However, a slight offset between the periods of the temperature and LED modulations lends to the possibility that the effect is a chance observation of the two sinusoids at an unfortunate point in their beat cycle. (stsci.edu)
His group defined a functional niche for B cells (around sinusoids in the bone marrow), identified the first two mutants that abrogate marginal zone B lymphocyte development, developed the concept of a follicular versus marginal zone B lymphoid cell - fate decision, and discovered two new defined stages of peripheral B cell development, the marginal zone precursor (MZP) B cell, and the Follicular type II B cell. (ragoninstitute.org)
I've recently created a new wavelet program which includes multiple harmonics (not just a single sinusoid). (tamino.wordpress.com)