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Jo, Yong Gu,Shin, Eun Joo,Lee, Young Jae,Yoon, Won Sik,Han, Sung Soo,Lee, Yang Hun,Lee, Yong Rok,Noh, Seok Kyun,Gal, Yeong Soon,Lyoo, Won Seok Wiley Subscription Services, Inc., A Wiley Company 2009 Journal of applied polymer science Vol.113 No.3
<P>To enhance the thermal stability of poly(vinyl alcohol) (PVA) fiber, the fiber was prepared from the gel spinning of high molecular weight (HMW) PVA by using dimethyl sulfoxide/water (8/2, v/v) as a solvent, accompanied with the cross-link by boric acid (B-PVA). In addition, the structure and properties of the B-PVA fiber were compared with those of the HMW PVA fiber obtained by using the same spinning system without cross-linking (NB-PVA). Through a series of experiments, it turned out that cross-linking actualized by an optimum amount of boric acid (0.3 wt % based on PVA) and zone drawing caused significant changes in the properties of HMW PVA gel fiber. That is, cross-linking increased thermal degradation temperatures at each degradation step and amounts of final residues, resulting in improving thermal properties of the PVA fiber. On the contrary, it was found that in the case of the B-PVA fiber, some broadening of the original PVA unit cell occurred, which was identified by the peak shift to lower angle in X-ray diffractogram. The tensile strength and Young's modulus of B-PVA fiber with draw ratio of 15 are 23.1 and 308.3 g/d, respectively. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009</P>
Erosive adenomatosis of the nipple presenting early improvement after short-term cryotherapy
( Kyung-nam Bae ),( Kihyuk Shin ),( Woo-il Kim ),( Min-young ),( Yang Won-ku Lee ),( Hoon-soo Kim ),( Hyun-chang Ko ),( Byung-soo Kim ),( Moon-bum Kim ),( Gun-wook Kim ) 대한피부과학회 2019 대한피부과학회 학술발표대회집 Vol.71 No.1
Erosive adenomatosis of the nipple (EAN) is a rare benign neoplasm characterized by the erosion of the nipple forming crust with serous or bloody discharge. Although there is no pronounced link between its nature course with the malignant transformation, the erosive deformity is directly related to the recurrent functional discomfort and cosmetic problem, resulting in deterioration of the quality of life. A 22-year old woman visited the breast clinic for her persistent deformity of the left nipple. She underwent a core-needle biopsy of a breast mass, which was incidentally found during a breast examination. However, no additional abnormalities were found except for fibrocystic change, and then visited to our clinic for evaluation of the skin lesion. The physical examination revealed serous and bloody erosion on top of the nipple with loss of half of its normal structure. The skin biopsy showed hyperplasia of the tubular structure composed of layers of cuboidal cells, but no atypia or pleomorphism. Then she received four times of cryosurgery every six-weeks, and after 6 months the nipple almost completely healed only remaining a tiny slit-like hole. Although the first choice of treatment for EAN is local excision, it is not quite feasible approach in young-aged female patients given the unsatifactory cosmetical outcomes and the anxiety for invasive procedure. Cryotherapy could be one of the acceptable option for the treatment of EAN.
우리나라 노인여성의 골다공증성 척추골절로 인한 경제적 부담 추계
강혜영,강대룡,장영화,박성은,최원정,문성환,양규현,Kang, Hye-Young,Kang, Dae-Ryong,Jang, Young-Hwa,Park, Sung-Eun,Choi, Won-Jung,Moon, Seong-Hwan,Yang, Kyu-Hyun 대한예방의학회 2008 예방의학회지 Vol.41 No.5
Objectives : To estimate the economic burden of osteoporotic vertebral fracture (VF) from a societal perspective. Methods : From 2002 to 2004, we identified all National Health Insurance claims records for women ${\geq}50$ years old with a diagnosis of VF. The first 6-months was defined as a "clearance period," such that patients were considered as incident cases if their first claim of fracture was recorded after June 30, 2002. We only included patients with ${\geq}$ one claim of a diagnosis of, or prescription for, osteoporosis over 3 years. For each patient, we cumulated the claims amount for the first visit and for the follow-up treatments for 1 year. The hospital charge data from 4 hospitals were investigated to measure the proportion of the non-covered services. Face-to-face interviews were conducted with 106 patients from the 4 study sites to measure the out-of-pocket spending outside of hospitals. Results : During 2.5 years, 131,453 VF patients were identified. The patients had an average of 3.38 visits, 0.40 admissions and 6.36 inpatient days. The per capita cost was 1,909,690 Won: 71.5% for direct medical costs, 20.6% for direct non-medical costs and 7.9% for indirect costs. The per capita cost increased with increasing age: 1,848,078 Won for those aged 50-64, 2,084,846 Won for 65-74, 2,129,530 Won for 75-84and 2,121,492 Won for those above 84. Conclusions : Exploring the economic burden of osteoporotic VF is expected to motivate to adopt effective treatment options for osteoporosis in order to prevent the incidence of fracture and the consequent costs.
( Kyung-nam Bae ),( Kihyuk Shin ),( Woo-il Kim ),( Min-young Yang ),( Won-ku Lee ),( Gun-wook Kim ),( Hyun-chang Ko ),( Byung-soo Kim ),( Moon-bum Kim ),( Hoon-soo Kim ) 대한피부과학회 2019 대한피부과학회 학술발표대회집 Vol.71 No.1
Nodular fasciitis (NF) is a rare benign fibrous tumor related with a proliferative reactive process arising mostly from the muscular fascia or deep subcutaneous region. It distinctively appeared as solitary nodule in young-aged patient with rapid growth, which gives its other name as pseudosarcomatous fibromatosis. A 16-year old boy visited our clinic for the palpable mass on the left shoulder. The initial lesion had already been partially removed by the skin biopsy at local clinic. The biopsy specimen showed only fragments of fibrous mass consisting of collagenous stroma with spindle-shaped cells, but no atypia or mitotic figure. Surgical excision was performed, of which the surgical specimen showed invasion of spindle shaped cells involving subcutaneous layer interlacing with conspicious collagenous fiborus stroma without malignant features. After 3 months, two nodules reappeared near the operation sites and the following biopsy results showed the same as before. We decided to observe the remaining lesions and there had been no significant changes for 5 months. Multiple lesional occurrence is as quite uncommon feature of NF as the recurrence after surgical treatment. Herein, we report a rare case of multiple recurrence of NF after surgical extirpation, which presented with in-transit metastasis of sarcoma-like feature.
Yang, Hoe-Chang,Cho, Hee-Young,Lee, Won-Dong Korea Distribution Science Association 2015 Asian Journal of Business Environment (AJBE) Vol.5 No.4
Purpose - Based on previous studies, this study extends current research and investigates whether the sub-factors of emotional intelligence increase job satisfaction or employee intrinsic and extrinsic motivation and perceived organizational support. Research design, data, and methodology - This study categorizes service employees' (consultants) emotional intelligence into four sub-factors: regulation of emotion, appraisal of emotion, utilization of emotion, and expression of emotion. The study then investigates the sub-factor effects on job satisfaction. A total of 353 valid questionnaires were collected. Results - The results of the path analysis showed that appraisal, utilization, and expression of emotion had a positive effect on intrinsic motivation, and utilization of emotion had a positive effect on extrinsic motivation. Extrinsic motivation had a positive effect on perceived organizational support and job satisfaction, and perceived organizational support had a positive effect on job satisfaction. Conclusion - As consultants' utilization of emotion is rendered as the ability to use emotion to improve performance, the conclusion is that such factors as monetary performance incentives are important in order to boost job satisfaction of the consultants.
Prognosis according to the timing of recurrence in breast cancer
Young Joo Lee*,Seung Pil Jung*,Jeoung Won Bae,Sun Moon Yang,Ji Young You,Soo Youn Bae 대한외과학회 2023 Annals of Surgical Treatment and Research(ASRT) Vol.104 No.1
Purpose: Clinically, breast cancer can be divided into 4 subtypes based on the presence of hormone receptors, human epidermal growth factor receptor 2 (HER2), and Ki-67. Because the pattern and time of recurrence vary according to the subtype, we evaluated whether there was a difference in overall survival (OS) among the subtypes according to the time and type of recurrence. Methods: A total of 2,730 patients who underwent breast cancer surgery were analyzed. Early and late recurrence were defined as recurrence within and after 5 years of diagnosis, respectively. Recurrence type was categorized as locoregional recurrence or systemic recurrence. Results: Hormone receptor-positive tumors were significantly more frequent in the late recurrence group than in the early recurrence group (estrogen receptor positive, 47.8% [early] vs. 78.7% [late]). However, there was no difference in the rate of HER2 overexpression (HER2+, 38.1% [early] vs.39.0% [late]). In subgroup analysis, early recurrence was a significant prognostic factor for OS in all subtypes. However, late recurrence was a significant prognostic factor for OS only in the luminal B subtype (hazard ratio of 4.30). In addition, the luminal B type had the highest proportion in late recurrence patients (63.2%). Conclusion: The luminal B subtype had a high rate of late recurrence, and late recurrence was a poor prognostic factor for OS only in this subgroup. Therefore, further targeted treatments for luminal B breast cancer are needed and patients with this subtype require close long-term surveillance.
Young Sup Woo,Won-Myong Bahk,Jeong Seok Seo,Young-Min Park,Won Kim,Jong-Hyun Jeong,Se-Hoon Shim,Jung Goo Lee,Seung-Ho Jang,Chan-Mo Yang,Sheng-Min Wang,Myung Hun Jung,Hyung Mo Sung,Il Han Choo,Bo-Hyun 대한정신약물학회 2022 CLINICAL PSYCHOPHARMACOLOGY AND NEUROSCIENCE Vol.20 No.1
The Korean Medication Algorithm Project for Depressive Disorder (KMAP-DD) first was published in 2002, and has been revised four times, in 2006, 2012, 2017, and 2021. In this review, we compared recommendations from the recently revised KMAP-DD 2021 to four global clinical practice guidelines (CPGs) for depression published after 2010. The recommendations from the KMAP-DD 2021 were similar to those from other CPGs, although there were some differences. The KMAP-DD 2021 reflected social culture and the healthcare system in Korea and recent evidence about pharmacotherapy for depression, as did other recently published evidence-based guidelines. Despite some intrinsic limitations as an expert consensus-based guideline, the KMAP-DD 2021 can be helpful for Korean psychiatrists making decisions in clinical settings by complementing previously published evidence-based guidelines, especially for some clinical situations lacking evidence from rigorously designed clinical trials.