Results 171 to 180 of about 50,224 (305)

Observing the Earth's Plasmasphere and Ionosphere From the Lunar Surface

open access: yesGeophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract We present the analysis of the first lunar‐based observational characterization of the Earth's plasmasphere and ionosphere using Global Navigation Satellite Systems signals tracked from the lunar surface by the Lunar GNSS Receiver Experiment (LuGRE). The Earth‐Moon geometry enables limb sounding of the plasmasphere at altitudes exceeding 3,000 
C. Cesaroni   +8 more
wiley   +1 more source

Revealing the Formation of the <20 MeV Inner Proton Radiation Belt at L ∼ 2 During the 10–11 May 2024 Superstorm

open access: yesGeophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract A new proton radiation belt was identified during the geomagnetic superstorm of 10–11 May 2024. To investigate its origin, we use an MHD‐test particle simulation to model solar energetic proton (SEP) trapping and the evolution of the initial trapped proton population during the storm.
Murong Qin   +10 more
wiley   +1 more source

Consenso sobre terapia anti-retroviral em adultos

open access: yesDST, 1997
Programa Nacional de DST/AIDS
doaj  

Sub‐MeV Electron Precipitation Driven by EMIC Waves: New Insights From CIRBE/REPTile‐2 Measurements

open access: yesGeophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract Electromagnetic ion cyclotron (EMIC) waves are recognized as a key driver of relativistic (>1 MeV) electron loss in Earth's magnetosphere. Growing evidence also suggests that EMIC wave can efficiently scatter sub‐MeV electrons, although the precise energy range and the underlying physical mechanisms remain debated.
Zheng Xiang   +7 more
wiley   +1 more source

miRNA Sensor HuR Compartmentalizes Ago2‐Uncoupled miRNAs to Lipid Droplets to Buffer miRNA Activity in Mammalian Cells

open access: yesThe FASEB Journal, Volume 40, Issue 11, 15 June 2026.
This study revealed a dose‐dependent miRNA buffering mechanism involving extracellular export and storage of miRNA on lipid droplets. The protein HuR facilitates miRNA buffering by dissociating miRNAs from Ago2 and promoting miRNA accumulation on lipid droplets or its extracellular export, depending on cellular requirements.
Sreemoyee Chakraborty   +3 more
wiley   +1 more source

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