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Abstract The exploration of the surrounding world and the universe is an important theme in the legacy of humankind. The detection of gravitational waves is adding a new dimension to this grand effort. What are the funda...

We investigate five different models for the dark matter (DM) halo bias, that is, the ratio of the fluctuations of mass tracers to those of the underlying mass, by comparing their cosmological evolution using optical qua...

Aims. We investigate whether viscous cold dark matter (vCDM) in a Λ-dominated Friedmann-Lemaître-Robertson-Walker (FLRW) universe can alleviate the Hubble tension, while satisfying thermodynamic constraints. Here, we e...

Precise measurements of Type Ia supernovae (SNe Ia) at low redshifts ( z ) serve as one of the most viable keys to unlocking our understanding of cosmic expansion, isotropy, and growth of structure. The Dark Energy Bedr...

We use cosmological hydrodynamical simulations including star formation and metal enrichment to study the evolution of the chemical properties of galaxy-like objects at high redshift in the range 0.25 < z < 2.35 in a hie...

We investigate whether a dynamical wormhole could survive in a universe that undergoes a cosmological bounce. First, the conditions under which a wormhole could persist from a contracting to an expanding phase of the cos...

Experiments on the relative merits and demerits of slotted wingtips mimicking a bird’s primary feathers have been performed. The real emargination length of feather tips, their flexibility and curved shapes during crui...

We propose an extended General Relativistic formalism with boundary terms included, that describes the dynamics of quantum spinor fields, which can take intermediate values, named (3 + 1) -anyons. In the approach here wo...

In cosmological first-order phase transitions, the microscopic interaction of the phase transition fronts with non-equilibrium plasma particles manifests itself macroscopically as friction forces. In general, it is a non...

Black holes with a cosmological origin, the so-called primordial black holes, might have formed in the early Universe from different mechanisms. In this work, we investigate the cosmic evolution of the early Universe ins...

This paper is an attempt to summarize the effect of wing tip devices employed by birds, as well as aeronautical engineers in the past to improve the performance characteristics of aircraft. The focus is on reduction of t...

The Day of Atonement in Leviticus 16 occupies a central position in the Israelite cultic system as a means of restoring the relationship between YHWH and His people. One of the most problematic elements in this ritual is...

We reconstruct the late-time expansion history of the Universe in a fully model-independent manner. By combining observations from cosmic chronometers (CCs), the Dark Energy Spectroscopic Instrument (DESI) baryon acousti...

I argue for a four dimensional, non-dynamical view of space-time, where becoming is not an intrinsic property of reality. This view has many features in common with the Parmenidean conception of the universe. I discuss s...

We analyze the infrared behavior of the two and four-point functions for the massless O(N) model in Lorentzian de Sitter spacetime, using the 1/N expansion. Our approach is based in the study of the Schwinger-Dyson equat...

Strong gravitational lenses serve as powerful probes for cosmology and the mass distribution of galaxies. However, identifying these rare systems is often hindered by inaccurate localization and confusion with morphologi...

The study deals with pilgrimages to Esquipulas, Guatemala, and patterns of miracle in terms of their perception by the pilgrims reaching this prominent religious hub of Central America. Two key pilgrimage discourses are ...

Properties of massive galaxy clusters, such as mass abundance and concentration, are sensitive to cosmology, making cluster statistics a powerful tool for cosmological studies. However, favoring a more simplified, spheri...

En el marco del Convenio entre el CONICET, el CEHP-DADU-UNDAV y el Ministerio de Cultura de Santa Fe (para la puesta en valor del archivo personal de Fernando Birri), se inició una reflexión en torno a las obras emblem...

Based on ethnographic research carried out in Codó, in the interior of Maranhão, this article seeks to answer how religious entities relate to the city. To achieve this goal, the field of Afro-Brazilian religion studie...

Abstract In this study, we explore the reheating phase that follows tachyon inflation within the framework of holographic induced gravity (H-IG). Analytical relations for the reheating temperature $$T_{re}$$ T re and the...

This paper presents a resume of results obtained recently in the context of cosmology. We see how systems with escalating fields that can resolve the riddle of dark matter also can have a non linear comportment of the s...

We propose to generalize Bekenstein model for the time variation of the fine structure "constant" αem to QCD strong coupling constant αS. We find that, except for a “fine tuned” choice of the free parameters, the e...