As exemplified by the ongoing and concurrent shifts of the white-footed mouse and black-legged tick in Southern Québec, environmental change is considered as the main driver of the shifts in the distribution of vectors and hosts, and hence of disease emergence (Gould and Higgs 2009).
Author and journalist Alyssa Katz, in her new book The Influence Machine, charts the history and measures the power of one of the leading drivers of this shift, the U.S. Chamber of Commerce, which she calls the "single most influential organization in American politics" (as would anybody else writing a book on it).
Facebook's new privacy policies which favor more public sharing, will be a big driver of this shift, as will the continued adoption of Twitter, which by its very design makes personal utterances public.
Mr. Obama pointed to some of the familiar political drivers of this shift — weaker unions and tax cuts at the top.
Many children still use a computer (69%) or a laptop (34%) to access the internet, however mobile phones and smartphones play an increasingly important role (52%), with children and adolescents being the main drivers of this shift.
Specifically, betel/areca consumption among Asia-born populations is suspected to be a primary driver of the observed geographical shift in incidence from urban cores to suburban neighbourhoods.
So that's what he sees as one of the biggest drivers of the tectonic shift at the enterprise level, and it's creating a new, exciting generation of dynamic companies.
In other words, the primary driver of the cost explosion is the shift to expensive and difficult-to-extract unconventionals due to the peak and plateau in conventional oil production since 2005.
Along with improving economic conditions, another driver will be the shift of funds from the U.S. on to Europe and emerging markets.
When the driver moved the upper end of the shift handle, its lower end pushed or pulled the gear inside the transmission to engage or disengage it from a gear on a separate shaft.
