Persistent infection with a variant of influenza C/Ann Arbor/1/50 virus in MDCK cells has been previously reported. However, the precise molecular mechanism of persistence is still unknown. We show that the release of active progeny virus, as tested for by haemagglutination and acetylesterase profiles, does not take place in freshly seeded MDCK cells. Productive virus replication occurs simulta...

Ca2+-triggered SNARE-mediated membrane fusion is essential for neuronal communication. The speed of this process is of particular importance because it sets a time limit to cognitive and physical activities. In this work, we expand the proteoliposome-to-supported bilayer (SBL) fusion assay by successfully incorporating synaptotagmin 1 (Syt1), a major Ca2+ sensor. We report that Syt1 and Ca2+ to...

clinical observations and gross pathological studies have been performed in field cases in order to determine the effect of cleavers (galium aparine) seeds upon the productive traits and the health of broiler chickens. a negative impact upon productive traits (feedconversion ratio, growth rates and equalization) has been observed. the results of our studies allowed assuming that the health of b...

Abstract This longitudinal study explores persistence in research productivity at the individual level over academic lifetime: can highly productive scientists maintain relatively high levels of productivity. We examined careers 2326 Polish full professors, including their lifetime biographical and publication histories. studied promotions publications between (79,027 articles) a 40-year period...