Results 31 to 40 of about 2,742,251 (343)

Direct observation of mode-specific phonon-band gap coupling in methylammonium lead halide perovskites

open access: yesNature Communications, 2017
Methylammonium lead iodide perovskite, a promising material for efficient photovoltaics, shows a unique temperature dependence of its optical properties. Kim et al.
Heejae Kim   +8 more
doaj   +1 more source

Optical inter-site spin transfer probed by energy and spin-resolved transient absorption spectroscopy

open access: yesNature Communications, 2020
Optically driven spin transfer is the fastest process to manipulate magnetism. Here, the authors show that this process emerges as the dominant mechanism in femtosecond spin dynamics enabling to the engineering of functional magnetic systems for future ...
Felix Willems   +8 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

Dibaryon spectroscopy [PDF]

open access: yesJournal of High Energy Physics, 2003
The AdS/CFT correspondence relates dibaryons in superconformal gauge theories to holomorphic curves in Kaehler-Einstein surfaces. The degree of the holomorphic curves is proportional to the gauge theory conformal dimension of the dibaryons. Moreover, the number of holomorphic curves should match, in an appropriately defined sense, the number of ...
Herzog, Christopher P., McKernan, James
openaire   +2 more sources

An intracellular transporter mitigates the CO2‐induced decline in iron content in Arabidopsis shoots

open access: yesFEBS Letters, EarlyView.
This study identifies a gene encoding a transmembrane protein, MIC, which contributes to the reduction of shoot Fe content observed in plants under elevated CO2. MIC is a putative Fe transporter localized to the Golgi and endosomal compartments. Its post‐translational regulation in roots may represent a potential target for improving plant nutrition ...
Timothy Mozzanino   +7 more
wiley   +1 more source

The Caenorhabditis elegans DPF‐3 and human DPP4 have tripeptidyl peptidase activity

open access: yesFEBS Letters, EarlyView.
The dipeptidyl peptidase IV (DPPIV) family comprises serine proteases classically defined by their ability to remove dipeptides from the N‐termini of substrates, a feature that gave the family its name. Here, we report the discovery of a previously unrecognized tripeptidyl peptidase activity in DPPIV family members from two different species.
Aditya Trivedi, Rajani Kanth Gudipati
wiley   +1 more source

A compact two-wave dichrometer of an optical biosensor analytical system for medicine

open access: yesEPJ Web of Conferences, 2017
An experimental model has been developed of a compact two-wave dichrometer on the base of LEDs that is well-suited to work with “liquid” DNA nanoconstructions as biosensing units.
Chulkov D.P.   +5 more
doaj   +1 more source

QCD spectroscopy [PDF]

open access: yesNuclear Physics B - Proceedings Supplements, 1994
Plenary talk at Lattice 93, 18 pages of ...
openaire   +2 more sources

Peptide‐based ligand antagonists block a Vibrio cholerae adhesin

open access: yesFEBS Letters, EarlyView.
The structure of a peptide‐binding domain of the Vibrio cholerae adhesin FrhA was solved by X‐ray crystallography, revealing how the inhibitory peptide AGYTD binds tightly at its Ca2+‐coordinated pocket. Structure‐guided design incorporating D‐amino acids enhanced binding affinity, providing a foundation for developing anti‐adhesion therapeutics ...
Mingyu Wang   +9 more
wiley   +1 more source

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

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