"a unique presence of" is a grammatically correct phrase and is used in written English.
You can use it to describe a singular and distinctive presence that stands out to an audience, or has a strong impression on them. For example, "The rock band had a unique presence of energy that captivated the crowd."
The author provides advice about avoiding peer pressure to have sex, the dangers of smoking and drugs and the importance of good manners and "developing a unique presence and sense of style".
As can be seen in the tandem mass spectra the 14 Da shift produced by the unique presence of a Valine instead of an Isoleucine in H2AB (Additional file 9) allows for the distinction of this novel activity-dependent variant from other H2As using proteomics.
The rather unique presence of a stable, non-transformable tetragonal region in this ternary oxide system allows for phase stability to high temperatures (1500 °C).
The unique presence of a group IIA intron in N. oculata but not the other three Nannochloropsis species reinforces this hypothesis.
Furthermore, O. gularis and O. tolminensis strongly resemble each other in their aperture traits by the unique presence of a palatal tooth.
A striking dissimilarity is the unique presence of two lactate oxidases in S. sobrinus DSM 20742, probably indicating an unusual capability of this strain in producing H2O2 and expanding its ecological niche.
Differences in gene content between these mitochondrial sequences are mostly due to a) a duplication of cytochrome oxidase subunit I (cox1) in N. salina, b) variations in small reading frames with unknown function that remain unsupported by the transcriptome, and c) the unique presence of a group IIA intron that splits cox1 in N. oculata.
Walter Benjamin's "The Work of Art in the Age of Mechanical Reproduction" suggested that the technology to endlessly replicate images had compromised the aura of art, the unique presence of an original piece.
The unique presence of such a plasmid in acne associated strains may potentially explain their role in acne pathogenesis and can possibly be used as a pathogenicity marker.
The unique presence of 3Hyp in chicken type III collagen prompted a search for possible distinct functional properties.
