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Management of hepatorenal syndrome

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World Journal of Nephrology 2015年第2期4卷 277-286页

作者： Halit ziya Dundar Tuncay Yilmazlar Department of General Surgery Faculty of MedicineUludag University

Hepatorenal syndrome （HRS） is defned as development of renal dysfunction in patients with chronic liver diseases due to decreased effective arterial blood volume. It is the most severe complication of cirrhosis because of its very poor prognosis. In spite of several hypotheses and research, the pathogenesis of HRS is still poorly understood. The onset of HRS is a progressive process rather than a suddenly arising phenomenon. Since there are no specifc tests for HRS diagnosis, it is diagnosed by the exclusion of other causes of acute kidney injury in cirrhotic patients. There are two types of HRS with different characteristics and prognostics. Type 1 HRS is characterized by a sudden onset acute renal failure and a rapid deterioration ofother organ functions. It may develop spontaneously or be due to some precipitating factors. Type 2 HRS is characterized by slow and progressive worsening of renal functions due to cirrhosis and portal hypertension and it is accompanied by refractory ascites. The only definitive treatment for both Type 1 and Type 2 HRS is liver transplantation. The most suitable bridge treatment or treatment for patients who are not eligible for transplantation is a combination of terlipressin and albumin. For the same purpose, it is possible to try hemodialysis or renal replacement therapies in the form of continuous veno-venous hemofiltration. Artificial hepatic support systems are important for patients who do not respond to medical *** intrahepatic portosystemic shunt may be considered as a treatment modality for unresponsive patients to medical treatment. The main goal of clinical surveillance in a cirrhotic patient is prevention of HRS before it develops. The aim of this article is to provide an updated review about the physiopathology of HRS and its treatment.

关键词： Hepatorenal syndrome Cirrhosis Renal failure Vasoconstrictors Transplantation

Off-Grid Photovoltaic System Design for Haiti School Project

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Journal of Power and Energy Engineering 2014年第11期2卷 24-32页

作者： Wentao Feng ziya M. Slameh Department of Electrical Engineering University of Massachusetts Lowell Lowell USA

In this paper a Photovoltaic (PV) system was designed for the Port-Margot School Solar Project in Haiti. This off-grid system consists of PV panels, inverter, battery storage and other components such as fuses, dc/ac disconnects and transformers [1]. Sizing the PV to fit on the roof was determined. The battery storage and inverter were chosen to be installed in the school building. The expected energy production was compared with data file from NASA website. The KW PV system was chosen to be the most effective and demonstrating renewable technologies and reducing the electrical load of the school.

关键词： Haiti Photovoltaic Battery Controller Inverter Layout

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急性主动脉综合征风险分层评分的构建

中国医药导报 2024年第6期21卷 15-20页

作者：孟凡亮付凤霞徐鑫王新艳李勇师猛肖子亚济宁医学院附属医院急诊科山东济宁272029

目的构建对急性主动脉综合征(AAS)诊断具有较高预测价值的AAS风险分层评分(AAS-RSS)。方法回顾性收集2019年8月至2022年7月在济宁医学院附属医院急诊科就诊怀疑AAS患者共630例,根据AAS诊断标准将患者分为AAS组和非AAS组,其中AAS组346... 详细信息

目的构建对急性主动脉综合征(AAS)诊断具有较高预测价值的AAS风险分层评分(AAS-RSS)。方法回顾性收集2019年8月至2022年7月在济宁医学院附属医院急诊科就诊怀疑AAS患者共630例,根据AAS诊断标准将患者分为AAS组和非AAS组,其中AAS组346例,非AAS组284例。采用二分类logistic回归分析法分析AAS的独立危险因素,构建AAS-RSS,绘制ROC曲线对AAS-RSS进行评价。结果 AAS组男性、高血压病、突发胸背部痛、撕裂样或刀割样疼痛、疼痛评分≥5分、持续无缓解、大汗、呼吸困难、呕吐、动脉搏动消失或无脉、四肢血压差异明显、新发主动脉瓣杂音、低血压或休克、D-二聚体、C反应蛋白,合并心包填塞、肠功能障碍、急性肾损伤发生率高于非AAS组,差异有统计学意义(P<0.05)。AAS组深吸气或咳嗽诱发、针刺样疼痛、心悸、合并急性心肌梗死发生率低于非AAS组,差异有统计学意义(P<0.05)。logistic回归分析结果显示,男性、突发胸背部痛、撕裂样或刀割样疼痛、心悸、动脉搏动消失或无脉、D-二聚体、C反应蛋白、合并急性心肌梗死是AAS发生的影响因素(P<0.05)。根据logistic回归分析β值大小及结合ADD-RS(主动脉夹层检测风险评分),共有23个变量被有效整合成AAS-RSS。AAS-RSS分值高低与AAS的发生呈正相关(r=0.72,P<0.05)。AAS-RSS、ADD-RS预测发生AAS的曲线下面积分别为0.919(0.898~0.941)、0.734(0.694~0.773)。AAS-RSS约登指数最大值为0.699,截断值为8.5分,AAS-RSS评分9分为区分高危AAS和低危AAS的界值。AAS-RSS识别高危AAS的灵敏度、特异度分别为89.3%、80.6%;ADD-RS识别高危AAS的灵敏度、特异度分别为85.0%、52.5%。结论 AAS-RSS对AAS风险分层具有较高预测价值。

关键词：急性主动脉综合征急性主动脉夹层风险分层诊断

Simultaneous Intravitreal Ranibizumab and Dexamethasone Implant Administration at the Same Setting in Eyes with Severe Diabetic Macular Edema

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Open Journal of Ophthalmology 2016年第2期6卷 112-118页

作者： Ali Osman Saatci ziya Ayhan Ceren Durmaz Engin Department of Ophthalmology Dokuz Eylul University Izmir Turkey

Aim: To share our experience in eyes with severe DME (exhibiting serous retinal detachment or large cysts) treated with simultaneous intravitreal ranibizumab and dexamethasone implant administration at the same setting as the first treatment step. Subjects and Results: Five eyes of three patients with DME who were either treatment naive or relatively undertreated were presented in this report. As optical coherence tomography exhibited serous retinal detachment or severe cystoid edema with large cysts, intravitreal ranibizumab and dexamethasone implant were simultaneously employed at the same setting as the first treatment step in those eyes. Panretinal photocoagulation was also commenced bilaterally a week after the start of injections when at least one eye had retinal neovascularization. Subsequent treatments of intravitreal ranibizumab and/or dexamethasone implant were administered. Patients were followed up for seven, eight and 13 months respectively. All five eyes achieved a relative anatomic stability and experienced visual improvement at the end of follow-up. Conclusion: In some cases with severe DME with or without proliferative diabetic retinopathy, simultaneous intravitreal ranibizumab and dexamethasone implant administration at the same setting may be a better option to initiate the treatment over mono ranibizumab treatment. A randomized study comparing the mono anti-VEGF therapy and mono dexamethasone implant administration with simultaneous treatment may outline the place of this type of therapy in the treatment armamentarium of severe DME.

关键词： Dexamethasone Implant Diabetic Macular Edema Optical Coherence Tomography Ozurdex Ranibizumab

UD Decomposition Based Adaptive UKF for Nonlinear Estimation of States and Parameters

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UD Decomposition Based Adaptive UKF for Nonlinear Estimation...

第40届中国控制会议

作者： ziya Jiang Wang Gao College of Artificial Intelligence Jianghan University

The unscented Kalman filter（UKF） has been a helpful technique which is widely used for nonlinear estimation of states and parameters, fusion of information, target tracking, and fault diagnosis, etc. However, in the case of unknown covariance matrices of process noises and measurement noises, its convergence and performance cannot be guaranteed. To overcome this problem, this paper proposed an adaptive UKF, which is based on the principle of match of covariance between the theoretical matrix and the estimated matrix. A threshold condition is given out to trigger the adaptive process, thus the original stability of UKF will not be decreased. What’s more, a UD decomposition technique is introduced to improve the numerical stability of the adaptive UKF. To compare the performance of the adaptive method and UD decomposition based UKF, an index of degree of mismatch is proposed alongside with root mean square error. Simulation results verify the better accuracy and robustness of the proposed filter.

关键词： adaptive UKF nonlinear estimation UD decomposition

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汉口城市展厅及幼儿园,武汉,湖北,中国

世界建筑 2024年第3期 62-63页

作者：无田笛朱珠林子雅黄家杰徐志维翁策楷张超(摄影) 一树建筑工作室不详武汉天华建筑设计有限公司存在建筑-建筑摄影

建筑师收到委托为武汉市汉口唐家墩设计一座在不同时段适应售楼处和幼儿园两个完全不同的功能主题和规范要求的建筑。委托方与建筑师协商希望通过一座建筑适应两种用途的方式,来节约建造一座临时销售中心的成本,并避免后续拆除所带来的... 详细信息

建筑师收到委托为武汉市汉口唐家墩设计一座在不同时段适应售楼处和幼儿园两个完全不同的功能主题和规范要求的建筑。委托方与建筑师协商希望通过一座建筑适应两种用途的方式,来节约建造一座临时销售中心的成本,并避免后续拆除所带来的环境干扰。

关键词：售楼处幼儿园环境干扰建筑师展厅委托方汉口武汉市

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基于信息交流机制的经济负荷分配优化算法

电网技术 2021年第3期45卷 1068-1077页

作者：肖子雅刘升上海工程技术大学管理学院上海市松江区201620

该文提出一种基于信息交流机制的多策略精英反向学习黄金正弦鲸鱼算法(multistrategyeliteopposition-based golden-sinewhaleoptimizationalgorithm,MSEGolden-SWOA)以解决电力经济负荷分配(economicloaddispatch,ELD)问题,将多策略信息交流机制引入精英反向学习黄金正弦鲸鱼算法,以改善个体间的交流机制,增强算法解决实际问题的效率和适应性。4个不同规模的标准IEEE系统的测试表明,相比其他智能算法,MSEGolden-SWOA在处理ELD问题上的求解精度和效率都有所提升,是求解该问题的有效方法。

关键词：电力系统经济负荷分配鲸鱼优化算法信息交流机制

Calculation of the Spinning Speed of a Free Electron

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Journal of Modern Physics 2020年第1期11卷 9-15页

作者： Mesude Saglam Burcin Bayram ziya Saglam Hanasli Gur Department of Physics Faculty of Science University of Ankara Ankara Turkey Department of Physics Miami University Oxford OH USA Department of Physics Faculty of Science University of Aksaray Aksaray Turkey Department of Engineering in Physics Ankara University Ankara Turkey

In a recent work, we calculated the magnetic field inside a free electron due to its spin, and found it to be about B = 8.3 × 1013 T. In the present study we calculate the spinning speed of a free electron in the current loop model. We show that spinning speed is equal to the speed of light. Therefore it is shown that if electron was not spinning the mass of electron would be zero. But since spinning is an unseparable part of an electron, we say that mass of electron is non-zero and is equal to (m = 9.11 × 10−28 g).

关键词： Spinning Speed Intrinsic Current Intrinsic Magnetic Field The Intrinsic Flux of Electron Current Loop Model

Dissolution of hydrous Th (Ⅳ) oxide in aqueous Na^+-H^+-OH^--NO3^--H2O^- solutions in the presence of citrate, EDTA and oxalate

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Chinese Journal Of Geochemistry 2006年第B8期25卷 245-246页

作者： ziya S. Cetiner Scott A. Wood Canakkale 18 Mart University Department of Geological Engineering Canakkale 17020 TURKEY University of Idaho Department of Geolocical Sciences Moscow 1D 83844 USA