Eutrophication triggered changes in network structure and fluxes of the Comacchio Lagoon (Italy).

Coastal lagoons, which cover about 13% of coastline, are among the most productive ecosystems worldwide. However, they are subject to significant stressors, both natural and anthropogenic, which can alter ecosystem services and functioning and food web structure. In the Comacchio Lagoon (Northern Italy), eutrophication, among other minor factors, transformed the ecosystem in the early 1980s.

Selection for altruistic defense in structured populations.

We model natural selection for or against an anti-parasite (or anti-predator) defense allele in a host (or prey) population that is structured into many demes. The defense behavior has a fitness cost for the actor compared to non defenders ("cheaters") in the same deme and locally reduces parasite growth rates. Hutzenthaler et al.

Pulsed field ablation for atrial fibrillation with a novel simplified protocol: The PFA dose study.

Background: Pulsed field ablation (PFA) with use of a pentaspline catheter for the treatment of atrial fibrillation is performed in a standardized fashion. Whether a reduced number of applications results in similar clinical outcomes has not been fully investigated.

Objective: This study aimed to assess a simplified PFA dosing protocol for pulmonary vein isolation (PVI) compared with a standard protocol.