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This study has as its aim to help to clarify the relationship between environmental management and economic performance by
integrating it into a wider framework that includes the relationship between environmental strategy and firm performance, the latter being understood as…

The second-order harmonic balance method is used to construct three approximate frequency-amplitude relations for a conservative nonlinear singular oscillator in which the restoring force is inversely proportional to the dependent variable. Two procedures are used to solve the nonlinear differential…

Considerable attention has recently been directed towards the analysis of pluralism in social science, not least in economics. Plurality is often taken as a mark of pluralism. But it is not the same thing, and often indicates little more than…

Nowadays, the material disassembly is an important issue for the industry. This paper presents an algorithm to sequence the task to be performed in the disassembly of a specific material from a product or to separate all the materials of…

BACKGROUND: The extubation failure rate in our burn patients is 30%.

OBJECTIVE: To evaluate the influence of the 30 min spontaneous breathing trial on extubation outcome in burn patients.

METHODS: A prospective, observational study in a burn intensive…

An approximation scheme to obtain the period for large amplitude oscillations of a simple pendulum is analysed and discussed. The analytical approximate formula for the period is the same as that suggested by Hite (2005 Phys. Teach. 43 290), but…

The templated growth of polyaniline through porous sol–gel films on ITO substrates has been performed. The polyaniline–silica composites have been synthesized by electrochemical reactive insertion in potentiodynamic and potentiostatic conditions. When the polymer is synthesized by potential step experiments, the…

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