Perchlorates, which are mineral salts that contain chlorine and oxygen, have not been detected previously on Mars.
Scientists hope that sequencing entire genomes will allow them to identify much rarer, disease-linked variations that have not been detected previously.
These cases harbored diverse types of clinically significant genomic alterations that had been detected previously by a variety of molecular assays (Fig. 1b; Supplementary Data 2).
The NV0 centre is a 'dark state' of the NV− centre because it requires shorter excitation and detection wavelength than those optimized for NV− centre, and unlike the NV− centre it has not been detected previously using ODMR27,28,29.
We focus on the central part of North Island, where ambient tectonic tremors have been detected previously by Ide ([2012]).
They also show some of the features of the so-called large-scale wave structures (LSWS) that have been detected, previously, using other types of observations and have been suggested to be precursors of ESF.
Furthermore, three hydroxylated metabolites of CB3 (OH-CB3s), including 2'-hydroxy-4-chlorobiphenyl (2'OH-CB3), 3'-hydroxy-4-chlorobiphenyl (3'OH-CB3) and 4'-hydroxy-4-chlorobiphenyl (4'OH-CB3), have been detected previously [21].
Although telescopic observations at various wavelengths since the early 1990s have since identified several substances in Pluto's surface ices including nitrogen, methane, and carbon monoxide only methane had been detected previously in its atmosphere.
Only a handful of these rapid, millisecond-duration events, known as "fast radio bursts" (FRBs), had been detected previously, all of them by a single instrument — the Parkes Observatory in Australia.
Mouse SMP30 has been detected previously in the cytoplasm, nucleus and mitochondria, but there were no reports of the existence of multiple forms of SMP30 and their distribution.
Human papillomaviruses have been been detected previously in the respiratory tract and are commonly found in tumors in the lungs and the oropharynx [43] [45].
