991 research outputs found

    The appreciation of musical intervals

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    Contains fulltext : 5537.pdf (publisher's version ) (Open Access)Fifth International Congress of Aesthetics, Amsterdam 196

    Teaching and learning for the future

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    This is the final report of the Committee on MultiMedia in Teacher Training (COMMITT), which offers a strategic framework to support efforts of teacher training institutes in the Netherlands to develop their own plans for enhancing the teaching and learning process as well as its outcomes through the application of Information and Communication Technology (ICT). The purpose of the plan of action, called "a leap for the future," is to serve as a catalyst for teacher training institutes, elementary and secondary schools, and universities to work together on a common goal: improving teaching and learning through the application of ICT. This report consists of seven chapters. The first chapter is an introduction to the initiative to revitalize teacher training and the committee's activities. Chapter 2 describes an analysis of the transformation of society and consequences for learning in the future. Chapter 3 discusses key elements in the teaching and learning process. A conceptual model is presented which serves as a frame of reference for COMMITT. The role of ICT in teaching and learning is also discussed. Chapter 4 outlines the scope of COMMITT and provides examples illustrating the impact of ICT as a medium for education. Chapter 5 describes the challenges, opportunities and possible threats of implementing ICT in the education system and teacher training institutes. Guidelines for a program of action are elaborated in Chapter 6. The role of government, vision underlying the program, strategy and program of action, management and organization, and budget are discussed. Chapter 7 includes concluding remarks with a special emphasis on issues and factors which are expected to influence the implementation of the "leap for the future." Appendices present a list of the COMMITT members; a discussion on the Dutch education system; Committee statements; statements developed and judged by ICT coordinators; and different types of use of ICT as a medium. (AEF

    The connotation of musical consonance

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    Can false memories be created through nonconscious processes?

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    Presentation times of study words presented in the Deese/Roediger and McDermott (DRM) paradigm varied from 20 ms to 2000 ms per word in an attempt to replicate the false memory effect following extremely short presentations reported by J.G. Seamon, C.R. Luo and D.A. Gallo (1998). Both in a within-subjects design (Experiment 1) and in a between-subjects design (Experiment 2) subjects showed memory for studied words as well as a false memory effect for related critical lures in the 2000-ms condition. However, in the

    Head orientation benefit to speech intelligibility in noise for cochlear implant users and in realistic listening conditions

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    Cochlear implant (CI) users suffer from elevated speech-reception thresholds and may rely on lip reading. Traditional measures of spatial release from masking quantify speech-reception-threshold improvement with azimuthal separation of target speaker and interferers and with the listener facing the target speaker. Substantial benefits of orienting the head away from the target speaker were predicted by a model of spatial release from masking. Audio-only and audio-visual speech-reception thresholds in normal-hearing (NH) listeners and bilateral and unilateral CI users confirmed model predictions of this head-orientation benefit. The benefit ranged 2–5 dB for a modest 30� orientation that did not affect the lip-reading benefit. NH listeners’ and CI users’ lip-reading benefit measured 3 and 5 dB, respectively. A head-orientation benefit of �2 dB was also both predicted and observed in NH listeners in realistic simulations of a restaurant listening environment. Exploiting the benefit of head orientation is thus a robust hearing tactic that would benefit both NH listeners and CI users in noisy listening conditions

    Nonlinear Dynamics of the Perceived Pitch of Complex Sounds

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    We apply results from nonlinear dynamics to an old problem in acoustical physics: the mechanism of the perception of the pitch of sounds, especially the sounds known as complex tones that are important for music and speech intelligibility

    Porosity of silica Stöber particles determined by spin-echo small angle neutron scattering.

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    Stöber silica particles are used in a diverse range of applications. Despite their widespread industrial and scientific uses, information on the internal structure of the particles is non-trivial to obtain and is not often reported. In this work we have used spin-echo small angle neutron scattering (SESANS) in conjunction with ultra small angle X-ray scattering (USAXS) and pycnometry to study an aqueous dispersion of Stöber particles. Our results are in agreement with models which propose that Stöber particles have a porous core, with a significant fraction of the pores inaccessible to solvent. For samples prepared from the same master sample in a range of H2O : D2O ratio solutions we were able to model the SESANS results for the solution series assuming monodisperse, smooth surfaced spheres of radius 83 nm with an internal open pore volume fraction of 32% and a closed pore fraction of 10%. Our results are consistent with USAXS measurements. The protocol developed and discussed here shows that the SESANS technique is a powerful way to investigate particles much larger than those studied using conventional small angle scattering methods
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