spherules


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spherules

(sfe -rool) Small round particles of rock and wüstite (iron oxide) formed by the solidification of molten meteoritic material that flows off a meteorite during its passage through the Earth's atmosphere. Magnetic spherules can easily be recognized in deep sea sediments. Sizes range typically from 10 μm to 200 μm.
References in periodicals archive ?
Caption: Figure 2: L3 bone biopsy revealing cocci spherules (HE stain, 400x).
Once inhaled into the lungs, conidia are ingested by macrophages, where they germinate into yeast (or spherules for Coccidioides) and replicate.
The spherules are seen as spherical elements with thick walls, 5-60 [micro]m, with numerous, small, globular endospores of 2-5 [micro]m in their interior (4).
Multiple mo-bile spherules in mature cystic teratoma of the ovary', AJR American Journal of Roentgenology, 2001; 176 (Issue 6): pp.
Weissmann, "Phospholipid spherules (liposomes) as a model for biological membranes," Journal of Lipid Research, vol.
Huang, "Monodispersed hard carbon spherules with uniform nanopores," Carbon, vol.
(1), (32) Both are caused by fungi that grow as spore-producing hyphae at environmental temperatures, but as yeasts (spherules or ellipses) at body temperature within the lungs.
Stored uric acid has been described as precipitated spherules of potassium or sodium urates (Mullins 1979).
The report focuses on spherules, or droplets of solidified molten rock expelled by the impact of a comet or meteor.
Microscopic analysis of lung, omentum, spleen, lymph node, kidney, and liver were all diagnostic for spherules and endospores consistent with C.
Boslough asked to have some of the evidence--carbon spherules associated with an asteroid impact--carbon dated.