Major functions of portal-drained viscera (PDV) and liver of cattle include absorption of digestion products and modification of the body's supply of intermediary metabolites. The disproportionately high metabolic rate of PDV and liver (7-13% of body tissues) is exemplified by their oxygen uptake (40-50% of whole body). Extensive metabolism of glucose, volatile fatty acids and amino acids by PD...

Rice black-streaked dwarf virus was shown to contain ten dsRNA segments in a genome with an approximate molecular weight of 18.96 x IO8 or 19.66 x 10’. depending on the buffer employed for electrophoresis in polyacrylamide gels. In coelectrophoreses of genomes from rice black-streaked dwarf and maize rough dwarf virus, all segments coincided electrophoretically except segments 1, 3, and 10. In ...

The endoparasitic wasp Tranosema rostrale (Ichneumonidae) transmits a polydnavirus (PDV) to its host, Choristoneura fumiferana, during oviposition. Unlike most other PDVs examined, the virus of T. rostrale (TrPDV) does not appear to play an important role in suppressing the host cellular immune response. However, it inhibits host metamorphosis. In the present study, TrPDV gene expression was ex...

A workshop was organised to ascertain the current situation with regard to morbillivirus infections in aquatic animals. The great interest generated by the discovery of these new virus infections in 1988 has to some extent abated but much high quality research has continued in this field as the workshop showed. There is some serological evidence that the viruses have continued to circulate in m...

In 1979, Warren was first to observe these bacteria in an inflamed gastric epithelium, and subsequently in peptic ulcer-associated gastritis. In 1981, Marshall starts his research and cultivates the bacteria, performs prospective studies, and administers therapy regimens using antibiotics and bismuth salts. The organism was designated Campylobacter-like after its similarity with said genus. In ...

Photonic Doppler velocimetry (PDV) has rapidly become a standard diagnostic for measuring velocities in dynamic compression research. While free surface velocity measurements are fairly straightforward, complications occur when PDV is used to measure a dynamically loaded sample through a window. Fresnel reflections can severely affect the velocity and time resolution of PDV measurements, especi...