Tootfinder

A laser with instability reaching $4 \times 10^{-17}$ based on a 10-cm-long silicon cavity at sub-5-K temperatures
Zhi-Ang Chen, Hao-Ran Zeng, Wen-Wei Wang, Han Zhang, Run-Qi Lei, Jian-Zhang Li, Cai-Yin Pang, She-Song Huang, Xibo Zhang
https://arxiv.org/abs/2510.06636

A laser with instability reaching $4 \times 10^{-17}$ based on a 10-cm-long silicon cavity at sub-5-K temperatures
The realization of ultra-stable lasers with $10^{-17}$-level frequency stability has enabled a wide range of researches on precision metrology and fundamental science, where cryogenic single-crystalline cavities constitute the heart of such ultra-stable lasers. For further improvements in stability, increasing the cavity length at few-kelvin temperatures provides a promising alternative to utilizing relatively short cavities with novel coating, but has yet to be demonstrated with state-of-the-a…

I had never heard of this program, to help track the flu.
https://mstdn.ca/@c_9/115154664119763647

Cameron MacLeod (@c_9@mstdn.ca)
Attached: 3 images Ten years ago, I joined Public Health Canada’s “FluWatchers”. Every Monday I get a 2-question survey asking if I had a cough or fever last week. Takes 20 seconds. They collect data from thousands of Canadians to help track respiratory illness like COVID & flu. You can join for free and help public health groups know what’s going on! Just go here: https://public.cnphi-rcrsp.ca/fluWatcher/register #PublicHealth

The RFKJr. situation is generally terrible and all, but apparently CDC managed to keep enough conditions in the "high risk" qualifications to cover just about everyone.
#Covid #Vaccines

Foundation Model-Driven Classification of Atypical Mitotic Figures with Domain-Aware Training Strategies
Piotr Giedziun, Jan So{\l}tysik, Mateusz G\'orczany, Norbert Ropiak, Marcin Przymus, Piotr Krajewski, Jaros{\l}aw Kwiecie\'n, Artur Bartczak, Izabela Wasiak, Mateusz Maniewski
https://arxiv.org/abs/2509.02601

Foundation Model-Driven Classification of Atypical Mitotic Figures with Domain-Aware Training Strategies
We present a solution for the MIDOG 2025 Challenge Track~2, addressing binary classification of normal mitotic figures (NMFs) versus atypical mitotic figures (AMFs). The approach leverages pathology-specific foundation model H-optimus-0, selected based on recent cross-domain generalization benchmarks and our empirical testing, with Low-Rank Adaptation (LoRA) fine-tuning and MixUp augmentation. Implementation includes soft labels based on multi-expert consensus, hard negative mining, and adaptiv…

FedCVD : Communication-Efficient Federated Learning for Cardiovascular Risk Prediction with Parametric and Non-Parametric Model Optimization
Abdelrhman Gaber, Hassan Abd-Eltawab, John Elgallab, Youssif Abuzied, Dineo Mpanya, Turgay Celik, Swarun Kumar, Tamer ElBatt
https://arxiv.org/abs/2507.22963…

FedCVD++: Communication-Efficient Federated Learning for Cardiovascular Risk Prediction with Parametric and Non-Parametric Model Optimization
Cardiovascular diseases (CVD) cause over 17 million deaths annually worldwide, highlighting the urgent need for privacy-preserving predictive systems. We introduce FedCVD++, an enhanced federated learning (FL) framework that integrates both parametric models (logistic regression, SVM, neural networks) and non-parametric models (Random Forest, XGBoost) for coronary heart disease risk prediction. To address key FL challenges, we propose: (1) tree-subset sampling that reduces Random Forest communi…

Learning with errors may remain hard against quantum holographic attacks
Yunfei Wang, Xin Jin, Junyu Liu
https://arxiv.org/abs/2509.22833 https://arxiv.org…

Learning with errors may remain hard against quantum holographic attacks
The Learning with Errors (LWE) problem underlies modern lattice-based cryptography and is assumed to be quantum hard. Recent results show that estimating entanglement entropy is as hard as LWE, creating tension with quantum gravity and AdS/CFT, where entropies are computed by extremal surface areas. This suggests a paradoxical route to solving LWE by building holographic duals and measuring extremal surfaces, seemingly an easy task. Three possible resolutions arise: that AdS/CFT duality is intr…

From confinement to chaos in AdS/CFT correspondence via non-equilibrium local states
Dmitry S. Ageev, Vladimir A. Bykov
https://arxiv.org/abs/2507.22999 https://

From confinement to chaos in AdS/CFT correspondence via non-equilibrium local states
In this paper, we study excited states in Anti-de Sitter (AdS) space prepared by local operator insertions of a massive scalar field, corresponding to operator quenches for free fields in AdS. Using the AdS/CFT correspondence, we compute the time evolution of boundary observables in the dual states. We then introduce a hard wall in AdS Poincare coordinates to impose an infrared cutoff, creating a confining deformation of the dual conformal field theory, and analyze the dynamics of excited state…

“We are now in the heart of danger.”
Just had a message from Yousef, Nouran’s brother, on Signal.
Please help @… and her family is you can.
https://…

🇺🇦 #NowPlaying on KEXP's #MorningShow
The Gap Band:
🎵 Burn Rubber (Why You Wanna Hurt Me)
#TheGapBand
https://djsouthernguy88.bandcamp.com/track/the-gap-band-burn-rubber-on-me-slowed-chopped-by-dj-southern-guy
https://open.spotify.com/track/1Q1NvoaU74oZrh5ETMIWfL

Stephen Jones says Trevon Diggs “paid the price” for not rehabbing in Dallas https://www.sportingnews.com/us/nfl/alabama/news/stephen-jones-says-trevon-diggs-“paid-price”-not-rehabbing-dallas/91bb9be86e4d2c…