Results 21 to 30 of about 245,756 (303)

A framework for quantification and physical modeling of cell mixing applied to oscillator synchronization in vertebrate somitogenesis [PDF]

open access: yes, 2017
In development and disease, cells move as they exchange signals. One example is found in vertebrate development, during which the timing of segment formation is set by a ‘segmentation clock’, in which oscillating gene expression is synchronized across a ...
Bhavna, Rajasekaran   +3 more
core   +4 more sources

Scalar properties of negative polarity superlatives

open access: yesBorealis: An International Journal of Hispanic Linguistics, 2020
Most theories agree that polarity sensitivity must be related to scalarity one way or another. Superlatives are a good example of this, since their “endpoint nature” allows for them to be in negative contexts with a quantitative interpretation.
Ulises Delgado
doaj   +1 more source

Polarization-Assisted Phase-Sensitive Processor [PDF]

open access: yesJournal of Lightwave Technology, 2015
We propose and experimentally demonstrate a phase-sensitive optical processor, capable of generating two codirectional and π-phase-shifted phase-sensitive amplifiers (PSAs) in a single device. Phase-sensitive operation is obtained by polarization mixing a phase-locked signal/idler pair generated in a degenerate dual-pump vector parametric amplifier ...
Parmigiani, Francesca   +5 more
openaire   +3 more sources

Synthesis and Photophysical Study of 2′-Deoxyuridines Labeled with Fluorene Derivatives

open access: yesMolecules, 2012
We examined microenvironment-sensitive fluorescent 2′-deoxyuridines labeled with fluorene derivatives that exhibited solvent-dependent photophysical properties.
Gil Tae Hwang   +2 more
doaj   +1 more source

Morphological feature extraction for statistical learning with applications to solar image data [PDF]

open access: yes, 2013
: Many areas of science are generating large volumes of digital image data. In order to take full advantage of the high-resolution and high-cadence images modern technology is producing, methods to automatically process and analyze large batches of such ...
Adams   +14 more
core   +2 more sources

Transient twinkle perception is induced by sequential presentation of stimuli that flicker at frequencies above the critical fusion frequency [PDF]

open access: yes, 2015
The critical fusion frequency (CFF) is a threshold that represents the temporal limits of the human visual system. If two flickering stimuli with equal subjective luminances are presented simultaneously at different locations, the CFF is the temporal ...
Yutaka Nakajima, Yutaka Sakaguchi
core   +2 more sources

Polarization-sensitive photophoresis

open access: yesApplied Physics Letters, 2012
We photophoretically trap spherical airborne particles using a single radially or azimuthally polarized laser beam and show that the trapping efficiency is significantly higher for the radial polarization. The demonstrated polarization sensitivity of the photophoretic force, which is caused by polarization-dependent reflection from the particles, adds ...
Shvedov, Vladlen G.   +4 more
openaire   +2 more sources

An Appraisal of Muon Neutrino Disappearance at Short Baseline [PDF]

open access: yes, 2013
Neutrino physics is nowadays receiving more and more attention as a possible source of information for the long standing problem of new Physics beyond the Standard Model.
Bertolin, Alessandro   +4 more
core   +3 more sources

Electron electric dipole moment experiment using electric-field quantized slow cesium atoms [PDF]

open access: yes, 2006
A proof-of-principle electron electric dipole moment (e-EDM) experiment using slow cesium atoms, nulled magnetic fields, and electric field quantization has been performed.
A. D. Sakharov   +8 more
core   +3 more sources

Polarization sensitive Multi-Chroic MKIDs [PDF]

open access: yesSPIE Proceedings, 2016
To appear in the Proc ...
Johnson B. R.   +20 more
openaire   +2 more sources

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