EDITORS' SUGGESTION
Evidence of scale-free clusters of vegetation in tropical rainforests
Pablo Villegas, Tommaso Gili, Guido Caldarelli, and Andrea Gabrielli
Phys. Rev. E 109, L042402 (2024)The distribution of vegetation clusters in a tropical rainforest shows evidence of scale-invariance, suggesting a system close to a critical state. This observation could help to diagnose the health of rainforests and other ecosystems in the face of environmental change.
EDITORS' SUGGESTION
Probe particles in odd active viscoelastic fluids: How activity and dissipation determine linear stability
Charlie Duclut et al.
Phys. Rev. E 109, 044126 (2024)Odd viscoelastic materials obey fewer symmetries than traditional materials, and as a consequence exhibit unusual features. This paper reports an investigation into the motion of a probe particle in an odd viscoelastic fluid, as a means to explore the consequences of the broken symmetries.
PERSPECTIVE
Physics-informed and data-driven discovery of governing equations for complex phenomena in heterogeneous media
Muhammad Sahimi
Phys. Rev. E 109, 041001 (2024)With the availability of large amounts of data from observations and simulations of complex phenomena, there is a need for developing rigorous and robust methods for analyzing, modeling, and predicting the state of the system of interest. This Perspective provides an overview of these approaches, presents some meaningful applications in a variety of fields, and discusses future directions.
EDITORS' SUGGESTION
Dislike of general opinion makes for tight elections
O. Devauchelle, P. Szymczak, and P. Nowakowski
Phys. Rev. E 109, 044106 (2024)The authors investigate an Ising model of an electorate in which voters are influenced by opinion polls, as well as by their neighbors. The voters hold one of two opposite opinions. The work shows that opinion polls tend to bring about polarized societies, with spatially separated groups having different opinions. The authors discuss factors that influence the voters and note that electorates with greater than a million voters tend to have very close elections.
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