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Parker Philip D PD Institute for Positive Psychology and Education, Australian Catholic University, New South Wales, - - 2014
The Internal-External frame of reference (IE) model suggests that as self-concept in one domain goes up (e.g., English) self-concept in other domains (e.g., mathematics) should go down (ipsative self-concept hypothesis). To our knowledge this assumption has not been tested. Testing this effect also provides a context for illustrating different approaches ...
Manzanera Marta M Agència Catalana de l'Aigua (ACA), C. Provença 204, Barcelona 08036, Spain; Departament d'Ecologia, Universitat de Barcelona, Barcelona 08028, Spain. Electronic address: - - 2014
We used modelling and field approaches to assess the influence of beach nourishment on a relatively distant Posidonia oceanica seagrass meadow in the NW Mediterranean. Both sediment transport models and in situ observations showed that, two years after the nourishment and under wave climates prevalent during the study period, sediment ...
Gupta R R Department of Applied Physics, University of Calcutta, Calcutta, West Bengal, India, - - 2014
Remote monitoring of biomedical signals provides an opportunity to extend health care service to a distant patient. In this paper, a short range wireless telecardiology system is described with the objective to transmit electrocardiogram signal for remote end acquisition. The acquired signal was compressed using a combination of modified delta ...
Yang Shanshan S School of Information Science and Technology, Xiamen University, Xiamen, Fujian, - - 2014
This article applies advanced signal processing and computational methods to study the subtle fluctuations in knee joint vibroarthrographic (VAG) signals. Two new features are extracted to characterize the fluctuations of VAG signals. The fractal scaling index parameter is computed using the detrended fluctuation analysis algorithm to describe the fluctuations associated ...
Dileep Aroor Dinesh - - 2014
Dynamic kernel (DK)-based support vector machines are used for the classification of varying length patterns. This paper explores the use of intermediate matching kernel (IMK) as a DK for classification of varying length patterns of long duration speech represented as sets of feature vectors. The main issue in construction of ...
Al-Fahoum Amjed A Biomedical Systems and Informatics Engineering Department, Hijjawi Faculty for Engineering Technology , Irbid 21163 , Jordan - - 2014
Abstract This paper highlights a new detection method based on higher spectral analysis techniques to distinguish the Electrocardiogram (ECG) of normal healthy subjects from that with a cardiac ischaemia (CI) patient. Higher spectral analysis techniques provide in-depth information other than available conventional spectral analysis techniques usually used with ECG analysis. ...
Zongo P P CEREGMIA, Université des Antilles et de la Guyane,Cayenne, Guyane - - 2014
SUMMARY Salmonellosis is a foodborne disease of humans and animals caused by infection with Salmonella. The aim of this paper is to improve a deterministic model (DM) and an individual-based model (IBM) with reference to Salmonella propagation in flocks of laying hens taking into account variations in hens housed in ...
Park Juyoung J Department of Computer Science and Engineering, Hanyang University , Ansan, Republic of - - 2014
Abstract Telecardiology provides mobility for patients who require constant electrocardiogram (ECG) monitoring. However, its safety is dependent on the predictability and robustness of data delivery, which must overcome errors in the wireless channel through which the ECG data are transmitted. We report here a framework that can be used to ...
Lian Oh Geok G Acoustic Technology, Department of Electrical Engineering, Technical University of Denmark, Ørsteds Plads 352, 2800 Kongens Lyngby, - - 2014
Techniques have been studied for the localization of an underground source with seismic interrogation signals. Much of the work has involved defining either a P-wave acoustic model or a dispersive surface wave model to the received signal and applying the time-delay processing technique and frequency-wavenumber processing to determine the location ...
Iem Byeong-Gwan BG Gangneung-Wonju National University, Gangneung, Gangwondo, 210-702, South - - 2014
In order to reduce the data amount, the nonuniform sampling (NUS) method detects samples of a signal, such as local maxima and minima. To overcome the sparseness problem of the NUS method, an inflection point detection (IPD) method is proposed to sample a signal nonuniformly. The IPD samples a signal ...
Bouboulis Pantelis - - 2014
The paper presents a new framework for complex support vector regression (SVR) as well as Support Vector Machines (SVM) for quaternary classification. The method exploits the notion of widely linear estimation to model the input-out relation for complex-valued data and considers two cases: 1) the complex data are split into ...
Behar Joachim J Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, - - 2014
Despite significant advances in adult clinical electrocardiography (ECG) signal processing techniques and the power of digital processors, the analysis of non-invasive foetal ECG (NI-FECG) is still in its infancy. The Physionet/Computing in Cardiology Challenge 2013 addresses some of these limitations by making a set of FECG data publicly available to ...
Haghpanahi Masoumeh M Rochester Institute of Technology, Rochester, NY 14623, - - 2014
Noninvasive fetal ECG (fECG) monitoring has potential applications in diagnosing congenital heart diseases in a timely manner and assisting clinicians to make more appropriate decisions during labor. However, despite advances in signal processing and machine learning techniques, the analysis of fECG signals has still remained in its preliminary stages. In ...
Dessì Alessia A DIEE-Department of Electrical and Electronic Engineering, University of Cagliari, 09124 Cagliari, - - 2014
Non-invasive fetal electrocardiography is still an open research issue. The recent publication of an annotated dataset on Physionet providing four-channel non-invasive abdominal ECG traces promoted an international challenge on the topic. Starting from that dataset, an algorithm for the identification of the fetal QRS complexes from a reduced number of ...
Andreotti Fernando F Institute of Biomedical Engineering, Faculty of Electrical and Computer Engineering, TU Dresden, - - 2014
The fetal ECG derived from abdominal leads provides an alternative to standard means of fetal monitoring. Furthermore, it permits long-term and ambulant recordings, which expands the range diagnostic possibilities for evaluating the fetal health state. However, due to the temporal and spectral overlap of maternal and fetal signals, the usage ...
Dirzo Rodolfo R Department of Biology, Stanford University, Stanford, CA 94305, USA. - - 2014
We live amid a global wave of anthropogenically driven biodiversity loss: species and population extirpations and, critically, declines in local species abundance. Particularly, human impacts on animal biodiversity are an under-recognized form of global environmental change. Among terrestrial vertebrates, 322 species have become extinct since 1500, and populations of the ...
Marteau Pierre-Francois - - 2014
This paper proposes some extensions to the work on kernels dedicated to string or time series global alignment based on the aggregation of scores obtained by local alignments. The extensions that we propose allow us to construct, from classical recursive definition of elastic distances, recursive edit distance (or time-warp) kernels ...
Orphanidou Christina - - 2014
The identification of invalid data in recordings obtained using wearable sensors is of particular importance since data obtained from mobile patients is, in general, noisier than data obtained from non-mobile patients. In this paper, we present a Signal Quality Index (SQI) which is intended to assess whether reliable Heart Rates ...
Dai Liang L Department of Physics and Astronomy, Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218, - - 2014
Evidence from the BICEP2 experiment for a significant gravitational-wave background has focused attention on inflaton potentials V(ϕ)∝ϕ^{α} with α=2 ("chaotic" or "m^{2}ϕ^{2}" inflation) or with smaller values of α, as may arise in axion-monodromy models. Here we show that reheating considerations may provide additional constraints to these models. The reheating ...
Sjåstad Knut-Endre KE National Criminal Investigation Service (KRIPOS), P.O. Box 8163, Dep, 0034 Oslo, Norway; University of Oslo, Department of Geosciences, P.O. Box 1047, Blindern, 0316 Oslo, Norway. Electronic address: - - 2014
To establish a link between a bullet fired from a suspected firearm, investigation of striation marks are one of the corner stones in the forensic laboratory. Nevertheless, on some occasions, the bullet may be deformed to such extent that traditional investigation of striation marks will be impossible. Fragments of lead ...
Sumathi S S Mahendra Engineering College, Salem, Tamil Nadu, India, - - 2014
This paper approaches an intellectual diagnosis system using hybrid approach of Adaptive Neuro-Fuzzy Inference System (ANFIS) model for classification of Electrocardiogram (ECG) signals. This method is based on using Symlet Wavelet Transform for analyzing the ECG signals and extracting the parameters related to dangerous cardiac arrhythmias. In these particular parameters ...
Park Juyoung J Department of Computer Science and Engineering, Hanyang University , Ansan, Republic of - - 2014
Abstract Background: The automatic interpretation of electrocardiography (ECG) data can provide continuous analysis of heart activity, allowing the effective use of wireless devices such as the Holter monitor. Materials and Methods: We propose an intelligent heartbeat monitoring system to detect the possibility of arrhythmia in real time. We detected heartbeats ...
Potyagaylo Danila D Institute of Biomedical Engineering, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany, - - 2014
The goal of ECG-imaging (ECGI) is to reconstruct heart electrical activity from body surface potential maps. The problem is ill-posed, which means that it is extremely sensitive to measurement and modeling errors. The most commonly used method to tackle this obstacle is Tikhonov regularization, which consists in converting the original ...
Wang Jin J School of Computer Science & Software Engineering, The University of Western Australia, Australia; Center for Intelligent Systems Research, Deakin University, Australia. Electronic address: - - 2014
Biomedical time series clustering that automatically groups a collection of time series according to their internal similarity is of importance for medical record management and inspection such as bio-signals archiving and retrieval. In this paper, a novel framework that automatically groups a set of unlabelled multichannel biomedical time series according ...
Luo Qingfei Q Department of Radiology, Stanford University, Stanford, CA 94305, USA. Electronic address: - - 2014
In simultaneous EEG-fMRI, the EEG recordings are severely contaminated by ballistocardiogram (BCG) artifacts, which are caused by cardiac pulsations. To reconstruct and remove the BCG artifacts, one promising method is to measure the artifacts in the absence of EEG signal by placing a group of electrodes (BCG electrodes) on a ...
Yin X-X XX Center for Applied Informatics and College of Enginering and Science, Victoria University, Footscray, VIC3011, Australia. Electronic address: - - 2014
This paper presents a novel approach to the automatic classification of very large data sets composed of terahertz pulse transient signals, highlighting their potential use in biochemical, biomedical, pharmaceutical and security applications. Two different types of THz spectra are considered in the classification process. Firstly a binary classification study of ...
Romild Ulla U Public Health Agency of Sweden, Östersund, - - 2014
Swelogs (Swedish Longitudinal Gambling Study) epidemiological (EP-) track is a prospective study with four waves of data-collection among Swedish citizens aged 16-84 years at baseline. The major objectives of this track are to provide general population estimates of the prevalence and incidence of problem and at-risk gambling and enable comparisons ...
Azil Aishah H AH Department of Parasitology and Medical Entomology, Faculty of Medicine, Pusat Perubatan UKM, Universiti Kebangsaan Malaysia; Sansom Institute for Health Research, University of South - - 2014
We investigated spatial autocorrelation of female Aedes aegypti L. mosquito abundance from BG-Sentinel trap and sticky ovitrap collections in Cairns, north Queensland, Australia. BG-Sentinel trap collections in 2010 show a significant spatial autocorrelation across the study site and over a smaller spatial extent, while sticky ovitrap collections only indicate a ...
Zhang Fan F Institute of Biomedical and Health Engineering and the Key Lab of Human-Machine-Intelligence Synergic System, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong, - - 2014
Bioelectric signals such as electromyogram (EMG) and electrocardiogram (ECG) are often affected by various low-frequency trending interferences. It is critical to remove these interferences from the recordings so that the critical features of the bioelectric signals could be clearly observed. In this study, an advanced method based on smoothness prior ...
Craven Darren - - 2014
This paper provides a comprehensive review of Compressed Sensing or Compressive Sampling (CS) in bioelectric signal compression applications. The aim is to provide a detailed analysis of the current trends in CS, focusing on the advantages and disadvantages in compressing different biosignals and its suitability for deployment in embedded hardware. ...
Kang Hyohyeong H Department of Computer Science and Engineering, Pohang University of Science and Technology, 77 Cheongam-ro, Nam-gu, Pohang 790-784, Republic of Korea. Electronic address: - - 2014
Multi-subject electroencephalography (EEG) classification involves algorithm development for automatically categorizing brain waves measured from multiple subjects who undergo the same mental task. Common spatial patterns (CSP) or its probabilistic counterpart, PCSP, is a popular discriminative feature extraction method for EEG classification. Models in CSP or PCSP are trained on a ...
Ulbrich Mark M RWTH Aachen University, Philips Chair for Medical Information Technology, Pauwelsstrasse 20, D-52074 Aachen, - - 2014
Measurement of hemodynamic parameters such as stroke volume (SV) via impedance cardiography (ICG) is an easy, non-invasive and inexpensive way to assess the health status of the heart. We present a possibility to use this technology for monitoring risk patients at home. The IMPACT Shirt (IMPedAnce Cardiography Textile) has been ...
Chen Shuo-Tsung ST Department of Applied Mathematics, Tunghai University, Taichung, 40704, Taiwan, - - 2014
Watermarking is the most widely used technology in the field of copyright and biological information protection. In this paper, we use quantization based digital watermark encryption technology on the Electrocardiogram (ECG) to protect patient rights and information. Three transform domains, DWT, DCT, and DFT are adopted to implement the quantization ...
Polania Luisa - - 2014
Recent results in telecardiology show that compressed sensing (CS) is a promising tool to lower energy consumption in wireless body area networks for electrocardiogram (ECG) monitoring. However, the performance of current CS-based algorithms, in terms of compression rate and reconstruction quality of the ECG, still falls short of the performance ...
Pedreira C C Centre for Systems Neuroscience, The University of Leicester, - - 2014
Scalp EEG recordings and the classification of interictal epileptiform discharges (IED) in patients with epilepsy provide valuable information about the epileptogenic network, particularly by defining the boundaries of the "irritative zone" (IZ), and hence are helpful during pre-surgical evaluation of patients with severe refractory epilepsies. The current detection and classification ...
Hawkley Louise C LC Correspondence should be addressed to Louise C. Hawkley, Academic Research Centers, NORC at the University of Chicago, 1155 E 60th Street, Chicago, IL 60637. E-mail: - - 2014
Objectives.This report seeks to inform National Social Life, Health, and Aging Project (NSHAP) data users of the prevalence and predictors of missing data in the in-person interview (CAPI) and leave-behind questionnaire (LBQ) in Wave 2 of NSHAP, and methods to handle missingness.Method.Missingness is quantified at the unit and item levels ...
Chaibi Sahbi S Sfax University, National Engineering School of Sfax, LETI Laboratory, ENIS BPW 3038- Sfax, Tunisia. Electronic address: - - 2014
Recent studies have reported that discrete High Frequency Oscillations (HFOs) in the range of 80-500Hz may serve as promising biomarkers of the seizure focus in humans. Visual scoring of HFOs is tiring, time consuming, highly subjective and requires a great deal of mental concentration. Due to the recent explosion of ...
Garcia Raquel A RA Department of Biogeography and Global Change, National Museum of Natural Sciences, Consejo Superior de Investigaciones Científicas, Calle José Gutierrez Abascal 2, 28006 Madrid, - - 2014
The 21st century is projected to witness unprecedented climatic changes, with greater warming often reported for high latitudes. Yet, climate change can be measured in a variety of ways, reflecting distinct dimensions of change with unequal spatial patterns across the world. Polar climates are projected to not only warm, but ...
Tinnakornsrisuphap Thidarat - - 2014
Electrocardiogram (ECG) data are stored and analyzed in different formats, devices, and computer platforms. As a result, ECG data from different monitoring devices cannot be displayed unless the user has access to the proprietary software of each particular device. This research describes an ontology and encoding for representation of ECG ...
Hung King-Chu KC Department of Computer and Communication Engineering, National Kaohsiung First University of Science and Technology, - - 2014
Reconstruction quality maintenance is of the essence for ECG data compression due to the desire for diagnosis use. Quantization schemes with non-linear distortion characteristics usually result in time-consuming quality control that blocks real-time application. In this paper, a new wavelet coefficient quantization scheme based on an evolution program (EP) is ...
Zettinig Oliver O Siemens Corporate Technology, Imaging and Computer Vision, Princeton, NJ, USA; Computer Aided Medical Procedures, Technische Universität München, - - 2014
Diagnosis and treatment of dilated cardiomyopathy (DCM) is challenging due to a large variety of causes and disease stages. Computational models of cardiac electrophysiology (EP) can be used to improve the assessment and prognosis of DCM, plan therapies and predict their outcome, but require personalization. In this work, we present ...
Kubendran Rajkumar - - 2014
Implantable and ambulatory measurement of physiological signals such as Bio-impedance using miniature biomedical devices needs careful tradeoff between limited power budget, measurement accuracy and complexity of implementation. This paper addresses this tradeoff through an extensive analysis of different stimulation and demodulation techniques for accurate Bio-impedance measurement. Three cases are considered ...
Oster Julien J a Department of Engineering Science , Institute of Biomedical Engineering, University of Oxford , Oxford , - - 2014
The electrocardiogram (ECG) is often acquired during magnetic resonance imaging (MRI), but its analysis is restricted by the presence of a strong artefact, called magnetohydrodynamic (MHD) effect. MHD effect is induced by the flow of electrically charged particles in the blood perpendicular to the static magnetic field, which creates a ...
Aydemir Onder O Karadeniz Technical University Faculty of Engineering Department of Electrical and Electronics Engineering 61080 Trabzon/TURKEY. Electronic address: - - 2014
Input signals of an EEG based brain computer interface (BCI) system are naturally non-stationary, have poor signal to noise ratio, depend on physical or mental tasks and are contaminated with various artifacts such as external electromagnetic waves, electromyogram and electrooculogram. All these disadvantages have motivated researchers to substantially improve speed ...
Dornelas Maria M Centre for Biological Diversity and Scottish Oceans Institute, School of Biology, University of St. Andrews, St. Andrews, Fife KY16 9TH, - - 2014
The extent to which biodiversity change in local assemblages contributes to global biodiversity loss is poorly understood. We analyzed 100 time series from biomes across Earth to ask how diversity within assemblages is changing through time. We quantified patterns of temporal α diversity, measured as change in local diversity, and ...
Atallah L L Patient Care Solutions Group, Philips Research, High Tech Campus, Eindhoven, The - - 2014
The thin skin of preterm babies is easily damaged by adhesive electrodes, tapes, chest drains and needle-marks. The scars caused could be disfiguring or disabling to 10% of preterm newborns. Capacitive sensors present an attractive option for pervasively monitoring neonatal ECG, and can be embedded in a support system or ...
Zhang Yu Y Key Laboratory for Advanced Control and Optimization for Chemical Processes, Ministry of Education, East China University of Science and Technology, Shanghai 200237, China. Electronic address: - - 2014
Canonical correlation analysis (CCA) has been successfully applied to steady-state visual evoked potential (SSVEP) recognition for brain-computer interface (BCI) application. Although the CCA method outperforms the traditional power spectral density analysis through multi-channel detection, it requires additionally pre-constructed reference signals of sine-cosine waves. It is likely to encounter overfitting in ...
Squara Fabien F Department of Cardiology, Pasteur University Hospital, Nice, France. Electronic address: - - 2014
Pacemaker (PM) interrogation requires correct manufacturer identification. However, unidentified PM is frequent, engaging in time-consuming steps to identify the device. This study sought to develop and validate a novel algorithm for PM manufacturer identification, utilizing the ECG response to the magnet application. Data of the magnet responses of all recent ...
Goya-Esteban R - - 2014
Although a number of methods have been proposed for T-Wave Alternans (TWA) detection and estimation, their performance strongly depends on their signal processing stages and on their free parameters tuning. The dependence of the system quality with respect to the main signal processing stages in TWA algorithms has not yet ...
Gokgoz Ercan E Faculty of Engineering and Information Technologies, International Burch University, Francuske Revolucije bb. Ilidza, Sarajevo, 71000, Bosnia and Herzegovina, - - 2014
Different approaches have been applied for quantitative analysis of EMG signals. This study introduces the effect of Multiscale Principal Component Analysis (MSPCA) denoising method in ElectroMyoGram (EMG) signal classification. The effect of the MSPCA denoising method discussed on EMG signal classification. In addition, effect of Multiple Single Classification (MUSIC) feature ...
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