Results 71 to 80 of about 5,368 (195)

Modeling Targets and Optimal Frequencies for Imaging the Shadows of Nearby Supermassive Black Holes

open access: yesThe Astrophysical Journal
Horizon-scale imaging of supermassive black holes has opened a new avenue for studying strong-field gravity and plasma physics in low-luminosity accretion flows.
J. Cole Faggert   +2 more
doaj   +1 more source

Identification of a Shiga toxin A‐derived peptide internalized into Gb3 receptor‐bearing cells via interaction with the Shiga toxin B subunit

open access: yesFEBS Letters, Volume 600, Issue 19, Page 2961-2971, October 2026.
The process of internalization of the Shiga toxin A subunit via formation of a complex with the Shiga toxin B subunit, which specifically binds to the Gb3 receptor. The peptide is designed to act as a carrier of drugs into cancer cells. Here, we explored the potential of peptides derived from the catalytic A subunit of Shiga toxin (STxA) to be drug ...
Giulia Opassi   +6 more
wiley   +1 more source

Metrics of Astrometric Variability in the International Celestial Reference Frame. I. Statistical Analysis and Selection of the Most Variable Sources

open access: yesThe Astrophysical Journal Supplement Series
Using very long baseline interferometry data for the sources that comprise the third International Celestial Reference Frame (ICRF3), we examine the quality of the formal source-position uncertainties of ICRF3 by determining the excess astrometric ...
Phil Cigan   +5 more
doaj   +1 more source

Terrestrial very-long-baseline atom interferometry: Workshop summary [PDF]

open access: yesAVS Quantum Science
This document presents a summary of the 2023 Terrestrial Very-Long-Baseline Atom Interferometry Workshop hosted by CERN. The workshop brought together experts from around the world to discuss the exciting developments in large-scale atom interferometer (AI) prototypes and their potential for detecting ultralight dark matter and gravitational waves. The
Abend, Sven   +223 more
openaire   +16 more sources

Cancer‐Associated BCL‐2 Mutants Reveal Mechanisms Towards Venetoclax Resistance

open access: yesAdvanced Science, Volume 13, Issue 57, 14 October 2026.
Venetoclax (VEN) resistance in chronic lymphocytic leukemia arises from diverse BCL2 mutations. We map mechanisms contributing to VEN resistance across common BCL‐2 variants. G101V and D103Y reduce drug binding and increase sequestration of pro‐apoptotic proteins. V156D blocks VEN allosterically.
Jonas Aufdermauer   +9 more
wiley   +1 more source

The Radio Fundamental Catalog. I. Astrometry

open access: yesThe Astrophysical Journal Supplement Series
We present an all-sky catalog of absolute positions and estimates of correlated flux density of 21,942 compact radio sources determined from processing interferometric visibility data of virtually all very long baseline interferometry (VLBI) observing ...
L. Y. Petrov, Y. Y. Kovalev
doaj   +1 more source

Pyrazole‐Derived Antibacterial Compounds Effectively Treat Methicillin‐Resistant Staphylococcus Aureus Infections by Inhibiting Aspartate Transcarbamoylase

open access: yesAdvanced Science, Volume 13, Issue 57, 14 October 2026.
This study unveils a novel antibacterial mechanism against MRSA, in which the compound Py‐27 selectively targets and inhibits aspartate transcarbamoylase (ATCase), a key enzyme in pyrimidine synthesis. This inhibition disrupts DNA replication, induces oxidative damage, leading to potent bactericidal activity.
Xiaorong Yang   +11 more
wiley   +1 more source

VLBI Diagnostics of Off-axis Jets in Radio Flares of Tidal Disruption Events

open access: yesThe Astrophysical Journal
The origin of late-time radio flares in tidal disruption events remains unclear. In particular, the peculiar radio flare observed in AT2018hyz has motivated two leading scenarios: a delayed outflow launched ∼1000 days after discovery, or an off-axis ...
Tatsuya Matsumoto
doaj   +1 more source

Modelling Very Long Baseline Interferometry (VLBI) observations

open access: yesJournal of Geodesy and Geoinformation, 2012
Bu çalışmanın temel amacı Çok Uzun Baz Enterferometrisi VLBI sinyal gecikme modelinin teorik detaylarını Uluslararası Yer Dönüklük ve Referans Sistemleri Servisi IERS 2010 Konvansiyonları temelinde sunmaktır. Bu kapsamda sürekli parçalı lineer ofset CPWLO fonksiyonları ile gün‒içi zamansal çözünürlükte önceden belirlenmiş epoklarda, örneğin: Evrensel ...
Teke, K.   +3 more
openaire   +4 more sources

Maximizing the Energy Density of LNMO‖Graphite Cells by Mitigating First Cycle Losses Associated With Solid Electrolyte Interphase Formation

open access: yesBatteries &Supercaps, Volume 9, Issue 10, October 2026.
The addition of 5 wt% lithium oxalate was shown to compensate the irreversible first cycle capacity loss in LNMO‖Graphite pouch cells. Cells, including the sacrificial salt, showed higher capacities and better cycling stability. This study investigates the use of lithium oxalate (LO) as a pre‐lithiation additive in LNMO‖Graphite pouch cells.
Esther Poncy Mathew   +6 more
wiley   +1 more source

Home - About - Disclaimer - Privacy