Mostaganem, Algeria

University of Mostaganem

www.univ-mosta.dz
Mostaganem, Algeria

The University of Mostaganem is a university, located in Mostaganem, Algeria.Founded in 1978, it now has some 28,000 students and 830 teaching staff. The institution was formerly an institute of agricultural technology, set up in 1969.It comprises eight faculties and one institute, as follows:- Faculty of science and computing- Faculty of natural science- Faculty of science and technology- Faculty of arts and literature- Faculty of law and politics- Faculty of economics, commerce and management- Faculty of social science- Faculty of medicine- Institute of sport and physical education Wikipedia.

SEARCH FILTERS
Time filter
Source Type

Zhou Y.,Zhejiang Normal University | Gala S.,University of Mostaganem
Zeitschrift fur Angewandte Mathematik und Physik | Year: 2010

In this paper, some improved regularity criteria for the 3D viscous MHD equations are established in multiplier spaces. It is proved that if the velocity field satisfies, or the gradient field of velocity satisfies, then the solution remains smooth on [0, T]. © 2009 Birkháuser Verlag Basel/Switzerland.


Due to constant decrease in farmlands, it is important to identify the best lands useful for sustainable agriculture (productive and profitable agriculture that protects the environment and that is socially equitable). This requirement has resulted in the development of land suitability maps for agriculture by combining several factors of various natures and of differing importance. The integration of MultiCriteria Decision Analysis approaches (MCDA) in a Geographical Information System (GIS) provides a powerful spatial decision support system which offers the opportunity to efficiently produce these land suitability maps. Indeed, GIS is a powerful tool for analyzing spatial data and establishing a process for decision support. Because of their spatial aggregation functions, MCDA methods can facilitate decision making in situations where several solutions are available, various criteria have to be taken into account and decision-makers are in conflict (Dias et al., 2002). The parameters and the classification system used in this work are inspired from the FAO (Food and Agriculture Organization) approach dedicated to a sustainable agriculture. A spatial decision support system has been developed for establishing the land suitability map for agriculture. It incorporates the multicriteria analysis method ELECTRE Tri (ELimitation Et Choix Traduisant la REalité) in a GIS (ArcGIS) within the GIS program package environment. This approach has been tested on the area of Mleta in Algeria. A land suitability map for durum wheat has been produced. Through the obtained results, it appears that ELECTRE Tri method, integrated into ArcGIS 9.2 of ESRI, is better suited to the problem of land suitability for agriculture. The time saving during the development of the land suitability map for the agriculture of the durum wheat was considerable. The coherence of the obtained maps confirms the system effectiveness. © 2012 Elsevier B.V.


Nemmiche S.,University of Mostaganem
Toxicological Sciences | Year: 2017

Changes in the intracellular thiol-disulfide balance are considered major determinants in the redox status/signaling of the cell. Cellular signaling is very sensitive to both exogenous and intracellular redox status and respond to many exogenous pro-oxidative or oxidative stresses. Redox status has dual effects on upstream signaling systems and downstream transcription factors. Redox signaling pathways use reactive oxygen species (ROS) to transfer signals from different sources to the nucleus to regulate such functions as growth, differentiation, proliferation, and apoptosis. Mitogen-activated protein kinases are activated by numerous cellular stresses and ligand-receptor bindings. An imbalance in the oxidant/antioxidant system, either resulting from excessive ROS/reactive nitrogen species production and/or antioxidant system impairment, leads to oxidative stress. Glutathione (GSH) is known to play a critical role in the cellular defense against unregulated oxidative stress in mammalian cells and involvement of large molecular antioxidants include classical antioxidant enzymes, such as superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), and glutathione reductase (GR). Cadmium (Cd), a potent toxic heavy metal, is a widespread environmental contaminant. It is known to cause renal dysfunction, hepatic toxicity, genotoxicity, and apoptotic effects depending on the dose, route, and duration of exposure. This review examines the signaling pathways and mechanisms of activation of transcription factors by Cd-induced oxidative stress thus representing an important basis for understanding the mechanisms of Cd effect on the cells. © The Author 2017. Published by Oxford University Press on behalf of the Society of Toxicology.


Gala S.,University of Mostaganem
Communications on Pure and Applied Analysis | Year: 2012

In this paper, we establish some improved regularity conditions for the 3D incompressible magnetohydrodynamic equations via only two components of the velocity and magnetic fields. This is an improvement of the result given by Ji and Lee [8].


Gala S.,University of Mostaganem
Applicable Analysis | Year: 2011

This note is devoted to the study of the regularity of strong solutions to the Boussinesq system in which the vorticity ω∈L 2(0, T, Ḃ -1 ∞, ∞(ℝ3)) and to improve a result of Fan and Ozawa [J. Fan, T. Ozawa, Regularity conditions for the 3D Boussinesq equations with partial viscosity terms, Nonlinearity 22 (2009), pp. 553-568] and Gala [S. Gala, Remark on the regularity criterion on strong solutions to the 3D Boussinesq equations (Submitted)]. © 2011 Taylor and Francis Group, LLC.


Gala S.,University of Mostaganem
Nonlinear Analysis, Theory, Methods and Applications | Year: 2011

In this paper, we consider the regularity criterion of axisymmetric weak solutions to the Navier-Stokes equations in ℝ3. Let u be an axisymmetric weak solution in ℝ3×(0,T), w=curlu, and wθ be the azimuthal component of w in the cylindrical coordinates. It is proved that u becomes a regular solution if wθ∈L2/2-s(0, T;M.2,3/s), where M.2,3/s is the critical MorreyCampanato space. © 2010 Elsevier Ltd. All rights reserved.


Gala S.,University of Mostaganem
Nonlinear Differential Equations and Applications | Year: 2010

In this paper, some improved regularity criteria for the 3D magneto-micropolar fluid equations are established in Morrey-Campanato spaces. It is proved that if the velocity field satisfies, or the gradient field of velocity satisfies, then the solution remains smooth on [0,T]. By the embedding, we see that our result is an improvement of (Yuan in Acta Mathematica Scientia, to appear). © 2009 Birkhäuser Verlag Basel/Switzerland.


Ouinas D.,University of Mostaganem
Journal of Sandwich Structures and Materials | Year: 2012

Applications of assembly bonded technique have been extended currently to various industrial fields. Adhesively bonded joints are widely used in the aeronautics and astronautics industry as a result of their high strength and convenience in using the single-lap joint. The geometry of bonded single-lap joint is nonlinear and causes the eccentricity due to the non-collinear applied load, which conducts to a significant stress concentration at the extremities of overlap area, where the cracks may initiate. In this article, the finite element (FE) method is used to analyze the behavior of a bonded lap joint of aluminum adherend. The comparison of stress concentration factor and stress intensity factor of crack emanating from the circular and semi-circular notches are investigated. The single-lap bonded joints were analyzed to study the combined effect of the notch and the disbond as they pertain to joint strength and failure conditions. The results show that the stress concentration factor and stress intensity factor are affected by the negative disbond effect and their values are strongly proportional to its size. © The Author(s) 2012 Reprints and permissions: sagepub.co.uk/journalsPermissions.nav.


Gala S.,University of Mostaganem
Mathematical Methods in the Applied Sciences | Year: 2010

In this paper, we consider the regularity criteria for weak solutions to the 3D incompressible magnetohydrodynamic equations and prove some regularity criteria which are related only with u+B or u-B. This is an improvement of the result given by He and Wang (J. Differential Equations 2007; 238:1-17; Math. Meth. Appl. Sci. 2008; 31:1667-1684) and He and Xin (J. Differential Equations 2005; 213(2):235-254). © 2010 John Wiley & Sons, Ltd.


Gala S.,University of Mostaganem
Nonlinear Analysis: Real World Applications | Year: 2011

In this paper, we establish a Serrin-type regularity criterion for the weak solutions to the micropolar fluid equations in R3. It is proved that, if the velocity field satisfies one of the following conditions: u∈L21-r(0,T;M2,3r(R3)) or∇u∈L22-r(0,T;M2,3r(R3)), or the associated pressure satisfies one of the following conditions: p∈L2 2-r(0,T;M2,3r(R3))or∇p∈L2 3-r(0,T;M2,3r(R3)), then the solution remains smooth on [0,T]. © 2011 Elsevier Ltd. All rights reserved.

Loading University of Mostaganem collaborators
Loading University of Mostaganem collaborators