The Kangaroo Rat in Saskatchewan

Ultraviolet Communication in the Kangaroo Rat (Dipodomys ordii)

The University of Saskatchewan

Several insertion operations are studied applied to languages accepted by one-way and two-way deterministic reversal-bounded multicounter machines. These operations are defined by the ideals obtained from relations such as the prefix, infix, su x and outfix relations. The insertion of regular languages and other languages into deterministic reversal-bounded multicounter languages is also studie...

The University of Saskatchewan

Potential users of Assistive Technologies (AT) have little assistance in AT selection and support. This paper develops the concept of a Common Accessibility Profile (CAP) which can be used as the basis for selecting and supporting computer-related ATs. The CAP is based on a user-AT-system model focusing on improving accessibility to the interactions between users and systems. The CAP provides a...

Kangaroo rat locomotion: design for elastic energy storage or acceleration?

Mechanical stresses (force/cross-sectional area) acting in muscles, tendons and bones of the hindlimbs of kangaroo rats (Dipodomys spectabilis) were calculated during steady-speed hops and vertical jumps. Stresses were determined from both high-speed ciné films (light and X-ray) and force plate recordings, as well as from in vivo tendon force recordings. Stresses in each hindlimb support elemen...

Hearing in Glires: Domestic rabbit, cotton rat, feral house mouse, and kangaroo rat

ß Behavioral audiograms were determined for four species of Glires: one Iagomorph (domestic rabbit, Oryctolagus cuniculus) and three feral rodents (cotton rat, Sigmodon hispidus; house mouse, Mus rnuseulus; and kangaroo rat, Dipodomys rnerrlarni). Considerable variation in hearing ability was found among the four species with low-frequency hearing limits ranging over 5-1/2 octaves from 50 (kang...