منابع مشابه
Activity regulates programmed cell death of zebrafish Rohon-Beard neurons.
Programmed cell death is a normal aspect of neuronal development. Typically, twice as many neurons are generated than survive. In extreme cases, all neurons within a population disappear during embryogenesis or by early stages of postnatal development. Examples of transient neuronal populations include Cajal-Retzius cells of the cerebral cortex and Rohon-Beard cells of the spinal cord. The nove...
متن کاملTo Beard or Not to Beard? Bacterial Shedding Among Surgeons.
Beards in the operating room are controversial because of their potential to retain and transmit pathogenic organisms. Many bearded orthopedic surgeons choose to wear nonsterile hoods in addition to surgical masks to decrease contamination of the operative field. The goal of this study was to determine whether nonsterile surgical hoods reduce the risk of bacterial shedding posed by beards. Bear...
متن کاملFLO1 Is a Variable Green Beard Gene that Drives Biofilm-like Cooperation in Budding Yeast
The budding yeast, Saccharomyces cerevisiae, has emerged as an archetype of eukaryotic cell biology. Here we show that S. cerevisiae is also a model for the evolution of cooperative behavior by revisiting flocculation, a self-adherence phenotype lacking in most laboratory strains. Expression of the gene FLO1 in the laboratory strain S288C restores flocculation, an altered physiological state, r...
متن کاملEric Warrant
also argued that politicians should do more to counter the danger posed by climate change “ravaging” the biosphere. He called for massive investment in technological solutions such as biofuels. “They deserve a priority and commitment from government akin to that accorded to the Manhattan project to build the first atom bomb or the Apollo moon landing project in the 60s.” Also at the festival, f...
متن کاملCadherins in maternal-foetal interactions: red queen with a green beard?
Cadherins are homophilic cell surface adhesion proteins, some of which mediate interactions between maternal and foetal tissues during mammalian pregnancy. David Haig suggested that these proteins may exhibit 'green-beard gene' effects, whereby the nature of binding between identical alleles in mother and foetus leads to differential levels of resource transfer. The selfish effects of such self...
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ژورنال
عنوان ژورنال: Nature
سال: 1998
ISSN: 0028-0836,1476-4687
DOI: 10.1038/28948