Sentence examples for onset approach from inspiring English sources

With the year of onset approach used in most MS studies, the McDonald's diagnostic criteria may cause a catch-up effect (by the use of magnetic resonance imaging) on prevalence and incidence retrospectively.

Close examination of each quiescent interval reveals a subtle growth in background activity that commences about 30 s prior to avalanche, and that this activity has spectral energy that initially extends to ∼20 Hz, but drops to lower frequencies as onset approaches, forming a characteristic "down-chirp" in the spectrogram of Fig. 9(b).

This increase is rather gradual initially, but becomes more rapid as onset approaches.

The average F value of 0.68 in the predominant variant is still slightly worse than the common onset detection approach based on the original signal.

The baseline onset detection approach we use in our study consists of seven steps illustrated in Fig. 4. The corresponding parameters, used for the optimization, are shown in parentheses.

Table 2 Parameters and their ranges of interest for the classical onset detection approach Parameter name Minimum value Maximum value Frame size M 210 212 Hop size h 400 1600 γ 0.01 20 α 0 1 λ 0 1 δ 0 10 l T 0 s 0.5 s r T 0 s 0.5 s l O 0 s 0.25 s r O 0 s 0.25 s τ −0.025 s 0.025 s.

Note the pronounced growth in variance as the moment of seizure onset is approached.

(b) Spectrograms show characteristic "down-chirp" (drift to lower frequencies) in spectral activity as SLE onset is approached (white arrows).

It moved from one keogram to the other but appeared to stall in its motion as the nominal onset time approached.

This way, we may relate the accuracy of the onset detection approaches considered and the effort required to correct the errors committed, either manually or within an interactive scheme.

Although their findings, like ours, need to be replicated in larger longitudinal studies, it is quite possible that pathological processes early in the presymptomatic stage cause dynamic changes in the volume of affected structures, which alter in terms of the direction of change as symptom onset is approached.