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Screening post-menopausal women for bone mineral level by bioelectrical impedance spectroscopy of dominant arm

/m 2 ) Normal 21 30.76 ± 5.51 [19.82, 43.57] NS NS Osteopenia 22 29.97 ± 6.02 [16.41, 43.42] - NS Osteoporosis 5 25.25 ± 1.33 [24.03, 27.33] - - Dominant arm Characteristic Frequency (kHz) Normal 21 51.72 ± 8.57 [39.92, 69.57] NS P < 0.005 Osteopenia 22 55.91 ± 10.01 [39.96, 75,68] - NS Osteoporosis 5 65.42 ± 12.96 [57.98, 88.30] - - Total Lumbar Spine BMD (g∙cm -2 ) Normal 21 1.048 ± 0.08 [0.934, 1.259] P < 0.001 P < 0.001 Osteopenia 22 0.855 ± 0.05 [0.784, 0

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Estimation of body composition and water data depends on the bioelectrical impedance device

±8.3 (-36±17) -18 to -12 (-43 to -30) -31 1.3 FM (kg) 31±12 19±12 0.14* 0.44** 11±7.7 (95±257) 7.7 to 13 (1.0 to 191) -4.5 26 HD subgroup (n=93) Bland-Altman 95% limits of agreement Data BIS SFBIA ICC r Bias a (%) b 95%CI Bias c (%) d Lower Upper analysed R (ohm) 730±128 606±103 -0.03 -0.05 124±168 (18±25) 90 to 159 (13 to 23) -206 454 Xc (ohm) 78±22 68±17 0.18* 0.16 10±25 (13±38) 5.2 to 16 (5.3 to 21) -40 60

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Cutoff points of BMI for classification of nutritional status using bioelectrical impedance analysis

between the cutoff points of the BMI (kg/m 2 ) and body fat ranges (%) according to Gallagher et al (2000). Fat mass (%) BMI (kg/ 2 ) Total < 18.5 18.5 – 24.9 25 – 29.9 ≥ 30.0 Men (%) < 8 3.1 (12) 4.6 (18) 0.5 (2) 0 (0) 8.3 (32) 8–20 3.9 (15) 29.3 (113) 11.6 (45) 1.8 (7) 46.6 (180) 20 – 25 0.5 (2) 6.7 (26) 10.1 (39) 2.8 (11) 20.2 (78) > 25 0.3 (1) 4.4 (17) 10.4 (40) 9.8 (38) 24.8 (96) Total 7.8 (30) 45.0 (174) 32.6 (126) 14.5 (56

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Dopamine detection using mercaptopropionic acid and cysteamine for electrodes surface modification

-hood with 25 wt % of KOH at 80 °C for 6-8 hours. Figure 5 shows the Nickle shim fabrication steps. Fig. 5 Process flow of Nickle shim fabrication Device fabrication by injection molding Nickle shim was then used to fabricate required microfluidic devices of COC substrate using injection molding techniques as described further. Once the Nickle shim was created and separated from the silicon wafer, it was cut with 1064 nm laser micro machining tool using 255 mm optics with a laser power of 1.9 W at 10%. After cutting, the Nickle shim was

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Three-dimensional pulmonary monitoring using focused electrical impedance measurements

.jphysparis.2009.07.003 20 Adler A, Lionheart WRB. Uses and abuses of EIDORS: an extensible software base for EIT. Physiological Measurement. 2006 apr;27(5):S25–S42. http://dx.doi.org/10.1088/0967-3334/27/5/s03 . 10.1088/0967-3334/27/5/S03 16636416 Adler A Lionheart WRB Uses and abuses of EIDORS: an extensible software base for EIT Physiological Measurement 2006 apr 27 5 S25 S42 http://dx.doi.org/10.1088/0967-3334/27/5/s03 21 Schöberl J. NETGEN An advancing front 2D/3D-mesh generator based on abstract rules. Computing and Visualization in Science. 1997 jul

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Electrodermal activity responses for quantitative assessment of felt pain

hydration of the skin. In addition, they are better suited than wet gel electrodes for EDA measurements [ 22 , 23 ], and hence are crucial to obtain accurate results of EDA measurements. Electrodes were placed on the preferred arm of the participants. The M electrode was placed on the hypothenar site of the palm, the R electrode was placed on the apex of the elbow, which is an electrodermally inactive area as recommended [ 24 ], and finally the C electrode was placed on the underarm between M and R. Although abrasion [ 25 ] and skin drilling [ 26 ] were recommended as a

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Extracting parasite effects of electrical bioimpedance measurements

.58 0.45 0.40 2.87 2.66 f R [Hz] NA 9.60 25.00 22.80 0.34 1.03 2.50 2.02 RMSRE 0.80 0.15 0.15 0.18 The objective of using electrical circuits were to reproduce the increase of impedance magnitude at increasing frequency, and then to extract R1 , L, C2, which were calculated from the fitted data. Standard deviations values are calculated in comparison to the measured ones. Furthermore, the Cole parameters (R 0 , R ∞ , F c and α) are calculated, either for the measured or calculated ones (R 1 , R 2 , R 3 , C 1 , C 2 and

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Applications of bioimpedance measurement techniques in tissue engineering

-invasive Characterization of the Osteogenic Differentiation of hMSCs in 3D by Impedance Spectroscopy Dossel O Schlegel WC World Congress on Medical Physics and Biomedical Engineering, Vol 25, Pt 10: Biomaterials, Cellular and Tissue Engineering, Artificial Organs. IFMBE Proceedings. 25 New York Springer; 2009 81 84 https://doi.org/10.1007/978-3-642-03900-3_24 115 Yuste Y, Serrano, J., Olmo, A., Maldonado-Jacobi, A., Pérez, P., Huertas, G., Pereira, S., Portilla, F. and Yúfera, A., editor Monitoring Muscle Stem Cell Cultures with Impedance Spectroscopy. In

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Systematic variability in ICG recordings results in ICG complex subtypes – steps towards the enhancement of ICG characterization

a direct characterization of systolic and diastolic time intervals. Therefore, the detection of the characteristic points of the ICG complex of dZ/dt is crucial to calculate several hemodynamic parameters, e.g., left ventricular ejection time (LVET), isovolumic relaxation time (IVRT), stroke volume (SV) and cardiac output (CO ) [ 7 ]. LVET is the time between B and X points in the dZ/dt waveform, which is a crucial element when calculating stroke volume and cardiac output [ 8 ]. IVRT is the time between X and O points, which measures the diastolic function and

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Mechanistic multilayer model for non-invasive bioimpedance of intact skin

thicknesses and electrical properties, as illustrated in Fig. 1 : ( i ) a stratified, cellular epidermis; ( ii ) an underlying dermis made up of connective tissue that is separated from the epidermis through the dermo-epidermal junction; and ( iii ) the hypodermis, also known as the fatty subcutaneous layer or adipose tissue. Each of these three layers, in turn, consist of one or more sublayers; e.g., epidermis of thin skin comprises stratum corneum, stratum granulosum, stratum spinosum and stratum basale. Besides natural variations between individuals that result in

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