Results 151 to 160 of about 101,679 (296)

Tuning Amorphous‐Crystalline Catalytic Interfaces by Mechanochemistry: Cu‐Based Metallic Glasses Coupled with Ceria for CO Oxidation

open access: yesAdvanced Materials, EarlyView.
Ball‐milling Cu‐based metallic glasses with ceria creates a unique nanostructure where metallic glass particles are wrapped by CeO2 nanoparticles. The intimate integration triggers copper state reorganization during reaction and aging, boosting CO oxidation and COPrOx activity.
Maahin Mirzay‐Shahim   +17 more
wiley   +1 more source

The Next Generation: Aspects of Grammatical Variation in the Speech of some London Preadolescents

open access: yes, 2007
PhDThis thesis is a sociolinguistic investigation into aspects of non-phonological variation in a group of preadolescents recorded in outer east London.
Levey, Stephen
core  

A Functional 2D Carbon Allotrope Combining Nanoporous Graphene and Biphenylene Segments

open access: yesAdvanced Materials, EarlyView.
The synthesis of a novel nanoporous graphene (NPG) is reported with biphenylene segments via thermal fusion of 12‐armchair porous graphene nanoribbons grown on gold surfaces. Characterization using STM, AFM, and DFT reveals low‐defect semiconducting behaviour and tunable band gaps.
Paula Angulo‐Portugal   +14 more
wiley   +1 more source

Consonantal Variation of Spanish in Northern Morocco

open access: yes, 2005
In former Spanish Morocco, many educated speakers are able to draw upon various phonological systems such as French, Moroccan Arabic, and Modern Standard Arabic in order to pronounce Spanish sounds. However, although the speakers of this study are highly
Sayahi, Lotfi, Scipione, Ruth
core  

Mesoporous Silica Nanoparticles in Biomedicine: Advances and Prospects

open access: yesAdvanced Materials, EarlyView.
Mesoporous silica nanoparticles offer unique properties like high surface area, tunable pores, and functionalization. They excel in drug delivery, tissue engineering, and stimuli‐responsive therapies, enabling targeted and controlled treatments. With roles in cancer therapy and diagnostics, their clinical translation requires addressing challenges in ...
Miguel Manzano, María Vallet‐Regí
wiley   +1 more source

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

open access: yesAdvanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades   +7 more
wiley   +1 more source

Testing the predictions of the feature-assembly hypothesis: evidence from the L2 acquisition of Spanish aspect morphology

open access: yes, 2011
According to the Feature-Assembly Hypothesis (FAH) (Lardiere 2005, 2009, Choi and Lardiere 2006a) convergence in second language acquisition is determined by whether L2 speakers can effectively reassemble existing features into new (L2) configurations ...
Dominguez, Laura   +5 more
core  

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