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On the Second Order Optimality Conditions for Optimization Problems with Inequality Constraints

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Open Journal of Optimization 2013年第4期2卷 109-115页

作者： mourad Naffouti Department of Mathematics Faculty of Science Mathematics Physics and Natural of Tunis Tunis Tunisia

A nonlinear optimization problem (P) with inequality constraints can be converted into a new optimization problem (PE) with equality constraints only. This is a Valentine method for finite dimensional optimization. We review second order optimality conditions for (PE) in connection with those of (P). A strictly complementary slackness condition can be made to get the property that sufficient optimality conditions for (P) imply the same property for (PE). We give some new results (see Theorems 3.1, 3.2 and 3.3) .Without any assumption, a counterexample is given to show that these conditions are not equivalent.

关键词： Optimality Conditions Constraint Qualifications Copositivity

External Bacterial Flora and Antimicrobial Susceptibility Patterns of Staphylococcus spp. and Pseudomonas spp. Isolated from Two Household Cockroaches, Blattella germanica and Blatta orientalis

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Biomedical and Environmental Sciences 2015年第4期28卷 316-320页

作者： MENASRIA Taha TINE Samir MAHCENE Djaouida BENAMMAR Leyla MEGRI Rochdi BOUKOUCHA mourad DEBABZA Manel Department of Natural and Life Sciences Faculty of Exact Sciences and Natural and Life Sciences University of Tebessa Department of Natural and Life Sciences Faculty of Sciences University of Batna Public Health Establishment

A study was performed to estimate the prevalence of the external bacterial flora of two domestic cockroaches （Blattella germanica and Blatta orientalis） collected from households in Tebessa （northeast AIgeria）.Three major bacterial groups were cultured （total aerobic, enterobacteria, and staphylococci） from 14 specimens of cockroaches, and antibiotic susceptibility was tested for both Staphylococcus and Pseudomonas isolates. Culturing showed that the total bacterial load of cockroaches from different households were comparable （P〈0.001） and enterobacteria were the predominant colonizers of the insect surface, with a bacterial load of （2.1×10^5 CFU/insect）, whereas the staphylococci group was the minority. Twenty-eight bacterial species were isolated, and susceptibility patterns showed that most of the staphylococci isolates were highly susceptible to chloramphenicol, gentamycin, pristinamycin, ofloxacin, clindamycin, and vancomycin; however, Pseudomonas strains exhibited resistance to amoxicillin/clavulanic acid, imipenem, and the second-generation antibiotic cephalosporin cefuroxime.

关键词： External Bacterial Flora and Antimicrobial Susceptibility Patterns of Staphylococcus spp Isolated from Two Household Cockroaches and Pseudomonas spp

Exploration and Mapping of Metalliferous Black Shales in the Saghro Temporary Subsidence Zones (Anti-Atlas, Morocco)

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Open Journal of Geology 2023年第7期13卷 740-762页

作者： Ali Bouayachi Saida Alikouss Zouhir Baroudi Youssef Zerhouni Lahcen Rakhis Mohammed Zouhair Assia Idrissi mourad Essalhi Barzouk Abdelhafed Department of Geology Faculty of Sciences Ben M’Sik University Hassan II Casablanca Morocco MANAGEM Group 191 bd Med Zerktouni Twin Center Tour A. 20100 Casablanca Morocco Department of Geology Faculty of Sciences University Mohamed V Rabat Morocco Faculty of Sciences and Techniques University Molay Ismail Errachidia Morocco Faculty of Sciences Semlalia Caddi Ayyad University Marrakech Morocco

The Saghro massif constitutes a vast metallogenic province with numerous deposits and shows of base metals (lead, zinc, copper) and precious metals (gold and silver), besides various useful substances (talc, pyrophyllite, barite, fluorite). Silver/lead occurrences are concentrated along the Cryogenian Imiter series and moderately at Boumalne and Sidi Flah. Copper occupies the plutonic intrusions and intrusive rocks of the East-Central Saghro while barite deposits are widespread throughout the Cambrian cover of the East Saghro in contact with the Ediacaran basement. To justify this distribution, the new contributions of the cartography and the organic geochemistry of the black shales of Jbel Saghro have clearly shown the particularity of the Imiter black shales in terms of the richness in organic matter (TOC = 0.18%), the blackish color and the friability. The Boumalne and Sidi Flah groups present some similarities with the Imiter group, such as the sub-equatorial structuring, the friable pelites and the richness in organic matter (Boumalne TOC = 0.11% and SidiFlah TOC = 0.16%), which is a quite good show that requires to reinforce the exploration works. For Western Saghro in the Iknioun and Qalaa’t M’Gouna groups, the variations in the thickness of the volcanic cover show an irregular paleotopography with hard, greenish, organic-poor pelitic sediments (TOC = 0.01 to 0.04%). We can conclude that the formation of Imiter-type silver concentrations requires the combination of the sedimentological, the volcanic and structural factors. For Imiter-type silver these factors are: a fine pelitic and argillic casing deposited in a confined environment, a basic volcanism source of metals and other intermediate to acid generated by the hydrothermalism and heat, a convenable paleotopography and a network of fracturations to trap the mineralizations.

关键词： Saghro Metallic Shales Silver TOC Exploration Cryogenic Polymetallic Imiter

Situation of the Technical and Financial Assistance According to Farms Opinions in Some Mountainous Regions of Tlemcen Province (Algeria)

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Agricultural Sciences 2016年第5期7卷 315-321页

作者： mourad Hattab Abdelaziz Gaouar Department of Agronomy Faculty of Natural and Life Sciences and of Earth and Universe Sciences P&#244le la Rocade N° 2 University of Tlemcen Tlemcen Algeria

The technical and financial assistance plays a fundamental role in agriculture in order to maintain its durability especially in disadvantaged regions. For this purpose, the present work aims to evaluate the technical and financial assistance according to the opinions of farms in some mountainous areas belonging to the mountains of Tlemcen wihch are situated in the north-western Algeria. The results obtained showed that to improve the relation between bank and farms, public financial institutions should review the conditions for bank credits granting according to sociological particularity of the Algerian population who is very attached to the instructions of Islam religion which prohibits interest rates generated by bank credits. In addition, strengthening these mountainous areas by qualified technical personnel is a necessary operation to improving the knowledge and the know-how of farmers which are very insufficient in these areas.

关键词： Bank Credit Technical Advices Know-How Mountainous Areas Tlemcen

Erratum to “Indium doping effect on properties of ZnO nanoparticles synthesized by sol-gel method”

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Chinese Physics B 2020年第3期29卷 496-496页

作者： S mourad J El Ghoul K Omri K Khirouni Laboratory of Physics of Materials and Nanomaterials Applied at Environment(LaPhyMNE) Faculty of Sciences in GabesGabes University6072 GabesTunisia Imam Mohammad Ibn Saud Islamic University(IMSIU) College of SciencesDepartment of PhysicsRiyadh 11623Saudi Arabia

Figure 2 in our original paper [Chin. Phys. B 28 047701(2019)] was downloaded by default. We present the correct figure in this erratum.

关键词： In-doped ZnO nanoparticles sol-gel process structural and optical characterization

Haemophagocytic lymphohistiocytosis secondary to Plasmodium falciparum malaria: Case report and review of the literature

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Asian Pacific Journal of Tropical Medicine 2020年第10期13卷 467-471页

作者： Fatma Hammami Makram Koubaa mourad Chaari Rim Chaabouni Abrakhom Zeyni Khaoula Rekik Fatma Smaoui Mounir Ben Jemaa Infectious Diseases Department Hedi Chaker University HospitalUniversity of SfaxTunisia Hematology Laboratory Hedi Chaker University HospitalUniversity of SfaxTunisia

Rationale:Haemophagocytic lymphohistiocytosis is a rare complication of malaria,which is often *** concerns:A 30-year-old male was admitted to our department for persistent fever,which began after returning from a stay in *** laboratory investigations revealed a pancytopenia and an elevated C-reactive *** smear examination showed Plasmodium falciparum,therefore confirming the diagnosis of *** laboratory tests showed a worsening *** marrow aspiration and biopsy revealed images of ***:The diagnosis of haemophagocytic lymphohistiocytosis complicating malaria infection was ***:The patient was treated with *** immunosuppressant treatment was delivered to the *** received antipyretic and antimalarial treatment *** and lessons:We report a case of haemophagocytic lymphohistiocytosis trigged by malaria infection and we review all reported cases secondary to Plasmodium falciparum malaria by searching PubMed publications till October *** lymphohistiocytos secondary to malaria should be suspected even in non-severe cases of malaria.

关键词： Diagnosis Haemophagocytic lymphohistiocytosis Malaria Plasmodium falciparum

Antimicrobial activity of some essential oils against oral multidrugresistant Enterococcus faecalis in both planktonic and biofilm state

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Asian Pacific Journal of Tropical Biomedicine 2014年第6期4卷 463-472页

作者： Fethi Benbelaid Abdelmounaim Khadir Mohamed Amine Abdoune mourad Bendahou Alain Muselli Jean Costa Laboratory of Applied Microbiology in Food Biomedical and Environment(LAMAABE)Aboubekr Belkaid University Laboratory of Natural Products Chemistry University of CorsicaUMR CNRS 6134Campus GrimaldiBP 5220250 CorteFrance

Objective:To evaluate some essential oils in treatment of intractable oral infections,principally caused by hiofilm of multidrug-resistant Enterococcus faecalit(***),such as persistent endodontic infections in which their treatment exhibits a real challenge for ***:Ten chemically analyzed essential oils by gas chromatography-mass spectrometry were evaluated for antimicrobial activity against sensitive and resistant clinical strains of *** in both planktonic and hiofilm state using two methods,disk diffusion and broth ***:Studied essential oils showed a good antimicrobial activity and high ability in *** biofilm eradication,whether for sensitive or multidrug-resistant strains,especially those of Origanum glandulosum and Thymbra capitata with interesting minimum inhibitory concentration,biofilm inhibitory concentration,and biofilm eradication concent ration values which doesn't exceed 0.063%,0.75%,and 1.5%,***:Findings of this study indicate that essential oils extracted from aromatic plants can be used in treatment of intractable oral infections,especially caused by biofilm of multidrugresistant ***.

关键词： Bacterial infections Biofilm Enterococcus faecalis Essential oils Multidrug-resistance

Empirical Analysis of Object-Oriented Design Metrics for Predicting Unit Testing Effort of Classes

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Journal of Software Engineering and Applications 2012年第7期5卷 513-526页

作者： mourad Badri Fadel Toure Software Engineering Research Laboratory Department of Mathematics and Computer Science University of Quebec Trois- Rivières Canada Software Engineering Research Laboratory Department of Mathematics and Computer Science University of Quebec Trois-Rivières Canada

In this paper, we investigate empirically the relationship between object-oriented design metrics and testability of classes. We address testability from the point of view of unit testing effort. We collected data from three open source Java software systems for which JUnit test cases exist. To capture the testing effort of classes, we used metrics to quantify the corresponding JUnit test cases. Classes were classified, according to the required unit testing effort, in two categories: high and low. In order to evaluate the relationship between object-oriented design metrics and unit testing effort of classes, we used logistic regression methods. We used the univariate logistic regression analysis to evaluate the individual effect of each metric on the unit testing effort of classes. The multivariate logistic regression analysis was used to explore the combined effect of the metrics. The performance of the prediction models was evaluated using Receiver Operating Characteristic analysis. The results indicate that: 1) complexity, size, cohesion and (to some extent) coupling were found significant predictors of the unit testing effort of classes and 2) multivariate regression models based on object-oriented design metrics are able to accurately predict the unit testing effort of classes.

关键词： Software Testability Unit Testing Testing Effort Metrics Relationship Prediction and Empirical Analysis

Synthesis and characterization of poly(2,5-diyl pyrrole-2-pyrrolyl methine)semiconductor copolymer

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Journal of Semiconductors 2018年第10期39卷 10-16页

作者： Hammou Gherras Ahmed Yahiaoui Aicha Hachemaoui Abdelkader Belfedal Abdelkader Dehbi Abdel-Hamid I.mourad Laboratoire de chimie Organique Macromoleculaire et des Materiaux(LCOMM)Universite de MascaraFaculte des Sciences ExactesBP 763 Mascara 29000Algeria Laboratoire de Chimie Physique des Macromolecules et Interfaces Biologiques Universite de Mascara Algeria Laboratoire de Genie Physique Universite d'Ibn KhaldounTiaret BP 78 14000 TiaretAlgeria Mechanical Engineering Department College of EngineeringUnited Arab Emirates UniversityAl-AinUAE On leave from Mechanical Design Department Faculty of EngineeringHelwan UniversityCairoEgypt

The proposed technique to synthesise poly {（2,5-diyl pyrrole）（2-pyrrolyl methine）}（PPPM） copolymer by condensation of pyrrole and pyrrole-2-carboxaldehyde monomers catalyzed by Maghnite-H＋ is *** protons are exchanged with Maghnite-H＋, which is available in the form of a montmorillonite silicate clay sheet. The effect of several parameters such as time and temperature of copolymerization, [pyrrole]/[pyrrole-2-carboxaldehyde] molar ratio, amount of Maghnite-H＋, and solvent on the produced poly（2,5-diyl pyrrole-2-pyrrolyl methine） semiconductor copolymer material（yield%） was investigated. The synthesized PPPM copolymer was characterized using nuclear magnetic resonance, Fourier transform infrared, and ultraviolet-visible *** results show that the synthesized copolymer using the copolymerization technique is a real organic copolymer consisting of two monomers units（i.e, pyrrole and pyrrole-2-carboxaldehyde）. Also, the synthesized copolymer is more soluble than polypyrrole in most of the commonly used organic solvents. Hence, copolymerization of pyrrole with pyrrole-2-carboxaldehyde will overcome the insolubility of polypyrrole. In addition, the resultant copolymer exhibits good film formability. The produced copolymer has several potential applications in the field of rechargeable batteries, sensors, capacitors, light emitting diodes, optical displays, and solar cells.

关键词： proposed technique Maghnite-H^+ catalyst conducting PPPM copolymer pyrrole pyrrole-2-carboxaldehyde