Results 221 to 230 of about 8,800 (287)

Revisiting International Student Mobility Under New Geopolitics: Stratification, Conditionality, and Uncertainty

open access: yesFuture in Educational Research, EarlyView.
ABSTRACT In the 21st century, the governance of international student mobility has undergone a fundamental transformation, driven primarily by securitization, geoeconomic competition, and domestic political pressures that conventional market‐based frameworks such as the push‐pull model and human capital theory cannot adequately explain.
Shibao Guo, Zhongrui Wang
wiley   +1 more source

Spirobifluorene fusion in multiple resonance frameworks enables efficient pure‐red OLEDs with narrowband emission and suppressed efficiency roll‐off

open access: yesFlexMat, EarlyView.
An orthogonal spirobifluorene‐fusion strategy is introduced for B/N/O‐alternated MR frameworks, enabling improved kRISC (5.46 × 103 s−1), high ΦPL (97%), and narrow‐band pure‐red emission. Vacuum‐evaporated OLEDs incorporating this emitter achieve an EQEmax >40% (FWHM = 36 nm) and exhibit exceptionally low efficiency roll‐off at high luminance ...
Yan‐Yun Jing   +7 more
wiley   +1 more source

Triboelectric nanogenerators for vehicle intelligent cockpits

open access: yesFlexMat, EarlyView.
Converting mechanical stimuli from drivers and vehicle motion into electrical signals, triboelectric nanogenerators provide promising interfaces toward passive, flexible, distributed and intelligent sensing for next‐generation automotive cockpits to support three core functional dimensions: driver state monitoring, vehicle state monitoring, and human ...
Haiqiu Tan   +9 more
wiley   +1 more source

Simultaneous 3/4‐power scaling of leaf mass and 2/3‐power scaling of leaf area with stem mass in plants

open access: yesGrassland Research, EarlyView.
Abstract Background Plant allometry theory developed in the last century focused on 2/3‐power scaling, determined by light interception considerations. More recently, 3/4‐power scaling based on the properties of vascular distribution networks has been proposed.
Cory Matthew   +2 more
wiley   +1 more source

The Dead Donor Rule and Normothermic Regional Perfusion

open access: yesHastings Center Report, EarlyView.
Abstract Normothermic regional perfusion (NRP) can be used after the circulatory determination of death to prevent or minimize organ damage before the donor's organs are retrieved. It involves restarting circulation within the donor's body to reperfuse abdominal and thoracic organs while occluding the arteries that supply oxygenated blood to the brain ...
Andrew McGee   +3 more
wiley   +1 more source

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