Results 71 to 80 of about 4,987,074 (289)

High‐Temperature Single‐Photon Emission From Covalently Functionalized van der Waals Heterostructures

open access: yesAdvanced Science, EarlyView.
Covalent diazonium functionalization of graphite‐WSe2 heterostructures produces high‐purity single‐photon emission from WSe2 at T = 90 K, far above the typical T = 10 K limit. The chemical modification reshapes graphite's electronic structure and couples to WSe2 midgap states, stabilizing quantum emitters at elevated temperatures and opening pathways ...
S. Carin Gavin   +13 more
wiley   +1 more source

Millikelvin Intracellular Nanothermometry with Nanodiamonds

open access: yesAdvanced Science, EarlyView.
Nanothermometry in living cells is crucial for understanding heat diffusion and advancing cellular biology and drug discovery. Previous studies have reported controversial intracellular temperature variations. Using nanodiamond nanothermometry in macrophages, it is found that, in such experimental setting, apparent temperature changes are actually due ...
Maabur Sow   +26 more
wiley   +1 more source

Teaching and learning natural sciences using augmented reality in preschool and primary education: A literature review

open access: yesAdvances in Mobile Learning Educational Research
Augmented reality has the potential to transform and enrich Natural Sciences education. This is particularly true in preschool and primary education. This study aims to provide a literature review regarding the use of augmented reality in preschool and ...
Georgios Lampropoulos
semanticscholar   +1 more source

Quantifying the Single‐Cell Morphological Landscape of Cellular Transdifferentiation through Force Field Reconstruction

open access: yesAdvanced Science, EarlyView.
This study reconstructs the driving force field of fibroblast‐to‐neuron transdifferentiation from sparse single‐cell images by decomposing it into flux and time‐dependent potential gradient, extending the landscape‐flux framework to non‐steady‐state systems.
Chudan Yu   +3 more
wiley   +1 more source

Sensitive Sub‐THz Photodetection in Twisted Graphene with Broad Spectral Response

open access: yesAdvanced Science, EarlyView.
A dual‐gated twisted monolayer–bilayer graphene (TMBG) phototransistor enables ultrabroadband detection spanning visible to sub‐THz regimes. Gate‐tunable moiré bands produce photothermoelectric responses at zero bias and bolometric responses under applied bias.
Jiaxin Wu   +12 more
wiley   +1 more source

From the Spherical Earth Model to the Globe: The Effectiveness of a Planetary Model-Building Intervention

open access: yesEducation Sciences
The shape of the Earth is a fundamental concept that students need to learn in astronomy education. This paper reports the findings of a study that confirms the effectiveness of an intervention involving the construction of a model of the Earth prior to ...
Jan Amos Jelinek
doaj   +1 more source

Surface Adhesion Engineering for Armored Metasurfaces and Beyond

open access: yesAdvanced Science, EarlyView.
Targeting primary causes of dysfunctionality in optical systems, an “armored” metasurface is developed based on Persson's model and Hertzian theory, enabling anti‐dust, anti‐scratch, anti‐impact, and anti‐water, heat resistance capabilities, alongside excellent optical antireflection performance.
Lianwei Chen   +10 more
wiley   +1 more source

RECENT DEVELOPMENTS IN ULTRA-HIGH ENERGY NEUTRINO ASTRONOMY

open access: yesActa Polytechnica, 2013
We outline the current situation in ultrahigh energy (UHE) cosmic ray physics, pointing out the remaining problems, in particular the puzzle concerning the origin of the primary radiation and the role of neutrino astronomy for locating the sources ...
Peter K. F. Grieder
doaj   +1 more source

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