Results 51 to 60 of about 744 (246)

Prevalence of Systemic Lupus Erythematosus in Australia, 2010–2022: A Population‐Based Study Using Linked National Administrative Health Data

open access: yesArthritis Care &Research, Accepted Article.
Objectives Systemic lupus erythematosus (SLE) is a heterogenous inflammatory condition, with widely varying global prevalence estimates. Frequency of SLE in the general population of Australia has been reported to be notably lower than contemporary estimates in countries such as the US or UK at 19‐39 per 100,000 as opposed to 65‐97 per 100,000.
Lucinda Roper   +7 more
wiley   +1 more source

Self-organized Criticality across 13 Orders of Magnitude in the Solar–Stellar Connection

open access: yesThe Astrophysical Journal
The observed size distributions of solar and stellar flares are found to be consistent with the predictions of the fractal-diffusive self-organized criticality (FD-SOC) model, which predicts power-law slopes with universal constants of α _F  = (9/5) = 1 ...
Markus J. Aschwanden   +1 more
doaj   +1 more source

On the gamma-activity of stellar flares [PDF]

open access: yesSymposium - International Astronomical Union, 1990
The principal possibility of γ-ray manifestation of stellar flares in the framework of pinch-model is shown. Validity of assumption that, γ-bursts are connected with magnetically active dwarfs (MAD) is discussed.
H. A. Harutyunian, V. S. Hayrapetyan
openaire   +1 more source

Radio and Optical Flares on the dMe Flare Star EV Lac

open access: yesThe Astrophysical Journal
We present the results of a coordinated campaign to observe radio and optical stellar flares from the nearby M dwarf flare star EV Lac. From a total of 27 hr of radio and 29 hr of optical observations, we examine the correspondence of the action of ...
Rachel A. Osten   +6 more
doaj   +1 more source

X-Ray, Near-ultraviolet, and Optical Flares Produced by Colliding Magnetospheres in the Young High-eccentricity Binary DQ Tau

open access: yesThe Astrophysical Journal, 2023
DQ Tau is a unique young high-eccentricity binary system that exhibits regular magnetic reconnection flares and pulsed accretion near periastron. We conducted NuSTAR, Swift, and Chandra observations during the 2022 July 30 periastron to characterize X ...
Konstantin V. Getman   +5 more
doaj   +1 more source

Multichannel spectrophotometry of stellar flares

open access: yesThe Astrophysical Journal, 1980
Stellar flares have been observed using the 32 channel spectrophotometer on the 5 m telescope. Net flare fluxes in the region 3200-7000 A are presented. A simple model of blackbody radiation and hydrogen recombination emission appears to fit the continuum points well.
S. W. Mochnacki, H. Zirin
openaire   +1 more source

Scaling Laws of Solar and Stellar Flares [PDF]

open access: yesThe Astrophysical Journal, 2008
9 Figs., (paper in press, The Astrophsycial Journal)
Aschwanden, Markus J.   +2 more
openaire   +2 more sources

Clinical Significance of Therapeutic Drug Level Monitoring for Mycophenolate in Patients with Extra‐Renal Systemic Lupus Erythematosus – A Systematic Review & Meta‐analysis

open access: yesArthritis Care &Research, Accepted Article.
Background Clinical response to Mycophenolic acid (MPA) is highly heterogeneous; thus, therapeutic drug monitoring (TDM) may help improve treatment efficacy. This systematic review and meta‐analysis examined therapeutic ranges for MPA levels associated with better outcomes and safety in patients with SLE, particularly those with extra‐renal ...
Zahraa Qamhieh   +5 more
wiley   +1 more source

Sun-as-a-star Analysis of the X1.6 Flare on 2023 August 5: Dynamics of Postflare Loops in Spatially Integrated Observational Data

open access: yesThe Astrophysical Journal Letters
Postflare loops are loop-like plasmas observed during the decay phase of solar flares, and they are expected to exist for stellar flares. However, it is unclear how postflare loops are observed in stellar flares’ cases.
Takato Otsu   +3 more
doaj   +1 more source

Polarimetry of stellar active regions and flares [PDF]

open access: yesSolar Physics, 1989
AbstractObservations of regular and irregular polarimetric variability in late-type stars are reviewed, and the related physical and geometrical effects are discussed. There are indications that the irregular part of the variability could be caused by transient events, possibly associated with flares.
I. Tuominen   +4 more
openaire   +1 more source

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