An advanced regularization methodology for use in watershed model calibration

A calibration methodology based on an efficient and stable mathematical regularization scheme is described. This scheme is a variant of so-called Tikhonov regularization in which the parameter estimation process is formulated as a constrained minimization problem. Use of the methodology eliminates the need for a modeler to formulate a parsimonious inverse problem in which a handful of parameters are designated for estimation prior to initiating the calibration process. Instead, the level of parameter parsimony required to achieve a stable solution to the inverse problem is determined by the inversion algorithm itself. Where parameters, or combinations of parameters, cannot be uniquely estimated, they are provided with values, or assigned relationships with other parameters, that are decreed to be realistic by the modeler. Conversely, where the information content of a calibration dataset is sufficient to allow estimates to be made of the values of many parameters, the making of such estimates is not precluded by preemptive parsimonizing ahead of the calibration process. White Tikhonov schemes are very attractive and hence widely used, problems with numerical stability can sometimes arise because the strength with which regularization constraints are applied throughout the regularized inversion process cannot be guaranteed to exactly complement inadequacies in the information content of a given calibration dataset. A new technique overcomes this problem by allowing relative regularization weights to be estimated as parameters through the calibration process itself. The technique is applied to the simultaneous calibration of five subwatershed models, and it is demonstrated that the new scheme results in a more efficient inversion, and better enforcement of regularization constraints than traditional Tikhonov regularization methodologies. Moreover, it is argued that a joint calibration exercise of this type results in a more meaningful set of parameters than can be achieved by individual subwatershed model calibration. (c) 2005 Elsevier B.V. All rights reserved.

Speech recognition use in healthcare applications

Speech recognition technology is regarded as a key enabler for increasing the usability of applications deployed on mobile devices -- devices which are becoming increasingly prevalent in modern hospital-based healthcare. Although the use of speech recognition is not new to the hospital-based healthcare domain, its use with mobile devices has thus far been limited. This paper presents the results of a literature review we conducted in order to observe the manner in which speech recognition technology has been used in hospital-based healthcare and to gain an understanding of how this technology is being evaluated, in terms of its dependability and reliability, in healthcare settings. Our intent is that this review will help identify scope for future uses of speech recognition technologies in the healthcare domain, as well as to identify implications for the meaningful evaluation of such technologies given the specific context of use.

Speech recognition use in healthcare applications

Speech recognition technology is regarded as a key enabler for increasing the usability of applications deployed on mobile devices -- devices which are becoming increasingly prevalent in modern hospital-based healthcare. Although the use of speech recognition is not new to the hospital-based healthcare domain, its use with mobile devices has thus far been limited. This paper presents the results of a literature review we conducted in order to observe the manner in which speech recognition technology has been used in hospital-based healthcare and to gain an understanding of how this technology is being evaluated, in terms of its dependability and reliability, in healthcare settings. Our intent is that this review will help identify scope for future uses of speech recognition technologies in the healthcare domain, as well as to identify implications for the meaningful evaluation of such technologies given the specific context of use.

'Lines of flight': digital musical instruments, inclusive music bands, meaningful engagement in music-making and learning

In this study I examine the development of three inclusive music bands in Cork city. Derived from Jellison’s research on inclusive music education, inclusive music bands involve students with disabilities coming together with typically developing peers to make and learn music that is meaningful (Jellison, 2012). As part of this study, I established three inclusive music bands to address the lack of inclusive music making and learning experiences in Cork city. Each of these bands evolved and adapted in order to be socio-culturally relevant within formal and informal settings: Circles (community education band), Till 4 (secondary school band) and Mish Mash (third level and community band). I integrated Digital Musical Instruments into the three bands, in order to ensure access to music making and learning for band members with profound physical disabilities. Digital Musical Instruments are electronic music devices that facilitate active music making with minimal movement. This is the first study in Ireland to examine the experiences of inclusive music making and learning using Digital Musical Instruments. I propose that the integration of Digital Musical Instruments into inclusive music bands has the potential to further the equality and social justice agenda in music education in Ireland. In this study, I employed qualitative research methodology, incorporating participatory action research methodology and case study design. In this thesis I reveal the experiences of being involved in an inclusive music band in Cork city. I particularly focus on examining whether the use of this technology enhances meaningful music making and learning experiences for members with disabilities within inclusive environments. To both inform and understand the person centered and adaptable nature of these inclusive bands, I draw theoretical insights from Sen’s Capabilities Approach and Deleuze and Guatarri’s Rhizome Theory. Supported by descriptive narrative from research participants and an indepth examination of literature, I discover the optimum conditions and associated challenges of inclusive music practice in Cork city.

Promoting oral interaction in the EFL classroom through the use of speaking activities

Este trabajo de investigación es sobre el uso de un folleto con actividades de expresión oral utilizados en una clase de Inglés de estudiantes de primer año del colegio "Integración Iberoamericano" y discute intereses de los estudiantes en desarrollo estas actividades para una interacción oral significativa entre (estudiantes y profesores) y (estudiantes-estudiantes). Además, este trabajo de investigacióntiene 5secciones: la primera secciónes una introducciónacerca de laimportancia de la comunicaciónen nuestra vidadiaria, la segunda secciónpresenta laliteratura, sección en la quese mencionandiferentesautores quepresentanalgunas perspectivassobreel desarrollo de comunicación oralen el EFL clase, así como en la tercera secciónse mencionala metodología utilizadadurante el desarrollodel trabajo de investigación. Por otra parte, en la cuarta secciónse presentaelanálisis de los datoscon los resultadosobtenidospor los participantesdespués de haber sido aplicado elfolleto conlasactividades de expresión oral, y, finalmente,en la quinta sección, se presentanlas conclusiones yrecomendacionesdespués de haberterminado el trabajo de investigación. Esimportante mencionarque el usode este folletoserá considerado como una opcióndiferente yuna metodología innovadoraque los futurosprofesores pueden utilizaren las clasescomo una herramientaútily significativa parael desarrollo deloshabilidades para hablar y una buena comunicación oral de los estudiantes.

Three dimensional printing as a way to create an engaging and meaningful context for learning

Three-dimensional (3D) printers are now commonplace in both primary and secondary schools within Australia. As with most new technologies they present a range of challenges to users in terms of technical problems and support, and how to integrate their use into the curriculum in a meaningful way. This research reports on data from a small number of Victorian primary schools from urban and regional areas. A case study methodology has been used to examine how each setting has approached the use of these printers and includes a review of the literature concerning the uptake of new technologies by non-experts. Data include interview transcripts from teachers, principals and technicians and photographic artefacts of 3D printed objects. Teachers reflected on their reasoning behind lesson plans and their aspirations for future use of 3D printers in the classroom. Some of the issues identified were teacher confidence, time to ‘play’ with and become familiar with 3D printers; and technical challenges that arose such as the time taken to print an object and clogging of printer extruders (heads). Recommendations are made concerning possible ways forward.