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Cost-effectiveness analysis of tele-retinopathy of prematurity screening in Iran

International Journal of Ophthalmology(English edition) 2021年第4期14卷 560-566页

作者： Seyed-Farzad Mohammadi Ameneh Rahban Sahel Darabeigi Nastaran Salimi afsar farahani Alireza Lashay Cyrus Alinia Translational Ophthalmology Research Center Farabi Eye HospitalTehran University of Medical SciencesTehran ***Iran Department of Health Management and Economics School of Public HealthUrmia University of Medical SciencesUrmia 571478334Iran

AIM:To conduct a cost-utility analysis of the teleretinopathy of prematurity(ROP)screening program against no ***:A decision tree model was developed to identify and treat the infants with threshold ROP through the tele-screening system compared with no screening program from the societal *** used the quality adjusted life years(QALY)index to measure the scenarios’effectiveness,which was discounted for the future years by *** hundred twenty-six randomly selected newborns with ROP required treatment were investigated to extract the treatment *** considered the direct medical and non-medical costs in cost calculations analysed by the bottom-up *** figures of the model’s inputs were calculated using the Monte Carlo simulation that generated 1000 random iteration of the data,and a one-way sensitivity analysis was performed on the model to cope with the potential ***:The total and per capita needed the budget to establish a tele-ROP screening system were estimated at over 1.5 million and 35.13 USD,*** total cost of identifying and treating an ROP case in tele-screening and no screening strategies were obtained as 108.72 and 63.52 USD,respectively,and their lifetime discounted QALY gained were calculated as 15.39 and 15.11,***,incremental cost-effectiveness ratio(ICER)of tele-screening strategy against the competitive strategy was achieved as 161.43 ***:Tele-ROP screening program is one of the most cost-effective interventions in the Iranian health system and has a high priority to receive a budget for implementation.

关键词： cost-utility analysis incremental cost-effectiveness ratio quality adjusted life years tele-retinopathy of prematurity

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MyoRing植入术治疗圆锥角膜的疗效观察

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国际眼科杂志 2024年第4期24卷 500-507页

作者： Masoud Khorrami-Nejad Rawshan Jumaah Farshid Karimi Khosrow Jadidi Mobina farahani Reza Yousefi 伊朗德黑兰医科大学康复学院 *** 伊朗马什哈德医科大学眼视光系 *** 伊朗德黑兰Bina眼科医院研究中心眼科 *** 伊朗哈马丹Hamedan医科大学 ***

目的:比较MyoRing植入前后圆锥角膜(KCN)患者角膜前后表面散光和全屈光散光。方法:历史队列研究。比较植入360度全环植入物(MyoRing)的KCN患者的术前和术后全屈光、角膜前后表面散光,术后3、6、9、12 mo连续随访四次。结果:共纳入KCN患... 详细信息

目的:比较MyoRing植入前后圆锥角膜(KCN)患者角膜前后表面散光和全屈光散光。方法:历史队列研究。比较植入360度全环植入物(MyoRing)的KCN患者的术前和术后全屈光、角膜前后表面散光,术后3、6、9、12 mo连续随访四次。结果:共纳入KCN患者79例85眼,其中男43例,女36例,平均年龄29±7.41(17-48)岁。随访期间,全屈光散光、角膜前后表面散光呈减少趋势。MyoRing植入后12 mo,总屈光散光测量值显著下降2.09 D (4.27±3.15 vs2.18±1.63 D,P<0.001)。此外,术后测量显示,角膜前表面和后表面散光分别改善约3.20 D和0.59 D[6.40±1.90 vs 3.20±1.75 D(P<0.001)和1.30±0.55 vs 0.71±0.35(P<0.001)]结论:MyoRing植入可显著改善散光参数,包括全屈光散光以及角膜前后表面散光。

关键词：圆锥角膜角膜基质环植入术 MyoRing 角膜地形图总散光角膜散光

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Enhancing diaphragmatic defect repair and regeneration:How biomaterials leading the way to progress?

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BMEMat(BioMedical Engineering Materials) 2024年第3期2卷 92-107页

作者： Mojtaba farahani Przemysław Gnatowski Raziyeh Najafloo Tina Navaei Edyta Piłat Justyna Kucińska-Lipka Mohammad Reza Saeb Masoud Mozafari Institute of Biomedical Engineering Department of Pharmacology and PhysiologyFaculty of MedicineUniversity of MontrealMontrealCanada Research Center Centre Hospitalier Universitaire Sainte-JustineMontrealCanada Department of Polymer Technology Faculty of ChemistryGdańsk University of TechnologyGdańskPoland Faculty of Sustainable Design Engineering University of Prince Edward IslandCharlottetownCanada Department of Pharmaceutical Chemistry Medical University of GdańskGdańskPoland Research Unit of Medical Imaging Physics and TechnologyFaculty of MedicineUniversity of OuluOuluFinland

Physicians encounter significant challenges in dealing with large diaphragmatic defects in both pediatric and adult *** hernias,such as Morgagni,Bochdalek,and Hiatus hernias,can result in congenital lesions that are often undiagnosed until the appearance of symptoms(bleeding,anemia,and acid reflux).Therefore,substantial potential exists for developing tissue-engineered constructs as novel therapeutic options in *** research indicates promising mid-term performance for both natural and synthetic ***,studies exploring their application in diaphragm regeneration are limited and remain in the early research ***,further investigation is required to address the constraints in human tissue supply for clinical *** article comprehensively reviews the role of biomaterials in diaphragmatic tissue repair and *** emphasizes biomaterials,including biomimetic polymers used in technological *** summary will enable researchers to critically assess the capability of existing natural biomaterials as essential tissueengineered patches for clinical use.

关键词： biomaterials diaphragm diaphragmatic defects hernia scaffolds

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An investigation of the seismic behavior of a deck-type reinforced concrete arch bridge

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Earthquake Engineering and Engineering Vibration 2017年第3期16卷 609-625页

作者： Emadoddin Majdabadi farahani Shahrokh Maalek School of Civil Engineering College of Engineering University of Tehran Tehran Iran

This paper attempts to explore potential benefits of form in a deck-type reinforced concrete（RC） arch bridge in connection with its overall seismic behavior and performance. Through a detailed three-dimensional finite element modeling and analysis of an actual existing deck-type RC arch bridge, some useful quantitative information have been derived that may serve for a better understanding of the seismic behavior of such arch bridges. A series of the nonlinear dynamic analyses has been carried out under the action of seven different time histories of ground motion scaled to the AASHTO 2012 response spectrum. The concept of demand to capacity ratios has been employed to provide an initial estimation of the seismic performance of the bridge members. As a consequence of the structural form, a particular type of irregularity is introduced due to variable heights of columns transferring the deck loads to the main arch. Hence, a particular attention has been paid to the internal force/moment distributions within the short, medium, and long columns as well as along the main arch. A study of the effects of the vertical component of ground motion has demonstrated the need for the inclusion of these effects in the analysis of such bridges.

关键词： deck-type RC arch bridge seismic response nonlinear time history analysis vertical component of groundmotion

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A novel method for the management of sulfone-rich waste produced in the oxidative desulfurization(ODS) process

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Chinese Journal of Chemical Engineering 2020年第9期28卷 2447-2456页

作者： Sobhan farahani Mohammad Amin Sobati School of Chemical Engineering Iran University of Science and Technology(IUST)Tehran 16765-163Iran

The oxidative desulfurization(ODS) process is one of the new desulfurization processes for the production of clean fuels. Despite the benefits of the ODS process, this process faces several important challenges. One of the most important challenges of this process is the management of a waste which is rich of sulfone *** the present study, a new strategy which is the addition of waste to the bitumen with other solid waste such as high density polyethylene(HDPE) waste has been investigated. The experimental design method was applied to investigate the effect of addition of the sulfone and HDPE wastes to the properties of the bitumen blends including degree of penetration, softening point, and mass loss. It was found that the sulfone waste can be added to the bitumen as a softener. The results showed that several grades of bitumen including 50/60, 60/70, 85/100 can be produced through the addition of sulfone waste along with the HDPE waste to the base 60/70 *** general, the application of simple processes such as mixing the wastes with the bitumen can reduce the cost of waste management, considerably.

关键词： OXIDATIVE desulfurization Waste management Sulfone waste Bitumen Experimental design High density polyethylene(HDPE)waste

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Multivariate optimization of high removal of lead(Ⅱ) using an efficient synthesized Ni-based metal-organic framework adsorbent

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Chinese Journal of Chemical Engineering 2021年第1期34卷 146-153页

作者： Saeideh Dermanaki farahani Javad Zolgharnein Chemistry Department Sciences FacultyArak UniversityArakIran

A new metal-organic framework(MOF) with the chemical formula of [Ni_(2) F_2(4,4'-Bipy)_(2)(H_(2) O)_(2)](VO_(3))_(2)·8 H_(2) O was introduced to adsorb Pb(Ⅱ) with the highest *** sorbent was characterized by thermogravimetric analysis(TGA),infrared spectroscopy(FT-IR),field-emission scanning electron microscopy(FESEM),energy-dispersive Xray(EDX),and elemental *** optimum conditions were obtained by a face-centered central composite design(FCCD) as follows:adsorbent dosage(m)=1.2 mg, initial concentration of Pb(Ⅱ)(C)=390 mg·L^(-1),and pH=*** to the Langmuir model(R~2=0.9999),the maximum monolayer uptake capacity of lead(Ⅱ) is 2400.7 mg·g^(-1),which is the highe st observed amount for lead(Ⅱ) *** of the old adsorbents for lead(Ⅱ)has the uptake capacity over 2000 mg·g^(-1).The model of pseudo-second-order describes well the process *** adsorption process of lead(Ⅱ) is independent of temperature *** compound can adsorb lead(Ⅱ) from tap *** addition to introducing a new MOF with the highest uptake capacity for removal of Pb(Ⅱ) that is the outright novelty of this study,the concurrent modeling of both the removal percent(R) and the uptake capacity(q) is another important *** it achieves the more economical and favorable optimum conditions in comparison with the single optimization of each response.

关键词： Adsorption Heavy metals Kinetics Lead(Ⅱ) Metal-organic framework Optimization

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Chemical functionalization of chitosan biopolymer and chitosan-magnetite nanocomposite with sulfonic acid for acid-catalyzed reactions

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Chinese Journal of Chemical Engineering 2021年第11期34卷 154-161页

作者： Majid Masteri-farahani Samaneh Shahsavarifar Research Institute of Green Chemistry Faculty of ChemistryKharazmi UniversityTehranIran

Chemical functionalization of chitosan biopolymer and chitosan-magnetite nanocomposite was performed with sulfonic acid functional groups to achieve new solid acid *** sulfonic acid functional groups were created through the ring opening nucleophilic reaction of amine groups of chitosan with 1,4-butane *** transform infrared spectroscopy(FT-IR)and X-ray photoelectron spectroscopies(XPS)verified the successful sulfonic acid functionalization of *** obtained sulfonic acid functionalized chitosan-magnetite nanocomposite showed superparamagnetic properties according to the vibrating sample magnetometry analysis and exhibited magnetic separation feature from dispersed *** adsorption-desorption analysis indicated the increase in surface area after formation of chitosan-magnetite nanocomposite and functionalization with sulfonic *** of the prepared solid acids exhibited high catalytic activities in the acid-catalyzed acetic acid esterification with n-butanol and benzaldehyde acetalization with ethylene glycol as model ***,they can be reused several times without considerable loss of their activities.

关键词： Chitosan Magnetite Nanostructure Sulfonic acid Catalysis Esterification

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Ratcheting behavior of notched stainless steel samples subjected to asymmetric loading cycles

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Journal of Iron and Steel Research International 2021年第1期28卷 86-97页

作者： A.Shekarian A.Varvani‑farahani Department of Mechanical and Industrial Engineering Ryerson UniversityToronto M5B 2K3ONCanada

The ratcheting response of 316 stainless steel samples at the vicinity of notch roots under single-and multi-step loading conditions is ***-step tests were conducted to examine local ratcheting at different low–high–high and high–low–low loading *** stress levels over loading steps and their sequences highly influenced ratcheting magnitude and *** change of stress level from low to high promoted ratcheting over proceeding cycles while ratcheting strains dropped in magnitude for opposing sequence where stress level dropped from high to *** ratcheting strain values at the vicinity of notch root were found noticeably larger than nominal ratcheting values measured at farer distances from notch edge through use of strain *** values in both mediums of local and nominal were promoted as notch diameter *** assess progressive ratcheting response and stress relaxation concurrently,the Ahmadzadeh-Varvani(A-V)kinematic hardening rule was coupled with Neuber’s rule enabling to calculate local stress at notch root of steel *** stress/strain values were progressed at notch root over applied asymmetric stress cycles resulting in ratcheting buildup through A-V *** relaxation of stress values at a given peak-valley strain event was governed through the Neuber’s *** ratcheting data were found agreeable with those predicted through the coupled framework.

关键词： Ratcheting strain Notch root Step-loading Loading sequence Kinematic hardening rule Neuber’s rule

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Smart and collaborative industrial IoT: A federated learning and data space approach

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Digital Communications and Networks 2023年第2期9卷 436-447页

作者： Bahar farahani Amin Karimi Monsefi Cyberspace Research Institute Shahid Beheshti UniversityTehran***Iran Department of Computer Science and Engineering Ohio State UniversityColumbusOH43210USA

Industry 4.0 has become a reality by fusing the Industrial Internet of Things(IIoT)and Artificial Intelligence(AI),providing huge opportunities in the way manufacturing companies ***,the adoption of this paradigm shift,particularly in the field of smart factories and production,is still in its infancy,suffering from various issues,such as the lack of high-quality data,data with high-class imbalance,or poor diversity leading to inaccurate AI ***,data is severely fragmented across different silos owned by several parties for a range of reasons,such as compliance and legal concerns,preventing discovery and insight-driven IIoT ***,valuable and even vital information often remains unutilized as the rise and adoption of AI and IoT in parallel with the concerns and challenges associated with privacy and *** adversely influences interand intra-organization collaborative use of IIoT *** tackle these challenges,this article leverages emerging multi-party technologies,privacy-enhancing techniques(e.g.,Federated Learning),and AI approaches to present a holistic,decentralized architecture to form a foundation and cradle for a cross-company collaboration platform and a federated data space to tackle the creeping fragmented data ***,to evaluate the efficiency of the proposed reference model,a collaborative predictive diagnostics and maintenance case study is mapped to an edge-enabled IIoT *** results show the potential advantages of using the proposed approach for multi-party applications accelerating sovereign data sharing through Findable,Accessible,Interoperable,and Reusable(FAIR)principles.

关键词： Industry 4.0 Industrial internet of things(IIoT) Artificial intelligence(AI) Predictive maintenance(PdM) Condition monitoring(CM) Federated learning(FL) Privacy preservinig machine learning(PPML) Edge computing Fog computing Cloud computing

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Assessing renewable-energy potential and feasibility in Tehran’s buildings

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Clean Energy 2022年第6期6卷 944-958页

作者： Mehrab Hemmati farahani Marjan Namazzadeh Azin Hemmati farahani Faculty of Engineering Islamic Azad UniversityArak BranchIran Faculty of Geography and Urban planning University of Yadgar Emam Shahr Rey Islamic Azad University TehranIran Faculty of Engineering University of Eyvanekey Iran

This article examines the results of using renewable energy to reduce the energy consumption of buildings *** particular,it looks at the results in a country such as Iran,which has a high potential for using solar energy.A comparison of the energy consumption of selected case samples based on the type of ownership of private,government and municipal buildings in 22 districts of Tehran has been *** data for energy consumption and Strengths,Weaknesses,Opportunities,Threats analysis includes open and usable spaces for installing renewable-energy systems in 10%of public buildings,4%of private facilities and 10%of municipal *** results of this study show that the average energy consumption of buildings in Tehran is almost four times the global *** has~300 days of sunlight for installing solar panels in any place where solar energy is in direct contact with the ***,it allows the building to use the energy absorbed by the discussions in all *** 2050,this country could play a decisive role in producing renewable *** addition,solar energy may reduce fossil-fuel consumption and production costs.

关键词： renewable energy 22 districts of Tehran environmental SWOT analysis building energy consumption

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