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Corneal biomechanical data and biometric parameters measured with Scheimpflug-based devices on normal corneas

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International Journal of Ophthalmology(English edition) 2017年第2期10卷 217-222页

作者： Gabor Nemeth Eszter Szalai ziad hassan Agnes Lipecz Zsuzsa Flasko Laszlo Modis Department of Ophthalmology Borsod-Abauj-Zemplen County Hospital and University Teaching HospitalMiskolc 3526Hungary Department of Ophthalmology University of DebrecenDebrecen 4032Hungary Orbi-Dent Refractive Surgery and Medical Centre Debrecen 4032Hungary

AIM： To analyze the correlations between ocular biomechanical and biometric data of the eye,measured by Scheimpflug-based devices on healthy ***： Three consecutive measurements were carried out using the corneal visualization Scheimpflug technology（Cor Vis ST） device on healthy eyes and the 10 device-specific parameters were *** HR-derived parameters（corneal curvature radii on the anterior and posterior surfaces;apical pachymetry;corneal volume;corneal aberration data;depth,volume and angle of the anterior chamber） and axial length（AL） from IOLMaster were correlated with the 10 specific CorV is ST ***： Measurements were conducted in 43 eyes of 43 volunteers（age 61.24±15.72y）.The 10 specific Cor Vis ST data showed significant relationships with corneal curvature radii both on the anterior and posterior surface,pachymetric data,root mean square（RMS） data of lower-order aberrations,and posterior RMS of higher-order aberrations and spherical aberration of the posterior *** chamber depth showed a significant relationship,but there were no significant correlations between corneal volume,anterior chamber volume,mean chamber angle or AL and the 10 specific CorV is ST ***： Cor Vis ST-generated parameters are influenced by corneal curvature radii,some corneal RMS data,but corneal volume,anterior chamber volume,chamber angle and AL have no correlation with the biomechan-ical *** parameters measured by CorV is ST seem to refer mostly to corneal properties of the eye.

关键词： anterior segment parameters biomechan-ics corneal visualization Scheimpflug technology OcularResponse Analyzer

Ocular biomechanical measurements on post- keratoplasty corneas using a Scheimpflug-based noncontact device

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International Journal of Ophthalmology(English edition) 2016年第2期9卷 235-238页

作者： Laszlo Modis Jr. ziad hassan Eszter Szalai Zsuzsanna Flasko Andras Berta Gabor Nemeth Department of Ophthalmology University of DebrecenDebrecen H-4032 Hungary Orbi-Dent Health and Laser Center Debrecen H-4032Hungary

AIM： To analyse ocular biomechanical properties, central corneal thickness （CCT） and intraocular pressure （lOP） in post-keratoplasty eyes, as compared to normal subjects, with a new Scheimpflug-based technology. Moreover, biomechanical data were correlated with the size and age of the donor and recipient corneas. METHODS： Measurements were conducted on 46 eyes of 46 healthy patients without any corneal pathology （age： 53.83 ±20.8y） and 30 eyes of 28 patients after penetrating keratoplasty （age： 49.43 ±21.34y）. Ten biomechanical parameters, the CCT and lOP were recorded by corneal visualization Scheimpflug technology （CorVis ST） using high-speed Scheimpflug imaging. Keratometry values were also recorded using Pentacam HR system. Scheimpflug measurements were performed after 43.41± 40.17mo （range： 11-128mo） after the keratoplasty and after 7.64±2.34mo （range： 5-14mo） of suture removal. RESULTS： Regarding the device-specific biomechanical parameters, the highest concavity time and radius values showed a significant decrease between these two groups （P=0.01 and P 〈0.001）. None of other biomechanical parameters disclosed a significant difference. The CCT showed a significant difference between post keratoplasty eyes as compared to normal subjects （P= 0.003） using the CorVis ST device. The lOP was within the normal range in both groups （P=0.84）. There were no significant relationships between the keratometric data, the size of the donor and recipient, age of the donor and recipient and biomechanical properties obtained by CorVis ST. CONCLUSION： The ocular biomechanics remain stable after penetrating keratoplasty according to the CorVis ST measurements. Only two from the ten device-specific parameters have importance in the follow-up period after penetrating keratoplasty.

关键词： corneal visualization Scheimpflugtechnology ocular biomechanics penetrating keratoplasty

Anterior segment parameters associated with extramuscular manifestations in polymyositis and dermatomyositis

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International Journal of Ophthalmology(English edition) 2020年第9期13卷 1443-1450页

作者： Zoltan Griger Katalin Danko Gabor Nemeth ziad hassan Zsuzsa Aszalos Katalin Szabo Levente Bodoki Rudolf Gesztelyi Judit Zsuga Peter Szodoray Adam Kemeny-Beke Division of Clinical Immunology Faculty of MedicineUniversity of DebrecenDebrecen 4032Hungary Department of Ophthalmology Faculty of MedicineUniversity of DebrecenDebrecen 4032Hungary Department of Ophthalmology Borsod-Abauj-Zemplen County Hospital and University Teaching HospitalMiskolc 3526Hungary Orbi-Dent Refractive Surgery and Medical Center Debrecen 4032Hungary Department of Rheumatology Institute of MedicineFaculty of MedicineUniversity of DebrecenDebrecen 4032Hungary Department of Pharmacology and Pharmacotherapy Faculty of MedicineUniversity of DebrecenDebrecen 4032Hungary Department of Health Systems Management and Quality Management in Health Care Faculty of Public HealthUniversity of DebrecenDebrecen 4032Hungary Department of Immunology RikshospitaletOslo University HospitalOslo 0372Norway

AIM:To evaluate detailed anterior segment parameters of patients with idiopathic inflammatory myopathies(IIM),including polymyositis(PM),and dermatomyositis(DM),and to clarify the associations between these data and clinical variables of ***:Totally 57 PM,41 DM patients and 62 controls were enrolled in this cross-sectional,observational,case-control *** study participants underwent Pentacam *** investigations consisted of different antibody assays,while extramuscular clinical assessments included Raynaud’s phenomenon,dysphagia,interstitial lung disease,arthritis/arthralgia,and weight *** signs and subjective symptoms of dry eye disease(DED)were also ***:All pachymetric parameters[center,apex,thinnest and maximal keratometry(Kmax)]and corneal volume(CV)of both sides of PM patients proved to be significantly *** pachymetric data were also noticed as significantly decreased compared to those of *** significant differences were traced between anterior segment values and extramuscular manifestations of myositis,largely in case of arthritis/arthralgia and weight loss,whereas associations between anterior segment parameters and antibodies were *** clinical tests of DED were also significantly decreased in IIM ***:The results suggest that all IIM patients have thinner corneas compared with those of controls,and decreased corneal parameters are significantly associated with the occurrence of some extramuscular *** addition,IIM patients tend to develop objective signs of DED.

关键词： dry eye extramuscular manifestations dermatomyositis polymyositis Scheimpflug imaging

Evolution of blockchain consensus algorithms: a review on the latest milestones of blockchain consensus algorithms

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Cybersecurity 2024年第3期7卷 80-101页

作者： ziad Hussein May A.Salama Sahar A.El-Rahman Electrical Engineering Department Faculty of Engineering-ShoubraBenha UniversityCairoEgypt

Blockchain technology has gained widespread adoption in recent years due to its ability to enable secure and trans-parent record-keeping and data transfer.A critical aspect of blockchain technology is the use of consensus algorithms,which allow distributed nodes in the network to agree on the state of the *** this review paper,we exam-ine various consensus algorithms that are used in blockchain systems,including proof-of-work,proof-of-stake,and hybrid *** go over the trade-offs and factors to think about when choosing a consensus algorithm,such as energy efficiency,decentralization,and *** also look at the strengths and weaknesses of each algorithm as well as their potential impact on the scalability and adoption of blockchain technology.

关键词： Blockchain Consensus Proof of work Proof of stake Decentralization

Physico-chemical properties and macrofauna of soils under various farming systems of cold arid region in Balochistan,Pakistan

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Journal of Mountain Science 2024年第8期21卷 2618-2630页

作者： KHAN Mehmood GUL Shamim KAKAR Hidayatullah PANEZAI Sanaullah KHAN Nayab ziad Tariq NASEEM Mahrukh SHAHEEN Umbreen Department of Botany University of BalochistanQuetta 87300Pakistan Department of Natural Resource Sciences McGill University21111 Lakeshore Road Ste.Anne de BellevueQuébec H9X 3V9Canada Directorate of Agriculture Research Soil and Water TestingAgricultural Research InstituteQuetta 87300Pakistan Department of Geography and Regional Planning University of BalochistanQuetta 87300Pakistan Department of Zoology University of BalochistanQuetta 87300Pakistan

Barshore is a small village in the Pishin District,Balochistan,Pakistan,with dry summers and cold rainy *** is an agrarian region,mostly with orchards of various fruit *** study investigated the physico-chemical properties and macrofauna of soils under various agricultural management practices of this *** concentrations of soil organic matter(SOM),soil organic carbon(SOC),nutrients,pH,electrical conductivity,soil texture,and the abundance and number of species of soil macrofauna of the agricultural fields were *** agricultural fields were *** fields were orchards of apple,apricot or the mixture of apple and apricot trees and one field was a cropland,cultivated with wheat as a *** orchards were under conservation agricultural practices;whereas,the cropland was under conventional *** agricultural lands were 2-26 years *** concentration of soil organic matter(SOM)in the upper 0-10 cm depth of these field sites ranged from 11.6 g kg^(-1)to 32.8 g kg^(-1)*** compared to cropland,orchards had significantly higher concentration of SOM and SOC.A total of 18 soil macrofauna species were found and the most common and abundant were ants(Monomorium minimum,Camponotus pennsylvanicus,Solenopsis invicta,and Lasius niger)followed by Arion ssp.(Brown Slug)and earthworm Lumbricus *** analysis revealed non-significant relationship of the age and the concentration of SOM with the number of macrofauna species and with the concentrations of total mineral nitrogen,bioavailable phosphorus and *** existence of ants had no relationship with the concentration of SOM;whereas,existence of Lumbricus terrestris tended to had a positive relationship with the concentration of *** field of tree-based intercropping system was 2 years of age since the land was converted from rangeland to a cropland,had two ant species *** indicates the positive influence of crop diversification on soil

关键词： Soil organic matter Macrofauna Land use history Tree-based intercropping Conservation agriculture

Unroofed coronary sinus,left-sided superior vena cava and mitral insufficiency:A case report and review of the literature

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World Journal of Cardiology 2024年第10期16卷 595-603页

作者： Fouad Bitar ziad Bulbul Yehya Jassar Rana Zareef Jennifer Abboud Mariam Arabi Fadi Fouad Bitar Department of Pediatric and Adolescent American University of Beirut Medical CenterBeirut 1103Lebanon Department of Surgery American University of Beirut Medical CenterBeirut 1103Lebanon

BACKGROUND Unroofed coronary sinus(UCS)is a rare subtype of atrial septal *** is frequently associated with a persistent left superior vena cava and is often part of a more intricate cardiac *** SUMMARY This report describes a rare case of an adolescent patient with UCS featuring atrial situs solitus,absence of the right superior vena cava and a persistent left superior vena cava draining into the left atrium consistent with total unroofing of the coronary *** was associated with concurrent severe mitral insufficiency secondary to redundant and prolapsing leaflets,and a substantial left-to-right shunt across the coronary sinus orifice.A comprehensive examination of the existing literature is included,shedding light on the diagnostic challenges of UCS and describing the available surgical options within the context of mitral valve *** UCS is a complex condition requiring careful consideration of associated anomalies and a tailored surgical approach.

关键词： Unroofed coronary sinus Mitral insufficiency Single left superior vena cava Surgical options Absent right superior vena cava Case report

老建筑一定要拆除吗?一座海湾城市给出了答案

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商业周刊（中文版） 2024年第6期 39-40页

作者： ziad Daoud 孟洁冰(译) 彭博经济不详

迪拜、科威特和利雅得纷纷拆除历史建筑,为现代摩天大楼让路,但阿联酉的沙迦却采取了不同的做法。20世纪30年代末发现石油后,利雅得和科威特城迅速发展起来,打破了建筑格局。一排排混凝土玻璃造型的建筑从沙漠中拔地而起,取代了传统的... 详细信息

迪拜、科威特和利雅得纷纷拆除历史建筑,为现代摩天大楼让路,但阿联酉的沙迦却采取了不同的做法。20世纪30年代末发现石油后,利雅得和科威特城迅速发展起来,打破了建筑格局。一排排混凝土玻璃造型的建筑从沙漠中拔地而起,取代了传统的泥砖房屋,然中东的拉斯维加斯。迪拜在20世纪60年代发现石油后,也效仿了同样的开发模式。

关键词：建筑格局摩天大楼科威特城海湾城市开发模式拆除拉斯维加斯迪拜

Consistency of the k-Nearest Neighbor Classifier for Spatially Dependent Data

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Communications in Mathematics and Statistics 2023年第3期11卷 503-518页

作者： Ahmad Younso ziad Kanaya Nour Azhari INRAE Institut AgroMISTEAUniversitéMontpellierMontpellierFrance Department of Mathematical Statistics Faculty of SciencesDamascus UniversityDamascusSyria Department of Mathematics Faculty of SciencesTishreen UniversityLattakiaSyria

The purpose of this paper is to investigate the k-nearest neighbor classiﬁcation rule for spatially dependent *** spatial mixing conditions are considered,and under such spatial structures,the well known k-nearest neighbor rule is suggested to classify spatial *** established consistency and strong consistency of the classiﬁer under mild *** main results extend the consistency result in the *** to the spatial case.

关键词： Bayes rule Spatial data Training data k-nearest neighbor rule Mixing condition Consistency

Yellow fever and Hajj： with all eyes on Zika, a familiar flavivirus remains a threat

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Frontiers of Medicine 2016年第4期10卷 527-530页

作者： QantaA. Ahmed ziad A. Memish Division of Pulmonary Disease and Critical Care Medicine Department of Medicine Winthrop University Hospital State University of New York (SUNY) at Stony Brook NY 11790 USA Ministry of Health Riyadh 11514 Kingdom of Saudi Arabia College of Medicine Alfaisal University Riyadh 11533 Kingdom of Saudi Arabia

Hajj is among the world＇s largest mass gatherings, drawing between 2 and 3.5 million Muslims from 183 nations annually to perform pilgrimage in Mecca, Saudi Arabia. Infectious disease outbreaks can be imported both into the Hajj population and exported internationally by returning pilgrims. The domestic Saudi population can also be at risk of outbreaks traveling amid this mass migration. With yellow fever reported for the first time in China following the infection of expatriate Chinese workers in Angola and a full blown outbreak underway in wider West Africa, the prospect of yellow fever outbreaks in Asia threatens to impact Saudi Arabia, both during and beyond the Hajj season. With global focus trained on Zika, the rising threat of yellow fever cannot be overlooked. Strategies to mitigate risk to Saudi Arabia and the global population are thereby suggested.

关键词： yellow fever mass gathering Saudi Arabia Hajj Zika virus