Although this paper attributes variations in the record of explosive volcanism largely to under-recording, we recognise at the outset that interpretations are confounded by the possibility of non-stationarity in rates of volcanism.
In the first stage, a technical efficiency score was calculated, whereas in the second stage a stochastic frontier analysis was used to attribute variation in efficiency scores of three sources: temporal, ownership and noise component.
Some authors attributed variation in mtDNA in human blood cells to variation in platelets (Banas et al. 2004; Cossarizza et al. 2003).
SCM improves the ability of SAVA or traditional disease mapping Bayesian techniques in terms of inference; however, because of the nature of ecologic studies, caution is still needed when attributing variation to a specific cause.
As travel speed can be viewed as a behavioural attribute, variations in travel speed can be analyzed from energy optimization theory.
These discrepancies are likely attributed variations in the route of administration.
The authors attributed variations in the guidelines to differences in the purposes of the guidelines, differences in local health care systems, and the primary use of expert opinion rather than research evidence for guideline development [ 17].
A Department for Work and Pensions spokeswoman criticised the report and said it makes a huge leap in attributing local variation in work capability assessment outcomes to "bias".
Moissinac attributes the variations to deadlines and technology differences in the phones.
