Results 31 to 40 of about 397,167 (343)

K-corrections: an Examination of their Contribution to the Uncertainty of Luminosity Measurements

open access: yesThe Open Journal of Astrophysics, 2016
In this paper we provide formulae that can be used to determine the uncertainty contributed to a measurement by a K-correction and, thus, valuable information about which flux measurement will provide the most accurate K-corrected luminosity. All of this
Sean Lake, Ned Wright
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

The Empirical Mass-Luminosity Relation for Low Mass Stars

open access: yes, 2007
This work is devoted to improving empirical mass-luminosity relations and mass-metallicity-luminosity relation for low mass stars. For these stars, observational data in the mass-luminosity plane or the mass-metallicity-luminosity space subject to non ...
A. Alonso   +28 more
core   +2 more sources

Luminosity Spectrum Reconstruction at Linear Colliders [PDF]

open access: yes, 2013
A good knowledge of the luminosity spectrum is mandatory for many measurements at future e+e- colliders. As the beam-parameters determining the luminosity spectrum cannot be measured precisely, the luminosity spectrum has to be measured through a gauge ...
Poss, Stéphane, Sailer, André
core   +2 more sources

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

Luminosity Measurements at the LHC at CERN Using Medipix, Timepix and Timepix3 Devices

open access: yesPhysics, 2021
The precise determination of the luminosity is essential for many analyses in physics based on the data from the particle accelerator Large Hadron Collider (LHC) at CERN. There are different types of detectors used for the luminosity measurements.
André Sopczak
doaj   +1 more source

The Stars of Low Luminosity [PDF]

open access: yesProceedings of the National Academy of Sciences, 1952
A search has been made among the faint stars with large proper motion found on the Palomar Survey plates for objects that, statistically—judging from their magnitude, color, and proper motion—would appear to be fainter than one ten-thousandth of the sun's luminosity.
openaire   +2 more sources

Ecological anatomy of Eugenia punicifolia (Kunth) DC. (MYRTACEAE) in the restinga region,state of Ceará [PDF]

open access: yesRevista Brasileira de Fruticultura, 2019
The species Eugenia punicifolia (Kunth) DC. (myrtle) occurs in the coastal region of the state of Ceará and has ecological and medicinal importance. This study aimed to characterize the leaf anatomy of myrtle (E. punicifolia) in the rainy and dry seasons,
Viviane de Oliveira Thomaz Lemos   +3 more
doaj   +1 more source

Influence of Mineral Particle Films and Biomaterials on Guava Fruits and Implications for the Oviposition of Anastrepha obliqua (Macquart) (Diptera: Tephritidae)

open access: yesInsects, 2021
Anastrepha obliqua (Macquart, 1835) is an important pest of tropical fruits, especially Anacardiaceae and Myrtaceae, in the Americas. The objective of this study was to evaluate the influence of mineral films and biomaterials on the coloring of guava ...
Daniela Ribeiro da Costa   +7 more
doaj   +1 more source

Practical Knowledge and Luminosity [PDF]

open access: yes, 2019
Many philosophers hold that if an agent acts intentionally, she must know what she is doing. Although the scholarly consensus for many years was to reject the thesis in light of presumed counterexamples by Donald Davidson, several scholars have recently ...
Glasscock, Juan S. Piñeros
core  

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