The comparison of tympanometric results to distortion product otoacoustic emissions

This paper presents a study investigating the relationship between tympanometry measures of the middle ear and Distortion Product Otoacoustic Emissions (DPOAE) screening, suggesting that using a combination of the two methods in pediatricians’ offices would result in fewer inappropriate referrals for comprehensive hearing evaluations.

Test-retest reliability of distortion product otoacoustic emissions in high-risk registry neonates

This paper studies the test-retest reliability of distortion product otoacoustic emissions (DPOAE) in newborns in a neonatal intensive care unit.

The characterization of distortion product otoacoustic emissions in the Sprague-Dawley rat during development

This paper describes a project which set up a system to measure distortion product otoacoustic emissions (DPOAEs) in the Sprague Dawley rat and to conduct a pilot study to measure the development of DPOAEs as a function of age.

Distortion product otoacoustic emissions in high-risk neonates

This paper discusses a study done of neonates to determine the differences between ABR and DPOE for hearing screening.

Noise exposure in high school aged youths and distortion product otoacoustic emissions

This paper discusses the effect of noise exposure on high school aged boys' hearing levels and how to measure the effects.

Variability in distortion product otoacoustic emissions among normal ears

This paper studies the relationship between hearing sensitivity and the presence of otoacoustic emissions by examining the variability of same ear emissions in a group of normal-hearing subjects.

Effects of time averaging on noise floor in distortion product otoacoustic emissions

This paper examines distortion product otoacoustic emissions (DPOAEs) used to test peripheral auditory function, and how noise level in the ear affects the detectability of DPOAEs. The study examines the clinical feasibility of different time averages at different frequencies on the noise floor.

Measurement of distortion product emissions in chinchilllas

This paper is a review of a study on distortion product emissions in normal hearing chinchillas.

Changes in distortion-product otoacoustic emissions in chinchilla after intermittent noise exposure

This paper discusses the distortion-product otoacoustic emissions (DPOAE) of chinchillas when exposed to noise.

Distortion product otoacoustic emissions in the bullfrog

Recovery of distortion product otoacoustic emissions in the bullfrog after noise exposure does not correlate with hair cell damage noted on the amphibian papilla.

Operations on Risk Variables

In the article the author considers and analyzes operations and functions on risk variables. She takes into account the following variables: the sum of risk variables, its product, multiplication by a constant, division, maximum, minimum and median of a sum of random variables. She receives the formulas for probability distribution and basic distribution parameters. She conducts the analysis for dependent and independent random variables. She propose the examples of the situations in the economy and production management of risk modelled by this operations. The analysis is conducted with the way of mathematical proving. Some of the formulas presented are taken from the literature but others are the permanent results of the author.

Hacia la definición de una línea de codicia: aportes conceptuales y empíricos sobre América Latina y Ecuador (Tema Central)

Este ensayo propone la línea de codicia para controlar el máximo nivel de consumo ética y económicamente aceptable, sobre el cual una redistribución parcial de los ingresos individuales puede eliminar la pobreza y restituir la economía hasta sus límites sustentables. El crecimiento económico actual permite superar varias veces las necesidades fundamentales de la población, sin embargo, la enorme inequidad social impide que al menos el 40% de la humanidad satisfaga sus necesidades humanas básicas, mientras que, el consumo suntuario absorbe una parte significativa del producto mundial y el tamaño de la economía ha superado la capacidad de reposición del planeta. La línea de codicia puede ser constante en un contexto histórico nacional definido, pero es variable a escalas temporales y regionales más amplias, su nivel es menor a mayor inequidad o pobreza, y a mayor actividad económica globalmente insustentable, finalmente, aumenta conforme la economía crece dentro de límites sustentables y equitativos.