A knowledge of the shape of the cornea is of major importance for the planning and monitoring of surgery, and for the correct diagnosis of corneal diseases. Many authors have studied the geometry of the second corneal surface in the…

The chemical effects of acoustic cavitation are obtained in sono-reactors built-up from a vessel and an ultrasonic
source. In this paper, simulations of an existing sono-reactor are carried out, using a linear acoustics model, accounting
for the vibrations of the…

Abstract. In this article we examine an example of collaborative learning with ICT in secondary school science, in order to analyse its characteristics and determine if they answer criteria for an activity of constructivist nature. We retain that constructivism places…

Descripción completa.

Descripción completa.

Descripción completa.

This paper makes the claim that in ?The Origin of the Work of Art,? Heidegger treats art as a primary phenomenon through which truth as unhiddenness is revealed at the locus of the work of art. Essays by Heidegger commentators…

This paper makes the claim that in ?The Origin of the Work of Art,? Heidegger treats art as a primary phenomenon through which truth as unhiddenness is revealed at the locus of the work of art. Essays by Heidegger commentators…

Design and optimization of distillation columns for ethanol dehydration, using a hydrocarbon as entrainer, implies a good knowledge of vapor-liquid (VLE), liquid-liquid (LLE) and vapor-liquid-liquid equilibrium (VLLE). Chemical process simulation programs always require the use of a thermodynamic model that…

Abstract: Grounded in rhetorical theory, this paper examines the “Oka crisis” and suggests that the conflict created a place of non-identification where assumptions about the superiority of Canadian (or Québecois) values and norms became unsettled. It argues that by embodying…