Results 21 to 30 of about 1,115,877 (181)

Sound Spectrum Influences Auditory Distance Perception of Sound Sources Located in a Room Environment

Frontiers in Psychology, 2017
Previous studies on the effect of spectral content on auditory distance perception (ADP) focused on the physically measurable cues occurring either in the near field (low-pass filtering due to head diffraction) or when the sound travels distances >15 ...
Ignacio Spiousas, Pablo E. Etchemendy, Manuel C. Eguia, Esteban R. Calcagno, Ezequiel Abregú, Ramiro O. Vergara   +5 more
doaj   +1 more source

In Vitro Aberrometric Assessment of a Multifocal Intraocular Lens and Two Extended Depth of Focus IOLs

Journal of Ophthalmology, 2017
Purpose. To analyze the “in vitro” aberrometric pattern of a refractive IOL and two extended depth of focus IOLs. Methods. A special optical bench with a Shack-Hartmann wavefront sensor (SH) was designed for the measurement.
Vicente J. Camps, Angel Tolosa, David P. Piñero, Dolores de Fez, María T. Caballero, Juan J. Miret   +5 more
doaj   +1 more source

Magnitude of the contralateral efferent olivocochlear effect as a function of the frequency

Journal of Otology, 2022
Background: The activation of the medial olivocochlear reflex reduces the cochlear gain, which is manifested perceptually as decreased auditory sensitivity.
Fernanda Anza Miranda, Enzo Aguilar-Vidal   +1 more
doaj   +1 more source

A Proposal for a Data-Driven Approach to the Influence of Music on Heart Dynamics

Frontiers in Cardiovascular Medicine, 2021
Electrocardiographic signals (ECG) and heart rate viability measurements (HRV) provide information in a range of specialist fields, extending to musical perception.
Ennio Idrobo-Ávila, Humberto Loaiza-Correa, Flavio Muñoz-Bolaños, Leon van Noorden, Rubiel Vargas-Cañas   +4 more
doaj   +1 more source

A USER-FRIENDLY REMOTE-SENSING WEB-PLATFORM FOR BIODIVERSITY CONSERVATION AND MANAGEMENT IN PROTECTED AREAS [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
The Chilean SNASPE is a complex network of 104 protected areas covering 18.5 million hectares of continental and insular Chile in South America.
R. O. Chávez, J. A. Lastra, D. Valencia, I. Díaz-Hormazábal   +3 more
doaj   +1 more source

Relación de la percepción del plan estratégico institucional y la satisfacción de los estudiantes de la Universidad Nacional del Santa 2016

INGnosis Revista de Investigación Científica, 2016
Objetivo. Establecer la relación entre la percepción del Plan Estratégico Institucional de la Universidad Nacional del Santa y la satisfacción de los estudiantes de la Universidad Nacional del Santa 2016. Materiales y métodos. Se empleó el método hipotético deductivo, donde se aplicaron cuestionarios, para las variables percepción del plan ...
Guillermo Segundo Miñan Olivos, Henry Paul Miñan Olivos   +1 more
openaire   +1 more source

Error induced by the estimation of the corneal power and the effective lens position with a rotationally asymmetric refractive multifocal intraocular lens [PDF]

International Journal of Ophthalmology, 2015
AIM:To evaluate the prediction error in intraocular lens (IOL) power calculation for a rotationally asymmetric refractive multifocal IOL and the impact on this error of the optimization of the keratometric estimation of the corneal power and the ...
David P. Piñero, Vicente J. Camps, María L. Ramón, Verónica Mateo, Rafael J. Pérez-Cambrodí   +4 more
doaj   +1 more source

Can the application of certain music information retrieval methods contribute to the machine learning classification of electrocardiographic signals?

Heliyon, 2021
The electrocardiogram is traditionally used to diagnose a large number of heart pathologies. Research to improve the readability and classification of cardiac signals includes studies geared toward sonification of the electrocardiographic signal and ...
Ennio Idrobo-Ávila, Humberto Loaiza-Correa, Rubiel Vargas-Cañas, Flavio Muñoz-Bolaños, Leon van Noorden   +4 more
doaj   +1 more source

Algorithm for Correcting the Keratometric Error in the Estimation of the Corneal Power in Keratoconus Eyes after Accelerated Corneal Collagen Crosslinking

Journal of Ophthalmology, 2017
Purpose. To analyze the errors associated to corneal power calculation using the keratometric approach in keratoconus eyes after accelerated corneal collagen crosslinking (CXL) surgery and to obtain a model for the estimation of an adjusted corneal ...
David P. Piñero, Vicente J. Camps, Esteban Caravaca-Arens, Dolores de Fez, Francisco J. Blanes-Mompó   +4 more
doaj   +1 more source

Snow Cover and Snow Persistence Changes in the Mocho-Choshuenco Volcano (Southern Chile) Derived From 35 Years of Landsat Satellite Images

Frontiers in Ecology and Evolution, 2021
Mountain regions have experienced above-average warming in the 20th century and this trend is likely to continue. These accelerated temperature changes in alpine areas are causing reduced snowfall and changes in the timing of snowfall and melt. Snow is a
Roberto O. Chávez, Verónica F. Briceño, José A. Lastra, Daniel Harris-Pascal, Sergio A. Estay, Sergio A. Estay   +5 more
doaj   +1 more source