Keep on rolling

Cylinder Rolling on Another Rolling Cylinder

This problem was suggested by Bradley Klee. For the related case of one cylinder rolling inside another, see [1]. When one cylinder is directly above the other, we define the line of contact of the lower cylinder, 1, with the horizontal plane to be the z-axis, at x = y = 0. Then, the condition of rolling without slipping for the lower cylinder is that when it has rolled (positive) distance x1, ...

Keep the monkey rolling: eye-hand coordination in Super Monkey Ball

This paper examines the relation between eye-hand coordination and computer games, specifically Super Monkey Ball. The study is exploratory and focuses on theoretical background and method problems. At the end of the paper the results from the pilot study is briefly presented. The results from the study are inconclusive in regard to the two main questions: Is there a connection between good ski...

Keep on Walking

A s clinicians who evaluate and treat musculoskeletal conditions on a daily basis, we are well aware of the positive effects of regular exercise. Weight control, aerobic fitness, and muscle strength maintenance are all benefits of daily workouts. The cardiovascular system also gains from regular exercise with blood pressure control and high-density lipoprotein (HDL) enhancement, with the commen...

Editorial Keep on Moving

Keep Eyes on Integrins

In mammals, there are 18 kinds of α subunit and 8 kinds of β subunit were discovered, which form 24 combinations (Table 1) [2,3]. Overall, these 24 kinds of integrins can be divided to two groups by containing α-I domain (Table 1 and Figure 1A) or not (Table 1 and Figure 1B). Integrin can regulate its ligand-binding affinity by conformational changes [1]. The adaptor proteins and signal pathway...