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Choral singing under the microscope : Identifying vocal leaders through comparison of individual recordings of the singers

Singing in groups and choirs is one of the main and generally most widespread musical activities: in schools at all levels among children and adolescents as well as in leisure time activities from "non-singer choirs" to more advanced and professional choirs. Previous studies indicate the need to identify vocal collaboration between choral singers. This article investigates how individuals in a cho

The associations between workplace bullying, salivary cortisol, and long-term sickness absence : a longitudinal study

BACKGROUND: Workplace stressors, such as bullying, are strongly related to subsequent long-term sickness absence, but little is known of the possible physiological mechanisms linking workplace stressors and sickness absence. The primary aim of this study was to investigate to what extent cortisol levels were associated with subsequent sickness absence and if cortisol mediated the association betwe

Medium Temperature Desulfurization for Oxyfuel and Regenerative Calcium Cycle

Desulfurization at medium temperature was investigated with focus on impacts of temperature and CO2 concentration under Oxyfuel firing and Regenerative Calcium Cycle (RCC) conditions. Investigation started with thermodynamic analysis and ThermoGravimetric Analysis (TGA). Tests were then conducted by a bench-scale fixed-bed type reactor, using a synthetic gas mixture. Various parameters were evalua

Research data is a product of (its) time

Research data are complicated things. The question of whether they are things at all is of course contentious. Yet, even if we leave this issue aside for now, there are continuous debates - some would say struggles - over who owns the data, how to handle and describe it, how to store and share more of it and why, in short, who has which interest in it. It is also unclear when it is appropriate to

The tyranny of the averages and the indiscriminate use of risk factors in public health : The case of coronary heart disease

Modern medicine is overwhelmed by a plethora of both established risk factors and novel biomarkers for diseases. The majority of this information is expressed by probabilistic measures of association such as the odds ratio (OR) obtained by calculating differences in average "risk" between exposed and unexposed groups. However, recent research demonstrates that even ORs of considerable magnitude ar