Results 1 to 10 of about 535,368 (303)

Echogenic foci with comet-tail artifact in resected thyroid nodules: Not an absolute predictor of benign disease. [PDF]

open access: yesPLoS ONE, 2018
The purpose of this study was to evaluate the frequency of echogenic foci with comet-tail artifact in histologically proven thyroid nodules, and to determine the types of echogenic foci with comet-tail artifact that are associated with malignancy.
Hongxun Wu   +4 more
doaj   +3 more sources

Comet tail artifact on ultrasonography: is it a reliable finding of benign gallbladder diseases? [PDF]

open access: yesUltrasonography, 2019
Purpose The aim of this study was to evaluate whether the comet tail artifact on ultrasonography can be used to reliably diagnose benign gallbladder diseases. Methods This retrospective study reviewed the clinical findings, imaging findings, preoperative
Sung Hoon Oh   +2 more
doaj   +3 more sources

Blasting off on an actin comet tail. [PDF]

open access: goldPLoS Biology, 2009
​CellsCells have structure and the ability to move, thanks in part to the actin cytoskeleton, a dynamic cellular scaffolding that facilitates many cellular processes. Actin is mostly concentrated near the outer membrane of the cell, where it is involved in such processes as the formation of membrane protrusions at the leading edges of migrating cells ...
Caitlin Sedwick
doaj   +6 more sources

Autoimmunity as the comet tail of COVID-19 pandemic. [PDF]

open access: yesWorld J Clin Cases, 2020
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection can give rise to different clinical manifestations that are directly related to viral tissue damage or indirectly induced by the antiviral immune response.
Talotta R, Robertson E.
europepmc   +2 more sources

Three Dimensional MHD Simulationof Comet Hale-Bopp Tail

open access: goldمجلة بغداد للعلوم, 2008
The interaction between comet Hale-Bopp tail with the solar wind is investigated in the present paper using magneto-hydrodynamic (MHD) numerical simulation, which accounts for the presence of the interplanetary magnetic field (IMF).
Baghdad Science Journal
doaj   +3 more sources

The comet tail artifact.

open access: yesJournal of Ultrasound in Medicine, 1982
A description and explanation of an unexpected echographic appearance in a patient who had sustained an abdominal shotgun wound is presented. In the B-scans, a trail of dense continuous echoes, simulating a comet tail, is seen distal to each lead pellet. This comet tail appearance is shown to be a type of reverberation artifact.
M S Lapayowker   +4 more
openaire   +3 more sources

The Isolated Comet Tail Pseudopodium of Listeria monocytogenes: A Tail of Two Actin Filament Populations, Long and Axial and Short and Random [PDF]

open access: bronzeJournal of Cell Biology, 1997
Listeria monocytogenes is driven through infected host cytoplasm by a comet tail of actin filaments that serves to project the bacterium out of the cell surface, in pseudopodia, to invade neighboring cells.
A. Sechi, J. Wehland, J. Small
semanticscholar   +2 more sources

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