Results 161 to 170 of about 378,419 (338)

Simulating the Volcanic Sulfate Aerosols From the 1991 Eruption of Cerro Hudson and Their Impact on the 1991 Ozone Hole

open access: yesGeophysical Research Letters
The Chilean volcano Cerro Hudson erupted between August 8th and 15th, 1991, injecting between 1.7 and 2.9 Tg of SO2 into the upper troposphere and lower stratosphere.
Parker A. Case   +3 more
doaj   +1 more source

Dental Aerosols

open access: yesThe Journal of the American Dental Association, 2020
Soares, Betânia Maria   +2 more
openaire   +2 more sources

Punicalagin Enhances Autophagy Through Sirtuin 1/FoxO3a Axis to Inhibit Intracellular Mycobacterium Abscessus Infection

open access: yesAdvanced Science, EarlyView.
Punicalagin, a pomegranate molecule, helps the body fight Mycobacterium abscessus. It preferentially boosts interstitial macrophages in the lung, stabilizing mitochondria and switching on the autophagy via SIRT1/FoxO3a, which lowers bacterial load without directly killing bacteria.
Kefan Bi   +4 more
wiley   +1 more source

Synoptic Scale Controls and Aerosol Effects on Fog and Low Stratus Life Cycle Processes in the Po Valley, Italy

open access: yesGeophysical Research Letters
Fog and low stratus clouds (FLS) form as a result of complex interactions of multiple factors in the atmosphere and at the land surface and impact both the anthropogenic and natural environments.
Eva Pauli   +3 more
doaj   +1 more source

Cyclic Strain and Macrophage‐Mediated Transport Govern Micron‐Sized PM2.5 Translocation across the Air–Blood Barrier

open access: yesAdvanced Science, EarlyView.
Using a dynamic, tri‐culture air‐blood barrier model, this study reveals that macrophage‐mediated transport governs micron‐sized particle translocation under cyclic strain. The process is highly size‐dependent that 2 µm particles are transported by macrophages, 0.2 µm particles diffuse passively, and 5 µm particles are effectively blocked.
Yongjian Li   +3 more
wiley   +1 more source

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