• Safety and Health at Work
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• 제12권2호
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• pp.184-191
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• 2021

Background: Hearing protection devices (HPDs) are often used in the workplace to prevent hearing damage caused by noise. However, a factor that can lead to hearing loss in the workplace is improper HPD fitting, and the previous literature has shown that instructing workers on how to properly insert their HPDs can make a significant difference in the degree of attenuation. Methods: Two studies were completed on a total of 33 Hydro One workers. A FitCheck Solo field attenuation estimation system was used to measure the personal attenuation rating (PAR) before and after providing one-on-one fitting instructions. In addition, external ear canal diameters were measured, and a questionnaire with items related to frequency of use, confidence, and discomfort was administered. Results: Training led to an improvement in HPD attenuation, particularly for participants with poorer PARs before training. The questionnaire results indicated that much HPD discomfort is caused by heat, humidity, and communication difficulties. External ear canal asymmetry did not appear to significantly influence the measured PAR. Conclusion: In accordance with the previous literature, our studies suggest that one-on-one instruction is an effective training method for HPD use. Addressing discomfort issues from heat, humidity, and communication issues could help to improve the use of HPDs in the workplace. Further research into the effects of canal asymmetry on the PAR is needed.

• 동의신경정신과학회지
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• 제23권2호
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• pp.85-98
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• 2012

Objectives : The histrionic personality disorder(HPD) is characterized by a pattern of excessive emotion and attention-seeking behavior, including a seductive behavior. It is known that HPD is closely related to a somatization disorder. The somatization disorder is characterized with various physical symptoms that have no pathologic manifestation. This report is on a case of 55 years old woman with HPD, who has been suffering from various physical symptoms that are coincided with diagnostic criteria for somatization disorder by DSM-IV. Methods : The patient was treated with oriental medical treatments (acupuncture, moxibustion, cupping therapy, and herb-medication), hypnotic therapy, and emotional freedom techniques. The effects of treatment were measured by VAS. Results : Chest pain was improved by hypnotic therapy and oriental medical treatments. But the patient's pantalgia and abdominal discomfort were controlled effectively by emotional freedom techniques. Conclusions : This result suggests that EFT might be effective for the defensive and dependent somatization disorder patient with HPD.