One way to track the solar cycle is by counting the number of sunspots, which are dark, cooler patches on the Sun’s surface.

Cyclic peptides derived from flaxseed, commonly known as cyclolinopeptides or linusorbs, represent a unique class of naturally occurring bioactive compounds. Their cyclic structure confers enhanced ...

Researchers present the first evidence of 12-hour cycles of gene activity in the human brain. The study also reveals that some of those 12-hour rhythms are missing or altered in the postmortem brains ...

Annual phytoplankton successions in a coastal area in the northern Baltic / R. Hobro -- Fluctuations in the abundance of phytoplankton on the California coast / S. Tont and T. Platt -- The annual ...

Researchers at the University of Pittsburgh School of Medicine, U.S. present the first evidence of 12-hour cycles of gene activity in the human brain. Publishing in the open access journal PLOS ...