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This study reports on the validation of a questionnaire designed to measure general mathematics confidence, general confidence with using technology, and attitudes to the use of technology for mathematics learning. A questionnaire was administered to 289 students commencing a tertiary level course on linear algebra and calculus. Scales formed on the basis(More)
Fuzzy algebraic structures are a useful and flexible tool for modeling cognitive agents and their societies. In this article we propose a fuzzy algebraic framework where the valuating sets are other than the unit interval (lattices, partially ordered sets or relational structures). This provides for a flexible organization of the information gathered by the(More)
Implementing point cloud to grid conversion for digital elevation maps (DEM) presents one with many options for interpolation and we intend to explore algorithms for interpolation during the conversion process with a specific focus on Voronoi natural neighbor interpolation. By partitioning the environment into Voronoi cells and using the information from(More)
This paper describes a model for eeective incorporation of technology into the learning experience of a large and diverse group of students in rst-semester rst-year tertiary mathematics. It describes the introduction of elementary use of MATLAB, in a course ooered both on-campus and at a distance. The diversity o f the student group is outlined, types of(More)
The present study was conducted to determine the impact of suppressing trophoblast remodeling of the uterine spiral arteries by prematurely elevating estrogen levels in the first trimester of baboon pregnancy on uterine and umbilical blood flow dynamics. Uteroplacental blood flow was assessed by Doppler ultrasonography after acute administration of saline(More)
Glioneuronal heterotopias are rare malformations composed of differentiated derivates of neuroectodermal tissue that include disorganized neuronal and glial cells. They are typically located extracranially. The nasal cavity represents the most common location. Glioneuronal heterotopias have also been reported in the orbit, pharynx, middle ear, neck and(More)
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