Results 91 to 100 of about 89,607 (287)

Raman Microscopy at the Organic–Inorganic Interfaces in Human Calcified Aortic Valves Shows the Co‐Existence of Whitlockite Crystals and Carbonated Hydroxyapatite‐Mineralized Collagen Fibrils

open access: yesAdvanced Functional Materials, EarlyView.
This study advances our understanding of aortic valve stenosis by capturing spatially resolved chemical and structural changes at the nanoscale. The findings highlight the potential of combined Raman and electron microscopy for understanding calcification mechanisms across diverse tissue types.
Robin H. M. Van der Meijden   +11 more
wiley   +1 more source

Anti-infectivity efficacy and pharmacokinetics of WHO recommended single low-dose primaquine in children with acute Plasmodium falciparum in Burkina Faso: study protocol

open access: yesTrials
Background Primaquine (PQ) has activity against mature P. falciparum gametocytes and proven transmission blocking efficacy (TBE) between humans and mosquitoes. WHO formerly recommended a single transmission blocking dose of 0.75 mg/kg but this was little
Alphonse Ouédraogo   +9 more
doaj   +1 more source

Variations pédagogiques pour une formation agroécologique: Observation d’une expérience de formation agroécologique conduite avec l’exploitation d’un lycée agricole. [PDF]

open access: yes, 2016
International audienceL'accompagnement du changement agroécologique passe par une confrontation à l'incertitude et un processus de résolution. Lors d'une expérience de terrain à « livre ouvert » sur l'exploitation du lycée agricole, les étudiants ...
Gracia, Jean-Claude
core   +2 more sources

Control of Polarization and Polar Helicity in BiFeO3 by Epitaxial Strain and Interfacial Chemistry

open access: yesAdvanced Functional Materials, EarlyView.
In BiFeO3 thin films, the interplay of interfacial chemistry, electrostatics, and epitaxial strain is engineered to stabilize homohelicity in polarization textures at the domain scale. The synergistic use of a Bi2O2‐terminated Aurivillius buffer layer and a highly anisotropic compressive epitaxial strain offers new routes to control the polar‐texture ...
Elzbieta Gradauskaite   +5 more
wiley   +1 more source

Dimension affective en mathématiques recherche-action et matériel didactique / [PDF]

open access: yes
Également disponible en version papierTitre de l'écran-titre (visionné le 10 fév. 2010)Bibliogr.: p. 165-168Index: p.
Collège André-Laurendeau   +1 more
core  

La commercialisation des produits de l'agriculture d'abattis de l'Ouest Guyanais : éléments d'analyse et pistes d'action. Rapport de mission auprès du projet de recherche-action de l'Ouest Guyanais, du 21 mars au 1 avril 2000 [PDF]

open access: yes, 2000
Une mission d'appui a été effectuée auprès du volet "commercialisation et transformation des produits" du Projet de Recherche-Action de l'Ouest Guyanais.
Sautier, Denis
core  

Stabilization of Miscible Aqueous Phases via Diffusion‐Controlled Multifunctional Nanoparticle‐Ligand Complexation

open access: yesAdvanced Functional Materials, EarlyView.
This study presents a versatile approach to harnessing miscible aqueous domains, enabling liquid‐in‐liquid compartmentalization using a barrier formed in situ rather than bulk immiscibility. The barrier forms upon the complexation of multifunctional nanoparticles and ligands at the contact boundary of aqueous phases.
Seyyed Alireza Hashemi   +7 more
wiley   +1 more source

Meta‐Rod Mechanical Metamaterials With Programmable Reconfiguration

open access: yesAdvanced Functional Materials, EarlyView.
Existing mechanical metamaterials achieve programmable large deformations in planar square or cubic configurations, restricted by required complex boundary conditions. This research proposes a 1D metamaterial, Meta‐rod, with linear, bending, twisting, area, and volume deformation modes.
Atharva Pande, Lyes Kadem, Hang Xu
wiley   +1 more source

Projet recherche action dans l'Ouest Guyanais. Juillet 1999 - août 2001. Rapport d'exécution du projet [PDF]

open access: yes, 2001
Le projet de recherche action dans l ' Ouest Guyane, en lien étroit avec les services de la Préfecture de Guyane et les représentants des communautés territoriales de l ' Ouest Guyane, a permis d' acquérir de nombreuses références et d'élargir les ...
Angé, Alain
core  

Imaging of Biphoton States: Fundamentals and Applications

open access: yesAdvanced Functional Materials, EarlyView.
Quantum states of two photons exhibit a rich polarization and spatial structure, which provides a fundamental resource of strongly correlated and entangled states. This review analyzes the physics of these intriguing properties and explores the various techniques and technologies available to measure them, including the state of the art of their ...
Alessio D'Errico, Ebrahim Karimi
wiley   +1 more source

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