The interest in patterning surfaces with microand nanometer resolutions has been growing fast in recentyears, illustrating the tremendous potential of patterning techniques for both fundamental investigationsand technological applications in photonics, molecular electronics, and biosensors. Among the variouspatterning methods, liquid dispensing techniques relying on the use of m...

Background: The quantification of gene expression in tissue samples requires the use of reference genes to normalise transcript numbers between different samples. Reference gene stability may vary between different tissues, and between the same tissue in different disease states. We evaluated the stability of 9 reference genes commonly used in human gene expression studies. Realtime reverse tra...

Visual working memory is characterised by a limited storage capacity. Given this storage limitation, selection of behaviourally relevant objects based on locations, features or object category, is crucial. We conducted behavioural and ERP experiments to investigate location-based selection of multiple targets for storage in visual working memory, with a change detection paradigm. In the first e...

Sensory-substitution prosthetic systems are based on the idea of substituting visual stimulation with stimulation from another intact sense such as audition or touch. Although such systems have been studied for almost 40 years (Bach-y-Rita 1968), they are still poorly understood. Here we ask whether we learn to perceive simple spatial properties using The vOICe (Meijer 1992), a system for visua...

Linear iteration coincides with multiplication by successive powers of a matrix; convergence of the iterates depends on the magnitude of its eigenvalues. We discuss in some detail a variety of convergence criteria based on the spectral radius, on matrix norms, and on eigenvalue estimates provided by the Gerschgorin Circle Theorem. We will then turn our attention to the three most important iter...

The primary concepts on which our spatial knowledge is based must have its origin in early individual development. One of these concepts is the notion of an object. Characteristic of the development of this concept is the so-called A-not-B-error (Piaget 1937). The error occurs in 6 to 8 months old infants that persist in reaching for location A, where an object was hidden several times, even th...

Motivation is a key ingredient for learning: If the learner is motivated, you may hope for some success. If she/he is not, you may as well stop here. Educational robotics has proven to be an excellent tool for motivating students at ages from 8 to 80. This paper describes the use of competitions in order to sustain motivation over a longer period of time, which increases the chances that the le...

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