Results 31 to 40 of about 693,653 (389)
COSMOLOGY IN ISLAM, CONSTRUCTING ISLAMIZATION OF NATURE SCIENCE
Cosmology is one of the philosophical and scientific objects that become attention in Greek philosophers, especially Aristotle. However, with the times, this cosmology was found in The Qur’an, exactly in the concept of the sky and earth creation which ...
Muhammad Fiqih Cholidi, Safiya Fadlulah
doaj +1 more source
Backreaction in Cosmology [PDF]
In this review, we investigate the question of backreaction in different approaches to cosmological perturbation theory, and with a special focus on quantum theoretical aspects. By backreaction we refer here to the effects of matter field or cosmological inhomogeneities on the homogeneous dynamical background degrees of freedom of cosmology.
S. Schander, S. Schander, T. Thiemann
openaire +7 more sources
In the approach of Causal Dynamical Triangulations (CDT), quantum gravity is obtained as a scaling limit of a non-perturbative path integral over space-times whose causal structure plays a crucial role in the construction. After some general considerations about the relation between quantum gravity and cosmology, we examine which aspects of CDT are ...
Glaser, L., Loll, R., Loll, R.
openaire +2 more sources
Decolonisation and anti‐racism: Challenges and opportunities for (teacher) education
Abstract In the past two decades, we have seen a renewed interest in decolonisation. A proliferation of literature produced on the topic, the establishment of journals on decolonisation, student protests such as the #RhodesMustFall campaign at universities in South Africa and Oxford University in Britain, French President Emmanuel Macron's call for the
Lesley Le Grange
wiley +1 more source
Observational constraints on the fractal cosmology
In this paper, we explore a fractal model of the universe proposed by Calcagni (J High Energy Phys 03:120, 2010) for a power-counting renormalizable field theory living in a fractal spacetime.
Mahnaz Asghari, Ahmad Sheykhi
doaj +1 more source
The Atacama Cosmology Telescope: a measurement of the Cosmic Microwave Background power spectra at 98 and 150 GHz [PDF]
We present the temperature and polarization angular power spectra of the CMB measured by the Atacama Cosmology Telescope (ACT) from 5400 deg2 of the 2013–2016 survey, which covers >15000 deg2 at 98 and 150 GHz.
Steve K. Choi+138 more
semanticscholar +1 more source
Long range interactions in cosmology: implications for neutrinos [PDF]
Cosmology is well suited to study the effects of long range interactions due to the large densities in the early Universe. In this article, we explore how the energy density and equation of state of a fermion system diverge from the commonly assumed ...
I. Esteban, J. Salvado
semanticscholar +1 more source
33 pages, 4 ...
Kehagias, A., Riotto, A.
openaire +4 more sources
We shall discuss cosmological models in extended theories of gravitation. We shall define a surface, called the model surface, in the space of observable parameters which characterises families of theories. We also show how this surface can be used to compare with observations.
CAPOZZIELLO, SALVATORE+4 more
openaire +5 more sources
Light trajectory and shadow shape in the rotating naked singularity
In this paper, we investigate the light trajectories and shadow properties in the rotating version of null naked singularity (NNS) spacetime which is derived using the Newman–Janis algorithm without complexification method.
Vishva Patel+4 more
doaj +1 more source