Over this year-and-one-half you have had two brief episodes of atrial fibrillation, which converted spontaneously.

Similarly, antithrombin can also spontaneously convert to the latent state as part of its normal function.

Polymorphs have different stabilities and may spontaneously convert from a metastable form (unstable form) to the stable form at a particular temperature.

Because it spontaneously converts to Am, Pu can be extracted and may be used to generate further Am.

A perpetual motion machine of the second kind spontaneously converts thermal energy into mechanical work.

In both the WO-1 and 3153A strains, the different phases convert spontaneously to the other(s) at a low frequency.

Isomers usually have substantially different chemical properties, may be isolated and do not spontaneously convert to each other.

The aldehyde then spontaneously converts to the corresponding Schiff base, Δ-piperideine.

For example, they can spontaneously convert a prepared spell in order to summon an animal that will serve as a temporary but loyal ally.

At room temperature, it spontaneously converts into the form-I with the melting point of 135 C and density of 0.95 g/cm.