Rapids and Waterfalls

New Rheophilic Species of Electric Knifefish from the Rapids and Waterfalls of the Lower Rio Xingu, Brazil (Gymnotiformes: Apteronotidae)

Rafting the Ethical Rapids

Towards a unification of waterfalls, standard and P algorithms

This paper can be considered as an addendum to the previous paper entitled "P algorithm, a dramatic enhancement of the waterfall transformation" [1]. In this former document, some suggestions have been made here and there, some ideas have emerged. These suggestions and ideas have unfortunately not be developped due to some lack of time and also because the authors did not wish to complicate the...

Hydraulics of floods upstream of horseshoe canyons and waterfalls

Horseshoe waterfalls are ubiquitous in natural streams, bedrock canyons, and engineering structures. Nevertheless, water flow patterns upstream of horseshoe waterfalls are poorly known and likely differ from the better studied case of a one-dimensional linear step because of flow focusing into the horseshoe. This is a significant knowledge gap because the hydraulics at waterfalls controls sedim...

Epidemiology of Alcohol-Related Accidents and the Grand Rapids Study.

Although it was evident from the early years of this century that alcohol was associated with motor vehicle injury, and although strict laws were enacted in both the U.S. and elsewhere imposing severe penalties for drunken driving, in the U.S. drinking and driving was so widespread that it was generally not viewed as a major offense. Severe penalties were rarely imposed, and the practice of red...