Results 71 to 80 of about 1,953,550 (296)

The Variation of Optical Band Gap for ZnO:In Films Prepared by Sol-Gel Technique

open access: yesAdvances in Materials Science and Engineering, 2013
ZnO:In films with different concentrations (0–5 at.%) are successfully synthesized on quartz substrates using sol-gel technique. The structure, morphology, and optical properties of ZnO:In films are investigated by X-ray diffraction, atomic force ...
Guomei Tang, Hua Liu, Wei Zhang
doaj   +1 more source

Orbital modulation of X-ray emission lines in Cygnus X-3

open access: yes, 2009
We address the problem where the X-ray emission lines are formed and investigate orbital dynamics using Chandra HETG observations, photoionizing calculations and numerical wind-particle simulations.The observed Si XIV (6.185 A) and S XVI (4.733 A) line ...
Crowther   +28 more
core   +1 more source

Explaining the Gamma-Ray Burst E_peak Distribution [PDF]

open access: yes, 2002
The characteristic photon energy for Gamma Ray Bursts, E_peak, has a remarkably narrow distribution for bursts of similar peak flux, with values between 150 and 600 keV for most faint bursts.
Schaefer, Bradley E.
core   +3 more sources

Blue shift DNA mutagenesis test

open access: yes, 2021
We're running a quick and dirty test of methylene blue based DNA mutagensis method (based off their photosensitive quality) today, something to occupy our mind while waiting for the new system 76 rig to arrive (for our upcoming mutant Halobacterium NRC-1 genome sequencing project). The test is a simple one involving methylene blue diluent and […]
openaire   +1 more source

A General Blue-Shift Phenomenon

open access: yes, 2023
In chromatic homotopy theory, there is a well-known conjecture called blue-shift phenomenon (BSP). In this paper, we propose a general blue-shift phenomenon (GBSP) which unifies BSP and a new variant of BSP introduced by Balmer-Sanders under one framework.
openaire   +2 more sources

Dispersive wave blue-shift in supercontinuum generation

open access: yesOptics Express, 2006
We numerically study dispersive wave emission during femtosecond-pumped supercontinuum generation in photonic crystal fibres. We show that dispersive waves are primarily generated over a short region of high temporal compression. Despite the apparent complexity of the pump pulse in this region, we show that the dynamics of dispersive wave generation ...
Dane R, Austin   +3 more
openaire   +2 more sources

AAA+ protein unfoldases—the Moirai of the proteome

open access: yesFEBS Letters, EarlyView.
AAA+ unfoldases are essential molecular motors that power protein degradation and disaggregation. This review integrates recent cryo‐electron microscopy (cryo‐EM) structures and single‐molecule biophysical data to reconcile competing models of substrate translocation.
Stavros Azinas, Marta Carroni
wiley   +1 more source

Color Point Tuning for (Sr,Ca,Ba) Si2O2N2:Eu2+ for White Light LEDs [PDF]

open access: yes, 2009
Color point tuning is an important challenge for improving white light LEDs. In this paper, the possibilities of color tuning with the efficient LED phosphor Sr1−x−y−zCaxBaySi2O2N2:Euz2+ (0 ≤ x, y ≤ 1; 0.005 ≤ z ≤ 0.16) are investigated.
Bachmann, Volker   +4 more
core   +1 more source

Transcriptional network analysis of PTEN‐protein‐deficient prostate tumors reveals robust stromal reprogramming and signs of senescent paracrine communication

open access: yesMolecular Oncology, EarlyView.
Combining PTEN protein assessment and transcriptomic profiling of prostate tumors, we uncovered a network enriched in senescence and extracellular matrix (ECM) programs associated with PTEN loss and conserved in a mouse model. We show that PTEN‐deficient cells trigger paracrine remodeling of the surrounding stroma and this information could help ...
Ivana Rondon‐Lorefice   +16 more
wiley   +1 more source

Laser-Induced Above-Bandgap Transparency in GaAs

open access: yes, 2004
We report the observation of large ($\sim 40%$) laser-induced above-bandgap transparency in GaAs at room temperature. The induced transparency is present only during the pulse width of the driving midinfrard laser pulses and its spectral shape is ...
Ajit Srivastava   +9 more
core   +2 more sources

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