Sadjad Arzash

New preprint🚨: cryoSENSE. We show that diffusion models as generative priors, along with sparse priors, can boost electron microscopy data throughput by reconstructing high-resolution cryo-EM images from compressed measurements arxiv.org/abs/2511.12931

⏱️ Over 300 hours have passed since #Iran imposed a national internet blackout to hide atrocities. Meanwhile, the regime uses whitelisted networks and places op-eds to shape opinion abroad. Attempts to obscure the truth will be documented in real time: The world is watching.

A cytoskeleton-inspired mechanical network with mechanosensitive proteins and motors performs contrastive learning from environmental cues, maintaining learned responses despite continuous molecular turnover. #AdaptationAndLearning go.aps.org/4qGku0t

A new, long paper on evolution - natural induction - split into 2: royalsocietypublishing.org/rsfs/article/1… royalsocietypublishing.org/rsfs/article/1… @RichardWatson90 and Tim Lewens "It is conventionally assumed that all evolutionary adaptation is produced, and could only possibly be produced, by natural selection. Natural induction is a different mechanism of adaptation. It occurs in dynamical systems described by a network of interactions, where connections give way slightly under stress and the system is subject to occasional perturbations. This differential adjustment of connections causes reorganization of the system’s internal structure in a manner equivalent to associative learning familiar in neural networks. This is sufficient for storage and recall of multiple patterns, learning with generalization and solving difficult constraint problems (without any natural selection involved). Various biological systems (from gene-regulation networks to metabolic networks to ecosystems) meet these basic conditions and therefore have potential to exhibit adaptation by natural induction. Here (and in a follow-on paper), we consider various ways that natural induction and natural selection might interact in biological evolution. For example, in some cases, natural selection may act not as a source of adaptations but as a memory of adaptations discovered by natural induction. We conclude that evolution by natural induction is a viable process that expands our understanding of evolutionary adaptation."

The 2025 Society of Rheology's Annual Meeting will be held in enchanted Santa Fe, NM on October 19-23. Look for our call for abstracts later this spring and save the dates to discuss everything that flows. We hope to see you there! #SoR2025