Sentence examples for remains difficult to define from inspiring English sources

Wallinger has been working as an artist for 30 years, but he remains difficult to define.

Yet the role of arts and culture in our society remains difficult to define in conventional terms.

Although volumes have been written about the theory and practice of democracy, the concept remains difficult to define.

Although the signifier 'continental philosophy' began its career as a pejorative term and remains difficult to define exactly, a common profile is nonetheless discernible among adherents (cf. Critchley 2001; Glendinning 2006).

However, because it remains difficult to define, a priori, an optimal window size since it would depend on the strength and timing of selection which are expected to be highly variable, we proposed to smooth SNP-specific FST values over each chromosome with a local variable bandwidth kernel estimator (Figures 3, S3, S4 and S5).

Spiritual healing itself is not well understood and remains difficult to define.

The number of species remains difficult to determine.

Although research is increasingly exploring the concept of the mind, body, spirit (MBS) and its relevance to health and well-being, it remains difficult to precisely define it.

Although many techniques have been developed to study phosphorylation and its effects on protein and cellular function, it remains difficult to generate proteins and peptides with defined phosphorylation patterns for detailed in vitro studies or antibody generation.

So the choice remains difficult to explain.

The legal landscape remains difficult to navigate.