41 results match your criteria: "University Ferhat ABBAS Setif-1[Affiliation]"

The alarming rise in environmental pollution, depletion of global resources, and increasing health consciousness have placed significant pressure on the development of eco-friendly, sustainable materials. Consequently, green, environmentally friendly materials made from biobased and/or biodegradable sources are gaining recognition and political support as sustainable alternatives to petroleum-based, non-biodegradable materials. Bio-based packaging materials, in particular, are widely used across all industrial sectors, with a growing demand for solutions that preserve food quality and extend shelf life.

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Power control of an autonomous wind energy conversion system based on a permanent magnet synchronous generator with integrated pumping storage.

Sci Rep

November 2024

Department of Theoretical Electrical Engineering and Diagnostics of Electrical Equipment, Institute of Electrodynamics, National Academy of Sciences of Ukraine, Beresteyskiy, 56, Kyiv-57, Kyiv, 03680, Ukraine.

Wind energy plays a crucial role as a renewable source for electricity generation, especially in remote or isolated regions without access to the main power grid. The intermittent characteristics of wind energy make it essential to incorporate energy storage solutions to guarantee a consistent power supply. This study introduces the design, modeling, and control mechanisms of a self-sufficient wind energy conversion system (WECS) that utilizes a Permanent magnet synchronous generator (PMSG) in conjunction with a Water pumping storage station (WPS).

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Fault detection, classification, and location prediction are crucial for maintaining the stability and reliability of modern power systems, reducing economic losses, and enhancing system protection sensitivity. This paper presents a novel Hierarchical Deep Learning Approach (HDLA) for accurate and efficient fault diagnosis in transmission lines. HDLA leverages two-stage transformer-based classification and regression models to perform Fault Detection (FD), Fault Type Classification (FTC), and Fault Location Prediction (FLP) directly from synchronized raw three-phase current and voltage samples.

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In developing countries, orphan legumes stand at the forefront in the struggle against climate change. Their high nutrient value is crucial in malnutrition and chronic diseases prevention. However, as the 'orphan' definition suggests, their seed systems are still underestimated and seed production is scanty.

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This study aims to assess hepatoprotective properties of . Decoction was used to prepare the aqueous extract. The preliminary cytotoxicity evaluated against Caco 2 and RAW 264 cells demonstrate no cytotoxic effect.

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In the present work, we report on theoretical studies of thermodynamic properties, structural and dynamic stabilities, dependence of unit-cell parameters and elastic constants upon hydrostatic pressure, charge carrier effective masses, electronic and optical properties, contributions of interband transitions in the Brillouin zone of the novel TlHgGeSe crystal. The theoretical calculations within the framework of the density-functional perturbation theory (DFPT) are carried out employing different approaches to gain the best correspondence to the experimental data. The present theoretical data indicate the dynamical stability of the title crystal and they reveal that, under hydrostatic pressure, it is much more compressible along the a-axis than along the c-axis.

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Conductive polymers, such as polyaniline (PANI), have interesting applications, ranging from flexible electronics, energy storage devices, sensors, antistatic or anticorrosion coatings, etc. However, the full exploitation of conductive polymers still poses a challenge due to their low processability. The use of compatible stabilizers to obtain dispersible and stable colloids is among the possible solutions to overcome such drawbacks.

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Effect of chemical treatments of arundo donax L. fibre on mechanical and thermal properties of the PLA/PP blend composite filament for FDM 3D printing.

J Mech Behav Biomed Mater

April 2024

Laboratory of Biopolymers and Derivates, Institute of Tropical Forestry and Forest Products (INTROP), Universiti Putra Malaysia, UPM, Serdang 43400, Malaysia.

Arundo donax L. is investigated in this study as a suitable reinforcing agent for PLA/PP waste blend 3D printing filament. To improve the compatibility of the fibre and polymer, the Arundo fibre was chemically modified using alkali and silane treatment.

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Viral hepatitis E, zoonotic transmission in Algeria.

Virusdisease

September 2023

Department of Infectious Diseases, Faculty of Medicine, University Ferhat Abbas Setif 1, Sétif, Algeria.

Viral hepatitis E, a major cause of acute viral hepatitis in adults, is a global public health problem. The zoonotic potential of the virus is currently accepted in developed countries. In developing countries, where transmission is mainly enteric, data on the animal reservoir are very limited.

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Objectives: Novel noise reduction and QRS detection algorithms in Electrocardiogram (ECG) signal based on Empirical Mode Decomposition (EMD), Ensemble Empirical Mode Decomposition (EEMD) and the Modified Sigmoid Thresholding Function (MSTF) are proposed in this paper.

Methods: EMD and EEMD algorithms are used to decompose the noisy ECG signal into series of Intrinsic Mode Functions (IMFs). Then, these IMFs are thresholded by the MSTF for reduction of noises and preservation of QRS complexes.

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Background: Genital HPV infection is recognized worldwide as one of the most common, if not the most common, sexually transmitted infection. Several studies have shown a higher prevalence of HPV infection in women living with HIV (WLWH). We aimed to determine the prevalence of HPV, the circulating genotypes, and its association with risk factors among Algerian WLHIV.

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In this study, we have synthesized a new molecule labeled HBPA. Its molecular structure was determined by spectroscopic methods such as: FT-IR, NMR (H, C and P); our compound is subjected to two antioxidant activities assays: DPPH scavenging and ferric reducing antioxidant power (FRAP); in the results, HBPA was expanded remarkable inhibition when compared especially to standard BHT with values of 14.936±0.

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This study aims to identify and assess the antimicrobial activity of endophytic fungi found in the endemic plant Abies numidica. Among all isolates, the ANT13 isolate demonstrated significant antimicrobial activity in the preliminary screening, particularly Staphylococcus aureus ATCC 25923 and Candida albicans ATCC 1024, with inhibition zones of 22 and 21.5 mm, respectively.

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The use of biosorption as a strategy for lowering the amount of pollution caused by heavy metals is particularly encouraging. In this investigation, a low-cost and efficient biosorbent, Inula Viscosa leaves were used to remove zinc ions (Zn) from synthetic wastewater. A Fourier transform infrared spectroscopy experiment, a scanning electron microscopy experiment, and an energy dispersive X-ray spectroscopy experiment were used to describe the support.

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Ethnopharmacological Relevance: Species of Echium trygorrhizum Pomel, belonging to the Boraginaceae family, grow wild in North Africa. This plant is used in traditional Algerian medicine for the treatment of Diabetes, Jaundice and Tonsillitis.

Aim Of The Study: To our knowledge, no work has been done on the phytochemistry and biological activities of this plant.

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The effects of cysteine (Cys) and l-methionine (l-Met) on copper corrosion inhibition were examined in 1 M HNO solution for short and long exposure times. Potentiodynamic polarization (PDP) and electrochemical impedance spectroscopy (EIS) were used. The EIS determined the potential for zero charges of copper (PZC) in the inhibitor solution.

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An efficient optimization technique based on a metaheuristic and an artificial neural network (ANN) algorithm has been devised. Particle swarm optimization (PSO) and ANN were used to estimate the removal of two textile dyes from wastewater (reactive green 12, RG12, and toluidine blue, TB) using two unique oxidation processes: Fe(II)/chlorine and HO/periodate. A previous study has revealed that operating conditions substantially influence removal efficiency.

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The processability of conductive polymers still represents a challenge. The use of potato starch as a steric stabilizer for the preparation of stable dispersions of polyaniline (emeraldine base, EB) is described in this paper. Biocomposites are obtained by oxidative polymerization of aniline in aqueous solutions containing different ratios of aniline and starch (% /).

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Evaluation of the and antioxidant potential of L. against toluene-induced liver injuries in rats.

Vet World

February 2022

Department of Biology, Laboratory of Animal Ecophysiology, Faculty of Sciences, University Badji Mokhtar-Annaba, Annaba 23000, Algeria.

Background And Aim: Humans are more frequently exposed to chemicals in daily life by inhalation of indoor and outdoor air. However, abusers and workers are the most exposed to those chemicals and their health risks particularly, liver diseases. The present study investigated the protective effects of pomegranate juice (PJ) () and pomegranate peel aqueous extract (PAE) supplementation against toluene (Tol)-induced hepatotoxicity in rats.

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Density functional theory (DFT), time-dependent density functional theory (TDDFT), quantum theory of atoms in molecules (QTAIM), and extended transition state natural orbitals for chemical valence (ETS-NOCV) have all been used to investigate the physicochemical and biological properties of curcumin and three complexes, i.e., Cur-M (M = Ni, Cu, and Mg).

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PENELOPE simulations and experiment for 6 MV clinac iX accelerator for standard and small static fields.

Appl Radiat Isot

August 2021

Physics Department, Faculty of Sciences, Laboratory of Optoelectronic and Devices, University Ferhat Abbas Sétif 1, Algeria; Centre de Lutte Contre le Cancer de Sétif, Algeria.

The goal of this work was to produce accurate data for use as a 'gold standard' and a valid tool for measurements in reference dosimetry for standard/small static field sizes from 0.5 × 0.5 to 10 × 10 cm.

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Effects of physical activity on cell-to-cell communication during type 2 diabetes: A focus on miRNA signaling.

Fundam Clin Pharmacol

October 2021

MINT, UNIV Angers, INSERM 1066, CNRS 6021, IRIS-IBS-CHU, Angers, France.

Article Synopsis
  • Type 2 diabetes (T2D) is a complex disease marked by high blood sugar levels due to issues with insulin secretion and resistance, influenced by various body tissues and their interactions.
  • Recent research highlights the role of microRNAs (miRNAs) in communication between cells, which can impact the progression of T2D.
  • Engaging in physical activity (PA) can lower the risk of developing T2D by enhancing insulin sensitivity and influencing miRNA activity, making it beneficial to adopt PA habits before T2D develops.
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Background: Due to the strong association between the chemistry of medicinal plants and their biological properties, it is important to determine their phytochemical composition to justify experimental tests.

Objective: The aim of this study was to evaluate the in vitro antioxidant and the enzyme inhibitory properties and to identify the bioactive compounds present in the extracts of Ephedra nebrodensis growing in Algeria.

Methods: Total phenolic and flavonoids content in these extracts were quantified by Folin- Ciocalteu and aluminum chloride methods.

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Phenolic profile, safety assessment, and anti-inflammatory activity of Salvia verbenaca L.

J Ethnopharmacol

May 2021

Laboratory of Applied Biochemistry, Faculty of Natural and Life Sciences, University Ferhat Abbas Setif 1, Setif, 19000, Algeria. Electronic address:

Ethnopharmacological Relevance: Salvia species are known to have anti-inflammatory properties, and are traditionally used for healing purposes. Salvia verbenaca is an Algerian plant used for healing wounds and ulcers.

Aim Of The Study: This work aims to assess the acute and subacute safety of S.

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