Results 61 to 70 of about 20,438 (217)
Journal of Applied Clinical Medical Physics, Volume 26, Issue 10, October 2025.Abstract Purpose In electron beam therapy targeting superficial thoracic and abdominal lesions, the source‐to‐surface distance (SSD) varies due to patient respiration. This study aimed to investigate the percentage depth dose (PDD) and off‐center ratio (OCR) of 6, 9, and 12 MeV electron beams at extended SSDs; and to assess the variations in dose ...
Takaaki Ito +4 more
wiley +1 more source
Comprehensive Connection among the Quasars with Different Types of Outflow Absorption Lines
The Astrophysical JournalIt is commonly accepted that outflows from the central regions of quasars play a substantial role in regulating the global properties of the host galaxy. These outflows are typically detected through blueshifted absorption lines.
Xing-Long Peng +4 more
doaj +1 more source
WITNESSING THE BIRTH OF A QUASAR [PDF]
The Astronomical Journal, 2010 27 pages, 5 figures. Updated references.
Takamitsu Tanaka +2 more
openaire +2 more sources
Chemistry &Biodiversity, Volume 22, Issue 10, October 2025.ABSTRACT Volatile secondary metabolites in plants can serve as valuable biomarkers for the plant's health, stress response, and pest or disease detection. We have investigated the volatilome of Acer saccharum (sugar maple) leaves using two complementary extraction techniques: headspace‐solid phase micro‐extraction coupled with gas chromatography‐mass ...
Jean‐Christophe Séguin +2 more
wiley +1 more source
Narrow [O iii] Emission Lines as a Potential Proxy for the Evolutionary Stage of Quasars
The Astrophysical JournalRadio spectral shape of quasars can provide insight into the ages of quasars. We have compiled data for 1804 quasars with z ≲ 1 from the Sloan Digital Sky Survey (SDSS).
Zhi-fu Chen +3 more
doaj +1 more source
The Study of the Circumgalactic Medium with Quasar Pairs
The Astrophysical Journal Supplement Series, 2023 We have collected 10,025 foreground–background quasar pairs with projected distances d _p < 500 kpc from the large quasar catalog of the Sloan Digital Sky Survey DR16Q. We investigate the properties of the Mg ii absorption lines with W _r > 0.15 Å around
Zhi-Fu Chen +7 more
doaj +1 more source
Quasars in the COSMOS Field [PDF]
The Astrophysical Journal, 2006 Accepted for publication in ApJ; emulateapj style; 25 pages, 13 figures, 4 ...
Prescott, M. K. M. +3 more
openaire +5 more sources
AllBRICQS: The Discovery of Luminous Quasars in the Northern Hemisphere
The Astrophysical Journal Supplement SeriesWe present the second catalog of bright quasars from the All-sky BRIght, Complete Quasar Survey (AllBRICQS), focusing on spectroscopically observed quasars in the Northern Hemisphere with Galactic latitude ∣ b ∣ > 10°.
Yunyi Choi +18 more
doaj +1 more source
NONO Maintains SREBP‐Regulated Cholesterol Biosynthesis via RNA Binding in Neuroblastoma
The FASEB Journal, Volume 39, Issue 18, 30 September 2025.We identified that NONO plays a role in maintaining sterol regulatory element—binding protein (SREBF)‐regulated cholesterol biosynthesis in high‐risk neuroblastoma. A small molecule ligand (R)‐SKBG‐1 that modulates the RNA binding activity of NONO significantly decreased the SREBF‐cholesterol pathway, highlighting the importance of manipulating RNA ...
Song Zhang +10 more
wiley +1 more source
The Astrophysical Journal, 2023 We present bolometric luminosity ( L _bol ) and black hole (BH) mass ( M _BH ) estimators based on mid-infrared (MIR) continuum luminosity (hereafter, L _MIR ) that are measured from infrared (IR) photometric data.
Dohyeong Kim +6 more
doaj +1 more source