Results 241 to 250 of about 101,189 (313)

Deep Learning Methods for Assessing Time‐Variant Nonlinear Signatures in Clutter Echoes

open access: yesAdvanced Intelligent Systems, EarlyView.
Motion classification from biosonar echoes in clutter presents a fundamental challenge: extracting structured information from stochastic interference. Deep learning successfully discriminates object speed and direction from bat‐inspired signals, achieving 97% accuracy with frequency‐modulated calls but only 48% with constant‐frequency tones. This work
Ibrahim Eshera   +2 more
wiley   +1 more source

Building Molecules by a Self‐Replicator That Catalyzes Acyl Hydrazone Formation

open access: yesAngewandte Chemie, EarlyView.
A self‐replicator efficiently catalyzes the formation of acyl hydrazone bonds between a set of different substrates. In addition to previously reported (bond‐breaking) catalytic activity, this renders the self‐replicator highly promiscuous, which is a good starting point for Darwinian experiments en route to de‐novo life.
Kayleigh S. van Esterik   +2 more
wiley   +1 more source

The Unbearable Indefiniteness of Spacetime. [PDF]

open access: yesFound Phys
Cinti E, Mariani C, Sanchioni M.
europepmc   +1 more source

Investigation Into the Dynamics of the Cupula in the Vestibular Organ of Adult Zebrafish Using Metabolic Glycoengineering

open access: yesAngewandte Chemie, EarlyView.
The cupula is a membrane within the vestibular organ that senses rotatory accelerations of the head. Metabolic glycoengineering in combination with bioorthogonal labeling demonstrates that in adult zebrafish – being a model for the human inner ear – this membrane is constantly renewed.
Hans Scherer   +4 more
wiley   +1 more source

Effective Quantum Theory of EXAFS in a Dissipative Liquid-Phase Medium. [PDF]

open access: yesJ Phys Chem B
Bai M   +4 more
europepmc   +1 more source

A Novel Acetylcholine Nanosensor for Single Vesicle Storage and Sub‐Quantal Exocytosis in Living Neurons and Organoids

open access: yesAngewandte Chemie, EarlyView.
Schematic representation of M@E@CF nanosensors for detecting vesicular storage and release in cholinergic neurons and brain organoids. (A) Nano‐tip microelectrodes modification via molds fabricated through 3D printing. (B) the reaction mechanism for acetylcholine detection at the electrode interface.
Wanying Zhu   +11 more
wiley   +1 more source

Experimental determination of structural motifs of interference-free water undecamer cluster (H<sub>2</sub>O)<sub>11</sub>. [PDF]

open access: yesNat Commun
Wang T   +15 more
europepmc   +1 more source

Experimental Isolation of Single Impact, Cumulative Energy, Aging, and Liquid‐Assisted Grinding Effects in Mechanochemical Reactions

open access: yesAngewandte Chemie, EarlyView.
An experimental framework is introduced to isolate single‐impact and cumulative energy within a mechanochemical system. The guided, stepwise approach highlights the fundamental roles of impact events, post‐impact reactivity, and liquid‐assisted grinding additives in all‐solid mechanochemical reactions.
Johanna Templ, Lars Borchardt
wiley   +1 more source

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