Measure your own, current orientation and motivations (this is suggested by someone with some difficulty with measuring elevation itself).
An important difficulty with measuring enhancing brain tumors on MRI is that there is no quantitative cutoff for tissue enhancement on MRI.
However, the main difficulty with measuring most sulfated steroids lies with the lack of availability of appropriate reference standards, making measurements impossible to accurately quantify.
Randomised trials, in education could suffer due to difficulty with standardising the educational intervention(s), contamination between the two arms of a study, inability to blind the study participants and the teachers from the educational intervention(s) leading to selective co intervention, and finally difficulty with measuring outcomes due to the lack of valid and reliable assessment tools.
In this work, the difficulties associated with measuring these time distributions are highlighted.
Second, we found no significant effect in the nucleus accumbens, an area that plays a critical role in addiction, but this effect may have been due to technical difficulties associated with measuring fMRI data in that region.
Similar difficulties arise with measuring how hurricane-force winds interact with a building.
Studies of blood perfusion in OM lesions are, however, scarce, probably because of the difficulties involved with measuring perfusion within the bone.
Results provide insight into the potential and implications of active learning strategies as a means of engaging students in the learning process and the inherent difficulties associated with measuring impact on student learning.
In order to overcome the methodological difficulties associated with measuring both the radiation pattern and the HRTF of bat species, we use recently developed simulation methods [18] in combination with morphological data of complete bat heads obtained by microCT [19].
