Search results for "METHODOLOGIE"
showing 10 items of 2141 documents
A Conceptual Framework for Using and Evaluating Web-Based Learning Resources in School Education
2010
Published version of an article from the journal:Journal of Information Technology Education. Also available from the publisher: http://www.jite.org/documents/Vol9/JITEv9p053-079Hadjerrouit743.pdf Web-based learning resources (WBLRs) have provided teachers with a wide range of new teachingexperiences that are not possible in traditional classroom. However, little research has beendone as to which approach to WBLRs is suitable to address issues that are pertinent to learning.This paper proposes a conceptual framework to explore the design and evaluation of WBLRs inschool education. The paper also examines the way in which the framework is used to evaluatestudents? and teachers? perceptions o…
High Performance 3D PET Reconstruction Using Spherical Basis Functions on a Polar Grid
2011
Statistical iterative methods are a widely used method of image reconstruction in emission tomography. Traditionally, the image space is modelled as a combination of cubic voxels as a matter of simplicity. After reconstruction, images are routinely filtered to reduce statistical noise at the cost of spatial resolution degradation. An alternative to produce lower noise during reconstruction is to model the image space with spherical basis functions. These basis functions overlap in space producing a significantly large number of non-zero elements in the system response matrix (SRM) to store, which additionally leads to long reconstruction times. These two problems are partly overcome by expl…
A novel solution based on scale invariant feature transform descriptors and deep learning for the detection of suspicious regions in mammogram images.
2020
Background: Deep learning methods have become popular for their high-performance rate in the classification and detection of events in computer vision tasks. Transfer learning paradigm is widely adopted to apply pretrained convolutional neural network (CNN) on medical domains overcoming the problem of the scarcity of public datasets. Some investigations to assess transfer learning knowledge inference abilities in the context of mammogram screening and possible combinations with unsupervised techniques are in progress. Methods: We propose a novel technique for the detection of suspicious regions in mammograms that consist of the combination of two approaches based on scale invariant feature …
A web-based collection of genotype-phenotype associations in hereditary recurrent fevers from the Eurofever registry
2017
PubMed ID: 29047407
La competencia textual y mediática en el aula de ELE
2017
Resumen: La habilidad de comprender y producir textos es una de las competencias basicas en la sociedad de la informacion y de la comunicacion (OECD, 2000). Sin embargo, el concepto texto ha evolucionado adquiriendo una versatilidad que rebasa la concepcion tradicional de texto escrito. Para superar este desfase al que la competencia lectora o las destrezas en la comprension y/o expresion oral no llegan, se propone desde Alemania el termino competencia textual y mediatica [1] . La finalidad de esta comunicacion es reflexionar sobre la importancia de esta nueva competencia y dotar al profesorado de herramientas en el tratamiento de la competencia textual en el aula de ELE. Para ello, present…
Plasma membrane redox system in the erythrocytes of rowers: Pilot study
2017
The oxidative stress results from a change in the physiological balance between oxidant and antioxidant species. This type of stress is a chemical change in the redox state of cells. The increased production of reactive species is related to an excessive metabolic activation, for example, from an intense physical exercise or an excessive caloric intake (1). In physiological conditions, muscle fibers are provided with an antioxidant system able to keep under control the excessive production of Reactive Oxygen Species (ROS).
Life Skills e formazione iniziale dei docenti
2022
challenges of everyday life. Learning to live involves acquiring many skills, for which in some cases there is a natural predisposition, but which always require a "guided" exercise in real life contexts so that the person acquires the skills necessary to "live properly". The research was conducted with a group of 153 students from the Master of Science in Primary Education, who participated in a two-year training project during the academic years 2020-21 and 2021-22. This article describes whether and to what extent the students believe they have developed the four chosen life skills and which of the training methodologies adopted by the lecturers were most effective.
Examining Enterprise Architecture Definitions : Implications from Theory and Practice
2019
This study explores the evolving discipline of Enterprise Architecture (EA) and the various definitions given to EA in literature and by practitioners. Due to the potential benefits, such as business and IT alignment, academics and practitioners have maintained an interest in enterprise architecture. EA has been developed outside of scientifically tested foundations, and is characterized by diversified views, seen in varied definitions given to the concept. Prior research has identified the need for conceptual strengthening as a necessity for the maturing the discipline. We contribute to this on-going discussion with a systematic literature review on the state-of-the-art of EA definitions a…
Designing a graphics processing unit accelerated petaflop capable lattice Boltzmann solver: Read aligned data layouts and asynchronous communication
2017
The lattice Boltzmann method is a well-established numerical approach for complex fluid flow simulations. Recently, general-purpose graphics processing units (GPUs) have become available as high-performance computing resources at large scale. We report on designing and implementing a lattice Boltzmann solver for multi-GPU systems that achieves 1.79 PFLOPS performance on 16,384 GPUs. To achieve this performance, we introduce a GPU compatible version of the so-called bundle data layout and eliminate the halo sites in order to improve data access alignment. Furthermore, we make use of the possibility to overlap data transfer between the host central processing unit and the device GPU with comp…
Local cubic splines on non-uniform grids and real-time computation of wavelet transform
2017
In this paper, local cubic quasi-interpolating splines on non-uniform grids are described. The splines are designed by fast computational algorithms that utilize the relation between splines and cubic interpolation polynomials. These splines provide an efficient tool for real-time signal processing. As an input, the splines use either clean or noised arbitrarily-spaced samples. Formulas for the spline’s extrapolation beyond the sampling interval are established. Sharp estimations of the approximation errors are presented. The capability to adapt the grid to the structure of an object and to have minimal requirements to the operating memory are of great advantages for offline processing of s…