Results 231 to 240 of about 41,303 (288)

Resolving the Structural Duality of Graphene Grain Boundaries

open access: yesAdvanced Materials, EarlyView.
Cantilever ncAFM resolves the atomic structure of grain boundaries in graphene, revealing coexisting stable and metastable types. Both contain pentagon/heptagon defects, but metastable GBs show irregular geometries. Modeling shows metastable GBs form under compression, exhibiting vertical corrugation, while stable GBs are flat.
Haojie Guo   +11 more
wiley   +1 more source

Revealing How Acid Sites Enhance the Electrocatalytic Glycerol Oxidation Performance on Pt Loaded Zeolite‐Carbon Composite Materials

open access: yesAdvanced Materials, EarlyView.
In the work reported herein, the catalytic effects of acid sites on electrocatalytic glycerol oxidation reaction are investigated by using a novel catalytic material system that integrates Pt metal sites with acidic Al sites. Abstract The catalytic role and function of acid sites in solid acid catalysts, such as zeolites, are well understood in the ...
Ju Ye Kim   +11 more
wiley   +1 more source

[Transitory changes in ocular refraction].

open access: yesTidsskrift for den Norske laegeforening : tidsskrift for praktisk medicin, ny raekke, 2003
openaire   +1 more source

Prevalence of high myopia and its associated factors among secondary school students at Finote-selam town, Northwest Ethiopia, 2023. [PDF]

open access: yesSci Rep
Bayabil AZ   +12 more
europepmc   +1 more source

The dynamics of ocular length growth and refraction increases in children and adolescents with myopia

open access: yesKlinika Oczna
Izabela Radowska   +2 more
doaj   +1 more source

Chiral Acoustic Phonon and Conservation of Pseudoangular Momentum in α‐Quartz

open access: yesAdvanced Materials, EarlyView.
Chiral acoustic phonons in α‐quartz are probed via Brillouin light scattering, exploiting the photon's helicity and the crystal's handedness. The interaction obeys a selection rule arising from pseudoangular momentum conservation, enabling direct optical access to phonon chirality in nonsymmorphic crystals.
Changsoo Kim   +8 more
wiley   +1 more source

Thermally Drawn Multifunctional All‐Hydrogel Fibers for Anti‐Fibrotic and Multimodal Neural Interfaces

open access: yesAdvanced Materials, EarlyView.
Hydrogels demonstrate material properties that mimic the mechanical and chemical environments of biological tissues. Yet, they face challenges during their integration into 3D interfaces. By identifying a class of thermoplastic hydrogels, a strategy is developed to pattern hydrogels in thermally drawn fibers.
Changhoon Sung   +13 more
wiley   +1 more source

Atropine or Cyclopentolate to Diagnose Premyopia in Preschool Children.

open access: yesJAMA Ophthalmol
Wu H   +12 more
europepmc   +1 more source

Micropulse Laser Trabeculoplasty in Glaucoma: Efficacy and Safety in a Clinical Cohort. [PDF]

open access: yesMedicina (Kaunas)
Bodea FI   +5 more
europepmc   +1 more source

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