Results 11 to 20 of about 52,619 (331)
Measurement of ciliary beating and fluid flow in the zebrafish adult telencephalon
STAR Protocols, 2022 Summary: Motile cilia are hair-like structures that move and propel fluid, playing important roles in the physiology of organs. Here, we present a protocol to visualize and measure ciliary beating and cerebrospinal fluid (CSF) flow in the telencephalon ...
Inyoung Jeong +3 more
doaj +3 more sources
Domiciliary High-Flow Nasal Therapy in Primary Ciliary Dyskinesia [PDF]
Cureus, 2023 We report the case of an adolescent with severe primary ciliary dyskinesia (PCD) phenotype associated with a rare genotype. His clinical condition deteriorated, with daily cough and breathlessness, hypoxemia, and lung function decline. Despite being started on home noninvasive ventilation (NIV), the symptoms progressed to dyspnea at rest and thoracic ...
Rita Gomes +4 more
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Point torque representations of ciliary flows [PDF]
Physical Review Fluids, 2023 Ciliary flows are generated by a vast array of eukaryotic organisms, from unicellular algae to mammals, and occur in a range of different geometrical configurations. We employ a point torque -- or `rotlet' -- model to capture the time-averaged ciliary flow above a planar rigid wall. We demonstrate the advantages (i.e.
Siluvai Antony Selvan +3 more
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Reorganisation of complex ciliary flows around regenerating Stentor coeruleus [PDF]
Philosophical Transactions of the Royal Society B: Biological Sciences, 2019 SummaryThe phenomenon of ciliary coordination has garnered increasing attention in recent decades, with multiple theories accounting for its emergence in different contexts. The heterotrich ciliateStentor coeruleusis a unicellular organism which boasts a number of features which present unrivalled opportunities for biophysical studies of cilia ...
Kirsty Y. Wan +7 more
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Electroosmotically actuated peristaltic-ciliary flow of propylene glycol + water conveying titania nanoparticles. [PDF]
Sci Rep, 2023 AbstractThe main focus of this article is to mathematically formulate the microfluidics-based mechanical system for nanofluids. A 50:50 mixture of propylene glycol (PG) and water is used as a heat transfer fluid because of its tremendous anti-freezing properties, and nontoxicity and it is safe to be utilized at the domestic level.
Akram J, Akbar NS.
europepmc +4 more sources
Ciliary propulsion through non-uniform flows [PDF]
Journal of Fluid MechanicsThe classical paper by Lighthill (Commun. Pure Appl. Maths, vol. 109, 1952, p. 118) on the propulsion of ciliated microorganisms has become the reference against which many modern studies on swimming in low Reynolds number are compared. However, Lighthill's study was limited to propulsion in a uniform flow, whereas several biologically relevant ...
Hervé Nganguia, D. Palaniappan
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Is the Zero Reynolds Number Approximation Valid for Ciliary Flows? [PDF]
Physical Review Letters, 2019 Stokes equations are commonly used to model the hydrodynamic flow around cilia on the micron scale. The validity of the zero Reynolds number approximation is investigated experimentally with a flow velocimetry approach based on optical tweezers, which allows the measurement of periodic flows with high spatial and temporal resolution.
Da Wei +3 more
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Ciliary flows in corals ventilate target areas of high photosynthetic oxygen production [PDF]
Current Biology, 2022 Most tropical corals live in symbiosis with Symbiodiniaceae algae whose photosynthetic production of oxygen (O2) may lead to excess O2 in the diffusive boundary layer (DBL) above the coral surface. When flow is low, cilia-induced mixing of the coral DBL is vital to remove excess O2 and prevent oxidative stress that may lead to coral bleaching and ...
César O. Pacherres +4 more
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Effects of Dorzolamide on Choroidal Blood Flow, Ciliary Blood Flow, and Aqueous Production in Rabbits [PDF]
Investigative Opthalmology & Visual Science, 2009 To determine the effects of topical dorzolamide (a carbonic anhydrase inhibitor) on choroidal and ciliary blood flow and the relationship between ciliary blood flow and aqueous flow.The experiments were performed in four groups of pentobarbital-anesthetized rabbits treated with topical dorzolamide (2%, 50 microL).
Herbert A. Reitsamer +3 more
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Ciliary blood flow and aqueous humor production [PDF]
Progress in Retinal and Eye Research, 2011 Aqueous humor production is a metabolically active process sustained by the delivery of oxygen and nutrients and removal of metabolic waste by the ciliary circulation. This article describes our investigations into the relationship between ciliary blood flow and aqueous humor production.
J W, Kiel +4 more
openaire +2 more sources