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Biorheology is an international interdisciplinary journal that publishes research on the deformation and flow properties of biological systems or materials. It is the aim of the editors and publishers of
Biorheology to bring together contributions from those working in various fields of biorheological research from all over the world. A diverse editorial board with broad international representation provides guidance and expertise in wide-ranging applications of rheological methods to biological systems and materials.
The aim of biorheological research is to determine and characterize the dynamics of physiological processes at all levels of organization. Manuscripts should report original theoretical and/or experimental research promoting the scientific and technological advances in a broad field that ranges from the rheology of macromolecules and macromolecular arrays to cell, tissue and organ rheology. In all these areas, the interrelationships of rheological properties of the systems or materials investigated and their structural and functional aspects are stressed.
The scope of papers solicited by
Biorheology extends to systems at different levels of organization that have never been studied before, or, if studied previously, have either never been analyzed in terms of their rheological properties or have not been studied from the point of view of the rheological matching between their structural and functional properties. This biorheological approach applies in particular to molecular studies where changes of physical properties and conformation are investigated without reference to how the process actually takes place, how the forces generated are matched to the properties of the structures and environment concerned, proper time scales, or what structures or strength of structures are required.
Biorheology invites papers in which such 'molecular biorheological' aspects, whether in animal or plant systems, are examined and discussed. While we emphasize the biorheology of physiological function in organs and systems, the biorheology of disease is of equal interest. Biorheological analyses of pathological processes and their clinical implications are encouraged, including basic clinical research on hemodynamics and hemorheology.
In keeping with the rapidly developing fields of mechanobiology and regenerative medicine,
Biorheology aims to include studies of the rheological aspects of these fields by focusing on the dynamics of mechanical stress formation and the response of biological materials at the molecular and cellular level resulting from fluid-solid interactions. With increasing focus on new applications of nanotechnology to biological systems, rheological studies of the behavior of biological materials in therapeutic or diagnostic medical devices operating at the micro and nano scales are most welcome.
Abstract: A qualitative analysis shows that it is better to consider blood as a heterogeneous medium so that the behaviour of red blood cell (RBC) and behaviour of plasma could be combined to arrive at the rheological behaviour of blood. The existence of an elastic membrane, over a deformable RBC, indicates that when present a10ngwith the incompressible plasma during flow, the membrane would absorb energy to undergo modification to be able to transmit the force used for the flow process. This absorption results in an unavailable part of the supplied energy.
vol. 13, no. 4, pp. 235-237, 1976
Abstract: From a qualitative analysis it has been suggested that during the momentum transport computations, it is necessary to recognize a pure alignment process and an alignment with deformation process for the red blood cell (RBC). It has been contended that energy is supplied for the latter process, and that the energy supplied could be released by the membrane of RBC. This energy, when released, is responsible for the random movements of RBC, the collisions between RBC, the orientation of RBC and the disaggregation of RBC. Once that energy is accounted for, the above mentioned processes do not call for extra…expenditure of energy.
vol. 13, no. 4, pp. 239-242, 1976
Abstract: In the present paper, a two layered Poiseuille flow problem has been formulated and its analytic solution has been obtained. It is shown that the classical Poiseuille flow and Poiseuille flow with couple stress are special cases of the present problem. Velocity profiles for various values of couple stress parameters α ¯ and η ¯ have been obtained. It is found that, for small values of α ¯ , these velocity profiles are blunted and are qualitatively in good agreement with experimental results for blood flow.…It is also observed that a decrease in tube diameter leads to an increase in the bluntness of the velocity profiles.
vol. 13, no. 4, pp. 243-250, 1976
Abstract: The pressure-flow relationship of erythrocyte suspension in the bullfrog’s hind limb was studied by the perfusion method in which the rate of flow: pressure characteristic consists of a smooth curve convex to the pressure axis, tending to a straight line at a high rate of flow. This asymptotic line was found to have a negative intercept on the flow axis, which is independent of the haematocrit of the sample, and depended only on the radius of the vascular tube. In the light of the marginal zone theory, our finding appears appropriate.
vol. 13, no. 4, pp. 251-256, 1976