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VAR review: UCL ref got the Mendes-Madueke call ri...
Video assistant referee causes controversy every week whether it be the Premier League, Champions League or FA Cup, but how are decisions made and are they correct? This season, we take a look at the major incidents to examine and explain the process both in terms of VAR protocol and the Laws of the Game. Andy Davies (@andydaviesref) is a former Select Group referee, with over 12 seasons on the elite list, working across the Premier League and Championship.
Why is the USMNT playing meaningless friendlies ri...
The biggest FIFA World Cup in history is less than two weeks away. Over the course of 39 days, 103 crucial games -- and one meaningless third-place game -- will be played en route to deciding a global champion. So, what better way to lead into the festivities than with ... a bunch of friendly games that don't matter?
A Generalized Richardson Number Diagnostic for Turbulence in the Free Atmosphere
arXiv:2602.21770v2 Announce Type: replace Abstract: A new Richardson number formulation, Ri_new, is introduced to improve the diagnosis of turbulence in the stratified free atmosphere. The formulation is derived from the turbulent kinetic energy budget and accounts for both vertical wind shear and horizontal shear (deformation and divergence), weighted by the ratio of horizontal to vertical eddy viscosities (K_mh/K_mv). This extends the classical Richardson number Ri_old, which accounts only...
Baroclinic wave dynamics in the Ekman-free rotating rectangular annulus with localized forced plume
arXiv:2606.10386v1 Announce Type: new Abstract: We report numerical simulations of a rotating rectangular annulus that isolates the Ekman-free bulk of the cylindrical baroclinic annulus, subjected to bi-directional temperature gradients imposed by a uniformly cooled inner wall and a localized forced heated plume at the outer bottom. The finite-volume OpenFOAM solver is employed across combinations of source Richardson number $Ri_0 = 99, 4, 1$ and Rossby number $Ro = 0.3, 0.1, 0.07$. A...
Cell-Dense Bioink Design for Xolography: Coupling Refractive Index-Matching with Increased Photoreactivity
Bioxolography enables high-resolution fabrication of geometrically complex, cell-laden constructs for tissue engineering. However, tissue-relevant cell densities conflict with the optical transparency required for efficient dual-color volumetric printing. In this work, we extend the Bioxolography toolbox to include refractive index (RI) matching for cell-laden bioresins using iodixanol (IDX).
‘As close as lips and teeth’: The highs and lows of China-North Korea ties
‘As close as lips and teeth’: The highs and lows of China-North Korea ties Chinese President Xi has been welcomed in Pyongyang for the first visit since 2019. Chinese President Xi Jinping arrived in Pyongyang on Monday to the full theatre of North Korean state ceremony, with flags, flowers, military honours and crowds to welcome the leader of the country that has long been one of North Korea’s closest allies. Kim Jong Un and his wife, Ri Sol Ju, greeted Xi and wife, Peng Liyuan, at...
Xi Jinping’s visit to North Korean war monument evokes ‘eternal historical memory’
Chinese President Xi Jinping emphasised the shared sacrifices and deep historical ties between China and North Korea during a visit to a historic mountainside in Pyongyang on Tuesday. Xi and first lady Peng Liyuan paid tribute at the Sino-Korean Friendship Tower in Moran Hill, accompanied by North Korean leader Kim Jong-un and his wife Ri Sol-ju. Honour guards placed a floral basket at the monument with a ribbon inscribed with the words “The martyrs of the Chinese People’s Volunteer (CPV)...
Pyongyang rolls out the red carpet as Xi Jinping is welcomed with pomp and ceremony
China’s President Xi Jinping received a colourful welcome in Pyongyang as he began his two-day state visit to North Korea, his first in seven years. After landing at the airport, where Xi and first lady Peng Liyuan were welcomed by North Korean leader Kim Jong-un and his wife Ri Sol-ju with a handshake, the Chinese leader was escorted through the streets of Pyongyang by a nine-column motorcade to Kim Il-sung Square, the capital’s primary venue for parades and political events. There, at a...
Evaluating Stochastic Collapse and Implicit Bias in Multimodal Large Language Models
arXiv:2606.05874v1 Announce Type: new Abstract: Current evaluations for Multimodal Large Language Models (MLLMs) overwhelmingly focus on utility-driven objectives, leaving model behavior under logic-neutral scenarios largely underexplored. Stochasticity is essential in scenarios where multiple actions are equally valid, such as recommending travel itineraries or daily schedules where multiple options have similar utility. In such settings, deterministic policies may lead to repetitive...
China's Xi vows unwavering support for North Korea's Kim in rare Pyongyang visit
China's Xi vows unwavering support for North Korea's Kim in rare Pyongyang visit SEOUL: China will not swerve from its commitment to safeguarding common interests with North Korea or waver in its support for Kim Jong Un, President Xi Jinping told Pyongyang's leader on Monday (Jun 8) during a rare summit. The neighbours should strengthen strategic ties and firmly protect their sovereignty, security, and development interests, Xi told Kim, an official Chinese summary of the meeting showed, as...