Results 21 to 30 of about 390,667 (199)

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

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

Efeito da luz e da quebra de dormência na germinação de sementes de espécies de plantas daninhas Effect of light and dormancy break on weed species seed germination

open access: yesPlanta Daninha, 2007
Objetivou-se com este trabalho verificar a quebra de dormência, utilizando ácido sulfúrico (H2SO4) e escarificação mecânica, e o efeito da luz na germinação das espécies Euphorbia heterophylla, Ipomoea nil, Sida glaziovii e Brachiaria plantaginea.
F.L. Salvador   +4 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

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

Plant biometric characterization and leaf micromorphometry of Talinum triangulare (Jacq.) Willd cultivated under shade

open access: yesRevista Ceres
Talinum triangulare (Jacq.) Willd, known as Ceylon spinach, Surinam purslane, or waterleaf, is cultivated for medicinal and food purposes. Among environmental factors, light is an important regulator of primary production, contributing to plant growth ...
Ellen Carla Francisca Alexandre   +4 more
doaj   +1 more source

Germinação de sementes de Conyza canadensis e Conyza bonariensis em diferentes condições de temperatura e luminosidade Germination of Conyza canadensis and Conyza bonariensis seeds under different conditions of temperature and light

open access: yesPlanta Daninha, 2011
A buva (Conyza canadensis e C. bonariensis) é uma planta daninha de importância crescente no Brasil. Essas espécies ocorrem em diversas regiões do mundo, sendo importantes infestantes de culturas perenes e anuais sob sistema de semeadura direta, cultivo ...
O.M. Yamashita, S.C. Guimarães
doaj   +1 more source

The Protostellar Luminosity Function

open access: yes, 2011
The protostellar luminosity function (PLF) is the present-day luminosity function of the protostars in a region of star formation. It is determined using the protostellar mass function (PMF) in combination with a stellar evolutionary model that provides ...
Andre   +43 more
core   +1 more source

How cutting types and shading levels influence the vegetative propagation of Pereskia aculeata?

open access: yesBrazilian Journal of Biology, 2023
Information from Pereskia aculeata Miller (Cactaceae) responses regarding the portion of the stem cuttings branch parental plants and the shading level need to be investigated in order to establish techniques for their producing seedlings.
C. C. Santos   +7 more
doaj   +1 more source

The LUCID Detector for LHC Run-2

open access: yesUniverse, 2019
LUCID (LUminosity Cerenkov Integrating Detector) is the main luminosity monitor of the ATLAS (A Toroidal LHC Apparatus) experiment at the Large Hadron Collider (LHC) and in particular is the only one capable of providing bunch-by-bunch luminosity ...
Carla Sbarra
doaj   +1 more source

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