Alexandre F da Fonseca

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Helical amorphous nanosprings have attracted particular interest due to their special mechanical properties. In this work we present a simple model, within the framework of the Kirchhoff rod model, for investigating the structural properties of nanosprings having asymmetric cross section. We have derived expressions that can be used to obtain the Young's(More)
165 hypertensive patients attending one general practice in Portugal were found to report significantly higher scores on measures of neuroticism, anxiety, depression and general psychological distress than 152 normotensive patients at the same practice. Hypertensive patients with evidence of organ damage exhibited significantly higher depression scores than(More)
OBJECTIVE The objective of this study was to develop a reproducible method of establishing the concentration of yeast cells per milliliter of solution. METHODS Three methods of determining the number of yeast cells in solution were compared: Neubauer's counting chamber, spectrophotometry, and nephelometry. RESULTS All three methods were comparable and(More)
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