THE ORIGIN OF BRIGHT X-RAY SOURCES IN MULTIPLE STARS [PDF]
Luminous X-ray stars are very often found in visual double or multiple stars. Binaries with periods of a few days possess the highest degree of coronal X-ray activity among regular, non-relativistic stars because of their fast, tidally driven rotation ...
V. Makarov, P. Eggleton
semanticscholar +1 more source
A working model for cytoplasmic assembly of H/ACA snoRNPs
Dyskerin is the component of nuclear H/ACA ribonucleoproteins (RNPs) endowed with pseudouridine synthase catalytic activity. Two isoforms of human dyskerin have been characterized: the abundant Iso1, mainly nuclear, and the shorter Iso3, mainly cytoplasmic but occasionally imported into nuclei.
Alberto Angrisani, Maria Furia
wiley +1 more source
Roadmap on the theoretical work of BinaMIcS [PDF]
We review the different theoretical challenges concerning magnetism in interacting binary or multiple stars that will be studied in the BinaMIcS (Binarity and Magnetic Interactions in various classes of Stars) project during the corresponding ...
Alecian, E. +4 more
core +1 more source
The influence of multiple stars on the high-mass stellar initial mass function and age-dating of young massive star clusters [PDF]
The study of young stellar populations has revealed that most stars are in binary or higher order multiple systems. In this study, the influence on the stellar initial mass function (IMF) of large quantities of unresolved multiple massive stars is ...
C. Weidner, P. Kroupa, T. Maschberger
semanticscholar +1 more source
Imeglimin attenuates liver fibrosis by inhibiting vesicular ATP release from hepatic stellate cells
Imeglimin, at clinically relevant concentrations, inhibits vesicular ATP accumulation and release from hepatic stellate cells, thereby attenuating purinergic signaling and reducing fibrogenic activation. This mechanism reveals a newly identified antifibrotic action of imeglimin beyond glycemic control.
Seiji Nomura +8 more
wiley +1 more source
Exploring Thousands of Nearby Hierarchical Systems with Gaia and Speckle Interferometry
There should be about 10,000 stellar hierarchical systems within 100 pc with primary stars more massive than 0.5 M _⊙ , and a similar amount of less-massive hierarchies.
Andrei Tokovinin
doaj +1 more source
Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley +1 more source
The Frequency of Mid-Infrared Excess Sources in Galactic Surveys [PDF]
We have identified 230 Tycho-2 Spectral Catalog stars that exhibit 8 micron mid-infrared extraphotospheric excesses in the MidCourse Space Experiment (MSX) and Spitzer Space Telescope Galactic Legacy MidPlane Survey Extraordinaire (GLIMPSE) surveys.
A. J. Monson +34 more
core +3 more sources
CCD MEASUREMENTS OF DOUBLE AND MULTIPLE STARS AT NAO ROZHEN: ORBITS AND LINEAR FITS OF FIVE PAIRS
Using the 2 m telescope of the Bulgarian National Astronomical Observatory at Rozhen, observations of 145 double or multiple stars were carried out during three nights on 2010 September 7–9.
Z. Cvetkovic +3 more
semanticscholar +1 more source
RAD50 missense variants differentially affect the DNA damage response and mitotic progression
RAD50 incorporates into the MRN complex and initiates the DNA damage response. Furthermore, RAD50 promotes mitotic progression. RAD50 missense variants capable of forming an MRN complex supported the DNA damage response and mitotic features to different extents in complementation experiments, indicating these functions are separable and might impact ...
Hanna Redeker +9 more
wiley +1 more source

