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Liquid‐Crystalline Blue Phase Laser with Widely Tunable Wavelength (Adv. Mater. 21/2013)
Hur, Sung‐,Taek,Lee, Bo Ram,Gim, Min‐,Jun,Park, Kyung‐,Won,Song, Myoung Hoon,Choi, Suk‐,Won WILEY‐VCH Verlag 2013 ADVANCED MATERIALS Vol.25 No.21
<P>A liquid‐crystalline blue‐phase laser with a tunable photonic bandgap (PBG) of over 150 nm and a wide temperature range is demonstrated by Myoung Hoon Song and Suk‐Won Choi on p. 3002. A lasing peak shift of more than 100 nm is realized due to the large PBG shift of the liquid‐crystalline blue phase. The shift in the lasing wavelength was reversible during repeated temperature changes over the entire stability range of the liquid‐crystalline cubic blue phase. </P>
( Hee Yeon Kim ),( Jong Young Choi ),( Dong Goo Kim ),( Myoung Soo Kim ),( Soon Il Kim ),( Shin Hwang ),( Sung Gyu Lee ),( Kwang Woong Lee ),( Kyung Suk Suh ),( Young Seok Han ),( Dong Lak Choi ),( Se 대한간학회 2012 춘·추계 학술대회 (KASL) Vol.2012 No.-
Background: The outcome of hepatitis B virus (HBV) infection after liver transplantation (LT) was improved by hepatitis B immunoglobulin (HBIG) and nucles(t)ide analogue (NUA). However, HBV recurrence after LT is critical because the recurrence is occasionally accompanied by a progressive destruction of graft and poor survival. The aims of this study were to investigate the significance HBV recurrence and identity factors associated with HBV recurrence. Methods: From October 1999 to February 2011, a total of 2684 consecutive LT recipients who underwent HBV-associated LT were retrospectively enrolled from 7 transplantation centers in Korea. Results: Prophylaxis regimens were HBIG monotherapy (67.7%) or a combination of HBIG with NUA (22.3%). The recurrence rate of HBV was 6.1% (164 recipients) during mean follow-up duration of 10.9 years. The median time from transplantation to recurrence was 2.1 years (0.1-7.9 years). Of the 1,071 patients with hepatocellular carcinoma (HCC) prior to LT, 155 patients (14.5%) had HCC recurrence after transplantation, and 48 patients (31.0%) had HBV recurrence. Of the 48 patients with recurrence of both HBV and HCC, 25 patients (52.1%) experienced HBV recurrence after HCC recurrence. In the multivariate analysis, pretransplant HCC, pretransplant HBV DNA above 5.5 log copies/mL was independent clinical factors influencing HBV recurrence after LT. The mortality rate among the recipients with HBV recurrence was 34.1% (56 recipients). Mean overall survival was 6.4 years in the HBV-recurrence group and 9.9 years in the HBV-nonrecurrence group (p<0.001). HBV recurrence was not an independent prognostic factor for overall survival. HCC recurrence was the most important factor for overall survival. Conclusions: The overall outcome of LT in HBV-related liver disease was excellent with the current prophylaxis regimen Choon Hyuck David Kwon,8 Suk-Koo Lee8 Pretransplant HBV DNA and HCC were important factors for HBV recurrence. HBV recurrence after LT did not significantly influence on the overall survival without combining of HCC recurrence.
주용진,최성문,최영자,성호석 ( Yoing Jin Joo,Sung Moon Choi,Young Ja Choi,Ho Suk Sung ) 대한피부과학회 1990 대한피부과학회지 Vol.28 No.5
A Case of Ehlers-Danlos syndrome Yoing Jin Joo, M.D., Sung Moon Choi, M.D., Young Ja Choi*, M.D., Ho Suk Sung, M.D. Department of Dermatology, Clooego of Medicine, Inje University, Pusan, Korea We presented a case of Ehlers-Danlos syndrome in a 25-year old female, who had hyperextensibility of skin, skin fragility, cigarette paper-like atrophic scar, joint hyperextensibility and skeletal abnormality of scoliosis since birth. There was no family history. Microscopic and electron microscopic examinations of the skin biopsy specimens from normal appearing skin on the forearm and the site of subcutaneous nodule was compatible with finding of Ehlers-Danlos syndrome. Although the manifestations of this case including marked extensibility of skin, joint, skin fraility and atrophic scar might be in accord with type Ⅰ(gravis) Ehlers-Danlos syndrome, skeletal abnormality of scoliosis did not correspond to this type, but to type Ⅳ(hydroxylysine deficient) Ehlers-Danlos syndrome. We consider this case as a type Ⅳ Ehlers-Danlos syndrome.
실용음악 전공 학생들의 발성치료 전후 성대 및 음성 특성 비교
황연신,심미란,김철준,최용석,김상연,최찬호,선동일,Hwang, Yeon Shin,Shim, Mi Ran,Kim, Chul Jun,Choi, Yong Suk,Kim, Sang Yeon,Choi, Chan Ho,Sun, Dong Il 대한후두음성언어의학회 2016 대한후두음성언어의학회지 Vol.27 No.2
Background and Objectives : Many students major in applied music singing have various difficulties in phonation when they sing or perform. But the studies about this cause are lack. The purpose of this study is whether singing voice therapy based on vocal music is effective or not to applied music singing students that have difficulties in phonation. Materials and Methods : Singing voice therapy program had been done to 8 students major in applied music singing during 7 weeks. We did laryngeal stroboscope, perceptual, acoustic and aerodynamic examination before and after singing voice therapy to this students. And we studied post examination results have differences or improvements compared to pre examination results. Results : Four male students don't have effective improvement after singing voice therapy but they shows slight improvement in aerodynamic examination values compared to pre examination values. Four female students shows improvement in aerodynamic examination values and pitch range increasing. Above all, one student's vocal nodules disappeared after singing voice therapy. Conclusion : Singing voice therapy based on music singing is very effective to the students major in applied music singing. Above all, their curriculum in applied music singing should include phonation training based on music singing before training perform and technic practices.
The clinical impacts of fibromyalgia school program for fibromyalgia patients
( Sung Min Boo ),( Hyun Suk Lee ),( Jong Kyu Kim ),( He Woo Lee ),( Byoong Yong Choi ) 대한내과학회 2015 대한내과학회 추계학술발표논문집 Vol.2015 No.1
Background & Objective: Fibromyalgia (FM), a chronic complex clinical syndrome characterized by widespread musculoskeletal pain and various somatic symptoms, has a considerable negative impact on the quality of life of FM patients. Although a multidisciplinary approach is needed to alleviate pain in these patients, there is little information available on the multidisciplinary approach in real clinical settings. We aimed to evaluate the treatment efficacy of FM school program as outpatient, multidisciplinary treatment for FM and examined whether the efficacy would be sustained for 6 months following the treatment. Methods: We conducted a prospective clinical trial in 45 FM patients; 15 patients (program group) completed the 12-week FM school program and 30 FM patients (non-program group) were matched for age and gender. The FM school program consisting of coping skills for illness and education of core strength exercises were a total of six sessions, every other week. The outcome variables were 100 mm visual analog scales (VAS) for musculoskeletal pain and morning fatigue, Fibromyalgia Impact Questionnaire (FIQ) score, the Hamilton depression (HAM-D) scale, and Short Form 36 health survey (SF-36). All were measured at baseline, and 4 weeks and 6 months after the end of the program. Results: At the end of program, VAS of pain and fatigue in the program-group were significantly improved (-33.1±6.9 and -32.6±7.1, both p 0.0001) and lower than those of non-program group (p=0.0015 and p=0.0001). FIQ score and HAM-D scale in program-group were more improved compared with those of non-program group (mean ΔFIQ -27.9 vs. -5.5, p=0.0001 and mean ΔHAM-D -12.4 vs -4.6, p=0.0012). The improvement of SF 36 in program-group was higher than those of non-program groups (p<0.0001). After 6 months, the improvements of pain/fatigue and depression in the program-group were sustained compared with those of non-program group. Conclusions: The results of this study suggest that FM school program as multidisciplinary approach improves global well-being and the quality of life in FM patients. Keywords: Fibromyalgia; Outpatient Care; Life quality
Sung-Jin Kim,Daun Jeong,SeongMin Kim,Yeong Suk Choi,Soo-Ghang Ihn,Sungyoung Yun,Younhee Lim,Eunha Lee,박경수 한국물리학회 2016 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.68 No.3
Although the morphology of the active layer in bulk heterojunction organic photovoltaic (BHJOPV) cells is critical for determining the quantum efficiency (QE), predicting the real QE for a 3-dimensional (3D) morphology has long been difficult because structural information on the composition complexity of donor (D) : acceptor (A) blends with small domain size is limited to 2D observations via various image-processing techniques. To overcome this, we reconstruct the 3D morphology by using an isotropic statistical approach based on 2D energy-filtered transmission electron microscopy (EF-TEM) images. This new reconstruction method is validated to obtain the internal QE by using a dynamic Monte Carlo simulation in the BHJ-OPV system with different additives such as 4 vol% 1-chloronaphthalene (CN) and 4 vol% 1,8-diiodooctane (DIO) (compared to the case of no additive); the resulting trend is compared with the experimental QE. Therefore, our developed method can be used to predict the real charge transport performance in the OPV system accurately.
Choi, Ho-Suk,Shin, Won-Seob,Shim, Jae-Kwang,Choi, Sung-Jin,Bang, Dae-Hyouk The Korean Society of Physical Therapy 2014 대한물리치료학회지 Vol.26 No.6
Purpose: The purpose of this study was to investigate the correlations between functional movement screen (FMS) and ankle dysfunctions in subjects with chronic ankle instability (CAI). Methods: This study was a cross-sectional study of 20 participants with CAI. The ankle dorsiflexion range of motion (ROM), Foot and Ankle Disability Index (FADI), center of pressure (COP) path length, and COP velocity for ankle dysfunction were measured in all the subjects. All the subjects underwent the FMS concerned with ankle functions consisted of deep squats, hurdle steps and in-line lunges. The Spearman rank-order correlation coefficient was used to determine relationship between the ankle ROM, FADI, COP and FMS. Results: The results of the deep squat and in-line lunge exercises revealed a significant correlation with the ankle dorsiflexion ROM, FADI, COP path length, and COP velocity. The hurdle step showed no correlation with the ankle dorsiflexion ROM and FADI but a significant relationship with the COP path length and COP velocity. Conclusion: The results of this study showed that relationship deep squat and in-line lunge and it is suggested that an assessment tool using ankle dorsiflexion ROM and ankle instability would be clinically effective.