We develop a simple model of planetary formation, focusing our attention on those planets with masses less than 10M⊕ and studying particularly the primordial spin parameters of planets resulting from the accretion of ...

Petrographic analysis and geochemical characterization studies were carried out on vitreous dacite and/or rhyodacite artefacts from Formative period archaeological sites in the upper Salado River Basin in the Atacama Desert, ...

Protoplanetary discs are thought to be truncated at orbital periods of around 10 d. Therefore, the origin of rocky short-period planets with P < 10 d is a puzzle. We propose that many of these planets may form through the ...

The microevolution of the archaic populations from Chile's northern coast and its morphological contribution to Formative period groups was studied. The sample comprised 181 individuals belonging to two Archaic (Morro-Uhle ...

This study aims at analysing the Formation of Educational Professionals Policies of Basic Education in Brazil, in the semi-formation context. We assume that the teachers formation policies were based on the mass teachers ...

Unique among its kind in the Atacama Desert, the temple of Tulan-54 is a key site of the Early Formative period. Evidence of ceremonies and ritual activities, such as feasts and offerings, demonstrates that Tulan-54 was ...