In this kind of system, it is difficult to allocate energy for the two sectors in a way to maximally satisfy everybody.
However, mixed singers occur in the hybridisation zone and elsewhere, and can be difficult to allocate to species.
In particular, relationships matter [ 26, 27] - and the nature of the relationships and the demonstrated willingness and capacity to listen may be difficult to allocate to intervention sites.
The practices were the units of randomisation, since it would have been difficult to allocate two patients in the same practice to different arms of the trial.
It may be difficult to allocate additional resources required to efficiently incorporate and understand omics data, but it is important for programs and agencies to focus on these needs and to ensure that adequate funds and people are brought to bear on this need.
Because the patients included in the study are difficult to engage, they will be allocated randomly over the two conditions without asking informed consent.
Although actual expenditures are difficult to track, the WES budget allocated to software (approximately 10 per cent of the total) seems low for an organisation that states that it is shifting more towards social aspects in its policy and strategies.
Whether those costs ― which are difficult to parse, as the defense budget is not structured geographically ― can reasonably be allocated as NATO-related is debatable.
There was uncertainty in cost estimates in Year 1 that may affect the comparison with Year 2. As discussed in the paper describing Year 1 [ 28], it is difficult to accurately allocate the fixed costs between first clinics and second clinics during Year 1 due to the limited available data.
"Where voice, data and video are interchangeable, it's very difficult to allocate cost to one service or another," he says.
