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A stochastic based approach for a new site classification method:application to the Algerian seismic code

Earthquake Engineering and Engineering Vibration 2015年第4期14卷 663-681页

作者： Mohamed Beneldjouzi nasser Laouami Civil Engineering Faculty University of Sciences and Technology Houari Boumediene Earthquake Engineering Applied Research Center (CGS)

Building codes have widely considered the shear wave velocity to make a reliable subsoil seismic classification, based on the knowledge of the mechanical properties of material deposits down to bedrock. This approach has limitations because geophysical data are often very expensive to obtain. Recently, other alternatives have been proposed based on measurements of background noise and estimation of the H/V amplification curve. However, the use of this technique needs a regulatory framework before it can become a realistic site classification procedure. This paper proposes a new formulation for characterizing design sites in accordance with the Algerian seismic building code (RPA99/ver.2003), through transfer functions, by following a stochastic approach combined to a statistical study. For each soil type, the deterministic calculation of the average transfer function is performed over a wide sample of 1-D soil profiles, where the average shear wave (S-W) velocity, Vs, in soil layers is simulated using random field theory. Average transfer functions are also used to calculate average site factors and normalized acceleration response spectra to highlight the amplification potential of each site type, since frequency content of the transfer function is significantly similar to that of the H/V amplification curve. Comparison is done with the RPA99/ver.2003 and Eurocode8 (EC8) design response spectra, respectively. In the absence of geophysical data, the proposed classification approach together with micro-tremor measures can be used toward a better soil classification.

关键词： random field transfer function soil classification RPA99/ ver. 2003 EC8 site factor response spectrum

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Ocular manifestations of children with atopic dermatitis in Saudi Arabia

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International Journal of Ophthalmology(English edition) 2023年第5期16卷 787-793页

作者： Lina Hassan Raffa Tala Musa Roblah nasser Talal Balbaid Bader Sameer Zimmo Mahmood Jameel Showail Department of Ophthalmology King Abdulaziz University HospitalJeddahSaudi Arabia Faculty of Medicine King Abdulaziz UniversityJeddahSaudi Arabia Department of Dermatology King Abdulaziz University HospitalJeddahSaudi Arabia

AIM:To examine the incidence of ocular abnormalities in children with atopic dermatitis(AD)in Saudi Arabia and its association with the severity of ***:This is a cross-sectional study on 50 children with AD who were between 5 and 16 years of *** severity of AD was evaluated using the SCORing Atopic Dermatitis(SCORAD)*** the children underwent slit lamp exams,visual acuity assessment,intraocular pressure measurement,and corneal *** children were considered to have an ophthalmic abnormality if one or more of the following signs were present:glaucoma,keratoconus suspicion,in addition to lid,conjunctival,corneal,lenticular,or retinal ***:Based on the SCORAD severity index,14%of children had mild AD(7/50),38%had moderate AD(19/50),and nearly half had severe *** than half the children exhibited facial involvement,and half had peri-orbital *** mean SCORAD index was *** mean age was 10.48±3.6y,and the cohort showed a slight male predominance(54%males).Both eyes of the 50 children in the cohort were *** on the ocular examinations,92%of the patients showed ocular abnormalities:lid abnormalities(27/50)followed by keratitis(22/50).Four patients had moderate risk for keratoconus in one eye and eight patients were suspected to have ***,SCORAD severity index was not associated with age,sex,or the number or presence of ophthalmic ***:This is the first study in Saudi Arabia to evaluate the prevalence of ocular manifestations in children with *** results indicate that the majority of children with AD have ocular abnormalities that mainly include lid *** on these findings,larger scale studies are needed to affirm whether regular screening for ophthalmic abnormalities would be beneficial for children with AD in terms of early intervention and prevention of sight-threatening complications.

关键词： atopic dermatitis children eczema keratoconus ocular disease ophthalmic abnormalities prevalence SCORAD

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A Favorable Base

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ChinAfrica 2022年第7期14卷 48-49页

作者： nasser BOUCHIBA Africa-China Cooperation Association for Development

Casablanca Finance City is a frontrunner among African financial centers,particularly for Chinese companies,due to its favorable business climateBorn in 2010 from the vision of King Mohammed VI,the Casablanca Finance City(CFC) is an economic and financial hub that is growing in importance."The objective of this initiative is to position Morocco at the forefront of emerging nations in Africa,"

关键词： companies financial centers

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A global overview of the most important zoonotic bacteria pathogens transmitted from Rattus norvegicus to humans in urban environments

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Infectious Medicine 2022年第3期1卷 192-207页

作者： Sahar Sabour Taher Azimi Ahmad nasser Nahal Hadi Amin Mohsenzadeh Aref Shariati Department of Microbiology Faculty of MedicineAhvaz Jundishapur University of Medical SciencesAhvazIran Department of Bacteriology&Virology School of MedicineShiraz University of Medical ScienceShirazIran Department of Pathobiology School of Public HealthTehran University of Medical SciencesTehranIran Department of Microbiology Ardabil BranchIslamic Azad UniversityArdabilIran Molecular and medicine research center Khomein University of Medical SciencesKhomeinIran

Zoonotic pathogens,comprising over 61%of all pathogenic microorganisms,can be transmitted from different animals to individuals in numerous ways either in the presence or the absence of a *** new emerging human infectious diseases,these pathogens could be categorized into 4 groups,bacteria,viruses,parasites,and *** the wide range of reservoirs for zoonotic pathogens,tremendous attention has been attracted to wild rats,due to their global distribution not only in urban environments but also in the sylvatic and agricultural *** the nonce,zoonotic bacteria transmitted via wild rats have turned into a global public health problem probably due to their ability to induce re-emerging diseases even after eradication and controlling *** the importance of wild rats in spreading pathogens,little data are available about the bacterial diversity present in urban wild rat *** this review,we present a complete list of zoonotic bacterial pathogens isolated from wild rats in urban environments.

关键词： Zoonosis Bacterial diseases Zoonotic diseases Wild rats Rattus rattus

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White biotechnology and the production of bio-products

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Systems Microbiology and Biomanufacturing 2022年第3期2卷 413-429页

作者： Masoumeh Kordi Robab Salami Parisa Bolouri nasser Delangiz Behnam Asgari Lajayer Eric D.van Hullebusch Department of Plant Sciences and Biotechnology Faculty of Life Sciences&BiotechnologyShahid Beheshti UniversityTehranIran Department of Genetic and Bioengineering BiotechnologyYeditepe UniversityIstambulTurkey Department of Plant Biotechnology and Breeding Faculty of AgricultureUniversity of TabrizTabrizIran Department of Soil Science Faculty of AgricultureUniversity of TabrizTabrizIran Institut de Physique du Globe de Paris CNRSUniversitéde Paris75005 ParisFrance

White biotechnology uses enzymes and microorganisms to produce value-added chemicals from renewable *** biotechnology provides valuable components for the food,pharmaceutical,agricultural sectors as well as other *** diversity in fungi,yeast,and bacteria can be exploited to produce food additives and other industrial *** is an interesting topic for those interested in screening and metabolic testing of microorganisms,industrial biotechnology,fermentation technology,and the biological products research *** use of microbial-derived compounds has a long history in the food industry,and compounds such as flavorings,essential amino acids,poly-unsaturated fatty acids,organic acids,gelling,*** be obtained from microbial ***,the role of microbes in human health and well-being cannot be *** produce primary metabolites such as vitamins,nucleotides,and amino acids,as well as secondary *** secondary metabolites are used to make many *** agriculture,microbes are also used to make fertilizers and biological *** paper reviews the types of bio-products obtained through biotechnology and the barriers and challenges of white biotechnology.

关键词： Microorganisms Biotechnology Industry Food Pharmaceutical White biotechnology

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FRACTIONAL HALANAY INEQUALITY AND APPLICATION IN NEURAL NETWORK THEORY

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Acta Mathematica Scientia 2019年第6期39卷 1605-1618页

作者： nasser-eddine TATAR King Fahd University of Petroleum and Minerals Department of Mathematics and Statistics

The (integer order) Halanay inequality with distributed delays is extended to the fractional order case. It is proved that solutions decay to zero as a Mittag-Leffler function as time goes to infinity provided that the delay feedback are bounded by similar *** application to a problem arising in neural network theory is provided showing that the equilibrium is Mittag-Leffler stable.

关键词： Hopfield neural network Mittag-Leffler stability Caputo fractional derivative fractional Halanay inequality

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Vers une convergence des intérêts avecd'a:utres pays

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今日中国（法文版） 2022年第11期60卷 42-43页

作者： nasser BOUCHIBA I'Association de Cooperation Afrique-Chine pour le Developpement

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Composition analysis and antimicrobial activity of essential oil from leaves of Laurus nobilis grown in Oman

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Journal of Bioresources and Bioproducts 2022年第4期7卷 328-334页

作者： Siham Saleh Al-Abri Sadri Abdullah Said Salem Said Al Touby Mohammed Amzad Hossain Jamal nasser Al-Sabahi School of Pharmacy College of Pharmacy and NursingUniversity of NizwaPB 33PO 616NizwaNizwa 616Oman School of Nursing College of Pharmacy and NursingUniversity of NizwaNizwa 616Oman Central Instrument Laboratory College of Agriculture and Marine SciencesSultan Qaboos UniversityMuscat 123Oman

Traditionally,Laurus nobilis is used for the treatment of earaches and skin rashes as well as *** most common technique to isolate the oil is hydro-distillation and *** investigation presented in this paper was aimed to unravel the antimicrobial activity and chemical composition of essential oil in the leaves of *** grown in *** essential oil was extracted from the leave of the selected plant species by hydro distillation using Clevenger type *** antimicrobial assay was done by disc diffusion methods against three bac-terial strains,Staphylococcus aureus,Pseudomonas aeruginosa and Escherichia coli,and one fungal strain:Candida *** isolated essential oil was analyzed by gas chromatography-mass spectrometry(GC-MS).The percentage yield of the essential oil was 0.064%(w/w).The essen-tial oil was found actively against the applied bacterial and fungal *** highest activity was found against *** and the lowest was against ***,and the order was ***>***>*** essential oil was also active against the fungus *** range of inhibition zones was 6-14 *** results of GC-MS analysis showed(E)-𝛽-caryophyllene to be the major component about 59.62%.Other major components included𝛼-selinene(14.03%),𝛼-humulene(8.65%),𝛽-selinene(4.99%),and𝛼-pinene(4.98%).In addition,several minor com-ponents were found in the essential oil of *** on the experimental results,it showed that the plant species that grown in Oman were a potential source of therapeutic *** con-clusion,the essential oil and the plant could be used as natural and potential therapeutic agents to treat earaches,skin rashes,and rheumatism.

关键词： Laurus nobilis Clevenger apparatus Essential oil Antimicrobial activity Gas chromatography-mass spectrometry(GC-MS)

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Copper release and ROS in antibacterial activity of Ti-Cu alloys against implant-associated infection

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Rare Metals 2023年第6期42卷 2007-2019页

作者： Hai-Lin Yang Ling Zou Akram nasser Juaim Chen-Xu Ma Meng-Zhen Zhu Fei Xu Xiao-Na Chen Yin-Zhou Wang Xiong-Wen Zhou State Key Laboratory of Powder Metallurgy Central South UniversityChangsha410083China National Clinical Research Center for Geriatric Disorders Xiangya HospitalCentral South UniversityChangsha410008China Department of Prosthodontics Center of StomatologyXiangya HospitalCentral South UniversityChangsha410008China Department of Oral Implantology Xiangya Stomatological Hospital and Xiangya School of StomatologyCentral South UniversityChangsha410008China Department of Prosthodontics Faculty of DentistryThamar UniversityDhamarYM999101Yemen Center of Stomatology Xiangya HospitalCentral South UniversityChangsha410008China

Enhancing the antibacterial properties of the currently used implant materials is a major concern of healthcare providers to minimize the impact of peri-implant infection and improve implant survival *** this study,titanium-copper sintered alloys(3 wt% and 5 wt%Cu) were developed for medical implant *** phase identification,microstructure,copper ions release,and wettability of these alloys were evaluated using X-ray diffraction(XRD),optical microscope(OM),scanning electron microscope(SEM),transmission electron microscope(TEM),energy-dispersive X-ray spectroscope(EDS),inductively coupled plasma spectroscope(ICP) and drop shape *** antibacterial activities of Ti-Cu alloys against Porphyromonas gingivalis and Streptococcus mutans were evaluated using inhibition zone assay,plate counting assay,live/dead fluorescent staining,SEM and reactive oxygen species(ROS) staining *** results demonstrated that Ti-Cu alloys are composed of α-Ti and Ti_(2)Cu phases that increased with increased Cu content of the ***-Cu alloys exhibited antibacterial activity against both bacteria species in a time-dependent *** antibacterial rates of Ti-3Cu and Ti-5Cu after72 h were 57% and 70% against Porphyromonas gingivalis and 63% and 78% against Streptococcus mutans,*** highest amount of Cu^(2+) released from these alloys was 0.3 mg·L^(-1) during the first 24 h,within the safe *** copper ions release and ROS production were suggested as the main antibacterial ***,Ti-Cu sintered alloys are promising materials for dental and orthopedic implants.

关键词： Titanium-copper alloy Antibacterial Dental implant Ti_(2)Cu Copper release

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A framework for an integrated unified modeling language

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Frontiers of Information Technology & Electronic Engineering 2016年第2期17卷 143-159页

作者： Mohammad ALSHAYEB nasser KHASHAN Sajjad MAHMOOD Information and Computer Science Department King Fahd University of Petroleum and Minerals

The unified modeling language(UML) is one of the most commonly used modeling languages in the software *** simplifies the complex process of design by providing a set of graphical notations,which helps express the objectoriented analysis and design of software *** UML is applicable to different types of systems,domains,methods,and processes,it cannot express certain problem domain ***,many extensions to UML have been *** this paper,we propose a framework for integrating the UML extensions and then use the framework to propose an integrated unified modeling language-graphical(iUML-g) ***-g integrates the existing UML extensions into one integrated *** includes an integrated diagram for UML class,sequence,and use case *** proposed approach is evaluated using a case *** proposed iUML-g is capable of modeling systems that use different domains.

关键词：统一建模语言框架 UML扩展图形符号设计过程 UML类图软件行业软件项目

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