منابع مشابه
Vitamin D and HIV: shine a light
Over the past several years there has been growing interest in the high prevalence of vitamin D deficiency in both the general population and among people living with HIV infection. Vitamin D deficiency in the setting of HIV infection is likely multi-factorial with contributions from environmental factors as well as possible associations with HIV therapy. This lecture will highlight recent data...
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An opsin receptor has a central role in the production and release of eggs by female jellyfish.
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Recent application of fluorescence microscopy to the study of the bacterial cell cycle has revealed the existence of a cytoskeletal element - once thought to occur only in eukaryotic cells - that mediates cytokinesis, and possibly another involved in chromosome segregation.
متن کاملSomewhere on the sun, light does not shine out
Work during 1870-1970 had shown that spherically symmetric electromagnetic, gravitational, or massless-neutrino energy flows were impossible. These impossibilities were thought by their discoverers to be isolated results dependent on the field equations obeyed by these kinds of energy. But we now show that they are consequences of extremely general and simple topological impossibilities, and ha...
متن کاملWhat's on the mind of a jellyfish? A review of behavioural observations on Aurelia sp. jellyfish.
Aurelia sp. (scyphozoa; Moon Jellies) are one of the most common and widely distributed species of jellyfish. Their behaviours include swimming up in response to somatosensory stimulation, swimming down in response to low salinity, diving in response to turbulence, avoiding rock walls, forming aggregations, and horizontal directional swimming. These are not simple reflexes. They are species typ...
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ژورنال
عنوان ژورنال: Molecular Reproduction and Development
سال: 2011
ISSN: 1040-452X
DOI: 10.1002/mrd.21379