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Cross-cultural adaptation into French and validation of the SCAR-Q questionnaire ; Cross-cultural adaptation into French and validation of the SCAR-Q questionnaire.
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In: ISSN: 0962-9343 ; EISSN: 1573-2649 ; Quality of Life Research ; https://hal-amu.archives-ouvertes.fr/hal-03623447 ; Quality of Life Research, Springer Verlag, 2021, 30 (4), pp.1225-1231. ⟨10.1007/s11136-020-02719-8⟩ (2021)
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Transmission of droplet-conveyed infectious agents such as SARS-CoV-2 by speech and vocal exercises during speech therapy: preliminary experiment concerning airflow velocity ...
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Abstract:
Purpose Infectious agents, such as SARS-CoV-2, can be carried by droplets expelled during breathing. The spatial dissemination of droplets varies according to their initial velocity. After a short literature review, our goal was to determine the velocity of the exhaled air during vocal exercises. Methods A propylene glycol cloud produced by 2 e-cigarettes' users allowed visualization of the exhaled air emitted during vocal exercises. Airflow velocities were measured during the first 200 ms of a long exhalation, a sustained vowel /a/ and varied vocal exercises. For the long exhalation and the sustained vowel /a/, the decrease of airflow velocity was measured until 3 s. Results were compared with a Computational Fluid Dynamics (CFD) study using boundary conditions consistent with our experimental study. Results Regarding the production of vowels, higher velocities were found in loud and whispered voices than in normal voice. Voiced consonants like /3/ or /v/ generated higher velocities than vowels. Some ... : European Archives of Oto-Rhino-Laryngology, Springer Verlag, 2020 ...
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Keyword:
Fluid Dynamics physics.flu-dyn; FOS Biological sciences; FOS Physical sciences; Quantitative Methods q-bio.QM
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URL: https://arxiv.org/abs/2101.03907
https://dx.doi.org/10.48550/arxiv.2101.03907
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Transmission of droplet-conveyed infectious agents such as SARS-CoV-2 by speech and vocal exercises during speech therapy: preliminary experiment concerning airflow velocity
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In: ISSN: 0937-4477 ; EISSN: 1434-4726 ; European Archives of Oto-Rhino-Laryngology ; https://hal.archives-ouvertes.fr/hal-03093696 ; European Archives of Oto-Rhino-Laryngology, Springer Verlag, 2020, ⟨10.1007/s00405-020-06200-7⟩ (2020)
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