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Agadir, Morocco

Nemiche M.,University Ibn Zohr
International Journal of Intelligent Systems | Year: 2016

The Special Issue of International Journal of Intelligent Systems discusses articles from the papers presented at to the Second World Conference on Complex Systems (WCCS), which took place on November 10-12, 2014 in Agadir, Morocco. Lemos and colleagues in the first article 'On legitimacy feedback mechanisms in agent-based modeling of civil violence' extended Epstein's well-known agent-based model of civil violence by introducing endogenous legitimacy feedback, with four different functions for expressing the legitimacy and two feedback mechanisms, homogeneous (global) and heterogeneous (agent dependent). The article 'Accuracy comparison of analogy-based software development effort estimation techniques' by Idri and colleagues. deals with categorical attributes is one of the most difficult issues for analogy-based estimation techniques. The article 'An adaptive regulation approach of mobile agent population size in distributed systems' by Bakhouya and colleagues. deals with the dynamic regulation of agent population size in ubiquitous and pervasive computing systems. The last article 'A comparative study between the dynamic behaviors of standard cellular automata (CA) and network CA applied to cryptography' by MacA○edo and colleagues. presents an extensive experimental study on the relative advantages of a network cellular automata model for cryptographic applications, compared to standard CA. Source

Hamdani M.,University Ibn Zohr | Singh R.N.,Banaras Hindu University | Chartier P.,CNRS Institute of Chemistry
International Journal of Electrochemical Science | Year: 2010

Many spinel cobaltite oxides meet the requirement for a wide range of electrochemical reactions. These materials have largely been investigated as electrocatalysts for the oxygen evolution reaction (OER) or oxygen reduction reaction (ORR). The objective of this article is to summarize the studies available in the literature on electrochemical and electrocatalytic properties of cobaltite spinel oxides towards the OER and ORR in alkaline media. The main focus of this review is on the recent investigations dealing with the performance of Co3O4and Cobased spinel oxides as the oxygen electrodes in the light of the earlier published work. © 2010 by ESG. Source

Koubachi J.,University Ibn Zohr | El Kazzouli S.,Euro-Mediterranean University | Bousmina M.,Euro-Mediterranean University | Bousmina M.,Hassan II Academy of Science and Technology | Guillaumet G.,CNRS Institute of Organic and Analytical Chemistry
European Journal of Organic Chemistry | Year: 2014

This review surveys recent developments (reported in the last fifteen years) in organometallic-chemistry-based methods for the functionalization of imidazo[1,2-a]pyridines, in particular the decoration of the pyridine and imidazole rings by means of reactions such as Sonogashira, Heck, Negishi, Suzuki-Miyaura, and Stille cross-coupling, as well as by C-H activation, C-arylation, C-alkenylation, and carbonylation. Results relating to one-pot double functionalization of two different positions on the imidazo[1,2-a] pyridine system are also reviewed. Procedures in which metal-based catalysis is not involved in the functionalization of imidazo[1,2-a]pyridines are not included. Copyright © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. Source

Ouadid-Ahidouch H.,University of Picardie Jules Verne | Ahidouch A.,University of Picardie Jules Verne | Ahidouch A.,University Ibn Zohr
Frontiers in Physiology | Year: 2013

K+ ions play a major role in many cellular processes. The deregulation of K+ signaling is associated with a variety of diseases such as hypertension, atherosclerosis, or diabetes. K+ ions are important for setting the membrane potential, the driving force for Ca2+ influx, and regulate volume of growing cells. Moreover, it is increasingly recognized that K+ channels control cell proliferation through a novel signaling mechanisms triggered and modulated independently of ion fluxes. In cancer, aberrant expression, regulation and/or sublocalization of K+ channels can alter the downstream signals that converge on the cell cycle machinery. Various K+ channels are involved in cell cycle progression and are needed only at particular stages of the cell cycle. Consistent with this idea, the expression of Eag1 and HERG channels fluctuate along the cell cycle. Despite of acquired knowledge, our understanding of K+ channels functioning in cancer cells requires further studies. These include identifying the molecular mechanisms controlling the cell cycle machinery. By understanding how K+ channels regulate cell cycle progression in cancer cells, we will gain insights into how cancer cells subvert the need for K+ signal and its downstream targets to proliferate. © 2013 Ouadid-Ahidouch and Ahidouch. Source

Bnouhachem A.,Nanjing University | Bnouhachem A.,University Ibn Zohr | Xu M.H.,Changzhou University
Computers and Mathematics with Applications | Year: 2014

In this paper, we present an inexact alternating direction method. Each iteration of the proposed method contains a prediction and a correction, the predictor is obtained via solving the logarithmic-quadratic proximal (LQP) system approximately under significantly relaxed accuracy criterion and the new iterate is computed directly by an explicit formula derived from the original LQP method. Under certain conditions, the global convergence of the proposed method is proved. © 2013 Elsevier Ltd. All rights reserved. Source

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