In this thesis, we show how future cosmological observations can provide us access to unveil the mechanism responsible for the origin of the structure in our universe. The primordial perturbations sourced by quantum vacuum ...

Future cosmic microwave background polarization experiments will search for evidence of primordial tensor modes at large angular scales, in the multipole range 4≤≤50. Because in that range there is some mild evidence of ...

Primordial germ cells (PGC) are the precursors of oocytes and spermatocytes. They are characterized by being the only ones capable of accurately retaining pluripotent developmental ability after gastrulation. These cells ...

We study the impact of the viscous effects of the primordial plasma on the evolution of the primordial gravitational waves (pGW) spectrum from Inflation until today, considering a self-consistent interaction that incorporates ...

The standard model of cosmology has some problems in order to describe the early stages of the universe. The theory of Cosmic Inflation, a phase of accelerated exponential expansion, was conceived to solve the previous ...

We discuss the possible existence of features in both the primordial power spectrum and bispectrum generated during a stage of single eld cosmic in ation. We argue that there are two main classes of features: those ...

It was recently shown that a large value of the tensor to scalar ratio r implies a constraint on the minimum value of the sound speed c(s) of primordial curvature perturbations during inflation that is stronger than current ...

Ovarian tissue transplantation could be a valuable technique for the preservation of endangered animals. The domestic cat affords an adequate experimental model for studies aimed at wild felids due to its phylogenetic ...