The Physiological Principle of Minimum Work: I. The Vascular System and the Cost of Blood Volume.
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This article is published in Proceedings of the National Academy of Sciences of the United States of America.The article was published on 1926-03-01 and is currently open access. It has received 1820 citations till now. The article focuses on the topics: Blood volume.read more
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Quantitative assessments of morphological and functional properties of biological trees based on their fractal nature
Akira Kamiya,Tatsuhisa Takahashi +1 more
TL;DR: Fractal-based integrals were formulated to calculate such morphological parameters of vascular and bronchial trees as fluid conduit systems, including the individual branch flow rate, mean flow velocity, wall shear rate and stress, internal pressure, and circumferential tension.
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Changes in wood density, wood anatomy and hydraulic properties of the xylem along the root-to-shoot flow path in tropical rainforest trees.
TL;DR: Five co-occurring tree species of a perhumid tropical rainforest in Sulawesi show convergent patterns in their hydraulic architecture despite different growth strategies, and the paradigm assuming continuous acropetal vessel tapering and decrease in specific conductance from fine roots towards distal twigs needs reconsideration.
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A pulse wave propagation model to support decision-making in vascular access planning in the clinic
Wouter Huberts,Wouter Huberts,A.S. Bode,Wilco Kroon,RN Planken,Jhm Jan Tordoir,van de Fn Frans Vosse,van de Fn Frans Vosse,Emh Mariëlle Bosboom,Emh Mariëlle Bosboom +9 more
TL;DR: The lumped parameter pulse wave propagation model was able to select the same AVF configuration as an experienced surgeon in nine out of ten patients and in six out of 10 patients predicted postoperative flows were in the same order of magnitude as measured postoperative flow.
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Analysis of permeability for the fractal-like tree network by parallel and series models
TL;DR: A comparison of the fractal-like tree network with the traditional parallel net indicates that the fractals can provide much higher permeability than that of thetraditional parallel net.
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A common developmental program can produce diverse leaf shapes.
TL;DR: A computational model of leaf development is proposed that generalizes the largely conserved molecular program for the reference plants Arabidopsis thaliana, Cardamine hirsuta and Solanum lycopersicum and shows that small variations of this model can produce diverse leaf shapes, from simple to lobed to compound.