In 1938 Dodd, Buddingh and Johnson observed that the virus of herpes simplex could be isolated with ease from typical cases of aphthous stomatitis in infants, so providing presumptive evidence of its etiological association with the disease. In the following two years this work was extended by Burnet and Lush (1939) and Burnet and Williams (1989). They confirmed that the virus could be isolated...

how do you feel about comments that this year's team doesn't throw the ball enough ? A: It's certainly true these days that the better you throw, the more you throw. We'd like to throw more, and we hope to in the future. We also realize that it's a fallacy to wait until third down to throw. We're starting to throw more on first down—probably 50% of the time if you check on it. Of course it can ...

BACKGROUND AND STUDY AIMS This case report demonstrates successful endoscopic treatment of a persistent gastrocutaneous fistula after removal of a percutaneous endoscopic gastrostomy (PEG) in a 21-year-old patient with mucoviscidosis after lung transplantation. Because the initial OTSC clip (gastric) did not close the fistula sufficiently, we had to remove it and replace it with a larger OTSC c...

OBJECTIVE Trichloroacetic acid (TCAA), or trichloroethanoic acid, is a chemical analogue of acetic acid where three methyl group hydrogen atoms are replaced by chlorine. TCAAs are also abbreviated and referred to as TCAs, causing confusion with the psychiatric antidepressant drug class, especially among patients. TCAAs exist in dermatological treatments such as chemical peels or wart chemoablat...

This paper defines algorithm engineering as a general methodology for algorithmic research. The main process in this methodology is a cycle consisting of algorithm design, analysis, implementation and experimental evaluation that resembles Popper’s scientific method. Important additional issues are realistic models, algorithm libraries, benchmarks with real-world problem instances, and a strong...

Using robots to teach programming is a method to enthuse young people about computer sciences. They are applied by colleges as well as by schools. To rouse young people ́s enthusiasm for technology, the Department of Computer Science – University of Applied Sciences Technikum Wien offers robotic classes at a kindergarten for pre-school children (aged five to six years). Simultaneously, they are ...

FIVE-AND-FORTY years have elapsed since Ehrenberg published his classification of the Rotifera, and his system still holds its ground. The mere statement of the fact is high praise; for what have not classifiers altered, and attempted to alter, during the last half century ? Not that his classification has escaped challenge. It was sharply criticised in the ' Histoire naturelle des Zoophytes*by...

An initial look at the term PU1-poseful activity suggests it would be difficult to define except in terms of the individual. Because purposeful activities are unique constructions for individuals, the term eludes definition as a conceptual whole. Elude, however, does not mean defy. To elude is to hide, to evade exposure. That the profession of occupational therapy has only recently attempted to...

Kelner (Sci. American, 184, 22, 1951) reported that the reactivation spectrum for Streptomycee gri8eu is very similar to the absorption spectrum for iron porphyrin systems, while that of Escherichia coli is somewhat different. Latarjet et al. (J. Gen. Physiol., 35, 455, 1952) reactivated irradiated microorganisms by catalase, and Berger et al. (J. Bacteriol., 65, 539, 1953) found that sodium az...