Uniersity of Chicago chemists hae demonstrated for the first time how to use a simple laboratory model consisting of only a few chemical reactions to predict when and where blood clotting will occur.

• 芝加哥大学的化学家们首次展示了如何使用一个简单的只有几步化学反应的实验室模型来预测血液会在何时何处发生凝固。