He also reconnected with the sad and noble heart of the cello repertory, the six solo suites by Bach, which he had stopped performing after growing doubtful about his approach.
Mainstream mosque representatives were recruited in a wholesale effort to reassure doubtful populations (an approach pursued in other countries besides Nigeria) and mercifully good sense and good health both won out in the end.
Still it remains doubtful whether an approach can be found which leads to complete parameter determinability.
We note that on a genome-wide scale, it is doubtful that any approach, including direct cell type-specific expression measurements, will yield a completely unambiguous classification.
Although the recent nursing care insurance reform of 2008 laid down the legal basis for nursing homes to employ physicians, it seems doubtful whether this approach will indeed be widely adopted.
Many analysts are doubtful that the subscription approach will work for everyone — surveys suggest that few consumers are willing to pay for news online.
"I was doubtful that Evan's approach would be accepted by our curators and preservationists, who work behind walls and rarely want to be seen," said Patrick Noon, the chief curator of paintings and 20th-century sculpture who shepherded the public restoration of a 1650-era Castiglione painting of an altarpiece.
However, in longer term, it is doubtful if the ontology approach can keep up with descriptor development trends.
While it's doubtful that such an approach can be as comprehensive as a conversation between client and consultant, it is a starting point to at least get you on the road to thinking about such things, and as a free service, you have little to lose by at least trying the tool and seeing what it tells you.
Retention strategies must, however, be adapted to meet the needs of HHR working in different settings; a 'one-coat-fits-all' approach is doubtful to succeed [ 39].
