Results 21 to 30 of about 397,167 (343)

Morphometry and Germination of Passovia pyrifolia, Struthanthus marginatus and Phoradendron mucronatum Diaspores [PDF]

open access: yesPlanta Daninha, 2018
: The goal of this work was to characterize morphometrically diaspores from three species of mistletoes (Passovia pyrifolia, Struthanthus marginatus e Phoradendron mucronatum), as well as to study its germination behavior according to temperature and ...
J.M.L. AZEVEDO   +4 more
doaj   +1 more source

Evidence for different accretion regimes in GRO J1008-57 [PDF]

open access: yes, 2017
We present a comprehensive spectral analysis of the BeXRB GRO J1008-57 over a luminosity range of three orders of magnitude using NuSTAR, Suzaku and RXTE data. We find significant evolution of the spectral parameters with luminosity.
Ballhausen, Ralf   +8 more
core   +3 more sources

The bolometric luminosities of stars [PDF]

open access: yesSymposium - International Astronomical Union, 1997
The total energy emitted by a star is one of its basic parameters. It is also one of the most difficult to determine, requiring space-based as well as ground-based measurements of the absolute flux from stars. We review the current status of these observations in the ultraviolet, visible, and near infrared, and estimate the uncertainties of the ...
R. C. Bless, J. W. Percival
openaire   +1 more source

The Relationship between Slope and Luminosity [PDF]

open access: yesKirkuk Journal of Science, 2010
In this study, a sample of galaxies has been adopted. It consists of 112 elliptical galaxies, among them were 56 dwarf elliptical galaxies, which belong to virgo cluster, 37 normal galaxies and 19 bright galaxies. Also, surface brightness profiles fitted
Mohsen H. Ali AL-Khafajy
doaj   +1 more source

Luminosity function of GRBs [PDF]

open access: yesAstronomy & Astrophysics, 2001
We attempt to constrain the luminosity function of Gamma Ray Bursts (GRBs) from the observed number count--flux relation and the afterglow redshift data. We assume three classes of luminosity functions for our analysis: (a) Log-normal distribution, (b) Schechter distribution, and (c) Scale-free distribution. We assume several models of the evolution of
Sethi, Shiv, Bhargavi, S. G.
openaire   +2 more sources

0224 "The Image of Adam’s Glory"

open access: yesRIHA Journal, 2019
The imagery of the "radiant body" and "luminous garment" occurs frequently in early Christian references to the Edenic state of Adam and its partial reinstatement by Moses, Jesus, and numerous saintly (usually ascetic) figures.
Bogdan G. Bucur, Vladimir Ivanovici
doaj   +1 more source

Effect of potassium and seed density on potato production Solanum tuberosum Group Phureja var. Criolla Guaneña

open access: yesTemas Agrarios, 2018
Potassium is a macronutrient that can improve the growth of crops. A randomized complete block design was used to evaluate the influence of four planting densities (50,000, 41,667, 33,333, 31,250 plants ha-1) and three potassium levels (300, 250, 200 kg ...
Amanda Silva Parra   +2 more
doaj   +1 more source

Influência do sombreamento sobre os teores de carboidratos e fenóis em estacas semilenhosas de araçazeiro Influence of shading on the carbohydrates and phenols in cattley guava cutting

open access: yesPesquisa Agropecuária Brasileira, 1999
O presente trabalho teve por objetivo avaliar a influência do sombreamento sobre os teores de carboidratos não-estruturais e fenóis solúveis totais em folhas e caules de estacas de plantas matrizes de araçazeiro (Psidium cattleyanum Sabine).
João Guilherme Casagrande Junior   +4 more
doaj   +1 more source

A Novel Activated Charcoal Based Wash to Make Muga Silk Shiny

open access: yesJournal of Natural Fibers, 2023
Lustrous golden muga silk is endemic to the northeast part of India. Being pricey, the washing method plays a vital role in retaining the shininess of silk without compromising the fiber’s quality.
Minhaz Ahmed, Jyoti Prasad Saikia
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

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