Picture child's feet next to pens, pencils and paper

Open Access research that is helping to improve educational outcomes for children

Strathprints makes available scholarly Open Access content by researchers in the School of Education, including those researching educational and social practices in curricular subjects. Research in this area seeks to understand the complex influences that increase curricula capacity and engagement by studying how curriculum practices relate to cultural, intellectual and social practices in and out of schools and nurseries.

Research at the School of Education also spans a number of other areas, including inclusive pedagogy, philosophy of education, health and wellbeing within health-related aspects of education (e.g. physical education and sport pedagogy, autism and technology, counselling education, and pedagogies for mental and emotional health), languages education, and other areas.

Explore Open Access education research. Or explore all of Strathclyde's Open Access research...

Shear viscosity and nonlinear behaviour of whole blood under large amplitude oscillatory shear

Sousa, P.C. and Carneiro, J. and Vaz, R. and Cerejo, A. and Pinho, F.T. and Alves, M.A. and Oliveira, Monica (2014) Shear viscosity and nonlinear behaviour of whole blood under large amplitude oscillatory shear. Biorheology, 50 (5-6). pp. 269-282. ISSN 0006-355X

[img] PDF (Oliveira M - Pure - Shear viscosity and nonlinear behaviour of whole blood under large amplitude oscillatory shear Jan 2014)
Oliveira_M_Pure_Shear_viscosity_and_nonlinear_behaviour_of_whole_blood_under_large_amplitude_oscillatory_shear_Jan_2014.pdf
Final Published Version

Download (389kB)

Abstract

We investigated experimentally the rheological behavior of whole human blood subjected to large amplitude oscillatory shear under strain control to assess its nonlinear viscoelastic response. In these rheological tests, the shear stress response presented higher harmonic contributions, revealing the nonlinear behavior of human blood that is associated with changes in its internal microstructure. For the rheological conditions investigated, intra-cycle strain-stiffening and intra-cycle shear-thinning behavior of the human blood samples were observed and quantified based on the Lissajous–Bowditch plots. The results demonstrated that the dissipative nature of whole blood is more intense than its elastic component. We also assessed the effect of adding EDTA anticoagulant on the shear viscosity of whole blood subjected to steady shear flow. We found that the use of anticoagulant in appropriate concentrations did not influence the shear viscosity and that blood samples without anticoagulant preserved their rheological characteristics approximately for up to 8 minutes before coagulation became significant.