Evaluation of Biogas Valorization as a Carbon Source for Methanotrophic Biomass and PHB Production

Seung Woon HYUN,Ok Kyung LEE,Eun Yeol LEE 한국생물공학회 2023 한국생물공학회 학술대회 Vol.2023 No.10

요골동맥을 이용한 관동맥 조영술의 유용성

윤정한,이승환,이한요,김장영,김일회,최윤종,이형준,이명옥,김승년,황성오,홍인수,최경훈 대한순환기학회 1998 Korean Circulation Journal Vol.28 No.10

요골동맥을 이용한 관동맥 중재시술의 경험

윤정한,이승환,김장영,이한요,이명옥,김승년,황성오,최경훈 대한순환기학회 1998 Korean Circulation Journal Vol.28 No.9

Sarcomatoid Carcinoma Arising from Mature Cystic Teratoma

Ho-Chang Lee1, Seung-Myoung Son, Yong-Moon Lee, Ji Hae Koo, Song-Yi Choi, Ok-Jun Lee, Eun-Hwan Jeong 충북대학교 동물의학연구소 2012 Journal of Biomedical and Translational Research Vol.13 No.2

Malignant transformation of mature cystic teratoma (MCT) is rare. Sarcomatoid carcinoma is a neoplasm comprising malignant mesenchymal cells and a conventional carcinomatous area. Here, we report on a case of sarcomatoid carcinoma arising from an MCT in the left ovary of a 45-year-old female. A unilocular cyst consistent with MCT was observed; however, a nodule within the cyst was confirmed from the resected ovary. Microscopically, the nodule showed both squamous cell carcinoma and pleomorphic sarcomatous components admixing with each other. Lining epithelial cells at the periphery of the main tumor showed squamous metaplasia. When a sarcomatous component is observed in the ovary tumor, it is important to find a squamous cell component, either benign or malignant.

Pneumatosis intestinalis and portal venous gas secondary to gefitinib therapy for Lung adenocarcinoma

( Joo Young Lee1 ),( Hye-suk Han ),( Sung-nam Lim ),( Young Kwang Shim ),( Yong Hyeok Choi ),( Ok-jun Lee ),( Ki Hyeong Lee1 ),( Seung Taik Kim ) 대한내과학회 2011 대한내과학회 추계학술대회 Vol.2011 No.-

혈액 투석 환자에서 중심정맥 협착에 대한 스텐트 삽입술 : Wallstent Placement

임대승,노상필,이유선,정승현,김보영,이정우,강정아,김정희,이민수,정준용,최시완,정진옥,성인환,이강욱,신영태 충남대학교 의과대학 의학연구소 2002 충남의대잡지 Vol.29 No.1

Stenosis of central vein is a common complication arising after percutaneous subclavian vein catheter insertion performed for temporary vascular access in chronic renal failure patients undergoing hemodialysis. There are several treatment methods for the condition like percutaneous angioplasty(PTA), stent insertion, and surgery, but recent trend is toward PTA and stents. Among the patients diagnosed with chronic renal failure from March 1993 to May 2002 and undergoing hemodialysis through AV fistula, the 14 Patients in whom central vein stenosis arose were selected for the study. A total of 28 percutaneous interventions(5 PTA and 23 stent placement) were performed, and restenosis rate and the time taken till the restenosis in de novo lesions and instant lesions were compared. All 28 cases were operated successfully. The 14 cases that received both anigioplasty and stent placement initially. (de novo lesion : 14 cases), Among the 10 cases with de novo lesion that followed up more than 1 year, 3 cases are currently undergoing hemodialysis without restenosis, and the remaining 7 cases have recurred stenosis with the mean time to restenosis of 10.9 months. In the 7 cases in whom stenosis recurred, 11 interventions were done(instent lesion: 11 cases). 4 of these were using only ballon angioplasty with 100% restenosis rate and the mean time of 3 months until restenosis. The remaining 7 cases were using both balloon angioplasty and stent placement, also with 100% restenosis rate but with the mean time of 12 months until restenosis, which was later than the group receiving only balloon angioplasty. In treating the patients with central vein stenosis, stent placement seems to be more advantageous over PTA in terms of restenosis rate and the mean duration of patency. In the case of instent lesion, inserting the stent for the second time after stenosis recurred lengthened the duration of patency compared to performing balloon angioplasty alone.

국내에서 유행하는 HIV의 전파 경로에 따른 Subtype 분포

이주실,남정구,김성순,강춘,최병선,김옥진,박미선,성봉모,서순덕,전수경,변승옥,신영오,조해월 대한감염학회 2001 감염 Vol.33 No.5

Background : Previous data have been reported that subtype B is prevalent in South Korea, but neither the extent nor the proportion of subtypes could be evaluated. This study was designed to analyze the distribution of HIV-1 subtypes, temporal instructions and transmission dynamics between epidemiological groups. Methods : 1,280 Koreans had been diagnosed as HIV seropositive during the period 1985 to 2000. Among them, 134 individuals were selected for this molecular epidemiological study. 134 DNAs were isolated from uncultured or cultured peripheral blood mononuclear cells. V3-V5 (0.7 kb) fragment of HIV-1 env gene was amplified by nested polymerase chain reaction and was sequenced. Results : HIV-1 isolates from thirty-seven homosexuals were all subtype B (100%). On the other hand, 66 isolates from 94 heterosexuals were subtype B (70%) and 28 were non B subtypes (30% : 13 A, 4 C, 2 D, 8 E , 1 G). Only subtype B strains were isolated from 73 males who were infected with HIV inside Korea while 16 B and 20 non B subtype strains were isolated from 36 males who were HIV infected outside of Korea. However, B and non B strains were isolated half and half from females who were infected inside Korea except one. Conclusion : The HIV-1 subtype B strains are prevalent in Korea from the early HIV infection until present in both homo and heterosexuals. Non B strains have been transmitted from men who were infected outside Korea to their spouses and casual partners. So, we need further study to monitor subtype B and non B HIV transmission in epidemiological groups of Korea, (Korean J Infect Dis 33:311∼318, 2001)

20세기 패션 일러스트레이션의 발달에 관한 연구

이승옥 우석대학교 자연과학연구소 1997 自然科學硏究論文集 Vol.1 No.-

Fashion Illustration is a kind of cultural penomena. Therefore it has its own history. In this paper 1 surveyed the historical change and characteristics of fashion illustration. Fashion illustration was much influenced by fashion magazine. <Vogue>. In 50s and 60s it flourished when Vogue focused on fashion illustration. Now fashion illustration in fashion magazines is almost dead. In the eighties editorial illustrations experienced a "Renaissance". New high-level illustration magazines were found.

저주파음에 의한 자리돔, Chromis notatus의 청각 능력 : 청각 문턱치

이창헌,서익조,오승훈,김병엽,서두옥,김동근 제주대학교 해양과환경연구소 2001 해양과환경연구소 연구논문집 Vol.25 No.-

In order to obtain the fundamenal data about method of luring fish schools by underwater sound, this experiment was carried out to investigte the auditory threshold of coralfish Chromis notatus which was on the coast of Jeju island by heartbeat conditioning technique using pure tones coupled with a delayed electric shock. The coralfish could hear a sound in the frequency range from 80 ㎐ to 800 ㎐. The mean auditory thresholds of coralfish at the frequencies of 80 ㎐, 100 ㎐, 200 ㎐, 300 ㎐, 500 ㎐ and 800 ㎐ were 100 ㏈, 99 ㏈, 91 ㏈, 88 ㏈, 96 ㏈ and 114 ㏈, respectively. As the frequency became higher than 300 Hz the auditory threshold increased rapidly.

영․유아 그림 표상 특성에 관한 연구

이승옥,최은영,임지향 대구대학교 특수교육재활과학연구소 2005 再活科學硏究 Vol.23 No.2

The purpose of this study was to refer a symbolic characteristic of painting during scribbling period by applying a task condition, to present basic data about effective symbolic painting by analyzing a process of a construct activity, and to examine verification of effectiveness in the Korean infant. The one way anova is carried out to find out a symbolic characteristic of painting of Age(4)X group and the two way anova to Group(2)×Age(4), is conducted to figure out the difference of NC performance owing to task presented type upon age bracket. The followings were ostensive purposes of this study. First, there would be differences in symbolic characteristic by tasks and ages(the total score, the score of symbol inside the outline, the score of constituent, the score of pair symbolic). Second, the NC performance would differ in symbolic characteristic by age and painting type(the total score, the score of symbol inside the outline, the score of constituent, the score of pair symbolic). The study participants were randomly selected one - three years old infants (total of 80) who attend in an infant home in northern Daegu. They were divided in four groups. Each age group was presented two type of painting and multivariate analysis was taken in order to compare and analyze paintings. The result of this study was followed. First, the characteristic of painting symbol was different by task and age. The expressive ability in total score, constituent of object, pair symbolic in P task and DC task was increased as aging. Among the group of infants aged 1.5 - 2.5, P task was performed better than DC task, and the score of P task and DC task was equally heightened as they become age of 3. Second, NC performance owing to task presented type upon age bracket would be different (the total score, the score of symbol inside the outline, the score of constituent, the score of pair symbolic). The older has shown more expressive ability in two type of painting. NC task was taken after pre- P task and -DC task, but the symbolic score of NC task differed from. NC task followed by P task represented the more constituents and pair symbols than by DC task. Therefore, this study found out that the development of symbolic level in infant had close relationship with an age, the symbolic abilities in different painting tasks differed order of P task, DC task, and NC task, and symbolic painting was shown from infant age 1.5-2. 본 연구는 초기 그림 표상 출현과정을 살피기 위한 것으로 구체적인 가설은 다음과 같다. 첫째, 과제별 연령에 따른 그림 표상의 특성(총점수, 윤곽선 안의 표상의 점수, 대상의 구성요소 표상의 점수, 쌍표상의 점수)은 차이가 있을 것이다. 둘째, 연령별 과제 제시유형에 따른 NC과제 수행(총점수, 윤곽선 안의 표상의 점수, 대상의 구성요소 표상의 점수, 쌍표상의 점수)은 차이가 있을 것이다. 연구대상은 00시에 위치한 어린이집에 재원중인 1-3세 유아 총80명을 무선선정하여 연령별로 4집단을 나누고 각 연령집단별로 두 그룹으로 나누어 서로 다른 유형의 과제를 실시하였다. 즉 한 그룹은 P과제 이후 NC과제를 실시하였고, 다른 한 그룹은 DC과제 이후 NC과제를 실시하였다. 과제실시 이후 각 과제에서 얻어진 표상그림을 채점하였다. 자료처리는 과제별 연령에 따른 그림표상의 특성을 살펴보기 위해 연령(4)x집단간의 일원 다변량분석을 실시하였고, 연령별 과제 제시유형에 따른 NC과제 수행의 차이를 보기 위하여 집단(2)×연령(4)에 대하여 2원 다변량분석을 실시하였다. 본 연구의 결과를 요약하면 다음과 같다. 첫째, 과제별 연령별에 따른 그림 표상의 특성은 차이가 있다. 연령에 따라 P과제 또는 DC과제 모두가 총점수, 대상의 구성요소, 쌍표상의 표현능력은 연령이 높음에 따라 표상능력이 증가함을 알 수 있었다. 1.5세-2.5세에서는 P과제가 DC과제보다 훨씬 잘 수행했으며 3세가 되면서 P과제와 DC과제 점수가 같이 높아졌다. 둘째, 연령별 과제 제시유형에 따른 NC과제 수행은 차이가 있다. 연령이 증가 할수록 과제 제시유형에서 과제의 표상 능력도 증가하였다. 연령에 따라 P과제 선행 후 NC과제와 DC과제 선행 후 NC과제의 표상의 점수는 다르다. P과제 선행 후 NC과제가 DC과제 선행 후 NC과제에서 보다 더 많은 대상의 구성요소, 쌍표상을 표현한 것으로 나타났다. 따라서, 본 연구를 통해 유아의 표상 수준의 발달은 연령과 밀접한 관계가 있고 과제에 따른 그리기 표상능력도 P과제, DC과제, NC과제 순으로 일어나며, 표상적 그리기가 1.5세와 2세경에 시작된다는 것을 보여준다.