Instantaneous activity levels are much more tightly tied to RNA and protein (particularly enzymatic proteins).
Despite of variation in the catalyst concentration the optimal profile is practically the same because the decay rate is affected only by instantaneous activity of catalyst.
This task now arises in a range of applications such as healthcare monitoring, fitness tracking or user-adaptive systems, where a general model capable of instantaneous activity recognition of an arbitrary user is needed.
We first describe the algorithms which generate descriptions of an agent's instantaneous activity.
We will expand on our recent finding that the instantaneous activity of saccade-related cells in the SC faithfully reflects the instantaneous displacement of the eye in the direction of the planned saccade vector (Goossens and Van Opstal 2006).
The experiments described in Goossens and Van Opstal (2006) suggested that the deep layers of the SC are involved in programming a saccadic motor command, and hence that the instantaneous activity (quantified by the cumulative number of spikes) relates linearly to the instantaneous eye displacement along the saccade trajectory (Eq. 10; Fig. 12).
As mentioned before, we should not put (varvec{mu}_{t} = 0), because the changes in fMRI signals are trigged by instantaneous neural activity which is known as the hrf.
A plot of the ratio C tis(t)/C bl(t) against the ratio of cumulative to instantaneous blood activity concentration ("normalized time") became linear in the late phase after the tracer injection when the concentration of free (i.e., unmetabolized) [18F]-FDG in the blood had equilibrated with that of free tracer in extravascular volume of distribution.
Instantaneous mitotic activity (M-phase) was visualized using antiserum which recognized the phosphorylated state of the H3-histone [32].
However, while wild-type animals show a steady increase in activity levels as a function of starvation duration, animals expressing the dominant negative AMPK transgene or the gamma RNAi element displayed instantaneous elevated activity levels (Figure 3B, C).
The temporal encoding is interesting, first, because neurons are, at different time points, sensitive to different features such as luminance, edges and textures; second, because the temporal evolution provides temporal constraints for deciphering the instantaneous population activity.
