Claudius Method of Preparing Catgut.

An improved method of preparing nisin.

1. Weights and ,-glucuronidase activity have been determined in lymphatic organs ofrats (lymph nodes of the neck, thymus and spleen) from 4 hr. to 15 days after total-body irradiation (200, 400 and 600 r.). 2. The activity of the enzyme increased in the first period after the irradiation (from 4 hr. to 5 days) when the tissues underwent a rapid decrease in weight. Histological examination showe...

Silk, Catgut, and Wound Infections *

Whether absorbable or non-absorbable suture material should be used in the repair of wounds has long been a highly controversial subject. Popular favor has swung from one extreme to the other repeatedly in the last century. Lord Lister was responsible for the initial popularity of catgut, just as Kocher was one of the first to abandon its use in favor of a non-absorbable material, i.e., silk. H...

Models, Sherlock Holmes and the Emperor Claudius

Recently, a number of authors have suggested that we understand scientific models in the same way as fictional characters, like Sherlock Holmes. The biggest challenge for this approach concerns the ontology of fictional characters. I consider two responses to this challenge, given by Roman Frigg, Ronald Giere and Peter Godfrey-Smith, and argue that neither is successful. I then suggest an alter...

Buried Silk, Catgut and Strabismus Sutures.

A novel method for preparing microplastic fibers

Microscopic plastic (microplastic, 0.1 µm-5 mm) is a widespread pollutant impacting upon aquatic ecosystems across the globe. Environmental sampling has revealed synthetic fibers are prevalent in seawater, sediments and biota. However, microplastic fibers are rarely used in laboratory studies as they are unavailable for purchase and existing preparation techniques have limited application. To f...