Results 91 to 100 of about 1,140 (166)

Características de qualidade óssea e desempenho de avestruzes [PDF]

open access: yesRevista Brasileira de Ciência Avícola, 2007
Paz, Ibiara Correia de Lima Almeida   +6 more
openaire   +6 more sources

The Quasar Proximity Effect as an Alternative Probe of Quasar Pair Distances

open access: yesThe Astrophysical Journal Letters
Recently discovered quasar pairs at high redshifts ( z  ≳ 5) are likely precursors to supermassive black hole mergers, providing a promising window to high-redshift quasar growth mechanisms.
Huanqing Chen   +2 more
doaj   +1 more source

Struthio camelus australis (avestruz de cuello azul) en cuativerio

open access: yes, 2010
Imagen en formato jpg. Sus dimensiones son 3 872 x 2 592 pixeles.Struthio camelus australis (avestruz de cuello azul) en cuativerio en el zoológico África Mía en Liberia, Guanacaste, Costa Rica.Universidad Estatal a Distancia de Costa ...
Rodríguez Chaparro, Héctor Osvaldo
core  

Cosmic Reionization On Computers: Biases and Uncertainties in the Measured Mean Free Path at the End Stage of Reionization

open access: yesThe Open Journal of Astrophysics
Recent observations and analyses of absorption in quasar spectra suggest a rapid drop in the mean free path (MFP) at the late stage of reionization at $z\sim6$.
Huanqing Chen   +2 more
doaj   +1 more source

Projeto de viabilidade da criação de avestruz : Cambé-PR

open access: yes, 2003
Orientador: Prof. Derli DossaMonografia (especialização) - Universidade Federal do Paraná, Setor de Ciências Agrárias, Curso de Especialização em AgronegócioInclui referênciasResumo: O objetivo deste trabalho é demonstrar através da elaboração de um ...
Bersi Filho, João Geraldo
core  

On the Physical Nature of Lyα Transmission Spikes in High-redshift Quasar Spectra

open access: yesThe Astrophysical Journal
We investigate Lyman-alpha (Ly α ) transmission spikes at 5.2 < z < 6.8 using synthetic quasar spectra from the “Cosmic Reionization on Computers” simulations.
Hanjue Zhu   +2 more
doaj   +1 more source

On the minimum number of radiation field parameters to specify gas cooling and heating functions

open access: yesThe Open Journal of Astrophysics
Fast and accurate approximations of gas cooling and heating functions are needed for hydrodynamic galaxy simulations. We use machine learning to analyze atomic gas cooling and heating functions in the presence of a generalized incident local radiation ...
David Robinson   +2 more
doaj   +1 more source

Estudo morfométrico do coração de avestruzes (Struthio camelus) [PDF]

open access: yesPubvet, 2011
Daniel Faustino Guimarães   +5 more
openaire   +1 more source

Estudio, análisis y propuesta gastronómica de la carne de avestruz en el Ecuador

open access: yes, 2009
Introducción. Los avestruces. Estudio de la carne de avestruz. Estudio de mercado. Propuesta gastronómica.
Brito Cabrera, Maria Fernanda
core  

Desarrollo de un método para desinfección de canales de avestruz, utilizando ácidos orgánicos [PDF]

open access: yes, 2011
Struthio Camelus, es el nombre científico destinada al Avestruz, es un animal de origen africano, se caracteriza por ser de clima cálido, la industrialización de la carne constituye una de las principales innovaciones en la empresa donde se desarrolló el
Marín Morocho, Karina Marisabel
core  

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