"We do not know how long hydraulic fracture chemicals persist in produced water or at what concentrations or how these change in time, which means that hazardous levels of contaminants … cannot be ruled out".
"We do not know how long hydraulic fracture chemicals persist in produced water or at what concentrations or how these change in time, which means that hazardous levels of contaminants … cannot be ruled out". -- About one-third of the oil field wastewater pits in the Central Valley are operating without proper permits.
Yet he persists in producing one surprising, punchy, near-perfect composition after another.
Although Mr. Frank persists in producing unsettling work, he has a mind and an eye that have a way of being unusually prescient and perceptive about his life and times.
Such a "memorial epigenetic" signature was observed earlier in iPS cells derived by factor-based reprogramming from different tissues [ 43, 44]; as it was shown that methylation marks specific for the original cells could still persist in the produced iPS.
A few B cells persist in XLA patients, producing a small amount of IgG in some patients [ 13].
In this cutaneous malignancy, the tumour cells home to and persist in the skin, producing a broad spectrum of clinical entities.
I just saw a fantastic footballer and luckily they listened to my opinion......".. Yet we in England still persist in attempting to produce players with an emphasis on physical ability rather than football/skills ability.
Some of these abnormalities may persist in differentiated cells produced from the iPSCs; some may be selected against by repetitive passaging.
The relatively few studies on pteridophyte gametophyte ecology have shown that in some lineages this generation occupies different (often broader) ecological niches than the sporophyte generation [2] [5], and in extreme cases may persist without producing sporophytes at all as 'independent gametophytes' [6].
In wounds healing by secondary intention, myofibroblasts persist in the granulation tissue producing collagen and mediating wound contraction [ 3].
