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Efficacy of Seprafilm~ graft with adhesiolysis in experimentally induced lid adhesion in rabbits

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International Journal of Ophthalmology(English edition) 2013年第1期6卷 44-49页

作者： Sang Wook Jin Hee Bae Ahn Mi Sook Roh Yoon Hyung Kwon won yeol ryu Department of Ophthalmology College of MedicineDong-A University Department of Pathology College of MedicineDong-A University

AIM:To evaluate the efficacy of Seprafilm transplantation following adhesiolysis for preventing postoperative readhesion and improving surgical outcomes. METHODS:Primary blepharoplasty was carried out on both eyelids of 18 albino rabbits. After 2 weeks, a new skin incision was made, and adhesiolysis was performed on both eyelids. The rabbits were categorized into two groups, one with adhesiolysis alone in the left eyelid (control group), and the other with adhesiolysis with a Seprafilm graft in the right eyelid (Seprafilm group). The degrees of inflammation and fibrosis were examined with hematoxylin-eosin (HE) and Masson’s trichrome stains. Expression of α-smooth muscle actin (α-SMA) was also immunohistochemically examined. RESULTS:Eyelid examination immediately after the operation revealed mild swelling and hemorrhage in both groups, but these symptoms resolved after 1 week-2 weeks, and eyelid shape had recovered completely in both groups. Microscopic assessments demonstrated that the Seprafilm group showed less inflammation and fibrosis than the control group. The Seprafilm group also exhibited fewer α-SMA-positive cells than the control group. CONCLUSION:Based on these findings, we conclude that Seprafilm graft with adhesiolysis is an effective method for preventing postoperative readhesions after eyelid surgery.

关键词： Seprafilm adhesion adhesiolysis

Effects of upper lid blepharoplasty on visual quality in patients with lash ptosis and dermatochalasis

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International Journal of Ophthalmology(English edition) 2016年第9期9卷 1320-1324页

作者： Scoung Hyun An Sang Wook Jin Yoon Hyung Kwon won yeol ryu Woo Jin Jeong Hee Bae Ahn Department of Ophthalmology Dong-A University College of Medicine Busan 602-715 Korea

AIM：To assess the effects of upper lid blepharoplasty on visual ***：Seventy-three eyelids of 39 patients were subjected to upper lid ***- and postoperative contrast sensitivity,visual acuity,vertical palpebral aperture and the degree of lash ptosis were ***：The mean log contrast sensitivities under photopic（P =0.017） and scotopic conditions（P =0.009）were improved after surgery,and these differences were *** degree of lash ptosis was also decreased after blepharoplasty（P〈0.001）.CONCLUSION：In our study,a significant increase in contrast sensitivity was found after *** results suggest that upper lid blepharoplasty can be helpful for improving visual quality.

关键词： blepharoplasty visual quality contrast sensitivity

Microscopic characteristics of the inferior tarsal muscle and its surroundings in Korean

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International Journal of Ophthalmology(English edition) 2013年第2期6卷 126-130页

作者： Jung Min Park Mee Sook Roh Moo Hyun Kim Woo Jin Jeung won yeol ryu Yoon Hyung Kwon Hee Bae Ahn Department of Ophthalmology Maryknoll Hospital Department of Pathology College of Medicine Dong-A University Department of Cardiology College of Medicine Dong-A University Department of Ophthalmology College of Medicine Dong-A University

AIM: To investigate the detailed microscopic anatomic structures of the lower eyelid in Korean cadavers. METHODS: Eight lower eyelids of 4 formalin-fixed Asian cadavers (4 males; age range, 48-69 years; mean age, 60.2 years) were examined. Three perpendicular dissected sections with a 2mm thickness were obtained from each eyelid to investigate anatomic shapes, size and relationship with surrounding structures. One section was obtained from the midline and 2 the other sections were obtained from a 3mm apart from the lateral and medial tarsus margins. RESULTS: The inferior tarsal muscle fibers were not directly attached to the tarsus but were only linked to the tarsus with enclosed fibrous fascia. The inferior tarsal muscles connected loosely with the capsulopalpebral fascia anteriorly and the conjunctiva posteriorly. The inferior tarsal muscle runs horizontally to the tarsus according to the shape of muscle fibers. The capsulopalpebral fascia consisted of an anterior and posterior layer. The anterior layer reached the orbital septum and subcutaneous fat but the posterior layer forwarded into the tarsus. Lockwood’s ligament was separated from the inferior tarsal muscle and capsulopalpebral fascia or fused into the capsulopalpebral ***: This study suggests that the inferior tarsal muscle which runs horizontally and doesn’t insert directly into the tarsus, plays an important role in the movement and localization of the lower eyelid.

关键词： capsulopalpebral fascia inferior tarsal muscle lower eyelid

The effects of Y pre-alloying on the in-situ dispersoids of ODS Co Cr Fe Mn Ni high-entropy alloy

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Journal of Materials Science & Technology 2021年第26期85卷 62-75页

作者： SeungHyeok Chung Bin Lee Soo yeol Lee Changwoo Do Ho Jin ryu Department of Nuclear and Quantum Engineering Korea Advanced Institute of Science and TechnologyDaejeon 34141Republic of Korea Manufacturing Technology Office Korea Institute for Rare MetalKorea Institue of Industrial TechnologyGet-Pearl TowerGaetbeol-ro 12Yeonsu-guIncheon 21999Republic of Korea Department of Materials Science and Engineering Chungnam National UniversityDaejeon 34134Republic of Korea Neutron Scattering Division Oak Ridge National LaboratoryOak RidgeTN 37831USA

Oxide dispersion strengthened CoCrFeMnNi high-entropy alloys(ODS-HEAs)were prepared using two different powder preparation methods classified by yttrium addition strategy to investigate the effects of in-situ and ex-situ oxide dispersoid formation on the microstructure and mechanical *** micro structural analysis was carried out by X-ray diffraction(XRD),electron backscattered diffraction(EBSD),high-resolution transmission electron microscopy(HRTEM),atom probe tomography(APT),and small-angle neutron scattering(SANS).Cryo-milled powder analysis,grain structure evolution after spark plasma sintering,dispersoid characteristics,and matrix/dispersoid interface structure analysis of the insitu and ex-situ dispersoids within the high-entropy alloy(HEA)matrix were *** in-situ dispersoid formation was dominantly observed in the Y-alloyed ODS-HEA through the construction of a coherent interface relationship with complex chemical composition,leading to an increase in the Zener pinning forces on the grain boundary ***-HEA with in-situ oxide dispersoids enhanced the formation of ultrafine-grained structures with an average diameter of 330 nm at a sintering temperature of 1173 *** study shows that the Y pre-alloying method is efficient in achieving fine coherent dispersoids with an ultra fine-grained structure,resulting in an enhancement of the tensile strength of the CoCrFeMnNi HEA.

关键词： Oxide dispersion strengthened(ODS)alloy High-entropy alloy In-situ oxide dispersoid formation Microstructure Mechanical property

Clinical significance of MET gene amplification in metastatic or locally advanced gastric cancer treated with first-line fluoropyrimidine and platinum combination chemotherapy

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Chinese Journal of Cancer Research 2019年第4期31卷 620-631页

作者： Seyoung Seo Min-Hee ryu Baek-yeol Ryoo Yangsoon Park Young Soo Park Young-Soon Na Chae-won Lee Ju-Kyung Lee Yoon-Koo Kang Departments of Oncology Asan Medical CenterUniversity of Ulsan College of MedicineSeoul 05505Republic of Korea Department of Pathology Asan Medical CenterUniversity of Ulsan College of MedicineSeoul 05505Republic of Korea Asan Institute for Life Science Asan Medical CenterUniversity of Ulsan College of MedicineSeoul 05505Republic of Korea

Objective: To investigate the clinical significance of MET gene amplification in patients with gastric cancer in the palliative ***: MET amplification was assessed using fluorescence in situ hybridization(FISH) in 50 patients and quantitative polymerase chain reaction(qPCR) in 326 patients;259 patients treated with first-line fluoropyrimidine and platinum were included for survival ***: The results of FISH and qPCR indicated that the c-MET/CEP7 ratio was correlated with gene copy number. The optimal cutoff value for the copy number using qPCR to detect MET gene amplification with FISH was 5(κ=0.778, P5 detected by qPCR. MET-amplified gastric cancer was associated with an Eastern Cooperative Oncology Group(ECOG) performance status(PS) score of ≥2(33.3% vs. 10.5% P=0.007), peritoneal metastasis(76.2% vs. 46.2%, P=0.008), and elevated bilirubin levels(28.6% vs. 7.3%, P=0.006). The median overall survival(OS) and progression-free survival(PFS) were 11.9 and 5.6 months, respectively. MET-amplified gastric cancer was not associated with survival outcomes [hazard ratio(HR)=0.68, 95% confidence interval(95% CI): 0.35-1.32,P=0.254 for PFS;HR=0.68, 95% CI: 0.35-1.32, P=0.251 for OS].Conclusions: qPCR can be used to detect MET gene amplification. MET amplification was not a predictor of poor prognosis in patients with metastatic or unresectable gastric cancer.

关键词： MET amplification advanced gastric cancer prognosis quantitative real-time polymerase chain reaction

Asymmetric optical camouflage:tuneable reflective colour accompanied by the optical Janus effect

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Light(Science & Applications) 2020年第1期9卷 325-334页

作者： Taehyun Kim Eui-Sang Yu Young-Gyu Bae Jongsu Lee In Soo Kim Seok Chung Seung-yeol Lee Yong-Sang ryu Sensor System Research Center Korea Institute of Science and TechnologySeoul 02792Republic of Korea Department of Micro/Nano Systems Korea UniversitySeoul 02841Republic of Korea School of Electronic and Electrical Engineering Kyungpook National UniversityDaegu 41566Republic of Korea Nanophotonics Research Center Korea Institute of Science and TechnologySeoul 02792Republic of Korea School of Mechanical Engineering Korea UniversitySeoul 02841Republic of Korea

Going beyond an improved colour gamut,an asymmetric colour contrast,which depends on the viewing direction,and its ability to readily deliver information could create opportunities for a wide range of applications,such as nextgeneration optical switches,colour displays,and security features in anti-counterfeiting ***,we propose a simple Fabry–Perot etalon architecture capable of generating viewing-direction-sensitive colour contrasts and encrypting pre-inscribed information upon immersion in particular solvents(optical camouflage).Based on the experimental verification of the theoretical modelling,we have discovered a completely new and exotic optical phenomenon involving a tuneable colour switch for viewing-direction-dependent information delivery,which we define as asymmetric optical camouflage.

关键词： asymmetric generating readily

Incidence of venous thromboembolism and the role of D-dimer as predictive marker in patients with advanced gastric cancer receiving chemotherapy:A prospective study

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World Journal of Gastrointestinal Oncology 2017年第4期9卷 176-183页

作者： Kwonoh Park Baek-yeol Ryoo Min-Hee ryu Sook ryun Park Myoung Joo Kang Jeong Hye Kim Seungbong Han Yoon-Koo Kang Medical Oncology and Hematology Department of Internal medicinePusan National University Yangsan Hos-pital Department of Oncology Asan Medical CenterUniversity of Ulsan College of Medicine Department of Clinical Epidemiology and Biostatics Asan Medical CenterUniversity of Ulsan College of Medicine

To investigated the incidence and risk factors of venous thromboembolism (VTE) in patients with advanced gastric cancer (AGC) receiving chemotherapy. METHODSAll consecutive chemotherapy-naïve patients with AGC who would receive palliative chemotherapy between November 2009 and April 2012 in our hospital were recruited. Their pretreatment clinical and laboratory variables, including D-dimer, were recorded. The frequency of VTE development and survival rates during each chemotherapy cycle and regularly thereafter were assessed. RESULTSA total of 241 patients enrolled between November 2009 and April 2012 were analyzed. During a median follow-up duration of 10.8 mo (95%CI: 9.9-11.7), 27 patients developed VTE and the incidence of VTE was 17.5% (95%CI: 10.5-24.0, 12.0 events/100 person-years). The 6-mo and 1-year cumulative incidences were 7.8% (95%CI: 4.2%-11.4%) and 12.4% (95%CI: 7.3-17.2), respectively. Thirteen (48.1%) patients were symptomatic and the other 14 (51.9%) patients were asymptomatic. In multivariate analysis, pretreatment D-dimer level was the only marginally significant risk factor associated with VTE development (hazard ratio = 1.32; 95%CI: 1.00-1.75, P = 0.051). CONCLUSIONThe incidence of VTE is relatively high in patients with AGC receiving chemotherapy, and pretreatment D-dimer level might be a biomarker for risk stratification of VTE.

关键词： Advanced gastric cancer D-dimer Venous thromboembolism

The Heart Disorders with Survey Study in Oriental Medicine: Using the Magnetocardiography (MCG)

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The Heart Disorders with Survey Study in Oriental Medicine: ...

用Al或Mo /Al /Mo低阻材料改善4-Mask工艺中Al腐蚀的方法(英文)

第三届国际传统医药大会

作者： Sun Mi Choi Yeon Hee ryu Jin Suk Moon Joung yeol Kim Kyung Mo Park Young Huh Chan Gil Jeung Hyun Jea Sung Yoo sik Yoon Kyoo Seok Ahn Medical Research & Development Team Korea Institute of Oriental Medicine Department of biomedical Engineering Kyunghee University Korea Electrotechnology Research Institute College of Oriental Medicine Semyung University Kyunghee University Oriental Medical College Pathology Laboratory

Objective:This study was to determine the standard of criteria for each different diagnosis of signs and symptoms. Methods: Eleven experts were asked to evaluate the adequateness of criteria that was developed by Korea Institute of Oriental Medicine (KIOM) and suggested the amendment of them. To perform the study, we used the questionnaire which asks about the diagnosis criteria for an insufficiency of the heart-qi (心气虚证), deficiency of the heart blood (心血虚证), deficiency of the heart-yin (心阴虚证), insuffi-

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液晶与显示 2006年第5期21卷 501-505页

作者：劉聖烈崔螢石金奉柱柳在一李禹奉李貞烈京东方科技集团股份有限公司中央研究院

为了减少制造工艺的过程,改进的4-Mask工艺中采用Al基的数据线已得到进一步的完善。但这个工艺仍存在很多问题,主要是为减少工艺过程,而引入干法刻蚀对Al有腐蚀作用。本文应用CF4/O2等离子体处理,很好地阻止了对Al的腐蚀,得到很好的效果... 详细信息

为了减少制造工艺的过程,改进的4-Mask工艺中采用Al基的数据线已得到进一步的完善。但这个工艺仍存在很多问题,主要是为减少工艺过程,而引入干法刻蚀对Al有腐蚀作用。本文应用CF4/O2等离子体处理,很好地阻止了对Al的腐蚀,得到很好的效果,对改进后4-Mask工艺的进一步应用具有非常重要的意义。

关键词：液晶显示器腐蚀 Al,Mo/Al/Mo 等离子体处理