TORNADO AT MOUNDVILLE, ALA

Inhibition of proteinase K by methoxysuccinyl-Ala-Ala-Pro-Ala-chloromethyl ketone. An x-ray study at 2.2-A resolution.

The crystal structure of the transition state analog complex formed covalently between proteinase K and methoxysuccinyl-Ala-Ala-Pro-Ala-chloromethyl ketone was determined by x-ray diffraction methods at a resolution of 2.2 A and refined by constrained least squares to an R factor of 19.8% for the 11864 structure amplitudes greater than 1 sigma F. The chloromethyl ketone group is covalently link...

Tornado Warnings and Tornado Fatalities : The Case of May 22 , 2011 Tornado in Joplin , Missouri

Tornado Forecasting: A Review

Present-day operational tornado forecasting can be thought of in two parts: anticipation of tornadic potential in the storm environment, and recognition of tornadic storms once they develop. The former is a forecasting issue, while the latter is associated with warnings (or so-called nowcasting). This paper focuses on the forecasting aspect of tornadoes1, by dealing primarily with the relations...

Nitrogen a N D Fluorine Dating of Moundville Skeletal Samples

A large group of human bones were excavated during the 1930’s from the Moundville archaeological site in Alabama. If a chronology could be assigned to them, the bones might provide a guide to the changes which took place as Moundville flourished, since pottery and other objects were often buried with the individuals. A recent pottery classification based on style suggests three major time perio...

Tornado Inflicted Damages Pattern

On average, about a thousand tornadoes hit the United States every year. Three out of every four tornadoes in the world, occur in the United States. They damage life and property in their path and they often hit with very little, sometimes no warning. Tornadoes cause approximately 70 fatalities and 1,500 injuries in US every year. The interest of this study is to find whether the fatalities and...