Results 11 to 20 of about 79,204 (264)

Modelling large timescale and small timescale service variability [PDF]

open access: yesAnnals of Operations Research, 2018
Abstract The performance of service units may depend on various randomly changing environmental effects. It is quite often the case that these effects vary on different timescales. In this paper, we consider small and large scale (short and long term) service variability, where the short term variability affects the instantaneous service speed of the ...
Marco Gribaudo   +3 more
openaire   +7 more sources

Estimating fMRI timescale maps. [PDF]

open access: yesImaging Neurosci (Camb)
Abstract Brain activity unfolds over hierarchical timescales that reflect how brain regions integrate and process information, linking functional and structural organization. While timescale studies are prevalent, existing estimation methods rely on the restrictive assumption of exponentially decaying temporal autocorrelation and only
Riegner G   +3 more
europepmc   +3 more sources

The Timescales of Quantum Breaking

open access: yesFortschritte der Physik, 2023
AbstractDue to the inevitable existence of quantum effects, a classical description generically breaks down after a finite quantum break‐time . We aim to find criteria for determining . To this end, we construct a new prototype model that features numerous dynamically accessible quantum modes.
Michel, Marco, Zell, Sebastian
openaire   +3 more sources

Lyapunov’s inequality on timescales

open access: yesApplied Mathematics Letters, 2006
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Fu-Hsiang Wong   +3 more
openaire   +2 more sources

Timescales

open access: yes, 2022
For many organic chemists, it's hard to grasp the vast difference between various "fast" units of time. For instance, if a reactive intermediate has a lifetime of microseconds, does that mean it can escape the solvent shell and react with a substrate? What about a lifetime of nanoseconds, picoseconds, or femtoseconds?
openaire   +2 more sources

Mapping the Timescale of Suicidal Thinking

open access: yesProceedings of the National Academy of Sciences, 2022
Suicide is one of the most devastating aspects of human nature and has puzzled scholars for thousands of years. Most suicide research to date has focused on establishing the prevalence and predictors of the presence or severity of suicidal thoughts/behaviors.
Daniel D.L. Coppersmith   +5 more
openaire   +2 more sources

Dynamic properties of language anxiety

open access: yesStudies in Second Language Learning and Teaching, 2020
This article begins by examining previous empirical studies to demonstrate that language anxiety, or the negative emotional reaction learners experience when using a second language (MacIntyre & Gardner, 1999), is a dynamic individual difference learner ...
Tammy Gregersen
doaj   +1 more source

Timescales of Genetic and Epigenetic Inheritance [PDF]

open access: yesCell, 2007
According to classical evolutionary theory, phenotypic variation originates from random mutations that are independent of selective pressure. However, recent findings suggest that organisms have evolved mechanisms to influence the timing or genomic location of heritable variability.
Rando, Oliver J., Verstrepen, Kevin
openaire   +2 more sources

Soft-assembled multilevel dynamics of tactical behaviors in soccer

open access: yesFrontiers in Psychology, 2016
This study aimed to identify the tactical patterns and the timescales of variables during a soccer match, allowing understanding the multilevel organization of tactical behaviors, and to determine the similarity of patterns performed by different groups ...
Angel Ric   +4 more
doaj   +1 more source

Distinguishing the main climatic drivers to the variability of gross primary productivity at global FLUXNET sites

open access: yesEnvironmental Research Letters, 2023
Climate exerts both short-term and long-term impacts on the ecosystem carbon assimilation. However, the main climatic drivers for the variability of gross primary productivity (GPP) remain unclear across various timescales and vegetation types.
Hao Zhou   +6 more
doaj   +1 more source

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