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At the end of a difficult year for evidence, Ian L. Boyd, a chief scientific adviser to the UK government, draws lessons for making research more relevant.
Here's why women who get breast cancer after having a baby are at higher risk of tumour metastasis to the liver than women who have never been pregnant.
By investigating ring currents, a six-porphyrin nanoring molecule is shown to be antiaromatic in its 4+ oxidation state and aromatic in its 6+ oxidation state.
The 1S–2S transition in magnetically trapped atoms of antihydrogen is observed, and its frequency is shown to be consistent with that expected for hydrogen.