Results 101 to 110 of about 1,969,946 (307)
Aerial strip surveys of polar bears in the Barents Sea
, 1990 Aerial strip surveys of polar bears in the Barents Sea were performed by helicopter in winter 1987. The number of bears within 100 m on each side of the helicopter was counted. A total of 263.6 km2 was surveyed and 21 bears were counted.
Wiig, Øystein, Bakken, Vidar
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Hash-Polar Codes With Application to 5G
IEEE Access, 2019 This paper presents a kind of concatenated polar codes called hash-polar codes with flexible outer code lengths, in which a hash function-based encoder is used as an outer encoder.
Peiyao Chen +4 more
doaj +1 more source
FEBS Open Bio, EarlyView.Hyperosmotic stress triggers the relocation of the CFIm complex from the nucleus to the cytoplasm. This shift creates a nuclear ‘stoichiometric bottleneck’, limiting CFIm availability for mRNA processing. Consequently, specific mRNAs like NUDT21 and DICER1 undergo targeted 3′UTR shortening, demonstrating how spatial protein dynamics drive rapid ...
Hitomi Soumiya +2 more
wiley +1 more source
CoRRIn this paper, we introduce stitched polar codes, a novel generalization of Arıkan's regular polar codes. Our core methodology reconfigures the fundamental polarization process by stitching additional structures to enhance the reliability of less reliable information bits in the original code.
Yuan Li 0034 +6 more
openaire +2 more sources
Polar codes for distributed source coding [PDF]
Electronics Letters, 2013 A polar coding method to construct a distributed source coding scheme which can achieve any point on the dominant face of the Slepian‐Wolf rate region for sources with uniform marginals is proposed.
openaire +6 more sources
Ionomycin suppresses cancer cell growth by disrupting mitochondrial transcription
FEBS Open Bio, EarlyView.In this study, we identify a new function for the selective Ca2+ ionophore, ionomycin, as an inhibitor of mitochondrial transcription. Both total and nascent RNA analyses revealed that ionomycin treatment reduces the transcription of mitochondrial genes.
Lishen Wang +10 more
wiley +1 more source
Polar Research evolves, and Norway and the IPY
, 2007 March marks the start of the International Polar Year (IPY) and I am very pleased to announce on this occasion that we’ve joined hands with Blackwell Publishing, which will henceforth publish the journal while editorial control remains with the editorial
Goldman, Helle V.
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FEBS Open Bio, EarlyView.Lactoferrin promotes wound healing by activating MAPK, PI3K/Akt, and extracellular matrix pathways, enhancing fibroblast remodeling, proliferation, and re‐epithelialization. These mechanisms highlight its therapeutic potential in inflammation control, tissue repair, and remodeling.
Morgana Lüdtke Azevedo +4 more
wiley +1 more source
Revisiting perceptions and evolving culture: a community dialogue on women in polar research
, 2018 Women have made outstanding contributions to polar research in recent decades, though full engagement may be hindered by persistent inequities, including notably the prevalence of workplace harassment.
Seag, M. +3 more
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Polar bear predation on barrier island bird colonies in Arctic Alaska increases with sea-ice decline
Anthropogenic carbon emissions are warming the Arctic, disrupting ecosystems, and changing the behaviour and interactions of their component species. As summer sea ice diminishes, polar bears (Ursus maritimus) are losing access to traditional seal prey ...
Van der Laan, Anneke +3 more
core +1 more source