Results 31 to 40 of about 2,466 (210)

Interannual and seasonal variability of Arctic sea ice extent according to satellite observations

open access: yesРоссийская Арктика, 2019
The interannual and seasonal changes of Arctic sea ice extent according to satellite observations from 1978–2018 are analyzed. Steady reduction in the sea ice cover over the research period is reported.
Yulin A.V.   +2 more
doaj   +1 more source

Arctic Sea Ice Extent Plummets in 2007 [PDF]

open access: yesEos, Transactions American Geophysical Union, 2008
Arctic sea ice declined rapidly to unprecedented low extents in the summer of 2007, raising concern that the Arctic may be on the verge of a fundamental transition toward a seasonal ice cover.Arctic sea ice extent typically attains a seasonal maximum in March and minimum in September.
Julienne Stroeve   +7 more
openaire   +1 more source

Organ‐specific redox imbalances in spinal muscular atrophy mice are partially rescued by SMN antisense oligonucleotides

open access: yesFEBS Letters, EarlyView.
We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley   +1 more source

Extent and thickness of the Labrador ice-sheet [PDF]

open access: yesGeological Society of America Bulletin, 1920
Introduction The Labrador ice-sheet did not cover the whole of eastern America north of New York, since the Torngat region, in northeastern Labrador, and the Shickshock Mountains, in Gaspe, escaped and remained as driftless areas. On the other hand, in places the ice-sheet passed beyond the present eastern edge of the continent, covering part of the ...
openaire   +2 more sources

Record Early Sea Ice Loss in Southeastern Hudson Bay in Spring 2024

open access: yesGeophysical Research Letters
Hudson Bay seasonal sea‐ice cover plays an important role in marine ecosystems and human activities. Spring 2024 witnessed a uniquely early southeastern opening, leading to basin‐wide sea ice extent falling 5σ below the 1979–2023 average.
C. Soriot, J. Stroeve, A. Crawford
doaj   +1 more source

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

open access: yesFEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai   +9 more
wiley   +1 more source

Comparison of Hemispheric and Regional Sea Ice Extent and Area Trends from NOAA and NASA Passive Microwave-Derived Climate Records

open access: yesRemote Sensing, 2022
Three passive microwave-based sea ice products archived at the National Snow and Ice Data Center (NSIDC) are compared: (1) the NASA Team (NT) algorithm product, (2) Bootstrap (BT) algorithm product, and (3) a new version (Version 4) of the NOAA/NSIDC ...
Walter N. Meier   +3 more
doaj   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa   +5 more
wiley   +1 more source

Ice extent trends in the Barents and Kara Seas during recent climate change

open access: yesРоссийская Арктика
Certain areas of the Arctic region, primarily the Barents and Kara Seas, have high resource potential. This is the place where hydrocarbon deposits are explored and developed, and where the main transport corridor of the Northern Sea Route begins.
Karandasheva T.K.   +3 more
doaj   +1 more source

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

open access: yesFEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura   +2 more
wiley   +1 more source

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