scholarly journals Frequency of greatest temporary hearing threshold shift in harbor seals (Phoca vitulina) depends on fatiguing sound level

2019 ◽  
Vol 145 (3) ◽  
pp. 1353-1362 ◽  
Author(s):  
Ronald A. Kastelein ◽  
Lean Helder-Hoek ◽  
Robin Gransier
Keyword(s):  
Hearing Threshold ◽  
Phoca Vitulina ◽  
Sound Level ◽  
Threshold Shift ◽  
Harbor Seals

scholarly journals Temporary hearing threshold shift in harbor seals (Phoca vitulina) due to a one-sixth-octave noise band centered at 32 kHz

2020 ◽  
Vol 147 (3) ◽  
pp. 1885-1896 ◽  
Author(s):  
Ronald A. Kastelein ◽  
Lean Helder-Hoek ◽  
Suzanne A. Cornelisse ◽  
Léonie A. E. Huijser ◽  
John M. Terhune
Keyword(s):  
Hearing Threshold ◽  
Phoca Vitulina ◽  
Threshold Shift ◽  
Harbor Seals ◽  
Noise Band

scholarly journals Temporary hearing threshold shift in harbor seals (Phoca vitulina) due to a one-sixth-octave noise band centered at 16 kHz

2019 ◽  
Vol 146 (5) ◽  
pp. 3113-3122 ◽  
Author(s):  
Ronald A. Kastelein ◽  
Lean Helder-Hoek ◽  
Suzanne Cornelisse ◽  
Léonie A. E. Huijser ◽  
John M. Terhune
Keyword(s):  
Hearing Threshold ◽  
Phoca Vitulina ◽  
Threshold Shift ◽  
Harbor Seals ◽  
Noise Band

scholarly journals Temporary hearing threshold shift in harbor seals (Phoca vitulina) due to one-sixth-octave noise bands centered at 0.5, 1, and 2 kHz

2020 ◽  
Vol 148 (6) ◽  
pp. 3873-3885
Author(s):  
Ronald A. Kastelein ◽  
Lean Helder-Hoek ◽  
Suzanne A. Cornelisse ◽  
Linde N. Defillet ◽  
Léonie A. E. Huijser ◽  
...  
Keyword(s):  
Hearing Threshold ◽  
Phoca Vitulina ◽  
Threshold Shift ◽  
Harbor Seals

scholarly journals Temporary hearing threshold shift in harbor seals (Phoca vitulina) due to a one-sixth-octave noise band centered at 40 kHz

2020 ◽  
Vol 147 (3) ◽  
pp. 1966-1976 ◽  
Author(s):  
Ronald A. Kastelein ◽  
Cosmin Parlog ◽  
Lean Helder-Hoek ◽  
Suzanne A. Cornelisse ◽  
Léonie A. E. Huijser ◽  
...  
Keyword(s):  
Hearing Threshold ◽  
Phoca Vitulina ◽  
Threshold Shift ◽  
Harbor Seals ◽  
Noise Band

scholarly journals Assessment of noise impact on coal mine workers including way to/from workplace

2021 ◽  
pp. 151-155
Author(s):  
A.N Nikulin ◽  
I.S Dolzhikov ◽  
L.V Stepanova ◽  
V.A Golod
Keyword(s):  
Coal Mine ◽  
Occupational Disease ◽  
Noise Level ◽  
Noise Exposure ◽  
Hearing Threshold ◽  
Sound Level ◽  
Threshold Shift ◽  
Disease Stage ◽  
Noise Impact ◽  
The Way

Purpose. Determination of the noise induced permanent threshold shift for a coal miners in five main working professions, taking into account the noise impact on the way to the workplace and back based on data obtained from personal sound level meters. Methodology. A strategy is selected for measuring the level of noise exposure at workplaces No. 3 per workday (GOST ISO 9612-2016) in a coal mine. Personal sound level meters were attached to the miners shoulders; they measured the noise level on the way to the workplace, during the work shift (8 hours) and on the way back. The processing of the measurement results was carried out on the basis of a quantitative assessment of the noise impact on workers according to the noise induced permanent threshold shift (NIPTS). The NIPTS values were calculated for a period from 3 to 30 years for 5 main professions, taking into account the noise impact when moving to the workplace and back. Findings. The values of the equivalent noise level at miners workplaces of are determined, which are 15 to 20 dBA above the maximum permissible equivalent level (80 dBA). Based on the results obtained, a constant shift in the hearing threshold was forecast for workers of five occupations with seniority of 3 to 30 years. A reduction in the hearing threshold of a sinker will amount to 25 dB in 30 years, which corresponds to the occupational disease Stage 3. Originality. Constant displacement of the hearing threshold for workers in coal mines, caused by the effect of an increased noise level during the journey to the place of work and back, was revealed. Practical value. It was found that in order to prevent the development of an occupational disease (sensorineural hearing loss) in underground miners, it is necessary to measure the noise level by using personal sound level meters for an 8-hour working day, taking into account the way time to the workplace and back. Noise exposure assessment should be based on a continuous decrease in the hearing threshold.

Hearing threshold shifts and recovery in harbor seals (Phoca vitulina) after octave-band noise exposure at 4 kHz

2012 ◽  
Vol 132 (4) ◽  
pp. 2745-2761 ◽  
Author(s):  
Ronald A. Kastelein ◽  
Robin Gransier ◽  
Lean Hoek ◽  
Amy Macleod ◽  
John M. Terhune
Keyword(s):  
Noise Exposure ◽  
Hearing Threshold ◽  
Phoca Vitulina ◽  
Harbor Seals ◽  
Octave Band ◽  
Band Noise

Hearing Thresholds of Two Harbor Seals (Phoca vitulina) for Helicopter Dipping Sonar Signals (1.3-1.4 kHz)

2019 ◽  
Vol 45 (3) ◽  
pp. 349-355
Author(s):  
Ronald A. Kastelein ◽  
Robin Gransier ◽  
Marloe Brouwers ◽  
Lean Helder-Hoek
Keyword(s):  
Phoca Vitulina ◽  
Harbor Seals ◽  
Hearing Thresholds

Variation of Male–Male Aggression Patterns in Harbor Seals (Phoca vitulina)

2020 ◽  
Vol 46 (2) ◽  
pp. 119-123
Author(s):  
Anders Galatius ◽  
Jonas Teilmann ◽  
Jakob Tougaard ◽  
Rune Dietz
Keyword(s):  
Phoca Vitulina ◽  
Harbor Seals ◽  
Male Aggression
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