The Staphylococcus Problem
A ubiquitous parasite has acquired resistance to antibiotics and is causing epidemics of purulent infection in hospitals. Control calls for renewed research and a return to aseptic and antiseptic routines
Volume 200, Issue 1
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Features
Dying Stars
The white dwarfs, with their thermonuclear fires long since extinguished, are cooling down to the temperature of space. They are a portent of the inexorable fate of all other stars
The Microcirculation of the Blood
The primary purpose of the circulatory system is served by the microscopic vessels in which the blood flows from the arteries to the veins and thereby nourishes all the tissues of the body
The Atomic Nucleus
How do physicists presently visualize it? Curiously, different approaches to the nucleus suggest different pictures, notably the liquid-drop model, the shell model and the optical model
Molecular Sieves
The zeolite minerals, whose crystals contain a myriad of minute pores, have made possible a new branch of chemical technology. They can perform precise separations of very similar molecules
Trace-Element Deserts
Throughout the world potential farmland goes to waste for the lack of elements required in traces by plants and animals. By rectifying such deficiencies, Australia hopes to reclaim some 300 million acres
Salt Glands
A special organ which eliminates salt with great efficiency enables marine birds to meet their fluid needs by drinking sea water. Similar organs have been found in marine reptiles
A Witness at the Scopes Trial
In 1925 a Tennessee teacher of biology named Thomas Scopes was tried for teaching the theory of evolution. An expert witness at the trial relates how evolution lost in court but won in the eyes of the nation