Mathematical cognition, paragon of abstraction, is marked by systematic associations between number and space, often described as “mental number lines.” In three experiments, we demonstrate a novel effect: a sagittal (back-to-front) number line for negative and positive integers. In a paradigm requiring full-body movements, participants judged numerical magnitude (Exp. 1-2) and parity (Exp. 3)....

This descriptive, correlational study surveyed 79 pierced and/or tattooed participants to determine reasons why people pierce and tattoo their bodies and to assess participants' knowledge of health risks involved in body alteration procedures. Participants queried represented a wide age range-between 19 and 55. Results showed that participants perceived few health risks involving piercing and t...

THE BIOCAPSULE AND ASSOCIATED E Q U I P M E N T Compared wit'h the capsule for BioFlight 1 the new .capsule was constmeted from a somewhat heavier aluminum alloy sheet to avoid the use of reinforcing ribs. Two access ports located ,on opposite sides of the capsule were provided to facilitate placement of equipment inside the c~psule. An additional small opening was located near fhe one used for...

The patient is a 64-year old Indian man who was harvesting oil palm fruit. This fruit occurs in large bunches, 3-4 metres above ground level and is cut down with a very sharp sickle tied to the end of a long pole. The harvester stands on the ground level. The patient slipped and fell backwards landing on the knife which had come loose and had fallen to the ground first, landing with its point u...

We show theoretically that the shape of a beam of matter waves cold atoms emerging from one subwavelength aperture pierced in a film can be collimated within a few degrees. By means of an external laser field, a potential well for the atoms in the direction perpendicular to the surface is created. In this way, a running surface matter wave can be excited when atoms diffract from the aperture. I...

1. Winternitz, Smith, and Robinson have offered as experimental evidence in support of the lymphatic path of infection in lobar pneumonia, a series of injection experiments of the rabbit's tracheal submucosa. What these investigators supposed to be lymphatics are shown by us to be an unusual type of venous supply consisting of short, wide, and richly anastomosing vascular channels. 2. There is ...