Results 81 to 90 of about 7,004,183 (346)
, 2004 A brief review (~8K words) of the history and philosophy of special and general relativity for a Dictionary of the History of ...
Janssen, Michel
core
Phenomenological aspects of black holes beyond general relativity [PDF]
Physical Review D, 2018 While singularities are inevitable in the classical theory of general relativity, it is commonly believed that they will not be present when quantum gravity effects are taken into account in a consistent framework.
R. Carballo-Rubio +3 more
semanticscholar +1 more source
Prediction in general relativity [PDF]
Synthese, 2015 Several authors have claimed that prediction is essentially impossible in the general theory of relativity, the case being particularly strong, it is said, when one fully considers the epistemic predicament of the observer. Each of these claims rests on the support of an underdetermination argument and a particular interpretation of the concept of ...
openaire +1 more source
Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system
FEBS Letters, EarlyView.Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley +1 more source
Is Prediction Possible in General Relativity? [PDF]
, 2008 Here we briefly review the concept of "prediction" within the context of classical relativity theory. We prove a theorem asserting that one may predict one's own future only in a closed universe.
Manchak, John, John Byron Manchak
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Boundary effects in General Relativity with tetrad variables [PDF]
General Relativity and Gravitation, 2019 Varying the gravitational Lagrangian produces a boundary contribution that has various physical applications. It determines the right boundary terms to be added to the action once boundary conditions are specified, and defines the symplectic structure of
R. Oliveri, Simone Speziale
semanticscholar +1 more source
What is general relativity? [PDF]
Physica Scripta, 2017 18 pages. Invited article for Physica Scripta Focus issue on 21st Century Frontiers. v2: Appendix amended, references added.
Alan A Coley, David L Wiltshire
openaire +3 more sources
Diversity and complexity in neural organoids
FEBS Letters, EarlyView.Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley +1 more source
The origin of the spacetime metric: Bell's `Lorentzian pedagogy' and its significance in general relativity [PDF]
, 1999 The purpose of this paper is to evaluate the `Lorentzian Pedagogy' defended by J.S. Bell in his essay ``How to teach special relativity'', and to explore its consistency with Einstein's thinking from 1905 to 1952.
Pooley, Oliver, Brown, Harvey R.
core
Deformed general relativity [PDF]
Physical Review D, 2013 14 ...
Bojowald, Martin, Paily, George M.
openaire +2 more sources