Wikipedia, however, uses the https protocol for secure communication, which means that providers have difficulty blocking individual articles.
Carriers in the United States could have more difficulty blocking VoIP services as they introduce 4G data networks, faster than 3G.
They have said, for example, that Napster would have difficulty blocking some songs without blocking other songs with similar names; and they said the process could slow the service to the point of making it unworkable.
Participants also underwent a purely behavioral Go/Nogo task, which included a manipulation of inhibition difficulty (blocks with 50 vs. 80% go-trials) and a Change-signal task that required switching to an alternative response.
The parklet, which is set to take over nearly four parking spaces in the 200 block of North Brand Boulevard, roughly across the street from the Alex Theatre, was supposed to be constructed in July, but a technical difficulty blocked a $20,000 grant for the project from entering the city's coffers.
Thus, because the differentiation we observed was greater in "HARD -labeled blocks tHARD -labeled-lablocksblocks for parthanpants who were hinhEASY -labeledivEASY -labeleds fitting that these same participants also showed the greatest performance blocksts form being told a low-difficulty block would be "HARD".
A medium effect size was observed for the main effect of actual difficulty in the putamen, F = 2.31, p =.146, ηp =.108, with greater feedback-related activation for high-difficulty blocks than for low-difficulty blocks.
The behavioral effect may have been absent for high-difficulty blocks because performance was objectively more difficult to improve.
No such difference was observed for the high-difficulty blocks, t(19) < 0.01, p =.997 (two-tailed).
The performance differences for low-difficulty blocks emerged during the final trials of each block, as depicted in the Fig. 2b.
T-tests that focused on the percentage of correct responses during trials 9 12 exhibited the same pattern of results as the original analysis: For low-difficulty blocks, participants performed significantly better on "HARD"- than "EASY -labeled blocks, t(19) = 2.303, p =.033, but for high-difficulty blocks, thEASY -labeledn did not hold, t = 0.570, p =.575.
