Results 111 to 120 of about 1,145,330 (292)

On invisible plasma content in radio-loud AGNs: The case of TeV blazar Markarian 421

open access: yes, 2007
Invisible plasma content in blazar jets such as protons and/or thermal electron-positron ($e^{\pm}$) pairs is explored through combined arguments of dynamical and radiative processes.
Antonucci   +49 more
core   +1 more source

Dapagliflozin prevents methylglyoxal‐induced retinal cell death in ARPE‐19 cells

open access: yesFEBS Open Bio, EarlyView.
Diabetic macular oedema is a diabetes complication of the eye, which may lead to permanent blindness. ARPE‐19 are human retinal cells used to study retinal diseases and potential therapeutics. Methylglyoxal is a compound increased in uncontrolled diabetes due to elevated blood glucose.
Naina Trivedi   +7 more
wiley   +1 more source

Positive and negative ionospheric disturbances prior to the 2016 christmas earthquake in Chile

open access: yesGeomatics, Natural Hazards & Risk, 2019
Global ionospheric maps (GIMs) provided by the Center for Orbit Determination in Europe (CODE) served to analyze ionospheric disturbances prior to the December 25, 2016 earthquake in Chile.
C. Sotomayor-Beltran
doaj   +1 more source

Solving a navigation problem with the total electron content model GEMTEC

open access: yesSolar-Terrestrial Physics, 2019
This article explores the possibility of improving the accuracy of positioning in single-frequency satellite radio navigation equipment through the use of an empirical model of the total electronic content GEMTEC.
Kholmogorov A.A.   +2 more
doaj   +1 more source

Long‐term trends in the total electron content

open access: yesGeophysical Research Letters, 2017
AbstractThe total electron content (TEC) is important among others for Global Navigation Satellite Systems/GPS signal propagation and applications. However, there is only one comprehensive analysis of TEC trends, and the resulted trends are not consistent with trends in other ionospheric parameters. Here we use the TEC data of Lean et al.
Jan Lastovicka   +2 more
openaire   +1 more source

Dihydroorotate dehydrogenase (DHODH) regulates trophoblast syncytialization through organelle stress–induced cellular senescence

open access: yesFEBS Open Bio, EarlyView.
The inhibition of mitochondrial dihydroorotate dehydrogenase (DHODH) impairs syncytialization and induces cellular senescence via mitochondrial and endoplasmic reticulum stress in human trophoblast stem cells, elevating sFlt1/PlGF levels, a hallmark of placental dysfunction in hypertensive disorders of pregnancy.
Kanoko Yoshida   +6 more
wiley   +1 more source

Development of a local empirical model of ionospheric total electron content (TEC) and its application for studying solar-ionospheric effects. [PDF]

open access: yesSci Rep, 2021
Davoudifar P   +6 more
europepmc   +1 more source

Polarization-induced Rashba spin-orbit coupling in structurally symmetric III-Nitride quantum wells

open access: yes, 2006
The effective linear coupling coefficient and the total spin-splitting are calculated in Ga- and N- face InGaN quantum wells. Alloy content, geometry, and gate voltage affect an internal field and an electron density distribution in the growth direction ...
Litvinov, V. I.
core   +1 more source

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