Results 111 to 120 of about 41,072 (339)
A deep HST view of the open cluster NGC2158: Binaries, mass functions, and M-dwarf discontinuity
Astronomy & AstrophysicsA significant fraction of stars in both the Galactic field and stellar clusters belong to binary systems. Understanding their properties is therefore fundamental for a comprehensive picture of stellar structure, stellar evolution, and cluster dynamics ...
Marchuk A. V. +15 more
doaj +1 more source
Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?
FEBS Letters, EarlyView.This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes +3 more
wiley +1 more source
EPJ Web of Conferences, 2011 The form and universality of the mass function of young and nearby star-forming regions is still under debate. Its relation to the stellar density, its mass peak and the dependency on most recent models shows significant differencies for the various ...
Barrado y Navascués D. +3 more
doaj +1 more source
Kinematics of stellar associations: the epicycle approximation and the convergent point method [PDF]
, 2004 В. В. Макаров +2 more
openalex +1 more source
Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation
FEBS Letters, EarlyView.Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe +3 more
wiley +1 more source
LAMOST Reveals Long-lived Protoplanetary Disks
The Astronomical JournalWhile both observations and theories demonstrate that protoplanetary disks are not expected to live much longer than ∼10 Myr, several examples of prolonged disks have been observed in the past.
Xiao-Long Wang +4 more
doaj +1 more source
Disruption of Planetary System Architectures by Stellar Flybys
UniverseWe investigate the survivability of solar system-like planetary systems during close encounters in stellar associations using a suite of 1980 N-body simulations.
Robert Przyłuski +9 more
doaj +1 more source
New low-mass members of the Octans stellar association and an updated 30–40 Myr lithium age [PDF]
, 2014 Simon J. Murphy, W. A. Lawson
openalex +1 more source
The newfound relationship between extrachromosomal DNAs and excised signal circles
FEBS Letters, EarlyView.Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley +1 more source
The Astrophysical JournalYoung associations record complete histories of star-forming events through their demographics and dynamics, and Gaia has greatly expanded our knowledge of these associations.
Ronan Kerr +4 more
doaj +1 more source