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Expõem-se os fundamentos conceituais da contribuição de Niklas Luhmann à teoria social, segundo a qual a sociedade deve ser entendida como uma rede de operações e eventos constituída e mantida pela comunicação. ...

En su ensayo sobre literatura y enfermedad, Roberto Bolaño construye una tríada íntima de experiencia que nos guía a través de las motivaciones fundamentales que hay detrás de toda poesía y que está constituida c...

Los cielos del hemisferio sur están colmados de maravillas astronómicas que atraen tanto a aficionados como a profesionales de todo el mundo. Y, por supuesto, son el deleite de quienes vivimos debajo de ellos. La estre...

Context. Recent observational results have found a bend in the Tully-Fisher relation in such a way that low-mass systems lie below the linear relation described by more massive galaxies. Aims. We intend to investigate th...

Influencia de factores bióticos y abióticos sobre las comunidades de parásitos metazoos de un pez presa nativo: estudio en 28 lagos andino patagónicos. Galaxias maculatus (puyen chico) es una especie de pez presa que...

We analysed the evolution of the metallicity of the gas with the redshift for a sample of AGNs in a very wide redshift range (0 < z

The incorporation and trophic transfer of total and methyl mercury (THg, MeHg) were examined in three size classes of plankton (10–53, 53–200, and >200 μm size range) and a small planktivorous fish, Galaxias maculat...

This paper documents the seventeenth data release (DR17) from the Sloan Digital Sky Surveys; the fifth and final release from the fourth phase (SDSS-IV). DR17 contains the complete release of the Mapping Nearby Galaxies ...

We present the detection of an intermediate-mass, pre-main-sequence population embedded in the nebular filaments surrounding the 30 Doradus region in the Large Magellanic Cloud (LMC) using HST/NICMOS. In addition to four...

Conflicting evidence has been recently raised in order to use surface brightness profiles of dwarf galaxies as a distance indicator. In this paper we discuss in some detail the main error sources in profile fitting proce...