Results 111 to 120 of about 5,429,060 (314)

A magnetically induced quantum critical point in holography [PDF]

open access: yes, 2016
We investigate quantum critical points in a 2+1 dimensional gauge theory at finite chemical potential χ and magnetic field B. The gravity dual is based on 4D NN = 2 Fayet-Iliopoulos gauged supergravity and the solutions we consider — that are constructed
Papadoulaki, O.   +5 more
core   +1 more source

Un/Learning Adult Frames of Reference in Death Enquiries: Thinking~With a Picturebook, Philosophical Animism and Ontological Tact

open access: yesChildren &Society, EarlyView.
ABSTRACT Developmental psychology continues to shape how adults engage with children about death and dying. This influences whether children are included in rituals surrounding human and other‐than‐human bodies. Figurations of the innocent, immature and vulnerable child still dominate adult imaginaries of young children's understandings of mortality ...
Karin Murris   +2 more
wiley   +1 more source

Determining Evolution of Cosmological Constant, Gravitational Constant and Speed of Light Using Nonadiabatic Cosmological Model and LLR Findings

open access: yesGalaxies, 2019
We have shown that the Hubble constant H 0 embodies the information about the evolutionary nature of the cosmological constant Λ , gravitational constant G , and the speed of light c .
Rajendra P. Gupta
doaj   +1 more source

Objects of Affection: Deathly Encounters With Taxidermy, Stuffed Toys and Atmospheres

open access: yesChildren &Society, EarlyView.
ABSTRACT This paper explores how children and young people relate to death through affective atmospheres and embodied, imaginative encounters with taxidermy and stuffed toy animals. Using arts‐based research (ABR), we explore how death, affective atmospheres, empathy and materiality entangle during multispecies relations.
Rachel Sinquefield‐Kangas   +2 more
wiley   +1 more source

Renormalized cosmological perturbation theory

open access: yesPhysical Review D, 2006
We develop a new formalism to study nonlinear evolution in the growth of large-scale structure, by following the dynamics of gravitational clustering as it builds up in time. This approach is conveniently represented by Feynman diagrams constructed in terms of three objects: the initial conditions (e.g.
Crocce, M., Scoccimarro, R.
openaire   +2 more sources

An effective approach to the problem of time [PDF]

open access: yes, 2010
A practical way to deal with the problem of time in quantum cosmology and quantum gravity is proposed. The main tool is effective equations, which mainly restrict explicit considerations to semiclassical regimes but have the crucial advantage of allowing
Sub String Theory Cosmology and ElemPart   +4 more
core  

Shift-symmetries and gauge coupling functions in orientifolds and F-theory [PDF]

open access: yes, 2017
We investigate the field dependence of the gauge coupling functions of four-dimensional Type IIB orientifold and F-theory compactifications with space-time filling seven-branes.
Sub String Theory Cosmology and ElemPart   +7 more
core   +1 more source

The obsolescence of protected area categories in a polycrisis world

open access: yesConservation Biology, EarlyView.
Abstract Current global conservation models face significant limitations in addressing the global polycrisis, and the constraints of the International Union for Conservation of Nature protected area (PA) classification system are part of the issue. The principles of the new conservation paradigm—governance, equity, and interculturality—are not viable ...
Pamela Esther Degele
wiley   +1 more source

Varying Physical Constants, Astrometric Anomalies, Redshift and Hubble Units

open access: yesGalaxies, 2019
We have developed a cosmological model by allowing the speed of light c, gravitational constant G and cosmological constant Λ in the Einstein filed equation to vary in time, and solved them for Robertson-Walker metric.
Rajendra P. Gupta
doaj   +1 more source

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