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Analysis of Genetic Diversity and Relationships in a Tunisian Fig （Ficus carica） Germplasm Collection by Random Amplified Microsatellite Polymorphisms

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Journal of Integrative Plant Biology 2007年第3期49卷 386-391页

作者： Khaled Chatti Olfa Saddoud amel Salhi-Hannachi Messaoud Mars Mohamed Marrakchi Mokhtar Trifi Laboratory of Molecular Genetics Immunology and Biotechnology Faculty of Sciences Campus University 2092 EI Manar Tunis Tunisia High Institute of Breeding and Horticulture 4042 Chott Mariem Sousse Tunisia

The random amplified mirosatellite polymorphism method was performed in a set of Tunisian fig landraces using eighteen primer combinations. A total of sixty three random amplified microsatellite polymorphism （RAMPO） markers were scored and used either to assess the genetic diversity in these cultivars or to detect cases of mislabeling. Opportunely, data proved that the designed procedure constitutes an attractive and fast method with low costs and prevents radio exposure. As a result, we have identified the primer combinations that are the most efficient to detect genetic polymorphism in this crop. Therefore, the derived unweighted pair-group method with arithmetic averages （UPGMA） dendrogram illustrates the genetic divergence among the landraces studied and exhibits a typically continuous variation. Moreover, no evident correlation between the sexes of trees was observed. In addition, using these markers, discrimination between landraces has been achieved. Thus, random amplified mirosatellite polymor- phism is proved to be powerful for characterizing the local fig germplasm.

关键词： collection Ficus carica genetic diversity germplasm random amplified microsatellite polymorphism Tunisia

Toward a nonlinear control of an AC-DC-PWM converter dedicated to induction heating

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Frontiers in Energy 2013年第2期7卷 140-145页

作者： amel HADRI-HAMIDA S. ZEROUALI A. ALLAG Department of Electrical Engineering LEC Laboratory ConstantineUniversity Constantine 25000 Algeria Department of Electrical Engineering LMSE Laboratory BiskraUniversity Biskra 07000 Algeria

In this paper, a applied to an AC-DC-pulse nonlinear control strategy width modulation （PWM） converter is developed and simulated. First a nonlinear system modeling is derived with state variables of the input current and the output voltage by using power balance of the input and output. The system is linearized and decoupled, and then a state feedback law is obtained. For robust control of parameter perturbation, integrators are added to the exact feedback control law. The simulation is provided to verify the validity of the control algorithm.

关键词： DC-DC converter AC-DC-pulse width mod-ulation (PWM) converter induction heating nonlinearcontrol

Human intestinal Caco-2 cell model to evaluate the absorption of 7-ketophytosterols and their effects on cholesterol transport

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Food Science and Human Wellness 2023年第5期12卷 1701-1707页

作者： Mengmeng Wang Min Yu amel Thanina Amrouche Fan Jie Shengyang Ji Baiyi Lu National Engineering Laboratory of Intelligent Food Technology and Equipment Key Laboratory for Agro-Products Postharvest Handling of Ministry of Agriculture and Rural AffairsKey Laboratory for Agro-Products Nutritional Evaluation of Ministry of Agriculture and Rural AffairsZhejiang Key Laboratory for Agro-Food ProcessingFuli Institute of Food ScienceCollege of Biosystems Engineering and Food ScienceZhejiang UniversityHangzhou 310058China Pharmaceutical Informatics Institute College of Pharmaceutical SciencesZhejiang UniversityHangzhou 310058China

7-Ketophytosterols are the major oxidation products of phytosterols in foods, which have been associated with atherosclerosis. However, their absorption mechanism remains unclear. The aim of our work was to investigate the absorption mechanism of 7-ketophytosterols and their effects on the cholesterol transport using Caco-2 cell model. The absorption percentage of 7-ketositosterol and 7-ketocampesterol was 1.16%-1.68% and 1.18%-2.23% respectively in the Caco-2 model, which is higher than that of their parent phytosterols, but lower than cholesterol-d7. The apparent permeability of 7-ketositosterol and 7-ketocampesterol at 30 μmol/L in the basolateral(BL)-to-apical(AP)direction were 0.42-and 0.55-fold of that in the AP-to-BL direction, indicating an active intake in the permeation mechanism of 7-ketophytosterols. Ezetimibe could significantly inhibit the transport of 7-ketophytosterols(P < 0.05), which means that their transport depends on niemann-pick c1-like 1(NPC1L1)protein. The transport of cholesterol-d7 was significantly inhibited by 7-ketophytosterols(P < 0.05). Taken together, this study deepened our understanding of the absorption mechanism of common food-born 7-ketophytosterols and provides useful information on the inhibition of 7-ketophytosterols absorption.

关键词： 7-Ketophytosterols Absorption mechanism Cholesterol absorption Niemann-pick c1-like 1

Geochemical Record of the Cenomanian-Turonian Anoxic Event in Tunisia:Is it Correlative and Isochronous to the Biotic Signal?

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Acta Geologica Sinica(English Edition) 2011年第6期85卷 1310-1335页

作者： Mohamed SOUA Dalila ZAGHBIB-TURKI Hela BEN JEMIA Jalel SMAOUI amel BOUKADI Exploration and Studies Department Entreprise Tunisienne d'Activités Pétrolières(ETAP) Charguia Ⅱ2035 Tunisia Département of Geology Faculty of sciences of Tunis University of Tunis El Manar1068 Tunisia Petroleum Research and Development Center(CRDP-ETAP) Charguia Ⅱ 2035 Tunisia

In Tunisia, five Bahloul spaced sections, Bargou, Jerisa, Guern Halfaya, Kherij and Gafsa were analyzed for biostratigraphy （foraminifera and radiolarians） and major and trace elements. This high-resolution biostratigraphic and chemostratigraphic integrated analyses for the Late Cenomanian-Early Turonian Bahloul Formation provide new insight into the palaeoceanographic evolution of the southern Tethyan margin. Relative low abundance of related terrigenous Ti/Ai and K/ Al ratios and enrichment of some productivity proxies such as Ba, Cu, and Ni （organic matter related trace elements） suggests that the Bahloul, deposited during a relatively short period （0.5 Ma）, was of relatively elevated primary productivity and minimal detrital input. While higher D＊ values concurrent with lower Ti/AI ratios are interpreted as caused by enhanced fluvial material contribution, due to more humid climate during the OAE-2. Enhanced humidity triggered probably fluvial influxes, resulted in a sluggish water circulation and consequent anoxic/euxinic conditions favoring the preservation of organic matter at the bottom. Enrichments in redox-sensitive trace metals U, V, and Mo in the Bahloul Formation deposits and redox indices, such as V/（V＋Ni）, U/Th, V/Cr, and Ni/Co, indicate that oxygen-restricted conditions prevailed during the Late Cenomanian to earliest Turonian times and correlate well with relative abundances of some foraminiferal and radiolarian paleo- environmental relevant indicators. High Ba~ values and Uauth may indicate anoxic conditions at least at the water-sediment interface during the Bahloul Formation deposition and provide information about low to moderate sulfate-reduction reactions.

关键词： Bahloul Formation Foraminifera chemostratigraphy OAE-2

Rapid increase in numbers and change of land-use in two expanding Columbidae species(Columba palumbus and Streptopelia decaocto)in Algeria

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Chinese Birds 2015年第4期6卷 246-254页

作者： Djamel Bendjoudi Jean-Francois Voisin Salaheddine Doumandji amel Merabet Nassima Benyounes Haroun Chenchouni Department of Biology of Populations and Organisms Faculty of Natural and Life SciencesUniversity of Blida Muséum National d’Histoire Naturelle Department of Agricultural and Forestry Zoology National Superior School of Agronomy(ENSA)-El Harrach Department of Biology Faculty of SciencesUniversity of M’Hamed Bougara Department of Natural and Life Sciences Faculty of Exact Sciences and Natural and Life SciencesUniversity of Tebessa Department of Natural and Life Sciences Faculty of SciencesUniversity of El Hadj Lakhdar

Background: Investigating population ecology of urban bird species,particularly the invasive and expending spe?cies,is the key for the success of urban management and planning ***: Populations of two Columbidae species,the Woodpigeon(Columba palumbus) and the Eurasian Collared Dove(Streptopelia decaocto),were monitored from 1992 to 2010 in the Algiers Sahel,the Mitidja Plain and surround?ing areas(Northern Algeria).Monitoring of species densities was performed by the mapping?plot *** foraging flight routes of Woodpigeon and the distribution of Eurasian Collared Dove were assessed by systematic ***: The number of counted birds was statistically constant at first years of the survey,and then increased sig?nificantly,beginning from low numbers,their densities accelerated sharply between 2001 and 2006,then reached to an equilibrium *** significant increase in Woodpigeon's population could be explained by the reduced hunt?ing pressure and by species adaptation to new food resources provided by nearby ***,monitoring of flight directions of the species revealed the use of agricultural landscapes and habitats,which is a good indicator explaining adaptation and trophic niche of the *** occurrence of the Eurasian Collared Dove in Algiers began in *** density experienced a rapid increase with similar trend pattern as that of *** distributional range is confined mainly in suburban environments of the Mitidja ***: The modifications of habitats,urbanization increase and the lessening of hunting in the Mitidja Plain facilitated the rapid expansion of the Eurasian Collared Dove and Woodpigeon as well contributed to the increase in their numbers over time.

关键词： Columba palumbus Flight routes Mitidja plain Population dynamics Streptopelia decaocto

HybridWatermarking and Encryption Techniques for Securing Medical Images

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Computer Systems Science & Engineering 2023年第7期46卷 403-416页

作者： amel Ali Alhussan Hanaa A.Abdallah Sara Alsodairi Abdelhamied A.Ateya Department of Computer Sciences College of Computer and Information SciencesPrincess Nourah bint Abdulrahman UniversityP.O.Box 84428Riyadh11671Saudi Arabia Department of Information Technology College of Computer and Information SciencesPrincess Nourah bint Abdulrahman UniversityRiyadh84428Saudi Arabia Department of Electronics and Communications Engineering Zagazig UniversityZagazigSharqia44519Egypt

Securing medical data while transmission on the network is required because it is sensitive and life-dependent *** methods are used for protection,such as Steganography,Digital Signature,Cryptography,and *** paper introduces a novel robust algorithm that combines discrete wavelet transform(DWT),discrete cosine transform(DCT),and singular value decomposition(SVD)digital image-watermarking *** host image is decomposed using a two-dimensional DWT(2D-DWT)to approximate low-frequency sub-bands in the embedding *** the sub-band low-high(LH)is decomposed using 2D-DWT to four new *** resulting sub-band low-high(LH1)is decomposed using 2D-DWT to four new *** frequency bands,high-high(HH_(2))and high-low(HL_(2)),are transformed by DCT,and then the SVD is applied to the DCT *** strongest modified singular values(SVs)vary very little for most attacks,which is an important property of SVD *** two watermark images are encrypted using two layers of encryption,circular and chaotic encryption techniques,to increase *** first encrypted watermark is embedded in the S component of the DCT components of the HL_(2)*** second encrypted watermark is embedded in the S component of the DCT components of the HH2 *** suggested technique has been tested against various attacks and proven to provide excellent stability and imperceptibility results.

关键词： Watermarking discrete wavelet transform discrete cosine transform singular value decomposition circular encryption chaotic encryption

Optical Neural Networks:Analysis and Prospects for 5G Applications

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Computers, Materials & Continua 2023年第12期77卷 3723-3740页

作者： Doaa Sami Khafaga Zongming Lv Imran Khan Shebnam M.Sefat amel Ali Alhussan Department of Computer Sciences College of Computer and Information SciencesPrincess Nourah Bint Abdulrahman UniversityP.O.Box 84428Riyadh11671Saudi Arabia School of Information and Finance Xuancheng Vocational&Technical CollegeXuancheng242000China Department of Electrical Engineering University of Engineering and TechnologyP.O.Box 814PeshawarPakistan Islamic University Centre for Scientific Research The Islamic UniversityNajafIraq Department of Computer Science Independent UniversityDhaka1208Bangladesh

With the capacities of self-learning,acquainted capacities,high-speed looking for ideal arrangements,solid nonlin-ear fitting,and mapping self-assertively complex nonlinear relations,neural systems have made incredible advances and accomplished broad application over the final *** one of the foremost conspicuous methods for fake insights,neural systems are growing toward high computational speed and moo control *** to the inborn impediments of electronic gadgets,it may be troublesome for electronic-implemented neural systems to make the strides these two exhibitions *** neural systems can combine optoelectronic procedures and neural organization models to provide ways to break the *** paper outlines optical neural networks of feedforward repetitive and spiking models to give a clearer picture of history,wildernesses,and future optical neural *** framework demonstrates neural systems in optic communication with the serial and parallel *** graphene-based laser structure for fiber optic communication is *** comparison of different balance plans for photonic neural systems is made within the setting of hereditary calculation and molecule swarm *** expansion,the execution comparison of routine photonic neural,time-domain with and without extending commotion is additionally *** challenges and future patterns of optical neural systems on the growing scale and applications of in situ preparing nonlinear computing will hence be uncovered.

关键词： Optoelectronics 5G networks free-space optical transducer neural networks

Space Division Multiple Access for Cellular V2X Communications

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Computers, Materials & Continua 2022年第10期73卷 1195-1206页

作者： Doaa Sami Khafaga Mohammad Zubair Khan Muhammad Awais Javed amel Ali Alhussan Wael Said Department of Computer Sciences College of Computer and Information SciencesPrincess Nourah bint Abdulrahman UniversityP.O.Box 84428Riyadh11671Saudi Arabia Department of Computer Science and Information Taibah University Madinah Saudi Arabia Department of Electrical and Computer Engineering COMSATS University Islamabad45550Pakistan Department of Computer Science Faculty of Computers and InformaticsZagazig UniversityZagazig44511Egypt

Vehicular communication is the backbone of future Intelligent Transportation Systems(ITS).It offers a network-based solution for vehicle safety,cooperative awareness,and traffic management *** safety applications,Basic Safety Messages(BSM)containing mobility information is shared by the vehicles in their neighborhood to continuously monitor other nearby vehicles and prepare a local traffic *** are shared using mode 4 of Cellular V2X(C-V2X)communications in which resources are allocated in an ad hoc ***,the strict packet transmission requirements of BSM and hidden node problem causes packet collisions in a vehicular network,thus reducing the reliability of safety ***,as vehicles choose the transmission resources in a distributed manner in mode 4 of CV2X,the packet collision problem is further *** paper presents a novel solution in the form of a Space Division Multiple Access(SDMA)protocol that intelligently schedules BSM transmissions using vehicle position data to reduce concurrent transmissions from hidden node *** proposed protocol works by dividing road segments into clusters and *** sub-frames are allocated to a cluster and these sub-frames are reused after a certain *** a cluster,sub-channels are allocated to *** implement the proposed SDMA protocol and evaluate its performance in a highway vehicular *** results show that the proposed SDMA protocol outperforms standard Sensing-Based Semi Persistent Scheduling(SB-SPS)in terms of safety range and packet delay.

关键词： ITS vehicular network cellular V2X SDMA

SAFT-VNDN: A Socially-Aware Forwarding Technique in Vehicular Named Data Detworking

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Computers, Materials & Continua 2022年第11期73卷 2495-2512页

作者： amel Boudelaa Zohra Abdelhafidi Nasreddine Lagraa Chaker Abdelaziz Kerrache Muhammad Bilal Daehan Kwak Mohamed Bachir Yagoubi Laboratoire d’Informatique et de Mathématiques UniversitéAmar Telidji de LaghouatLaghouatAlgeria Department of Computer and Electronics Systems Engineering Hankuk University of Foreign StudiesYongin-si17035Gyeonggi-doKorea School of Computer Science and Technology Kean UniversityNJUSA

Vehicular Social Networks(VSNs)is the bridge of social networks and Vehicular Ad-Hoc Networks(VANETs).VSNs are promising as they allow the exchange of various types of contents in large-scale through Vehicle-to-Vehicle(V2V)and Vehicle-to-Infrastructure(V2I)communication *** Named Data Networking(VNDN)is an auspicious communication paradigm for the challenging VSN environment since it can optimize content dissemination by decoupling contents from their physical ***,content dissemination and caching represent crucial challenges in VSNs due to short link lifetime and intermittent connectivity caused by vehicles’high *** aim with this paper is to improve content delivery and cache hit ratio,as well as decrease the transmission delay between *** this regard,we propose a novel hybrid VNDN-VSN forwarding technique based on social communities,which allows requester vehicles to easily find the most suitable forwarder or producer among the community members in their neighborhood ***,we introduce an effective caching mechanism by dividing the content store into two parts,one for community private contents and the second one for public *** results show that our proposed forwarding technique can achieve a favorable performance compared with traditional VNDN,in terms of data delivery ratio,average data delivery delay,and cache hit ratio.

关键词： Vehicular Social Networks(VSNs) Vehicular Named Data Networking forwarding technique social communities