The fuzziness of these sources stems from the uncertain, complex and dynamic environments and decision factors in it [9, 10].
The first source stemmed from using a single water sample (taken at a single time point) to characterize fluctuating PCE levels.
It is currently unclear where the natural abundance carbon source stems from; however, repeated expression gave the same result and further studies are required to investigate whether HicA(H24A) is having other unforeseen effects on E. coli metabolism.
Weak electromagnetic fields, occurring naturally in our environment and present since the beginning of Earth, are progressively being complemented by numerous artificial sources, stemming mainly from the requirements of our modern lifestyle.
"Dredging up thinly sourced allegations stemming from Mr. Cain's tenure as the Chief Executive Officer at the National Restaurant Association in the 1990s, political trade press are now casting aspersions on his character and spreading rumors that never stood up to the facts," Mr. Gordon said in the e-mail.
These sources included challenges stemming from parental disagreement where the infant's mother wanted to practice an unsafe sleep behavior while the male caregiver did not.
Such evaluation is important, because there is often a tradeoff between these two sources of error, stemming from the fact that simpler models with fewer parameters (such as JC) have smaller stochastic noise at the expense of greater estimation bias.
Traditional rulers posed a potential source of unrest, stemming from resentment over Parliament's rejection (in November 2010) of the Western Regional House of Chiefs' demand that 10% of the country's new oil revenue be earmarked for their region.
Penguins have long been associated with the open-source OS Linux, stemming from Linus Torvalds's decision to use one as Linux's mascot (he's named Tux, and you can see him here).
For the third source of inconsistency, stemming from the measurement of life-time earnings of the second generation, we have to rely on the usual assumption of association between annual and life-time earnings described above.
