Results 71 to 80 of about 1,208,254 (376)
Sensors, 2021 We report the design of a high-efficiency spectral-domain spectrometer with cylindrical optics for line scanning optical coherence tomography (OCT). The spectral nonlinearity in k space (wavenumber) lowers the depth-dependent signal sensitivity of the ...
Sevin Samadi +2 more
doaj +1 more source
Adaptive Optics for Extremely Large Telescopes
, 2019 Adaptive Optics has become a key technology for the largest ground-based telescopes currently under or close to begin of construction. Adaptive optics is an indispensable component and has basically only one task, that is to operate the telescope at its ...
Hippler, Stefan
core +1 more source
Disruption of SETD3‐mediated histidine‐73 methylation by the BWCFF‐associated β‐actin G74S mutation
FEBS Letters, EarlyView.The β‐actin G74S mutation causes altered interaction of actin with SETD3, reducing histidine‐73 methylation efficiency and forming two distinct actin variants. The variable ratio of these variants across cell types and developmental stages contributes to tissue‐specific phenotypical changes. This imbalance may impair actin dynamics and mechanosensitive
Anja Marquardt +8 more
wiley +1 more source
Extending Imaging Volume in Soft X‐Ray Tomography
Advanced Photonics Research, 2023 Soft X‐ray tomography offers rapid imaging of whole, single cells with a few tens of nanometers spatial resolution without fixation or labeling. Herein, this technique is limited to specimens about 10 μm thick, such that applications of soft X‐ray ...
Axel Ekman +6 more
doaj +1 more source
Monocular Real Time Full Resolution Depth Estimation Arrangement with a Tunable Lens
Applied Sciences, 2022 This work introduces a real-time full-resolution depth estimation device, which allows integral displays to be fed with a real-time light-field. The core principle of the technique is a high-speed focal stack acquisition method combined with an efficient
Ricardo Oliva-García +3 more
doaj +1 more source
A new perturbative expansion of the time evolution operator associated with a quantum system
, 2005 A novel expansion of the evolution operator associated with a -- in general, time-dependent -- perturbed quantum Hamiltonian is presented. It is shown that it has a wide range of possible realizations that can be fitted according to computational ...
Agarwal G S +28 more
core +1 more source
Quantum Superposition States of Bose-Einstein Condensates [PDF]
, 1997 We propose a scheme to create a macroscopic ``Sch\"odinger cat'' state formed by two interacting Bose condensates. In analogy with quantum optics, where the control and engineering of quantum states can be maintained to a large extend, we consider the ...
A. O. Caldeira +48 more
core +2 more sources
Cyclic nucleotide signaling as a drug target in retinitis pigmentosa
FEBS Letters, EarlyView.Disruptions in cGMP and cAMP signaling can contribute to retinal dysfunction and photoreceptor loss in retinitis pigmentosa. This perspective examines the mechanisms and evaluates emerging evidence on targeting these pathways as a potential therapeutic strategy to slow or prevent retinal degeneration.
Katri Vainionpää +2 more
wiley +1 more source
A evolução da teoria ondulatória da luz e os livros didáticos
Revista Brasileira de Ensino de FísicaO tratamento habitualmente dado em livros-texto de física à evolução da teoria ondulatória da luz, a partir do modelo de Christiaan Huygens, pode ser considerado uma reconstrução a posteriori (whiggismo), que impõe uma interpretação atual a conceitos ...
Fabio W.O. da Silva
doaj +1 more source
Multiplexing of encrypted data using fractal masks
, 2012 This paper was published in OPTICS LETTERS and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://dx.doi.org/10.1364/OL.37.002895.
Barrera +20 more
core +1 more source