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괴사후성과 비괴사후성 간경변증에서 원인별 주석교질 (^99mTc-tin colloid) 간스캔의 차이
이헌영,허승식,이강욱,정현용,김삼용,신영태,김영건,노흥규 충남대학교 의과대학 지역사회의학연구소 1992 충남의대잡지 Vol.19 No.2
The differences of the liver scintigraphic features between postnecrotic and nonpostnecrotic liver cirrhosis were studied for 69 patients. Degrees of mottling and splenomegaly were no different between two groups but shrinked form was more frequent finding in postnecrotic type(23:10), and normal shape & enlarged left lobe with shrinked right lobe were relatively dominant in non-postnecrotic group(15:6, 10:2). Grade of extrahepatic uptake of ^99mTc-tin colloid was significantly higher in Child-Pugh B & C group than A group(p<0.05), but there was no difference between postnecrotic and non-postnecrotic groups. These will be important results on the dicision for the presence of cirrhosis according to the variable causes.
Three Cases of Generalized Lichen Nitidus
Ro, Byung In,Lim, Hyun Sang,Seo, Seong Jun,Hong, Chang Kwun,Ro, Sung Wook,Chun, Tae Jong,Shim, Joo Hyun,Kim, Meyung Nam 대한피부과학회 1999 Annals of Dermatology Vol.11 No.4
Lichen nitidus(LN) is an uncommon chronic inflammatory disease of shiny, flat-topped, flesh-colored uniform papules most commonly located on the penis, forearms and wrists, lower abdomen, and thighs. LN almost has localized distribution, but in rare cases, it may become generalized. In Korea, three cases of generalized LN were reported. We report here three cases of generalized lichen nitidus in 31-year-old man, 8-year-old boy, and 6-year-old girl who had generalized numerous pinhead-sized, erythematous to flesh-colored, shiny papules. Microscopically, they had typical appearance of LN.
Self-Sealing of Nanoporous Low Dielectric Constant Patterns Fabricated by Nanoimprint Lithography
Ro, Hyun Wook,Peng, Huagen,Niihara, Ken-ichi,Lee, Hae-Jeong,Lin, Eric K.,Karim, Alamgir,Gidley, David W.,Jinnai, Hiroshi,Yoon, Do Y.,Soles, Christopher L. WILEY-VCH Verlag 2008 ADVANCED MATERIALS Vol.20 No.10
<B>Graphic Abstract</B> <P>The cross-sectional TEM image shows that line-space patterns can be directly imprinted, with high fidelity, into highly porous spin-on organosilicate materials. This publication quantifies how the porosity and distribution of pores within the patterns are affected by the nanoimprint lithography processes, including evidence for a densified pattern surface. <img src='wiley_img/09359648-2008-20-10-ADMA200701994-content.gif' alt='wiley_img/09359648-2008-20-10-ADMA200701994-content'> </P>
Design of a PWHR Decommissioning Waste Assessment Program Applying the Work Difficulty Factor
Hyun Young Shin,Kyu Tae Park,Chan Hee Park,Sung Ryul Kim,Jung Min Oh,Ba Ro Lee,Ji Ung Kim,Hye Jin Kim,So Yun Jeong,Wook Jae Yoo 한국방사성폐기물학회 2023 한국방사성폐기물학회 학술논문요약집 Vol.21 No.2
The domestic Pressurized Heavy Water Reactor (PWHR) nuclear power plant, Wolsong Unit 1, was permanently shut down on December 24, 2019. However, research on decommissioning has mainly focused on Pressurized Water Reactors (PWRs), with a notable absence of both domestic and international experience in the decommissioning of PHWRs. If proper business management such as radiation safety and waste is not performed, it can lead to increased business risks and costs in decommissioning. Therefore, the assessment of waste volume and cost, which provide fundamental data for the nuclear decommissioning process, is a crucial technical requirement before initiating the actual decommissioning of Wolsong Unit 1. Decommissioning radiation-contaminated structures and facilities presents significant challenges due to high radiation levels, making it difficult for workers to access these areas. Therefore, technology development should precede decommissioning process assessments and safety evaluations, facilitating the derivation of optimal decommissioning procedures and ensuring worker safety while enhancing the efficiency of decommissioning operations. In this study, we have developed a program to estimate decommissioning waste amounts for PHWRs, building upon prior research on PWR decommissioning projects while accounting for the specific design characteristics of PHWRs. To evaluate the amount of radioactive waste generated during decommissioning, we considered the characteristics of radioactive waste, disposal methods, packaging container specifications, and the criteria for the transfer of radioactive waste to disposal operators. Based on the derived algorithm, we conducted a detailed design and implemented the program. The proposed program is based on 3D modeling of the decommissioning components and the calculation of the Work Difficulty Factor (WDF), which is used to determine the time weighting factors for each task. Program users can select the cutting and packaging conditions for decommissioning components, estimate waste amount based on the chosen decommissioning method, and calculate costs using time weighting factors. It can be applied not only to PHWRs, but also to PWRs and non-nuclear fields, providing a flexible tool for optimizing decommissioning process.
A Case of Myelodysplastic Syndrome in Pregnancy combined with HELLP Syndrome
( Hyun Kyung Kim ),( Keun Young Cheon ),( Yong Wook Kim ),( Duck Yeong Ro ),( Tae Eung Kim ),( Jong Chul Shin,),( Jang Heup Kim ),( Byung Joon Park ) 대한산부인과학회 2014 대한산부인과학회 학술대회 Vol.100 No.-
The myelodysplastic syndromes (MDS) include a heterogeneous group of clonal hematopoietic stem cell disorders characterized by ineffective hematopoiesis, characteristic bone marrow and peripheral blood morphologic findings and a variable risk of progression to acute leukemia. Although the exact incidence of MDS in pregnancy is unknown, it is likely to be less than 1 per 100,000 pregnancies annually. The HELLP syndrome, which is characterized by hemolysis, elevated liver enzymes and low platelets, complicates 4 to 14% of preeclamptic or eclamptic pregnancy. The authors have experienced a case of HELLP syndrome combined with myelodysplastic syndrome in pregnancy. Baby was successfully delivered by cesarean section at near term and mother was well recovered. As pregnancy associated with MDS is a rare situation, more evidence and knowledge regarding its evolution and management are needed.
A New Cyclic Triterpene Saponin from Phyteuma japonicum
Ro Lee, Kang,Sub Kim, Chung,Wook Kwon, Oh,Yeou Kim, Sun,Hyun Kim, Ki Japan Institute of Heterocyclic Chemistry 2014 Heterocycles Vol.89 No.8
<P>A new cyclic triterpene saponin, phyteujaposide (1) and eight known compounds (2-9) were isolated from the leaves of Phyteuma japonicum. The structure of the new compound (1) was elucidated by 1D and 2D data analysis, acid hydrolysis and GC-MS. Compounds 7 and 9 potently inhibited the NO production in LPS-activated BV-2 cells and compounds 5 and 6 showed a significant secretion induction of NGF in C6 glioma without cell toxicity.</P>
P155 : Clinical study of patients with alopecia (2007~2014)
( Hyun Ok Son ),( Sang Yoon Lee ),( Sin Wook Chun ),( Suk Young Lee ),( Byung In Ro ) 대한피부과학회 2014 대한피부과학회 학술발표대회집 Vol.66 No.2
Background: Alopecia is a loss of hair from scalp or body. Although alopecia is rarely related with life-threatening diseases, the concerns about it have been increasing because alopecia has an effect on quality of life psychosocially and cosmetically. Objectives: To evaluate the clinical characteristics of patients with alopecia including androgenic alopecia(AGA) and alopecia areata(AA; AT, AU included). Methods: We retrospectively examined the medical records with 2758 out-patients who were diagnosed as alopecia in the Alopecia Clinic, Department of Dermatology, Myoungji Hospital during 7 years from March, 2007 to February, 2014. Results: Clinically the number of AGA was 1885(68.3%) followed by those with AA(n=771, 27.9%) and others(4.4%: woolly hair, trichotillomania, cicatricial and telogen effluvium). The number of patients with male pattern hair loss(MPHL) and female pattern hair loss(FPHL) was 1090(40.5%), 795(28.8%) respectively. The ratio of male(51.6%) to female(48.4%) was 1.1:1. Patients in 3rd to 4th decade were the largest group of alopecia at 48.4%. The highest portion was MPHL IIIv(20.0%) and FPHL I(68.6%) among the patients with AGA. Conclusion: This study supports the fact that increasing number of female patients early-onset alopecia recently in Korea.