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Ankylosing spondylitis: A state of the art factual backbone

World Journal of Radiology 2015年第9期7卷 236-252页

作者： Mohammad Ghasemi-rad Hosam Attaya Emal Lesha Andrea Vegh Tooraj Maleki-Miandoab Emad Nosair Nariman Sepehrvand Ali Davarian Hamid Rajebi Abdolghader Pakniat seyed amirhossein fazeli Afshin Mohammadi Division of Inter-ventional Radiology Massachusetts General Hospital Harvard Medical School Harvard--MIT Division of Health Sciences and Technology Mass-achusetts Institute of Technology College of Science and Mathematics University of Massachusetts Boston Department of Materials Science and Engineering Faculty of Applied Science and Engineering University of Toronto Department of Radiology Urmia University of Medical Sciences Anatomical Sciences Basic Medical Sciences Department College of Medicine Sharjah University Department of Medicine University of Alberta Ischemic Disorders Research Center Golestan University of Medical Sciences Radiology Department SUNY Upstate Medical University Department of Emergency Medicine Arak University of Medical Science Department of Medicine Zahedan University of Medical Sciences Solid Tumor Research Center Imam Khomaini Hospital University of Medical Sciences

Ankylosing spondylitis(AS) is a chronic inflammatory disease that affects 1% of the general population. As one of the most severe types of spondyloarthropathy, AS affects the spinal vertebrae and sacroiliac joints, causing debilitating pain and loss of mobility. The goal of this review is to provide an overview of AS, from the pathophysiological changes that occur as the disease progresses, to genetic factors that are involved with its onset. Considering the high prevalence in the population, and the debilitating life changes that occur as a result of the disease, a strong emphasis is placed on the diagnostic imaging methods that are used to detect this condition, as well as several treatment methods that could improve the health of individuals diagnosed with AS.

关键词： Ankylosing spondylitis Magnetic resonance imaging

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Platform Evolution in an Oligo-Miocene Back-arc Basin:An Example from the Central Iran Basin

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Acta Geologica Sinica(English Edition) 2024年第1期98卷 185-206页

作者： Masoud SHARIFI-YAZDI amirhossein ENAYATI Jamal SALEHI AGHDAM Mohammad BAHREHVAR seyed Mustafa REZAEI Department of Geology Faculty of Earth SciencesGeography and AstronomyUniversity of Vienna1090 Vienna.Austria Geology and Geophysics Department Tehran Energy Consultants(TEC Co.)TehranIran School of Geology College of ScienceUniversity of TehranTehranIran Department of Geology Tarbiat Modares UniversityTehranIran

The Qom Formation is the most important hydrocarbon reservoir target in Central *** Qom platform developed in a back-arc basin during the Oligo-Miocene due to the closing of the Tethyan *** formation consists of a variety of carbonate and non-carbonate facies deposited on a platform ranging from supratidal to basin.A combination of tectonic and eustatic events led to some lateral and vertical facies variations in the study *** third-order depositional sequences and related surfaces were identified regarding vertical facies changes in the studied sections of this Oligo-Miocene *** to all results and data,this succession was initially deposited during the Chattian upon a distally steepened ramp of siliciclastic-carbonate composition,including the Bouma ***,from the late Chattian to the Aquitanian,the platform changed into a homoclinal carbonate ramp with a gentle *** respect to tectonic activity,this phase was a calm period during the deposition of the Qom ***,a drowned carbonate platform and a rimmed shelf emerged during the Burdigalian,terminated by the continental deposits of the Upper Red *** all geological characteristics,three main tectono-eustatic evolutionary phases have been recognized in the Qom back-arcbasin.

关键词： carbonate ramp depositional facies submarine fan eustasy basement faults back-arc basin

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Multi-objective design optimization of a large-scale directdrive permanent magnet generator for wind energy conversion systems

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Frontiers in Energy 2014年第2期8卷 182-191页

作者： Arash Hasssanpour ISFAHANI amirhossein Haji-seyed BOROUJERDI Saeed HASANZADEH Everette Energy LLC Dallas 75225 USA Faculty of Electrical and Engineering Islamic Azad University Islamshahr Branch Tehran 33147-67653 Iran Facuty of Electrical and Computer Engineering Qom University of Technology Qom 1519-37195 Inan

This paper presents a simukaneous multi- objective optimization of a direct-drive permanent magnet synchronous generator and a three-blade horizontal-axis wind turbine for a large scale wind energy conversion system. Analytical models of the generator and the turbine are used along with the cost model for optimization. Three important characteristics of the system i.e.,the total cost of the generator and blades, the annual energy output and the total mass of generator and blades are chosen as objective functions for a multi-objective optimization. Genetic algorithm （GA） is then employed to optimize the value of eight design parameters including seven generator parameters and a turbine parameter resulting in a set of Pareto optimal solutions. Four optimal solutions are then selected by applying some practical restrictions on the Pareto front. One of these optimal designs is chosen for finite element verification. A circuit-fed coupled time stepping finite element method is then performed to evaluate the no-load and the full load performance analysis of the system including the generator, a rectifier and a resistive load. The results obtained by the finite element analysis （FEA） verify the accuracy of the analytical model and the proposed method.

关键词： permanent magnet synchronous generator wind turbine direct-drive multi-objective optimization,

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Distribution and variability of n-alkanes in waxes of conifers

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Journal of Forestry Research 2019年第2期30卷 429-433页

作者： Mohamad Hassanzadeh-Khayyat Maryam Akaberi Hamideh Moalemzadeh Haghighi amirhossein Sahebkar seyed Ahmad Emami Pharmaceutical Research Centre Department of Medicinal Chemistry School of Pharmacy Mashhad University of Medical Sciences Student Research Committee Department of Pharmacognosy School of Pharmacy Mashhad University of Medical Sciences Biotechnology Research Center Pharmaceutical Technology Institute Mashhad University of Medical Sciences Neurogenic Inflammation Research Center Mashhad University of Medical Sciences School of Pharmacy Mashhad University of Medical Sciences Department of Pharmacognosy School of PharmacyMashhad University of Medical Sciences

Epicuticular waxes have vital roles in the growth and development of plants and in defense. Conifers have a considerable amount of waxes on their cones and *** we characterized the n-alkane composition of Iranian conifers, including Juniperus oblonga, J. foetidissima, ***, J. communis subsp. hemisphaerica, J. excelsa,Cupressus sempervirens, Platycladus orientalis from Cupressaceae and Taxus baccata from Taxaceae for the first time using GC-FID analyses. In the waxes, 25 n-alkane homologs with chain lengths ranging from C7 to C32 were identified. Short-chain n-alkanes were dominant in almost all samples with some exceptions. Complementary studies to elucidate complete wax constituents of Iranian conifers and n-alkane distribution pattern as a function of geographical and bioclimatic variables are recommended.

关键词： Gymnosperms Iranian conifers Epicuticular waxes Cupressaceae Taxaceae

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Dominant factors in MiniCone, CPT and pile correlations: A data‐based approach

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Deep Underground Science and Engineering 2023年第4期2卷 346-358页

作者： seyed Sajad Shirani Abolfazl Eslami amirhossein Ebrahimipour Moses Karakouzian Department of Civil and Environmental Engineering Amirkabir University of Technology(AUT)(Tehran Polytechnic)TehranIran University of California San Diego San DiegoCaliforniaUSA Department of Civil and Environmental Engineering and Construction University of NevadaLas VegasNevadaUSA

The cone penetration test(CPT)contributes to the design and analysis of piles regarding geometry,installation effect,and pile capacity(shaft and toe resistance).MiniCone,as an alternative to CPT sounding,has been used to carry outﬁeld and laboratory investigations by physical *** tests can be practically carried out through light equipment and small soil mass,involving fewer errors caused by boundary ***,it can be used for in situ testing,such as quality control,assessment of ground improvement,and subgrade characterization.A database comprising MiniCone and CPT records inﬁeld and physical modeling is proposed with a variety of cone *** case study records in the database have been obtained from 140 tests compiled from data from 26 *** sources include the results of 20 physical modelings andﬁeld data from six sites in 10 *** data comprise MiniCone and CPT cone tip resistance(qc),and sleeve friction(fs).The different cones are used in sandy,silty sand,and clayey soils via simple chambers(1 g),calibration chambers,and frustum conﬁning *** addition,correlations were found in penetration records in terms of physical modeling types,cone diameters,penetration rates,and soil ***,qc and fs are related to capacities of pile toes and shafts using proper correlation coefﬁcients less than unity,*** and dominant factors in geotechnical practice between MiniCone,CPT,and pile have been reviewed and discussed.

关键词： correlations CPT database dominant factors MiniCone pile

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Complication of lengthening and the role of post-operative care, physical and psychological rehabilitation among fibula hemimelia

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World Journal of Clinical Cases 2022年第24期10卷 8482-8489页

作者： Maryam Salimi Rojin Sarallah Salar Javanshir seyed Peyman Mirghaderi amirhossein Salimi Shokoufeh Khanzadeh Department of Orthopaedic Surgery Shiraz University of Medical SciencesShiraz 71936-13311Iran Department of Medicine Islamic Azad University Medical Branch of TehranTehran 713843809Iran Students'Scientific Research Center Tehran University of Medical SciencesTehran ***Iran Department of Medicine Shahid Sadoughi University of Medical SciencesYazd ***Iran Student Research Committee Tabriz Sadoughi University of Medical SciencesTabriz 716534908Iran

There is a clear clinical need for efficient physiotherapy and rehabilitation programs during and after bone lengthening and reconstruction for gaining the optimal effect and also prevention or treatment of lengthening side *** tract infection is the most prevalent side effect during lengthening which could be prevented and treated initially via proper wound *** contractures are typically a consequence of the generated tension on the distracted *** can be managed by physiotherapy initially and surgically in later severe ***,it is essential to avoid muscle contracture development,which is the demonstration of the imbalanced muscle appeals on the joint to inhibit the following *** knee is the furthermost affected joint by the aforementioned problem due to the inherent lack of ligamentous and bony *** stiffness is the other possible unfavorable effect of *** happens because of extensive muscle contractures or may possibly be attributed to rigidity of the joint following the amplified pressure on the joint surface during the process of *** and occupational therapy including endurance and strength exercise as well as stretching play an important role during the rehabilitation periods for the prevention and also the treatment of muscle contracture and the following deformity and also joint ***,the effect of mental and physical rehabilitation programs should not be overlooked.

关键词： Fibular hemimelia Rehabilitation Reconstruction Lengthening

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The lack of association between different LDL-C levels and oxidized LDL in patients with type 2 diabetes

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Chronic Diseases and Translational Medicine 2023年第4期9卷 329-335页

作者： Soghra Rabizadeh seyed Arsalan seyedi seyed Ali Nabipoorashrafi Maryamossadat Omidvar Siahkalmahalleh amirhossein Yadegar Fatemeh Mohammadi Armin Rajab Alireza Esteghamati Manouchehr Nakhjavani Endocrinology and Metabolism Research Center(EMRC) Vali-Asr HospitalSchool of MedicineTehran University of Medical SciencesTehranIran

Background:High concentrations of low-density lipoprotein cholesterol(LDL-C)have been a known risk factor for cardiovascular ***,the role of oxidized LDL(ox-LDL)in forming atherosclerosis plaque has been ***,it has not yet been proven that atherogenic LDL-C byproducts like ox-LDL will decrease by keeping the LDL levels at the desired *** study aimed to examine the relationship between LDL-C and ox-LDL in different LDL-C values in patients with type 2 diabetes(T2D).Methods:In this cross-sectional study,347 patients with T2D who received statins were ***-C values were defined into four groups as LDLC100 mg/dL in patients with ***,the revealed association of ox-LDL with TG level and TG/HDL ratio may be considered in the clinic.

关键词： atherosclerosis diabetes mellitus lipids lipoproteins low-density lipoprotein oxidized LDL

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Repositioning of Electric Distribution Substations Using Fuzzy Decision Making

Repositioning of Electric Distribution Substations Using Fuz...

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2011 2nd International Conference on Advances in Energy Engineering(ICAEE)

作者： seyed amirhossein Khoshsolat Nuraini Abdul Aziz Napsiah Ismail Normariah Adam Department of Mechanical and Manufacturing Engineering Faculty of Engineering University Putra Malaysia

Electric distribution substations have an important role in energy distribution *** substations transfer energy from 20000 V to 400 V in centre of *** decision in utilizing of this substation is basically assert on one attribute and most of time some important aspects may be *** this paper,the analysis of is done by using fuzzy logic method(fuzzy multi criteria decision making and choose four basic attribute involving lose of energy,voltage profile,cost and beautification by selecting one residential site in Noshahr City of Mazandran,Iran plus another four possible *** in this study,the intention is to optimize the position of substation and at the same time suggesting on the extension and construction of a new *** to conclude of this study the decision will help the electric managers and designers to be able to get multi aspects of decision making and improve the design,locations and grid reconstruction of the distribution substations.

关键词： Substations fuzzy logic multi-criteria repositioning decision-making

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Conduction system disorders and electro-cardiographic findings in COVID-19 deceased patients in 2021,Shiraz,Iran

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World Journal of Cardiology 2022年第12期14卷 617-625页

作者： Mohammad Hossein Nikoo Alireza Sadeghi Alireza Estedlal Reza Fereidooni Niloofar Dehdari Ebrahimi amirhossein Maktabi Mahtab Kamgar Fatemeh Mehran Omid Mehdibeygi Haleh Esfandiari Mohammadamir Taherinezhad Tayebi seyed Taghi Heydari Noncommunicable Diseases Research Centre Shiraz University of Medical SciencesShirazIran Student Research Committee Shiraz University of Medical SciencesShirazIran Health Policy Research Center Institute of HealthShiraz University of Medical SciencesShirazIran

BACKGROUND Cardiac conduction disorders and electrocardiographic(ECG)changes may occur as a manifestation of coronavirus disease 2019(COVID-19),especially in severe *** To describe conduction system disorders and their association with other electrocardiographic parameters in patients who died of *** In this cross-sectional study,electrocardiographic and clinical data of 432 patients who expired from COVID-19 between August 1st,2021,and December 1st,2021,in a tertiary hospital were *** Among 432 patients who died from COVID-19,atrioventricular block(AVB)was found in 40(9.3%).Among these 40 patients,28(6.5%)suffered from 1st degree AVB,and 12(2.8%)suffered from complete heart block(CHB).Changes in ST-T wave,compatible with myocardial infarction or localized myocarditis,appeared in 189(59.0%).Findings compatible with myocardial injury,such as fragmented QRS and prolonged QTc,were found in 91 patients(21.1%)and 28 patients(6.5%),*** patients who died of COVID-19,conduction disorder was unrelated to any underlying medical *** QRS,axis deviation,and ST-T changes were significantly related to conduction system disorder in patients who died of COVID-19(P value<0.05).CONCLUSION Conduction system disorders are associated with several other ECG abnormalities,especially those indicative of myocardial ischemia or *** patients(73.14%)who died of COVID-19 demonstrated at least one ECG abnormality *** a COVID-19 patient's ECG gives important information regarding their cardiac health,our findings can help develop a risk stratification method for at-risk COVID-19 patients in future studies.

关键词： COVID-19 Conduction system disorder Electrocardiography Atrioventricular block

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Are There Differences in the Response of Natural Stand and Plantation Biomass to Changes in Temperature and Precipitation?A Case for Two-needled Pines in Eurasia

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Journal of Resources and Ecology 2020年第4期11卷 331-341页

作者： USOLTSEV Vladimir Andreevich SHOBAIRI seyed Omid Reza TSEPORDEY Ivan Stepanovich AHRARI amirhossein ZHANG Meng SHOAIB Ahmad Anees CHASOVSKIKH Viktor Petrovich Ural State Forest Engineering University Yekaterinburg 620100Russia Botanical Garden Russian Academy of SciencesUral BranchYekaterinburg 620144Russia Department of Remote Sensing and GIS Faculty of GeographyUniversity of TehranTehran 14155-6619Iran Research Center of Forestry Remote Sensing and Information Engineering Central South University of Forestry and TechnologyChangsha 410004China Beijing Key Laboratory of Precision Forestry Forestry CollegeBeijing Forestry UniversityBeijing 100083China

A comparative discussion of the advantages and disadvantages of natural stands and plantations,including in terms of their productivity and stability,began from the moment of the first forest plantings and continues to this *** the context of the progressive replacement of natural forests by plantations due to deforestation,the question of how will change the carbon storage capacity of forest cover when replacing natural forests with artificial ones in a changing climate becomes extremely *** article presents the first attempt to answer this question at the transcontinental level on a special case for two-needled pine trees(subgenus Pinus L.).The research was carried out using the database compiled by the authors on the single-tree biomass structure of forest-forming species of Eurasia,in particular,data of 1880 and 1967 of natural and plantation trees,***-factor regression models are calculated after combining the matrix of initial data on the structure of tree biomass with the mean January temperature and mean annual precipitation,and their adequacy indices allow us to consider them *** is found that the aboveground and stem biomass of equal-sized and equal-aged natural and plantation trees increases as the January temperature and precipitation *** pattern is only partially valid for the branches biomass,and it has a specific character for the foliage *** biomass of all components of plantation trees is higher than that of natural trees,but the percent of this excess varies among different components and depends on the level of January temperatures,but does not depend at all on the level of annual precipitation.A number of uncertainties that arose during the modeling process,as well as the preliminary nature of the obtained regularities,are noted.

关键词： two-needled pine trees natural stands and plantations regression models biomass equations mean January temperature annual precipitation

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