Results 1 to 10 of about 506,719 (342)

COLDz: Shape of the CO Luminosity Function at High Redshift and the Cold Gas History of the Universe [PDF]

open access: yesAstrophysical Journal, 2018
We report the first detailed measurement of the shape of the CO luminosity function at high redshift, based on >320 hr of the NSF’s Karl G. Jansky Very Large Array (VLA) observations over an area of ∼60 arcmin2 taken as part of the CO Luminosity Density ...
D. Riechers   +34 more
semanticscholar   +1 more source

The influence of the photoperiod on productive performance and survival of piabanha-of-Pardo (Brycon vonoi ), hatchery

open access: yesCiência Rural, 2018
: This research aimed to verify the influence of the photoperiod on the performance and survival piabanha-of-Pardo (Brycon vonoi) larvae. Piabanha-of-Pardo larvae 24 hours post-hatch, with body weight of 2.44 ± 0.02mg, and total length of 7.82 ± 0.46mm ...
Marcelo Mattos Pedreira   +2 more
doaj   +1 more source

Luminosity and Contrast Adjustment of Fundus Images with Reflectance

open access: yesApplied Sciences, 2023
This paper presents an automatic correction method for luminosity and contrast variation in fundus images. Sixty retina or fundus images with different levels of reflectance are selected from online databases and used to assess the effectiveness of the ...
Mofleh Hannuf AlRowaily   +2 more
doaj   +1 more source

Evolution of Galaxy Luminosity Function and Luminosity Function by Density Environment at 0.03 [PDF]

open access: yes, 2006
Using galaxy sample observed by the BATC large-field multi-color sky survey and galaxy data of SDSS in the overlapped fields, we study the dependence of the restframe $r$-band galaxy luminosity function on redshift and on large-scale environment.
Bolzonella M.   +10 more
core   +2 more sources

Effects of light intensity on the distribution of anthocyanins in Kalanchoe brasiliensis Camb. and Kalanchoe pinnata (Lamk.) Pers

open access: yesAnais da Academia Brasileira de Ciências, 2012
This paper compares two medicinal species of Kalanchoe, which are often used interchangeably by the population, regarding the distribution of anthocyanins under the influence of four luminosity levels for 6 months.
Bruna P. Cruz   +4 more
doaj   +1 more source

Full-data Results of Hubble Frontier Fields: UV Luminosity Functions at z ∼ 6–10 and a Consistent Picture of Cosmic Reionization [PDF]

open access: yes, 2017
We present UV luminosity functions of dropout galaxies at with the complete Hubble Frontier Fields data. We obtain a catalog of ∼450 dropout-galaxy candidates (350, 66, and 40 at , 8, and 9, respectively), with UV absolute magnitudes that reach mag, ∼2 ...
M. Ishigaki   +5 more
semanticscholar   +1 more source

Chemical and agronomic development of Kalanchoe brasiliensis Camb. and Kalanchoe pinnata (Lamk.) Pers under light and temperature levels

open access: yesAnais da Academia Brasileira de Ciências, 2011
This study compares the development of Kalanchoe brasiliensis and Kalanchoe pinnata, which are medicinal species known as "saião" and "folha da fortuna" that are used interchangeably by the population for medicinal purposes.
Bruna P. Cruz   +3 more
doaj   +1 more source

Nitrogen supply and shading affect morphology and composition of the essential oil in marigold (Tagetes erecta L.)

open access: yesFolia Horticulturae, 2020
Terrestrial plants are constantly exposed to multiple environmental signals that influence their metabolism. Among these signals, nitrogen (N) nutrition and light affect importantly diverse metabolic and physiological processes. Herewith the effects of N
Peralta-Sánchez María G.   +5 more
doaj   +1 more source

UV LUMINOSITY FUNCTIONS AT REDSHIFTS z ∼ 4 TO z ∼ 10: 10,000 GALAXIES FROM HST LEGACY FIELDS [PDF]

open access: yes, 2014
The remarkable Hubble Space Telescope (HST) data sets from the CANDELS, HUDF09, HUDF12, ERS, and BoRG/HIPPIES programs have allowed us to map the evolution of the rest-frame UV luminosity function (LF) from z ∼ 10 ?> to z ∼ 4 ?> .
R. Bouwens   +17 more
semanticscholar   +1 more source

Gravitational-wave luminosity distance in modified gravity theories [PDF]

open access: yesPhysical Review D, 2017
In modified gravity theories, the luminosity distance for gravitational waves (GWs) is in general different from that for electromagnetic signals. This opens the possibility of model-independent tests of GR, by comparing the results from standard candles
E. Belgacem   +3 more
semanticscholar   +1 more source

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