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Mathematical models of cardiovascular control by the autonomic nervous system [article]

Michel Kana
2019 arXiv   pre-print
After statistical evaluation in the time and frequency domains, the data were especially used to resolving a constrained optimization task.  ...  Results show higher vagal tone on young subjects with a decreasing trend with aging, what agrees with the data from heart rate variability studies.  ...  that heart rate and blood pressure are physiologically coupled in a closed-loop control system while the sequence variant of baroreflex sensitivity does not consider the influence of respiration on heart  ... 
arXiv:1901.05071v2 fatcat:xwjz7vvah5bx7nzlu26p6ho47y

49th Annual Meeting of the Association for European Paediatric and Congenital Cardiology, AEPC with joint sessions with the Japanese Society of Pediatric Cardiology and Cardiac Surgery, Asia-Pacific Pediatric Cardiology Society, European Association for Cardio-Thoracic Surgery and Canadian Pediatric Cardiology Association, Prague, Czech Republic, 20–23 May 2015

2015 Cardiology in the Young  
YIA-2 Does reversal of flow in the fetal aortic arch in second trimester aortic stenosis predict hypoplastic left heart syndrome?  ...  The Principle Component Analysis (PCA) was performed, but the gene expression levels showed no significant differences between the groups.  ...  In the attention test the group after HTx scored also poorer than the healthy comparison group (p < .01). Parental estimation revealed also a higher rate of behavioural problems (p < .01).  ... 
doi:10.1017/s1047951115000529 fatcat:5lmcvpcmcjenbbw372jaocciue

A review of signals used in sleep analysis

A Roebuck, V Monasterio, E Gederi, M Osipov, J Behar, A Malhotra, T Penzel, G D Clifford
2013 Physiological Measurement  
Both univariate and data fusion (exploiting the diverse characteristics of the primary recorded signals) approaches are discussed, together with a comparison of automated methods for analysing sleep.  ...  We examine both clinical needs and biomedical signal processing approaches across a range of sensor types.  ...  Centre for Doctoral Training in Healthcare Innovation).  ... 
doi:10.1088/0967-3334/35/1/r1 pmid:24346125 pmcid:PMC4024062 fatcat:xfav5qvutndgzmoazmzw65rfuy

28th Annual Computational Neuroscience Meeting: CNS*2019

2019 BMC Neuroscience  
We have recently revealed the presence of dynamical invariants in the pyloric CPG in the form of cycle-by-cycle linear relations among specific time intervals and the instantaneous period [4].  ...  Some efforts use neurons with intrinsic rich dynamics as observed in several experimental works of CPGs [2, 3].  ...  extended DCM for phase coupling with the additional modelling component correctly estimates the coupling functions that do not depend on the distribution of the observables.  ... 
doi:10.1186/s12868-019-0538-0 fatcat:3pt5qvsh45awzbpwhqwbzrg4su

46th Annual Meeting of the Association for European Paediatric and Congenital Cardiology, AEPC with joint sessions with the Japanese Society of Pediatric Cardiology and Cardiac Surgery Istanbul, Turkey, May 23–26, 2012

2012 Cardiology in the Young  
In this study, short term analysis of heart rate variability was investigated in 66 obese children and 40 healthy controls.  ...  The purpose of this study was to ascertain which formula best corrected for heart rate in children of all ages Methods: we enrolled a cohort of 600 healthy children.  ...  Therefore, patients who have a conduit need to undergo open heart surgery in several times in their lifespan.  ... 
doi:10.1017/s1047951112000509 fatcat:wzo3hegsxrbwtdv5ilo3xr2mzy

Poster Session III

2010 Neuropsychopharmacology  
Discussion: Our hypothesis is that given the opposite signaling between 5-HT6 receptors and dopamine D2 receptors in striatopallidal MSNs, selective over-expression of 5-HT6 receptors in these neurons  ...  The persistence of abnormal behaviors induced by chronic LSD are not a direct result of LSD because they are present in the absence of drug.  ...  GM1 ganglosides are components of lipid rafts that can be visualized through labeling with GFP-tagged cholera toxin (CTX) subunit B.  ... 
doi:10.1038/npp.2010.218 fatcat:i5knteqsgveybffza7g6b4iqei

30th Annual Computational Neuroscience Meeting: CNS*2021–Meeting Abstracts

2021 Journal of Computational Neuroscience  
One of the goals of neuroscience is to understand the computational principles that describe the formation of behaviorally relevant signals in the brain, as well as how these computations are realized  ...  Currently, most functional models of neural activity are based on firing rates, while the most relevant signals for inter-neuron communication are spikes.  ...  Compute time: grant JINB33  ... 
doi:10.1007/s10827-021-00801-9 pmid:34931275 pmcid:PMC8687879 fatcat:evpmmfpaivgpxdqpive5xdgmwu

Proceedings Of The 15Th International Conference On Biomedical Applications Of Electrical Impedance Tomography [article]

Andy Adler, Bartłomiej Grychtol
2015 Zenodo  
This document is the collection of papers accepted for presentation at the 15th International Conference on Biomedical Applications of Electrical Impedance Tomography.  ...  Each individual paper in this collection: (c) 2014 by the indicated authors. Collected work: (c) 2014 Andy Adler and Bartłomiej Grychtol. All rights reserved.  ...  Since atelectasis should be negligible in the healthy volunteers, the change of ratios may be explained by the activity of respiratory muscles, influencing the amount of lung tissue captured in certain  ... 
doi:10.5281/zenodo.17749 fatcat:ehd3tnanebhqdoozy6wu27hojm

Aberrant CYP2D6 metabolizer phenotypes do not show increased frequency in patients undergoing ECT after antidepressant therapy

Hooman Mirzakhani, Juliët van Dormolen, Karen van der Weide, Henk-Jan Guchelaar, Martijn S. van Noorden, Jesse Swen
2015 Pharmacogenetics & Genomics  
Conclusion The confirmation of previously reported associations between polymorphismsin CYP3A5 and ABCB1 with sunitinib toxicity and efficacy respectively indicates that genotyping of these genetic variants  ...  CYP2D6 variants are associated with metabolic profile of ADs and have been investigated as a determinant contributor in treatment resistant depression (TRD).  ...  BIS, heart rate, oxygen saturation were registered in both experiments.  ... 
doi:10.1097/fpc.0000000000000167 pmid:26230381 fatcat:lniiqjkx7jhkzkuylv7ca6qfna

Poster Session II

2012 Neuropsychopharmacology  
Non-parametric tests were used to compare patients with and without abdominal obesity and the other components of the metabolic syndrome on age, psychotropic medications, median dinner time and its standard  ...  Groups did not differ in reaction time or face ratings.  ...  Heterogeneity caused a marked reduction of the estimated effect size reflected in decrease of estimated odds ratios.  ... 
doi:10.1038/npp.2012.220 fatcat:coblfrtlujc6hdycjbnrdwzslm

Grafting acoustic instruments and signal processing: Creative control and augmented expressivity

Dan Overholt
2013 Journal of the Acoustical Society of America  
To achieve this, measurements of reverberation time and support factor of each space are coupled with participant surveys in 10 different Sacred Harp singing locations.  ...  In the spirit of the text Concert Halls and Opera Houses by L.  ...  Among the many signals whose frequency content has been shown to vary in time are speech and other animal sounds, biomedical signals (e.g., heart sounds, heart rate, the electroencephalogram (EEG), the  ... 
doi:10.1121/1.4830794 fatcat:2sexsmbypjcozjctnorzoiy7te

Epidemiology/Genetics

2014 Diabetes  
A 75 g OGTT underwent at 6-8 weeks after delivery in 179 GDM patients.  ...  The rates of DM, IGT, IFG and IGR were 20.1% (36/179), 17.3% (31/179), 3.3% (6/179) and 5% (9/179) respectively. (2) Compared to the women who reverted to normal, women with AGM showed shorter pregnant  ...  Such changes of microvasculature might be chronically imposed by diabetes, however, whether the changes can occur in a transient phase of hyperglycemia such as gestational diabetes mellitus (GDM) is still  ... 
doi:10.2337/db14-1317-1629 fatcat:osja3wyrmzgsdmn5tfu5t6c42q

45th Annual SER Meeting Minneapolis, Minnesota June 27-30, 2012

2012 American Journal of Epidemiology  
Prediction models estimated that the odds of total mortality minimized in the 25 (OH)D range of 35-40 ng/mL.  ...  These findings provide no strong evidence for an association between NSAIDs use and prostate cancer risk. However, timing of exposure might be relevant.  ...  However, current methods cannot estimate interactions, quadratic or higher order effects of exposures measured in pools.  ... 
doi:10.1093/aje/kws258 pmid:22684495 fatcat:oqvpk3zbtfbenmssr5uy2bwymm

A design methodology for 2D sparse NDE arrays using an efficient implementation of refracted-ray TFM

Jerzy Dziewierz, Timothy Lardner, Anthony Gachagan
2013 2013 IEEE International Ultrasonics Symposium (IUS)  
Recent advances in the field of tissue engineering include the engineering of skin, cartilage, and bladder, all of which are relatively thin tissues that can rely on diffusion for the delivery of oxygen  ...  These changes in collagen microstructure were produced using both ultrasound standing wave fields and traveling wave fields.  ...  Each lab had at least three participants scan each phantom at least three times to estimate the bias and components of variance in SWS estimates among systems.  ... 
doi:10.1109/ultsym.2013.0035 fatcat:th5znfh7y5bklfdbmhb4u6iq2i

On the relations among temporal integration for loudness, loudness discrimination, and the form of the loudness function

So/ren Buus, Mary Florentine, Torben Poulsen
1996 Journal of the Acoustical Society of America  
Thresholds are estimated for increments in the intensity of the central tone of a band of equal intensity, random phase tones evenly separated in frequency (parametrically varied between 10 and 160 Hz)  ...  The new coupled equations have the advantage of writing the poroclasticity equations in the form of the coupling between an equivalent elastodynamic equation for the solid phase and an equivalent Helmholtz  ...  The modulators for the two carders were either in phase (coheren0 or in anti-phase (incoheren0. The modulation rate was either 2.5, 5, or l0 Hz. One or more cycles of modulation were used.  ... 
doi:10.1121/1.415616 fatcat:o3peikxywvgrtccqqlvwx55j3y
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