Results 31 to 40 of about 617 (165)

Synchronization and metachronal waves of elastic cilia caused by unsteady viscous flow

Physical Review Research
Hydrodynamic coordination of cilia is ubiquitous in biology. It is commonly modeled using the steady Stokes equations. The flow around ciliated cells, however, exhibits finite-time vorticity diffusion, requiring a dynamical description.
Albert von Kenne, Sonja Schmelter, Holger Stark, Markus Bär   +3 more
doaj   +2 more sources

Inhibitory circuit motifs in Drosophila larvae generate motor program diversity and variability. [PDF]

PLoS Biology
How do neural networks generate and regulate diversity and variability in motor outputs with finite cellular components? Here we examine this problem by exploring the role that inhibitory neuron motifs play in generating mixtures of motor programs in the
Jacob Francis, Caius R Gibeily, William V Smith, Isabel S Petropoulos, Michael Anderson, William J Heitler, Astrid A Prinz, Stefan R Pulver   +7 more
doaj   +2 more sources

Swimming ability and flagellar motility of sperm packets of the volvocine green alga Pleodorina starrii. [PDF]

PLoS ONE
Eukaryotic flagella collectively form metachronal waves that facilitate the ability to cause flow or swim. Among such flagellated and planktonic swimmers, large volvocine genera such as Eudorina, Pleodorina and Volvox form bundles of small male gametes ...
Azusa Kage, Kohei Takahashi, Hisayoshi Nozaki, Tetsuya Higashiyama, Shoji A Baba, Takayuki Nishizaka   +5 more
doaj   +2 more sources

Emergence of metachronal waves in cilia arrays: a hydrodynamic mechanism

, 2016
The present work reports the emergence of metachronal waves in cilia arrays immersed in a two-fluid environment using acoupled lattice Boltzmann - Immersed Boundary method. The periciliary layer (PCL) is confined between the wall and the mucus layer. Its depth is chosen in such a way that the tips of the cilia can penetrate the mucus layer.
Sylvain Chateau, Jean Mercat, Zhe Li, Sébastien Poncet, Julien Favier, Umberto D’Ortona   +5 more
openalex   +3 more sources

Influence of radially magnetic field properties in a peristaltic flow with internal heat generation: Numerical treatment

Case Studies in Thermal Engineering, 2021
This article investigates the impact of radially varying magnetic field during the peristaltically flowing nanofluid in a finite flexible tube. The inner surface of axisymmetric tube is filled with metachronal waves of cilia. Flow is provoked as a result
Imran Haider Qureshi, Muhammad Awais, Saeed Ehsan Awan, Muhammad Nasir Abrar, Muhammad Asif Zahoor Raja, Sayer Obaid Alharbi, I. Khan   +6 more
doaj   +1 more source

Significance of Slippage and Electric Field in Mucociliary Transport of Biomagnetic Fluid

Lubricants, 2021
Shear stress at the cilia wall is considered as an imperative factor that affects the efficiency of cilia beatings as it describes the momentum transfer between the fluid and the cilia.
Sufian Munawar
doaj   +1 more source

Influence of metachronal ciliary wave motion on peristaltic flow of nanofluid model of synovitis problem

AIP Advances, 2022
In this article, we have considered the effect of metachronal ciliary wave motion on the peristaltic flow of the Buongiorno nanofluid model for the synovitis problem.
Asha S. Kotnurkar, Namrata Kallolikar
doaj   +1 more source

Flow assessment of the shear rate dependent viscoelastic fluid: Application of biomechanics in growing human embryo transport

Alexandria Engineering Journal, 2021
The present paper theoretically accords a biomechanical model with a brief biological and mathematical description of the growing embryo transport in the human fallopian tube.
H. Ashraf, A.M. Siddiqui, M.A. Rana, G.A. Gawo   +3 more
doaj   +1 more source

Insight into the cilia motion of electrically conducting Cu-blood nanofluid through a uniform curved channel when entropy generation is significant

Alexandria Engineering Journal, 2022
The energy loss during the beating cilia phenomenon in the human stomach causing acidity in the blood flow under certain conditions has been a serious topic in the modern medical field.
A. Riaz, Shahah Almutairi, Sharifah E. Alhazmi, Anber Saleem, S. Nadeem, Anas Abdelrahman   +5 more
doaj   +1 more source

Rheological fluid motion in tube by metachronal waves of cilia [PDF]

Applied Mathematics and Mechanics, 2017
This paper presents a theoretical study of a non-linear rheological fluid transport in an axisymmetric tube by cilia. However, an attempt has been made to explain the role of cilia motion on the transport of fluid through the ductus efferentes of the male reproductive tract.
Maiti, S., Pandey, S. K.
openaire   +2 more sources