scholarly journals Assessing the effects of hearing-aid compression on auditory spectral and temporal resolution using an auditory modeling framework

2020 ◽  
Vol 41 (1) ◽  
pp. 214-222
Author(s):  
Borys Kowalewski ◽  
Michal Fereczkowski ◽  
Olaf Strelcyk ◽  
Ewen MacDonald ◽  
Torsten Dau
Keyword(s):  
Temporal Resolution ◽  
Hearing Aid ◽  
Modeling Framework ◽  
Auditory Modeling

scholarly journals Mobility and phone call behavior explain patterns in poverty at high-resolution across multiple settings

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Jessica E. Steele ◽  
Carla Pezzulo ◽  
Maximilian Albert ◽  
Christopher J. Brooks ◽  
Elisabeth zu Erbach-Schoenberg ◽  
...  
Keyword(s):  
Socioeconomic Status ◽  
Temporal Resolution ◽  
User Behavior ◽  
Health Indicators ◽  
Phone Call ◽  
Local Context ◽  
Mobility Patterns ◽  
Ancillary Data ◽  
Modeling Framework ◽  
Middle Income

AbstractCall detail records (CDRs) from mobile phone metadata are a promising data source for mapping poverty indicators in low- and middle-income countries. These data provide information on social networks, call behavior, and mobility patterns in a population, which are correlated with measures of socioeconomic status. CDRs are passively collected and provide information with high spatial and temporal resolution. Identifying features from these data that are generalizable and able to predict poverty and wealth beyond a single context could promote broader usage of mobile data, contribute to a reduction in the cost of socioeconomic data collection and processing, as well as complement existing census and survey-based methods of poverty estimation with improved temporal resolution. This is especially important within the context of the sustainable development goals (SDGs), where poverty and related health indicators are to be reduced significantly across subnational geographies by 2030. Here we utilize measures of cell phone user behavior derived from three CDR datasets within a Bayesian modeling framework to map poverty and wealth patterns across Namibia, Nepal, and Bangladesh. We demonstrate five metrics of user mobility and call behavior that are able to explain between 50% and 65% of the variance in socioeconomic status nationally for these three countries. These key metrics prove useful in very different contexts and can be readily provided as part of an existing CDR platform or software package. This paper provides a key contribution in this regard by identifying such metrics relevant to estimating poverty. We highlight the inclusion of ancillary data and local context as an important factor in understanding model outputs when targeting poverty alleviation strategies.

scholarly journals Changes of Temporal Processing and Hearing in Noise after Use of a Monoaural Hearing Aid in Patients with Sensorineural Hearing Loss: A Preliminary Study

2021 ◽  
Vol 25 (3) ◽  
pp. 146-151
Author(s):  
Yehree Kim ◽  
Chan Joo Yang ◽  
Myung Hoon Yoo ◽  
Chan Il Song ◽  
Jong Woo Chung
Keyword(s):  
Temporal Resolution ◽  
Auditory Processing ◽  
Hearing Aid ◽  
Control Group ◽  
Central Auditory Processing ◽  
Speech Discrimination ◽  
Hearing In Noise ◽  
One Year ◽  
A Prospective Study ◽  
The Relationship

Background and Objectives: The relationship between hearing aid (HA) use and improvement in cognitive function is not fully known. This study aimed to determine whether HAs could recover temporal resolution or hearing in noise functions.Materials and Methods: We designed a prospective study with two groups: HA users and controls. Patients older than 45 years, with a pure tone average threshold of worse than 40 dB and a speech discrimination score better than 60% in both ears were eligible. Central auditory processing tests and hearing in noise tests (HINTs) were evaluated at the beginning of the study and 1, 3, 6, and 12 months after the use of a monaural HA in the HA group compared to the control group. The changes in the evaluation parameters were statistically analyzed using the linear mixed model.Results: A total of 26 participants (13 in the HA and 13 in the control group) were included in this study. The frequency (<i>p</i><0.01) and duration test (<i>p</i>=0.02) scores showed significant improvements in the HA group after 1 year, while the HINT scores showed no significant change.Conclusions: After using an HA for one year, patients performed better on temporal resolution tests. No improvement was documented with regard to hearing in noise.

scholarly journals A Data Fusion Modeling Framework for Retrieval of Land Surface Temperature from Landsat-8 and MODIS Data

Sensors ◽  
2020 ◽  
Vol 20 (15) ◽  
pp. 4337
Author(s):  
Guohui Zhao ◽  
Yaonan Zhang ◽  
Junlei Tan ◽  
Cong Li ◽  
Yanrun Ren
Keyword(s):  
Data Fusion ◽  
Environmental Change ◽  
Surface Temperature ◽  
Spatial Resolution ◽  
Temporal Resolution ◽  
Land Surface Temperature ◽  
Land Surface ◽  
Landsat 8 ◽  
Modeling Framework ◽  
The Mean

Land surface temperature (LST) is a critical state variable of land surface energy equilibrium and a key indicator of environmental change such as climate change, urban heat island, and freezing-thawing hazard. The high spatial and temporal resolution datasets are urgently needed for a variety of environmental change studies, especially in remote areas with few LST observation stations. MODIS and Landsat satellites have complementary characteristics in terms of spatial and temporal resolution for LST retrieval. To make full use of their respective advantages, this paper developed a pixel-based multi-spatial resolution adaptive fusion modeling framework (called pMSRAFM). As an instance of this framework, the data fusion model for joint retrieval of LST from Landsat-8 and MODIS data was implemented to generate the synthetic LST with Landsat-like spatial resolution and MODIS temporal information. The performance of pMSRAFM was tested and validated in the Heihe River Basin located in China. The results of six experiments showed that the fused LST was high similarity to the direct Landsat-derived LST with structural similarity index (SSIM) of 0.83 and the index of agreement (d) of 0.84. The range of SSIM was 0.65–0.88, the root mean square error (RMSE) yielded a range of 1.6–3.4 °C, and the averaged bias was 0.6 °C. Furthermore, the temporal information of MODIS LST was retained and optimized in the synthetic LST. The RMSE ranged from 0.7 °C to 1.5 °C with an average value of 1.1 °C. When compared with in situ LST observations, the mean absolute error and bias were reduced after fusion with the mean absolute bias of 1.3 °C. The validation results that fused LST possesses the spatial pattern of Landsat-derived LSTs and inherits most of the temporal properties of MODIS LSTs at the same time, so it can provide more accurate and credible information. Consequently, pMSRAFM can be served as a promising and practical fusion framework to prepare a high-quality LST spatiotemporal dataset for various applications in environment studies.

Teachers' Stereotypes of Children Who Wear Hearing Aids

1981 ◽  
Vol 12 (3) ◽  
pp. 139-144 ◽  
Author(s):  
Cletus G. Fisher ◽  
Kenneth Brooks
Keyword(s):  
Elementary School ◽  
School Child ◽  
Hearing Aids ◽  
Hearing Aid ◽  
Social Implications ◽  
Elementary School Child ◽  
Classroom Teachers ◽  
Frequency Of Occurrence ◽  
Service Training

Classroom teachers were asked to list the traits they felt were characteristic of the elementary school child who wears a hearing aid. These listings were evaluated according to the desirability of the traits and were studied regarding frequency of occurrence, desirability, and educational, emotional, and social implications. The results of the groupings are discussed in terms of pre-service and in-service training.

Hearing Aid Gain Usage by Children

1989 ◽  
Vol 20 (2) ◽  
pp. 149-152 ◽  
Author(s):  
Kenneth W. Berger
Keyword(s):  
Hearing Aid ◽  
Appreciable Difference ◽  
Significant Difference ◽  
Clinically Significant

Hearing aid gain usage by two groups of children was examined. No appreciable difference was noted between the groups, nor was there a clinically significant difference between gain usage by these children as compared with a sample of adult hearing aid wearers.

The Hearing Aid Effect in African American and Caucasian Males as Perceived by Female Judges of the Same Race

1999 ◽  
Vol 30 (2) ◽  
pp. 165-172 ◽  
Author(s):  
Mary Davis ◽  
Rhonda Jackson ◽  
Tina Smith ◽  
William Cooper
Keyword(s):  
African American ◽  
Hearing Aids ◽  
Undergraduate Education ◽  
Hearing Aid ◽  
Semantic Differential ◽  
Semantic Differential Scale ◽  
Education Majors ◽  
Female Undergraduate ◽  
Lay Persons ◽  
Males And Females

Prior studies have proven the existence of the "hearing aid effect" when photographs of Caucasian males and females wearing a body aid, a post-auricular aid (behind-the-ear), or no hearing aid were judged by lay persons and professionals. This study was performed to determine if African American and Caucasian males, judged by female members of their own race, were likely to be judged in a similar manner on the basis of appearance, personality, assertiveness, and achievement. Sixty female undergraduate education majors (30 African American; 30 Caucasian) used a semantic differential scale to rate slides of preteen African American and Caucasian males, with and without hearing aids. The results of this study showed that female African American and Caucasian judges rated males of their respective races differently. The hearing aid effect was predominant among the Caucasian judges across the dimensions of appearance, personality, assertiveness, and achievement. In contrast, the African American judges only exhibited a hearing aid effect on the appearance dimension.

Students as Active Participants in Hearing Aid Maintenance

1992 ◽  
Vol 23 (3) ◽  
pp. 208-213 ◽  
Author(s):  
Marsha Lipscomb ◽  
Peggy Von Almen ◽  
James C. Blair
Keyword(s):  
Inner City ◽  
Hearing Aids ◽  
School System ◽  
Regular Education ◽  
Hearing Aid ◽  
Hearing Impairments ◽  
City School

Twenty students between the ages of 6 and 19 years who were receiving services for students with hearing impairments in a metropolitan, inner-city school system were trained to monitor their own hearing aids. This study investigated the effect of this training on the percentage of students who wore functional hearing aids. Ten of the students received fewer than 3 hours of instruction per day in the regular education setting and generally had hearing losses in the severe to profound range. The remaining 10 students received greater than 3 hours of instruction per day in the regular education setting and had hearing losses in the moderate to severe range. The findings indicated improved hearing aid function when students were actively involved in hearing aid maintenance programs. Recommendations are made concerning hearing aid maintenance in the schools.

The Relationship Between Hearing Loss Self-Management and Hearing Aid Benefit and Satisfaction

2019 ◽  
Vol 28 (2) ◽  
pp. 274-284 ◽  
Author(s):  
Elizabeth Convery ◽  
Gitte Keidser ◽  
Louise Hickson ◽  
Carly Meyer
Keyword(s):  
Decision Making ◽  
Hearing Loss ◽  
Hearing Aids ◽  
Clinical Decision Making ◽  
Hearing Aid ◽  
Well Being ◽  
Self Report ◽  
Self Management ◽  
Hearing Aid Benefit ◽  
The Relationship

Purpose Hearing loss self-management refers to the knowledge and skills people use to manage the effects of hearing loss on all aspects of their daily lives. The purpose of this study was to investigate the relationship between self-reported hearing loss self-management and hearing aid benefit and satisfaction. Method Thirty-seven adults with hearing loss, all of whom were current users of bilateral hearing aids, participated in this observational study. The participants completed self-report inventories probing their hearing loss self-management and hearing aid benefit and satisfaction. Correlation analysis was used to investigate the relationship between individual domains of hearing loss self-management and hearing aid benefit and satisfaction. Results Participants who reported better self-management of the effects of their hearing loss on their emotional well-being and social participation were more likely to report less aided listening difficulty in noisy and reverberant environments and greater satisfaction with the effect of their hearing aids on their self-image. Participants who reported better self-management in the areas of adhering to treatment, participating in shared decision making, accessing services and resources, attending appointments, and monitoring for changes in their hearing and functional status were more likely to report greater satisfaction with the sound quality and performance of their hearing aids. Conclusion Study findings highlight the potential for using information about a patient's hearing loss self-management in different domains as part of clinical decision making and management planning.

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