Results 31 to 40 of about 1,255 (262)

Vertical profiling of aerosol particles and trace gases over the central Arctic Ocean during summer [PDF]

open access: yesAtmospheric Chemistry and Physics, 2013
Unique measurements of vertical size-resolved aerosol particle concentrations, trace gas concentrations and meteorological data were obtained during the Arctic Summer Cloud Ocean Study (ASCOS, www.ascos.se), an International Polar Year project aimed at ...
P. Kupiszewski   +10 more
doaj   +1 more source

Relating arctic pack ice stress and deformation under winter conditions [PDF]

open access: yesJournal of Geophysical Research: Oceans, 2002
Together, thermodynamic and dynamic processes determine the thickness distribution of the ice cover on polar oceans, which governs the exchange of energy between the atmosphere and the ocean. Key to the dynamic processes is the mechanical behavior of the ice cover. During the Surface Heat Budget of the Arctic Ocean (SHEBA) field experiment, we deployed
Jacqueline A. Richter‐Menge   +3 more
openaire   +1 more source

The number and distribution of polar bears in the western Barents Sea

open access: yesPolar Research, 2017
Polar bears have experienced a rapid loss of sea-ice habitat in the Barents Sea. Monitoring this subpopulation focuses on the effects on polar bear demography.
Jon Aars   +7 more
doaj   +1 more source

Sea-Ice Morphology Change in the Canada Basin Summer: 2006–2015 Ship Observations Compared to Observations From the 1960s to the Early 1990s

open access: yesFrontiers in Earth Science, 2018
An ice watch, encompassing visual observation of sea ice conducted from the ship's bridge, is typically performed on sea-ice oriented research cruises.
Jennifer K. Hutchings, M. Kate Faber
doaj   +1 more source

Winter sea ice export from the Laptev Sea preconditions the local summer sea ice cover and fast ice decay [PDF]

open access: yesThe Cryosphere, 2017
Ice retreat in the eastern Eurasian Arctic is a consequence of atmospheric and oceanic processes and regional feedback mechanisms acting on the ice cover, both in winter and summer.
P. Itkin, P. Itkin, T. Krumpen
doaj   +1 more source

Transition in the fractal geometry of Arctic melt ponds [PDF]

open access: yesThe Cryosphere, 2012
During the Arctic melt season, the sea ice surface undergoes a remarkable transformation from vast expanses of snow covered ice to complex mosaics of ice and melt ponds.
C. Hohenegger   +4 more
doaj   +1 more source

The planar cell polarity protein Vangl2 interacts with the PDZ‐domains of Scribble but not with a unique PDZ‐like domain in Inturned

open access: yesFEBS Letters, EarlyView.
Structural and biochemical characterisations show that the planar cell polarity (PCP) protein Inturned harbours a unique PDZ‐like domain that does not bind canonical PDZ‐binding motifs (PBMs) like that of another PCP protein Vangl2. In contrast, the apical‐basal polarity protein Scribble contains four PDZ domains that bind Vangl2, but one PDZ domain ...
Stephan Wilmes   +4 more
wiley   +1 more source

The summer aerosol in the central Arctic 1991–2008: did it change or not? [PDF]

open access: yesAtmospheric Chemistry and Physics, 2012
In the course of global warming dramatic changes are taking place in the Arctic and boreal environments. However, physical aerosol data in from the central summer Arctic taken over the course of 18 yr from 1991 to 2008 do not show systematic year-to-year
J. Heintzenberg, C. Leck
doaj   +1 more source

Integrated genomic and proteomic profiling reveals insights into chemoradiation resistance in cervical cancer

open access: yesMolecular Oncology, EarlyView.
A comprehensive genomic and proteomic analysis of cervical cancer revealed STK11 and STX3 as a potential biomarkers of chemoradiation resistance. Our study demonstrated EGFR as a therapeutic target, paving the way for precision strategies to overcome treatment failure and the DNA repair pathway as a critical mechanism of resistance.
Janani Sambath   +13 more
wiley   +1 more source

Modeling hepatic fibrosis in TP53 knockout iPSC‐derived human liver organoids

open access: yesMolecular Oncology, EarlyView.
This study developed iPSC‐derived human liver organoids with TP53 gene knockout to model human liver fibrosis. These organoids showed elevated myofibroblast activation, early disease markers, and advanced fibrotic hallmarks. The use of profibrotic differentiation medium further amplified the fibrotic signature seen in the organoids.
Mustafa Karabicici   +8 more
wiley   +1 more source

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