Results 1 to 10 of about 168 (167)

No Time for Time from No-Time

open access: yesPhilosophy of Science, 2021
Programs in quantum gravity often claim that time emerges from fundamentally timeless physics. In the semiclassical time program, time arises only after approximations are taken. Here we ask what justifies taking these approximations and show that time seems to sneak in when answering this question.
Craig Callender, Eugene Yew Siang Chua
openaire   +4 more sources

On Time [PDF]

open access: yesLetters in Mathematical Physics, 2016
36 pages. Improved exposition. To appear in Lett.
Cattaneo A. S., Schiavina M.
openaire   +5 more sources

One Time, Two Times, or No Time? [PDF]

open access: yes, 2021
Contemporary research programs in fundamental physics appear to suggest that there could be two (physical) times---or none at all. This essay articulates these possibilities in the context of quantum gravity, and in particular of cosmological models developed in an approach called `loop quantum gravity', and explains how they could nevertheless ...
openaire   +2 more sources

TIME, AND TIME AGAIN [PDF]

open access: yesThe Philosophical Quarterly, 2021
Abstract A number of philosophers uphold a metaphysical symmetry between time and hypertime, in this sense: in so far as hypertime exists, the nature of hypertime should agree with the nature of time. Others allow that we can mix and match the metaphysics of time and hypertime.
Baron, Sam, Lin, Yi-Cheng
openaire   +3 more sources

Continuous-time games of timing [PDF]

open access: yesJournal of Economic Theory, 2005
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Rida Laraki   +3 more
openaire   +8 more sources

Time perception: Brain time or event time? [PDF]

open access: yesCurrent Biology, 2001
Recent experiments show that synchronous events can appear to an observer to occur at different times. Neural processing time delays are offered as an explanation of these temporal illusions, but equating perceived time with processing time leads to some thorny philosophical problems.
Shin'ya Nishida, Alan Johnston
openaire   +3 more sources

A time for atlases and atlases for time [PDF]

open access: yesFrontiers in Systems Neuroscience, 2010
Advances in neuroanatomy and computational power are leading to the construction of new digital brain atlases. Atlases are rising as indispensable tools for comparing anatomical data as well as being stimulators of new hypotheses and experimental designs. Brain atlases describe nervous systems which are inherently plastic and variable. Thus, the levels
Yoav Livneh, Adi Mizrahi, Adi Mizrahi
openaire   +4 more sources

Time for Timed Monitorability [PDF]

open access: yes
Monitoring is an important part of the verification toolbox, in particular in situations where exhaustive verification using, e.g., model-checking is infeasible. The goal of online monitoring is to determine the satisfaction or violation of a specification during runtime, i.e., based on finite execution prefixes.
Grosen, Thomas M.   +3 more
openaire   +3 more sources

From time to times [PDF]

open access: yesFractional Calculus and Applied Analysis, 2022
Abstract We give an overview of the concept of random time changes in evolution processes. First of all, we discuss random times in Markov processes. Secondly, we propose to use the concept of random times for dynamical systems. In both cases did appear fractional evolution equations.
openaire   +2 more sources

The unpredictably eruptive dynamics of spruce budworm populations in eastern Canada

open access: yesPopulation Ecology, EarlyView.
We examine historical population data for spruce budworm from several locations through the period 1930–1997, and use density‐dependent recruitment curves to test whether the pattern of population growth over time is more consistent with Royama's (1984; Ecological Monographs 54:429–462) linear R(t) model of harmonic oscillation at Green River New ...
Barry J. Cooke, Jacques Régnière
wiley   +1 more source

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