Allergies are an immune system reaction to substances called allergens. The cause a range of symptoms from a stuffy nose to itchy eyes to difficulty breathing. How long allergies last varies based on ...

(1,2) GS catalyzes the condensation of glutamine from glutamate and ammonia using the chemical energy from ATP. Glutamine produced by this reaction contributes not only to amino acid homeostasis but ...

Learner Tien celebrates during his match. Learner Tien will break the top 100 of the ATP Rankings after stunning former world No 1 and three-time Australian Open finalist Daniil Medvedev in Melbourne.

TSN's five national feeds deliver more than 1,600 hours of world-class tennis a year, including the ATP 250 Series, World Tour 1000 and 500 series events. Get even more digital-only court feeds ...

After establishing the structural models of NiCat and Fe:NiCat consistent with experimental data, we used them to explore the atomistic mechanism of the oxygen evolution reaction (OER), which is ...

Quick reactions and selfie stickers have been added to make responding and creating stickers easier. The first update comes to the camera effects feature, which is now expanding the tools ...

All chemical reactions involve an energy change. We categorise reactions by the direction of this energy change. If energy is released by a reaction, the reaction is exothermic. If energy is absorbed ...

Manchester United simply tweeted the word "justice" after they saw off Arsenal on penalties in the FA Cup. The holders were handed a tough third round tie as they headed to the Emirates, but ...