Results 81 to 90 of about 187,643 (274)

High-performance large-area quasi-2D perovskite light-emitting diodes

open access: yesNature Communications, 2021
Performance of perovskite LED tends to decline as the active area increases, thus understanding the failure mechanism is paramount to surmount this limitation.
Changjiu Sun   +12 more
doaj   +1 more source

Investigating Rare Events by Transition Interface Sampling

open access: yes, 2003
We briefly review simulation schemes for the investigation of rare transitions and we resume the recently introduced Transition Interface Sampling, a method in which the computation of rate constants is recast into the computation of fluxes through ...
Anderson   +60 more
core   +3 more sources

Establishment and multifaceted characterization of a graded spinal cord injury model based on graduated impact depth

open access: yesAnimal Models and Experimental Medicine, EarlyView.
We established a graded spinal cord injury (SCI) model based on graduated impact depth, which was subsequently characterized across multiple dimensions, including locomotor function, imaging, histology, and transcriptomic profiles. We further identified transcriptomic changes in graded SCI at different time points postinjury and investigated the ...
Gang Zhou   +6 more
wiley   +1 more source

Enhanced Photoassisted Li‐O2 Battery with Ce‐UiO‐66 Metal‐Organic Framework Based Photocathodes

open access: yesAdvanced Materials Interfaces, 2023
Li‐O2 batteries have attracted extensive attention because of their theoretical specific energy equivalent to gasoline, but the poor electrical conductivity of Li2O2 leads to high overpotential, which limits their further development and application ...
Zhaozhao Hu   +8 more
doaj   +1 more source

Osteohistology of two phorusrhacids reveals uninterrupted growth strategy

open access: yesThe Anatomical Record, EarlyView.
Abstract Phorusrhacidae were apex predators that primarily dominated South America ecosystems for at least 40 million years with their imposing size and predatory lifestyle—yet some aspects of their biology remain poorly understood. Osteohistology is a tool for understanding growth dynamics and biomechanical adaptations.
Lotta Dreyer   +2 more
wiley   +1 more source

The Impact of Explicit and Implicit Recasts on the Grammatical Accuracy of Iranian EFL Learners’ Writing Performance [PDF]

open access: yesJournal of Applied Linguistics, 2013
The present study aimed at investigating the effects of explicit and implicit recasts on Iranian EFL learners' acquisition of English relative clauses.
Saeideh Ahangari, Farhad Golpour
doaj  

Tuning local chemistry of P2 layered-oxide cathode for high energy and long cycles of sodium-ion battery

open access: yesNature Communications, 2021
High-capacity and structural stable cathode materials are challenges for sodium-ion batteries. Here, the authors report a layered P2-Na0.612K0.056MnO2 with large-sized K+ riveted in the Na-layers to enable 0.9 Na+ (de)insertion with a reversible phase ...
Chenchen Wang   +11 more
doaj   +1 more source

Counting elliptic curves of bounded Faltings height

open access: yes, 2016
We give an asymptotic formula for the number of elliptic curves over $\mathbb{Q}$ with bounded Faltings height. Silverman has shown that the Faltings height for elliptic curves over number fields can be expressed in terms of modular functions and the ...
Hortsch, Ruthi
core   +1 more source

Framing National Education in Hong Kong: A frame analysis of power dynamics in stakeholders' competing narratives

open access: yesBritish Educational Research Journal, EarlyView.
Abstract This article examines how national education in Hong Kong functions as a contested arena in which state and non‐state actors struggle over the meaning of citizenship, identity and schooling. Using inductive frame analysis of 319 news articles (2020–2025) from five Chinese‐ and English‐language outlets, it identifies diagnostic, prognostic and ...
Jason Cong Lin
wiley   +1 more source

Macrophage‐targeted cerium‐tannic acid metal‐polyphenol framework nanoenzyme promotes in situ heart valves regeneration through adaptive immunomodulation

open access: yesBMEMat, EarlyView.
A novel nanoenzyme based on cerium ions‐tannic acid metal‐polyphenol framework (FCT) has been developed and loaded onto DHVs for targeting M1 macrophages to reduce their ROS level and reprogram macrophage phenotype, thereby eliminating inflammation, promoting endothelialization and adaptive matrix remodeling of scaffolds, offering a promising strategy ...
Peng Song   +9 more
wiley   +1 more source

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