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https://www.readbyqxmd.com/read/28822517/the-effect-of-traditional-persian-music-on-the-cardiac-functioning-of-young-iranian-women
#1
Behzad Abedi, Ataollah Abbasi, Atefeh Goshvarpour, Hamid Tayebi Khosroshai, Elnaz Javanshir
In the past few decades, several studies have reported the physiological effects of listening to music. The physiological effects of different music types on different people are not similar. Therefore, in the present study, we have sought to examine the effects of traditional Persian music on the cardiac function in young women. Twenty-two healthy females participated in this study. ECG signals were recorded in two conditions: rest and music. For each of the 21 ECG signals (15 morphological and six wavelet based feature) features were extracted...
July 2017: Indian Heart Journal
https://www.readbyqxmd.com/read/28811830/changes-of-blood-flux-at-bl21-and-points-along-bl-meridian-resulted-from-acupuncture-or-moxibustion-case-cross-design-study
#2
Guangjun Wang, Shuyong Jia, Hongyan Li, Ze Wang, Yuying Tian, Weibo Zhang
Acupuncture (Acup) and moxibustion (Moxi) are commonly used interventions in clinical practice. However, the difference between Acup and moxibustion mechanisms is unclear. In current study, blood perfusion responses resulted from Acup or Moxi at Weishu acupoint (BL21) and control points were explored, respectively. The time series of blood flux signals at BL21 and control points were transformed with Morlet wavelet, and the differences in each frequency interval were observed. The results suggested that acupoint response to different stimulation is a comprehensive process which related to all components of blood perfusion signals...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28811662/fractal-properties-of-shoreline-changes-on-a-storm-exposed-island
#3
Xiaojing Zhong, Peng Yu, Shenliang Chen
Extreme storm events and their consequent shoreline changes are of great importance for understanding coastal evolution and assessing storm hazards. This work investigates the fractal properties of the spatial distributions of shoreline changes caused by storms. Wavelet analysis and upper-truncated power law (UTPL) fitting are used to study the power spectra of shoreline changes and to evaluate the upper limits of the cross-shore erosion and accretion. During a period affected by storms, the alongshore shoreline change patterns are strong on the 15 km scale but are weak with lower spectral power on the 20 km scale...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28809719/hybrid-fuzzy-wavelet-neural-networks-architecture-based-on-polynomial-neural-networks-and-fuzzy-set-relation-inference-based-wavelet-neurons
#4
Wei Huang, Sung-Kwun Oh, Witold Pedrycz
This paper presents a hybrid fuzzy wavelet neural network (HFWNN) realized with the aid of polynomial neural networks (PNNs) and fuzzy inference-based wavelet neurons (FIWNs). Two types of FIWNs including fuzzy set inference-based wavelet neurons (FSIWNs) and fuzzy relation inference-based wavelet neurons (FRIWNs) are proposed. In particular, a FIWN without any fuzzy set component (viz., a premise part of fuzzy rule) becomes a wavelet neuron (WN). To alleviate the limitations of the conventional wavelet neural networks or fuzzy wavelet neural networks whose parameters are determined based on a purely random basis, the parameters of wavelet functions standing in FIWNs or WNs are initialized by using the C-Means clustering method...
August 11, 2017: IEEE Transactions on Neural Networks and Learning Systems
https://www.readbyqxmd.com/read/28807534/computed-tomography-radiomics-predicts-hpv-status-and-local-tumor-control-after-definitive-radiochemotherapy-in-head-and-neck-squamous-cell-carcinoma
#5
Marta Bogowicz, Oliver Riesterer, Kristian Ikenberg, Sonja Stieb, Holger Moch, Gabriela Studer, Matthias Guckenberger, Stephanie Tanadini-Lang
PURPOSE: This study aimed to predict local tumor control (LC) after radiochemotherapy of head and neck squamous cell carcinoma (HNSCC) and human papillomavirus (HPV) status using computed tomography (CT) radiomics. METHODS AND MATERIALS: HNSCC patients treated with definitive radiochemotherapy were included in the retrospective study approved by the local ethical commission (93 and 56 patients in the training and validation cohorts, respectively). Three hundred seventeen CT radiomic features, including those based on shape, intensity, texture, and wavelet transform, were calculated in the primary tumor region...
June 15, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28800322/relationship-between-skin-blood-flow-regulation-mechanisms-and-vascular-endothelial-growth-factor-in-patients-with-metabolic-syndrome
#6
E Smirnova, S Shulkina, E Loran, S Podtaev, N Antonova
The focus of this paper is the determination of endothelial dysfunction in patients with metabolic syndrome (MetS) and the establishment of a relationship between the traditional biomarkers of endothelial dysfunction and the vascular tone regulation indices obtained from indirect cold tests in MetS patients. Our investigation was conducted on 30 patients aged 45.5±9 years. The control group comprised 14 healthy subjects aged 48.2±2.4 years. The mechanism of vascular tone regulation was investigated using the wavelet analysis of skin temperature oscillations (WAST)...
August 11, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28781931/influence-of-gender-on-muscle-fatigue-during-dynamic-knee-contractions
#7
Chiharu Fujisawa, Akira Tamaki, Eiji Yamada, Hirofumi Matsuoka
PURPOSE: The purpose was to compare quadriceps muscle fatigue and change in surface electromyogram (sEMG) spectral power, muscle thickness, and peak torque (normalized by body weight) in men and women during isokinetic knee contractions. METHODS: Nineteen healthy volunteers (10 men, 9 women) participated. The volunteers performed 32 consecutive maximal isokinetic knee contractions for peak torque and muscle fatigue index (FI). The sEMG data were analyzed using wavelet analysis for median frequency (MF)...
2017: Physical Therapy Research
https://www.readbyqxmd.com/read/28778057/unsupervised-detection-and-removal-of-muscle-artifacts-from-scalp-eeg-recordings-using-canonical-correlation-analysis-wavelets-and-random-forests
#8
Maria N Anastasiadou, Manolis Christodoulakis, Eleftherios S Papathanasiou, Savvas S Papacostas, Georgios D Mitsis
OBJECTIVE: This paper proposes supervised and unsupervised algorithms for automatic muscle artifact detection and removal from long-term EEG recordings, which combine canonical correlation analysis (CCA) and wavelets with random forests (RF). METHODS: The proposed algorithms first perform CCA and continuous wavelet transform of the canonical components to generate a number of features which include component autocorrelation values and wavelet coefficient magnitude values...
September 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28761440/fuzzy-classification-of-high-resolution-remote-sensing-scenes-using-visual-attention-features
#9
Linyi Li, Tingbao Xu, Yun Chen
In recent years the spatial resolutions of remote sensing images have been improved greatly. However, a higher spatial resolution image does not always lead to a better result of automatic scene classification. Visual attention is an important characteristic of the human visual system, which can effectively help to classify remote sensing scenes. In this study, a novel visual attention feature extraction algorithm was proposed, which extracted visual attention features through a multiscale process. And a fuzzy classification method using visual attention features (FC-VAF) was developed to perform high resolution remote sensing scene classification...
2017: Computational Intelligence and Neuroscience
https://www.readbyqxmd.com/read/28758641/dropconnected-neural-networks-trained-on-time-frequency-and-inter-beat-features-for-classifying-heart-sounds
#10
Edmund Kay, Anurag Agarwal
OBJECTIVE: Automatic heart sound analysis has the potential to improve the diagnosis of valvular heart diseases in the primary care phase, as well as in countries where there is neither the expertise nor the equipment to perform echocardiograms. An algorithm has been trained, on the PhysioNet open-access heart sounds database, to classify heart sounds as normal or abnormal. APPROACH: The heart sounds are segmented using an open-source algorithm based on a hidden semi-Markov model...
July 31, 2017: Physiological Measurement
https://www.readbyqxmd.com/read/28757110/quantitative-eeg-findings-and-response-to-treatment-with-antiepileptic-medications-in-children-with-epilepsy
#11
Chen-Sen Ouyang, Ching-Tai Chiang, Rei-Cheng Yang, Rong-Ching Wu, Hui-Chuan Wu, Lung-Chang Lin
BACKGROUND: Epilepsy is a common chronic disorder in pediatric neurology. Nowadays, a variety of antiepileptic drugs (AEDs) are available. A scientific method designed to evaluate the effectiveness of AEDs in the early stage of treatment has not been reported. PURPOSE: In this study, we try to use quantitative EEG (QEEG) analysis as a biomarker to evaluate therapeutic effectiveness. METHODS: 20 epileptic children were enrolled in this study...
July 27, 2017: Brain & Development
https://www.readbyqxmd.com/read/28755816/analysis-of-the-tennis-racket-vibrations-during-forehand-drives-selection-of-the-mother-wavelet
#12
Y Blache, C Hautier, F Lefebvre, A Djordjevic, T Creveaux, I Rogowski
The time-frequency analysis of the tennis racket and hand vibrations is of great interest for discomfort and pathology prevention. This study aimed to (i) to assess the stationarity of the vibratory signal of the racket and hand and (ii) to identify the best mother wavelet to perform future time-frequency analysis, (iii) to determine if the stroke spin, racket characteristics and impact zone can influence the selection of the best mother wavelet. A total of 2364 topspin and flat forehand drives were performed by fourteen male competitive tennis players with six different rackets...
July 20, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28755054/mri-features-can-predict-egfr-expression-in-lower-grade-gliomas-a-voxel-based-radiomic-analysis
#13
Yiming Li, Xing Liu, Kaibin Xu, Zenghui Qian, Kai Wang, Xing Fan, Shaowu Li, Yinyan Wang, Tao Jiang
OBJECTIVE: To identify the magnetic resonance imaging (MRI) features associated with epidermal growth factor (EGFR) expression level in lower grade gliomas using radiomic analysis. METHODS: 270 lower grade glioma patients with known EGFR expression status were randomly assigned into training (n=200) and validation (n=70) sets, and were subjected to feature extraction. Using a logistic regression model, a signature of MRI features was identified to be predictive of the EGFR expression level in lower grade gliomas in the training set, and the accuracy of prediction was assessed in the validation set...
July 28, 2017: European Radiology
https://www.readbyqxmd.com/read/28747153/temporal-and-spatial-analysis-of-psittacosis-in-association-with-poultry-farming-in-the-netherlands-2000-2015
#14
Lenny Hogerwerf, Manon M C Holstege, Elisa Benincà, Frederika Dijkstra, Wim van der Hoek
BACKGROUND: Human psittacosis is a highly under diagnosed zoonotic disease, commonly linked to psittacine birds. Psittacosis in birds, also known as avian chlamydiosis, is endemic in poultry, but the risk for people living close to poultry farms is unknown. Therefore, our study aimed to explore the temporal and spatial patterns of human psittacosis infections and identify possible associations with poultry farming in the Netherlands. METHODS: We analysed data on 700 human cases of psittacosis notified between 01-01-2000 and 01-09-2015...
July 26, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28745515/hydrology-of-the-north-klondike-river-carbon-export-water-balance-and-inter-annual-climate-influences-within-a-sub-alpine-permafrost-catchment
#15
Anthony Lapp, Ian Clark, Andrew Macumber, Tim Patterson
Arctic and sub-arctic watersheds are undergoing significant changes due to recent climate warming and degrading permafrost, engendering enhanced monitoring of arctic rivers. Smaller catchments provide understanding of discharge, solute flux and groundwater recharge at the process level that contributes to an understanding of how larger arctic watersheds are responding to climate change. The North Klondike River, located in west central Yukon, is a sub-alpine permafrost catchment, which maintains an active hydrological monitoring station with a record of >40 years...
July 26, 2017: Isotopes in Environmental and Health Studies
https://www.readbyqxmd.com/read/28743071/prediction-of-protein-structural-class-for-low-similarity-sequences-using-chou-s-pseudo-amino-acid-composition-and-wavelet-denoising
#16
Bin Yu, Lifeng Lou, Shan Li, Yusen Zhang, Wenying Qiu, Xue Wu, Minghui Wang, Baoguang Tian
Prediction of protein structural class plays an important role in protein structure and function analysis, drug design and many other biological applications. Prediction of protein structural class for low-similarity sequences is still a challenging task. Based on the theory of wavelet denoising, this paper presents a novel method of prediction of protein structural class for the first time. Firstly, the features of the protein sequence are extracted by using Chou's pseudo amino acid composition (PseAAC). Then the extracted feature information is denoised by two-dimensional (2D) wavelet...
July 14, 2017: Journal of Molecular Graphics & Modelling
https://www.readbyqxmd.com/read/28742798/cerebrovascular-pressure-reactivity-monitoring-using-wavelet-analysis-in-traumatic-brain-injury-patients-a-retrospective-study
#17
Xiuyun Liu, Joseph Donnelly, Marek Czosnyka, Marcel J H Aries, Ken Brady, Danilo Cardim, Chiara Robba, Manuel Cabeleira, Dong-Joo Kim, Christina Haubrich, Peter J Hutchinson, Peter Smielewski
BACKGROUND: After traumatic brain injury (TBI), the ability of cerebral vessels to appropriately react to changes in arterial blood pressure (pressure reactivity) is impaired, leaving patients vulnerable to cerebral hypo- or hyperperfusion. Although, the traditional pressure reactivity index (PRx) has demonstrated that impaired pressure reactivity is associated with poor patient outcome, PRx is sometimes erratic and may not be reliable in various clinical circumstances. Here, we introduce a more robust transform-based wavelet pressure reactivity index (wPRx) and compare its performance with the widely used traditional PRx across 3 areas: its stability and reliability in time, its ability to give an optimal cerebral perfusion pressure (CPPopt) recommendation, and its relationship with patient outcome...
July 2017: PLoS Medicine
https://www.readbyqxmd.com/read/28741115/the-dtl-erg-electrode-comes-in-different-shapes-and-sizes-are-they-all-good
#18
Jungeun Woo, Suna Jung, Mathieu Gauvin, Pierre Lachapelle
PURPOSE: Although the DTL fiber electrode has been in use in the ERG field for more than four decades, its composition was never clearly defined. We compared five different types of conductive (DTL type) yarn (differing in terms of mass, number of filaments, and crimping degree) in order to determine whether we could identify one that would be better suited for the recording of ERGs. METHODS: Photopic flash ERGs were recorded from five subjects using the following DTL electrodes: 27/7, 22/1, 11/1, 11/1*2, and 22/1*2...
July 24, 2017: Documenta Ophthalmologica. Advances in Ophthalmology
https://www.readbyqxmd.com/read/28737272/dynamic-coupling-between-fmri-local-connectivity-and-interictal-eeg-in-focal-epilepsy-a-wavelet-analysis-approach
#19
Amir Omidvarnia, Mangor Pedersen, David N Vaughan, Jennifer M Walz, David F Abbott, Andrew Zalesky, Graeme D Jackson
Simultaneous scalp EEG-fMRI recording is a noninvasive neuroimaging technique for combining electrophysiological and hemodynamic aspects of brain function. Despite the time-varying nature of both measurements, their relationship is usually considered as time-invariant. The aim of this study was to detect direct associations between scalp-recorded EEG and regional changes of hemodynamic brain connectivity in focal epilepsy through a time-frequency paradigm. To do so, we developed a voxel-wise framework that analyses wavelet coherence between dynamic regional phase synchrony (DRePS, calculated from fMRI) and band amplitude fluctuation (BAF) of a target EEG electrode with dominant interictal epileptiform discharges (IEDs)...
July 24, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28737267/appearance-and-characterization-of-fruit-image-textures-for-quality-sorting-using-wavelet-transform-and-genetic-algorithms
#20
Suchitra Khoje
Images of four qualities of mangoes and guavas are evaluated for color and textural features to characterize and classify them, and to model the fruit appearance grading. The paper discusses three approaches to identify most discriminating texture features of both the fruits. In the first approach, fruit's color and texture features are selected using Mahalanobis distance. A total of 20 color features and 40 textural features are extracted for analysis. Using Mahalanobis distance and feature intercorrelation analyses, one best color feature (mean of a* [L*a*b* color space]) and two textural features (energy a*, contrast of H*) are selected as features for Guava while two best color features (R std, H std) and one textural features (energy b*) are selected as features for mangoes with the highest discriminate power...
July 24, 2017: Journal of Texture Studies
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