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Eigenmodes in an ultra-relativistic ultra-magnetized pair QED-plasma

arXiv:2602.04065v2 Announce Type: replace Abstract: Ultra-relativistic quantum-electrodynamic (QED) plasmas, characterized by magnetic field strengths approaching and even exceeding the Schwinger field of approximately $B_{Q} \approx 4 \times 10^{13}$ gauss, hold significant interest for laser-plasma experiments and astrophysical observations of neutron stars and magnetars. In this study, we investigate the joint modification of normal plasma modes in ultra-relativistic electron-positron...

arXiv Physics 7d ago

Towards Accurate Heart Rate Measurement from Ultra-Short Video Clips via Periodicity-Guided rPPG Estimation and Signal Reconstruction

arXiv:2506.22078v2 Announce Type: replace Abstract: Many remote Heart Rate (HR) measurement methods focus on estimating remote photoplethysmography (rPPG) signals from video clips lasting around 10 seconds but often overlook the need for HR estimation from ultra-short video clips. In this paper, we aim to accurately measure HR from ultra-short 2-second video clips by specifically addressing two key challenges. First, to overcome the limited number of heartbeat cycles in ultra-short video...

arXiv CS 5d ago

Big tobacco uses cigarette playbook to help sell ultra-processed foods, journal reveals

New issue of the American Journal of Public Health focuses on parallels between marketing for cigarettes and UPFsThe new issue of the American Journal of Public Health focuses on ultra-processed foods, and reveals that big tobacco companies used strategies that helped them sell cigarettes to sell ultra-processed food products, including Lunchables, geared toward children. The parallels between ultra-processed foods (UPFs) and cigarettes include not only how UPF products were formulated and...

The Guardian Health 7d ago

Big tobacco uses cigarette playbook to help sell ultra-processed foods, journal reveals

New issue of the American Journal of Public Health focuses on parallels between marketing for cigarettes and UPFsThe new issue of the American Journal of Public Health focuses on ultra-processed foods, and reveals that big tobacco companies used strategies that helped them sell cigarettes to sell ultra-processed food products, including Lunchables, geared toward children. The parallels between ultra-processed foods (UPFs) and cigarettes include not only how UPF products were formulated and...

The Guardian Business 7d ago

Ultra-Orthodox protesters clash with Israeli police over army draft

Ultra-Orthodox protesters clash with Israeli police over army draft Ultra-Orthodox protesters clash with Israeli police over army draft Israeli police seen dragging ultra-Orthodox protesters from beneath a bus after they blocked major roads in West Jerusalem over mandatory military service. Tens of thousands joined the demonstrations, as police used water cannon, stun grenades and horses to disperse crowds amid long-running tensions over compulsory service for most Jewish Israelis. Published...

Al Jazeera 8d ago

Ultra-Orthodox Jewish demonstrators storm Israeli police station

Ultra-Orthodox Jewish demonstrators storm Israeli police station Ultra-Orthodox Jewish demonstrators storm Israeli police station Ultra-Orthodox Jewish demonstrators stormed a police station in Beit Shemesh, Israel, to protest the arrest of a man who abandoned military service. Israeli police used sound bombs and tear gas to disperse the crowd. Published On 1 Jun 2026

Al Jazeera 9d ago

Big tobacco uses cigarette playbook to help sell ultra-processed foods, journal reveals

New issue of the American Journal of Public Health focuses on parallels between marketing for cigarettes and UPFsThe new issue of the American Journal of Public Health focuses on ultra-processed foods, and reveals that big tobacco companies used strategies that helped them sell cigarettes to sell ultra-processed food products, including Lunchables, geared toward children. The parallels between ultra-processed foods (UPFs) and cigarettes include not only how UPF products were formulated and...

The Guardian World 7d ago

Big tobacco uses cigarette playbook to help sell ultra-processed foods, journal reveals

New issue of the American Journal of Public Health focuses on parallels between marketing for cigarettes and UPFsThe new issue of the American Journal of Public Health focuses on ultra-processed foods, and reveals that big tobacco companies used strategies that helped them sell cigarettes to sell ultra-processed food products, including Lunchables, geared toward children. The parallels between ultra-processed foods (UPFs) and cigarettes include not only how UPF products were formulated and...

The Guardian UK 7d ago

Ultra-processed foods may be stealing your focus even if you eat healthy

Ultra-processed foods may be stealing your focus even if you eat healthy - Date: - June 9, 2026 - Source: - Monash University - Summary: - A study of more than 2,100 adults found that eating more ultra-processed foods was linked to poorer attention and slower mental processing, even among people with otherwise healthy diets. Researchers also found higher consumption was associated with increased dementia risk factors, raising concerns about the hidden cognitive costs of heavily processed...

Science Daily 1d ago

Surface Laptop Ultra: Made for World Makers

Introducing Surface Laptop Ultra: Made for world makers The world is full of makers. Only a few make the world. Surface Laptop Ultra is for them.

Hacker News 9d ago