The colour of cell cultures turned from green to yellow during cultivation, indicating nitrogen sources were naturally exhausted (data not shown).
By reading this "digital exhaust" of data they hope to create "digital phenotypes" and understand how people are behaving around guns, when and why.
On a Verizon Droid Razr, for instance, I streamed about 12 minutes of YouTube videos, checked my Facebook feed and read about a half-hour's worth of news articles, and 3G Watchdog told me that at my current daily rate I would exhaust my data plan four days before the end of my monthly billing cycle.
Soot production has been studied as well, using both exhaust soot data and high-speed imaging of the in-cylinder natural luminosity.
My main problem in writing the book was not deciding what to present, but what to leave out; I could easily have made it three times longer without even beginning to exhaust the data.
'Other gases and vapours', predominantly car exhaust deaths (data not presented), decreased slightly from the first to last periods, but this concealed a substantial increase between 1981 1985 and 1986 19901990, followed by a decrease in 1996 199999.
Vermeulen et al. (2014) published a meta-analysis of the risk of lung cancer from exposure to diesel exhaust using data from three case control studies two of workers in the trucking industry (Garshick et al. 2012; Steenland et al. 1998) and one of workers in the mining industry (Silverman et al. 2012).
Data exhaust also includes transactional data (e.g., banking records and credit card history) and usage data (e.g., access logs).
Although it is not uncommon in the clinic setting to hear patient complaints about the difficulty of getting refills if eye drop bottles are prematurely exhausted, no data exists in the literature regarding the prevalence of this phenomenon.
