임신과 성매개 질환

이정헌 대한산부인과학회 2021 대한산부인과학회 학술대회 Vol.107 No.-

영상이해환경을 위한 자료 구조의 분석 및 개선 방향에 관한 연구 ( The study of analysis and improvement of data structure for Image Understanding Environment )

이정헌,채옥삼 대한전자공학회 1997 대한전자공학회 학술대회 Vol.1997 No.1

갑상선 질환의 병리조직학적 검색

이정헌,신은식,김유문,서인수,홍석재 慶北大學校 醫科大學 1973 慶北醫大誌 Vol.14 No.1

1965년 1월부터 1971년 12월 까지의 만 7년간에 걸쳐 경북대학교 의과대학 병리학 교실에서 행한 갑상선 조직의 외과적 생검 총 167예를 대상으로 하여 그 통계적 관찰을 한 결과를 요약하면 다음과 같다. 총 167예중 선천적 질환이 2예(1.2%), 염중성질환이 15예(9.05), 갑상선 비대증이 98예(58.7%), 종양성 질환이 52예(31.1%)이었다. 전체적으로 남성이 19예(10.5%), 여성이 148예(89.5%)로서, 여성이 압도적이었다. 그러나 각 질병별로 볼 때 남성이나 여성이나 비슷한 분포를 보였으며, 연령별로는 여성은 20대에서 30대에 많았으며, (99예 67%), 남성은 30세 이전에 많았다. (11예, 57.7%) 양성종양은 20대에서 30대에 많았으나, 악성종은 오히려 40대에 가장 많았다. 단일 질환으로 가장 많은 것은 결절성 갑상선 비대증으로서, 여성이 75예, 남성이 7예로서, 남성이나 여성이나 모두 가장 많았으며, 전체적으로 49.1%를 차지하였다. The histopathological survey was made of 167 cases of thyroid disease based on biopsy materials, which were derived to Department of Pathology, Kyungpook National University School of Medicine for 7 years from Jan. 1. 1965 to Dec 31, 1971. The results were summarized as follows: Congenital disease occupied 1.2% (2 cases); inflammatory disease 9.0%(15 cases); functional goiter 58.7%(98 cases); neoplastic disease 31.1% (52 cases). Most of patients were female (148 cases, 89.5%) and male occupied only a small proportion (19 cases, 10.5%). But no significant difference was found in disease entity between male and female. Female showed highest incidence at 3rd and 4th decade. Benign neoplasias were common at 3rd and 4th decade but malignant tumor was most common at 5th decade. Most common disease was adenomatous goiter, which occupied 48%.

효율적인 영상처리 교육을 위한 통합 환경 개발에 관한 연구

이정헌,채옥삼,안용학 대한전자공학회 2004 電子工學會論文誌-SP (Signal processing) Vol.41 No.06

With the wide-spread use of multimedia technology, the demand for the image processing engineer is increasing in various fields. But there are few engineers who can develop practical applications in the image processing area. To teach practical image processing techniques, we need an integrated education environment which can efficiently present the image processing theory and, at the same time, provide interactive experiments for the theory presented. In this paper, we propose an integrated education environment for the image processing, which is called MTES. It consists of the theory presentation systems and the experiment systems. The theory presentation systems support multimedia data, web document and Microsoft PowerpointTM file. It is tightly integrated with the experiment systems which are developed based on the integrated image processing algorithm development system, called Hello-Vision. 멀티미디어 기술의 광범위한 보급으로 여러 분야에서 영상처리 기술 인력에 대한 수요가 증가하고 있으나, 실무능력을 가진 전문 인력의 수는 시장의 요구에 비해 매우 적다. 영상처리 분야에 실무능력을 갖춘 전문 인력을 양성하기 위해서는 이론교육과정과 함께 학습한 이론을 실제 영상자료에 적용하고 적용된 결과를 분석해 볼 수 있는 실습과정을 체계적으로 지원할 수 있는 통합된 교육 환경이 필요하다. 본 논문에서는 효율적인 영상처리 교육이 이루어지도록 이론적인 내용과 이론에 따른 다양한 해법을 직접 체험해 볼 수 있고 학습과정에서 얻어진 새로운 아이디어를 쉽게 구현해 볼 수 있는 통합 환경인 MTES (Multimedia Technology Education System)를 제안한다. MTES는 영상처리 개발 환경인 Hello-Vision을 시뮬레이션 환경으로 사용할 수 있도록 수정하였으며, 이론교육환경과 이론과 실습이 체계적으로 이루어지도록 제어하는 제어관리자를 개발하여 효과적인 영상처리 교육 환경이 되도록 개발하였다.

이성합병증에 대한 임상적 관찰

이정헌 圓光大學校 醫科學硏究所 1987 圓光醫科學 Vol.3 No.2

Until the Sulfonamides began to be used for acute otitis media in 1935 and Penicillin was introduced in 1942, the otogenic complication was main problem in the ENT field. Thereafter, the incidence of acute otitis media and otogenic complication decreased abruptly. The recent development of chemotherapy and antibiotic therapy has resulted in the decreased frequency of the intracranial complication due to otitis media but recently inappropriate and inadequate therapy of these agents and the appearance of resistant strains of bacteria to the antibiotics has been altered the clinical symptom and course. So, early proper diagnosis and adequate treatment of the otogenic complication occasionally has been difficult problem. For two years from June 1986 to June 1988, we have experienced 11 cases of otogenic complication in our department : 2 cases of temporal lobe abscess, 1 case of meningitis, 1 case of pneumocephalus, 6 cases of otologic complication. This is the report of clinical findings on the cases along with literature review.

Methotrexate의 심근독성에 대한 율草의 효과

이정헌,이강창,하대호,손일홍,이환봉,오연균,최대호,김원신,박승택,전병훈 한의병리학회 2001 동의생리병리학회지 Vol.15 No.4

스마트 공공서비스를 위한 N-스크린 서비스 플랫폼 표준규격에 대한 연구

이정헌,이희주,정운교,이승택,장연상,강상욱 한국디지털정책학회 2012 디지털융복합연구 Vol.10 No.1

3개의 배양액내에서 생쥐배아의 발달과 Pronase로 처리한 생쥐배아 부화율의 비교 연구

이정헌,고희정,채규정,이기숙,김종덕,Lee, Jeong-Heon,Go, Hee-Jeong,Chae, Geu-Jeong,Lee, Ki-Suk,Kim, Jong-Duk 대한생식의학회 2001 Clinical and Experimental Reproductive Medicine Vol.28 No.3

Objectives: The purpose of this present study was to compare mouse embryo development in 3 commercial media and hatching competence of mouse embryo with or without enzymatic treatment. Methods: Collected 375 mouse embryos were divided into three groups, and then cultured in IVF-20 (G2), Medicult IVF (M3), P-1 (blastocyst M), respectively. Three day mouse morulae were cultured in G2 media treated with pronase. The results were analyzed using Chi-square test, and considered statistically significant when p<0.01. Results: The developmental rate of 2 cell mouse embryo after 72 hours was highest in IVF-20 (G2) among conventional 3 media. The hatching rate of mouse morulae was low when clultured in G2 media without pronase during 48 hours. However, it was higher when cultured in media treated with $1{\mu}g/ml$, $2.5{\mu}g/ml$, $5{\mu}g/ml$ pronase, respectively. Conclusions: Using good media and digestion of zona pellucida with enzymatic treatment improve development and hatching rate of embryo. Therefore, implantation and pregnancy rate could be improved.

Burley 21 담배에서 Putrescine N-Methyltransferase 유전자의 클로닝

이정헌,김선원,류명현,박성원 한국연초학회 2003 한국연초학회지 Vol.25 No.2

Recently, many researches for plant alkaloids, one of the largest groups of natural products, are reported because of their various pharmacological activity. This study was carried out to clone putrescine N-methyltransferase (PMT) gene which is a key enzyme in diverting polyamine metabolism towards the biosynthesis of nicotine and related alkaloids from Burley tobacco. To induce expression of PMT gene in tobacco plant, the floral meristem was removed and then mRNA was purified from root. cDNA encoding PMT gene was isolated by RT PCR and cloned. Three different groups of clones were screened by PCR and restriction enzyme digestion analysis and were characterized. The data of these screening revealed that three types of PMT are present in Burley tobacco. Comparison of the nucleotide sequence of this three genes encoding putative PMT with those of other tobaccos revealed that two types of PMT are newly discovered from Nicotiana tabacum cv. Br21 tobacco and they were same as PMT2, PMT3 of N. tabacum cv. Xanthi.

도시 브랜딩을 위한 스토리텔링 전략 활용에 관한 소고(小考)

이정헌 水原大學校 2015 論文集 Vol.29 No.-

This conceptual paper investigated how to utilize the storytelling strategy into the city branding plan in order to enhance the image of city. As an introductory study as well a conceptual approach, this paper showed the difference between city branding and city storytelling. Also this paper proposed that the storytelling strategy should be conducted within the rage of city branding project because city storytelling is a means of city branding strategies. In addition, this paper suggested the process of city storytelling strategy: 1. Clear understanding of the trend and lifestyles of modern day consumers, 2. Finding the target audience of storytelling, 3. Listing up the basic content of storytelling and matching these contents with target audience, 4. Optimization of storytelling contents prior to delivery to the audience 5. Setting up channels of delivering storytelling contents. As a conceptual paper, this paper was lack of empirical data, however this paper aimed at building up fundamental ideas and concept for further research.