Tootfinder

I wonder where Ireland’s regulator got this idea?
https://mastodon.neilzone.co.uk/@neil/114751272606146547

Multimodal, Multi-Disease Medical Imaging Foundation Model (MerMED-FM)
Yang Zhou, Chrystie Wan Ning Quek, Jun Zhou, Yan Wang, Yang Bai, Yuhe Ke, Jie Yao, Laura Gutierrez, Zhen Ling Teo, Darren Shu Jeng Ting, Brian T. Soetikno, Christopher S. Nielsen, Tobias Elze, Zengxiang Li, Linh Le Dinh, Lionel Tim-Ee Cheng, Tran Nguyen Tuan Anh, Chee Leong Cheng, Tien Yin Wong, Nan Liu, Iain Beehuat Tan, Tony Kiat Hon Lim, Rick Siow Mong Goh, Yong Liu, Daniel Shu Wei Ting

Multimodal, Multi-Disease Medical Imaging Foundation Model (MerMED-FM)
Current artificial intelligence models for medical imaging are predominantly single modality and single disease. Attempts to create multimodal and multi-disease models have resulted in inconsistent clinical accuracy. Furthermore, training these models typically requires large, labour-intensive, well-labelled datasets. We developed MerMED-FM, a state-of-the-art multimodal, multi-specialty foundation model trained using self-supervised learning and a memory module. MerMED-FM was trained on 3.3 mi…

A stochastic approach to time-dependent BEC
Luigi Borasi, Francesco C. De Vecchi, Stefania Ugolini
https://arxiv.org/abs/2506.20012 https://

A stochastic approach to time-dependent BEC
We propose a stochastic description of the dynamics of a Bose-Einstein condensate within the context of Nelson stochastic mechanics. We start from the $N$ interacting conservative diffusions, associated with the $N$ Bose particles, and take an infinite particle limit. We address several aspects of this formulation. First, we consider the problem of extending to a system with self-interaction the variational formulation of Nelson stochastic mechanics due to Guerra and Morato. In this regard we d…

Discovery of magnon self-interaction in a strongly driven antiferromagnet
David Rohrbach, Zhuquan Zhang, Takayuki Kurihara, Keith A. Nelson
https://arxiv.org/abs/2506.19040

Discovery of magnon self-interaction in a strongly driven antiferromagnet
Nonlinear dynamics govern a wide array of natural phenomena and are essential for understanding nonequilibrium behaviors in condensed matter systems. In magnetically ordered materials, magnons - the quanta of spin waves - exhibit intrinsic nonlinearities that are of great interest in fundamental research and practical applications. Despite progress in the nonlinear control of magnon modes in antiferromagnetic materials, the transition from perturbative to non-perturbative regimes of magnon cohe…

Noise-Resilient Spatial Search with Lackadaisical Quantum Walks
Gabriel M. O. Vieira, Nelson Maculan, Franklin de L. Marquezino
https://arxiv.org/abs/2508.13462 https://

Noise-Resilient Spatial Search with Lackadaisical Quantum Walks
Quantum walks are a powerful framework for the development of quantum algorithms, with lackadaisical quantum walks (LQWs) standing out as an efficient model for spatial search. In this work, we investigate how broken-link decoherence affects the performance of LQW-based search on a two-dimensional toroidal grid. We show through numerical simulations that, while decoherence drives the loopless walk toward a uniform distribution and eliminates its search capability, the inclusion of self-loops si…

Nielsen numbers of $n$-valued maps on infra-solvmanifolds
Karel Dekimpe, Lore De Weerdt
https://arxiv.org/abs/2506.13438 https://arxi…

Nielsen numbers of $n$-valued maps on infra-solvmanifolds
We derive a formula for the Nielsen number $N(f)$ for every $n$-valued self-map $f$ of an infra-solvmanifold. To do this, we express $N(f)$ in terms of Nielsen coincidence numbers of single-valued maps on solvmanifolds, and derive a formula for Nielsen coincidence numbers in that setting.

Leptogenesis in automatic Nelson-Barr models
Clara Murgui, Samuel Patrone
https://arxiv.org/abs/2506.18963 https://arxiv.org/pdf/2506…

Leptogenesis in automatic Nelson-Barr models
In this study, we numerically show that automatic Nelson-Barr models with new chiral fermions can simultaneously solve the strong CP problem and generate the observed baryon asymmetry via high-scale leptogenesis. In these models, all CP violation arises from a single spontaneous symmetry-breaking scale, linking the origin of quark and lepton CP phases. Using conservative assumptions and minimal dynamics, we identify a viable parameter window where successful leptogenesis occurs without spoiling…

Atomic-scale confinement of strongly charged 180 degree domain wall pairs in ZrO2
Nashrah Afroze, Hamoon Fahrvandi, Guodong Ren, Pawan Kumar, Christopher Nelson, Sarah Lombardo, Mengkun Tian, Ping-Che Lee, Jiayi Chen, Manifa Noor, Kisung Chae, Sanghyun Kang, Prasanna Venkat Ravindran, Matthew Bergschneider, Gwan Yeong Jung, Pravan Omprakash, Gardy K. Ligonde, Nujhat Tasneem, Dina Triyoso, Steven Consiglio, Kanda Tapily, Robert Clark, Gert Leusink, Jayakanth Ravichandran, Shimeng Yu, An…

Atomic-scale confinement of strongly charged 180 degree domain wall pairs in ZrO2
Self organized polar textures can occur in ferroelectric materials across multiple length scales, from nanometer scale vortices and skyrmions, to mesoscopic stripe domains, and macroscopic twin patterns, making these phenomena central to condensed matter physics and nanotechnology. Silicon compatible ferroelectrics such as HfO2 and ZrO2 spontaneously form alternating stacks of two dimensional (2D) polar and nonpolar half unit cell layers, effectively confining dipoles to isolated, single atomic…