Results 31 to 40 of about 347,393 (310)

Direct detection of a break in the teraelectronvolt cosmic-ray spectrum of electrons and positrons [PDF]

open access: yesNature, 2017
High-energy cosmic-ray electrons and positrons (CREs), which lose energy quickly during their propagation, provide a probe of Galactic high-energy processes and may enable the observation of phenomena such as dark-matter particle annihilation or decay ...
G. Ambrosi   +157 more
semanticscholar   +1 more source

Development and preliminary validation of a machine learning system for thyroid dysfunction diagnosis based on routine laboratory tests

open access: yesCommunications Medicine, 2022
Hu et al. develop a machine learning approach for diagnosis of thyroid disorders based on routine clinical laboratory measurements. The approach is tested on data from multiple institutions and can distinguish patients with hyper- or hypothyroidism from ...
Min Hu   +11 more
doaj   +1 more source

Statistical validation of ionospheric electron density profiles retrievals from GOES geosynchronous satellites

open access: yesJournal of Space Weather and Space Climate, 2023
In this paper, we discuss a novel retrieval of ionospheric electron density profiles using the Radio Occultation (RO) technique applied to measurements captured by the Global Positioning System (GPS) receivers onboard two Geostationary Operational ...
Zakharenkova Irina   +8 more
doaj   +1 more source

The Cosmic Linear Anisotropy Solving System (CLASS). Part II: Approximation schemes [PDF]

open access: yes, 2011
Boltzmann codes are used extensively by several groups for constraining cosmological parameters with Cosmic Microwave Background and Large Scale Structure data.
D. Blas, J. Lesgourgues, Thomas Tram
semanticscholar   +1 more source

COSMIC‐2 Radio Occultation Constellation: First Results

open access: yesGeophysical Research Letters, 2020
Initial data from the Formosa Satellite‐7/Constellation Observing System for Meteorology Ionosphere and Climate (FORMOSAT‐7/COSMIC‐2, hereafter C2), a recently launched equatorial constellation of six satellites carrying advanced radio occultation ...
W.S. Schreiner   +14 more
doaj   +1 more source

Error analysis of Abel retrieved electron density profiles from radio occultation measurements [PDF]

open access: yesAnnales Geophysicae, 2010
This letter reports for the first time the simulated error distribution of radio occultation (RO) electron density profiles (EDPs) from the Abel inversion in a systematic way.
X. Yue   +7 more
doaj   +1 more source

Design and operation of a 1500-m laser strainmeter installed at an underground site in Kamioka, Japan

open access: yesEarth, Planets and Space, 2017
A laser strainmeter with a 1500-m baseline was constructed at an underground site in Kamioka, Gifu Prefecture, Japan, and has been operating since August 2016. The laser interferometer measures the change in distance between two retroreflectors housed in
Akito Araya   +8 more
doaj   +1 more source

A 6% measurement of the Hubble parameter at z∼0.45: direct evidence of the epoch of cosmic re-acceleration [PDF]

open access: yes, 2016
Deriving the expansion history of the Universe is a major goal of modern cosmology. To date, the most accurate measurements have been obtained with Type Ia Supernovae (SNe) and Baryon Acoustic Oscillations (BAO), providing evidence for the existence of a
Michele Moresco   +9 more
semanticscholar   +1 more source

Eppur è piatto? The Cosmic Chronometers Take on Spatial Curvature and Cosmic Concordance [PDF]

open access: yes, 2020
The question of whether cosmic microwave background (CMB) temperature and polarization data from Planck favor a spatially closed universe with curvature parameter ΩK < 0 has been the subject of recent intense discussions.
S. Vagnozzi, A. Loeb, Michele Moresco
semanticscholar   +1 more source

Leading cluster approach to simulations of hadron collisions with GHOST generator [PDF]

open access: yesEPJ Web of Conferences, 2019
The model HDPM of CORSIKA has been updated and developed on the base of the recent measurements by ALICE, CMS, TOTEM, LHCb, LHCf... The new model, GHOST, involving a four-source production reproduces correctly the pseudo-rapidity distributions of charged
Capdevielle Jean-Noël   +3 more
doaj   +1 more source

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