Javascript is disabled or not supported in your browser. JavaScript must be enabled in order for you to use WIKINDX fully. Enable JavaScript through your browser options then try again, otherwise, try using a different browser.

Sound Research WIKINDX

List Resources

Displaying 1 - 7 of 7
Parameters

Christiansen, M. (2023). Ultralydskanning i graviditeten. Retrieved April 4, 2024, from https://www.sundhed.dk/ ... kanning-i-graviditeten/
Added by: Mark Grimshaw-Aagaard 04/04/2024, 12:47
"Hvor farlig er ultralydskanning i graviditeten? Ultralyd i forbindelse med graviditet og fødsel har været anvendt gennem de sidste 30 år. Der findes ingen undersøgelser, som peger på, at ultralyd har skadelige bivirkninger. Og der er ingen strålerisiko som ved røntgen. Undersøgelser af langtidseffekter på børn, som har været udsat for ultralydskanning i graviditeten, viser ingen skadelige virkninger, hverken på vækst, sprog eller fysisk udvikling."
Gilmour, L. R. V., Holderied, M. W., Pickering, S. P. C., & Jones, G. (2021). Acoustic deterrents influence foraging activity, flight and echolocation behaviour of free-flying bats. Journal of Experimental Biology, 224(20), 1–11.
Added by: Mark Grimshaw-Aagaard Last edited by: Mark Grimshaw-Aagaard 03/05/2022, 15:26
Leighton, T. G. (2007). What is ultrasound? Progress in Biophysics and Molecular Biology, 93(1–3), 3–83.
Added by: Mark Grimshaw-Aagaard Last edited by: Mark Grimshaw-Aagaard 06/04/2022, 12:16
"Foetal ultrasonic scanning is now so established in industrialised nations that it would now be difficult to find a control group for epidemiological studies."
"The limiting feature for the use of ultrasound in air is the severe absorption which rapidly reduces the amplitude of the field, as it propagates away from the source, to levels which are too low for most processing activities, or even to provide sufficient signal-to-noise ratios (SNRs) for many diagnostic applications. There is however one exception, the manifestation of which illustrates a key point which must be appreciated in the assessment of the safety of ultrasound in air. "The human ear is an extremely sensitive sensor for acoustic waves. Intensities which are low by the standards used for ultrasonic diagnostic technology, and certainly for ultrasonic processing, are generally very much higher than the maximum intensities which the human ear can sustain at audio frequencies without damage. Therefore when ultrasound is used to generate signals to which the ear can responds [sic] (which may not necessarily be restricted to audio frequencies—see Section 6), whilst the resulting intensities may be thought of as ‘low’ from the perspective of many ultrasonic technologies, they may be ‘high’ from the perspective of the ear. This point is discussed further in Section 7."
"Given the paucity of information on the safe levels for human exposure to ultrasound in air (Section 6), and the lack of traceability for the measurement of such fields (see Section 2.3), this could be a safety issue."
Leighton suggests three categories of exposure to ultrasound production, the first of which he classifies as ultrasonic noise exposure: ultrasound generated by some device as a byproduct of its operation (unintended exposure) ultrasound generated explicitly by some device and fundamental to its operation (unintended exposure e.g., ultrasonic rangefinder, automatic door openers) ultrasound generated in order to have an effect on humans and/or to change their behaviour (intended exposure).
Pawlaczyk-Łuszczyńska, M., & Dudarewicz, A. (2020). Impact of very high-frequency sound and low-frequency ultrasound on people: The current state of the art. International Journal of Occupational Medicine and Environmental Health, 33(4), 389–408.
Added by: Mark Grimshaw-Aagaard Last edited by: Mark Grimshaw-Aagaard 08/12/2025, 22:13
Pedersen Zari, M. (2018). The importance of urban biodiversity: An ecosystem services approach. Biodiversity International Journal, 2(4), 357–360.
Added by: Mark Grimshaw-Aagaard Last edited by: Mark Grimshaw-Aagaard 10/02/2023, 15:17
Ueda, M., Ōta, A., & Takahashi, H. 2014, November 16–19. Investigation on high-frequency noise in public space. Paper presented at INTERNOISE 2014 – 43rd International Congress on Noise Control Engineering: Improving the World Through Noise Control, Melbourne.
Added by: Mark Grimshaw-Aagaard Last edited by: Mark Grimshaw-Aagaard 24/09/2023, 11:30
Voorkomen is beter dan genezen: Ruim 8 patiënten minder voor elke hectare extra groen. (2022). (Whitepaper) Sweco.
Added by: Mark Grimshaw-Aagaard Last edited by: Mark Grimshaw-Aagaard 08/12/2022, 04:31