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Finland-based Wolt was founded in 2014 by Miki Kuusi, who, upon the deal closing, will run DoorDash International and report to Xu. The company has over 4,000 employees across 23 countries and its technology enables users to easily discover and receive food via its platform by selecting a restaurant, placing the order and hitting send.

Wolt has raised over $850 million to date, according to its Crunchbase profile. Its most recent funding round was $530 million in January, led by Iconiq Growth, with participation from Tiger Global, DST, KKR, Prosus, EQT Growth, EQT Ventures and Coatue.

Wolt represents DoorDash’s sixth acquisition according to Crunchbase data and its second in 2,021 which includes an acquisition of Chowbotics earlier this year. The latest transaction is expected to close in the first half of 2022.

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In a first for particle physics, the CMS collaboration has observed three J/ψ particles emerging from a single collision between two protons.

It’s a triple treat. By sifting through data from particle collisions at the Large Hadron Collider (LHC), the CMS collaboration has seen not one, not two but three J/ψ particles emerging from a single collision between two protons. In addition to being a first for particle physics, the observation opens a new window into how quarks and gluons are distributed inside the proton.

The J/ψ particle is a special particle. It was the first particle containing a charm quark to be discovered, winning Burton Richter and Samuel Ting a Nobel prize in physics and helping to establish the quark model of composite particles called hadrons.

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Engineers have successfully transferred digitally encoded information wirelessly using nuclear radiation instead of conventional technology.

Radio waves and mobile phone signals relies on for communication but in a new development, engineers from Lancaster University in the UK, working with the Jožef Stefan Institute in Slovenia, transferred digitally encoded information using “fast neutrons” instead.

The researchers measured the spontaneous emission of fast neutrons from californium-252, a radioactive isotope produced in nuclear reactors.

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Yekaterina “Kate” Shulgina was a first year student in the Graduate School of Arts and Sciences, looking for a short computational biology project so she could check the requirement off her program in systems biology. She wondered how genetic code, once thought to be universal, could evolve and change.

That was 2016 and today Shulgina has come out the other end of that short-term project with a way to decipher this genetic mystery. She describes it in a new paper in the journal eLife with Harvard biologist Sean Eddy.

The report details a new computer program that can read the of any organism and then determine its genetic code. The program, called Codetta, has the potential to help scientists expand their understanding of how the genetic code evolves and correctly interpret the genetic code of newly sequenced .

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