Remittances from migrant workers — a core source of earnings for many developing countries — are falling fast.
Though the bulk of the most successful YouTubers make only a minority of their money from ads shown before their videos, the 55% cut offered by Google is still a core source of income for many.
So far, the core source of expertise for these types of questions has been therapists and psychologists, or mystics, clairvoyants and gurus.
Now they must staff the newsroom throughout the Christmas period, while suffering a loss of revenue from print editions, which remain the core sources of income for all major titles.
Central Wholesale Market, a sprawling bazaar in Los Angeles' industrial core, sources produce for many of the city's trendiest restaurants.
PRX has developed iPhone apps for many public radio stations and programs, like WBUR and "This American Life," and Mr. Shapiro said apps had the potential to become a "core revenue source" for those organizations.
Google can't rely on Google Analytics as a core data source for this information, because of the simple reason that not every site runs it.
In Taiwan, the core law source for electronic medical records is the Medical Care Act, which was promulgated on November 24 , 1986
For example, HIV surveillance data are often a core data source for triangulation, so sampling frameworks, selection of participants, underreporting and non-response bias are important considerations when assessing representativeness.
Thus even though government had already sent money to most of these core sources to pay for these frontline services, we are paying again rather than risking their demise.
