To constrain the age of the phytoliths, the researchers developed new ways of isolating rice phytoliths from carbon sources, such as clays and carbonate, and dated the samples directly using radiocarbon dating.
Graceful, wise, and affecting, The Mothers is a beautiful exploration of community, and how its ties can both constrain and comfort.
BBC News –Scientists think they have found a smart way to constrain carbon dioxide emissions - just turn them to stone.
Higher borrowing costs are also likely to constrain consumption given household debt at more than 80 per cent of GDP.
The old forms of sexism, while greatly diminished, still constrain women.
Luxury realtors in Hong Kong have long hoped that the luxury home market, which has stalled since the Hong Kong government implemented higher stamp duties to constrain a runaway housing prices, would breathe life again.
