Nitrate concentrations of groundwater are increasing in residential areas. One probable cause is input of nitrogen fertilizers to maintain healthy turfgrass. This study was conducted to evaluate differences in nitrate concentrations in soil water between sites fertilized with chemical or organic fertilizer. To obtain nitrate concentrations leaching below turfgrass and evaluate the impact to gro...

Stanford on Stanley, the winning robot in the DARPA Grand Challenge. Between July 2004 and October 2005, my then-postdoc Michael Montemerlo and I led a team of students, engineers, and professionals with the single vision of claiming one of the most prestigious trophies in the field of robotics: the DARPA Grand Challenge (DARPA 2004).1 The Grand Challenge, organized by the U.S. government, was ...

One way of characterising texts is in terms of the discourse structures on which they appear to be built. Each type of text, or genre, e.g. the sports report, the recipe, the sermon, the proverb, will have associated with it a characteristic organisation of units. In this paper, a general model of the structure of one text type, the story, is described. This model forms the basis of a program w...

F people would be unfamiliar with the iconic eye make-up of the ancient Egyptians. Modern perceptions that the Egyptians used the substance known as kohl for purely cosmetic purposes are not correct. Data from recent studies provide a profound insight into this previously little understood aspect of Egyptian cosmetics and their preparation. Various scientifi c studies have produced detailed ana...

This is a story about three men and a software product named FYI Visual. This story is true. Like all the best stories, there is a moral to this one: good intentions do not guarantee good results. The three men are a physician who dreams of solving an important problem, a CEO who strives to make a software company successful, and an Associate Professor, who lends his academic credentials to sup...