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https://www.readbyqxmd.com/read/28106853/significant-change-spotting-for-periodic-human-motion-segmentation-of-cleaning-tasks-using-wearable-sensors
#1
Kai-Chun Liu, Chia-Tai Chan
The proportion of the aging population is rapidly increasing around the world, which will cause stress on society and healthcare systems. In recent years, advances in technology have created new opportunities for automatic activities of daily living (ADL) monitoring to improve the quality of life and provide adequate medical service for the elderly. Such automatic ADL monitoring requires reliable ADL information on a fine-grained level, especially for the status of interaction between body gestures and the environment in the real-world...
January 19, 2017: Sensors
https://www.readbyqxmd.com/read/28106832/plaimos-a-remote-mobile-healthcare-platform-to-monitor-cardiovascular-and-respiratory-variables
#2
Ramses Miramontes, Raúl Aquino, Arturo Flores, Guillermo Rodríguez, Rafael Anguiano, Arturo Ríos, Arthur Edwards
The number of elderly and chronically ill patients has grown significantly over the past few decades as life expectancy has increased worldwide, leading to increased demands on the health care system and significantly taxing traditional health care practices. Consequently, there is an urgent need to use technology to innovate and more constantly and intensely monitor, report and analyze critical patient physiological parameters beyond conventional clinical settings in a more efficient and cost effective manner...
January 19, 2017: Sensors
https://www.readbyqxmd.com/read/28106747/design-of-wearable-breathing-sound-monitoring-system-for-real-time-wheeze-detection
#3
Shih-Hong Li, Bor-Shing Lin, Chen-Han Tsai, Cheng-Ta Yang, Bor-Shyh Lin
In the clinic, the wheezing sound is usually considered as an indicator symptom to reflect the degree of airway obstruction. The auscultation approach is the most common way to diagnose wheezing sounds, but it subjectively depends on the experience of the physician. Several previous studies attempted to extract the features of breathing sounds to detect wheezing sounds automatically. However, there is still a lack of suitable monitoring systems for real-time wheeze detection in daily life. In this study, a wearable and wireless breathing sound monitoring system for real-time wheeze detection was proposed...
January 17, 2017: Sensors
https://www.readbyqxmd.com/read/28106333/translating-precision
#4
EDITORIAL
Michael A Pacanowski
Precision medicine is based on a simple precept that deep information about an individual patient can be used to guide his or her health care. In the not-too-distant future, clinicians may have point-of-care access to an individual's entire genome, dense data captured from wearable devices, and informatics tools that aggregate data from clinical experience to allow for real-time decision support. The innovative technologies being developed in pursuit of precision medicine afford researchers and clinicians the opportunity to generate and consume information at an unprecedented scale...
January 20, 2017: Clinical and Translational Science
https://www.readbyqxmd.com/read/28105745/thin-soft-skin-mounted-microfluidic-networks-with-capillary-bursting-valves-for-chrono-sampling-of-sweat
#5
Jungil Choi, Daeshik Kang, Seungyong Han, Sung Bong Kim, John A Rogers
Systems for time sequential capture of microliter volumes of sweat released from targeted regions of the skin offer the potential to enable analysis of temporal variations in electrolyte balance and biomarker concentration throughout a period of interest. Current methods that rely on absorbent pads taped to the skin do not offer the ease of use in sweat capture needed for quantitative tracking; emerging classes of electronic wearable sweat analysis systems do not directly manage sweat-induced fluid flows for sample isolation...
January 20, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28103565/a-scan-line-forest-growing-based-hand-segmentation-framework-with-multipriority-vertex-stereo-matching-for-wearable-devices
#6
Yiyi Ren, Xiang Xie, Guolin Li, Zhihua Wang
A hand segmentation framework is proposed for 3-D hand gesture interaction for wearable devices. In this framework, all the objects in a scene are regarded as directed trees in a forest, and the problem of the hand segmentation can be converted into finding the target tree (called hand tree) in the forest with proper hand properties including color consistency, space consistency, disparity, and hand shape constraints. The forest grows scan-line by scan-line from high reliable regions to low reliable regions...
January 16, 2017: IEEE Transactions on Cybernetics
https://www.readbyqxmd.com/read/28103196/sensor-based-gait-parameter-extraction-with-deep-convolutional-neural-networks
#7
Julius Hannink, Thomas Kautz, Cristian Pasluosta, Karl-Gunter Gassmann, Jochen Klucken, Bjoern Eskofier
Measurement of stride-related, biomechanical parameters is the common rationale for objective gait impairment scoring. State-of-the-art double integration approaches to extract these parameters from inertial sensor data are, however, limited in their clinical applicability due to the underlying assumptions. To overcome this, we present a method to translate the abstract information provided by wearable sensors to context-related expert features based on deep convolutional neural networks. Regarding mobile gait analysis, this enables integration-free and data-driven extraction of a set of eight spatio-temporal stride parameters...
December 8, 2016: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/28102833/a-multimodal-approach-to-estimating-vigilance-using-eeg-and-forehead-eog
#8
Wei-Long Zheng, Baoliang Lu
OBJECTIVE: Covert aspects of ongoing user mental states provide key context information for user-aware human computer interactions. In this paper, we focus on the problem of estimating the vigilance of users using EEG and EOG signals. APPROACH: The PERCLOS index as vigilance annotation is obtained from eye tracking glasses. To improve the feasibility and wearability of vigilance estimation devices for real-world applications, we adopt a novel electrode placement for forehead EOG and extract various eye movement features, which contain the principal information of traditional EOG...
January 19, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28102074/growth-of-a-large-area-free-standing-highly-conductive-and-fully-foldable-silver-film-with-inverted-pyramids-for-wearable-electronics-applications
#9
Xiao Yu, Zihua Li, Yong Liu, Wen-Xia Zhao, Ruimei Xu, Donghai Wang, Hui Shen
A promising new concept is the application of flexible and foldable conductive film or paper for wearable electronics, in which silver nanowires, carbon nanotubes and graphene are primarily used as conductive materials. However, their insufficient nanostructure contacts lead to poor electrical conductivity and mechanical fracture. Here, we demonstrate a simple and innovative strategy for fabricating a free-standing silver film with inverted pyramids by replicating pyramids on a textured silicon wafer under a hydrothermal reaction...
January 19, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28101443/national-physical-activity-surveillance-users-of-wearable-activity-monitors-as-a-potential-data-source
#10
John D Omura, Susan A Carlson, Prabasaj Paul, Kathleen B Watson, Janet E Fulton
The objective of this study was to assess usage patterns of wearable activity monitors among US adults and how user characteristics might influence physical activity estimates from this type of sample. We analyzed data on 3367 respondents to the 2015 HealthStyles survey, an annual consumer mail panel survey conducted on a nationwide sample. Approximately 1 in 8 respondents (12.5%) reported currently using a wearable activity monitor. Current use varied by sex, age, and education level. Use increased with physical activity level from 4...
March 2017: Preventive Medicine Reports
https://www.readbyqxmd.com/read/28100086/tracking-down-a-solution-exploring-the-acceptability-and-value-of-wearable-gps-devices-for-older-persons-individuals-with-a-disability-and-their-support-persons
#11
Brittany Williamson, Tammy Aplin, Desleigh de Jonge, Matthew Goyne
PURPOSE: To explore the acceptability and value of three wearable GPS devices for older persons and individuals with a disability and safety concerns when accessing the community. METHODS: This pilot study explored six wearers' and their support persons' experience of using three different wearable GPS devices (a pendant, watch, and mini GPS phone), each for a two-week period. RESULTS: Participants identified safety as the main value of using a wearable GPS device...
January 18, 2017: Disability and Rehabilitation. Assistive Technology
https://www.readbyqxmd.com/read/28099965/pilot-test-of-a-new-personal-health-system-integrating-environmental-and-wearable-sensors-for-telemonitoring-and-care-of-elderly-people-at-home-smarta-project
#12
Lucia Pigini, Gabriele Bovi, Claudia Panzarino, Valerio Gower, Maurizio Ferratini, Giuseppe Andreoni, Roberto Sassi, Massimo W Rivolta, Maurizio Ferrarin
BACKGROUND: The increase in life expectancy is accompanied by a growing number of elderly subjects affected by chronic comorbidities, a health issue which also implies important socioeconomic consequences. Shifting from hospital or community dwelling care towards a home personalized healthcare paradigm would promote active aging with a better quality of life, along with a reduction in healthcare-related costs. OBJECTIVE: The aim of the SMARTA project was to develop and test an innovative personal health system integrating standard sensors as well as innovative wearable and environmental sensors to allow home telemonitoring of vital parameters and detection of anomalies in daily activities, thus supporting active aging through remote healthcare...
January 19, 2017: Gerontology
https://www.readbyqxmd.com/read/28098831/a-fast-multimodal-ectopic-beat-detection-method-applied-for-blood-pressure-estimation-based-on-pulse-wave-velocity-measurements-in-wearable-sensors
#13
Maik Pflugradt, Kai Geissdoerfer, Matthias Goernig, Reinhold Orglmeister
Automatic detection of ectopic beats has become a thoroughly researched topic, with literature providing manifold proposals typically incorporating morphological analysis of the electrocardiogram (ECG). Although being well understood, its utilization is often neglected, especially in practical monitoring situations like online evaluation of signals acquired in wearable sensors. Continuous blood pressure estimation based on pulse wave velocity considerations is a prominent example, which depends on careful fiducial point extraction and is therefore seriously affected during periods of increased occurring extrasystoles...
January 14, 2017: Sensors
https://www.readbyqxmd.com/read/28098454/high-sensitive-wearable-textile-based-humidity-sensor-made-of-high-strength-single-walled-carbon-nanotube-swcnt-poly-vinyl-alcohol-pva-filaments
#14
Gengheng Zhou, Joon-Hyung Byun, Youngseok Oh, Byung-Mun Jung, Hwa-Jin Cha, Dong Gi Seong, Moon-Kwang Um, Sangil Hyun, Tsu-Wei Chou
Textile-based humidity sensors can be an important component of smart wearable electronic-textiles and have potential applications in the management of wounds, bed-wetting, and skin pathologies or for microclimate control in clothing. Here, we report a wearable textile-based humidity sensor for the first time using high strength (~750 MPa) and ultra-tough (energy-to-break, 4300 J g-1) SWCNT/PVA filaments via a wet-spinning process. The conductive SWCNT networks in the filaments can be modulated by adjusting the intertube distance by swelling the PVA molecular chains via the absorption of water molecules...
January 18, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28098252/flexible-and-wavelength-selective-mos2-phototransistors-with-monolithically-integrated-transmission-color-filters
#15
Geonwook Yoo, Sol Lea Choi, Sang Jin Park, Kyu-Tae Lee, Sanghyun Lee, Min Suk Oh, Junseok Heo, Hui Joon Park
Color-selective or wavelength-tunable capability is a crucial feature for two-dimensional (2-D) semiconducting material-based image sensor applications. Here, we report on flexible and wavelength-selective molybdenum disulfide (MoS2) phototransistors using monolithically integrated transmission Fabry-Perot (F-P) cavity filters. The fabricated multilayer MoS2 phototransistors on a polyarylate substrate exhibit decent electrical characteristics (μFE > 64.4 cm(2)/Vs, on/off ratio > 10(6)), and the integrated F-P filters, being able to cover whole visible spectrum, successfully modulate the spectral response characteristics of MoS2 phototransistors from ~495 nm (blue) to ~590 nm (amber)...
January 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28098249/enhancing-dielectric-permittivity-for-energy-storage-devices-through-tricritical-phenomenon
#16
Jinghui Gao, Yan Wang, Yongbin Liu, Xinghao Hu, Xiaoqin Ke, Lisheng Zhong, Yuting He, Xiaobing Ren
Although dielectric energy-storing devices are frequently used in high voltage level, the fast growing on the portable and wearable electronics have been increasing the demand on the energy-storing devices at finite electric field strength. This paper proposes an approach on enhancing energy density under low electric field through compositionally inducing tricriticality in Ba(Ti,Sn)O3 ferroelectric material system with enlarged dielectric response. The optimal dielectric permittivity at tricritical point can reach to εr = 5...
January 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28098192/wearable-atmospheric-pressure-plasma-fabrics-produced-by-knitting-flexible-wire-electrodes-for-the-decontamination-of-chemical-warfare-agents
#17
Heesoo Jung, Jin Ah Seo, Seungki Choi
One of the key reasons for the limited use of atmospheric pressure plasma (APP) is its inability to treat non-flat, three-dimensional (3D) surface structures, such as electronic devices and the human body, because of the rigid electrode structure required. In this study, a new APP system design-wearable APP (WAPP)-that utilizes a knitting technique to assemble flexible co-axial wire electrodes into a large-area plasma fabric is presented. The WAPP device operates in ambient air with a fully enclosed power electrode and grounded outer electrode...
January 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28097627/adherence-with-physical-activity-monitoring-wearable-devices-in-a-community-based-population-observations-from-the-washington-d-c-cardiovascular-health-and-needs-assessment
#18
Leah R Yingling, Valerie Mitchell, Colby R Ayers, Marlene Peters-Lawrence, Gwenyth R Wallen, Alyssa T Brooks, James F Troendle, Joel Adu-Brimpong, Samantha Thomas, JaWanna Henry, Johnetta N Saygbe, Dana M Sampson, Allan A Johnson, Avis P Graham, Lennox A Graham, Kenneth L Wiley, Tiffany Powell-Wiley
Wearable mobile health (mHealth) technologies offer approaches for targeting physical activity (PA) in resource-limited, community-based interventions. We sought to explore user characteristics of PA tracking, wearable technology among a community-based population within a health and needs assessment. In 2014-2015, we conducted the Washington, D.C., Cardiovascular Health and Needs Assessment in predominantly African-American churches among communities with higher obesity rates and lower household incomes. Participants received a mHealth PA monitor and wirelessly uploaded PA data weekly to church data collection hubs...
January 17, 2017: Translational Behavioral Medicine
https://www.readbyqxmd.com/read/28097597/self-powered-active-sensor-with-concentric-topography-of-piezoelectric-fibers
#19
Yiin Kuen Fuh, Zih Ming Huang, Bo Sheng Wang, Shan Chien Li
In this study, we demonstrated a flexible and self-powered sensor based on piezoelectric fibers in the diameter range of nano- and micro-scales. Our work is distinctively different from previous electrospinning research; we fabricated this apparatus precisely via near-field electrospinning which has a spectacular performance to harvest mechanical deformation in arbitrary direction and a novel concentrically circular topography. There are many piezoelectric devices based on electrospinning polymeric fibers. However, the fibers were mostly patterned in parallel lines and they could be actuated in limited direction only...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28096098/avoiding-untimely-implantable-cardioverter-defibrillator-implantation-by-intensified-heart-failure-therapy-optimization-supported-by-the-wearable-cardioverter-defibrillator-the-prolong-study
#20
David Duncker, Thorben König, Stephan Hohmann, Johann Bauersachs, Christian Veltmann
BACKGROUND: Optimal timing of implantation of an implantable cardioverter/defibrillator (ICD) after newly diagnosed heart failure is unclear given that late reverse remodelling may occur. We aimed to analyze left ventricular ejection fraction (LVEF) after diagnosis of an LVEF ≤35% during optimization of heart failure drug therapy. METHODS AND RESULTS: One hundred fifty-six patients with newly diagnosed LVEF ≤35% receiving a wearable cardioverter/defibrillator (WCD) were analyzed...
January 17, 2017: Journal of the American Heart Association
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