Proteins aren't just defined by their constituent amino acids — structural modifications can yield complex mixtures of protein forms. An approach that controls the addition of such modifications may help to define their role.

A long-standing mathematical model for the growth of grains in two dimensions has been generalized to three and higher dimensions. This will aid our practical understanding of certain crucial properties of materials.

Does blood formation in mammalian embryos and adults have separate origins or a common source? The most recent investigations into the question add a further chapter to this long-running story.