Results 221 to 230 of about 5,672 (300)

Geochemical and Isotopic Constraints on Long‐Lived Source Enrichment and Mantle Evolution in Paleoproterozoic Cratonic Lamprophyres

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 6, June 2026.
Abstract The cratonic lithospheric mantle records complex metasomatic processes and is frequently tapped by alkaline magmatism, offering a unique opportunity to trace the progressive evolution of the mantle. In the present contribution, we investigate a newly identified calc‐alkaline lamprophyre field from the Neoarchean Jonnagiri Schist Belt, Eastern ...
Sourav Naskar   +6 more
wiley   +1 more source

Incommensurate structure of AlPO4‐5 and its stability

open access: yesActa Crystallographica Section B, Volume 82, Issue 3, Page 344-351, June 2026.
The incommensurately modulated structure of AlPO4‐5 was elucidated by single‐crystal X‐ray diffraction, revealing correlated rotational displacements of AlO4 and PO4 tetrahedra.The incommensurate structure of AlPO4‐5 and its stability have been investigated in detail.
Kazuki Komatsu   +2 more
wiley   +1 more source

The Crystal Chemistry and Topology of Modular Structures. III. 2D and 3D Zeolites Containing Tetrahedral Layers with the Apophyllite-Type Topology. [PDF]

open access: yesMolecules
Aksenov SM   +7 more
europepmc   +1 more source

“Flames Over Persepolis”: New Scientific Evidence Supporting Historical Perspectives

open access: yesArchaeometry, Volume 68, Issue 3, Page 421-433, June 2026.
ABSTRACT This study investigates the burning of Persepolis Terrace, historically attributed to Alexander III in 330 bce. A review of classical accounts and excavation reports, combined with diagnostic surveys, confirms the fire's historicity and provides novel insights.
Maria Letizia Amadori   +10 more
wiley   +1 more source

Fatigue behaviour of root filled teeth: The role of endodontic sealers and restorative techniques

open access: yesEuropean Journal of Oral Sciences, Volume 134, Issue 3, June 2026.
Abstract This in vitro study aimed to evaluate the fatigue behaviour of root canal treated teeth, filled with either AH Plus Jet (AHP) or AH Plus Bioceramic Sealer (AHPB) and rehabilitated with either mesio‐occlusal‐distal (MOD) restorations (direct resin composite) or endocrowns (indirect resin composite).
Andressa Weber Vargas   +5 more
wiley   +1 more source

Physicochemical and remineralisation properties of calcium silicate and glass ionomer cements applied in simulated caries‐affected dentine

open access: yesEuropean Journal of Oral Sciences, Volume 134, Issue 3, June 2026.
Abstract Calcium silicate‐based and glass ionomer cements are often used in caries‐affected dentine. This study investigated the remineralising and physicochemical properties of two calcium silicates and a glass ionomer cement. Human molars with Class I cavities were subjected to pH cycling to simulate caries lesions.
Monika Lukomska‐Szymanska   +7 more
wiley   +1 more source

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