The population fluctuations of rodents have attracted much attention, and, perhaps correctly, studies have focussed on the ecological parameters of these fluctuations; for example, it has been demonstrated in the laboratory that certain behavioral mechanisms involving odours exercise profound control over the reproduction and population levels of rodents.
Tiny temperature fluctuations, for example, occasionally trigger false alarms.
Standard contracts and those not involving so-called "commercial end users" -- firms like Coca-Cola and General Electric that use derivatives as insurance against currency and interest-rate fluctuations, for example -- will be required to go through these clearinghouses.
Alternatively, one can add as a third dimension an individual state that better reflects more rapid environmental fluctuations: for example, a condition factor responds to both temperature and changes in feeding conditions and is thus an obvious candidate.
Genes present in only a few strains of a species have been described as "accessory or adaptive", since they do not appear to be essential for cell survival, but instead provide the possibility to adapt to environmental fluctuations (for example, use different nutrients) [ 5].
The implication here is that climbing the barrier requires some rotation or rotational fluctuation, as, for example, discussed for Pi release (16).
Such sensors can measure fluctuations in for example, magnetic and electric fields, pressure changes, and acoustics.
The prevalence of the free market ideology, despite the pitfalls in classical economic theory and the wide fluctuations that, for example, financial markets engender, cannot be fully grasped if the political dimension is not taken into account.
The periodicity and homogeneity of the standard up and down states disappears, yielding either irregular fluctuations (induced for example by noise or respiration if in vivo), or high frequencies that blur the transitions (especially in the down states initiation).
Intrinsic noise (noise arising from the system itself) has its origin in molecular fluctuations due, for example, to slight modifications in temperature, and in random events due to sampling, given that the number of molecules is not infinite during transcription and translation [16], [19], [14].
