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PMC:7784787 / 9265-11421 JSONTXT

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LitCovid-PubTator

Id Subject Object Predicate Lexical cue tao:has_database_id
95 1556-1562 Disease denotes breath MESH:D004417

LitCovid-sentences

Id Subject Object Predicate Lexical cue
T80 0-7 Sentence denotes Results
T81 8-94 Sentence denotes Figure 3A–F shows images of the unmasked dummy and with five different face coverings.
T82 95-209 Sentence denotes The frames shown here are the brightest of the sequence of 30 frames, corresponding to the peak particle emission.
T83 210-296 Sentence denotes All other frames, together with raw data, are available in the supplemental materials.
T84 297-384 Sentence denotes Distinct differences in the effectiveness of the various materials can be clearly seen.
T85 385-507 Sentence denotes The unmasked dummy should have the highest particle emission, but the scattering plume appears relatively dim (Figure 3A).
T86 508-639 Sentence denotes This is because the narrow jet crosses the laser sheet quickly, so that at any one-time there are few particles in the laser sheet.
T87 640-829 Sentence denotes The three-layer mask shows some fabric penetration directly in front of the mouth and some turbulent leakage from under the eyes which crosses the laser cone above the forehead (Figure 3B).
T88 830-909 Sentence denotes The single-layer mask shows very high penetration and some leakage (Figure 3C).
T89 910-1095 Sentence denotes The brightness of the penetrating aerosol is around five-times greater than even the unmasked dummy, but this is due to the slower, broader flow which fills the laser beam with aerosol.
T90 1096-1105 Sentence denotes Figure 3.
T91 1107-1135 Sentence denotes Testing mask fabric and fit.
T92 1136-1218 Sentence denotes Top row: (A) no mask, (B) three-layer textile mask, (C) single-layer textile mask.
T93 1219-1307 Sentence denotes Bottom row: (D) CE marked FFP1 PPE mask, (E) CE marked Type 2 medical mask, (F) bandana.
T94 1308-1366 Sentence denotes Intensity scaled to 100–20,000 counts with ‘bb’ colourmap.
T95 1367-1425 Sentence denotes Similarly, the bandana shows high penetration (Figure 3F).
T96 1426-1598 Sentence denotes In this case, the leakage appears less intense, likely as there is less resistance from the fabric that would otherwise force the breath to find a path of lower resistance.
T97 1599-1750 Sentence denotes The medical mask (Figure 3E) and FFP1 (Figure 3D) mask display no detectable penetration but instead show a few turbulent jets from the cheek and eyes.
T98 1751-1867 Sentence denotes The leakage at the cheek is easier to discern from inspection of the whole time series (see supplemental materials).
T99 1868-2000 Sentence denotes In the image of the FFP1 mask, the wisp in front of the mask can be seen to originate at the cheek and did not penetrate the fabric.
T100 2001-2156 Sentence denotes These leakage jets tend to be directed over the forehead, or across the cheek, and are only partly moved into the laser cone by the extraction air current.