For example, word frequency: began and started (Rundell and Stock 1992); collocation: begin and start (Biber et al. 1998), of, at, from, between, through (Kennedy 1998), worry, and bother (Lu and Ahrens 2006); genre: sure and certain in spoken and written texts (Summers 1993); register: big, large, and great in academic proses and fictions (Biber et al. 1998).
Analyses on drinking frequency began with the 1988 questionnaire in NHS and 1986 questionnaire in HPFS when participants were first asked the usual number of days when alcohol was consumed in a typical week.
It looks like AT&T customers are finally (just 7 months late!) getting an easy, subsidized way to get a Samsung Nexus S that plays friendly with the right 3G frequencies: beginning on July 24th (with pre-orders going up today), the handset will be going for $99 on a 2-year contract exclusively at Best Buy.
At this juncture, the responses elicited by the three frequencies began to decline.
HCC-specific modulation frequencies began to hinder cell proliferation after 7 days of exposure and the anti-proliferative effect increased over a 7-week period.
To determine when HCC-specific modulation frequencies begin to exert anti-proliferative effects on HepG2 cells, we assessed cell proliferation following 3 days (9 h) of exposure and did not find any significant difference between cells exposed to HCC-specific modulation frequencies and unexposed cells.
Within a few months of building occupancy in 1994, employees perceived new-onset respiratory conditions to be building-related and complained of a further increase in symptom severity and frequency beginning in the fall of 2000.
Above a certain frequency, (h_{s}) begins to decrease.
Indeed, while variation in the 40-ky band (obliquity) remains strong throughout the EMPT, low frequency variability begins at around 1250 1200 ky, which coincides with a progressive increase in global ice volume.
Two features are evident: the transient in the PMU output immediately after the disturbance and the rapid and false fluctuation in frequency that begins at approximately 25 s (shown in the inset of Fig. 15).
