Results 111 to 120 of about 5,213,633 (303)

Core Scouring Dynamics and Gravitational Wave Consequences: Constraints on Supermassive Black Hole Binary Hardening

The Astrophysical Journal
We present a multimessenger investigation of supermassive black hole binary (SBHB) hardening by jointly comparing models to the observed stellar mass deficits of nearby core galaxies and to nanohertz gravitational-wave background measurements.
C. J. Harris, Kayhan Gültekin, Laura Blecha   +2 more
doaj   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

FEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace, Alyssa Borges, Charles Arnaud, Tove Karlsson, Nina K. Bröker, Stefanie Barbirz, Marta Bally   +6 more
wiley   +1 more source

The Stellar Populations in the Central Parsecs of Galactic Bulges Central Stellar Populations

, 2004
We present Hubble Space Telescope blue spectra at intermediate spectral resolution for the nuclei of 23 nearby disk galaxies. These objects were selected to have nebular emission in their nuclei, and span a range of emission-line classifications as well as Hubble types.
Sarzi, Marc, Rix, Hans-Walter, Shields, Joseph C., Ho, Luis C., Barth, Aaron J., Rudnick, Gregory, Filippenko, Alexei V., Sargent, Wallace L. W.   +7 more
openaire   +2 more sources

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

Intermediate report on the Delphi study : Findings from the 2nd and the 3rd STELLAR Delphi rounds: Areas of tension and core research areas

, 2011
This intermediate report on the STELLAR Delphi study closes the gap between the first deliverable on the Delphi study D1.3 (Spada et al. 2010) which was published in July 2010 and the second and final deliverable D1.6 which is planned for January 2012 ...
Spada, Hans, Plesch, Christine, Kaendler, Celia   +2 more
core   +1 more source

New Stellar Parameters, Metallicities, and Elemental Abundance Ratios for 311 Metal-poor Stars

The Astronomical Journal
We present equivalent widths, improved model atmosphere parameters, and revised abundances for 14 species of 11 elements derived from high-resolution optical spectroscopy of 311 metal-poor stars.
Sanil Mittal, Ian U. Roederer
doaj   +1 more source

Spatially resolved stellar-to-total dynamical mass relation

Astronomy & Astrophysics
Context. In our standard cosmological model, galaxy assembly is inherently linked to the hierarchical growth of dark matter halos, which provide the gravitational framework in which highly complex baryonic processes unfold.
Scholz-Díaz L., Gallazzi A. R., Zibetti S., Mattolini D.   +3 more
doaj   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

FEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa, Shinya Sugimoto, Toshiro Sato   +2 more
wiley   +1 more source

Protoplanetary disc population synthesis

Astronomy & Astrophysics
Context. Protoplanetary discs are the birthplaces of planets, and their lifetimes determine the time available for planet formation. Recent studies have highlighted the importance of stellar mass sampling when determining disc lifetimes through the ...
Gomez José L., Guilera Octavio M., Miller Bertolami Marcelo M., Castro Martínez Elisa M., Ronco María Paula   +4 more
doaj   +1 more source

Design and analysis strategies for robust microbiome ageing research

FEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik, İsmail Güderer, Yi Wang, Tayyaba Alvi, Prasoon Pandey, Handan Melike Dönertaş   +5 more
wiley   +1 more source