Re-examining the relationship between audiometric profile and tinnitus pitch

Objective: We explored the relationship between audiogram shape and tinnitus pitch to answer questions arising from neurophysiological models of tinnitus: ‘Is the dominant tinnitus pitch associated with the edge of hearing loss?’ and ‘Is such a relationship more robust in people with narrow tinnitus bandwidth or steep sloping hearing loss?’ Design: A broken-stick fitting objectively quantified slope, degree and edge of hearing loss up to 16 kHz. Tinnitus pitch was characterized up to 12 kHz. We used correlation and multiple regression analyses for examining relationships with many potentially predictive audiometric variables. Study Sample: 67 people with chronic bilateral tinnitus (43 men and 24 women, aged from 22 to 81 years). Results: In this ample of 67 subjects correlation failed to reveal any relationship between the tinnitus pitch and the edge frequency. The tinnitus pitch generally fell within the area of hearing loss. The pitch of the tinnitus in a subset of subjects with a narrow tinnitus bandwidth (n = 23) was associated with the audiometric edge. Conclusions: Our findings concerning subjects with narrow tinnitus bandwidth suggest that this can be used as an a priori inclusion criterion. A large group of such subjects should be tested to confirm these results

Open data from the third observing run of LIGO, Virgo, KAGRA, and GEO

The global network of gravitational-wave observatories now includes five detectors, namely LIGO Hanford, LIGO Livingston, Virgo, KAGRA, and GEO 600. These detectors collected data during their third observing run, O3, composed of three phases: O3a starting in 2019 April and lasting six months, O3b starting in 2019 November and lasting five months, and O3GK starting in 2020 April and lasting two weeks. In this paper we describe these data and various other science products that can be freely accessed through the Gravitational Wave Open Science Center at https://gwosc.org. The main data set, consisting of the gravitational-wave strain time series that contains the astrophysical signals, is released together with supporting data useful for their analysis and documentation, tutorials, as well as analysis software packages

Intelligent Vehicle System in Undefined EnvironmentIntelligent Vehicle System in Undefined Environment

This paper discusses the issue of detection of collision of a four-wheel vehicle on road in an undefined environment that is road traffic in small towns and cities. Initially the system is implemented to avoid the border hits of the vehicles during night time because of the inability of driver’s visual capacity. This system is extended to find the collision point in an undefined that is unknown environment where the approach of the vehicle is unrestricted. This system directs the driver, based on collision point information. The advisory information helps the driver to avoid collision. This system need not be installed in all the vehicles in the environment. It needs to be installed in the vehicle that requires advisory information to the driver.Рассмотрена задача распознавания ситуации с четырехколесным транспортным средством на дороге в условиях неопределенности окружающей обстановки, например при прохождении трафика в поселке и городе. Первоначально система использовалась для предотвращения выхода транспортного средства за границы дороги в ночное время вследствие ограниченности визуального обзора для водителя. Система предлагается в качестве источника консультативной информации для водителя транспортного средства.Розглянуто задачу розпізнавання ситуації з чотириколісним транспортним засобом на дорозі в умовах невизначеності навколишнього стану, наприклад при проходженні трафіка у селищі та місті. Спочатку систему використовували для запобігання виходу транспортного засобу за межи дороги вночі внаслідок обмеженості візуального огляду для водія. Систему запропоновано як джерело консультативної інформації для водія транспортного засобу