We show that the value of the total angular momentum (AM) carried by a surface mode can be interpreted as representing the transverse position of the center or balance point of the power flow through the mode. Especially in the lossless cases, the value of the Abraham AM per unit power (multiplied by the square of the speed of light in vacuum) is exactly the same as the transverse position of t...

A recent article on the IMPALA algorithm by Schäffer et al. (1999) gives the misleading impression that the E-values returned by the MAST algorithm (Bailey and Gribskov, 1998) are unreliable. This erroneous conclusion was reached due to an inappropriate protocol in the experiment involving MAST in the IMPALA article. We have tested MAST using a redesigned protocol that causes MAST to behave as ...

1. Single unitary activity in primate somatosensory cortex (SI) was recorded while monkeys maintained a range of static arm postures. Unit discharge was related to parameters defining the posture of the arm by multiple linear regression techniques. 2. Two monkeys were trained to grasp a manipulandum presented at locations distributed throughout their workspace. The discharge of single units in ...

The transition from the supine to the upright position requires a reorganization of the mechanisms of cardiovascular control that, if not properly accomplished, may lead to neurally mediated syncope. We investigated how the patterns of causality between systolic arterial pressure (SAP) and cardiac RR interval were modified by prolonged head-up tilt using a novel nonlinear approach based on corr...

This paper discusses the design and implementation of interactive smooth zooming of a starfield display (which is a visualization of a multi-attribute database) and introduces the zoom bar, a new widget for zooming and panning. Whereas traditional zoom techniques are based on zooming towards or away from a focal point, this paper introduces a novel approach based on zooming towards or away from...

1. The axiom of choice. The object of this paper is to consider the possibUity of setting up a logic in which the axiom of choice is false. The way of approach is through the second ordinal class, in connection with which there appear certain alternatives to the axiom of choice. But these alternatives have consequences not only with regard to the second ordinal class but also with regard to oth...