For realistic simulation of contaminants' transport in an estuary, the presence of multiple sources and circulation of pollutants returning upstream of the discharge point should be considered.
We identified two broad but distinct spatial entities in the distribution of Badegoulian sites based on lithic raw material sources and circulation, and found that these spatial units share a similar ecological niche.
Tradition is at once a mine and a kind of currency, the source and the circulation of the values it makes and preserves.
The disparity may be due to varied hydrological conditions (under a changing climate) including sources and atmospheric circulation of moisture (Taupin et al. 2000).
In 1986, after a scathing federal antipornography report, Penthouse was withdrawn from many newsstands and circulation revenues — a major source of income — fell sharply.
These include the sources and timing of recharge, retention time and circulation of groundwater (Kortelainen 2009).
We noted their topic and assessed their news sources and coverage by newspaper title, ranked title, and circulation, as described above.
Microbial metabolites from both the normal gut microbiota and infection sources enter the circulation and can enhance or reduce the inflammatory response.
Looming changes include (a) depletion of relatively stable water sources (cryosphere; Khromova et al. 2014), (b) an already unstable water source (atmospheric circulation) becoming even more variable (Schubert et al. 2014), and (c) a longer and warmer period for vegetation growth ("greening") increasing the biospheric water demand (Park et al. 2016).
But let's face it: newspapers have been unable to stop readers from moving to the Internet — even though that eliminates circulation as a revenue source and lowers advertising revenue.
