Large sharks (Carcharhinidae, Sphyrnidae), in their natural environment, were attracted to low-frequency (predominantly 20 to 60 cy/sec) pulsed sounds, but apparently not to higher frequency (400 to 600 cy/sec) pulsed sounds, or to low-frequency continuous sounds. The sharks apparently detected and oriented to the sounds in the acoustic far field.

M. DI BERNARDO∗ Department of Engineering Mathematics and, Department of Mechanical Engineering, University of Bristol, Bristol BS8 1TR, UK E. FOSSAS and G. OLIVAR† Departament de Matemàtica Aplicada i Telemàtica, Universitat Politècnica de Catalunya, Mod. C3 C. Nord, Gran Capità s/n, 08034 Barcelona, Spain F. VASCA‡ Facoltà di Ingegneria di Benevento, Università di Salerno, C.so Garibaldi, Pal...

For comparison with findings in neuropathy, sensory conduction was studied along distal and proximal segments of the superficial peroneal, sural, and posterior tibial nerves in 71 healthy subjects 15 to 72 years of age and normal values were established (Table 2). In the distal segments of the nerves of the leg the amplitudes of the sensory potentials were one tenth those in the nerves of the u...

To date, no published data exists on distances and speeds traveled by rugby or basketball players during game play. The purpose of this study was to provide quantitative information of selected characteristics of wheelchair basketball and rugby game play. A miniaturized data logger was used to collect the distance traveled, average velocity, activity time, and number of starts and stops during ...