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Исследователи выяснили, что пестициды и промышленные отходы из рек и озер могут накапливаться в тканях рыб. При этом в печени рыб есть белки, которые обезвреживают опасные вещества. Когда токсинов слишком много, белок начинает работать интенсивнее — по его активности ученые могут понять степень загрязнения водоема.
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"It's been investigated for many years," says Read, acknowledging that elastomers have yet to revolutionise actuator tech. "Often with these technologies, you have to keep pushing."。safew官方版本下载对此有专业解读
I’ve been lucky enough to attend six summer Olympic Games, but I’d never before photographed a Winter Olympics. They’ve always been too far away and the UK has never been a major snowsport country, which has limited their news appeal. This time it was different. With Team GB anticipating a record medal haul and the Games staged in northern Italy, I headed off with nervous excitement, lured by the promise of fast action sports occurring amid beautiful snowy vistas. I covered ski jumping, big air, ice hockey, biathlon, curling and much more. A lot of it was alien to me but it was very enjoyable. There were new rules to learn, new challenges to face – I’ve certainly never had to wear sharp crampons at a football match.