Results 61 to 70 of about 1,915,574 (342)

Seasonal Cycle of Idealized Polar Clouds: Large Eddy Simulations Driven by a GCM [PDF]

open access: gold, 2021
Xiyue Zhang   +4 more
openalex   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

open access: yesFEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo   +2 more
wiley   +1 more source

Two-dimensional chromatography on silica gel-loaded paper for the microanalysis of polar lipids

open access: yesJournal of Lipid Research, 1966
Two-dimensional chromatography on commercially available silica gel-loaded paper for the microanalysis of polar lipids from various tissues is described. All common phospholipids and their lyso derivatives can be reproducibly separated.
R.E. Wuthier
doaj   +1 more source

Multiple ETS family transcription factors bind mutant p53 via distinct interaction regions

open access: yesFEBS Letters, EarlyView.
Mutant p53 gain‐of‐function is thought to be mediated by interaction with other transcription factors. We identify multiple ETS transcription factors that can bind mutant p53 and found that this interaction can be promoted by a PXXPP motif. ETS proteins that strongly bound mutant p53 were upregulated in ovarian cancer compared to ETS proteins that ...
Stephanie A. Metcalf   +6 more
wiley   +1 more source

Networks of international co-authorship in journal articles about Antarctic research, 1998–2015

open access: yesPolar Research, 2020
This study seeks insight into the social structure of Antarctic research from 1998 to 2015 by examining peer-reviewed journal articles listed in the Science Citation Index of the Web of Science database.
Duckhee Jang, Soogwan Doh, Yongjin Choi
doaj   +1 more source

Belief Propagation Decoding of Polar Codes on Permuted Factor Graphs

open access: yes, 2018
We show that the performance of iterative belief propagation (BP) decoding of polar codes can be enhanced by decoding over different carefully chosen factor graph realizations.
Brink, Stephan ten   +3 more
core   +1 more source

Bacterial polarity

open access: yesCurrent Opinion in Cell Biology, 2011
Many recent studies have revealed exquisite subcellular localization of proteins, DNA, and other molecules within bacterial cells, giving credence to the concept of prokaryotic anatomy. Common sites for localized components are the poles of rod-shaped cells, which are dynamically modified in composition and function in order to control cellular ...
Grant R, Bowman   +2 more
openaire   +3 more sources

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

open access: yesFEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka   +11 more
wiley   +1 more source

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

open access: yesFEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva   +10 more
wiley   +1 more source

The Influence of Ocean Swell and Wind Waves on Iceberg Melting

open access: yesGeophysical Research Letters
Free‐floating icebergs are important sources of cold freshwater to the polar oceans, influencing both ocean circulation and climate. The influence of ubiquitous oscillatory flows, like those resulting from local wind‐driven waves and swells, on melting ...
James K. Sweetman   +2 more
doaj   +1 more source

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