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https://www.readbyqxmd.com/read/28227975/an-adaptive-deep-learning-approach-for-ppg-based-identification
#1
V Jindal, J Birjandtalab, M Baran Pouyan, M Nourani, V Jindal, J Birjandtalab, M Baran Pouyan, M Nourani, V Jindal, M Baran Pouyan, J Birjandtalab, M Nourani
Wearable biosensors have become increasingly popular in healthcare due to their capabilities for low cost and long term biosignal monitoring. This paper presents a novel two-stage technique to offer biometric identification using these biosensors through Deep Belief Networks and Restricted Boltzman Machines. Our identification approach improves robustness in current monitoring procedures within clinical, e-health and fitness environments using Photoplethysmography (PPG) signals through deep learning classification models...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227925/principal-component-analysis-can-decrease-neural-networks-performance-for-incipient-falls-detection-a-preliminary-study-with-hands-and-feet-accelerations
#2
Fiorenzo Artoni, Dario Martelli, Vito Monaco, Silvestre Micera, Fiorenzo Artoni, Dario Martelli, Vito Monaco, Silvestre Micera
Fall-related accidents constitute a major problem for elderly people and a burden to the health-care national system. It is therefore important to design devices (e.g., accelerometers) and machine learning algorithms able to recognize incipient falls as quickly and reliably as possible. Blind source separation (BSS) methods are often used as a preprocessing step before classification, however the effects of BSS on classification performance are not well understood. The aim of this work is to preliminarily characterize the effect that two methods, namely Principal and Independent Component Analysis (PCA and ICA) and their combined use have on the performance of a neural network in detecting incipient falls...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227769/identifying-the-effects-of-visceral-interoception-on-human-brain-connectome-a-multivariate-analysis-of-covariance-of-fmri-data
#3
Behnaz Jarrahi, Dante Mantini, Behnaz Jarrahi, Dante Mantini, Behnaz Jarrahi, Dante Mantini
Sources of variations in the neural circuitry of the human brain and interrelationship between intrinsic connectivity networks (ICNs) are still a matter of debate and ongoing research. Here, we applied a multivariate analysis of covariance (MANCOVA) based on high-dimensional independent component analysis (ICA) to identify the effects of interoception and related variables on human brain connectome. Fifteen healthy right-handed subjects (all females, age range 21 - 48 years; mean age = 30.3, SD = 8.7 years) underwent a blood-oxygen-level-dependent (BOLD) functional magnetic resonance imaging (fMRI) that included continuous intravesical saline infusion and drainage...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227633/beacon-based-opportunistic-scheduling-in-wireless-body-area-network
#4
Yang Zhou, Zhengguo Sheng, Victor C M Leung, Peyman Servati, Yang Zhou, Zhengguo Sheng, Victor C M Leung, Peyman Servati, Yang Zhou, Zhengguo Sheng, Victor C M Leung, Peyman Servati
Wireless Body Area Networks (WBANs) are one of the key technologies that support the development of digital health care, which has attracted increasing attention in recent years. Compared with general Wireless Sensor Networks (WSNs), WBANs have more stringent requirements on reliability and energy efficiency. Though WBANs are applied within limited transmission range, the on-body channel condition can be very challenging because of blocking or absorbing of signal. In this paper, we are looking into the design of Medium Access Control (MAC) protocols and propose an opportunistic scheduling scheme by applying heuristic scheduling and dynamic superframe length adjustment to improve the system performance...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227630/an-rf-powering-system-with-adaptive-impedance-matching-for-individual-health-monitoring-applications
#5
Zemin Liu, Yu-Pin Hsu, Mona M Hella, Zemin Liu, Yu-Pin Hsu, Mona M Hella, Yu-Pin Hsu, Mona M Hella, Zemin Liu
This paper presents a high-efficiency RF powering system, suitable for individual health monitoring applications. The system is composed of an antenna, an impedance matching network, and a two-stage full-wave RF-DC rectifier. A novel tuning mechanism is proposed to automatically adjust the impedance of the matching network. This mechanism can effectively improve the power efficiency of the system by 47% compared to the case without tuning. For the adaptive impedance, only a 5-bits binary weighted capacitor bank is required in the matching network...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227620/routing-over-multi-hop-fading-wireless-body-area-networks-with-reliability-considerations
#6
Hussein Moosavi, Francis Minhthang Bui, Hussein Moosavi, Francis Minhthang Bui, Francis Minhthang Bui, Hussein Moosavi
Optimal reliable routing is studied in the context of fading wireless body area networks (WBANs). A non-cooperative game is proposed to model and analyze the strategic interactions among body-worn health-care devices when each seeks to find the most reliable path to the hub. A distributed algorithm based on the proposed game is provided and proved to converge to a multi-hop Pareto-dominant Nash topology. The game-theoretic framework is evaluated through numerical simulations in conditions approximating actual deployment of a moving ultra wideband WBAN...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227352/in-bed-posture-classification-using-deep-autoencoders
#7
Mehrdad Heydarzadeh, Mehrdad Nourani, Sarah Ostadabbas, Mehrdad Heydarzadeh, Mehrdad Nourani, Sarah Ostadabbas, Sarah Ostadabbas, Mehrdad Nourani, Mehrdad Heydarzadeh
Pressure ulcers are high prevalence complications among bed-bound patients which are not only extremely painful and difficult to treat, but also impose a great burden in our health-care system. We target automatic posture detection which is a key module in all pressure ulcer monitoring platforms. Using data collected from a commercially-available pressure mapping system, we applied deep neural networks to automatically classify in-bed posture using features extracted from the histogram of gradient technique...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227140/map-reduce-for-optimizing-a-large-scale-dynamic-network-the-internet-of-hearts
#8
Chen Kan, Fabio M Leonelli, Hui Yang, Chen Kan, Fabio M Leonelli, Hui Yang, Hui Yang, Chen Kan, Fabio M Leonelli
Rapid advancements of sensing and mobile technology provide an unprecedented opportunity to empower smart and connected healthcare. Realizing the full potential of connected care depends, however, to a great extent on the capability of data analytics. Our previous study proposed a next-generation mobile health system, namely, the Internet of Heart (IoH). The IoH embeds patients into a dynamic network, where the distance between network nodes is determined by the dissimilarity of patients' conditions. Dynamics of the network reveal the change of clinical status of patients...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227040/representativeness-comparisons-of-nurse-and-computer-charting-of-heart-rate-across-nursing-intensity-protocols
#9
Jorge M Luna, Natalie Yip, Rimma Pivovarov, David K Vawdrey, Jorge M Luna, Natalie Yip, Rimma Pivovarov, David K Vawdrey, David K Vawdrey, Rimma Pivovarov, Jorge M Luna, Natalie Yip
Clinical teams in acute inpatient settings can greatly benefit from automated charting technologies that continuously monitor patient vital status. NewYork-Presbyterian has designed and developed a real-time patient monitoring system that integrates vital signs sensors, networking, and electronic health records, to allow for automatic charting of patient status. We evaluate the representativeness (a combination of agreement, safety and timing) of a core vital sign across nursing intensity care protocols for preliminary feasibility assessment...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227036/using-i2b2-to-bootstrap-rural-health-analytics-and-learning-networks
#10
Daniel R Harris, Adam D Baus, Tamela J Harper, Traci D Jarrett, Cecil R Pollard, Jeffery C Talbert, Daniel R Harris, Adam D Baus, Tamela J Harper, Traci D Jarrett, Cecil R Pollard, Jeffery C Talbert, Jeffery C Talbert, Daniel R Harris, Traci D Jarrett, Tamela J Harper, Adam D Baus, Cecil R Pollard
We demonstrate that the open-source i2b2 (Informatics for Integrating Biology and the Bedside) data model can be used to bootstrap rural health analytics and learning networks. These networks promote communication and research initiatives by providing the infrastructure necessary for sharing data and insights across a group of healthcare and research partners. Data integration remains a crucial challenge in connecting rural healthcare sites with a common data sharing and learning network due to the lack of interoperability and standards within electronic health records...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226282/systematic-identification-of-flavonols-flavonol-glycosides-triterpene-and-siraitic-acid-glycosides-from-siraitia-grosvenorii-using-high-performance-liquid-chromatography-quadrupole-time-of-flight-mass-spectrometry-combined-with-a-screening-strategy
#11
Zhi-Xing Qing, Huan Zhao, Qi Tang, Chang-Ming Mo, Peng Huang, Pi Cheng, Peng Yang, Xue-Yi Yang, Xiu-Bin Liu, Ya-Jie Zheng, Jian-Guo Zeng
The fruits of Siraitia grosvenorii are considered to be health-promoting because of the diversity of their bioactive ingredients. In the present study, a screening method, using high-performance liquid chromatography/quadrupole-time-of-flight mass spectrometry (HPLC-Q-TOF-MS) combined with a screening strategy, has been established. The technology was used to systematically screening the targeted metabolites, primarily from the complex matrix of S. grosvenorii. The compounds were then identified by their exact masses and characteristic fragment ions, in comparison with the fragmentation behaviors of 19 references...
February 16, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28226226/microglia-function-in-the-central-nervous-system-during-health-and-neurodegeneration
#12
Marco Colonna, Oleg Butovsky
Microglia are resident cells of the brain that regulate brain development, maintenance of neuronal networks, and injury repair. Microglia serve as brain macrophages but are distinct from other tissue macrophages owing to their unique homeostatic phenotype and tight regulation by the central nervous system (CNS) microenvironment. They are responsible for the elimination of microbes, dead cells, redundant synapses, protein aggregates, and other particulate and soluble antigens that may endanger the CNS. Furthermore, as the primary source of proinflammatory cytokines, microglia are pivotal mediators of neuroinflammation and can induce or modulate a broad spectrum of cellular responses...
February 9, 2017: Annual Review of Immunology
https://www.readbyqxmd.com/read/28226050/coping-with-child-violencein-primary-care-how-do-professionals-perceive-it
#13
Emiko Yoshikawa Egry, Maíra Rosa Apostólico, Teresa Christine Pereira Morais, Caroline Carapiá Ribas Lisboa
Objective: to know the perception of health professionals working in primary care about child violence, since this has increased progressively in the world, requiring every effort to intervene. Method: this is a qualitative, descriptive and exploratory study performed through interviews with professionals in primary care in a health district of São Paulo. The Alceste tool was used for analysis of data from the speeches. Results: perceptions of professionals point to the limits and difficulties of the care network with coping; need for intersectoral action; violence situations identified within the caresetting; and causes and effects of violence on child development...
January 2017: Revista Brasileira de Enfermagem
https://www.readbyqxmd.com/read/28226017/-evaluation-of-psychosocial-care-centers-structure-in-the-region-of-m%C3%A3-dio-paraopeba-minas-gerais-brazil
#14
Sarah Nascimento Silva, Marina Guimarães Lima
OBJECTIVE: to evaluate the physical facilities, human resources and activities developed in the Psychosocial Care Centers (CAPS) in the region of Médio Paraopeba, Minas Gerais, Brazil, in 2014. METHODS: this is an evaluation study of the dimensions of structure and processes proposed by Donabedian, based on recommendations of the Ministry of Health and current laws; semi-structured forms were used to interview health managers; direct observation of mental health services was performed...
January 2017: Epidemiologia e Servicos de Saude: Revista do Sistema Unico de Saude do Brasil
https://www.readbyqxmd.com/read/28225707/nonadherence-to-antiretroviral-therapy-among-hiv-infected-patients-in-zambia-is-concentrated-among-a-minority-of-patients-and-is-highly-variable-across-clinics
#15
Nancy L Czaicki, Charles B Holmes, Izukanji Sikazwe, Carolyn Bolton, Theodora Savory, Mwanza Wa Mwanza, Crispin Moyo, Nancy S Padian, Elvin H Geng
OBJECTIVES: The distribution of adherence to antiretroviral therapy (ART) can indicates whether barriers are concentrated or more distributed. We quantified the medication possession ratio (MPR) and characterized the distribution of medication nonpossession in a network of clinics in Zambia to identify 'hotspots' and predictors of poorer adherence. METHODS: We analyzed a population of adults on ART for more than 3 months who made at least one clinic visit between 1 January 2013 and 28 February 2015...
March 13, 2017: AIDS
https://www.readbyqxmd.com/read/28225427/race-differences-in-initial-presentation-early-treatment-and-1-year-outcomes-of-pediatric-crohn-s-disease-results-from-the-improvecarenow-network
#16
Jennifer L Dotson, Michele Cho, Josh Bricker, Michael D Kappelman, Deena J Chisolm, Gitit Tomer, Wallace V Crandall
BACKGROUND: Racially disparate care has been shown to contribute to suboptimal health care outcomes for minorities. Using the ImproveCareNow network, we investigated differences in management and outcomes of pediatric patients with Crohn's disease at diagnosis and 1-year postdiagnosis. METHODS: ImproveCareNow is a learning health network for pediatric inflammatory bowel disease. It contains prospective, longitudinal data from outpatient encounters. This retrospective study included all patients with Crohn's disease ≤21 years, September 2006 to October 2014, with the first recorded encounter ≤90 days from date of diagnosis and an encounter 1 year ±60 days...
February 20, 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28225165/the-contrasting-role-of-th17-immunity-in-human-health-and-disease
#17
Edwin Hoe, Jeremy Anderson, Jordan Nathanielsz, Zheng Quan Toh, Rachel Marimla, Anne Balloch, Paul V Licciardi
The human immune system is a tightly regulated network that protects the host from disease. An important aspect of this is the balance between pro-inflammatory Th17 cells and anti-inflammatory Treg cells in maintaining immune homeostasis. Foxp3+ Treg are critical for sustaining immune tolerance through IL-10 and TGF-β while RORγt+ Th17 cells promote immunopathology and auto-inflammatory diseases through the actions of IL-17A, IL-21 and IL-22. Therefore, the imbalance between Treg and Th17 cells can result in serious pathology in many organs and tissues in the body...
February 22, 2017: Microbiology and Immunology
https://www.readbyqxmd.com/read/28225055/alcoholic-beverage-preference-and-diabetes-incidence-across-europe-the-consortium-on-health-and-ageing-network-of-cohorts-in-europe-and-the-united-states-chances-project
#18
D Sluik, N Jankovic, M Hughes, M G O'Doherty, B Schöttker, W Drygas, O Rolandsson, S Männistö, J M Ordóñez-Mena, J Ferrieres, C Bamia, G de Gaetano, J C Kiefte-De Jong, O H Franco, I Sluijs, A M W Spijkerman, S Sans, S Eriksson, D Kromhout, A Trichopoulou, T Wilsgaard, H Brenner, K Kuulasmaa, T Laatikainen, S Söderberg, L Iacoviello, P Boffetta, F Kee, E J M Feskens
BACKGROUND/OBJECTIVES: It is unknown if wine, beer and spirit intake lead to a similar association with diabetes. We studied the association between alcoholic beverage preference and type 2 diabetes incidence in persons who reported to consume alcohol. SUBJECTS/METHODS: Ten European cohort studies from the Consortium on Health and Ageing: Network of Cohorts in Europe and the United States were included, comprising participant data of 62 458 adults who reported alcohol consumption at baseline...
February 22, 2017: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28224760/a-tree-parenchyma-coupled-model-for-lung-ventilation-simulation
#19
N Pozin, S Montesantos, I Katz, M Pichelin, I Vignon-Clementel, C Grandmont
In this article we develop a lung-ventilation model. The parenchyma is described as an elastic homogenized media. It is irrigated by a space-filling dyadic resistive pipe network, which represents the tracheo-bronchial tree. In this model the tree and the parenchyma are strongly coupled. The tree induces an extra viscous term in the system constitutive relation, which leads, in the finite element framework, to a full matrix. We consider an efficient algorithm that takes advantage of the tree structure to enable a fast matrix-vector product computation...
February 22, 2017: International Journal for Numerical Methods in Biomedical Engineering
https://www.readbyqxmd.com/read/28224636/the-contactless-vital-sensing-system-precisely-reflects-r-r-interval-in-electrocardiograms-of-healthy-subjects
#20
Kentaro Suga, Hikaru Hori, Asuka Katsuki, Masahiro Ohashi, Tadanori Tezuka, Masatoshi Matsuo, Tsuyoshi Nakamura, Reiji Yoshimura
BACKGROUND: The aim of the present study was to investigate the validity of the contactless vital sensing system that we previously developed. METHODS: A total of one hundred and eleven healthy Japanese subjects were recruited from the University of Occupational and Environmental Health and the Panasonic Corporation AVC Networks Company. All subjects underwent an evaluation using the contactless vital sensing system and electrocardiography (ECG). We compared the R-R interval (RRI) obtained using the new contactless sensing system to that obtained using ECG...
February 22, 2017: Pacing and Clinical Electrophysiology: PACE
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