In this paper I present a partial formalisation of a normaliser for type theory in Agda[Nor07]; extending previous work on big-step normalisation[AC08,AC06]. The normaliser in written as an environment machine. Only the computational behaviour of the normaliser is presented omitting details of termination.

The article discusses a set of pictures that illustrate public health activities, practices, and campaigns against malaria in Brazil from 1918 through 1956. Exemplary of certain key moments in this history, the illustrations belong to three archives from the Casa de Oswaldo Cruz/Fundação Oswaldo Cruz collection: Arquivo Belisário Penna, Arquivto Fundação Rockefeller ("Serviço de Malária do Nord...

When objects move in the environment, their retinal images can undergo drastic changes and features of different objects can be inter-mixed in the retinal image. Notwithstanding these changes and ambiguities, the visual system is capable of establishing correctly feature-object relationships as well as maintaining individual identities of objects through space and time. Recently, by using a Ter...

Visual Odometry (VO) has established itself as an important localization technology for planetary exploration rovers, being capable of yielding location estimates with small error over medium-sized trajectories. However, due to VO’s incremental mode of operation, the estimation error accumulates over time, resulting in considerable drift for long trajectories. This paper proposes a global local...

Artists use words, lines, shapes, color, sound and their bodies to express emotions. Virtual humans use postures, gestures, face and voice to express emotions. Why are they limiting themselves to the body? The digital medium affords the expression of emotions using lights, camera, sound and the pixels in the screen itself. Thus, leveraging on accumulated knowledge from the arts, this work propo...

HE INTRODUCTION OF the carboxylic acid cation exchange Amberlite XE-96 (or IRC-50) Azure A resin’ as the medium for hydrogen ion exchange in place of the quininium exchange resin has simplified greatly the determination of gastric acidity without intubation (1). Solvent extraction and fluorimetry are no longer required. The amount of blue dye excreted in the urine is readily measured by visual ...

painting and art criticism are based on two different semiotic systems. the expression in painting is basically visual and in criticism is verbal. on the other hand, all expression is linguistic, that is expression and comprehension in all semiotic systems is basically linguistic. the art criticism, then, is situated between two poles: visual signs and verbal signs. it has as function to reorga...

When I turned on my computer the other day, a notification greeted me to update my software. I clicked " okay " and marveled at the computer's capacity to improve itself. An hour or so later, my computer had improved its programs to run faster, cleaned up its layout to appear more modern, and deleted several useless programs. On many occasions, the brain has been compared to a computer in its v...