하악골 골절후의 골치유과정에 있어서 방사선학적 추적조사

최진영,김명호,허경희,서병무,이종호,정필훈,김명진 대한악안면성형재건외과학회 2000 Maxillofacial Plastic Reconstructive Surgery Vol.22 No.5

The results of radiographic study of healing of fractured mandible are often inconsistent with clinical evaluation of bone healing pattern of it. In addition, there is inconsistency between radiographic studies. We think if such inconsistency is resolved, clinical assessment combined with radiologic evidence can be used to guide to more accurate clinical management. The purpose of this study is to evaluate radiological healing pattern of mandible, and to apply its result to clinical use. Panoramic view was used to analyze the change of radiographic finding in 35 patients (27 male, 8 female, ranging 17 to 53 years old) treated for mandibular fracture at the department of oral & maxillofacial surgery, SNUH in the period 1991 to 1998, Patients are all treated by rigid internal fixation using monocortical miniplate. Within 9 weeks, no change is observed at fracture site. Osteogenic change is observed at various time interval (3 to 21 weeks). We have found radiographic change of healing is observed 4 to 6 weeks later to clinical healing, According to this result, we recommend radiographic follow-up at 4 week, 10 week, 10 month.

만성 세뇨관 간질성 신염을 보인 메칠말로닌산혈증 1예

이진석,구영희,하태선 대한신장학회 2003 대한신장학회잡지 Vol.22 No.6

패널내 추계적 요인들의 공분산 관계에 의한 최우추정

이회경,이진우 한국경영과학회 1994 經營 科學 Vol.11 No.2

This paper analyses the stochastic nature of the Permanent Income Hypothesis (PIH) by specifying the variance-covariance structure of PIH based on Hall and Mishkin[3]. Maximum likelihood is employed to estimate the model by explicitely incorporating the heteroscedastic nature of the data into the likelihood. The data used are individual Korean household consumption and income data. The results indicate that the data are generally consistent with the Permanent Income Hypothesis, and about 11 percent of the total variation in consumption may be attributable to the excess sensitivity of consumption to income.

미세절제술과 비교 유전자 보합법에 의한 각종 종양에서의 유전자 변화에 관한 연구

구선회,신소영,임춘화,전영미,이윤이,김진만 충남대학교 의과대학 지역사회의학연구소 2000 충남의대잡지 Vol.27 No.2

For the evaluation of oncogenesis, progression and prognosis of cancer, CGH is an important technique, because this technique is economic due to utilization of only one probe and lack of culture, screening mathod of whole genome and possibility of retrospective and prospective study. By the CGH, genornic variation of 20 breast cancer tissues, 23 stomach cancer tissues and 16 bladder cancer tissues were analyzed. The results were as followes ; 1. breast cancers The CGH results showed gains on chromosomes 8q(40%), lq(30%), 17q(15%), 20q(15%), 18q (15%), 5p(15%), and 13q(15%). The Deletions were on chromosomes 17p(45%) and 22q(20%). High-level amplifications(green/red ratio >1.5) were noted on chromosomes 1p31, iq, 3q25-qter, 5p, 7q31-qter, 8q, 9q22-qter, 10p, l1p, 11q22-qter, 12p, 12q24, 14g21-qter, 15q23-qter, 17q, 18p, 18q12-qter, 20p, and 20q. By comparison with infiltrating ductal carcinoma, the two medullary carcinomas showed high-level amplification on chromosomes iq3l, lq, 8q, 10p, 11p and 12p. 2. stomach cancers 1) Usual amplification sites of genome were lq, 13q, 17q, 20p,q. 2) 17p was the most common deletion site. The other sites of the deletion were lq, 4q. 3) In intestinal type of stomach cancer, genomic variation is more common than diffuse type. 4) In the cases of no evidence of lymph node metastasis, deletion of 17p is absent but amplification of 8q is obvious in the case of lymph node metastasis. 3. bladder cancers Common amplification of copy numbers of DNA sequences by CGH were seen at 1q, 3q, 4q, 5p, 6pq, 7p, 8q, 11q, 12q, 13q, 17q, 18q and 20pq(more than 20% of cases). High level amplification was noted at 1p32, 3p2l, 3q24, 4q26, 8q21-ter, 11q14-22, 12q15-21, 12q21-24, 13q 21-31, 17q22, and 18q22. Deletions were noted at 2q21-qter, 4q13-23, 5q, 8p12-22, 9pq, 11p13-15 (more than 20% of cases).

국제회계기준 도입의 영향과 대응방안

김진희,이성원 大田大學校 社會科學硏究所 2010 社會科學論文集 Vol.28 No.2

국제회계기준(IFRS)이란 회계처리에 대한 국제적 통일성을 높이기 위해 국제회계기준위원회 OASB)가 공표하는 범세계적인 회계기준으로 현재 전 세계 110여 개 국에서 시행 혹은 전면적인 도입을 진행 중이며, 우리나라는 국제회계기준을 전면 수용하여 2011년부터 모든 상장기업을 대상으로 일괄도입할 예정이다. 국제회계기준은 원칙중심의 회계기준으로 경제적 실질에 따른 회계처리와 연결재무제표 중심의 재무제표 작성이 이루어지며 모든 자산과 부채에 대한 공정가치평가를 원칙으로 하고 있으므로 국제회계기준의 도입은 기업 재무구조 및 기업가치의 변화를 가져오게 될 것이다. 따라서 국제회계기준의 성공적 도입을 위해서는 기업의 자체적인 대응전략과 함께 정책당국의 제도적인 정비가 요구된다. 국제회계기준의 도입은 우리나라 회계투명성을 제고시킬 수 있는 좋은 기회로서 기업, 투자자, 감독당국 등 모든 시장참여자들이 국제회계기준에 대한 성공적인 정착을 위한 준비와 노력을 해야 할 것이다. IFRS(International Financial Reporting Standards) was established to consolidated differing international accounting standards which is adopted by the IASB(International Accounting Standards Board). IFRS is used as the accounting standard for the international capital market. Currently, over 110 different nations and 80% of the OECD countries have adopted the IFRS as their accounting standard, so that increasingly IFRS is becoming the global trend. Korea will be wholly adopted in a Big Bang style. In 2011, all listed firms must adopt the international accounting standard. IFRS are considered principles based set of standards in that they establish board rules as well as dictating specific treatments. The ultimate parent/ holding company of a group must produce consolidated financial statements including all of its subsidiaries. All assets and liabilities must be evaluated by fair value. Adopting IFRS is to improve the transparency of Korean capital market, there needs to be comprehensive reform that encompasses the legal system, financial supervision, and the stock market.

교차로 신호 주기의 실시간 제어를 위한 FUZZY 무게 중심법의 적용에 관한 연구

정진용,박효영 順天靑巖大學 1996 論文集-順天靑巖大學 Vol.20 No.1

Because of continuous change of traffic patterns and increase in traffic volume, effective signal traffic systems should require signal system. Which can flexibly manage road situations that have been changed every hours. In this paper, we study system that can control the intersection signal autonomously with the analysis of situations related to intervals of inter-section signal and traffic volume. We propose the method that fuzzy logic controller(FLC) which is applied to fuzzy logic control traffic signal. In order to prove higher performance of the FLC presented in this paper, We have compared the regular signal systems with fuzzy signal systems.

모델원자들에 의한 전자 산란 단면적 계산

정진,양회룡,최승평,장차익 조선대학교 기초과학연구소 1998 自然科學硏究 Vol.21 No.1

The scattering cross section in model atom is the physical quantity which is susceptible of a reasonably direct experimental measurement and which at the same time lends itself readily to calculation, and which establish contact between scattering theory and scattering experiment to assist each other. We have calculated the differential cross section and total cross sections of electrons by targets which are Cu, S, He, Ne, Ar on the ground state without the targets distortion with the Born approximation and the Eikonal approximation. the electron energies are in the range up to about 1.3 ev∼10 kev. The potential used to represent the interaction between atom and electron in our calculation is the same as that is used by Lens-Jensen in the evaluation of the cross-sections. We used the Gauss Legndre quadrature for our numerical integration in our differential equations.

서식지 특성에 따른 조류군집의 차이

채진확,김정수,구태회 경희대학교 환경연구소 2002 環境硏究 論文集 Vol.11 No.-

This study was carried out to analyze difference of bird communities in Mt. Dae-ryong and Mt. O-eum with habitat characteristics. The number of species and individuals of bird observed in Mt. Dae-ryong and Mt. O-eum were 27 and 309, 26 and 123, respectively. The nesting guild was higher at canopy and bush nesting guild(41% and 30%) compared with hole and water nesting guild(22% and 7%) In Mt. Dae-ryong. The nesting guild was higher at hole and canopy nesting guild(35% and 34%) compared with bush nesting guild(31%) in Mt. O-eum. The forage guild was higher at canopy and bush foraging guild than at water and outside foraging guild in all studied areas. Based on the results, habitat condition was major factor to bird communities because the difference of guilds in this studied areas caused the change of bird communities.

한국산 시궁쥐(Rattus norvegicus)와 곰쥐(Rattus rattus)의 mtDNA RFLPs

김회숙,유선아,백상기,김영진 충남대학교 기초과학연구소 1996 忠南科學硏究誌 Vol.23 No.2

RFLPs(restriction fragment length polymorphisms) of mitochondrial DNA(mtDNA) of Rattus norvegicus and Rattus rattus in Korea were observed. All of the mtDNA of R. norvegicus individuals were shown no variatioin by the single digestion with EcoR Ⅰ, Hind Ⅲ, Ksp Ⅰ, Hind Ⅱ and Cfo Ⅰ as well as the double digestion with BamH Ⅰ/Sac Ⅰ or Hpa Ⅰ/Xba Ⅰ. Morph-1(18.75%) and morph-2(81.25%)) were observed by digestion with Hind Ⅱ in mtDNA of R. norvegicus. Morph-1(91.70%) and morph-2(8.30%) were observed by digestion with Cfo Ⅰ in mtDNA of R. norvegicus. In the mtDNA obtained from 3 R. rattus individuals, no variants were observed. The types of mtDNA obtained from 48 R. norvegicus individuals were four types(RN 1, RN 2, RN 3 and RN 4). The frequency of RN 1, RN 2, RN 3 and RN 4 was 66.67%, 14.58%, 6.25% and 12.50%, respectively. The value range of nucleotide diversity in mtDNA of R. norvegicus was between 0.0059 and 0.0153, and the value of nucleotide diversity of mtDNA between R. norvegicus and R. rattus was 0.13. The divergence time between the two species is believed to be 6.5 million years ago.

도서지역 학생의 학업성취도와 교육환경의 관계 연구

기진서,정회욱 木浦大學校敎育硏究所 2005 교육연구 Vol.18 No.-

본연구의 목적은 첫째 서남해 도서지역 학생들의 학업성취도에 영향을 미치는 교육환경 변인들을 조사 분석하여 학업성취도와 교육환경에 대한 학생과 교사의 평가를 알아보고, 둘째 회귀분석을 통해 학업성취도와 교육환경간의 관계를 교사의 관점과 학생의 관점에서 분석하는 것이다. 본 연구는 우리나라 서남해 지역 도서의 대부분이 위치해 있는 신안군, 완도군, 진도군, 지역의 교사와 학생을 연구대상으로 하였으며, 표집은 신안군 교사 175명 학생 320명, 완도군 교사 185명 학생 350명, 진도군 교사 10명 학생 50명 등 총 교사 370명 학생 720명으로 전체 1,090명이다. 본 연구의 결과 요약하면 첫째, 도서지역 교육환경에 대한 전체적인 만족도가 교사와 학생 모두에게서 보통보다 낮게 나타났으며, 특히 지역환경에 대한 만족도는 아주 낮게 나타났다. 둘째, 교사가 평가한 학생의 학업성취도에 미치는 교육환경 변인들의 영향을 회귀분석한 결과 학습환경(beta=.631). 학교환경(beta=.207). 지역환경(beta=.205) 순으로 영향력이 큰 것으로 나타났으며, 이들 세 변인들의 학업 성취도에 대한 설명력은 51.8%로 나타났다. 셋째, 학생이 평가한 학업성취도에 미치는 교육환경 변인들의 영향을 회귀분석한 결과 학교환경(.377).지역환경(beta=.185).가정환경(beta=.110)순으로 학생들의 학업성취도에 대한 영향력이 큰 것으로 나타났으며, 이들 세 변인들의 학업성취도에 대한 설명력은 26.9%로 나타났다. The main purposes of the present study are to investigate (1) the extent to which students and teachers in the Southwest of Korea are satisfied with the educational environments and students' academic achievement. (2)the relationships between educational environments and students' academic achievement from the perspectives of teachers and students. and (3) how to improve educational environments in islands in the southwest of Korea. To fulfill the goals of the present study, we surveyed 175teachers and 302 students and 320 students from shinan county. 185 teachers and 350 students from Wando county. and 10 teachers and 50 students from Jindo county. totaling 370teachers and 720 students (1.090 individuals). and carried out descriptive and multiple regression analyses. There conclusions were drawn from data analysis. First, generally, students and teachers were not satisfied with their educational environments. Second. from the perspectives of teachers. study environments, school environments. and local environments significantly (51.8%) explained students, academic achievement. Third, from the perspective of students, school environments, local environments, and family environments significantly (26.(%) explained students', academic achievement.