Carson Schmidt and his friend spotted the man in distress after noticing a pair of skis protruding from the snow. The pair sprang into action, digging him out before he suffocated.
Rebecca Morelle, Alison Francis and Greg BrosnanBBC Science
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branch's many controls, IBM decided to encrypt the network connection.
For Dr Karen Everstine, lead in cinnamon shows the importance of not only regulatory agencies but also a well-functioning public health system, "to help support food safety and detect anomalies".