Hague (2006) cabbage is also an herbaceous biennial plant that produces "heads", and it has short stem upon which is crowned with a mass of green leaves (John 1997).
These force variations on deposited material initiate the stems' growth upon which the subsequent plasma condensates get deposited and form leaf-like nanotip structures with nanoscale apex, as shown in Figure 1 schematics and scanning electron microscopy (SEM) images.
After surgery, the patient's condition deteriorated, and total compression of the brain stem occurred, upon which the patient was declared brain dead.
The concept that the renewing tissues of the body contain a small subcompartment of self-maintaining stem cells, upon which the entire tissue is dependent, is also now accepted as applicable to all renewing tissues.
During his training, he developed the bone marrow stem cell technology upon which StemCor was based.
A number of factors have been shown to have mitogenic effects on NSCs; however, it is not clear upon which cells (stem cells or their proliferative progeny) and at what point in the cell cycle these factors act (Zhao et al., 2008).
Cancer stem cells (CSCs) are generally thought to be the source upon which tumour survival and re-growth relies, following the depopulation induced by radiation or cytotoxic agents (Davis and Tannock, 2000; Milas and Hittelman, 2009).
Many species lack both stems and leaves; photosynthesis takes place instead in a highly modified, ribbonlike thallus (vegetative plant body) upon which flowering and leaf-bearing secondary shoots sometimes develop.
"We find this to be an absolutely bizarre bill because the presumption upon which it is based is flawed," said Dr. John Gearhart, director of the stem-cell program at Johns Hopkins University.
My colleague Stephen Castle, reporting on the latest grim jobless figures from the eurozone — yet another record — describes Thursday's E.C.B. meeting as "a gathering upon which many hopes have been pinned for a decisive new intervention to stem the crisis".
