Our modeled system comprises three different compartments: two different coupled tumor cell subpopulations, competing for space and resources (oxygen), corresponding to the two dominant phenotypes, normoxic C n and hypoxic C h, well described in GBM (DeBerardinis et al. 2007; Giese et al. 2003; Keunen et al. 2011; Onishi et al. 2011).
Minerals containing food plants are of prime concern as these plants contain the prime resource of essential elements (without hydrogen and oxygen) in the human nutrition [ 1].
They are parallel to approaches for understanding and limiting the abilities of pathogens to establish niches that allow them preferential access to resources (such as oxygen and glucose) and protection from threats (such as circulating immune cells).
Those more frequently invoked are (a) sediment grain size and substrate heterogeneity, (b) productivity, organic content or microbial features, (c) food resources, (d) oxygen availability, (e) current regimes, and (f) catastrophic disturbances [4], [225] (see Text S1 for more references).
For example, in many areas of the world, human resources and equipment and supplies, such as antimicrobials, fluids and oxygen, are lacking or sporadically available.
In the Overgrowth phase, tumor cells grow outside the basement membrane of the tissue compartment in which they originated due to increasing scarcity of essential resources, such as oxygen and glucose, that are necessary for further growth and cell division.
The ice could prove a valuable resource to future explorers, not only drinking water but also, when the water molecules are broken apart, hydrogen and oxygen.
Ice, if present, could provide a useful resource for astronauts, for water as well as for fuel if the water is broken down into hydrogen and oxygen.
The ice could prove a valuable resource to future explorers, not only as drinking water but also, when the water molecules are broken apart, hydrogen and oxygen.
Aren't people like the Dutch, among the tallest populations on earth, with an average male height of over six feet, really the human equivalents of S.U.V.'s, barreling heedlessly along, sucking up more than their fair share of precious resources like oxygen?
