder. In result. the value of contact angles on water were 53°, 40°about two method. Contact angles of surface treated particles by alkanethiol of varied alkyl chain length were larger than 90°. Because of bonding between silver and sulfur in alkanethiol, silver surface was surrounded by alkyl groups of alkanethiol. Surface properties of silver particles were increased on hydrophobicity with alkyl chain length of alkanethiol. In comparison with increase of contact angle accordingto increase of alkyl chain length of alkanethiol. the widths of increasing contact angle were relatively decreased.

忠淸南道 德山道立公園의 호랑나비 上科 毘蟲相

이승길 한서대학교 산학협력연구원 부설 환경연구소 1999 환경연구소 논문집 Vol.2 No.-

충청남도 예산군 덕산면과 서산시에 걸쳐있는 가야산이 위치한 덕산도립공원에서 1994년부터 1998년까지 5년 간 4-6월에 한서대학교 생물학교 학생들이 채집한 호랑나비상과의 표본 1,001개체를 조사하였다. 그 결과와 환경평가에 대한 결론은 다음과 같다. 덕산도립공원산으로 보고되는 호랑나비상과는 총 4과 50종이다. 춘계의 제1우점종은 노랑나비(16.9%), 제2우점종은 배추흰나비(7.3%)였으며, 호랑나비과 제1우점종은 모시나비(32.6%), 제 2우점종은 사향제비나비(17.4%)였다. 흰나비과의 제1우점종은 노랑나비(47%)이며 제2우점종은 배추흰나비 (20.3%)였다. 부천나비과의 제1우점종은 작은 주홍부전나비(51.4%)이며 제2우점종 부전나비(21.6%)였다. 또한 네발나비과에서 뱀눈그늘나비가 제1우점종(17.2%)이며 네발나비(13%), 별박이세줄나비(11.8%)순으로 나타났다. 환경관련종으로 희귀종은 관찰되지 않았으나 감소종 2종과 종의 다양성을 볼 때 덕산도립공원의 환경은 아직 양호한 상태로 유지되어 왔으며 증가종 3종의 출현은 이 지역의 환경도 변화가 시작되었음을 시사하는 결과이다. The Papilioidian fauna of Lepidopten, Insecta from Duksan Provincial Park of Korea was examined. The collection was carried out from April to June of 1994-1998 in Department of Biology, Hans대 University. The results was follows. Total 1,001 specimens are belonging to 50 species, 4 families. Dominant species of the prevernal and vernal population are Colias erate and Artogeia rapae of the Papilionoidea, Parnassius stubbendorfii and Atrophaneura alcinous of the Papilionidae, Colias erate and Artogeio rapae of the Pieridae, Lycaena phlaeas and Lycaeides argyronomon of the Lycaenidae, Lasiommata deidamia and ploygonea c-aureum of the Nymphalidae. The natural environment of this area seems to be conserved well, in respect that the existence of two endangered species from Korea and diversity of species from Duksan Provincial Park. But the dangerous indication is seen also from the species in increasing tendency as Colias erate, Lasiommata deidamia, Coenonympha amaryllis.

肥肉豚의 血液化學値에 關한 硏究

李政吉,康炳奎,魏聖河,朴承柱,朴來生 全南大學校 農漁村開發硏究所 1981 農業科學技術硏究 Vol.16 No.1

全羅南道 順天地方을 中心으로 한 養豚場에서 出荷된 肥肉豚을 對象으로 血液化學値를 調査했다. 돼지의 年齡은 7個月부터 13個月이었으며, 總 276頭(♀ 181,♂ 95)를 對象으로 屠畜場에서 採血했는데 Landrace와 Berkshire의 一代難種이 大部分이었다. 한편 本 實驗에서 使用한 무??豚은 모두가 去勢한 것이었다. 1. 測定한 血液化學値는 血淸?萄糖量, 血淸總蛋白量, ablumin量, globulin量, 血淸尿素?素量, 血淸 cholesterol量, calcium量, 無機燐量, 血淸 transaminase(SGOT와 SGPT)等이었다. 2. 本 調査에서 나타난 각종 血液化學値의 範圍 및 平均値는 이미 報告된 結果와 거의 一致하였다. 3. 血淸cholesterol量은 性別差가 없었고 겨울에 높은値를 보인 反面, 여름과 가을에는 낮은 치를 보였다. 4. 血淸總蛋白量의 季節的變動은 globulin量의 變動에 起因한 것이었고, globulin量은 全般的으로 높게 나타났는데 特히 여름철의 增加가 뚜렷했다. Samples of blood were taken from 276 fattening pigs(181 intact females and 95 castrated males) at slaughter and serum chemical values were determined. The pigs were from Suncheone area, Chonnam Province; their age ranged 7 to 13 months; most of them were crossbreds of Landrace and Berkshire. 1. Determined blood chemical values in the prestent study were glucose, total protein, albumin, globulin, serum urea nitrogen, cholesterol, calcuim, phosphorus, serum glutamin oxalacetic transaminase and serum glutamic pyruvic transaminase. 2. The ranges and means of the chemical values in the present study were reconcilable with the normal values previously reported. 3. Sex differences between castrated males and intact prepubertal females were not observed in serum cholesteol levels. There were significant differences between the means of seasons, with the higher cholesterol values being observed during the winter as compared with summer and fall. 4. Seasonal changes of total protein cantent were due to the seasonal changes of globulin values. The globulin values in the present study were higher than those reported previously by others; the values were highest during summer season.