Elevated high-sensitivity troponin does not indicate the presence of coronary artery disease in patients presenting with supraventricular tachycardia.

Background: Patients with supraventricular tachycardia (SVT) and patients with coronary artery disease (CAD) often present with similar symptoms (chest pain, shortness of breath), similar electrocar¬diographic changes and elevated high-sensitivity troponin (Tn). It is not clear whether troponin reflects critical CAD or is elevated due to other causes in patients presenting with SVT. The aim of this study was to assess the role of elevated troponin in patients presenting with SVT.

Energy efficiency monitoring--which sensors are really needed?

Plant balancing of waste-to-energy plants is a key issue in determining plant performance and operating efficiency. Traditionally, plant efficiency is determined only during the acceptance test by the means of an ex-post energy balance. For continuous operation, energy efficiency is estimated on a monthly or yearly basis using the waste throughput and average lower heating value.

Physical activity behaviour in patients with metabolic syndrome.

Study/principles: Physical activity improves the clinical course of the metabolic syndrome and its risk factors. The aim of this study was to investigate the physical activity behaviour in patients with metabolic syndrome in regard to the recommendation of the Federal Offices of Public Health (BAG) and Sports (BASPO): "to exercise half an hour a day at a medium intensity."

Methods: 47 patients with metabolic syndrome were recruited from the Outpatient Department of the Division of Internal Medicine of the University Hospital Zurich.

High efficient waste-to-energy in Amsterdam: getting ready for the next steps.

Waste-to-energy (WtE) plants are traditionally designed for clean and economical disposal of waste. Design for output on the other hand was the guideline when projecting the HRC (HoogRendement Centrale) block of Afval Energie Bedrijf Amsterdam. Since commissioning of the plant in 2007, operation has continuously improved.