We have developed a novel model to study the correlated evolution of behavioural and morphophysiological traits in response to selection for increased locomotor activity. We used selective breeding to increase levels of voluntary wheel running in four replicate lines of laboratory house mice, Mus domesticus, with four random-bred lines maintained as controls. The experiment presented here teste...

BACKGROUND Research has suggested that meals-on-wheels recipients can be at risk for poor nutritional status. Despite this, few countries have statutory minimum requirements for the nutrient content of meals-on-wheels. This study examined both the nutritional status of a sample of Irish recipients and the nutrient content of a sample of meals provided to determine whether Irish recipients would...

Robots that can move over rough terrain with active body leveling are now in strong demand. Such a robot can have a variety of uses, such as carrying packages, assisting people who have difficulty in walking, and safety monitoring outdoors. Many robots capable of moving over rough terrain exist as research tools; however, few are suitable for practical use. These robots can be generally classif...

Since the advent of the modern deep section aerodynamic bicycle rim, there have been numerous and often divergent theories about what constitutes an aerodynamic spoke configuration. Theories even arose in the mid 1980’s thinking that higher spoke count wheels would force the air to move around the entire spoked area of the wheel, causing the wheel to behave similar to a disc. This particular th...

The magnetoacoustic measurement technique has been used successfully for residual stress measurements in laboratory samples[1-4]. However, when used to field test samples with complex geometries, such as railroad wheels, the sensitivity of the method declines dramatically[5,6]. It has been suggested that the decrease in performance may be due, in part, to an insufficient or nonuniform magnetic ...

*Corr. Author’s Address: inspire AG, ETH Zurich, Tannenstrasse 3, 8092 Zurich, Switzerland, [email protected] 462 Dressing of Hybrid Bond CBN Wheels Using Short-Pulse Fiber Laser Rabiey, M. – Walter, C. – Kuster, F. – Stirnimann, J. – Pude, F. – Wegener, K. Mohammad Rabiey1,* – Christian Walter2 – Friedrich Kuster2 – Josef Stirnimann1 – Frank Pude1 – Konrad Wegener1,2 1 inspire AG, ETH Zurich, S...

Tutte’s Wheels-and-Whirls Theorem is a basic inductive tool for dealing with 3-connected matroids. This paper proves a generalization of that theorem for the class of 2-polymatroids. Such structures include matroids, and they model both sets of points and lines in a projective space and sets of edges in a graph. The main result proves that, in a 3-connected 2-polymatroid that is not a whirl or ...