Results 21 to 30 of about 167,153 (243)

Ionospheric Behaviors Over Korea Peninsula During the Super Geomagnetic Storm Using GPS Measurements [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2009
The super-geomagnetic storms called 2003 Halloween event globally occurred during the period of 29 through 31 which are the following days when the solar flares of X18 class exploded on 28 October 2003.
Jong-Kyun Chung   +4 more
doaj   +1 more source

The tropospheric scintillation prediction of earth-to-satellite link for Bangladeshi climatic condition [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2015
The performance of earth-to-satellite link largely depends on various environmental factors like rain, fog, cloud, and atmospheric effects like ionospheric and tropospheric scintillation.
Hossain Muhammad Sakir   +1 more
doaj   +1 more source

Estimation and correction of scintillation effects on spaceborne P-band SAR images [PDF]

open access: yes, 2012
A correction method for distortions induced by ionospheric scintillation effects on P-band quad-pol synthetic aperture radar (SAR) data acquired in polar and high latitude regions is presented.
Konstantinos P. Papathanassiou   +8 more
core   +1 more source

Orthovanadate nanoparticles delay the accelerated aging in rats via the prevention of oxidative disturbances

open access: yesДоповiдi Нацiональної академiї наук України
The abilities of gadolinium orthovanadate nanoparticles (GdVO4 : Eu3+ NPs, 8x25 nm) to ameliorate age-related lesions have been studied. To achieve the goal, a model of accelerated aging due to postnatal overfeeding (POF) was used.
Yu.V. Nikitchenko   +7 more
doaj   +1 more source

Indirect X-ray detectors with single-photon sensitivity

open access: yesJournal of Synchrotron Radiation, 2022
The new generation of synchrotron light sources are pushing X-ray detectors to their limits. Very demanding conditions with unprecedented flux and higher operating energies now require high-performance X-ray detectors combining sensitivity, efficiency ...
Kristof Pauwels, Paul-Antoine Douissard
doaj   +1 more source

Robust radiocarbon dating of wood samples by high-sensitivity liquid scintillation spectroscopy in the 50–70 kyr age range [PDF]

open access: yes, 2007
Although high-sensitivity liquid scintillation (LS) spectroscopy is theoretically capable of producing finite radiocarbon ages in the 50,000- to 70,000-yr range, there is little evidence in the literature that meaningful dates in this time period have ...
Palmer, Jonathan G.   +7 more
core   +1 more source

Type I interferons modulate autophagy to shape gemcitabine response in pancreatic cancer cells

open access: yesFEBS Open Bio, EarlyView.
Type I interferons differentially modulate autophagy and the response of pancreatic cancer cells to gemcitabine. IFNα2b stimulates autophagic flux and protects cells from gemcitabine‐induced cell death, contributing to chemoresistance. In contrast, IFNβ1a inhibits autophagosome formation and enhances gemcitabine‐induced cell death, resulting in ...
Lucy E. Bonilla   +10 more
wiley   +1 more source

On the Relationship between Low Latitude Scintillation Onset and Sunset Terminator over Africa

open access: yesRemote Sensing, 2021
The solar terminator is a moving boundary between day-side and night-side regions on the Earth, which is a substantial source of perturbations in the ionosphere. In the vicinity of the solar terminator, essential parameters like S4 index measurements are
Mogese Wassaie Mersha   +5 more
doaj   +1 more source

Unraveling 4‐Phenylbutyrate's Therapeutic Role in SLC6A1 Disorders: Pharmacochaperoning Over HDAC Inhibition

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Variants in SLC6A1, encoding the GABA transporter 1 (GAT‐1), cause epilepsy, autism spectrum disorder, and developmental delay via loss of GABA uptake, impaired trafficking, and ER retention. We previously found that 4‐Phenylbutyrate (PBA), an FDA‐approved drug, restores GABA uptake and reduces seizures in SLC6A1‐related disorders ...
Melissa B. DeLeeuw   +5 more
wiley   +1 more source

The Effect of Midnight Temperature Maximum Winds on Post‐Midnight Equatorial Spread F

open access: yesSpace Weather, 2021
The SAMI3/equatorial spread F (Sami3 is also a model of the ionosphere/ESF) code is used to simulate the growth of equatorial plasma bubbles in the presence of a background wind field based on measured winds.
J. Krall   +3 more
doaj   +1 more source

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