Don’t forget Gonococcus!

Studies on Gonococcus Infection

The four colony types of several different strains of gonococci were isolated by selective transfers on agar. These colony variants differed in the degree of autoagglutination which occurred when they were grown in fluid medium. It was found that this clumping behavior was related to the colonial type, with type 2 isolates exhibiting the greatest autoagglutination followed by types 3, 1, and 4....

Surface structures of the gonococcus.

The capsule of the gonococcus

16 strains of Neisseria gonorrhoeae were subjected to several established techniques for capsule demonstration by light microscopy. In all strains examined, encapsulation of the gonococcus was demonstrated. Although the capsules were somewhat more easily seen in strains recently isolated from clinical material, organisms that had been passaged for several years also were encapsulated as were al...

Forget It!

We encountered the need for a theory of forgetting in our work on Cognitive Robotics. 1 In our effort to control an autonomous robot, we imagine the robot has a knowledge base representing the initial world state. As the robot performs actions, she needs to bring the knowledge base up to date. To do so, she needs to forget about all the facts that are no longer true, and in such a way that this...

The Carbohydrates of Gonococcus and Meningococcus

The alcohol-insoluble polysaccharides of gonococcus and meningococcus were found to contain 4.2 and 3.7 per cent nitrogen respectively, to be protein-free by chemical test, to reduce FehIing-Benedict solution only after hydrolysis. They were non-toxic for rabbits and mice, and failed to engender antibodies (precipitins) in rabbits. They produced no cutaneous reactions in normal, snuffle-free ra...