But city rules say that sole-source procurement -- when the city hands a contract to a single bidder -- can be used only when there is no other option.
This argues against the possibility that the sole source of IFN-γ, GM-CSF, and TNF-α was cells that had not gained Foxp3 expression.
SEARCH FOR THE SOURCE -- Can it be that the sole source of the contamination was the Daschle letter, whose contents have been described as potent, pure and deadly?
Didn't the fact that the sole source for the story was someone who had translated an avowedly biased blog written in Farsi by students in opposition to the Iranian government give him or any other ZDNet editor pause?
We also do not consider the auxin flow from the shoot (1) to the epidermal layers, so that the sole source of the auxin to the epidermal layers is the transverse diffusion from the adjacent provascular layers j ∈ {3, M -2}.
It was previously thought that Golgi cells, interneurons that are the sole source of inhibition onto granule cells, were exclusively coupled via gap junctions.
Set on a desert planet named Arrakis that is the sole source of the universe's most valued substance, "Dune" is an epic of political betrayal, ecological brinkmanship, and messianic deliverance.
Sewage flows into streams and the underground aquifer that is the sole source of drinking water for the Palestinian population; solid waste is burned, creating air pollution and contaminating the soil, making it useless for crops.
As our producers succeed, we would become increasingly energy self-sufficient, keep a lot more dollars at home for our Treasury, stimulate innovation on renewables and drive down the global oil price that is the sole source sustaining Iran and other petro-dictators.
Until 2001, many wealthy Americans were willing to pay up to $100,000 for the G-wagen to a small New Mexico import firm called Europa International that was the sole source of the vehicle in the States.
