This paper analyzes the peristaltic flow of an incompressible micropolar nanofluid in a tapered asymmetric channel in the presence of thermal radiation and heat sources parameters. The rotation of the nanoparticles is incorporated in the flow model. The equations governing the nanofluid flow are modeled and exact solutions are managed under long wavelength and flow Reynolds number and long wave...

The effects of the crude, methanol, hexane TLC and acetone extractable portion of strebulus as per on frog's heart and smooth muscle of rabbit were studied. The different extracts of S. asper showed a stimulant effect on frog's heart while the crude and methanol extracts showed not much alteration in the peristaltic activity of smooth muscle or rabbit. Methanol, hexane and acetone extractable p...

AIMS Pseudomyxoma peritonei syndrome is a rare disease that originates from an adenomatous lesion of the appendix that, from pressure, perforates to gain access to the free peritoneal cavity. The relative sparing of the small bowel surfaces allows for complete cytoreduction even though many kilograms of mucinous tumour exist at other sites within the abdomen and pelvis. The purpose of this stud...

We analyzed heart wall motion and blood flow dynamics in chicken embryos using in vivo optical coherence tomography (OCT) imaging and computational fluid dynamics (CFD) embryo-specific modeling. We focused on the heart outflow tract (OFT) region of day 3 embryos, and compared normal (control) conditions to conditions after performing an OFT banding intervention, which alters hemodynamics in the...

Peristaltic pumping by wavelike contractions is a fundamental biomechanical mechanism for fluid and material transport and is used in the esophagus, intestine, oviduct, and ureter. While peristaltic pumping of a Newtonian fluid is well understood, in many important settings, as in the fluid dynamics of reproduction, the fluids have non-Newtonian responses. Here, we present a numerical method fo...

Fig 2 Three channel oesophageal manometry showing an increase in amplitude and velocity ofperistalsis when head rotated and tilted towards the left shoulder. (a) Shows two representative swallows with 5 ml boluses while head in the midline. Peristaltic waves are broad based and oflow amplitude. (b) Shows two representative swallows with 5 ml boluses while head rotated to the left. Amplitude of ...

We studied the opossum sphincter of Oddi (SO) because in this species the SO is approximately 3 cm in length and its extraduodenal location permits recording of motor activity with negligible interference from duodenal motor activity. The SO segment of 120 animals was evaluated by one or more of the following: (a) intraluminal manometry; (b) electromyography; (c) common bile duct (CBD) flow mon...