Previous studies suggest that economic difficulties exist at all income levels, even among affluent employed populations [ 74, 75], and have adverse effects on sleep [ 7], and other behaviours [ 75] after other socioeconomic circumstances are taken into account.
The article concludes, that this approach has a huge potential, although some difficulties exist, relating to the challenge of maintaining a focus on the landscape when using a form of communication which is dialogue-based and relatively unstructured compared to approaches embedded within conventional learning environments.
This difficulty does not exist to the same extent in fractures of the upper extremity produced by direct injury, since the ties in this limb are less bulky and tense than in the leg, and, from the nature of things, spiral or torsion fractures are of comparatively rare occurrence in the humerus, radius or ulna, though they are not infrequent in the metacarpals.
Several technical and methodological difficulties exist for investigators to unravel this process in myelinated axons – a complex two-cell unit.
However, some difficulties exist with access to ongoing professional development opportunities, particularly for staff in rural and remote areas and those not enrolled in a formal programme of study.
Similar difficulties exist with respect to the monitoring of the requirement of "actively seeking employment".
However, significant difficulties exist with regard to research into the process of PGC specification in vivo.
Difficulties exist with regard to transportation, communications, equipment, facility infrastructure, medication supply lines, affordability and availability of skilled healthcare providers.
Respondents indicated that difficulties exist with regard to identifying those older people who would benefit from early detection and intervention most.
Difficulties exist from data acquisition to applicability of Darcy's law and solution techniques that are applicable only to conventional reservoirs.
