Results 71 to 80 of about 5,648,023 (377)

Wavelength-selective, sequential Q-switching laser cavity [PDF]

open access: yes, 1974
Single-frequency continuous output of laser is converted into series of high-power laser pulses at high repetition rates. Applications include pollutant detection by absorption, laser gain measurements at discrete wavelengths, laser propagation ...
Allario, F., Lucht, R. A.
core   +1 more source

Caustic structures in the spectrum of x-ray Compton scattering off electrons driven by a short intense laser pulse [PDF]

open access: yes, 2015
We study the Compton scattering of x-rays off electrons that are driven by a relativistically intense short optical laser pulse. The frequency spectrum of the laser-assisted Compton radiation shows a broad plateau in the vicinity of the laser-free ...
A Surzhykov   +21 more
core   +3 more sources

Soman induces endoplasmic reticulum stress and apoptosis of cerebral organoids via the GRP78‐ATF6‐CHOP signaling pathway

open access: yesFEBS Open Bio, EarlyView.
Cerebral organoids were employed as a novel model to explore the neurotoxicity of soman. Soman inhibited acetylcholinesterase activity, increased cell apoptosis and upregulated endoplasmic reticulum (ER) stress markers glucose‐regulated protein 78 (GRP78), activating transcription factor 6 (ATF6) and C/EBP homologous protein (CHOP).
Yue Wei   +7 more
wiley   +1 more source

A simple laser system for atom interferometry

open access: yes, 2014
We present here a simple laser system for a laser cooled atom interferometer, where all functions (laser cooling, interferometry and detection) are realized using only two extended cavity laser diodes, amplified by a common tapered amplifier.
Lours, Michel   +3 more
core   +3 more sources

Two-Color Terawatt Laser System For High-Intensity Laser-Plasma Experiments [PDF]

open access: yes, 2012
We report a two-color terawatt laser system for use in controlling laser-plasma instabilities. The system includes a commercial 45 TW Ti:Sapphire laser system at 800 nm, temporally synchronized with a 1 TW CPA Raman-Ti:Sapphire hybrid laser centered at ...
Downer, M. C.   +2 more
core   +1 more source

On subcellular distribution of the zinc finger 469 protein (ZNF469) and observed discrepancy in the localization of endogenous and overexpressed ZNF469

open access: yesFEBS Open Bio, EarlyView.
ZNF469 regulates the expression of genes encoding extracellular matrix proteins. Endogenous ZNF469 is predominantly cytoplasmic, while in transfected cells, it forms aggregates reminiscent of biomolecular condensates, located mainly in the nucleus. These condensates exhibit overlapping staining with proteasomes and are also associated with the mitotic ...
Anne Elisabeth Christensen Mellgren   +8 more
wiley   +1 more source

The Market Reaction to Changes in the Brazilian Stock Exchange Indexes

open access: yesRevista Brasileira de Finanças, 2006
This study investigates the price and volume behavior of stock added and excluded to the IBOVESPA, IBrX50, and IBrX100 indexes during the years 1994 to 2002 and FGV100 index during the years 2000 to 2002.
Rodrigo S. Verdi, Jairo Laser Procianoy
doaj  

Real-time optoacoustic temperature determination on cell cultures during heat exposure: a feasibility study

open access: yesInternational Journal of Hyperthermia, 2019
Objective/Purpose: In order to study the effects of hyperthermia and other temperature-related effects on cells and tissues, determining the precise time/temperature course is crucial.
Yoko Miura   +6 more
doaj   +1 more source

Engineering nanoparticle features to tune Rayleigh scattering in nanoparticles-doped optical fibers

open access: yesScientific Reports, 2021
Rayleigh scattering enhanced nanoparticles-doped optical fibers are highly promising for distributed sensing applications, however, the high optical losses induced by that scattering enhancement restrict considerably their sensing distance to few meters.
Victor Fuertes   +7 more
doaj   +1 more source

Optimized laser pulse profile for efficient radiation pressure acceleration of ions

open access: yes, 2012
The radiation pressure acceleration regime of laser ion acceleration requires high intensity laser pulses to function efficiently. Moreover the foil should be opaque for incident radiation during the interaction to ensure maximum momentum transfer from ...
Borghesi M.   +4 more
core   +1 more source

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