Generally, the tracking loop with carrier phase estimate (i.e., using a PLL) can provide more precise carrier phase and frequency estimates, but tracking only the carrier frequency using an FLL can tolerate higher user dynamics and frequency errors [16].
For fixed f c, higher user speed means higher Doppler frequency shift f D, which results in rapidly changing user channel and lower correlation between the time-slots.
Adopting a visual analytic and modelling approach using a suite of regression models we find evidence to suggest that stickiness varies across the metropolitan area and over a 24-h period wherein higher stickiness is associated with high frequency users where there is substantial variability of route travel times across all alternatives.
Disagreements were observed among moderate and high frequency users, probably due to high variability in the pest problems themselves.
Pasic et al. [ 7], found that using various definitions of what constitutes a high frequency user (partly on the basis of temporal patterns of use) resulted in different patient profiles.
In the first group, the high frequency users are at the same level as the average frequency users.
We labeled these risk groups: Primary Crack Users (29.2%), Cocaine and Sexual Risk (12.8%), High Poly Risk Type 2 (0.3%), Poly Drug and Sex Risk (10.9%), Primary Needle Users (24.1%), High Poly Risk Type 1 (1.4%), High Frequency Needle Users (19.8%), and High Risk Needle Users (1.6%).
High frequency service users were randomized into an intervention (n = 34) and a control (n = 26) group.
In particular, in a prospective cohort study, Houston [ 21] reported a reduction over 6 months in depressive symptoms among high frequency users of public internet support groups after controlling for initial severity of symptoms.
The research component constituted approximately half of the caseload of the ACT team whereas a non-research component provided the same intervention to high frequency users (HFUs) with other diagnoses.
