Results 41 to 50 of about 802,187 (333)

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

open access: yesFEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo   +2 more
wiley   +1 more source

Global-scale parameters for ecological models

open access: yesScientific Data, 2023
Measurement(s) habitat similarity • Time Series Analysis • Principal Component Technology Type(s) Habitat Representativeness Score • Cross-Correlation • Principal Component Analysis Factor Type(s) Sea-bottom and sea-surface dissolved oxygen, salinity ...
Gianpaolo Coro   +2 more
doaj   +1 more source

Sea Surface Temperatures: Seasonal Persistence and Trends [PDF]

open access: yesJournal of Atmospheric and Oceanic Technology, 2019
AbstractThis paper addresses analysis of the global monthly sea surface temperatures using a reconstructed dataset that goes back to 1884. We use fractional integration methods to examine features such as persistence, seasonality, and time trends in the data. The results show that seasonality is a relevant issue, finding evidence of seasonal unit roots.
Gil Alana, Luis A.   +2 more
openaire   +2 more sources

Structural insights into lacto‐N‐biose I recognition by a family 32 carbohydrate‐binding module from Bifidobacterium bifidum

open access: yesFEBS Letters, EarlyView.
Bifidobacterium bifidum establishes symbiosis with infants by metabolizing lacto‐N‐biose I (LNB) from human milk oligosaccharides (HMOs). The extracellular multidomain enzyme LnbB drives this process, releasing LNB via its catalytic glycoside hydrolase family 20 (GH20) lacto‐N‐biosidase domain.
Xinzhe Zhang   +5 more
wiley   +1 more source

The Effect of Milankovitch Variations in Insolation on Equatorial Seasonality [PDF]

open access: yes, 2010
Although the sun crosses the equator 2 times per year at the equinoxes, at times in the past the equatorial insolation has had only one maximum and one minimum throughout the seasonal cycle because of Milankovitch orbital variations.
Ashkenazy, Yosef   +3 more
core   +2 more sources

Peptide‐based ligand antagonists block a Vibrio cholerae adhesin

open access: yesFEBS Letters, EarlyView.
The structure of a peptide‐binding domain of the Vibrio cholerae adhesin FrhA was solved by X‐ray crystallography, revealing how the inhibitory peptide AGYTD binds tightly at its Ca2+‐coordinated pocket. Structure‐guided design incorporating D‐amino acids enhanced binding affinity, providing a foundation for developing anti‐adhesion therapeutics ...
Mingyu Wang   +9 more
wiley   +1 more source

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

open access: yesFEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source

Spatial Non-Uniformity of Surface Temperature of the Dead Sea and Adjacent Land Areas

open access: yesRemote Sensing, 2019
Pronounced spatial non-uniformity has been obtained of daytime sea surface temperature (SST) of the Dead Sea and of land surface temperature (LST) over areas adjacent to the Dead Sea.
Pavel Kishcha   +4 more
doaj   +1 more source

Assessment of Climate Changes in the Caspian Sea by trend analyzing the sea surface temperature [PDF]

open access: yesمخاطرات محیط طبیعی, 2019
Changes the Sea surface temperature and lake can have significant impacts on marine ecosystems and the lives of human societies on the edges of these seas.
Akbar Zahraei   +2 more
doaj   +1 more source

Increasing occurrence of cold and warm extremes during the recent global warming slowdown. [PDF]

open access: yes, 2018
The recent levelling of global mean temperatures after the late 1990s, the so-called global warming hiatus or slowdown, ignited a surge of scientific interest into natural global mean surface temperature variability, observed temperature biases, and ...
Johnson, Nathaniel C   +3 more
core   +2 more sources

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