Les défis de la régionalisation

¿Cuáles son las dificultades y los desafíos que se generan en torno al proceso de regionalización de Marruecos? ¿Es posible una regionalización avanzada en el país teniendo en cuenta toda una serie de paradigmas de carácter histórico, social, político y democrático a los cuales debería responder? Estas son algunas de las preguntas clave a las que se responde en esta comunicación. Del mismo modo, se analiza cómo es posible una gestión democrática de la diversidad regional y territorial marroquí, a través de instancias con legitimidad política y frente a una clara y vigente disfunción del aparato estatalWhat are the difficulties and challenges that arise on the process of regionalization of Morocco? It is possible an advanced regionalization in Morocco taking into account a variety of paradigms of historical, social, political and democratic background? These are some of the key questions that are answered in this communication. In the same way, this paper analyse how is it possible the democratic management of the regional and territorial diversity of Morocco, through political legitimacy and facing a clear and effective state apparatus dysfunctio

Effect of the Alkyl Chain Length Incorporated into Donor Part on the Optoelectronic Properties of the Carbazole Based Dyes: Theoretical Study

In this paper, we report a theoretical study using density functional theory (DFT) and time-dependent (TD-DFT) for R-D-π-A systems with various alkyl chains (R). Results show that the LUMO of the dye lies above the semiconductor conduction band, promoting the injection of electrons; the lower HOMO level promotes dye regeneration. The incorporation of methyl chain (CH3) has a significant reduction in the gap energy, improved red-shift absorption spectrum and increase the molar extinction coefficient at the maximum absorption wavelength compared to D. While, the increase in alkyl chain length from C2H5 to C6H13 present a relatively reduce of gap energies, low effect on the wavelength (438 nm) and converged excitation energies. DOI: http://dx.doi.org/10.17807/orbital.v9i5.100

La contribution de l’audit interne dans la performance du système de contrôle interne : cas du secteur bancaire marocain

This article aims to present and identify the phenomenon of the industrial agglomeration of companies belonging to the Automobile sector through the various industrial policies implemented by the Moroccan public authorities in order to subtract answers to our problem of base which focuses on the contribution of sectoral strategic plans in the redeployment of the Automotive industry according to a territorial approach. To do this, we first proceeded with a theoretical overview of the different forms of business agglomerations, and the role of skill centers in the development of business competitiveness and the strengthening of territorial attractiveness. A historical overview of the automotive industry from independence to the integration of French automotive giant companies as RENAULT and PSA, with milestones in the sector. Subsequently, to operationalize our study, we demonstrated the role of public power in the promotion of the automotive industry through the exposure of the key factors of Morocco's attractiveness, as well as the points of weakness. Subsequently, we proceeded to an analysis of the contributions of industrial policies in order to operationalize the agglomeration of companies belonging to the sector. The results of our study showed that the spatial agglomeration of the automotive sector has enabled Morocco to create ecosystems capable of adapting to the requirements of the global automotive value chain to position itself among the most attractive countries. In Africa for companies operating in the sector. However, weaknesses persist.     Jel classification : F21 Paper type: Theoretical researchCet article a pour objectif de présenter et identifier le phénomène de l’agglomération industrielle des entreprises appartenant au secteur de l’Automobile à travers les différentes politiques industrielles mises en œuvre par le pouvoir public marocain afin d’en soustraire des réponses à notre problématique de base qui porte sur la contribution des plans sectoriels stratégiques dans le redéploiement de l’industrie automobile selon une approche territoriale . Pour ce faire, nous avons procédé tout d’abord par un aperçu théorique sur les différentes formes d’agglomération des entreprises, et le rôle des pôles de compétences dans le développement de la compétitivité des entreprises et le renforcement de l’attractivité territoriale. Une vue d’ensemble historique de l’industrie automobile depuis l’indépendance et jusqu’au l’intégration des géants de l’Automobile français RENAULT et PSA, avec les étapes marquantes du secteur. Par la suite, Pour opérationnaliser notre étude, nous avons démontré le rôle pouvoir public dans la promotion de l’industrie automobile à travers l’exposition des facteurs clés de l’attractivité du Maroc, Ainsi que les points da faiblesse. Par la suite, nous avons procédé à une analyse des apports des politiques industrielles en vue d’opérationnaliser l’agglomération des entreprises appartenant au secteur. Les résultats de notre étude ont montré que l’agglomération spatiale du secteur de l’Automobile ont permis au Maroc de créé des écosystèmes capables de s’adapter avec les contraintes de la chaîne de valeur automobile mondiale  pour se positionner parmi les pays les plus attractifs en Afrique pour les entreprises opérantes dans le secteur .Cependant, des faiblesses persistent encore.     Classification JEL: F 21 Type de l’article : Article théoriqu

E-learning in health professions education during the COVID-19 pandemic: a systematic review

As an alternative to traditional teaching, e-learning has enabled continuity of learning for health professions students during the coronavirus disease 2019 (COVID-19) pandemic. This review explored health professions students; perceptions, acceptance, motivation, and engagement with e-learning during the COVID-19 pandemic. Following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines, a systematic review was conducted by consulting 5 databases: PubMed, ERIC (Ebsco), Science Direct, Scopus, and Web of Science. The quality of the included studies was assessed using the Medical Education Research Study Quality Instrument. The research protocol was previously registered in the PROSPERO registry (CRD42021237055). From 250 studies identified, 15 were selected with a total of 111,622 students. Mostly positive perceptions were reported in 7 of 12 studies, which mainly focused on technology access, possession of basic computer skills, pedagogical design of online courses, online interactions, and learning flexibility. However, predominantly negative perceptions were identified in 5 of 12 studies, which pointed out constraints related to internet connections, the use of educational platforms, and acquisition of clinical skills. Satisfactory levels of acceptance of distance learning were reported in 3 of 4 studies. For student motivation and engagement, 1 study reported similar or higher motivation than with traditional teaching, and another study indicated that student engagement significantly increased during the COVID-19 pandemic. Health professions students showed a positive response to e-learning regarding perceptions, acceptance, motivation, and engagement. Future research is needed to remediate the lack of studies addressing health professions students’ motivation and engagement during the COVID-19 pandemic

On Brane Inflation Potentials and Black Hole Attractors

We propose a new potential in brane inflation theory, which is given by the arctangent of the square of the scalar field. Then we perform an explicit computation for inflationary quantities. This potential has many nice features. In the small field approximation, it reproduces the chaotic and MSSM potentials. It allows one, in the large field approximation, to implement the attractor mechanism for bulk black holes where the geometry on the brane is de Sitter. In particular, we show, up to some assumptions, that the Friedman equation can be reinterpreted as a Schwarzschild black hole attractor equation for its mass parameter.Comment: 12 pages. Reference updated and minor changes added. Version to appear in Int. J. Mod. Phys.

Effect of the Alkyl Chain Length Incorporated into Donor Part on the Optoelectronic Properties of the Carbazole Based Dyes: Theoretical Study

In this paper, we report a theoretical study using density functional theory (DFT) and time-dependent (TD-DFT) for R-D-π-A systems with various alkyl chains (R). Results show that the LUMO of the dye lies above the semiconductor conduction band, promoting the injection of electrons; the lower HOMO level promotes dye regeneration. The incorporation of methyl chain (CH3) has a significant reduction in the gap energy, improved red-shift absorption spectrum and increase the molar extinction coefficient at the maximum absorption wavelength compared to D. While, the increase in alkyl chain length from C2H5 to C6H13 present a relatively reduce of gap energies, low effect on the wavelength (438 nm) and converged excitation energies. DOI: http://dx.doi.org/10.17807/orbital.v9i5.100

Mantle cell lymphoma of the larynx: Primary case report

INTRODUCTION: Primary laryngeal lymphomas are exceedingly rare. Only about a hundred cases have been reported. They consist mainly of non-Hodgkin lymphoma, especially of diffuse large B-cell lymphoma and mucosa-associated lymphoid tissue. We report the first case of a primary laryngeal mantle cell lymphoma. CASE PRESENTATION: We report a case of a primary mantle cell lymphoma of the larynx in a 70-year-old North African non-smoker male. We present a detailed report of his clinical and paraclinical data as well as treatment options. CONCLUSIONS: Mantle cell lymphoma is a very aggressive lymphoma subset associated with poor prognosis. Laryngeal mantle cell lymphoma is exceedingly rare. To the best of our knowledge, this is the first case to ever be reported

Synthesis and characterization of arginine-doped heliotrope leaves with high clean-up capacity for crystal violet dye from aqueous media

Novel an arginine-modified Heliotrope leaf (Arg@HL) was used as adsorbent for the crystal violet (CV) dye adsorption in a batch process. The physicochemical and morphological composition of Arg@HL were characterized by field-emission-scanning-electron-microscopy (FE-SEM), Fourier transforms infrared (FT-IR) spectroscopy, thermogravimetric analysis (TGA), differential scanning calorimetry (DSC). The experiments were carried out to investigate the factors that influence the dye uptake by the adsorbent, such as the contact time under agitation, adsorbent amount, initial dye concentration, temperature and pH of dye solution. The optimum conditions of adsorption were found on the batch scale as followed: CV concentration of 20 mg center dot L-1, an amount of 0.75 g center dot L-1 of the adsorbent, 90 min contact time, 6 pH and 25 degrees C temperature for Arg@HL. The results confirmed a second-order model explaining the dye crystal violet's adsorption's kinetics by Arg-Heliotrope leaves. The Langmuir model effectively defines the adsorption isotherms. The results revealed that the Arg@HL has the potential to be used as a low-cost adsorbent for the removal of CV dye from aqueous solutions

Photocatalytic oxidation of pollutants in gas-phase via Ag3PO4-based semiconductor photocatalysts: Recent progress, new trends, and future perspectives

Air pollution has become a significant challenge for both developing and developed nations. due to its close association with numerous fatal diseases such as cancer, respiratory, heart attack, and brain stroke. Over recent years, heterogeneous semiconductor photocatalysis has emerged as an effective approach to air remediation due to the ease of scale-up, ready application in the field, use of solar light and ready availability of a number of different effective photocatalysts. To date, most work in this area has been conducted using UV-absorbing photocatalysts, such as TiO2 and ZnO; However, recent studies have revealed Ag3PO4 as an attractive, visible-light-absorbing alternative, with a bandgap of 2.43 eV. In particular, this material has been shown to be an excellent photocatalyst for the removal of many types of pollutants in the gas phase. However, the widespread application of Ag3PO4 is restricted due to its tendency to undergo photoanodic corrosion and the poor reducing power of its photogenerated conductance band electrons, which are unable to reduce O2 to superoxide •O2−. These limitations are critically evaluated in this review. In addition, recent studies on the modification of Ag3PO4 via combination with the conventional heterojunctions or Z-scheme junctions, as well as the photocatalytic mechanistic pathways for enhanced gas-pollutants removal, are summarized and discussed. Finally, an overview is given on the future developments that are required in order to overcome these challenges and so stimulate further research into this promising field