Disturbance is an important factor that shapes plant community structure in firedependent grasslands, and alteration of disturbance regimes can have large consequences on species richness and species composition. However, the response of vegetation to disturbance may change with environmental context. I re-sampled 59 permanent vegetation plots in the longleaf pine ecosystem twenty years after t...

The methodology in the seismic design of slopes has evolved with technological advancement and development geotechnical engineering, methods great limitations such as pseudostatic analysis to rigorous that require a lot information for better understanding behavior soil dynamic analysis. This article develops procedure, comparison application simplified earthquake-induced displacement methods, ...

Several workers have provided evidence that deacetylation occurs both in vivo and in vitro. Abbott (1942) found that, when N-acetylglycine and sodium benzoate were administered orally to rabbits, the increase in hippuric acid excretion was only slightly less than when the corresponding amount of glycine was given with the benzoate. Elson, Goulden & Warren (1946) found that the rat deacetylated ...

In this volume Dr Bray-a former vice-president of the Royal Society for Tropical Medicine and Hygiene-seeks to show "that the course of history has been and can be affected by the major pandemics of infectious disease". "Practitioner history" generally enjoys low esteem in the eyes of medical historians, and-with some very distinguished exceptions-this is all too often justified by an anecdotal...