Results 1 to 10 of about 1,643,403 (372)
The Event Horizon Telescope Image of the Quasar NRAO 530 [PDF]
The Astrophysical Journal, 2023 We report on the observations of the quasar NRAO 530 with the Event Horizon Telescope (EHT) on 2017 April 5−7, when NRAO 530 was used as a calibrator for the EHT observations of Sagittarius A*.
S. Jorstad +269 more
semanticscholar +11 more sources
A 530-GHz balanced mixer [PDF]
IEEE Microwave and Guided Wave Letters, 1999 We report on the design and performance of a 530-GHz balanced SIS mixer, the first balanced mixer in this frequency range. This quasi-optical balanced mixer utilizes a cross-slot antenna on a hyperhemispherical substrate lens with eight superconductor ...
Chattopadhyay, Goutam +4 more
core +4 more sources
Hystrix, the Italian Journal of Mammalogy, 2008 Proceedings of the 5<sup>th</sup> European Congress of Mammalogy - Siena, Italy, 21-26 September 2007<br> <strong>Part V [pp.
Hystrix Editor
doaj +3 more sources
Periodic Radio Variability in NRAO 530: Phase Dispersion Minimization Analysis [PDF]
, 2012 In this paper, a periodicity analysis of the radio light curves of the blazar NRAO 530 at 14.5, 8.0, and 4.8 GHz is presented employing an improved Phase Dispersion Minimization (PDM) technique.
An, Tao +4 more
core +2 more sources
Microlensing in the double quasar SBS1520+530 [PDF]
Astronomy & Astrophysics, 2005 We present the results of a monitoring campaign of the double quasar SBS1520+530 at Maidanak observatory from April 2003 to August 2004. We obtained light curves in V and R filters that show small-amplitude \Delta m~0.1 mag intrinsic variations of the ...
Alard +28 more
core +4 more sources
A Novel Mechanism of Cyclooxygenase-2 Inhibition Involving Interactions with Ser-530 and Tyr-385 [PDF]
Journal of Biological Chemistry, 2003 A variety of drugs inhibit the conversion of arachidonic acid to prostaglandin G2 by the cyclooxygenase (COX) activity of prostaglandin endoperoxide synthases.
Scott W. Rowlinson +8 more
openalex +2 more sources
Committee opinion no. 530: access to postpartum sterilization.
Obstetrics & Gynecology, 2012 Postpartum tubal sterilization is one of the safest and most effective methods of contraception. Women who desire this type of sterilization typically undergo thorough counseling and informed consent during prenatal care and reiterate their desire for postpartum sterilization at the time of their hospital admission.
semanticscholar +4 more sources
Post midnight spread-F occurrence over Waltair (17.7° N, 83.3° E) during low and ascending phases of solar activity [PDF]
Annales Geophysicae, 2003 A study carried out on the occurrence of post midnight spread-F events at a low-latitude station, Waltair (17.7° N, 83.3° E), India revealed that its occurrence is maximum in the summer solstice months of the low solar activity period and decreases
K. Niranjan +5 more
doaj +1 more source
Characterization of new microsatellite markers from sugarcane (Saccharum officinarum) transcriptome
The Indian Journal of Agricultural Sciences, 2020 Microsatellites, or simple sequence repeats (SSR), developed by expressed sequence tag (EST) databases is an economical and efficient tools that can be used to perform genetic investigations at a functional level.
Yijing Gao +12 more
doaj +1 more source
Subducted lithosphere or 530 km discontinuity? [PDF]
Geophysical Research Letters, 1998 Tomographic images of the mantle west of Japan and south Kuril islands suggest that in this region the subducted lithospheric slabs instead of penetrating the lower mantle, lie flat on top of it [van der Hilst et al., 1991; Fukao et al., 1992]. To test these models with independent data and techniques, we analyse the slowness of the P arrivals of Kuril‐
Oreshin, S. +3 more
openaire +4 more sources