However, when this cycle is combined with the solar or annual cycle, we find value added.
These fluctuations generated for an adequate regular interval when analyzed (Harmonic analysis; Hydrology Project 2000) for a reasonably long period may show a varied cycle, for instance hourly cycle, six hourly cycle, daily cycle, fortnightly cycle, monthly cycle or annual cycle, etc.
An identified spectral peak (i.e., a daily or annual cycle) can be used to compute hair growth rate; hence we then have an absolute time scale.
DOI: http://dx.doi.org/10.7554/eLife.09991.002 Adaptation to environmental cycles including daily, tidal, lunar, or annual cycles over millions of years, has enabled marine organisms to synchronize many aspects of their biology, thereby creating important biological rhythms for coping with a variable world (Tessmar-Raible et al., 2011).
Dengue incidence rates in Cali do not exhibit strong seasonal or annual cycles, but when outbreaks occur, incidence rates have a tendency to increase during the latter one-half of a warm-dry season, when the diurnal temperature range is large, and then decrease as the subsequent cooler-wet season begins.
The company seems to be sticking to a more or less annual cycle with its major OS releases in recent years, so if they stick to that, we'll know more about what's definitely coming in 10.9 by WWDC in June, if not before.
Examining the plot Y versus time t, that is, Y i versus i, it may show a nonzero mean, a trend over time, or an obvious annual cycle.
These analyses identify significant temporal scales (i.e., defined here as periods whose associated wavelet power is statistically significant for at least two continuous years; Figure 4) over time for a given variable, such as 2-year cycles or annual seasonal cycles of dengue transmission.
Whether the pigment composition of the target algae changes over an annual cycle or whether the same reference pattern can be used over the course of a whole year has to be established for each site and algae separately.
However, the results from the present analysis do not readily indicate strong connections in streamflow dynamics between successive/different years (as a result of "annual cycle") or between distant years (as a result of the influence of large-scale climate patterns and long-term evolution, including decadal cycles).
For ecosystems with one or more annual cycles of vegetation activity, we provide estimates, with uncertainties, for the start of the "greenness rising" and end of the "greenness falling" stages.
