Coal was mined in Roman times, and the coal trade between London and the Tyne, centred on Newcastle, expanded rapidly from the 13th century.
The expanding fishing industry, centred on the eastern port city of Sfax, also contributes to the country's exports.
Baddeley [ 17], Regehr and Norman [ 18], and Gardiner [ 19] have much to say about the importance of the characteristics of practice and reinforcement including distributed, expanding, elaborative rehearsal centred on recall, not recognition or re-presentation of content.
The researcher's feedback generally centred on either encouraging the students to expand their story by adding pertinent details or helping students narrow the focus of their stories, sticking to one main narrative thread.
Yet, the thinking so far has been majorly centred on accreditation with expressed interest to expand to other complementary quality-enhancing initiatives.
The contraction in Italy was centred on the service sector, as manufacturing output expanded.
Some voices within the Syrian opposition suggested that such attacks could occur again as part of a regime push to expand a safe-zone centred on Damascus.
A winter-sports industry in the Cairngorm Mountains, centred on the town of Aviemore, has developed and expanded rapidly since World War II.
Expanded drilling around a vast area of lakes, rivers and marshes centred on Teshekpuk Lake is also planned.
The XMM-Newton images reveal an expanding X-ray halo around GRB 031203, in the form of two concentric rings centred on the afterglow position.
