54 results match your criteria: "Ibn-Khaldoun University.[Affiliation]"

Objectives: This study aimed to comprehensively assess the weight status, snack consumption, and physical activity levels among primary schoolchildren, with a focus on both rural and urban areas.

Methods: This cross-sectional study surveyed 557 primary schoolchildren aged 6 to 12 years, covering general identification (age, gender), anthropometric measurements (body weight, height, waist, and hip circumference), food patterns (frequency of food consumption), and sports activities.

Results: Using CDC body mass index thresholds, we identified a 25% prevalence of obesity and over 17% for overweight, revealing a significant urban-rural disparity.

View Article and Find Full Text PDF

This study aimed to explore the relationships between study variables that directly and indirectly affect students' beliefs and academic adaptation. A measurement tool model was used to assess participants' 'academic adjustment' (academic motivation, academic lifestyle, academic achievement), basic psychological needs factors (autonomy, competence, relatedness), beliefs about assessment factors (benefit for learning, fairness), classroom participation, and students' FLP anxiety. Explanatory factor analysis (EFA) and confirmatory factor analysis (CFA) were employed to validate the questionnaires.

View Article and Find Full Text PDF

The increasing usage of smartphones globally necessitates the creation of reliable and valid scales to evaluate their psychological effects, particularly within academic settings such as universities. The current study aimed to identify the factorial structure of the Smartphone Addiction Inventory (SPAI) in the Republic of Yemen. The sample consisted of 1920 university students (1136 males and 784 females).

View Article and Find Full Text PDF

Effects of leaf extract and purified oleuropein on ethanol-induced gastric ulcer in male Wistar rats.

Iran J Basic Med Sci

January 2024

Laboratory of Bioresources, Integrative Biology and Exploiting, Higher Institute of Biotechnology of Monastir, University of Monastir, Tunisia.

Objectives: Evaluating the effect of fresh Oleaster leaf extract (OLE) and purified oleuropein (OLR) on ethanol-induced gastric ulcers in rats. HPLC analysis demonstrates the presence of various polyphenol compounds such as ligstroside, luteolin derivative, oleuropein, and comselogoside.

Materials And Methods: Gastric ulcer was induced by administration of ethanol by the gastric gavage route.

View Article and Find Full Text PDF

infection is widespread in 50% of the world's population and is associated with gastric ulcers and related disorders that ultimately culminate in gastric cancer. Levofloxacin-based, or clarithromycin-based, triple therapy is frequently used to inhibit the bacterial urease enzyme for the eradication of . A comprehensive investigation based on the urease inhibitory profiles of antibiotics and their computational implications is lacking in the scientific literature.

View Article and Find Full Text PDF

Global polls have shown that people in high-income countries generally report being more satisfied with their lives than people in low-income countries. The persistence of this correlation, and its similarity to correlations between income and life satisfaction within countries, could lead to the impression that high levels of life satisfaction can only be achieved in wealthy societies. However, global polls have typically overlooked small-scale, nonindustrialized societies, which can provide an alternative test of the consistency of this relationship.

View Article and Find Full Text PDF
Article Synopsis
  • Montelukast is a leukotriene receptor antagonist used for asthma and allergic rhinitis, but recent studies reveal it has inhibitory effects on various enzymes like α-glucosidase and urease, indicating potential additional uses.
  • Kinetic studies show that montelukast exhibits competitive inhibition and down-regulates alkaline phosphatase in breast cancer cells, suggesting it may have implications in cancer treatment.
  • The drug's structural characteristics enhance its interaction with multiple targets, indicating a possible link to side effects and encouraging further research to explore its repurposing beyond asthma and allergies.
View Article and Find Full Text PDF

This study aimed to evaluate the anti-inflammatory and analgesic properties of the methanolic extract of L. in small animal (rats and mice model). The current treatment for febrile conditions often involves the use of non-steroidal anti-inflammatory drugs (NSAIDs), which can have adverse effects, particularly gastrointestinal ulcers.

View Article and Find Full Text PDF

Azo dyes make up a major class of dyes that have been widely studied for their diverse applications. In this study, we successfully applied nano-γ-FeO/TiO as a nanocatalyst to improve the photodegradation efficiency of azo dyes (Orange G (OG) dye as a model) from aqueous solution under white light-emitting diode (LED) irradiation. We also investigated the degradation mechanisms and pathways of OG dye as well as the effects of the initial pH value, amount of HO, catalyst dosage, and dye concentration on the degradation processes.

View Article and Find Full Text PDF

In this work, we consider a model of two microbial species in a chemostat in which one of the competitors can produce a toxin (allelopathic agent) against the other competitor, and is itself inhibited by the substrate. The existence and stability conditions of all steady states of the reduced model in the plane are determined according to the operating parameters. With Michaelis-Menten or Monod growth functions, it is well known that the model can have a unique positive equilibrium which is unstable as long as it exists.

View Article and Find Full Text PDF

The search for new bioactive substances with anticancer activity and the understanding of their mechanisms of action are high priorities in the research effort toward more effective cancer treatments. In this article, we analyzed, for the first time, the chemical composition of the essential oil (EO) hydrodistilled from the aerial parts of Ten. (Leguminosae) by GC-MS.

View Article and Find Full Text PDF
Article Synopsis
  • The article explores the traditional knowledge surrounding acorn-based bread by documenting its ingredients, preparation techniques, and consumption practices across several Mediterranean, Central Asian, and Middle Eastern countries.
  • Through qualitative research involving 67 participants, the study uncovers variations in how acorn bread is made and used, emphasizing its historical role primarily as a famine food over the last two centuries.
  • The findings suggest that reviving acorn products and their cultural significance could promote sustainable development, enhance food security in vulnerable regions, and inspire innovative food products aligned with current food trends.
View Article and Find Full Text PDF

As an Indigenous community of Algeria and the broader Sahel, the Tuareg hold unique ecological knowledge, which might contribute to broader models of place-based climate change impacts. Between January and April 2019, we carried out semi-structured interviews ( = 23) and focus group discussions ( = 3) in five villages of the province of Illizi, Algeria, to document the local Tuareg community's timeline and ecological calendar, both of which are instruments used to understand place-based reports of climate change impacts. The livelihoods of the Tuareg of Illizi are finely tuned to climate variability as reflected in changes reported in the cadence of events in their ecological calendar (marked by cyclical climatic and religious events).

View Article and Find Full Text PDF

Presently, an important step from basic research to practical applications is synthesizing nanostructured materials. Metal-organic structures, as well as coordination polymers, are a diverse group of materials with a wide range of potential and properties applications. It has been difficult to get these materials into commercial use because of many drawbacks.

View Article and Find Full Text PDF

Determining student motivation within the context of Learning Analytics is fundamental for academic students to realize their educational goals. We aim to perceive the student's motivation state at a high level of abstraction and act accordingly to deal with motivation issues. We investigate how Model-Driven Engineering paradigms capture the essence of a motivation domain and provide deep automation in stimulating students' tasks.

View Article and Find Full Text PDF

This paper presents an optimal control scheme for a Permanent Magnet Synchronous Generator (PMSG) coupled to a wind turbine operating without a position sensor. This sensorless scheme includes two observers: The first observer uses the flux to estimate the speed. However, an increase in the temperature or a degradation of the permanent magnet characteristics will result in a demagnetization of the machine causing a drop in the flux.

View Article and Find Full Text PDF

In this research, we reported on the formation of highly porous foam SrTiO/NiFeO (STO/NFO) heterostructure by joint solid-state and sol-gel auto-combustion techniques. The colloidal assembly process is discussed based on the weight ratio x (x = 0, 25, 50, 75, and 100 wt %) of NiFeO in the STO/NFO system. We proposed a mechanism describing the highly porous framework formation involving the self-assembly of SrTiO due to the gelation process of the nickel ferrite.

View Article and Find Full Text PDF

Assessment of artemisinin and antioxidant activities of three wild Artemisia species of Algeria.

Nat Prod Res

December 2022

Animal Biotechnology Laboratory, Biotechnology and Agriculture Division, Biotechnology Research Center (C.R.Bt), Ali Mendjeli, Constantine, Algeria.

Artemisinin, a natural product, has received considerable attention in the last few years as a potent antimalarial drug.This study reports the presence of Artemisinin in three Algerian wild Artemisia species assessed by HPLC method: (AH), subsp. glutinosa (AC), and subsp sahariensis (AJ).

View Article and Find Full Text PDF

The Mechanisms of Collective Resilience in a Crisis Context: The Case of The 'COVID-19' Crisis.

Glob J Flex Syst Manag

January 2022

Assistant professor at the Faculty of Economics and Management of Nabeul, Campus Universitaire Mrezgua, 8000 Nabeul, Tunisie.

In this research, we claim to join the efforts of practitioners and researchers to provide managerial responses to an unprecedented health crisis such as COVID-19. To do this, we study the concept of 'collective resilience' as a mechanism for responding to crisis in the Tunisian context. The aim of this research is to explain the impact of collective resilience processes on the ability of organizations to withstand crisis.

View Article and Find Full Text PDF

Background: Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous environmental organic contaminants generated by incomplete combustion of organic materials that are widely distributed in soils.

Objectives: This study represents the first attempt to examine the health toxicity of 16 detected PAHs in contaminated soil, via different exposure pathways to populations in northwestern Algeria.

Methods: The toxicity equivalency quotients (TEQ) of PAHs were evaluated.

View Article and Find Full Text PDF

This research aims to study a process of steeping in the n-heptane, used for reducing the migration of additives contained initially in toys for babies plasticized with di-octylphtalate (DOP) based on poly (vinyl chloride) (PVC) and stabilized with epoxidized sunflower oil (ESO). Two formulations were carried out at different levels of DOP plasticizers (15% and 45%). The migration tests were conducted in the synthetic saliva in the absence and in the presence of α-amylase with or without agitation at 37° C for 1, 3, and 6 h.

View Article and Find Full Text PDF

Microcystins (MCs) are hepatotoxic cyanotoxins implicated in several incidents of human and animal toxicity. Microcystin-(Lysine, Arginine) or MC-LR is the most toxic and encountered variant of MCs where oxidative stress plays a key role in its toxicity. This study investigated the oxidative damages induced in the liver and heart of Balb/C mice by an intraperitoneal injected acute dose of MC-LR.

View Article and Find Full Text PDF

Ruminant pestiviruses in North Africa.

Prev Vet Med

November 2020

Wildlife Conservation Medicine Research Group (WildCoM), Departament de Medicina i Cirurgia Animals, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain; UAB, Centre de Recerca en Sanitat Animal (CReSA, IRTA-UAB), Campus de la Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain. Electronic address:

Ruminant pestiviruses are widely distributed worldwide, causing congenital disease and massive economic losses. Although ruminant production is an important economic sector in North Africa, the knowledge about pestiviruses is scarce. The present study aimed at assessing the presence of Pestivirus in cattle in Algeria, and to review the data available on ruminant pestiviruses in North Africa.

View Article and Find Full Text PDF

Resistance to multiple first-line antibiotics among from poultry in Western Algeria.

Vet World

February 2020

Nursing Department, Faculty of Natural Sciences and Life, Abdelhamid Ibn Badis University, Mostaganem, Algeria.

Background And Aim: can cause a number of serious infections both in human and veterinary medicine. Their management is increasingly complicated by the emergence and dissemination of multiresistance to various first-line antimicrobial agents. This study aimed to evaluate the resistance level to the commonly used antibiotics, with a focus on the first-line antimicrobial agents, in strains isolated from poultry in Western Algeria.

View Article and Find Full Text PDF

An inventory of Lepidoptera in the Theniet El Had National Park (PNTEH), Algeria, revealed 86 taxa, both butterflies and moths. The specimens were collected in 68 localities distributed over ten cantons within the park in the period 2015-2017. A preliminary faunistic list is compiled as a base-line contribution to the study of adult Lepidoptera in this park.

View Article and Find Full Text PDF