Performance of the Quasar Spectral Templates for the Dark Energy Spectroscopic Instrument [PDF]
The Astronomical Journal, 2023 Millions of quasar spectra will be collected by the Dark Energy Spectroscopic Instrument (DESI), leading to a fourfold increase in the number of known quasars.
Allyson Brodzeller +46 more
doaj +2 more sources
A streamlined workflow for comprehensive 4DCT imaging QA with automated analysis of spatial integrity and image quality. [PDF]
J Appl Clin Med PhysAbstract Purpose A comprehensive 4DCT QA program that includes the assessment of spatial integrity and image quality of 4D phantom scans can be resource‐intensive, especially because the analysis burden scales with the number of motion traces used for QA.
Yang Y +8 more
europepmc +2 more sources
Guselkumab in East Asians With Moderate-to-Severe Ulcerative Colitis: Subgroup Analysis of the QUASAR Induction and Maintenance Studies. [PDF]
J Gastroenterol HepatolABSTRACT Background and Aim The global QUASAR (NCT04033445) clinical program demonstrated the efficacy and safety of guselkumab, a dual‐acting interleukin‐23 p19 subunit inhibitor, as induction and maintenance therapy in participants with moderate to severely active ulcerative colitis (UC).
Chen B +12 more
europepmc +2 more sources
Quantitative susceptibility mapping in magnetically inhomogeneous tissues. [PDF]
Magn Reson MedAbstract Purpose Conventional quantitative susceptibility mapping (QSM) methods rely on simplified physical models that assume isotropic and homogeneous tissue properties, leading to artifacts and inaccuracies in biological tissues. This study aims to develop and evaluate DEEPOLE, a deep learning–based method that incorporates macroscopically ...
Jochmann T +6 more
europepmc +2 more sources
Explainable AI for raising confidence in deep learning-based tumor tracking models. [PDF]
Med PhysAbstract Background Recently, tumor position monitoring using fluoroscopic images acquired during volumetric modulated arc therapy (VMAT) delivery has become available in a research setting. Accurate tracking during stereotactic body radiotherapy (SBRT), using VMAT, for lung tumors can help to ensure that the tumor is only irradiated when it is inside ...
Grama D +3 more
europepmc +2 more sources
Sentinel-2 enabled E. coli and Enterococcus faecal bacteria surveillance in coastal-recreational waters [PDF]
Scientific ReportsMonitoring faecal indicator bacteria (FIB), such as Escherichia coli (E. coli) and Enterococcus, in recreational waters is crucial for public health and environmental safety.
Masuma Chowdhury +2 more
doaj +2 more sources
A Main Sequence for Quasars [PDF]
Frontiers in Astronomy and Space Sciences, 2018 The last 25 years saw a major step forward in the analysis of optical and UV spectroscopic data of large quasar samples. Multivariate statistical approaches have led to the definition of systematic trends in observational properties that are the basis of
Paola Marziani +9 more
doaj +7 more sources
A Catalog of Quasar Properties from Sloan Digital Sky Survey Data Release 16 [PDF]
Astrophysical Journal Supplement Series, 2022 We present a catalog of continuum and emission-line properties for 750,414 broad-line quasars included in the Sloan Digital Sky Survey Data Release 16 quasar catalog (DR16Q), measured from optical spectroscopy.
Qiaoya Wu, Yue Shen
semanticscholar +1 more source
The DESI Survey Validation: Results from Visual Inspection of the Quasar Survey Spectra [PDF]
Astronomical Journal, 2022 A key component of the Dark Energy Spectroscopic Instrument (DESI) survey validation (SV) is a detailed visual inspection (VI) of the optical spectroscopic data to quantify key survey metrics. In this paper we present results from VI of the quasar survey
D. Alexander +71 more
semanticscholar +1 more source
Detection of stellar light from quasar host galaxies at redshifts above 6 [PDF]
Nature, 2022 The detection of starlight from the host galaxies of quasars during the reionization epoch ( z > 6) has been elusive, even with deep Hubble Space Telescope observations^ 1 , 2 .
Xuheng Ding +43 more
semanticscholar +1 more source