Results 21 to 30 of about 6,056,797 (275)

Overlapping timescales obscure early warning signals of the second COVID-19 wave. [PDF]

Proc Biol Sci, 2022
Dablander F, Heesterbeek H, Borsboom D, Drake JM.   +3 more
europepmc   +2 more sources

Catastrophic collapse can occur without early warning: examples of silent catastrophes in structured ecological models. [PDF]

PLoS ONE, 2013
Catastrophic and sudden collapses of ecosystems are sometimes preceded by early warning signals that potentially could be used to predict and prevent a forthcoming catastrophe.
Maarten C Boerlijst, Thomas Oudman, André M de Roos   +2 more
doaj   +1 more source

Early warning signals of changing resilience in the biogeochemistry and biology of a northern hardwood forest

Environmental Research Letters, 2023
Resilience is the ability of ecosystems to maintain function while experiencing perturbation. Globally, forests are experiencing disturbances of unprecedented quantity, type, and magnitude that may diminish resilience.
Alexandra R Contosta, John J Battles, John L Campbell, Charles T Driscoll, Sarah R Garlick, Richard T Holmes, Gene E Likens, Nicholas L Rodenhouse, Shannon H Rogers, Pamela H Templer, Matthew A Vadeboncoeur, Peter M Groffman   +11 more
doaj   +1 more source

Early-warning signals of impending speciation

Evolution, 2023
Abstract Species formation is a central topic in biology, and a large body of theoretical work has explored the conditions under which speciation occurs, including whether speciation dynamics are gradual or abrupt. In some cases of abrupt speciation, differentiation slowly builds up until it reaches a threshold, at which point linkage
Sinitambirivoutin, Maïdie, Nosil, Patrik, Flaxman, Samuel, Feder, Jeffrey, Gompert, Zachariah, Dakos, Vasilis   +5 more
openaire   +4 more sources

Probabilistic Multivariate Early Warning Signals

, 2022
A broad range of natural and social systems from human microbiome to financial markets can go through critical transitions, where the system suddenly collapses to another stable configuration. Critical transitions can be unexpected, with potentially catastrophic consequences.
Ville Laitinen, Leo Lahti
openaire   +3 more sources

Early Warning Signals Based on Momentary Affect Dynamics can Expose Nearby Transitions in Depression: A Confirmatory Single-Subject Time-Series Study

Journal for Person-Oriented Research, 2020
Background: In complex systems early warning signals such as rising autocorrelation, variance and network connectivity are hypothesized to anticipate relevant shifts in a system. For direct evidence hereof in depression, designs are needed in which early
Marieke Wichers, Arnout C. Smit, Evelien Snippe   +2 more
doaj   +1 more source

Effective precursors for self-organization of complex systems into a critical state based on dynamic series data

Frontiers in Physics, 2023
Many different precursors are known, but not all of which are effective, i.e., giving enough time to take preventive measures and with a minimum number of false early warning signals.
Andrey Dmitriev, Andrey Dmitriev, Andrey Lebedev, Vasily Kornilov, Victor Dmitriev   +4 more
doaj   +1 more source

Transformer Fault Early Warning Analysis Based on Hierarchical Clustering Combined with Decision Trees

Energies, 2023
The issues of low accuracy, poor generality, high cost of transformer fault early warning, and the subjective nature of empirical judgments made by field maintenance personnel are difficult to solve with the traditional measurement methods used during ...
Xiaoqiang Liu, Ji Li, Lei Shao, Hongli Liu, Lei Ren, Lihua Zhu   +5 more
doaj   +1 more source

Critical transitions in the hydrological system: early-warning signals and network analysis [PDF]

Hydrology and Earth System Sciences, 2022
One critical challenge of studying Earth's hydroclimate system, in the face of global environmental changes, is to predict whether the system approaches a critical threshold.
X. Yang, Z.-H. Wang, C. Wang
doaj   +1 more source

Early‐Warning Signals for Marine Anoxic Events [PDF]

Geophysical Research Letters, 2020
AbstractPredicting which marine systems are close to abrupt transitions into oxygen‐deficient conditions (“anoxia”) is notoriously hard but important—as rising temperatures and coastal eutrophication drive many marine systems toward such tipping points.
Rick Hennekam, Bregje van der Bolt, Egbert H. van Nes, Gert J. de Lange, Marten Scheffer, Gert‐Jan Reichart   +5 more
openaire   +4 more sources