Results 61 to 70 of about 417,027 (232)

DYNAMICS OF NON-STEADY SPIRAL ARMS IN DISK GALAXIES [PDF]

open access: yes, 2012
In order to understand the physical mechanisms underlying non-steady stellar spiral arms in disk galaxies, we analyzed the growing and damping phases of their spiral arms using three-dimensional N-body simulations.
J. Baba, T. Saitoh, K. Wada
semanticscholar   +1 more source

Stellar Populations in Bulges of Spiral Galaxies [PDF]

open access: yesAstrophysics and Space Science, 2002
To be published in "The Evolution of Galaxies. II. Basic Building Blocks", ed. M.
Jablonka, Pascale   +2 more
openaire   +6 more sources

Somato‐Cognitive Action Network in Focal Dystonia

open access: yesMovement Disorders, EarlyView.
Abstract Background The central pathology causing idiopathic focal dystonia remains unclear. The recently identified somato‐cognitive action network (SCAN) has been implicated. Objective We tested whether the effector‐agnostic SCAN may constitute a central pathology shared across dystonia subtypes, whereas the effector‐specific regions in the primary ...
Yuchao Wang   +8 more
wiley   +1 more source

THE TWO-PHASE FORMATION HISTORY OF SPIRAL GALAXIES TRACED BY THE COSMIC EVOLUTION OF THE BAR FRACTION [PDF]

open access: yes, 2012
We study the evolution of galactic bars and the link with disk and spheroid formation in a sample of zoom-in cosmological simulations. Our simulation sample focuses on galaxies with present-day stellar masses in the 1010–1011 M☉ range, in field and loose
K. Kraljic, F. Bournaud, M. Martig
semanticscholar   +1 more source

Simulations of normal spiral galaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2003
Accepted for publication in: Monthly Notices of the Royal Astron. Soc. The astro-ph copy has a few figures with degraded resolution. A copy with high quality graphics (4281 kb) can be downloaded from the kapteyn institute weg page at http://www.astro.rug.nl (Goto preprints and preprints 2003)
openaire   +4 more sources

Betaine‐Conjugated ß‐Peptide Foldamers: Influence of Quaternary Charge on Self‐Organization and MorphologyFormation

open access: yesChemistryOpen, EarlyView.
N‐terminal betaine conjugation modifies β‐peptide helices, influencing folding and self‐organization. For [1S, 2S]‐ACPC, folding to an H12 helix was unaffected, while [1R, 2R]‐ACHC formed an H14 helix instead of H10. Alternating heterochiral oligomers made of enantiomeric pairs of trans‐ACPC showed enhanced solubility and E‐strand formation.
Nikolett Varró   +10 more
wiley   +1 more source

A DIVERSITY OF PROGENITORS AND HISTORIES FOR ISOLATED SPIRAL GALAXIES [PDF]

open access: yes, 2012
We analyze a suite of 33 cosmological simulations of the evolution of Milky-Way-mass galaxies in low-density environments. Our sample spans a broad range of Hubble types at z = 0, from nearly bulgeless disks to bulge-dominated galaxies.
M. Martig   +4 more
semanticscholar   +1 more source

In silico, in vitro and ex vivo characterization of cystic fibrosis transmembrane conductance regulator pathogenic variants localized in the fourth intracellular loop and their rescue by modulators

open access: yesBritish Journal of Pharmacology, EarlyView.
Background and Purpose Cystic fibrosis (CF) is due to loss‐of‐function variants of the CF transmembrane conductance regulator (CFTR) channel. The most effective treatment for people with CF carrying the F508del mutation is the triple combination of elexacaftor–tezacaftor–ivacaftor (ETI).
Emanuela Pesce   +25 more
wiley   +1 more source

Radial Metallicity Distribution Breaks at Corotation Radius in Spiral Galaxies [PDF]

open access: yes, 2012
We analyzed the relation between the corotation radii and the galactic radii at which breaks or changes of slope of the metallicity gradients occur in spiral galaxies.
S. Scarano, J. L'epine
semanticscholar   +1 more source

The Dynamics of the Spiral Galaxy M81 [PDF]

open access: yesSymposium - International Astronomical Union, 1978
The spiral galaxy M81 is a challenging object for testing a density-wave theory. It is of large angular size and favourably inclined to the line of sight; radio observations of neutral atomic hydrogen showing well defined spiral arms with noncircular motions are available (Rots and Shane 1975), and there is evidence from surface photometry for density ...
openaire   +3 more sources

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