Centro Ricerche Enrico Fermi

Polarization and echo chambers in Reddit’s political discourse

Online social media have become important arenas for political debate, with election periods amplifying ideological engagement. Polarization and echo chamber effects were shown to be important for platforms like Twitter or Facebook but less for others like Reddit. Here we challen...

Large-Scale Cerebellar-Cerebral Network Alterations Underlying Impaired Social Predictive Processing in Cerebellar Neurodegeneration

Abstract The cerebellum is a key node for detecting and adjusting social-prediction internal models. Yet social prediction has been scantly investigated in neurodegenerative cerebellar patients (CB). Thus, we examined CB social-prediction abilities and related cerebellar-cerebral...

Structural study of archaic orichalcum ingots from gela (sicily) via time-of-flight neutron diffraction

Abstract Orichalcum is a precious copper-zinc alloy known from ancient Mediterranean contexts. Eighty ingots of Orichalcum were recovered underwater near Gela (Sicily, Italy) and they are dated back to the 6th century BCE establishing a unicum in the Mediterranean Sea. Here, 11 s...

Construction and characterisation of the DarkSide-20k veto silicon photo-multiplier tiles

Abstract Silicon photo-multipliers (SiPMs) are state-of-the-art sensors capable of detecting a single photoelectron under cryogenic conditions, with potentially lower radioactivity than widely used photomultiplier tubes. The DarkSide-20k experiment, designed to perform direct dar...

Characterization of diseases in temporal comorbidity networks

Comorbidity networks, or disease-disease networks, represent relationships between diseases and can reveal non-random disease associations and multimorbidity structure. These patterns reflect shared pathophysiology, diagnostic pathways, and risk of adverse outcomes. Using large-s...

When one protocol fits none: Self-organized network routing through evolutionary game dynamics

Packet routing on scale-free networks faces a fundamental trade-off: shortest-path routing is efficient at low demand but funnels traffic through hubs and jams early, whereas congestion-aware routing postpones jamming at the price of a sharper collapse. Since neither paradigm dom...

AI agents can coordinate via majority-following beyond human scale

Large language models (LLMs) are increasingly deployed in collaborative tasks forming “AI agent societies” where agents interact and influence one another. Whether such groups can spontaneously coordinate without external influence, a hallmark of self-organized regulation in huma...