Channel 4 said that despite "outperforming competitors in recent years" its economic model was being "continuously undermined by increased competition and a structural shift in advertising revenues from TV to online".
In announcing the changes, Mr. Wagoner said $4-a-gallon gas prices had forced a "structural shift" by American consumers away from large vehicles into more fuel-efficient cars.
WWF says the decline in business flights is part of a structural shift by businesses, unconnected to the recession, as they move to embrace video-conferencing and save money.
The restructure announced on Wednesday underlines a structural shift towards digital as the newsroom structure is overhauled to focus on the websites.
"The Philippines' economic performance has entered a structural shift to higher growth, accompanied by low inflation," Moody's said in a news release.
As a result, Beijing has found itself fighting on two very different fronts at the same time: the severe short-term problems posed by the stimulus programme and the long-term imperative of a structural shift.
A detailed structure of protofibrils has not been determined; they are defined primarily by morphology, the ability to bind dyes such as ThT and a structural shift to a predominance of β-sheet.
Douglas McCabe, chief executive at Enders Analysis, said: "Print advertising is going through a structural shift, a hugely significant shift, because of decisions made by major advertisers such as retailers and supermarkets.
Executives said Lenovo had benefited from a structural shift in the smartphone business, where the high end, dominated by Apple and Samsung Electronics, is showing signs of saturation.
Investment bank revenue and profitability have been hit hard by weak economies and tougher regulation, and many in the industry say this marks a structural shift that banks have been slow to adjust to.
