objective: noise pollution is one of the most important situations requiring a solution by the contemporary world. the national institute for occupational safety and health has identified noise as one of the ten leading causes of work-related diseases and injuries. dentists and dental auxiliaries are exposed to different noise levels while working in dental offices or laboratories. the purpose ...

in order to investigate the contribution of ear photosynthesis and cytokinin in determining grain sink size, a pot study was conducted during january to june 2005 in cereal glasshouse of faculty of agriculture of karaj, iran. experiment was conducted in a complete randomized design with a factorial arrangement of two factors, three replications and four pots in each plot. factors included culti...

background and aim: aging is accompanied with changes in cognitive capacities. in spite of advances in neural imaging technologies, there is not a straightforward method to observe cognitive functions. for assessing brain functions, researchers mainly use psychometric tests. the aim of this study was using consonant-vowel (cv) dichotic test as a non-invasive behavioral test for auditory attenti...

Introduction: Chronic otitis media (COM), a persistent and durable inflammation and infection of the middle ear, is a common disorder. Alterations in the contralateral ear in sufferers have been observed in recent years. Because only a few studies have been reported in this area, we performed this study in order to assess alterations in the contralateral ear of patients with COM.   Materials an...

BACKGROUND The purpose of this study was to evaluate the auditory brain stem response (ABR) and acoustic emissions of the inner ear (OAE) in middle-aged type 2 diabetics. METHODS Fifty type 2 diabetic and nondiabetic patients aged 40-50 years and attending the Tabriz Medical University outpatient clinics were recruited for this study during 2009-2010. All ABR and OAE procedures were implement...

Malformations of bony inner ear are rare anomalies occurring in approximately 20% of patients with congenital sensorineural hearing loss. Conductive hearing loss is usually associated with abnormalities of the external and middle ear. Recent reports of patients with lateral semicircular canal malformations indicate inner ear malformations to be associated with sensorineural or conductive hearin...

Background: We evaluated the number of ear, nose, throat, phlegm, and wound-site culture samples sent to Medical Microbiological Laboratory at a University Hospital in Turkey before during coronavirus disease 2019 (COVID-19) pandemic.Materials Methods: In this study, 2662 cultures 2019, 2020, 2021 were evaluated. The categorised by type year, changes over time assessed.Results: Of patients, 127...

Leukocyte rolling and emigration in response to inflammatory stimuli appears to involve both E-selectin- and P-selectin-dependent adhesion, which suggests that these molecules have overlapping functions. To clarify their relative contributions in chronic inflammation, we examined delayed-type contact hypersensitivity (DTH) responses in P-selectin, E-selectin, and E-/P-selectin-deficient mice. O...

Atherley, G. R. C., and Noble, W. G. (1970). Brit. J. industr. Med., 27, 260-265. Effect of ear-defenders (ear-muffs) on the localization of sound. In a laboratory study we examined the influence of ear-defenders (ear-muffs), of a type used in industry, on a localization task using the binaural (diotic) presentation ofa 1 KHz pure tone under anechoic conditions. Our subjects were 15 foundry wor...

OBJECTIVE This study aims to investigate loss of hearing among drivers in Zahedan, southeastern Iran. PATIENTS & METHODS This study carried out on a total of 1836 drivers in Zahedan in 2013. Loss of hearing in both ears was measured at 250, 1000, 2000, 3000, 4000, 6000, and 8000 Hertz. The demographic variables, blood parameter and anthropometric data were recorded through interview and exami...