Results 121 to 130 of about 7,481 (302)

Biophysical approaches for studying viral entry

FEBS Letters, EarlyView.
Viruses infect all living organisms and have been responsible for major epidemics and pandemics. Their ongoing evolutionary battle with host defenses creates a constant need for improved tools to study viral behavior. Advancing methods to probe viral attachment, fusion, and genome release deepen our understanding of how infections begin and support the
Inbar Yosibash, Raya Sorkin
wiley   +1 more source

The axisymmetric stellar wind of AG Carinae

The Astrophysical Journal, 1994
We present optical linear spectropolarimetry of the Luminous Blue Variable AG Carinae obtained after a recent visual brightness increase. The absence of He II lambda 4686 emission, together with the weakening of the He I spectrum and the appearance of Fe lines in the region around 5300 A, confirm that AG Car has started a new excursion across the HR ...
Regina E. Schulte-Ladbeck, Geoffrey C. Clayton, D. John Hillier, Tim J. Harries, Ian D. Howarth   +4 more
openaire   +1 more source

The human gut microbiome across the life course

FEBS Letters, EarlyView.
Despite significant individual variation and continuous change throughout life, the human gut microbiome follows some life stage‐specific trends. This article provides a brief overview of how gut microbiome composition shifts across different phases of life. Created in BioRender. Özkurt, E. (2026) https://BioRender.com/8q4nrnc.
Alise J. Ponsero, Basak Bahcivanci, Antonietta Hayhoe, Animesh Acharjee, Ezgi Özkurt   +4 more
wiley   +1 more source

Estimating stellar ages and metallicities from parallaxes and broadband photometry : Successes and shortcomings

, 2019
A deep understanding of the Milky Way galaxy, its formation and evolution requires observations of huge numbers of stars. Stellar photometry, therefore, provides an economical method to obtain intrinsic stellar parameters.
Church, Ross P., Church, Ross P.,, Lindegren, Lennart, Feltzing, Sofia, Thomas Bensby, Lindegren, Lennart,, Lennart Lindegren, Sofia Feltzing, Bensby, Thomas, Ross P. Church, Feltzing, Sofia,, Louise M. Howes, Howes, Louise M., Lund University., Bensby, Thomas,   +14 more
core   +1 more source

On the origin and evolution of life in the Galaxy [PDF]

, 2010
A simple stochastic model for evolution, based upon the need to pass a sequence of n critical steps is applied to both terrestrial and extraterrestrial origins of life. In the former case, the time at which humans have emerged during the habitable period
McCabe, Michael, Michael McCabe, Lucas, H., Holly Lucas   +3 more
core   +1 more source

Degradation mechanism of the von Willebrand factor A2 domain by nattokinase

FEBS Letters, EarlyView.
Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto, Masatomo So, Ayako Furukawa, Kenji Sugase   +3 more
wiley   +1 more source

LEGA-C stellar population scaling relations

Astronomy & Astrophysics
We analysed the stellar population properties of a well-defined sample of 552 galaxies at redshift 0.6 
Gallazzi Anna R., Zibetti Stefano, van der Wel Arjen, Nersesian Angelos, Kaushal Yasha, Bezanson Rachel, D’Eugenio Francesco, Bell Eric F., Leja Joel, Scholz-Diaz Laura, Wu Po-Feng, Pacifici Camilla, Maseda Michael, Mattolini Daniele   +13 more
doaj   +1 more source

The ubiquitin‐proteasome system and autophagy as guardians of the cellular proteome

FEBS Letters, EarlyView.
This Perspective covers the three principles governing the crosstalk between the ubiquitin‐proteasome system and autophagy in cellular proteostasis: (1) a shared ubiquitin code routing substrates via shuttle factors or autophagy receptors; (2) spatial compartmentalization into phase‐separated degradation hubs and organelle‐specific modules (exemplified
Ivan Dikic
wiley   +1 more source

Bayesian ages of local young stellar associations

Context. Local young stellar associations (LYSAs
P. A. B. Galli, J. Olivares, N. Miret-Roig, H. Bouy   +3 more
core   +1 more source

Microbiome−host proteostasis crosstalk—An emerging perspective on mechanisms and interventions toward healthy longevity

FEBS Letters, EarlyView.
Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley   +1 more source