Sentence examples for been problematic to resolve from inspiring English sources

Movement dynamics of large pelagic species have been problematic to resolve in modern assessments, and electronic tags offer new opportunities to resolve some of these issues.

The results of our study suggest that the use of mt genes may help inform some of the phylogenetic relationships that thus far have been problematic to resolve, as suggested by Turmel et al. (2013).

The deepest splits in the placental mammalian tree have been particularly problematic to resolve (Churakov et al. 2009; Nishihara et al. 2009; Hallström and Janke 2010).

Thirdly, it may be problematic to adjust tidal volume to body weight in the presence of fibrosis-induced weight loss, but this issue has not been resolved experimentally to our knowledge.

It was problematic to say the least.

These splits are remarkably close to each other and would prove problematic to resolve even from recent species.

However, both can be problematic for resolving deep phylogenetic relationships.

The relationships among the families of lemurs have been problematic and have yet to be definitively resolved.

Here, amino acids are classified into three groups: first, essential amino acids, which are essential to nutrition; second, functional amino acids, recently found to be important in the promotion of physiological functions; and third, dipeptides, which are used to resolve problematic features of specific free amino acids, such as their instability or insolubility.

Our New Guinean species clades are all problematic and to resolve the conflict DNA is needed from specimens that have accurate morphological identifications.

Most of the methods that have been proposed to resolve this problem require diffusion magnetic resonance imaging (MRI) data that comprise large numbers of angles and high b-values, making them problematic for routine clinical imaging and many scientific studies.