Results 31 to 40 of about 76,673 (303)

Ultrahigh-energy neutrino follow-up of Gravitational Wave events GW150914 and GW151226 with the Pierre Auger Observatory [PDF]

open access: yes, 2016
On September 14, 2015 the Advanced LIGO detectors observed their first gravitational-wave (GW) transient GW150914. This was followed by a second GW event observed on December 26, 2015.
Aab, A.   +412 more
core   +5 more sources

Historical Geomagnetic Declination in Mainland Spain Derived from Topographic Fieldwork Records (1871–1940)

open access: yesGeosciences
In 1870, the newly created Instituto Geográfico of Spain, the precursor of the current Instituto Geográfico Nacional (IGN), began to carry out work for the preparation of the National Topographic Map of Spain, a major project that would take almost 100 ...
Jose Manuel Tordesillas   +5 more
doaj   +1 more source

Improvement of Hipparcos proper motions in declination [PDF]

open access: yesSerbian Astronomical Journal, 2006
More than a decade elapsed after the HIPPARCOS ESA mission (ESA 1997) observations have been collected. This first astronomical satellite mission was less than 4 years long so that 1991.25 is the epoch of the HIPPARCOS Catalogue. Many other projects have
Damljanović Goran M.   +2 more
doaj   +1 more source

Astrometric Positions and Proper Motions of 19 Radio Stars

open access: yes, 2003
We have used the Very Large Array, linked with the Pie Town Very Long Baseline Array antenna, to determine astrometric positions of 19 radio stars in the International Celestial Reference Frame (ICRF). The positions of these stars were directly linked to
A. L. Fey   +10 more
core   +1 more source

A possible effect of atmospheric circulation in the daily variation of the earth's magnetic field [PDF]

open access: yes, 1963
The daily variation of the horizontal intensity of the earth's magnetic field at Honolulu exhibits seasonal features that are not related in a simple way to solar declination.
Wulf, Oliver Reynolds
core   +1 more source

Decline increasing: normality declining [PDF]

open access: yesPhysics World, 1998
Information is the currency of scientific pursuit, and its immediate access is a presumed universal right to today's students. No longer must the information-seeker spend hours, days and even weeks trawling through Current Contents, as all information is now freely available at the click of a mouse.
Eason, Robert, Nash, Chris
openaire   +2 more sources

CALCULATE METHOD OF THE TWILIGHT SKY BRIGHTNESS IN THE SOLAR VERTICAL, STIPULATED BY A MULTIPLE SCATTERING OF A SUNLIGHT

open access: yesOdessa Astronomical Publications, 2017
Use of a twilight sounding method of the Earth's atmosphere with the aim to reveal aerosols inflow to the upper and medial atmosphere needs a method of separation twilight sky brightness to the brightness of primary and secondary twilight.
L. S. Shakun   +2 more
doaj   +1 more source

Astrometry of the main satellites of Uranus: 18 years of observations

open access: yes, 2015
We determine accurate positions of the main satellites of Uranus: Miranda, Ariel, Umbriel, Titania, and Oberon. Positions of Uranus, as derived from those of these satellites, are also determined. The observational period spans from 1992 to 2011.
Andrei, A. H.   +9 more
core   +3 more sources

Measurement experiences with FluxSet digital D/I station [PDF]

open access: yesGeoscientific Instrumentation, Methods and Data Systems, 2017
Geomagnetic observatories use classical theodolites equipped with single-axis flux-gate magnetometers known as declination–inclination magnetometers (DIM) to determine absolute values of declination and inclination angles.
L. Hegymegi   +3 more
doaj   +1 more source

Clinical Insights Into Hypercalcemia of Malignancy in Childhood

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Hypercalcemia of malignancy (HCM) is a rare but life‐threatening metabolic emergency in children that occurs in less than 1% of pediatric cancer cases, with a reported incidence ranging from 0.4% to 1.0% across different studies. While it is observed in 10%–20% of adult malignancies, pediatric HCM remains relatively uncommon.
Hüseyin Anıl Korkmaz
wiley   +1 more source

Home - About - Disclaimer - Privacy