In 2003, 33 heads of household representing a total of 162 household members in two schistosomiasis endemic villages, Xinlong 7 and Xinming 3, were randomly selected to participate in a pre-biogas questionnaire to profile their current energy usage, and to assess, using multiple measures, the perceived value of implementing biogas in their homes.
Future clinical trials need to measure not only health outcomes, but also implementation, acceptability, and usage aspects to assess adverse effects on currently recommended best practices, in order to mitigate these risks and potentially reverse them.
"Clearly we need more studies of long-term cell phone usage to better assess the cancer risks," says coauthor Michael Carlberg.
In this instance, with the FaceTime app already preloaded on tens of millions of AT&T customers' iPhones, there was no way for our engineers to effectively model usage, and thus to assess network impact.
Since oral contraceptive users reported multiple episodes of usage, determining how to assess a series of pill preparations was complex.
We will record website usage in order to assess engagement with the intervention (and whether this appears to be related to outcomes).
The aim of this study was to assess usage patterns of ecigarettes, reasons for use, and users' opinions of these products.
Earlier this month, the F.D.A. and N.I.H. also announced they were starting a $118 million study to track about 44,000 people over five years to assess usage trends, risk perception, quit-smoking attempts and the possible impact of new tobacco regulations.
The likes of Kabbage and OnDeck hoover up information, on everything from social-media reviews to companies' usage of logistics firms, to assess how well small businesses are doing.
We next employed click chemistry detection to assess usage and distribution of PC in Plasmodium EEFs at different time points after infection (see Experimental Procedures; Figure S4).
