Results 81 to 90 of about 9,540,019 (262)
What Is Missing from the Local Stellar Halo?
The Astrophysical JournalThe Milky Way’s stellar halo, which extends to >100 kpc, encodes the evolutionary history of our Galaxy. However, most studies of the halo to date have been limited to within a few kiloparsecs of the Sun.
Katherine Sharpe +2 more
doaj +1 more source
Stellar archaeology in the Milky Way halo. Variable stars and stellar populations in the new Milky Way ultra-faint dwarfs [PDF]
, 2015 We summarize results from the photometric survey of a number of ultra-faint dwarf satellites of the Milky Way. We are studying these systems in a systematic way to characterize their stellar populations and structural parameters, as well as their ...
MARCONI, Marcella +9 more
core
FEBS Open Bio, EarlyView.The neurokinin 1 receptor exists as full‐length (NK1L) and C‐terminally truncated (NK1S) splice variants. We show that NK1S heterodimerizes with NK1L, impairing Gαq coupling and Ca2+ mobilization while enhancing β‐arrestin1 recruitment. NK1S suppresses substance P‐driven gene expression and cell migration, revealing NK1S as an endogenous biased ...
Lan Phuong Nguyen +8 more
wiley +1 more source
The Astrophysical JournalWe present a comprehensive study of the kinematic properties of the different Galactic disk populations, as defined by the chemical abundance ratios and stellar ages, across a large disk volume (4.5 ≤ R ≤ 15.0 kpc and ∣ Z ∣ ≤ 3.0 kpc), by using the ...
Weixiang Sun +7 more
doaj +1 more source
Modeling Dwarf Satellites Of The Milky Way
, 2020 Dwarf galaxies are the most abundant type of galaxies in the universe. They are the building blocks of hierarchical structure formation, and their shallow gravitational potentials make them extremely sensitive to internal and environmental
Weerasooriya, Sachithra Ishani
core
The C‐terminal domain of yeast Arginyltransferase1 is essential for its catalytic activity
FEBS Open Bio, EarlyView.Arginyltransferase 1 (Ate1), a eukaryotic enzyme, catalyses arginylation, transferring arginine from tRNA‐Arg to the amino terminus of the target protein. Overexpression of Ate1 in yeast is lethal and is dependent on arginylation. This study elucidates how mutations in the cofactor‐binding and active site of Ate1 and truncation of its structural ...
Vikas Kumar Yadav +4 more
wiley +1 more source
The Astrophysical JournalAge is the most difficult fundamental stellar parameter to infer for isolated stars. While isochrone-based ages are in general imprecise for both main-sequence dwarfs and red giants, precise isochrone-based ages can be obtained for stars on the subgiant ...
David M. Nataf +3 more
doaj +1 more source
Are dSph galaxies Galactic building blocks?
EPJ Web of Conferences, 2012 Dwarf spheroidal galaxies (dSph) are frequently assumed to represent surviving examples of a vast now destroyed population of small systems in which many of the stars now forming the Milky Way were formed. Ongoing accretion and considerable sub-structure
Gilmore G., Asiri H.M.
doaj +1 more source
, 2005 The authors discuss how the center of the Milky Way provides the foundation for understanding phenomena in other galaxies. The central black hole and regions of intense star formation in its vicinity can be probed at 100 times the resolution of even the ...
Lazio, T. Joseph W., La Rosa, Ted
core +1 more source
MARK4 enhances stress granule formation under oxidative stress and increases tau accumulation
FEBS Open Bio, EarlyView.MARK4 (red dots) localizes to stress granules (orange dots) and promotes their formation under oxidative stress by modulating TIA1 (blue dots). MARK4 and TIA1 synergistically increase tau (purple) accumulation, and the reduction of the TIA1 ortholog suppresses neurodegeneration in a fly model.
Sho Nakajima +8 more
wiley +1 more source