Results 41 to 50 of about 49,266 (284)

Role of in situ-excited planetary waves in polar vortex splitting during the 2002 Southern Hemisphere sudden stratospheric warming event [PDF]

open access: yesAtmospheric Chemistry and Physics
On 25 September 2002, the Southern Hemisphere experienced its first and only major sudden stratospheric warming (SSW02) since routine upper-atmospheric observations commenced in 1957. This event was marked by a sudden splitting of the polar vortex. While
J.-H. Yoo, H.-Y. Chun
doaj   +1 more source

Equivalent permittivity and design of nanoparticle lasers for nonlocal polar dielectrics

open access: yesAIP Advances, 2023
Polar dielectrics are being actively investigated as a promising platform for mid-infrared nanophotonics, and it indicates dramatic nonlocal phenomena at the nanoscale.
Naifu Yu, Lei Gao, Yang Huang
doaj   +1 more source

The aim of the symposium

open access: yes, 1999
The polar regions play a crucial role in global climate change. They are sensitive indicators of change and their snow and ice features are good integrators of change.
Weller, Gunter
core   +1 more source

Fiber amplification of radially and azimuthally polarized laser light [PDF]

open access: yesOptics Letters, 2010
3 pages, 4 figures, submitted to optics ...
Fridman, Moti   +4 more
openaire   +3 more sources

The effect of sea-ice loss on beluga whales (Delphinapterus leucas) in West Greenland

open access: yes, 2010
An aerial survey was conducted to estimate the abundance of belugas (Delphinapterus leucas) on their wintering ground in West Greenland in March–April 2006 and 2008.
Marques, Tiago A.   +9 more
core   +1 more source

Opinion amplification causes extreme polarization in social networks

open access: yesScientific Reports, 2022
Abstract Extreme polarization of opinions fuels many of the problems facing our societies today, from issues on human rights to the environment. Social media provides the vehicle for these opinions and enables the spread of ideas faster than ever before.
Lim, SL, Bentley, PJ
openaire   +4 more sources

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

open access: yesFEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li   +2 more
wiley   +1 more source

Contributions to regional precipitation change and its polar-amplified pattern under warming

open access: yesEnvironmental Research: Climate, 2023
The polar regions are predicted to experience the largest relative change in precipitation in response to increased greenhouse-gas concentrations, where a substantial absolute increase in precipitation coincides with small precipitation rates in the ...
David B Bonan   +3 more
doaj   +1 more source

Transient Evolution of Polar Amplification Under Different CO2 Ramping Rates

open access: yesGeophysical Research Letters
Polar amplification is a robust feature of greenhouse‐gas‐forced climate change. Previous studies have typically examined it over a fixed time period or following an abrupt increase in atmospheric CO2.
Camille Hankel, David B. Bonan
doaj   +1 more source

Tau acetylation at K331 has limited impact on tau pathology in vivo

open access: yesFEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto   +3 more
wiley   +1 more source

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