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Corticosteroid-associated atypical central serous chorioretinopathy in a patient with multiple sclerosis

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International Journal of Ophthalmology(English edition) 2017年第5期10卷 819-821页

作者： mahmut kaya Derya kaya Egemen Idiman Department of Ophthalmology DokuzEylul University School of Medicine Izmir 35340 Turkey Geriatrics Medicine DokuzEylul University School of Medicine Izmir 35340 Turkey Department of Neurology DokuzEylul University School of Medicine Izmir 35340 Turkey

Dear Editor,Multiple sclerosis（MS）is a chronic inflammatory,autoimmune,demyelinating disease of the central nervous system（CNS）^（[1]）.Neuro-ophthalmologic manifestations are one of the most common features occur... 详细信息

关键词： MS CSC oral Figure

Long-term success of ahmed glaucoma valve in refractory glaucoma

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International Journal of Ophthalmology(English edition) 2012年第1期5卷 108-112页

作者： mahmut kaya Zeynep Ozbek Aylin Yaman Ismet Durak Department of Ophthalmology Dokuz Eylul UniversityIzmirTurkey

AIM:To evaluate the long-term results and complications of ahmed glaucoma valve (AGV) implantation in refractory glaucoma.· METHODS:A retrospective review of 13 patients (13 eyes) with refractory glaucoma who underwent AGV implantation and had a minimum follow-up of 18 months was *** patients underwent a complete ophthalmologic examination and intraocular pressure (IOP) measurement before surgery and at 1 month,3 months,6 months,1 year after surgery and yearly *** and the number of antiglaucoma medications needed were recorded.· RESULTS:Mean age was 27.3±16.0 *** eyes (100%) had at least one prior incisional *** follow-up was 61.3±30.8 *** was reduced from a mean of 35.0±7.0mmHg to 18.2±7.9mmHg at 12 months and to 17.0±4.1mmHg at 96 months (P <0.05) with a lower number of medications from baseline,76.9% patients required additional procedures to achieve the success criteria set by previously published *** most common complications were encapculated cyst formation in eight eyes (61.5%) and tube exposure in four eyes (30.8%).· CONCLUSION:Encapsulated cyst formation was the most common complication which hindered succesful IOP control after AGV implant insertion for refractory *** cyst excision with anti-fibrotic agents,successful IOP reduction was not achieved in 76.9% of the patients without antiglaucoma medication.

关键词： Ahmed glaucoma valve encapsulated cyst intraocular pressure refractory glaucoma

Ahmed青光眼阀治疗难治性青光眼的长期疗效(英文)

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国际眼科杂志 2012年第7期12卷 1221-1225页

作者： mahmut kaya Zeynep Ozbek Aylin Yaman Ismet Durak Dokuz Eylul大学眼科

评估Ahmed青光眼阀(Ahmed glaucoma valve,AGV)植入治疗难治性青光眼的长期疗效及并发症。方法:回顾性分析13例13眼接受Ahmed青光眼阀植入,最短随访18mo的难治性青光眼患者。所有患者均在术前及术后1,3,6mo,1a及1a以后行全面的眼科检查... 详细信息

评估Ahmed青光眼阀(Ahmed glaucoma valve,AGV)植入治疗难治性青光眼的长期疗效及并发症。方法:回顾性分析13例13眼接受Ahmed青光眼阀植入,最短随访18mo的难治性青光眼患者。所有患者均在术前及术后1,3,6mo,1a及1a以后行全面的眼科检查,眼压测量,记录并发症及抗青光眼的药物需求。结果:患者平均年龄27.3±16.0岁。所有患眼(100%)接受至少一次前置小切口手术。平均随访61.3±30.8mo。在少量药物的作用下,12mo时眼压由35.0±7.0mmHg降至18.2±7.9mmHg,96mo时降至17.0±4.1mmHg,76.9%患者需其他辅助治疗以达到预期的成功疗效。最常见的并发症包括包裹性囊肿8眼(61.5%),置管脱出4眼(30.8%)。结论:包裹性囊肿是最常见的并发症,阻碍了Ahmed青光眼阀植入治疗难治性青光眼。虽然囊肿被抗纤维化药物切除,但没有抗青光眼药物的治疗,眼压仍旧不能很好控制。

关键词： Ahmed青光眼阀包裹性囊肿眼压难治性青光眼

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双眼眼部缺损合并非综合征性唇腭裂(英文)

国际眼科杂志 2009年第7期9卷 1243-1244页

作者： Pinar Saatci A ylin Yaman mahmut kaya Handan Cakmakci Salih Kavukeu Ali osman Saatci 大官邸卫生部口腔医院土耳其伊兹密尔 Dokuz Eylul大学眼科教研室 Dokuz Eylul大学放射科教研室 Dokuz Eylul大学儿科教研室

患儿,男,2mo,非综合征性唇腭裂。检查发现患者下方虹膜缺损,玻璃体盖膜,视乳头和脉络膜缺损。核磁共振(MRI)检查显示双侧缺损性小眼球,眼球后囊肿,视神经细。每位唇腭裂患儿需经眼科医师检查以排除可能合并的眼部畸形。

关键词：唇腭裂缺损性小眼球球后囊肿

Single incision laparoscopic surgery for hepatocellular carcinoma

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World Journal of Gastrointestinal Surgery 2024年第10期16卷 3078-3083页

作者： Ilhan Karabicak Kadir Yildirim mahmut Fikret Gursel Zafer Malazgirt Department of General Surgery Samsun VM Medicalpark HospitalSamsun 55200Türkiye

Single incision laparoscopic liver resection(SILLR)is the most recent develop-ment in the laparoscopic approach to the *** for hepatocellular carci-noma(HCC)has developed much more slowly than multiport *** far,195 patients completed SILLR for *** this paper,we reviewed all published papers about SILLR for HCC and discussed the feasibility of the SILLR,peri and postoperative findings,tricks of patient selection and whether SILLR compromise the oncological principles.

关键词： Single incision Laparoscopic liver surgery Liver resection Hepatocellular carcinoma Multiport laparoscopic liver resection

The Impact of Black Sea Sand Treatment Effectively Reducing Different Type of Pain

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Open Journal of Therapy and Rehabilitation 2024年第1期12卷 18-27页

作者： mahmut Tokaç Abdulbari Bener Fatma Nur Kesiktaş Bahar Dernek Semra Alkal Akkaya Zeynep Esra Akgün Department of Medicine and Education Unit School of Medicine Istanbul Medipol University Istanbul Türkiye Department of Biostatistics & Medical Informatics School of Medicine Istanbul Medipol University Istanbul Türkiye Department of Evidence for Population Health Unit School of Epidemiology and Health Sciences The University of Manchester Manchester UK Faculty of Medicine Health Sciences University Istanbul Physiotherapy Rehabilitation Training and Research Hospital Istanbul Türkiye Faculty of Medicine Health Sciences University Department of Physical Medicine and Rehabilitation Umraniye Training and Research Hospital Istanbul Türkiye Physical Medicine and Rehabilitation Vatan Clinics School of Medicine Istanbul Medipol University Istanbul Türkiye

Purpose: Low back pain (LBP), Gonarthrosis, knee, and Carpal Tunnel Syndrome have been regarded as affecting more than three-quarters’ of individuals in their lifetime. The aim of this study was conducted to determine and compare the effects of topical patients with sand compared with control related to Gonarthrosis, LBP, knee, and Carpal Tunnel Syndrome pain. Methods: This is a prospective case and control designed study based on 101 pain case with Sand and 101 control subjects. The interventional groups in addition either topical sand or without sand 2 months after the intervention were assessed. We assessed tolerability of an established pain perception scale by the Numeric Rating Scale (NRS). Categorical variables were compared using the chi-square (χ2) test. The paired t-test was used to compare the two groups before and after the intervention. One-way analysis of variance (ANOVA) was employed for comparison of several group means. Results: The study was based on 202 patients, 41 males (20.3%) and 161 females (79.7%). There were statistically significant differences between subjects with and without Sand in term of Gonarthrosis, Rheumatoid Arthritis LBP, knee, and Carpal Tunnel Syndrome pain (p = 0.033). Majority of patients were over age 55 years old (55%) and females 78 (77.2%). The mean score of total pain experience before and after the intervention was 7.41 ± 1.1 for black sand, and 4.24 ± 2.38 for without sand as control group. The mean scores of these 5 groups were highly significant before and after the intervention (p There was statistically highly significant in regarding subjects with Sand as compared with those before Sand after treatment mean score specifically with gonarthrosis before pain 7.23 ± 1.86 vs after treatment 4.54 ± 2.18 p < 0.001;rheumatoid arthritis before 8.28 ± 1.48 vs after treatment 4.80 ± 3.71 p < 0.001;Low Back Pain before 8.42 ± 1.83 vs after treatment 4.37 ± 1.52 p < 0.001;knee pain before 8.93 ± 0.89 vs after treat

关键词： Therapies Sand LBP Musculoskeletal Rheumatoid Arthritis Carpal Tunnel Syndrome

Correlating common breakage modes with impact breakage and ball milling of cement clinker and chromite

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International Journal of Mining Science and Technology 2020年第6期30卷 901-908页

作者： mahmut Camalan Mining Engineering Department Middle East Technical UniversityAnkara 06800Turkey

Understanding the mechanisms of the breakage of ore particles is important to predict the particle size distribution in size reduction *** paper aims to show the presence of common breakage modes in impact breakage and ball milling of the cement clinker and chromite *** that purpose,narrow size fractions of the two samples were broken in a drop-weight tester or ball mill by changing the degree of applied *** the resultant size distributions were evaluated to seek evidence for the common breakage *** results showed that increasing the breakage energy will produce a systematic change in the shapes of the size distributions,suggesting a sequential set of breakage *** breakage is initially due to tensile stresses at low breakage energies and compressive stresses at high breakage *** studies should be done to assess if these breakage modes occur at sizereduction of different ores.

关键词： Progeny distribution Impact breakage Ball mill Self-similarity Breakage modes Cone of fines

Prediction of Excess Air Factor in Automatic Feed Coal Burners by Processing of Flame Images

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Chinese Journal of Mechanical Engineering 2017年第3期30卷 722-731页

作者： Muhammed Fatih TALU Cem ONAT mahmut DASKIN computer engineering department inonu university44280 MalatyaTurkey mechanical engineering department inonu university44280 MalatyaTurkey

In this study, the relationship between the visual information gathered from the flame images and the excess air factor 2 in coal burners is investigated. In conventional coal burners the excess air factor 2. can be obtained using very expensive air measurement instruments. The proposed method to predict ） for a specific time in the coal burners consists of three distinct and consecutive stages; a） online flame images acquisition using a CCD camera, b） extrac- tion meaningful information （flame intensity and bright- ness）from flame images, and c） learning these information （image features） with ANNs and estimate 2. Six different feature extraction methods have been used： CDF of Blue Channel, Co-Occurrence Matrix, L-Frobenius Norms, Radiant Energy Signal （RES）, PCA and Wavelet. When compared prediction results, it has seen that the use of co- occurrence matrix with ANNs has the best performance （RMSE = 0.07） in terms of accuracy. The results show that the proposed predicting system using flame images can be preferred instead of using expensive devices to measure excess air factor in during combustion.

关键词： Excess air factor Flame images Coal burner

Enhancement of pacemaker induced stochastic resonance by an autapse in a scale-free neuronal network

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Science China(Technological Sciences) 2016年第3期59卷 364-370页

作者： YILMAZ Ergin BAYSAL Veli PERC Matjaz OZER mahmut epartment of Biomedical Engineering Engineering Faculty bülent Ecevit University Zonguldak 67100 Turkey Department of Physics Faculty of Sciences King Abdulaziz University Jeddah 21431 Saudi Arabia Faculty of Natural Sciences and Mathematics University of Maribor Korogka cesta 160 Maribor SI-2000 Slovenia Department of Electrical and Electronics Engineering Engineering Faculty bülent Ecevit University Zonguldak 67100 Tarkey

An autapse is an unusual synapse that occurs between the axon and the soma of the same neuron. Mathematically, it can be described as a self-delayed feedback loop that is defined by a specific time-delay and the so-called autaptic coupling strength. Recently, the role and function of autapses within the nervous system has been studied extensively. Here, we extend the scope of theoretical research by investigating the effects of an autapse on the transmission of a weak localized pacemaker activity in a scale-free neuronal network. Our results reveal that by mediating the spiking activity of the pacemaker neuron, an autapse increases the propagation of its rhythm across the whole network, if only the autaptic time delay and the autaptic coupling strength are properly adjusted. We show that the autapse-induced enhancement of the transmission of pacemaker activity occurs only when the autaptic time delay is close to an integer multiple of the intrinsic oscillation time of the neurons that form the network. In particular, we demonstrate the emergence of multiple resonances involving the weak signal, the intrinsic oscillations, and the time scale that is dictated by the autapse. Interestingly, we also show that the enhancement of the pacemaker rhythm across the network is the strongest if the degree of the pacemaker neuron is lowest. This is because the dissipation of the localized rhythm is contained to the few directly linked neurons, and only afterwards, through the secondary neurons, it propagates further. If the pacemaker neuron has a high degree, then its rhythm is simply too weak to excite all the neighboring neurons, and propagation therefore fails.

关键词： autapse self-delayed feedback neuron channel noise scale-free network