126 results match your criteria: "Universite Mohammed V de Rabat[Affiliation]"

The Thermodynamics of the Van Der Waals Black Hole Within Kaniadakis Entropy.

Entropy (Basel)

November 2024

Institute of Fundamental and Applied Research, National Research University TIIAME, Kori Niyoziy 39, Tashkent 100000, Uzbekistan.

In this work, we have studied the thermodynamic properties of the Van der Waals black hole in the framework of the relativistic Kaniadakis entropy. We have shown that the black hole properties, such as the mass and temperature, differ from those obtained by using the the Boltzmann-Gibbs approach. Moreover, the deformation κ-parameter changes the behavior of the Gibbs free energy via introduced thermodynamic instabilities, whereas the emission rate is influenced by κ only at low frequencies.

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Carotid stenosis complicating a vagus paraganglioma: A dually rare case.

Int J Surg Case Rep

January 2025

Université Mohammed V de Rabat, Avenue des Nations Unies, Agdal, Rabat Maroc, B.P:8007. N.U., Morocco; Department of Vascular Surgery, Centre Hospitalier Universitaire IBN SINA, Avenue Bettouga, Rabat 10000, Morocco.

Introduction And Importance: Cervical paragangliomas of the vagus nerve are tumors, of wich the nature and location make them extremely rare, representing only 0.012 % of cervical tumors.

Case Presentation: This article reports the case of a 64 year old patient, consulting for a latero-cervical mass associated with dysphonia, dysphagia, and repeated vagal syncopes, evolving for 10 months.

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Aims: The aim of this study was to determine the association between vitamin D deficiency and advanced BC in a Malian women population.

Methods: This is a prospective cross-sectional study, conducted during 4 months, from August 2021 to November 2021. The assays were performed on immunodiagnostic and biochemistry devices in Rodolphe Merieux Laboratory.

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Recurrence of multiple localizations of false tuberculous aneurysms after aortic surgery: A case report.

Int J Surg Case Rep

December 2024

Université Mohammed V de Rabat, Avenue des Nations Unies, Agdal, Rabat Maroc B.P:8007. N.U, Morocco; Department of Vascular Surgery, Centre Hospitalier Universitaire IBN SINA, Avenue Bettouga, Rabat 10000, Morocco; Head of Vascular Surgery, Centre Hospitalier Universitaire IBN SINA, Avenue Bettouga, Rabat 10000, Morocco.

Introduction And Importance: Tuberculous aortic aneurysms require rigorous medical and surgical management due to the various complications that pose a significant life risk, with recurrence being one of the most formidable postoperative complications. This recurrence is linked to significant hemorrhage and infection, subsequently increasing the risk of mortality. Aneurysmal involvement due to tuberculosis is documented and can affect all arteries, but localization in the common iliac artery is rare and serious, necessitating immediate management.

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Biochar-alginate beads derived from argan nutshells for effective methylene blue removal: A sustainable approach to wastewater treatment.

Int J Biol Macromol

December 2024

Moroccan Foundation for Advanced Science, Innovation and Research (MAScIR), Composites and Nanocomposites Center, Mohammed VI Polytechnic University, Lot 660 - Hay Moulay Rachid, 43150 Ben Guerir, Morocco. Electronic address:

This study explores the use of biochar derived from Argan Nutshells as a core component in alginate beads for the removal of methylene blue (MB) from aqueous solutions. The characterization of BC/Alg composite was conducted using techniques like Scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), X-Ray diffraction (XRD), and size distribution to assess its structural properties and confirm the strong interaction between both components. The adsorbent exhibited surface functional groups characteristic of both biochar and alginate, and SEM confirmed the spherical morphology of the beads.

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Article Synopsis
  • Hemophilia is a medical condition where a person has trouble stopping bleeding because their body doesn't have enough special proteins called coagulation factors.
  • People with hemophilia can easily get bruises and bleeding in their joints, which can cause serious long-term problems in how their joints work.
  • Doctors can diagnose hemophilia through blood tests and use MRI scans to see how the disease is affecting the bones and joints, as shown in two cases of patients with very similar symptoms.
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Lead-induced changes in plant cell ultrastructure: an overview.

Biometals

February 2025

Laboratoire de Biotechnologie et Physiologie Végétales, Faculté des Sciences, Université Mohammed V de Rabat, 4 Avenue Ibn Batouta BP 1014 RP, 10000, Rabat, Morocco.

Lead (Pb) is one of the most harmful toxic metals and causes severe damage to plants even at low concentrations. Pb inhibits plant development, reduces photosynthesis rates, and causes metabolic disfunctions. Plant cells display these alterations in the form of abnormal morphological modifications resulting from ultrastructural changes in the cell wall, plasma membrane, chloroplast, endoplasmic reticulum, mitochondria, and nuclei.

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This paper presents a comprehensive study on the corrosion inhibition properties of new organic compounds, (1-benzimidazol-2-yl)methanethiol (LF) and 1-dodecyl-2-((dodecylthio)methyl)-1-benzimidazole (LF), have been examined for inhibiting of Carbon-Steel (C.S) in 1.0 M HCl.

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Tuberculosis (TB) is a common infectious disease that most often affects the lungs, but it can also affect any other organ with a wide range of clinical manifestations. There are three forms of hepatic involvement: diffuse hepatic tuberculosis combined with pulmonary tuberculosis; diffuse hepatic tuberculosis without pulmonary involvement; and nodular or focal/local hepatic tuberculosis, which is a very rare form and presents a diagnostic challenge. We here report the case of a young Moroccan man presenting with biliary colic that had been evolving for a month, associated with a forme fruste of tuberculous impregnation.

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Spatiotemporal modeling of the potential impact of climate change on shifts in bioclimatic zones in Morocco.

Environ Monit Assess

September 2024

Laboratoire de Biotechnologie Et Physiologie Végétales, Centre de Biotechnologie Végétale Et Microbienne Biodiversité Et Environnement, Faculté Des Sciences, Université Mohammed V de Rabat, 10000, Rabat, Morocco.

This study aims to contribute to the understanding of the impact of climate change on bioclimatic zones in Morocco, providing insights into potential shifts and emphasizing the need for adaptation measures to protect vulnerable species and ecosystems. To achieve this, we utilized eight general circulation models (GCMs) to simulate climate conditions under two representative concentration scenarios (RCP4.5 and RCP8.

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Management of acquired aplastic anemia (AA) in emerging countries depends on the means of prognostic stratification, treatment and logistics available. During the 13th annual harmonization workshop of the francophone Society of bone marrow transplantation and cellular therapy (SFGM-TC), a designated working group reviewed the literature in order to elaborate unified guidelines for allogeneic hematopoietic cell transplantation (Allo-HCT) in this disease. In terms of practice, the conclusions are as follows; The use of anti-tymocyte globuline (ATG) is mainly from rabbit and very little from horse.

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Behcet's disease is a multisystem inflammatory disorder, whose vascular involvement is very rare. Aneurysmal arterial involvement is the severe form of the disease, it constitutes a therapeutic challenge given its severity, and frequent secondary complications. Profunda femoral artery aneurysms (PFAAs) are extremely rare.

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Infantile myofibromatosis is a proliferative disorder occurring during infancy and early childhood, marked by the development of nodular or diffuse lesions consisting of various mesenchymal elements. Intracranial involvement is infrequently reported. Here, we present the case of a 3-year-old girl exhibiting a rare manifestation of IM with intracranial parenchymal involvement, displaying a histological pattern documented in existing literature on patients with infantile myofibromatosis.

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Objective: Ionizing radiation generates genomic instability by promoting the accumulation of chromosomal rearrangements. The oncogenic translocation RET/PTC1 is present in more than 70% of radiation-induced thyroid cancers. Both RET and CCDC6, the genes implicated in RET/PTC1, are found within common fragile sites - chromosomal regions prone to DNA breakage during slight replication stress.

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Silver nanoparticle-decorated cellulose beads: Eco-friendly catalysts for efficient 4-nitrophenol reduction and antibacterial performance.

Int J Biol Macromol

July 2024

Moroccan Foundation of Advanced Science Innovation and Research (MAScIR), Composites and Nanocomposites Center, Rabat Design Center, Madinat Al Irfane, Rabat, Morocco; Mohammed VI Polytechnic University, Lot 660 Hay Moulay Rachid, Ben Guerir 43150, Morocco. Electronic address:

This study presents an innovative and environmentally friendly method to produce fibrous cellulose beads by mechanically stirring natural fibers in an aqueous medium. Date palm fibers are transformed into uniform beads with a diameter of 1.5 to 2 mm through chemical treatment and mechanical agitation.

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Native plant species growing on the abandoned Zaida lead/zinc mine site in Morocco: Phytoremediation potential for biomonitoring perspective.

PLoS One

June 2024

Faculté des Sciences, Laboratoire de Biotechnologie et Physiologie Végétales, Centre de Biotechnologie Végétale et Microbienne Biodiversité et Environnement, Université Mohammed V de Rabat, Rabat, Morocco.

This study aims to assess the level of metal contamination and the ecological risk index at the abandoned Zaida Pb/Zn mining site in eastern Morocco and identify native plant species found on the site that can be used in site rehabilitation through phytoremediation strategies. Samples from seven native and abundant plant species at the site, along with their rhizospheric soils, were collected and analyzed using Inductively Coupled Plasma Mass Spectrometry (ICP-MS) to determine the concentrations of various metal(loid)s, including As, Cu, Ni, Cd, Sb, Zn, and Pb. Indicators of soil pollution and ecological risks were also assessed, including the enrichment factor (EF), pollution index (PI), and ecological risk index (ERI).

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Background And Justification: The Republic of Djibouti is located in the Horn of Africa, on the Gulf of Aden and the Bab-el-Mandeb detroit, at the southern entrance to the Red Sea. Prior to its independence in 1977, the Republic of Djibouti was known by two names: "Côte française des Somalis" until 1967, then "Territoire Français de Afars et Issas". As part of our doctoral research on the ecology of mosquitoes in Djibouti, we noted a lack of information on the species encountered, and felt it essential to draw up a list of species before embarking on ecological monitoring.

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Perception and expectation of Moroccan pharmacy students regarding e-learning in the context of COVID-19 pandemic lockdown.

Ann Pharm Fr

June 2024

Équipe de formulation et de contrôle qualité des produits de santé, laboratoire de pharmaceutique, faculté de médecine et de pharmacie, université Mohammed V de Rabat, Rabat, Morocco; Centre hospitalier universitaire Ibn Sina, Rabat, Morocco.

Purpose: Online learning, or e-learning, has grown exponentially in recent years, not least because the COVID-19 pandemic has forced many educational establishments to adopt distance learning modalities. In the field of pharmacy, where the acquisition of theoretical and practical knowledge is essential, the adoption of e-learning has attracted particular interest. The aim of this study is to analyze the feedback received by pharmacy students from different faculties in the country following the introduction of new learning methods during the Covid pandemic.

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Dataset on the power dissipated by rolling resistance of a prototype photovoltaic electric vehicle while varying the mass.

Data Brief

February 2024

Université Mohammed V de Rabat, Ecole Mohammadia d'Ingénieurs, Équipe de Recherche Génie Mécanique et Énergétique : Modélisation et Expérimentation ERG2(ME) Av. Ibn Sina B.P. 765, Rabat, Morocco.

Article Synopsis
  • - The study investigates an electric vehicle powered by photovoltaic energy, which can reach speeds of 35.7 km/h, travel 70 km, and weighs 300 kg, while also generating electricity for domestic use.
  • - It measures how different resistances, especially rolling resistance, affect the vehicle's performance using electric motors with specific power and voltage specifications.
  • - The research utilizes experimental data and MATLAB to analyze the power lost due to rolling resistance, contributing to a better understanding of electric vehicle performance based on factors like mass, speed, and driving surface.
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Cellulose beads supported CoFeO: A novel heterogeneous catalyst for efficient rhodamine B degradation via advanced oxidation processes.

Int J Biol Macromol

February 2024

Moroccan Foundation of Advanced Science Innovation and Research MAScIR, Composites and Nanocomposites Center, Rabat Design Center, Madinat Al Irfane, Rabat, Morocco; Mohammed VI Polytechnic University, Lot 660 Hay Moulay Rachid, Ben Guerir 43150, Morocco. Electronic address:

Article Synopsis
  • A novel mechanical process was developed to create cellulose beads doped with cobalt ferrite nanoparticles, which act as catalysts to break down rhodamine B using peroxymonosulfate activation.
  • The catalysts were extensively characterized using techniques like XRD, FT-IR, SEM, and TGA, and the optimal degradation conditions led to a 98.51% efficiency in removing rhodamine B in just 60 minutes at a specific pH and temperature.
  • The CoFeO@CB catalysts showed exceptional stability and reusability, maintaining high degradation efficiency over multiple recycling tests, highlighting their potential for wastewater treatment applications.
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Hemp cellulose nanocrystals for functional chitosan/polyvinyl alcohol-based films for food packaging applications.

RSC Adv

November 2023

Moroccan Foundation for Advanced Science, Innovation and Research (MAScIR), Composites and Nanocomposites Center, Rabat Design Center Rue Mohamed El Jazouli, Madinat El Irfane 10100 Rabat Morocco

Hemp is known for its swift growth and remarkable sustainability, requiring significantly less water, an adaptable cultivation to a wide range of climates when compared to other fibers sources, making it a practical and environmentally friendly choice for packaging materials. The current research seeks to extract cellulose nanocrystals (CNCs) from hemp fibers using alkali treatment followed by acid hydrolysis and assess their reinforcing capacity in polyvinyl alcohol (PVA) and chitosan (CS) films. AFM analysis confirmed the existence of elongated, uniquely nanosized CNC fibers.

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