Publications by authors named "Abdellah Tahiri"

The exploration of perovskite compounds incorporating actinide and divalent elements reveals remarkable characteristics. Focusing on PbBkO, RaBkO, and SrBkO, these materials were studied using density functional theory (DFT) via the CASTEP code to analyze their electronic, optical, and mechanical properties. The results show semiconductor behavior, with respective band gaps of 1.

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Background: The most prevalent subtype of non-Hodgkin lymphoma is diffuse large B-cell lymphoma (DLBCL). Germinal center B-cell (GCB) and non-germinal center B-cell (non GCB) are the two main biologically different molecular subtypes identified utilizing an immunohistochemistry-based approach.

Aim: Our objective in this study is to analyze the impact of immunohistochemical subtypes of DLBCL (GCB or non GCB) on demographic and clinicopathological parameters, response to chemotherapy and survival outcomes.

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Apple scab, caused by the pathogenic fungus , can result in significant economic losses. The frequent use of fungicidal products has led to the emergence of isolates resistant to commonly used active substances. Therefore, biological control offers a sustainable alternative for managing apple scab.

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Article Synopsis
  • - This paper introduces a new method for digital watermarking of color images that enhances copyright protection and security by utilizing advanced mathematical techniques like moment and wavelet transformations alongside chaotic systems.
  • - The researchers improved efficiency by extending classical methods to quaternary moments, allowing them to bypass decomposing color images before applying transformations, which cuts down on computational effort.
  • - Their innovative watermarking system shows better performance compared to existing methods in terms of security, storage capacity, attack resistance, and image invisibility, thanks to techniques like QR decomposition and a modified chaotic map for enhanced robustness.
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Since the late nineteenth century, the agricultural sector has experienced a tremendous increase in chemical use in response to the growing population. Consequently, the intensive and indiscriminate use of these substances caused serious damage on several levels, including threatening human health, disrupting soil microbiota, affecting wildlife ecosystems, and causing groundwater pollution. As a solution, the application of microbial-based products presents an interesting and ecological restoration tool.

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Introduction: Cutaneous squamous cell carcinoma (cSCC) is the second most common skin cancer, accounting for 20% of malignant skin tumors. Dermoscopy is a very useful tool for diagnosing cSCC, and its findings are confirmed through histopathological studies.

Objectives: to describe the different dermoscopic structures of invasive cSCC and investigate their association with the clinical form and histopathological grade of differentiation.

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Accessory breast tissue (supernumerary breast tissue) is due to the absence of regression of the primitive milk lines during embryonic life which extends from the axilla to the groin. It is mostly located in the axilla where it is often confused with the axillary extension of the breast, or any pathological process occurring in armpits. Ectopic mammary glands should not be misdiagnosed as it can potentially undergo the same pathological processes that occur in a normally located breast including benign or malignant breast tumors.

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The purpose of the current study was to derive the local diagnostic reference levels (LDRLs) for paediatric abdominal-pelvis (AP) and chest-abdominal-pelvis (CAP) computed tomography in Morocco. The data were gathered retrospectively from two hospitals for 6 months. The LDRLs were defined by volume CT dose index (CTDIvol), dose-length product (DLP) per sequence, DLP per procedure and size-specific dose estimates (SSDE).

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Saffron petals, which are the main by-products of Crocus sativus L. (Iridaceae family), are produced in large quantities and are known for their many beneficial properties. In this regard, this study aims to investigate the phenolic composition and antibacterial properties of hydroethanolic extracts from Crocus sativus L.

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During the postharvest period, citrus fruits are exposed to , and . Pesticides such as imazalil (IMZ), thiabendazole (TBZ), orthophenylphenol (OPP), and guazatine (GUA) are commonly used as antifungals. Glyphosate (GP) is also used in citrus fields to eliminate weed growth.

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A decline of various grapevines ( L.) in the province of Doukkala in Morocco was observed in 2021. The causal pathogen was identified as based on morphological characteristics and phylogenetic analysis of the internal transcribed region (ITS), the β-tubulin gene (TUB) and calmodulin (cmdA).

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Several diseases affect the productivity of olive trees, including root rot disease caused by genera. Chemical fungicides, which are often used to manage this disease, have harmful side effects on humans as well as environmental components. Biological management is a promising control approach that has shown its great potential as an efficient eco-friendly alternative to treating root rot diseases.

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Dermatofibrosarcoma protuberans (DFSP) is a rare and slowly growing cutaneous tumor with high risk of local invasion and recurrence. Here, we report a case of a DFSP of the anterior abdominal wall diagnosed in a 45-year-old woman. The clinical examination showed an indurated well-limited oval mass localized in the supra-umbilical level and measuring 5 cm by 3 cm.

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Grapevine trunk diseases (GTD) are currently one of the most devastating and challenging diseases in viticulture, leading to considerable yield losses and a remarkable decline in grapevine quality. The identification of the causal agents is the cornerstone of an efficient approach to fighting against fungal diseases in a sustainable, non-chemical manner. This review attempts to describe and expose the symptoms of each pathology related to GTD, the modes of transmission, and the harmfulness of recently reported agents.

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COVID-19 pandemic is facing healthcare professionals with unprecedented challenges, which might alter their mental health. We targeted assessing depression, generalized anxiety, and post-traumatic stress disorder (PTSD) of Moroccan medical doctors during the COVID-19 pandemic; this would allow identifying the associated factors. A cross-sectional national study was carried out on 1267 exposed and unexposed public health medical doctors to COVID-19 patients.

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This study aimed at evaluating the effect of environmental factors temperature and water potential (Ψw) on the growth of Neocosmospora (Fusarium) solani and three Fusarium species (F. oxysporum, F. equiseti and F.

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Citrus trees face threats from several diseases that affect its production, in particular dry root rot (DRR). DRR is a multifactorial disease mainly attributed to () and other several species of and spp. Nowadays, biological control holds a promising control strategy that showed its great potential as a reliable eco-friendly method for managing DRR disease.

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The purpose of this study was to establish the diagnostic reference levels (DRLs) for paediatric head computed tomography (CT) in Morocco and to assess the effective doses received during head CT examinations. The data of 1007 patients were collected retrospectively from Moroccan university children's hospitals. The sample was classified per age group:<1, 1-5, 5-10 and 10-15 years.

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Darier and Ferrand dermatofibrosarcoma (DFS) is a rare skin tumor characterized by its local aggressiveness and a high risk of recurrences. Prognosis depends essentially on the quality of treatment. Complete response in Darier and Ferrand dermatofibrosarcoma with healthy margins, initially judged inoperable after 1 year of neoadjuvant imatinib-based treatment, has been rarely described in literature.

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The effectiveness of antagonistic bacteria to control Erwinia amylovora was evaluated under in vitro and field conditions. Among 61 bacteria isolated from soil and flowers of fire blight host plants of different Moroccan areas, 20 bacterial isolates showed higher antagonistic activity against the pathogen during agar-diffusion-test, attached blossoms assay and in a bioassay on immature pear fruits. Effective isolates were identified by using biochemical tests and 16 S rRNA genes sequencing.

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Article Synopsis
  • - Gastrointestinal stromal tumors (GIST) are the most common tumors in the digestive system, but there are no clear biological markers to predict their behavior; this study looked at the MDM2 oncoprotein as a potential marker.
  • - In a study of 35 GIST cases from a Moroccan hospital, researchers assessed MDM2 levels using immunohistochemistry, finding that 40% of tumors tested positive for MDM2, mostly among high-risk and metastatic cases.
  • - The findings indicate that positive MDM2 expression is linked to worse outcomes in GIST, particularly in terms of metastasis, suggesting it could serve as a negative prognostic indicator.
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Background: Phyllodes tumors (PT) are uncommon biphasic tumors, accounting for less than 1% of all breast primary neoplasms. They form a wide variety of tumors ranging from benign to malignant. Several histological features are used to grade PT into 3 categories: benign (grade I), borderline (grade II) and malignant (grade III) tumors.

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Background: The occurrence of lung metastasis from benign uterine leiomyomas is rarely reported especially in post menopausal women. The pathogenesis of these metastatic benign tumors still remains a subject of various speculations.

Case Presentation: A 57-year-old woman presented with a chronic cough and dyspnea.

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Background: Despite its rich vasculature, the penis is rarely involved by metastasis. Since the first description of penile metastasis in 1870, fewer than 500 cases have been reported in the literature. The pelvic organs are the main source of primary tumors that metastasize to the penis.

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Background: Histological acute appendicitis patterns associated with Enterobius vermicularis is an extremely rare finding. The exact role of this parasite in acute appendicitis is controversial as usually resected specimens show no evidence of histological inflammation.

Case Presentation: We present herein a case of a 21-year-old male Arabic patient who presented with clinical syndrome of acute appendicitis.

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