Results 231 to 240 of about 75,941 (270)

Point‐Of‐Care Ultrasound in Emergency Departments in Australia/New Zealand: An Emergency Physician's Perspective

open access: yesJournal of Medical Radiation Sciences, Volume 72, Issue 1, Page 3-7, March 2025.
This brief overview of the current state of clinician performed focused ultrasound (Emergency PoCUS) by emergency practitioners in Australia/New Zealand (ANZ) has touched on its history, scope of practice both mandated and context‐dependent, complex embedding in clinical diagnostic reasoning and range of governance issues.
Robyn Brady
wiley   +1 more source

The fission yeast cytokinetic contractile ring regulates septum shape and closure.

open access: yesJ Cell Sci, 2015
Thiyagarajan S   +4 more
europepmc   +1 more source

Schatzki's Rings: Recognition, Significance, and Management. [PDF]

open access: yesClin Gastroenterol Hepatol
Forattini F, Yadlapati R.
europepmc   +1 more source

Formation and function of the polar body contractile ring in Spisula

open access: yesDevelopmental Biology, 2004
Initial studies suggested that spatial organization of the putative polar body contractile ring was determined by the peripheral aster in Spisula [Biol. Bull. 205 (2003) 192].
Cohen, William D   +5 more
exaly   +4 more sources
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Cytokinesis and the contractile ring in fission yeast

Current Opinion in Microbiology, 2001
The fission yeast Schizosaccharomyces pombe provides a genetic model system for the study of cytokinesis. As in many eukaryotes, cell division in the fission yeast requires an actin-myosin-based contractile ring. Numerous components of the contractile ring that function in ring assembly, positioning and contraction have been characterized.
Fred Chang
exaly   +3 more sources

Mechanisms of contractile-ring assembly in fission yeast and beyond [PDF]

open access: yesSeminars in Cell and Developmental Biology, 2010
Most eukaryotes including fungi, amoebas, and animal cells assemble an actin/myosin-based contractile ring during cytokinesis. The majority of proteins implied in ring formation, maturation, and constriction are evolutionarily conserved, suggesting that common mechanisms exist among these divergent eukaryotes.
Jian-Qiu Wu
exaly   +3 more sources

Structural Memory in the Contractile Ring Makes the Duration of Cytokinesis Independent of Cell Size

open access: yesCell, 2009
SummaryCytokinesis is accomplished by constriction of a cortical contractile ring. We show that during the early embryonic divisions in C. elegans, ring constriction occurs in two phases—an initial phase at a constant rate followed by a second phase ...
Ana X Carvalho   +2 more
exaly   +2 more sources

The role of microtubules in contractile ring function

Journal of Experimental Zoology, 1992
AbstractDuring cytokinesis, a cortical contractile ring forms around a cell, constricts to a stable tight neck and terminates in separation of the daughter cells. At first cleavage, Ilyanassa obsoleta embryos form two contractile rings simultaneously. The cleavage furrow (CF), in the animal hemisphere between the spindle poles, constricts to a stable ...
A H, Conrad, A Q, Paulsen, G W, Conrad
openaire   +2 more sources

Contractile ring composition dictates kinetics of in silico contractility

2022
Abstract Constriction kinetics of the cytokinetic ring are expected to depend on dynamic adjustment of ring composition, but the impact of component abundance dynamics on ring constriction is understudied. Computational models generally assume that contractile networks maintain constant composition.
Daniel B. Cortes   +2 more
openaire   +1 more source

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