Last year, a spectrometer on board the European Space Agency's Mars Express spacecraft detected methane in regions where there also appears to be sub-surface ice (ScienceNOW, 29 September 2004,).
A very noticeable and, to our knowledge, previously unknown phenomenon was the onset of an increase of τ before the cells had completely covered the surface (were sub-confluent).
have proved to be successful sub-surface investigation and characterisation tools with Ground-Penetrating Radar (GPR) being particularly popular.
The virus is sub-classified based on its surface glycoproteins, hemaglutinin and neuroaminidase, which confer the pathogenicity [ 1, 3- 6].
There are two sub-surface horizons which are referred to as, top lignite horizon, and bottom lignite horizon.
Soil pollution decreased with the increased depth of installed drippers, as could be observed from the sub surface drip technique.
Oh Spouse, Your hard hat leaks a surfeit Of lamp rays that's wasted sub-surface.
The surface initiated ring/cone cracks circumscribe the contact area, whereas the lateral cracks are horizontal sub-surface cracks.
The two most contaminated sites were a sub-surface drain in the Hex River Valley and a dam in Grabouw, with 0.83 +/- 1.0 microg/L (n = 21) and 3.16 +/- 3.5 microg/L (n = 13) average endosulfan levels respectively.
The least level of total and fecal coliform were in sub-surface drip irrigation at the depth of 30 cm in condition of municipal wastewater reuse.
Prof Mustard himself prefers the idea that many of the clays were produced sub-surface at Mars, where warm water could interact with rocks for long periods - such as in hydrothermal systems.
