Results 41 to 50 of about 2,215,341 (299)
Host Galaxies and the Spectral Variability of Quasars [PDF]
, 2001 Brightness variability of QSOs is associated with variations of the spectral energy distribution in the optical-UV range. The observed change of the spectral shape depends on the contribution of the host galaxy. Simulations, taking into account luminosities and spectra expected for the host galaxies, are compared with the observed spectral variability ...
VAGNETTI, FAUSTO, Trevese, D.
openaire +3 more sources
Intra- and Inter-Individual Spectral Pattern Variability of sEMG in Elbow Flexor Motor Tasks
SensorsUnderstanding intra- and inter-individual variability in muscle activation is essential for applications in rehabilitation, ergonomics, and motor control research.
Piotr S. Wawryka +5 more
doaj +1 more source
The spectral variability of FSRQs
, 2011 The optical variability of 29 flat spectrum radio quasars in SDSS Stripe 82 region are investigated by using DR7 released multi-epoch data. All FSRQs show variations with overall amplitude ranging from 0.24 mag to 3.46 mag in different sources. About half of FSRQs show a bluer-when-brighter trend, which is commonly observed for blazars.
Gu, Minfeng, Ai, Y. L.
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Heart rate variability analysis in general medicine. [PDF]
, 2003 Autonomic nervous system plays an integral role in homeostasis. Autonomic modulation can frequently be altered in patients with cardiac disorders as well as in patients with other critical illnesses or injuries.
Malik, M, Gang, Y
core +2 more sources
OPTICAL POLARIZATION AND SPECTRAL VARIABILITY IN THE M87 JET [PDF]
The Astrophysical Journal, 2011 14 pages, 7 figures, ApJ, in ...
Perlman, Eric S. +12 more
openaire +4 more sources
Sun-as-a-star variability of Hα and Ca II 854.2 nm lines
Frontiers in Astronomy and Space SciencesStudies of stellar magnetic fields mostly rely on proxies derived from chromospheric lines, typically forming in the UV and shorter wavelengths and therefore accessible only from space based observatories.
Garrett Zills +3 more
doaj +1 more source
An examination of the spectral variability in NGC 1365 with Suzaku [PDF]
Monthly Notices of the Royal Astronomical Society, 2013 19 pages, 11 figures, accepted for publication in ...
Brenneman L. W. +3 more
openaire +3 more sources
Central Nervous System Tumors Among Infants in Canada: A Report From CYP‐C
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Central nervous system (CNS) tumors in infants are rare, pose unique clinical challenges, and lack large‐scale evidence‐based data to guide management. This study seeks to describe CNS tumors in Canadian infants and to compare their outcomes with those of older children.
Samuel Sassine +17 more
wiley +1 more source
IEEE Journal of Selected Topics in Applied Earth Observations and Remote SensingThe inherent fuzziness of wetland ecosystems largely accounts for the spectral variability of wetland ecosystems in remote sensing images. In addition, a limited spatial resolution leads to the presence of many mixed pixels in middle-resolution ...
Jifa Guo, Shihong Du
doaj +1 more source
Redshift Dependence of QSO Spectral Variability
, 2004 We present a combined analysis of the optical spectral variability for two samples of QSOs, 42 objects at $z<0.4$ monitored at the Wise Observatory (Giveon et al 1999), plus 59 objects up to $z\sim 3$ in the field of the Magellanic Clouds, detected and/or monitored within the MACHO Project database (Geha et al 2003). Our analysis shows some increase
VAGNETTI, FAUSTO, Trevese, D.
openaire +4 more sources