Search results

Tinnitus patients are among the most vulnerable group to develop psychopathological symptoms over time if left unresolved. This study aims to investigate the role of tinnitus distress between tinnitus magnitude, cognitions and functional difficulties in the development of somatization symptoms among male and female patients experiencing ear-related problems due to lack of proper access to health care.

This study was based on a purposive sampling technique and sample consisted on 159 patients (97 male, 62 female) having tinnitus complaints, with age range 18–87 (M = 47.94, SD = 17.47) years, recruited from various clinics and hospitals of Islamabad, Pakistan, from December 2020 to July 2021.

The findings of this study showed that tinnitus distress is significant positively associated with tinnitus-related magnitude, negative cognitions, functional difficulties and somatization symptoms. Gender-related differences between male and female tinnitus patients revealed that females are more prone to depict higher levels of tinnitus distress, tinnitus magnitude, negative cognitions and somatization symptoms than male patients. Mediation analysis demonstrated that tinnitus distress serves as a mediator between tinnitus magnitude, cognitions, functional difficulties and somatization symptoms.

Cross-sectional nature and self-reporting measures serve as a limitation of the study. An experimental study appears to be vital to ascertain the time-based relationship with tinnitus magnitude in the development of various psychopathological issues. The findings of this study contribute to the literature by highlighting the role of tinnitus distress in the origination of psychopathological symptoms like somatization and need of upgraded health-care systems in Pakistan.

This study has explored the mediating role of tinnitus distress between magnitude, cognitions, functional difficulties and somatization symptoms among Pakistani population, specifically mentioning the development of somatization symptoms among this population, which can contribute in the loss of earning and increased health expenses due to unawareness of proper health-care approach.

This paper deals with a new hypothesis concerning the genesis of tinnitus. This disease has been investigated by many researchers but its origin and mechanisms involved are still unknown. This can be mainly due to the way the problem has been always faced by not considering the system as a whole, but instead by searching for specific system components and specific causes. The new way of dealing with the problem consists in taking into account the complete auditory system and to assume that tinnitus is due to an instability of a feedback loop in the system. A mathematical model has been built in order to justify this assumption and some interesting conclusions are drawn about tinnitus therapy.

THE medical problems of flying were first seriously tackled during the latter part of the first world war, when it became obvious that mechanical construction was indivisible with pilot performance. Research has since proceeded along two main lines: pre‐selection of personnel for flying duties and the maintenance of the physiological efficiency of flying personnel. There is no doubt that the work accomplished is proving invaluable in these times of extended air force expansion and added interest is therefore given to the report of the symposium held at Washington D.C., at which Air‐Commodore H. E. Whittingham represented Great Britain.

The purpose of this paper is to investigate the dimensions that distinguish high from low performing manufacturing companies in Great Britain with respect to controlling noise. The findings should assist regulators and industry to develop interventions that help organisations to effectively manage noise, particularly amongst the low performers.

The research uses quantitative and qualitative methods. Survey data was obtained from 215 manufacturers and supplemented with 15 qualitative interviews to assess performance and individual, social, environmental and organisational influences on duty holders' decision making for controlling noise.

Relative to low performers, decision makers from high performing companies had: greater in-depth knowledge of noise risks and controls; taken steps to promote positive health and safety attitudes and values; were large companies; and faced fewer resource barriers (time, costs, staffing). Managers in small, low performing companies sought simple interventions with a practical focus.

The differences reported between high and low performing companies showed a small magnitude of effect but these are considered significant in a health and safety context.

Improvements in training and education, and addressing workplace health and safety culture, are recommended as offering most potential to raise the standard of noise control.

To the authors’ knowledge, this is the first study to systematically assess the specific knowledge, attitudes, values and beliefs that employers hold about noise and the influence of social, environmental and organisational factors on manager’s decisions about noise controls.

This paper aims to guide the implementation of noise reduction measures in hoistway and reduce the aerodynamic noise generated by elevator operation, this paper aims to propose an aerodynamic noise analysis method that can solve the flow field in hoistway.

A turbulence-acoustic model solving the flow field in a hoistway and a numerical wind hoistway model of the ultra-high-speed elevator were established by using large eddy simulation (LES) and Curle acoustic theory.

The characteristics of pulsating flow field and aerodynamic noise around ultra-high-speed elevator are analyzed. The asymmetric characteristics of the flow field could be observed using the turbulent kinetic energy and the instantaneous vortexes in the wind hoistway model. Vortex shedding, air flow separation and recombination around the car were the key factors for aerodynamic noise generation. The sound pressure level was approximately linear to the logarithm of car speed. The increase of car deflection angle in a certain range would reduce the peak frequency of wake noise and increase the sound pressure level (SPL) value.

This paper provides important guidance for researches studying the aerodynamic noise in the hoistway and the technical personnel that look for the reduction measures, which greatly improves the shortcomings in the numerical simulation of the aerodynamic noise of the hoistway.

Idiopathic intracranial hypertension (IIH) can be a debilitating disorder that is difficult to identify and treat. Failure to adequately manage IIH symptoms may force patients to present at emergency departments (EDs) seeking symptom relief. The purpose of this paper is to empirically characterize ED use by previously diagnosed IIH patients.

Patients diagnosed with IIH, and who registered with the Intracranial Hypertension Registry by 2014, were solicited for study inclusion. A survey was designed to elicit ED use during the period 2010–2012. Information on demographic and socioeconomic characteristics, IIH signs and symptoms, time since diagnosis, perspectives of ED use and quality of life was collected. Quality of life was assessed using an adaptation of the Migraine-Specific Quality of Life Questionnaire. Data were analyzed using descriptive statistics and nonparametric hypothesis tests.

In total, 39 percent of IIH patients used emergency services over the study period; those that did used the services intensely. These patients were more likely to be non-white, live in households making less than $25,000 annually, have public insurance and have received a diversional shunt procedure. Patients who used the ED were less likely to live in households making $100,000, or more, annually and have private insurance. Participants who used the ED had significantly lower quality-of-life scores, were younger and had been diagnosed with IIH for less time.

ED staff and outside physicians can utilize the information contained in this study to more effectively recognize the unique circumstances of IIH patients who present at EDs.

Numerous factors relate to the effectiveness of health and safety (H&S) management within construction; but a specific factor influencing the extent of H&S “incidents” on site, is the amount of H&S knowledge held by construction workers. This paper aims to offer some initial observations on construction workers' H&S knowledge, based upon test‐result data from an invigilated online H&S test.

Data from 564 candidates were analysed principally by observing mean performance scores and apparent differences, among the sample and defined sub‐samples, for each of five H&S subject groupings that make up the test.

Mean scores indicate better retained knowledge in “general H&S” questions and lower knowledge in “manual handling” questions. There was little difference in mean scores between defined candidate age groups; or between different size classifications of candidates' employer organisations. Perceived characteristics of employers' training regimes did not appear to impact test results either.

Disparity among sub‐sample sizes within the data means that these findings are indicative and accordingly, have implications for a follow‐on study that will utilise deterministic modelling to more definitively confirm the effect of formal training and other (e.g. workplace) characteristics, on worker H&S knowledge retention.

The paper shows that workers having recently undertaken H&S training exhibit greatest retained knowledge, the level of which remains relatively consistent regardless of where a candidate lives, or a candidate's age group.