Results 101 to 110 of about 316,907 (302)

Change in iceberg calving behavior preceded North Sea ice shelf disintegration during the last deglaciation

open access: yesNature Communications
Understanding how regime shifts in iceberg calving behavior affect ice shelf stability remains a challenge for numerical models. This is an important question as we consider the fate of the ice shelves that currently buttress the Antarctic Ice Sheet and ...
James D. Kirkham   +15 more
doaj   +1 more source

On the Thermodynamic and Kinetic Aspects of Immersion Ice Nucleation [PDF]

open access: yes
Heterogeneous ice nucleation initiated by particles immersed within droplets is likely the main pathway of ice formation in the atmosphere. Theoretical models commonly used to describe this process assume that it mimics ice formation from the vapor ...
Barahona, Donifan
core   +1 more source

Freezing colloidal suspensions: Periodic ice lenses and compaction [PDF]

open access: yes, 2014
Recent directional solidification experiments with aqueous suspensions of alumina particles (Anderson & Worster, Langmuir, vol. 28 (48), 2012, pp.
Anderson, AM, Worster, MG
core   +1 more source

YIPFα1A expression is regulated by multilayered molecular mechanisms

open access: yesFEBS Open Bio, EarlyView.
YIPFα1A, a five‐pass Golgi protein, is regulated at multiple layers. (1) Rare‐codon enrichment drives translation‐coupled mRNA decay. (2) A proximal 3′‐UTR element stabilizes mRNA. (3) A distal 3′‐UTR element included by alternate poly(A) site usage represses translation, which can be overridden by the proximal 3′‐UTR element.
Tokio Takaji   +2 more
wiley   +1 more source

Subsurface warming in the Antarctica’s Weddell Sea can be avoided by reaching the 2∘C warming target

open access: yesCommunications Earth & Environment
Recently, seasonal pulses of modified Warm Deep Water have been observed near the Filchner Ice Shelf front in the Weddell Sea, Antarctica. Here, we investigate the temperature evolution of subsurface waters in the Filchner Trough under four future ...
Vanessa Teske   +2 more
doaj   +1 more source

Glacier regime of the Drakhtik River (Lake Sevan basin) in the conditions of climate change

open access: yesВісник Харківського національного університету імені В.Н. Каразіна. Серія Геологія. Географія. Екологія
Formulation of the problem. River ice plays a significant role in biological, chemical, and physical processes occurring in freshwater bodies of temperate latitudes.
Varduhi Margaryan   +2 more
doaj   +1 more source

Coulombic Quantum Liquids in Spin-1/2 Pyrochlores

open access: yes, 2011
We develop a non-perturbative "gauge Mean Field Theory" (gMFT) method to study a general effective spin-1/2 model for magnetism in rare earth pyrochlores. gMFT is based on a novel exact slave-particle formulation, and matches both the perturbative regime
Balents, Leon, Savary, Lucile
core   +3 more sources

Seabed corrugations beneath an Antarctic ice shelf revealed by autonomous underwater vehicle survey: Origin and implications for the history of Pine Island Glacier [PDF]

open access: yes, 2013
Ice shelves are critical features in the debate about West Antarctic ice sheet change and sea level rise, both because they limit ice discharge and because they are sensitive to change in the surrounding ocean.
Dutrieux, Pierre   +7 more
core   +4 more sources

Identifying transcription factors controlling the basal expression of human MRP4 highlights a substantial role for Sp1

open access: yesFEBS Open Bio, EarlyView.
The MRP4 transporter exports several drugs and signaling molecules. Here, we identified key promoter elements regulating basal MRP4 expression. Using reporter assays, we defined a conserved region with essential Sp1 and contributory Ets sites, which controlled basal MRP4 expression.
Debora Singer   +7 more
wiley   +1 more source

Southern Annular Mode response to volcanic eruptions: implications for ice core proxies [PDF]

open access: yes, 2011
Large tropical volcanic eruptions have been observed to have a significant influence on the large-scale circulation patterns of the Northern Hemisphere, through mechanisms related to the radiative effects of the sulfate aerosols resulting from the ...
Krüger, Kirstin   +4 more
core  

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