objective(s): noise-induced hearing loss (nihl) is the major cause of acquired hearing loss.  celecoxib, a cyclooxygenase-2 (cox-2) inhibitor, is a non- steroidal anti- inflammatory drug (nsaid) with known antioxidant and antineoplastic activity. therefore, we monitored the extent of temporary noise- induced threshold shifts (tts) and cochlear damage caused by high level 4- khz noise exposure t...

Electronic retinal prostheses represent a potentially effective approach for restoring some degree of sight in blind patients with retinal degeneration. However, levels of safe electrical stimulation and the underlying mechanisms of cellular damage are largely unknown. We measured the threshold of cellular damage as a function of pulse duration, electrode size, and number of pulses to determine...

Abstract Background: Thyroid eye disease (TED) is an unpredictable autoimmune inflammatory which can be sight-threatening, debilitating, and disfiguring. The majority of patients have mild, self-limited TED, 20-30% experience moderate/severe disease, 3-5% may develop sight-threatening such as CON or exposure keratopathy. Surgical intervention commonly necessary for with stable however, there li...

introduction: occupational exposure to excessive noise is commonly encountered in a large number of industries in iran. this study evaluated the hearing threshold and hearing loss in meybod tile factory workers. methods: this cross-sectional study included 371 tile factoryworkers during summer and autumn of 2005. current noise exposure was estimated using sound level meter .a specially formatte...

Estimation of the analog read noise level and quantizer threshold to within a few hundredths an electron can be obtained by measuring output bit density, D, single-bit quanta image sensor (1bQIS) as function exposure, H. Analysis D-H characteristics levels is performed procedure for extraction estimated suggested demonstrated.

Introduction: Hearing loss is one of the most common occupational diseases. In most workplaces, workers are exposed to noise and solvents simultaneously, so the potential risk of hearing loss due to solvents may be attributed to noise.  In this study we aimed to assess the effect of exposure to mixed aromatic solvents on hearing in the absence of exposure to hazardous noise.   Materials and Met...

( ) Transient enhanced diffusion TED of boron limits the formation of ultrashallow junctions needed in next-generation microelectronic de®ices. A comprehensi®e TED model needs many parameters go®erning the physical and chemical processes. Prior estimates of the most likely ®alues for the parameters as well as their accuracies are determined from maximum likelihood estimation applied to estimate...