Physical activity predicts task-related behaviour, affect and tiredness in the primary school classroom: A within-person experiment.

Aim: We investigated the dose-response relationship between acute physical activity (PA) intensity during physical education (PE) lessons (dose), and task behaviour and learning experiences in the classroom after PE (response), and mediation effects of acute PA on-task behaviour via learning experiences.

Method: A total of 78 children (M  = 9.30 years; 43 females) took part.

The effect of physical education lesson intensity and cognitive demand on subsequent learning behaviour.

Objectives: To investigate the effect of (i) physical education (PE) lesson intensity and (ii) skill complexity, and (iii) their interaction on students' on-task behaviour in the classroom.

Design: Within-subject repeated-measures.

Methods: Participants were children (N=101, age 7-11) recruited from four elementary schools in Oxfordshire, United Kingdom.

Haptic Assistance Improves Tele-Manipulation With Two Asymmetric Slaves.

Tele-manipulation of heavy loads typically requires the simultaneous use of two asymmetric slaves: a crane for vertical weight support and a robot for accurate lateral positioning. The industrial standard prescribes a pair of operators for such tasks (one operator to control each slave), although in principle one operator might control both slaves with a single, hybrid interface. Accurate and safe co-operative handling of the expensive and fragile heavy components is difficult, presumably due to problems in the coordination of the subtasks and the lack of mutual awareness between the two operators.

Risk factors for QTc interval prolongation.

Purpose: Prolongation of the QTc interval may result in Torsade de Pointes, a ventricular arrhythmia. Numerous risk factors for QTc interval prolongation have been described, including the use of certain drugs. In clinical practice, there is much debate about the management of the risks involved.