منابع مشابه
Stopping cells from dividing
than inhibiting cell division? The quest to identify means to stop cells from proliferating has driven generations of researchers to investigate the mechanisms regulating the cell division cycle. The cell cycle consists of several phases. Progression from one phase to the next depends on the activity of specific proteins. In order to pass the checkpoints between two phases, several classes of p...
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The scaffolding that holds chromosome pairs together plays a key role in limiting the levels of double-strand breaks.
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Robotic surgery is a reality. In order to to understand how new robots work is interesting to know the history of ancient (see part i) and modern robotics. The desire to design automatic machines imitating humans continued for more than 4000 years. Archytas of Tarentum (at around 400 a.C.), Heron of Alexandria, Hsieh-Fec, Al-Jazari, Bacon, Turriano, Leonardo da Vinci, Vaucanson o von Kempelen w...
متن کاملStopping schistosomes from 'monkeying-around' in chimpanzees.
Ngamba Island Chimpanzee Sanctuary (NICS) in Lake Victoria, Uganda is currently home to 44 wild-borne, semi-captive chimpanzees. Despite regular veterinary health checks, it only came to light recently that many animals, and sanctuary staff, were naturally infected with Schistosoma mansoni. Indeed, local schistosome transmission appears firmly engrained for intermediate snail hosts can be found...
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Given a random time, we give some characterizations of the set of martingales for which the stopping theorems still hold. We also investigate how the stopping theorems are modified when we consider arbitrary random times. To this end, we introduce some families of martingales with remarkable properties. DOI: https://doi.org/10.1016/j.spa.2006.06.005 Posted at the Zurich Open Repository and Arch...
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ژورنال
عنوان ژورنال: The Journal of Hellenic Studies
سال: 1883
ISSN: 0075-4269,2041-4099
DOI: 10.2307/623366