Those events can be as ephemeral as changes in the prices of securities or commodities from which the contracts are derived -- hence the name -- or as concrete as weather changes (which Enron turned into a booming business).
This phenomenon of the fast but ephemeral change from large emigration to positive net migration was observed in many countries of origin of emigrants during the climax of the economic crisis.
The diversity of vegetation in semi-arid, ephemeral wetlands is determined by niche availability and species competition, both of which are influenced by changes in water availability and salinity.
The concept resembles "Live Stories", a feature introduced in 2014 by ephemeral messaging app Snapchat.
The ripples are ephemeral and a change in wind direction causes them to reorganise.
Yet, we can envision a way to permanently record the ephemeral epigenetic adaptive change in the genome, although the explanation stays speculative.
Progressive changes in the geochemistry of eruptive products can be explained by mixing between ephemeral and poorly connected volumes of broadly EVZ-like alkalic basalt typical of Iceland's Vestmannaeyjar, with primitive ridge-like basalt formed at the propagating ridge tip.
Now being exposed once more, thanks to more recent changes in the route of River Severn, they are the most ephemeral traces of humanity imaginable.
Compiled by Ms. Lippard, a pioneering feminist writer and curator, and published in 1973, the book remains a founding document of a hugely influential kind of art that emerged from an era of social upheaval and that spurred far-reaching changes in thinking about what art could be — meaning, among other things, unheroic, non-Western, female, ephemeral.
Whilst change in flow metrics are mostly consistent with rainfall change factors, changes in low flow (e.g. 7-day minimum flow) show considerable uncertainty, especially for drier, ephemeral catchments.
