Video captures the moment and aftermath of what appears to be a drone, allegedly of Ukrainian origin, striking Russian drone production facility. Russian officials claimed that only a worker's dormitory was hit. Russia has started to make steady progress against Ukraine as Kyiv's forces face dwindling ammunition supplies, much to Ukrainian President Volodymyr Zelenskyy's frustration. "There can be no question, Ukraine could be quickly overwhelmed by both men and arms by odds as great as 10 to 1 within weeks without additional U.S. assistance," Kenneth Braithwaite, a former ambassador and former Navy secretary during the Trump administration, told Fox News Digital. "This is a critical juncture in the war and time is of the essence for Congress to act on a comprehensive package," Braithwaite said.

Bayes' rule tells us how to invert a causal process in order to update our beliefs in light of new evidence. If the process is believed to have a complex compositional structure, we may observe that the inversion of the whole can be computed piecewise in terms of the component processes. We study the structure of this compositional rule, noting that it relates to the lens pattern in functional programming. Working in a suitably general axiomatic presentation of a category of Markov kernels, we see how we can think of Bayesian inversion as a particular instance of a state-dependent morphism in a fibred category. We discuss the compositional nature of this, formulated as a functor on the underlying category and explore how this can used for a more type-driven approach to statistical inference.

Driving into York Region on Toronto's northern border, what first stands out to most people are the large houses and vast estates that Michael Braithwaite says leaves the impression that homelessness isn't an issue here. But it is - and Braithwaite says people in the sprawling region of nine municipalities are seeing the pressure points and trying to address them. "The region has a plan and they've got some good service providers like Blue Door and others in the community that are going to make it happen," said Braithwaite, the CEO of Blue Door shelters. "A lot has happened in the last 10 years, so I can't wait to see the next 10." Predicting the next decade is difficult, even more so in the next year or two given the impact of the pandemic on the country's economic and social services.

In the early 2000s a group of scientists at Stanford University, California, revived a grisly procedure used in the 1950s known as parabiosis. They paired living mice, young with old, peeled back their skin and stitched together their sides so the two animals shared the same blood circulatory system. A month later, they found signs of rejuvenation in the muscles and livers of the old mice. The findings, published in 2005, turned the minds of scientists, entrepreneurs and the public to the potential of young blood to rejuvenate ageing people. By 2016, enough interest had grown to prompt a US-based startup called Ambrosia to start offering pricey infusions of young plasma – the cell-free component of blood. The procedure came under fire from the US Food and Drug Administration early last year both for its lack of proven clinical benefit and for potential safety issues; Ambrosia closed, though it has recently reopened.