Results 111 to 120 of about 86,860 (314)
On the Possibility of Supertasks in General Relativity [PDF]
, 2009 Malament-Hogarth spacetimes are the sort of models within general relativity that seem to allow for the possibility of supertasks. There are various ways in which these spacetimes might be considered physically problematic.
Manchak, John Byron
core
The relativity of inertia and reality of nothing [PDF]
, 2008 The determination of inertia by matter is looked at in general relativity, where inertia can be represented by affine or projective structure. The matter tensor T seems to underdetermine affine structure by ten degrees of freedom, eight of which can be ...
Afriat, Alexander +4 more
core +1 more source
Comparing the relative volume with the relative inradius and the relative width [PDF]
Journal of Inequalities and Applications, 2006 We consider subdivisions of a convex body in two subsets and . We obtain several inequalities comparing the relative volume: (1) with the minimum relative inradius, (2) with the maximum relative inradius, (3) with the minimum relative width, and (4) with the maximum relative width.
openaire +3 more sources
Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Background Japan has one of the highest dialysis prevalence rates worldwide and a shrinking, aging population. Whether dialysis burden has entered a sustained post‐peak phase or whether recent declines partly reflect pandemic‐related disruptions remains uncertain.
Hatice Şahin +2 more
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
core
Interstellar travel guide: Chronicles of a violent universe
Mètode Science Studies Journal: Annual Review, 2017 In contrast to observations from our local viewpoint, the universe is extremely violent. Explosions of massive stars, X-ray and gamma-ray binary stars, and active galaxies are related to the presence of compact objects such as neutron stars or black ...
Manel Perucho, José A. Font
doaj +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
Acta Polytechnica, 2013 According to some generalized correspondence principle the classical limit of a non-Hermitian quantum theory describing quantum degrees of freedom is expected to be the well known classical mechanics of classical degrees of freedom in the complex phase ...
Frieder Kleefeld
doaj
REL — a logic for relative evidential support
International Journal of Approximate Reasoning, 1993 AbstractA formal logic—REL for Relative Evidential Support is proposed based on the following ideas: 1.1. Arguments are represented directly and are taken as the terms for REL. By arguments we mean the relationships between two judgments expressing that one supports or refutes the other, ie, evidential supports;2.2.
Zhi An, David A. Bell, John G. Hughes
openaire +2 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