Results 81 to 90 of about 18,337 (296)

Desertification Risk: Bibliometric Analysis and Future Research Directions

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Desertification, driven by climatic and anthropogenic factors, is one of the most pressing global environmental challenges, causing significant economic, ecological, and social consequences. A bibliometric analysis was performed to identify research trends and gaps in the desertification risk topic.
Fatima‐Ezzahrae Imam   +5 more
wiley   +1 more source

Static and Dynamic Analysis of Porous Gas Bearings Lubricated With Air, Refrigerant R‐134a, Helium and Hydrogen

open access: yesLubrication Science, EarlyView.
ABSTRACT Porous gas bearings (PGBs) enable high‐speed, oil‐free operation in modern rotating machinery. This study develops a coupled thermo‐hydrodynamic (THD) model for a cylindrical porous gas bearing lubricated with four working fluids—air, R‐134a, helium and hydrogen.
S. Bechiri, B. Bouchehit, B. Bou‐Saïd
wiley   +1 more source

Effect of Welding Parameters in the Microstructure and Mechanical Properties of Friction-Welded Joints of 100Cr6 Steel

open access: yesIranian Journal of Materials Science and Engineering, 2019
In this study, high-carbon, chromium alloy steel (100Cr6) having the initial spheroidized microstructure was welded using the rotary friction welding method.
M. Demouche, E. H. Ouakdi, R. Louahdi
doaj  

Missense Variants in the A Isoform of FGF13 as a Novel Cause of Paroxysmal Dyskinesia

open access: yesMovement Disorders, EarlyView.
Abstract Background Pathogenic variants within the unique N‐terminal inactivation particle of FGF13 isoform A (FGF13A) have so far been associated only with an X‐linked dominant epileptic encephalopathy (DEE). Objective The aim was to expand the clinical and molecular spectrum of FGF13A‐related disorder.
Cyril Mignot   +22 more
wiley   +1 more source

Exploration of the Phytochemical and Antidiabetic Properties of Teucrium polium: A Natural Asset for Type 2 Diabetes Management

open access: yesChemistryOpen, EarlyView.
Teucrium polium shows antidiabetic activity with its phytochemical composition and biological activities. The essential oil is rich in carvacrol, thymol, γ‐terpinene, and o‐cymene, while the aqueous and hydroethanolic extracts are characterized by poliumoside, verbascoside, isorhamnetin‐3‐O‐rutinoside, and apigenin‐7‐rutinoside. Antioxidant activity is
Hajar El Ouadni   +10 more
wiley   +1 more source

Nonlocal singular problem with integral condition for a second-order parabolic equation

open access: yesElectronic Journal of Differential Equations, 2015
We prove the existence and uniqueness of a strong solution for a parabolic singular equation in which we combine Dirichlet with integral boundary conditions given only on parts of the boundary.
Ahmed Lakhdar Marhoune, Ameur Memou
doaj  

Plantes antilithiasiques utilisées en médecine traditionnelle dans la ville d'Oran, Algérie Approche ethnobotanique et phytochimique Antilithiasic plants used in traditional medicine in Oran, Algeria: Ethnobotanical survey and phytochemical screening

open access: yes, 2016
Une enquete ethnobotanique realisee a Oran (Algerie) durant une periode de deux mois (janvier et fevrier 2014) aupres des herboristes et des traditherapeutes a permis d’inventorier 35 plantes utilisees dans le traitement de la lithiase urinaire.
W. Khitri, Ali Khalfa
semanticscholar   +1 more source

Dental composites: a comprehensive review on formulation, properties and recent developments

open access: yesPolymer International, EarlyView.
Dental composites are essential in modern restorative dentistry; this review covers their development, composition, key properties and recent advances, highlighting new technologies for optimizing materials and improving clinical outcomes. Abstract Dental composites have evolved considerably since their introduction, becoming the cornerstone of modern ...
Rayenne Latoui   +2 more
wiley   +1 more source

La quête d’identité professionnelle des journalistes de la presse en ligne en Algérie : Pratiques, compétences et profils

open access: yes, 2016
Nous abordons ici la question de l’identite professionnelle des journalistes de la presse en ligne en Algerie. Il s’agit de souligner, dans un premier temps, la pertinence sociale et scientifique du sujet, puis de mobiliser les elements theoriques qui ...
A. Merah
semanticscholar   +1 more source

Digitizing collections to unlock the full potential of palynology: A case study with the Smithsonian palynology collection

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Large palynological collections have been built over decades and contain vital information. However, they are often difficult to access and use effectively. What is the point of having such collections if they are not fully utilizable? To solve this problem, we digitized the Smithsonian palynological collection using both light and confocal microscopy.
Carlos Jaramillo   +37 more
wiley   +1 more source

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