31 results match your criteria: "University of Cadi Ayyad[Affiliation]"

Article Synopsis
  • The study aimed to analyze the phenotypic and cytogenetic characteristics of trisomy 13 in a Moroccan population involving 9 diagnosed cases.
  • A slight female predominance was observed, with major clinical findings including severe physical and developmental abnormalities such as holoprosencephaly, cleft lip and palate, and congenital heart defects.
  • The cytogenetic analysis revealed that most cases had free and homogeneous trisomy 13, which often resulted in early mortality, while one variant, partial trisomy 13 (t(13;18)), had better outcomes with patients surviving longer but still facing significant health issues.
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Measurement of 238 U, 232 Th, 222 Rn and 220 Rn Contents in Optical Contact Lenses: Resulting Alpha and Beta Equivalent Doses to the Eye Tissues of Adult Patients.

Health Phys

February 2024

Nuclear Physics and Techniques Laboratory, Department of Physics, Faculty of Sciences Semlalia, BP.2390, University of Cadi Ayyad, Marrakech, Morocco.

To estimate equivalent doses received by eye tissues of patients, contents of uranium ( 238 U), thorium ( 232 Th), radon ( 222 Rn), and thoron ( 220 Rn) were determined inside various optical contact lenses used for vision correction. 238 U, 232 Th, 222 Rn, and 220 Rn contents varied between (3.44 ± 0.

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Study of the transfer of U, Th and Rn radionuclides from soil to cereal plants and root vegetables in a semi-arid area: Resulting radiation doses to rural consumers.

Appl Radiat Isot

November 2023

Nuclear Physics and Techniques Laboratory, Department of Physics, Faculty of Sciences, Semlalia B.P. 2390, University of Cadi Ayyad, Marrakech, Morocco.

Cereals and vegetables, widely consumed by Moroccan rural populations, are locally produced without using fertilizers. To explore the exposure pathway of U, Th, and Rn to the human body, we measured the contents of these radionuclides in various compartments of cereal plants and root vegetables. Contents of these radionuclides were also measured in the soils in which the cereal plants and root vegetables were grown in a semi-arid area.

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Lithological discrimination and mineralogical mapping using Landsat-8 OLI and ASTER remote sensing data: Igoudrane region, jbel saghro, Anti Atlas, Morocco.

Heliyon

July 2023

Department of Geology, Geoscience Geotourism Natural Hazards and Remote Sensing Laboratory (2GRNT), Faculty of Sciences Semlalia, University of Cadi Ayyad, BP 2390, 40000 Marrakesh, Morocco.

This study aims to delineate the lithological formations, in addition to a mineralogical mapping comparing between the ASTER and Landsat-8 OLI sensors in the Igoudrane region. The research was accomplished using BR along with spectral profiles of minerals, PCA, MNF, ICA, XRD, and reflectance spectrometry. The BR measured with ASTER revealed the presence of amphibole, illite, smectite, muscovite, phengite, basic degree index SiO2, calcite, chlorite, epidote, dolomite, hydroxides, and ferrous silicates.

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The proliferation of genomic sequencing approaches has significantly impacted the field of phylogenetics. Target capture approaches provide a cost-effective, fast and easily applied strategy for phylogenetic inference of non-model organisms. However, several existing target capture processing pipelines are incapable of incorporating whole genome sequencing (WGS).

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Assessment of Alpha Doses Received by Spa Workers Due to the Inhalation of 214 Po and 218 Po Radon Progeny.

Health Phys

November 2022

Nuclear Physics and Techniques Laboratory, Department of Physics, Faculty of Sciences Semlalia, BP.2390, University of Cadi Ayyad, Marrakech, Morocco.

In Morocco spas are more and more frequented by bathers for massages, body treatments, and aromatherapy and hair services, among others. Alpha-activities due to 222 Rn, 220 Rn and their progeny have been evaluated inside spa room atmospheres by means of a technique based on using two types of solid-state nuclear track detectors. 222 Rn and 220 Rn concentrations ranged between (67 ± 5 and 103 ± 7) Bq m -3 and (5.

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Body image perceptions and avoidance behaviours among a Moroccan group of adolescents.

Ann Hum Biol

March 2022

Faculty of Science Semlalia, Laboratory of Human Ecology, University of Cadi Ayyad Marrakesh, Marrakesh, Morocco.

Background: Adolescents are a vulnerable group to body dissatisfaction that causes unhealthy attitudes and behaviours. It has been shown that many factors affect body image dissatisfaction.

Aim: To describe body image size perception, degree of body dissatisfaction, avoidance behaviours, and their relationship with gender, age, and weight status, and to assess the relationship between body dissatisfaction and avoidance behaviours among a group of Moroccan adolescents.

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In this research paper, we report the cytotoxic and apoptotic effects of 1,2,3-triazole derivatives in a unique or hybrid form with isoxazoline using the eugenol as a precursor in HT-1080 fibrosarcoma, MCF-7, and MDA-MB-231 breast carcinoma, and A-549 lung carcinoma. Data obtained on the cytotoxic effects have shown that hybrid compounds induced a significant anticancer activity and are more important than the ones of 1,2,3-triazole derivatives with IC ranging from 18 to 43 μM for the hybrids and from 15 to 29 μM for mono-adducts in all cell lines. Concerning the apoptotic study, compounds and can induce apoptosis in HT-1080 and A-549 cells as revealed by Annexin-V labeling and caspase-3/7 activity, also, the apoptotic effect was accompanied by cell cycle arrest at G2/M phase in the case of compounds and .

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Accounting for important interaction effects can improve the prediction of many statistical learning models. Identification of relevant interactions, however, is a challenging issue owing to their ultrahigh-dimensional nature. Interaction screening strategies can alleviate such issues.

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The anti-inflammatory and antihyperglycemic effects of polysaccharides extracted from   Medik. seeds, spontaneous shrub collected in Southern of Algerian Sahara were investigated. Their water extraction followed by alcoholic precipitation was conducted to obtain two water-soluble polysaccharides extracts (WSPAM1 and WSPAM2).

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Objectives: We implemented a project named MENINGSTOP in three countries of North Africa (Algeria, Morocco and Tunisia). The main objective was to use real-time PCR to detect, identify and type the three main agents (Neisseria meningitidis, Streptococcus pneumoniae and Haemophilus influenzae) responsible for invasive bacterial infections (IBI).

Methods: The protocol of WHO and US CDC for real-time PCR was used to detect and type the three bacterial agents in clinical samples.

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This study explores the possibility of transforming lignocellulose-rich agricultural waste materials into value-added products. Cellulose was extracted from an empty fruit bunch of oil palm and further modified into carboxymethyl cellulose (CMC), a water-soluble cellulose derivative. The CMC was then employed as the polymeric content in fabrication of solid polymer electrolyte (SPE) films incorporated with lithium iodide.

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Phytotherapy and food applications from Brassica genus.

Phytother Res

July 2021

Department of Nutrition and Dietetics, Faculty of Pharmacy, and Centre for Healthy Living, University of Concepción, Concepción, Chile.

Plants of the genus Brassica occupy the top place among vegetables in the world. This genus, which contains a group of six related species of a global economic significance, three of which are diploid: Brassica nigra (L.) K.

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Coal samples of different ranks were investigated through various compositional, morphological/structural, and textural experiments prior to their electrochemical implementation in Na-ion half-cells. The purity of coals proved insignificant while distinctions in the flake size, pore width, pore distribution, I/I ratio, crystallite parameters (L and L) along with adjacent parameters, such as the R-empirical parameter, i.e.

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Study of Alpha and Beta Radioactivity of Clay Originating from Radionuclides Belonging to the 238U and 232Th Families: Doses to the Skin of Potters.

Health Phys

February 2021

Nuclear Physics and Techniques Laboratory, Faculty of Sciences Semlalia, BP.2390, University of Cadi Ayyad, Marrakech, Morocco (URAC-15 Research Unit Associated to the CNRST, Rabat, Morocco).

Pottery objects are presently more and more used for decoration in homes and hotels. To assess radiological hazards to potters, 238U, 232Th, 222Rn, and 220Rn radionuclides were analyzed in different clay body samples used for pottery production by means of CR-39 and LR-115 II track detectors. Data obtained were compared to those gotten by means of isotope dilution mass spectrometry.

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Prevalence and predictors of dysmenorrhea among a population of adolescent's schoolgirls (Morocco).

Saudi J Biol Sci

July 2020

Laboratory of Human Ecology (Department of Biology), Faculty of Sciences Semlalia, University of Cadi-Ayyad, Marraksh, Morocco.

Unlabelled: Dysmenorrhea is the most common gynaecological problem among young females. In Arabic countries, few studies on gynaecological problems of adolescent's girls were published.

Objective: the aim of the study was to determine the prevalence of dysmenorrhea and associated factors among adolescents in public schools at Marrakesh.

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Crystal structure, Hirshfeld surface analysis, inter-action energy and DFT studies of 4-[(4-allyl-2-meth-oxy-phen-oxy)meth-yl]-1-(4-meth-oxy-phen-yl)-1-1,2,3-triazole.

Acta Crystallogr E Crystallogr Commun

June 2020

Laboratoire de Chimie Organique Heterocyclique URAC 21, Pôle de Competence Pharmacochimie, Av. Ibn Battouta, BP 1014, Faculté des Sciences, Université Mohammed V, Rabat, Morocco.

In the title mol-ecule, CHNO, the allyl substituent is rotated out of the plane of its attached phenyl ring [torsion angle 100.66 (15)°]. In the crystal, C-H⋯O (Mthphn = meth-oxy-phen-yl) hydrogen bonds lead to the formation of (100) layers that are connected into a three-dimensional network by C-H⋯π(ring) inter-actions, together with π-π stacking inter-actions [centroid-to-centroid distance = 3.

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The asymmetric unit of the title compound, CHO, comprises two half-mol-ecules, with the other half of each mol-ecule being completed by the application of twofold rotation symmetry. The two completed mol-ecules both have a V-shaped appearance but differ in their conformations. In the crystal, each independent mol-ecule forms chains extending parallel to the axis with its symmetry-related counterparts through C-H⋯π(ring) inter-actions.

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Dose to Medical Personnel.

Health Phys

February 2020

Nuclear Medicine Service, Mohammed VI University Hospital Centre, Faculty of Medicine and Pharmacy, University of Cadi Ayyad, Marrakech, Morocco.

Radioiodine I is successfully used in nuclear medicine for the treatment of hyperthyroidism and thyroid cancer. This radionuclide emits β particles used for the treatment and gamma photons used for diagnosis. The aim of this study is to determine gamma radiation doses received by medical personnel situated at a distance of 1 m from patients having ingested I for the treatment of hyperthyroidism diseases.

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Measurement of radon, thoron and their daughters in the air of marble factories and resulting alpha-radiation doses to the lung of workers.

Environ Geochem Health

October 2019

Nuclear Physics and Techniques Laboratory, Faculty of Sciences Semlalia, University of Cadi Ayyad, BP.2390, Marrakech, Morocco.

Concentrations of radon (Rn) and thoron (Rn) were measured in the air of different marble factories by using a nuclear track technique. The influence of the marble dust nature and ventilation on radon and thoron concentrations was investigated. It was observed that measured radon and thoron concentration ranged from 310 to 903 Bq m and 6 to 48 Bq m, respectively.

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The"Back Book" translated to Arabic.

Ann Phys Rehabil Med

March 2019

Service of Rheumatology, Military Hospital Avicenne of Marrakech, Faculty of Medicine and Pharmacy of Marrakech, University of Cadi Ayyad, BP 40000 Marrakech, Morocco.

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Analysis of 238U, 232TH, 222RN, AND 220RN in Fresh and Canned Marine Fish Samples Using Solid State Nuclear Track Detectors and Resulting Alpha Radiation Doses to Adult Consumers.

Health Phys

April 2018

*Nuclear Physics and Techniques Laboratory, Faculty of Sciences Semlalia, BP.2390, University of Cadi Ayyad, Marrakech, Morocco (URAC-15 Research Unit Associated to the CNRST, Rabat, Morocco).

Consumption of seafoods has increased during the last two decades in many countries. In Morocco, annual fresh marine fish consumption has increased significantly due to the existence of modern fish markets in major cities. To explore the exposure pathway of U, Th, Rn, and Rn radionuclides to the human body of consumers, these radionuclides were measured in various fresh and canned marine fish samples widely consumed by the Moroccan population by using two types of solid state nuclear track detectors (SSNTDs).

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222Rn, 220Rn and Their Progenies Measured in the Air of Different Dwellings and Workplaces and Resulting Alpha Radiation Doses to the Eyes of Individuals.

Health Phys

November 2017

*Nuclear Physics and Techniques Laboratory, Faculty of Sciences Semlalia, BP.2390, University of Cadi Ayyad, Marrakech, Morocco (URAC-15 Research Unit Associated to the CNRST, Rabat, Morocco).

In order to assess radiation doses to the eyes of individuals, concentrations of Rn, Rn and their decay products were measured in different dwelling rooms, café rooms and vehicle repair shops by using two different types of solid state nuclear track detectors (SSNTDs). The influence of building materials, pollution and ventilation rate on radon and thoron alpha-activities inside the studied locations has been investigated. A new dosimetric model was developed for evaluating radiation doses to the eyes of individuals due to alpha particles emitted by the radon and thoron series in the air of the studied dwelling rooms, café rooms, and vehicle repair shops.

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Antioxidative/oxidative effects and retarding osteoconductivity of ciprofloxacin-loaded porous polyvinyl alcohol/bioactive glass hybrid.

Med Biol Eng Comput

January 2017

Laboratory of Sciences Material and Environment, Faculty of Sciences of Sfax, B.P. 1171, 3000, Sfax, Tunisia.

This study investigated the effect of bioglass (melting)-polyvinyl alcohol (BG (M)-PVA) and bioglass (melting)-polyvinyl alcohol-20 %ciprofloxacin (BG(M)-PVA-20Cip) in improving antioxidant activity and regenerating bone capacity. These composites were implanted in femoral condyles of ovariectomized Wistar rats and compared to that of controls groups. After the different period of implantation (15, 30, 60 and 90 days), the treatment of ovariectomized rats with BG(M)-PVA-20Cip showed a significantly higher malondialdehyde concentration when compared to that of BG(M)-PVA group.

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