Results 21 to 30 of about 4,401,033 (292)

Color Separation of Galaxy Types in the Sloan Digital Sky Survey Imaging Data [PDF]

open access: yes, 2001
We study the optical colors of 147,920 galaxies brighter than g* = 21, observed in five bands by the Sloan Digital Sky Survey (SDSS) over ∼100 deg2 of high Galactic latitude sky along the celestial equator.
I. Strateva   +28 more
semanticscholar   +1 more source

An unknown work of sculptor Juan de Astorga in the parish church of Umbrete [PDF]

open access: yes, 2016
En el presente trabajo nos proponemos realizar una nueva aportación al catálogo escultórico de Juan de Astorga, una obra existente en la iglesia parroquial de Umbrete, realizada por encargo de Francisco Javier Cienfuegos, cardenal arzobispo de Sevilla.In
Amores Martínez, Francisco
core   +2 more sources

THE MULTI-OBJECT, FIBER-FED SPECTROGRAPHS FOR THE SLOAN DIGITAL SKY SURVEY AND THE BARYON OSCILLATION SPECTROSCOPIC SURVEY [PDF]

open access: yes, 2012
We present the design and performance of the multi-object fiber spectrographs for the Sloan Digital Sky Survey (SDSS) and their upgrade for the Baryon Oscillation Spectroscopic Survey (BOSS).
S. Smee   +63 more
semanticscholar   +1 more source

Dos cartas de Pierre Denis a Francisco Javier Vergara y Velasco, 1910

open access: yesTerra Brasilis, 2018
En 1910, con el fin de conseguir materiales para la elaboración del volumen sobre América del Sur para la Geografía Universal de Vidal de la Blache, el joven geógrafo francés Pierre Denis (1883-1951) entra en contacto con su colega colombiano Francisco ...
David Ramírez Palacios
doaj   +1 more source

Genomewide Association Study of Severe Covid-19 with Respiratory Failure

open access: yesNew England Journal of Medicine, 2020
Background There is considerable variation in disease behavior among patients infected with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the virus that causes coronavirus disease 2019 (Covid-19). Genomewide association analysis may allow
D. Ellinghaus   +145 more
semanticscholar   +1 more source

A unified vegetation index for quantifying the terrestrial biosphere

open access: yesScience Advances, 2021
Machine learning generalizes vegetation indices to better quantify the terrestrial biosphere. Empirical vegetation indices derived from spectral reflectance data are widely used in remote sensing of the biosphere, as they represent robust proxies for ...
Gustau Camps-Valls   +13 more
semanticscholar   +1 more source

The Three-Dimensional Power Spectrum of Galaxies from the Sloan Digital Sky Survey [PDF]

open access: yes, 2003
We measure the large-scale real-space power spectrum P(k) by using a sample of 205,443 galaxies from the Sloan Digital Sky Survey, covering 2417 effective square degrees with mean redshift z ≈ 0.1.
M. Tegmark   +64 more
semanticscholar   +1 more source

Reyes, espadas, cuervos y dragones. Estudio del fenómeno televisivo Juego de Tronos

open access: yesComunicación, 2022
Javier Lozano Delmar, Irene Raya Bravo y Francisco J.
Esther Simancas González
doaj   +1 more source

The EC-Earth3 Earth system model for the Coupled Model Intercomparison Project 6

open access: yesGeoscientific Model Development, 2022
. The Earth system model EC-Earth3 for contributions to CMIP6 is documented here, with its flexible coupling framework, major model configurations, a methodology for ensuring the simulations are comparable across different high-performance computing (HPC)
R. Döscher   +60 more
semanticscholar   +1 more source

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