Results 181 to 190 of about 1,946,673 (274)

Towards an ‘absolute’ timing of biostratigraphic and environmental phases from the Saalian late glacial to the Weichselian pleniglacial in central Europe—Insights from a lacustrine succession in Lichtenberg, northern Germany

open access: yesBoreas, EarlyView.
Palynological records are central to the biostratigraphic subdivision of the Late Pleistocene in central Europe. Yet many interglacial and interstadial phases—such as the Eemian, Brörup and Odderade—remain only poorly constrained in time due to limited numerical dating.
Michael Hein   +19 more
wiley   +1 more source

Influence of rubbing during etching on surface roughness and interfacial characteristics of intact enamel

open access: yesEuropean Journal of Oral Sciences, EarlyView.
Abstract Rubbing phosphoric acid during etching has been shown to improve surface roughness in prepared enamel. This study aimed to compare intact enamel's surface roughness and resin tag lengths after etching with and without rubbing. Extracted sound third molars were used for testing, mesially for conventional and distally for dynamic (rubbing ...
Moana Biedermann   +5 more
wiley   +1 more source

Extracellular fluid viscosity influences the mechanics and migration of MDA‐MB‐231 cells in a macromolecule‐dependent manner

open access: yesThe FEBS Journal, EarlyView.
Macromolecule‐dependent increases in extracellular fluid viscosity alter cell phenotype. These distinct macromolecules create different extracellular environments that modulate cell morphology and mechanoprotein expression, migration and invasion capacity, and cellular mechanical properties.
Ian M. Smith   +6 more
wiley   +1 more source

Comparative Study of the Influence of PPS, PAEK, and PEEK Thermoplastic Matrices on the Fatigue Mechanical Behavior of Carbon Fiber Reinforced Composites

open access: yesFatigue &Fracture of Engineering Materials &Structures, EarlyView.
ABSTRACT Structural thermoplastic composites have attracted increasing interest in engineering applications due to their excellent mechanical properties and recyclability. This work aims to contribute to this field by investigating the influence of poly(ether ether ketone) (PEEK), poly(aryl ether ketone) (PAEK), and poly(phenylene sulfide) (PPS ...
Dijan Vinicius Osti de Moraes   +3 more
wiley   +1 more source

Translation and discussion of Leon Brillouin's 1922 paper titled: Diffusion of light and X‐rays by a transparent homogeneous body: Influence of thermal agitation

open access: yesJournal of Microscopy, EarlyView.
Abstract In 1922, Léon Brillouin introduced the idea of light scattering from thermal fluctuations, in a paper titled: ‘Diffusion de la lumière et des rayons X par un corps transparent et homogéne, influence de l'agitation thermique’. Brillouin's mathematical treatment elegantly unifies principles from thermodynamics, optics and electromagnetic theory (
Pierre Bouvet, Kareem Elsayad
wiley   +1 more source

Home - About - Disclaimer - Privacy