Results 51 to 60 of about 3,143,049 (329)

Superresolution concentration measurement realized by sub-shot-noise absorption spectroscopy

open access: yesNature Communications, 2022
Here, the authors use entangled photon pairs as the light source for absorption spectroscopy and demonstrate sub-shot-noise spectra in the entire visible wavelength region.
Korenobu Matsuzaki, Tahei Tahara
doaj   +1 more source

Open-charm meson spectroscopy [PDF]

open access: yes, 2006
We present a theoretical framework that accounts for the new $D_J$ and $D_{sJ}$ mesons measured in the open-charm sector. These resonances are properly described if considered as a mixture of conventional $P-$wave quark-antiquark states and four-quark ...
A. Valcarce   +5 more
core   +3 more sources

All-optical field-free three-dimensional orientation of asymmetric-top molecules

open access: yesNature Communications, 2018
Alignment and orientation of the molecules allows studying the photon-molecule interactions in greater detail. Here the authors demonstrate the three-dimensional orientation of SO2 molecules in using COLTRIMS and orthogonally polarized laser pulses but ...
Kang Lin   +15 more
doaj   +1 more source

ADVANCED OPTICAL TECHNIQUES TO EXPLORE BRAIN STRUCTURE AND FUNCTION [PDF]

open access: yesJournal of Innovative Optical Health Sciences, 2013
Understanding brain structure and function, and the complex relationships between them, is one of the grand challenges of contemporary sciences. Thanks to their flexibility, optical techniques could be the key to explore this complex network.
L. SILVESTRI   +4 more
doaj   +1 more source

Aerosol particle molecular spectroscopy [PDF]

open access: yes, 1985
The molecular spectroscopy of a solution particle by structure resonance modulation spectroscopy is discussed [S. Arnold and A. B. Pluchino, "Infrared Spectrum of a Single Aerosol Particle by Photothermal Modulation of Structure Resonances," Appl.
Arnold, S., Murphy, E. K., Sageev, G.
core   +1 more source

The epithelial barrier theory proposes a comprehensive explanation for the origins of allergic and other chronic noncommunicable diseases

open access: yesFEBS Letters, EarlyView.
Exposure to common noxious agents (1), including allergens, pollutants, and micro‐nanoplastics, can cause epithelial barrier damage (2) in our body's protective linings. This may trigger an immune response to our microbiome (3). The epithelial barrier theory explains how this process can lead to chronic noncommunicable diseases (4) affecting organs ...
Can Zeyneloglu   +17 more
wiley   +1 more source

Encoding terahertz holographic bits with a computer-generated 3D-printed phase plate

open access: yesScientific Reports
A sub-terahertz holographic image of a two-dimensional 576-bit data code is produced using a diffractive phase-plate element. The phase plate was designed using a modified Gerchberg-Saxton iterative algorithm to encode a focused image of the data code ...
E. Constable, J. Gospodaric, A. Pimenov
doaj   +1 more source

Nanoconstructions on the base of double-stranded DNA molecules and their optical properties

open access: yesEPJ Web of Conferences, 2017
Experimental results have been presented on studying optical properties of nanoconstructions formed of orientationally ordered neighbouring double-stranded DNA molecules in the structure of their liquid-crystalline phases and dispersion particles of ...
Skuridin S.G.   +5 more
doaj   +1 more source

Ballistic electron spectroscopy

open access: yes, 2006
We demonstrate the feasibility of ballistic electron spectroscopy as a new tool for mesoscopic physics. A quantum dot is utilised as an energy-selective detector of non-equilibrium ballistic electrons injected into a two-dimensional electron system.
Griffiths, J. P.   +4 more
core   +1 more source

Aβ42 promotes the aggregation of α‐synuclein splice isoforms via heterogeneous nucleation

open access: yesFEBS Letters, EarlyView.
The aggregation of amyloid‐β (Aβ) and α‐synuclein (αSyn) is associated with Alzheimer's and Parkinson's diseases. This study reveals that Aβ aggregates serve as potent nucleation sites for the aggregation of αSyn and its splice isoforms, shedding light on the intricate interplay between these two pathogenic proteins.
Alexander Röntgen   +2 more
wiley   +1 more source

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