Search Results

1 - 8 of 8 items :

Clear All
Bioelectrical impedance analysis of body composition: influence of a newly implanted cardiac device

/ankle arrangement). Bioimpedance was measured as usual in the right side, and also from the left due to the fact that all cardiac devices were implanted at the left subclavicular region. Measured parameters included resistance (R), reactance (X), phase angle (α), body capacitance (C) fat-free mass (FFM), body cellular mass (BCM), extracellular mass (ECM), fat mass (FM), ECM/BCM, body mass index (BMI), total body water (TBW), intracellular water (ICW), extracellular water (ECW), TBW/FFM, TBW/body weight and a print-out was obtained from each measurement. Implanted devices and

Open access
Indoor air pollution and the contribution of biosensors

Applied Phycology 2003 15 5 415 424 114 Podola B, Nowack ECM,Melkonian M, The use of multiple-strain algal sensor chips for the detection and identification of volatile organic compounds. Biosensors and Bioelectronics, 2004; 19(10): p. 1253-1260. 10.1016/j.bios.2003.11.015 Podola B Nowack ECM Melkonian M The use of multiple-strain algal sensor chips for the detection and identification of volatile organic compounds Biosensors and Bioelectronics 2004 19 10 1253 1260 115 Jiang Y, Liang P, Huang X,Ren ZJ, A novel microbial fuel cell

Open access
Physiological role of Prion Protein in Copper homeostasis and angiogenic mechanisms of endothelial cells

this protein in the angiogenic regulation of copper homeostasis, pointing out its significance in cell-to-cell and cell-to-ECM (extracellular matrix) interactions. The tubulogenesis assay of HUVEC PrP-knockdown cells in presence of VEGF165 and matrigel, showed a reduction of their sprouting capacity ( Fig. 8 ). Therefore, we can assume a role of PrP in the maintenance of the physiological cell migration and adhesion properties. These processes are strongly related to the integrin family members expression ( 79 ) as for example integrin 1 which modulation is strictly

Open access
A LabVIEW-based electrical bioimpedance spectroscopic data interpreter (LEBISDI) for biological tissue impedance analysis and equivalent circuit modelling

distinguish real from imaginary parts of bioimpedance and serve as a guide to define equivalent electrical circuit parameters. Because equivalent electrical circuit models or equivalent circuit models (ECM) [ 6 , 13 ] are very useful for understanding the anatomical, physiological and compositional aspects of biological tissues, an accurate analysis of data plots is required for effective assessment of a tissue’s properties. Impedance analyzers are used either to measure the electrical impedance of materials at a single frequency or to study impedance variation over a

Open access
Large deformation finite element analysis of undrained pile installation

of Computational Mechanic , Vol. 1. Fundamentals , John Wiley & Sons, Ltd., 2004, 413–437, DOI: 10.1002/0470091355.ecm009. [8] H amann T., Q iu G., G rabe J., Application of a Coupled Eulerian–Lagrangian approach on pile installation problems under partially drained conditions , Computers and Geotechnics, 2015, 63, 279–290, DOI: 10.1016/j.compgeo.2014.10.006. [9] K omurka V.E., W agner A.B., E dil T.B., A Review of Pile Set-Up , Proc., 51st Annual Geotechnical Engineering Conference, 2003. [10] M absout M.E., T assoulas J.L., A finite

Open access
Numerical Estimation of the Pile Toe and Shaft Unit Resistances During the Installation Process in Sands

References [1] DONEA J., HUERTA A., PONTHOT J.P., RODRÍGUEZ-FERRAN A., Arbitrary Lagrangian-Eulerian methods, Encyclopedia of Computational Mechanics, 2004, DOI: 10.1002/ 0470091355.ecm009. [2] NOH W.F., CEL: a time-dependent, two-space-dimensional, coupled Eulerian-Lagrangian code, [in:] B. Adler, S. Fernbach, M. Rotenberg (eds.), Methods in Computional Physics, Volume 3. Fundamental Methods in Hydrodynamics, AcademicPress, New York, 1964, 117-179. [3] GINGOLD R.A., MONAGHAN J.J., Smoothed particle

Open access
Applications of bioimpedance measurement techniques in tissue engineering

different 3D cell cultures based on the type of Extra Cellular Matrix (ECM), including: Artificial ECM (synthetic polymers, alginate …) Natural ECM (collagen, hyaluronic acid…) None ECM or scaffold-free (3D spheroids or microtissues) ( Figure 6 ) ( 60 , 61 ) Figure 6 Schematic representation of a scaffold free 3D cell culture in the form of spheroids. Encapsulation of the cells in the scaffold in a 3D cell culture system, makes direct evaluation of cellular growth and behavior difficult and time consuming ( 62 ). Techniques such as histopathology

Open access
Transient bioimpedance monitoring of mechanotransduction in artificial tissue during indentation

samples, cellular monolayers or even just single cells [ 20 , 21 ]. However, it has recently been confirmed that the extracellular matrix (ECM) plays a key role in mechanotransduction [ 11 , 22 ]. It has been known for some time that the ECM serves as a tissue scaffold and a substrate for cell anchorage and hence guides cell migration and has other roles in tissue morphogenesis [ 21 , 23 ]. However, the ECM also transmits signals to the cells via electro-chemo-mechanical stresses [ 3 ] and hence influences most of the cells behavior including proliferation

Open access