For this reason, dust models are often employed in cosmology as models of a toy universe, in which the dust particles are considered as highly idealized models of galaxies, clusters, or superclusters.
Nestes doentes, a deficiência de eritropoietina e a resposta diminuída das células progenitoras eritróides à eritropoietina endógena contribuem de maneira significativa para a anemia destes doentesWikiMatrix WikiMatrix