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  • cells
  • In general, external alpha radiation is not harmful since alpha particles are effectively shielded by a few centimeters of air, a piece of paper, or the thin layer of dead skin cells. (enotes.com)
  • potentially
  • Inhibition of laying, reduced fertility and hatchability, and teratogenesis in hens ingesting even a small amount of P4 could potentially have, an effect on populations greater than that exhibited by direct mortality. (usgs.gov)
  • Inhale
  • Inhale a very small but alpha emitting dirt particle (such as dust emitted by exploding and melting nuclear reactors), it won't give you a big dosis ( because that's averaged on the whole body), but it will damage the few cubic millimetres around it in the lungs, and will kill you slowly and surely. (slashdot.org)
  • engulf
  • Further, the 2D model can explain why some nonspherical particles engulf fastest (not at all) when presented to the membrane tip-first (lying flat). (pnas.org)
  • argyria
  • The study shows, for the first time, how ingesting too much silver can cause argyria , which is a rare condition that turns a patient's skin a striking shade of grayish blue. (redorbit.com)
  • nanoparticles
  • And they are "nanoparticles" - a family of ultra-small particles that have been raising safety concerns within the scientific community and elsewhere for some years. (theconversation.com)
  • Our bodies are pretty well adapted to handling naturally occurring nanoscale particles - you probably ate some last time you had burnt toast (carbon nanoparticles), or poorly washed vegetables (clay nanoparticles from the soil). (theconversation.com)
  • tissues
  • Thus, according to the isotopic composition of the consumers' tissues, an item assimilated among those ingested is precisely indicated (Fry & Arnold, 1982). (scielo.br)
  • intracellular
  • Permanent cytoskeletal reorganizations and the intracellular transport cause a randomization of the magnetic dipole particles, which is reflected in a decay of the magnetic lung field and is called relaxation. (biomedcentral.com)
  • depends
  • In both processes, engulfment by the cell depends critically on both particle shape and orientation. (pnas.org)
  • harmful
  • Toxicologists have started paying close attention to such particles , just in case their tiny size makes them more harmful than otherwise expected. (theconversation.com)
  • lung
  • All magnetized particles induce a weak magnetic field of the lung, which was detected by a sensitive SQUID (superconducting quantum interference device) sensor. (biomedsearch.com)
  • form
  • Silver metal particles aren't very likely to make it from the GI tract to the bloodstream, but in salt form they are easily absorbed. (redorbit.com)
  • Any silver metal ingested is just the raw material to create that bioavailable salt, so ingesting silver in any form, nano or not, would have basically the same effect. (redorbit.com)
  • Unfortunately, alpha particles can be inhaled or ingested, usually in the form of radon gas. (howstuffworks.com)
  • rate
  • An analysis of the shear rate and stress dependence of particle twisting allows correlating the rheological compartments to cytoskeletal subunits, in which microtubules mediate the pure viscous (non-recoverable) shear and microfilaments mediate the viscoelastic (recoverable) behavior. (biomedsearch.com)
  • it reflects either the average number of particles ingested or the rate at which particles are cleared from the blood or culture medium. (thefreedictionary.com)
  • external
  • The retained particles were magnetized and aligned in an external 100 mT magnetic field. (biomedsearch.com)
  • External radiation exposure is a topic, but is used as a decoy to camouflage the much more serious and very hard to quantify internal exposures from ingested and inhaled particles, which will simply kill you on the long run. (slashdot.org)
  • Internal exposure to beta particles causes much more severe symptoms than external exposure. (howstuffworks.com)
  • found
  • The research, commissioned and published by Friends of the Earth ( FoE ) - an environmental advocacy group - analyzed six commonly available off-the-shelf baby formulas (liquid and powder) and found nanometer-scale needle-like particles in three of them. (theconversation.com)