Results 81 to 90 of about 843,058 (298)

Probing Cellular Activity Via Charge‐Sensitive Quantum Nanoprobes

open access: yesAdvanced Materials, EarlyView.
A new quantum sensing modality detects shifts in zero‐field splitting caused by charge rearrangement with diamond nanocrystals in response to cellular activity. These electric‐field‐driven effects provide an alternative to temperature‐based interpretations, enabling real‐time, single‐cell readout of inflammation.
Uri Zvi   +16 more
wiley   +1 more source

Ultradeep ATCA Imaging of 47 Tucanae Reveals a Central Compact Radio Source

open access: yesThe Astrophysical Journal
We present the results of an ultradeep radio continuum survey, containing ∼480 hr of observations, of the Galactic globular cluster 47 Tucanae with the Australia Telescope Compact Array.
Alessandro Paduano   +11 more
doaj   +1 more source

Radio Observations of Six Young Type Ia Supernovae

open access: yesThe Astrophysical Journal, 2023
Type Ia supernovae (SNe Ia) are important cosmological tools, probes of binary star evolution, and contributors to cosmic metal enrichment; yet, a definitive understanding of the binary star systems that produce them remains elusive.
C. E. Harris   +5 more
doaj   +1 more source

Artificial Intelligence‐Assisted Workflow for Transmission Electron Microscopy: From Data Analysis Automation to Materials Knowledge Unveiling

open access: yesAdvanced Materials, EarlyView.
AI‐Assisted Workflow for (Scanning) Transmission Electron Microscopy: From Data Analysis Automation to Materials Knowledge Unveiling. Abstract (Scanning) transmission electron microscopy ((S)TEM) has significantly advanced materials science but faces challenges in correlating precise atomic structure information with the functional properties of ...
Marc Botifoll   +19 more
wiley   +1 more source

A GeoWall with Physics and Astronomy Applications [PDF]

open access: yes, 2008
A GeoWall is a passive stereoscopic projection system that can be used by students, teachers, and researchers for visualization of the structure and dynamics of three-dimensional systems and data. The type of system described here adequately provides 3-D
Bruton, Dan, Dukes, Phillip
core   +1 more source

A recurrent neural network for classification of unevenly sampled variable stars

open access: yes, 2017
Astronomical surveys of celestial sources produce streams of noisy time series measuring flux versus time ("light curves"). Unlike in many other physical domains, however, large (and source-specific) temporal gaps in data arise naturally due to ...
Bloom, Joshua S.   +3 more
core   +1 more source

Engineering Unequal Antipolar Displacement in Ferromagnetic Layered Oxide Heterostructures

open access: yesAdvanced Materials, EarlyView.
Atomically precise superlattices of the double perovskites La2NiMnO6 and Sm2NiMnO6 are grown to engineer an unequal antipolar displacement of the La and Sm ions. These structural motifs are confirmed by the scanning transmission electron microscopy and first‐principles calculations.
Jonathan Spring   +8 more
wiley   +1 more source

AMPEL: A framework for reproducible time-domain astronomy

open access: yes, 2022
Reproducibility, a core principle of science, is close to impossible to achieve in its strict sense in time-domain astronomy - we cannot redo an observation of a transient event once it is gone. Related features such as provenance and analysis reproducibility is further challenged by fractured software development, heterogeneous data sources and an ...
openaire   +1 more source

A key to the treasure chest of time-domain astronomy

open access: yes, 2022
Abstract Time-domain astronomy has emerged as one of the most promising fields in astronomy. Time-frequency analysis methods like Fourier and wavelet transforms are widely used in astronomy but have profound limitations in analysing nonlinear or non-stationary data, which are dominant in natural systems.
Shuping Yan   +5 more
openaire   +1 more source

Asymmetry of the Ferroelectric Phase Transition in BaTiO3

open access: yesAdvanced Materials, EarlyView.
Phase transitions are typically assumed to behave identically in forward and reverse. This work shows that in the ferroelectric material barium titanate this is not true: heating drives an abrupt, first‐order jump, while cooling gives a smooth, continuous change.
Asaf Hershkovitz   +14 more
wiley   +1 more source

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