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Congenital Non-Neural Granular Cell Tumor Mimicking Nevus Lipomatosus Superficialis
( Jun Yeong Park ),( Won Joo Kwon ),( Bok Won Park ),( Eun Byul Cho ),( Eun Joo Park ),( Kwang Ho Kim ),( Kwang Joong Kim ) 대한피부과학회 2017 Annals of Dermatology Vol.29 No.6
A 4-month-old infant presented with asymptomatic soft nodules on his right forearm, which had developed since birth. On the suspicion of nevus lipomatosus superficialis (NLS), biopsy was performed. Histopathologic findings showed monomorphic polygonal cells with abundant granular cytoplasm. Immunohistochemical stains for CD68 and vimentin were strongly positive, but were negative for S-100 protein. Based on the pathologic findings, the patient was diagnosed as non-neural granular cell tumor (NN-GCT). GCT can be divided into conventional and non-neural GCT by immunoreactivity for S-100 protein. NN-GCT is typically manifested as a well-circumscribed, papulo-nodular dermal mass, and is known to occur in a younger group than does in conventional GCT, but is rare among children. To our knowledge, there have been no case reports of NN-GCT which appeared at birth and presented as grouped nodules. Therefore, we report this interesting case of congenital NN-GCT clinically mimicking NLS. (Ann Dermatol 29(6) 776∼778, 2017)
지방공기업의 재정성과에 영향을 미치는 외부환경 요인에 관한 연구 -도시개발공사를 중심으로
전영준 ( Jun Yeong-jun ),곽선주 ( Kwak Sun-joo ) 한국자치행정학회 2017 한국자치행정학보 Vol.31 No.2
With local public enterprises` growing debts causing concerns for local finances, there is an increasing need for effective measures to improve the financial performance of local public enterprises. With this in mind, the present study has explored environmental factors influencing the financial performance of local public enterprises using panel data from 2006 to 2015 involving 16 Urban Development Corporations under Regional Governments in Korea. The study has found that the financial autonomy of local governments as a financial factor and the approval rating and political ideology of chief executive officers as a political factor have a statistically significant effect on the financial performance of Urban Development Corporations. In addition, the financial performance of other Urban Development Corporations as a legitimacy factor was also found to have a significant effect. Taken together, these results suggest that the financial performance of local public enterprises is affected not only by their internal organizational characteristics but also by their external environmental factors including their interaction with the host governments. The policy implications made by this study are clear: First of all, in the short term, institutional arrangements need to be in place to improve the decision-making capability of local chief executive officers and also strengthen legislative control over the government and its public enterprises. In the long term, it is necessary for local governments to provide local public enterprises with managerial discretion and political independence and instead make sure that they assume responsibility for their financial performance.
TABAS: Text augmentation based on attention score for text classification model
Yeong Jae Yu,Seung Joo Yoon,So Young Jun,Jong-Woo Kim 한국통신학회 2022 ICT Express Vol.8 No.4
To improve the performance of text classification, we propose text augmentation based on attention score (TABAS). We recognized that a criterion for selecting a replacement word rather than a random selection was necessary. Therefore, TABAS utilizes attention scores for text modification, processing only words with the same entity and part-of-speech tags to consider informational aspects. To verify this approach, we used two benchmark tasks. As a result, TABAS can significantly improve performance, both recurrent and convolutional neural networks. Furthermore, we confirm that it provides a practical way to develop deep-learning models by saving costs on making additional datasets.
Knockdown of Archvillin by siRNA Inhibits Myofibril Assembly in Cultured Skeletal Myoblast
Yeong Mi Lee,Hyun Suk Kim,Jun-Hyuk Choi,Jae-Kyoung Choi,Young Mi Joo,Seung-Ju Ahn,Byung-In Min,Chong-Rak Kim 대한의생명과학회 2007 Biomedical Science Letters Vol.13 No.4
A myofiber of skeletal muscle is composed of myofibrils, sarcolemma (plasma membrane), and constameres, which anchor the myofibrils to the sarcolemma. Achvillin is a recently identified F-actin binding muscle protein, co-isolates with dystrophin and caveolin-3 in low-density sarcolemma of striated muscle, and colocalizes with dystrophin at costameres, the specialized adhesion sites in muscle. Archvillin also binds to nebulin and localizes at myofibrillar Z-discs, the lateral boundaries of the sarcomere in muscle. However other roles of archvillin on the dynamics of myofibrillogenesis remain to be defined. The goal of this study is, by using siRNA-mediated gene silencing technique, to investigate the effect of archvillin on the dynamics of myofibrillogenesis in cell culture of a mouse skeletal myogenic cell line (C2C12), where presumptive myoblasts withdraw from the cell cycle, fuse, undergo de novo myofibrillogenesis, and differentiate into mature myotubes. The roles of archvillin in the assembly and maintenance of myofibril and during the progression of myofibrillogenesis induced in skeletal myoblast following gene silencing in the cell culture were investigated. Fluorescence microscopy demonstrated that the distribution of archvillin was changed along the course of myofibril assembly with nebulin, vinculin and F-actin and then located at Z-lines with nebulin. Fluorescence microscopy demonstrated that knockdown of mouse archvillin expression led to an impaired assembly of new myofibrillar clusters and delayed fusion and myofibrillogenesis although the mouse archvillin siRNA did not affect those expressions of archvillin binding proteins, such as nebulin and F-actin. This result is corresponded with that of RT-PCR and western blots. When the perturbed archvillin was rescued by co-transfection with GFP or Red tagged human archvillin construct, the inhibited cell fusion and myotube formation was recovered. By using siRNA technique, archvillin was found to be involved in early stage of myofibrillogenesis. Therefore, the current data suggest the idea that archvillin plays critical roles on cell fusion and dynamic myofibril assembly.
( Jun Yeong Park ),( Min Kyun Ahn ),( Eun Byul Cho ),( Eun Joo Park ),( Kwang Ho Kim ),( Kwang Joong Kim ) 대한피부과학회 2017 대한피부과학회 학술발표대회집 Vol.69 No.2
Background: Dual frequency ultrasound (DFU) emerged as a new treatment modality for improving inflammatory skin disorders; however, there are a limited number of efficacy studies Objectives: This study investigated the effect of DFU on patients with refractory rosacea. Methods: We retrospectively analyzed medical records of forty two patients with refractory rosacea (erythematotelangiectatic rosacea [ETR], n = 26; papulopustular rosacea [PPR], n = 14, mixed, n=2). The patients were treated with DFU twice per week for the first week, and then once per week thereafter. Efficacy was assessed by erythema index (EI), transepithelial water loss (TEWL), and patient self-assessment (PSA). Results: Treatment with DFU resulted in significant decrease in EI, TEWL, and PSA. No significant difference was noted between in ETR and PPR. Conclusion: Application of DFU in patients with refractory rosacea resulted in improvement in persistent erythema, barrier dysfunction and patient-reported symptoms. DFU may be an additional treatment option for rosacea which is resistant to other treatments.
[P148] A case of allergic contact dermatitis due to ciprofloxacin otic drop
( Jun Yeong Park ),( Ye Ji Jang ),( Eun Byul Cho ),( Eun Joo Park ),( Kwang Ho Kim ),( Kwang Joong Kim ) 대한피부과학회 2017 대한피부과학회 학술발표대회집 Vol.69 No.1
A 51-year-old man presented with erythematous scaly papules and patches with oozing on the right ear lobe, face, and neck for two months. He had a history of canal wall up mastoidectomy with canaloplasty due to chronic otitis media with tympanic membrane rupture about a year ago. Ciprofloxacin otic drop had been used 1 month after the surgery because of continuous otorrhea, which was considered as surgical complication. Pruritic papules and patches with oozing and crust formation spread from right ear lobe to cheek and neck after using ciprofloxacin otic drop. As patch test showed positive results for otic drop, patient was diagnosed as allergic contact dermatitis (ACD) due to ciprofloxacin ear drop. ACD caused by topical antibiotics is rare, but well documented side effect. Aminoglycoside, polypeptides, β-lactam, macrolide, benzoyl peroxide, clindamycin, mupirocin, fusidic acid are well-known antibiotic sensitizer. However, fluoroquinolone as a potent contact allergen had not been reported to our knowledge. Indeed our case presented strong positivity in patch test, which can be an obvious evidence for fluroquinolone as a potent skin sensitizer. We herein report this interesting case of ACD caused by ciprofloxacin otic drop.
주영특,김영채,정동준,김홍률 한국농림기상학회 1999 한국농림기상학회지 Vol.1 No.2
This study was carried out investigate spectral characterisistics and chlorophyll contents of Pinus koraiensis needles in Gwangju-gun, Kyunggi-do. In spectrum analysis by each age, needle showed difference on 700~1,100 nm(NIR : near in frared ray). Light reflexibility keeps constant between lst year needle and 3rd year needle, current year needle's value was higher than others and that was higher for 400~500 nm at 550 nm, Transmission to needle's age showed the highest result in current year needle. It showed in order of current, lst, 2nd and 3rd year needle at 550 nm and 750 nm. Especially, current year needles of Pinus Koraiensis showed a tendency to change transmission coefficient in NIR. The result of transmission coefficient measurement by each position of slope showed in order of middle slope, upper slope and lower slope. But the gathered needle in middle slope made marked change at NIR. Chlorophyll a content of the upper slope's needles was higher than other 4 positions but a component ratio was lower. In needle of the oppressed tree, Chlorophyll a content was rather low than others. Chlorophyll a content by slope positions, the upper slope's needle showed a highest value(4.48 mg/g) and lower slope was lowest value(1.35 mg/g). Chlorophyll b content also showed a similar tendency to chlorophyll a and chlorophyll(a+b) contents.