Instead of rendering one 3-D world to a single monitor, as in a typical first-person video game, such as Call of Duty, the computer renders the same 3-D world twice, from slightly different angles.
In contrast, a single monitor operated by the United States Embassy in downtown Beijing, where traffic is heavy, consistently reports less healthy air conditions than the official index.
In "Reasons for Knocking at an Empty House," which is indebted to Mr. Acconci, a single monitor shows a man sitting in a chair.
It appears as though in certain conditions a single monitor machine actually reports itself as having three monitors.
First, ambient measurements were made at a single monitoring site in each city.
Kim et al. (2012) recently reported a significant association between EC and cardiovascular hospitalizations, and a nonsignificant positive association with respiratory hospitalizations, based on constituent data from a single monitoring station in Denver, Colorado.
Third, our analysis of the association with short-term changes in ambient pollutants was based on pollutant levels measured at a single monitoring site, potentially resulting in some exposure misclassification.
COR brings together the municipality's 30 departments and private suppliers in a single monitoring room.
This creates a dilemma because in our analysis 94 different variables were measured (Fig. 2), all of which would be impossible to include in a single monitoring program.
Limitations of this study include the use of a single monitoring site, which may introduce errors in exposure measurements and lack of representativeness for exposures to certain local sources (e.g., traffic) in the analysis of components and mortality.
