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https://www.readbyqxmd.com/read/28927171/evolving-quality-standards-for-large-scale-registries-the-garfield-af-experience
#1
Keith A A Fox, Bernard J Gersh, Sory Traore, A John Camm, Gloria Kayani, Anders Krogh, Shweta Shweta, Ajay K Kakkar
Aims: Registries have the potential to capture treatment practices and outcomes in populations beyond the constraints of clinical trial settings. The value of data obtained depend critically upon robust quality standards (including source data verification [SDV] and training); features that are commonly absent from registries. This article outlines the quality standards developed for Global Anticoagulant Registry in the FIELD-Atrial Fibrillation (GARFIELD-AF). Methods and Results: GARFIELD-AF comprises ∼57 000 patients prospectively recruited over 6...
April 1, 2017: European Heart Journal. Quality of Care & Clinical Outcomes
https://www.readbyqxmd.com/read/28919936/polar-applications-of-spaceborne-scatterometers
#2
David G Long
Wind scatterometers were originally developed for observation of near-surface winds over the ocean. They retrieve wind indirectly by measuring the normalized radar cross section (σ(o) ) of the surface, and estimating the wind via a geophysical model function relating σ(o) to the vector wind. The σ(o) measurements have proven to be remarkably capable in studies of the polar regions where they can map snow cover; detect the freeze/thaw state of forest, tundra, and ice; map and classify sea ice; and track icebergs...
May 2017: IEEE J Sel Top Appl Earth Obs Remote Sens
https://www.readbyqxmd.com/read/28917887/a-visible-and-controllable-porphyrin-poly-ethylene-glycol-%C3%AE-cyclodextrin-hydrogel-nanocomposites-system-for-photo-response
#3
Jie Liang, Xia Dong, Chang Wei, Guilei Ma, Tianjun Liu, Deling Kong, Feng Lv
The real-time controlling and tracking of the evolution and status of the hydrogel are important challenges for accurate and precise assessments. In this article, a visible and controllable hydrogel nanocomposites system for photo response was designed and developed based on a thermosensitive porphyrin-poly(ethylene glycol)/α-cyclodextrin hydrogel loaded with multi-walled carbon nanotubes (PPEG-MWNTs/α-CD). The PPEG-MWNTs/α-CD hydrogel was simply self-assembled with a carbon nanotubes dispersed porphyrin-poly(ethylene glycol) solution and an aqueous solution of α-cyclodextrin by homogeneous stirring...
November 1, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28917559/predictors-and-outcomes-of-cardiac-resynchronization-therapy-extended-to-the-second-generator
#4
Xuping Li, Dachun Yang, Fred Kusumoto, Win-Guang Shen, Siva Mulpuru, Shenghua Zhou, Jinjun Liang, Gang Wu, Mei Yang, Jin-Qu Liu, Paul A Friedman, Yong-Mei Cha
BACKGROUND: A proportion of patients who receive cardiac resynchronization therapy (CRT) with defibrillator (CRT-D) live to receive a second generator. Controversy exists on whether an implantable cardioverter-defibrillator (ICD) should be offered to patients who have normalized or near normalized left ventricular ejection fraction (LVEF) at the time of generator replacement (GR). OBJECTIVE: To evaluate incidence of appropriate ICD therapy after CRT-D GR. METHODS: This series involved 1,026 consecutive patients who underwent CRT-D implant between January 2002 and December 2012...
September 13, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28913915/home-use-remotely-supervised-and-remotely-controlled-transcranial-direct-current-stimulation-a-systematic-review-of-the-available-evidence
#5
REVIEW
Ulrich Palm, Ulrike Kumpf, Nora Behler, Linda Wulf, Beatrice Kirsch, Jana Wörsching, Daniel Keeser, Alkomiet Hasan, Frank Padberg
OBJECTIVES: Transcranial direct current stimulation (tDCS) is gaining growing importance in the treatment of neurological and psychiatric disorders and is currently investigated for home-based and remotely supervised applications. METHODS: Here, we systematically review the available evidence from a database search (PubMed, ICTRP, clinicaltrials.gov) from January 2000 to May 2017. RESULTS: We detected 22 original research papers, trial protocols or trial registrations dealing with tDCS as an add-on intervention to cognitive or physiotherapeutic intervention...
September 15, 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/28906446/a-novel-low-power-consumption-all-fiber-optic-anemometer-with-simple-system-design
#6
Yang Zhang, Fang Wang, Zhihui Duan, Zexu Liu, Zigeng Liu, Zhenlin Wu, Yiying Gu, Changsen Sun, Wei Peng
A compact and low-power consuming fiber-optic anemometer based on single-walled carbon nanotubes (SWCNTs) coated tilted fiber Bragg grating (TFBG) is presented. TFBG as a near infrared in-fiber sensing element is able to excite a number of cladding modes and radiation modes in the fiber and effectively couple light in the core to interact with the fiber surrounding mediums. It is an ideal in-fiber device used in a fiber hot-wire anemometer (HWA) as both coupling and sensing elements to simplify the sensing head structure...
September 14, 2017: Sensors
https://www.readbyqxmd.com/read/28905711/automated-tracking-of-motion-and-body-weight-for-objective-monitoring-of-rats-in-colony-housing
#7
Christian Brenneis, Andreas Westhof, Jeannine Holschbach, Martin Michaelis, Hans Guehring, Kerstin Kleinschmidt-Doerr
Living together in large social communities within an enriched environment stimulates self-motivated activity in rats. We developed a modular housing system in which a single unit can accommodate as many as 48 rats and contains multiple functional areas. This rat colony cage further allowed us to remotely measure body weight and to continuously measure movement, including jumping and stair walking between areas. Compared with pair-housed, age-, strain-, and weight-matched rats in conventional cages, the colony-housed rats exhibited higher body mass indices, had more exploratory behavior, and were more cooperative during handling...
January 1, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28905426/optically-controlled-on-coil-amplifier-with-rf-monitoring-feedback
#8
Natalia Gudino, Jacco A de Zwart, Qi Duan, Stephen J Dodd, Joe Murphy-Boesch, Peter van Gelderen, Jeff H Duyn
PURPOSE: To develop a new optically controlled on-coil amplifier that facilitates safe use of multi-channel radiofrequency (RF) transmission in MRI by real-time monitoring of signal phase and amplitude. METHODS: Monitoring was carried out with a 4-channel prototype system by sensing, down sampling, digitizing, and optically transmitting the RF transmit signal to a remote PC to control the amplifiers. Performance was evaluated with benchtop and 7 T MRI experiments...
September 14, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28904763/winter-bait-stations-as-a-multispecies-survey-tool
#9
Lacy Robinson, Samuel A Cushman, Michael K Lucid
Winter bait stations are becoming a commonly used technique for multispecies inventory and monitoring but a technical evaluation of their effectiveness is lacking. Bait stations have three components: carcass attractant, remote camera, and hair snare. Our 22,975 km(2) mountainous study area was stratified with a 5 × 5 km sampling grid centered on northern Idaho and including portions of Washington, Montana, and British Columbia. From 2010-14, we conducted 563 sampling sessions at 497 bait stations in 453 5 × 5 km cells...
September 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28903892/effectiveness-of-smartmoms-a-novel-ehealth-intervention-for-management-of-gestational-weight-gain-randomized-controlled-pilot-trial
#10
Leanne M Redman, L Anne Gilmore, Jeffrey Breaux, Diana M Thomas, Karen Elkind-Hirsch, Tiffany Stewart, Daniel S Hsia, Jeffrey Burton, John W Apolzan, Loren E Cain, Abby D Altazan, Shelly Ragusa, Heather Brady, Allison Davis, J Mick Tilford, Elizabeth F Sutton, Corby K Martin
BACKGROUND: Two-thirds of pregnant women exceed gestational weight gain (GWG) recommendations. Because excess GWG is associated with adverse outcomes for mother and child, development of scalable and cost-effective approaches to deliver intensive lifestyle programs during pregnancy is urgent. OBJECTIVE: The aim of this study was to decrease the proportion of women who exceed the Institute of Medicine (IOM) 2009 GWG guidelines. METHODS: In a parallel-arm randomized controlled trial, 54 pregnant women (age 18-40 years) who were overweight (n=25) or obese (n=29) were enrolled to test whether an intensive lifestyle intervention (called SmartMoms) decreased the proportion of women with excess GWG, defined as exceeding the 2009 IOM guidelines, compared to no intervention (usual care group)...
September 13, 2017: JMIR MHealth and UHealth
https://www.readbyqxmd.com/read/28902425/efficient-catalytic-microreactors-with-atomic-layer-deposited-platinum-nanoparticles-on-oxide-support
#11
Ville Rontu, Anne Selent, Vladimir Zhivonitko, Gianmario Scotti, Igor Koptyug, Ville-Veikko Telkki, Sami Franssila
Microreactors attract a significant interest for chemical synthesis due to benefits of small scales such as high surface to volume ratio, rapid thermal ramping and well-understood laminar flows. The suitability of atomic layer deposition for applying of both the catalyst nanoparticles and the support material on the surfaces of channels of microfabricated silicon microreactors is demonstrated in this research. Continuous flow hydrogenation of propene into propane at low temperatures with TiO₂ supported catalytic Pt nanoparticles was used as a model reaction...
September 13, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28901631/equine-behavioral-enrichment-toys-as-tools-for-non-invasive-recovery-of-viral-and-host-dna
#12
Peter A Seeber, Sanatana E Soilemetzidou, Marion L East, Chris Walzer, Alex D Greenwood
Direct collection of samples from wildlife can be difficult and sometimes impossible. Non-invasive remote sampling for the purpose of DNA extraction is a potential tool for monitoring the presence of wildlife at the individual level, and for identifying the pathogens shed by wildlife. Equine herpesviruses (EHV) are common pathogens of equids that can be fatal if transmitted to other mammals. Transmission usually occurs by nasal aerosol discharge from virus-shedding individuals. The aim of this study was to validate a simple, non-invasive method to track EHV shedding in zebras and to establish an efficient protocol for genotyping individual zebras from environmental DNA (eDNA)...
September 12, 2017: Zoo Biology
https://www.readbyqxmd.com/read/28901013/how-active-are-young-cardiac-device-patients-objective-assessment-of-activity-in-children-with-cardiac-devices
#13
Caridad M de la Uz, Ashley E Burch, Bruce Gunderson, Jodi Koehler, Samuel F Sears
BACKGROUND: The daily activity of pediatric patients with implantable cardiac devices provides behavioral evidence of functional outcomes. Modern devices provide continuous accelerometer data that is sensitive to movement, but normative values have not been published for pediatric activity rates. This study provides the first normative accelerometer data on activity rates in a large sample of pediatric cardiac device patients. METHODS: Patients were between 3 and 18 years old, (N = 1,905) and implanted with a cardiac device from a single device company, and enrolled in remote monitoring...
September 12, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28899449/the-provider-perspective-investigating-the-effect-of-the-electronic-patient-reported-outcome-epro-mobile-application-and-portal-on-primary-care-provider-workflow
#14
Parminder K Hans, Carolyn Steele Gray, Ashlinder Gill, James Tiessen
Aim This qualitative study investigates how the Electronic Patient-Reported Outcome (ePRO) mobile application and portal system, designed to capture patient-reported measures to support self-management, affected primary care provider workflows. BACKGROUND: The Canadian health system is facing an ageing population that is living with chronic disease. Disruptive innovations like mobile health technologies can help to support health system transformation needed to better meet the multifaceted needs of the complex care patient...
September 13, 2017: Primary Health Care Research & Development
https://www.readbyqxmd.com/read/28892864/multi-sensor-satellite-and-in-situ-monitoring-of-phytoplankton-development-in-a-eutrophic-mesotrophic-lake
#15
Katja Dörnhöfer, Philip Klinger, Thomas Heege, Natascha Oppelt
Phytoplankton indicated by its photosynthetic pigment chlorophyll-a is an important pointer on lake ecology and a regularly monitored parameter within the European Water Framework Directive. Along with eutrophication and global warming cyanobacteria gain increasing importance concerning human health aspects. Optical remote sensing may support both the monitoring of horizontal distribution of phytoplankton and cyanobacteria at the lake surface and the reduction of spatial uncertainties associated with limited water sample analyses...
September 7, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28887294/impact-of-at-home-telemonitoring-on-health-services-expenditure-and-hospital-admissions-in-patients-with-chronic-conditions-before-and-after-control-intervention-analysis
#16
Branko Celler, Marlien Varnfield, Surya Nepal, Ross Sparks, Jane Li, Rajiv Jayasena
BACKGROUND: Telemonitoring is becoming increasingly important for the management of patients with chronic conditions, especially in countries with large distances such as Australia. However, despite large national investments in health information technology, little policy work has been undertaken in Australia in deploying telehealth in the home as a solution to the increasing demands and costs of managing chronic disease. OBJECTIVE: The objective of this trial was to evaluate the impact of introducing at-home telemonitoring to patients living with chronic conditions on health care expenditure, number of admissions to hospital, and length of stay (LOS)...
September 8, 2017: JMIR Medical Informatics
https://www.readbyqxmd.com/read/28887068/the-rationale-design-and-methods-of-a-randomized-controlled-trial-to-evaluate-the-effectiveness-of-collaborative-telecare-in-preserving-function-among-patients-with-late-stage-cancer-and-hematologic-conditions
#17
Andrea L Cheville, Timothy Moynihan, Jeffrey R Basford, John A Nyman, Marty L Tuma, Debra A Macken, Terry Therneau, Daniel Satelel, Kurt Kroenke
Disablement affects over 40% of patients with advanced stage cancer, devastates their quality of life (QoL), and increases their healthcare costs. Proactively treating the causes of disablement; physical impairments, pain, and immobility, can prolong functional independence, improve QoL and, potentially, reduce utilization. However rehabilitation service delivery models are reactive in nature and focus on catastrophic rather than incipient disability. A validated collaborative approach, the Three Component Model (TCM), optimizes important clinical outcomes and may provide an ideal framework to overcome barriers to proactively integrating rehabilitation into cancer care...
September 5, 2017: Contemporary Clinical Trials
https://www.readbyqxmd.com/read/28887061/advances-in-audio-based-systems-to-monitor-patient-adherence-and-inhaler-drug-delivery
#18
REVIEW
Terence E Taylor, Yaniv Zigel, Céline De Looze, Imran Sulaiman, Richard W Costello, Richard B Reilly
Hundreds of millions of people suffer from asthma and chronic obstructive pulmonary disease (COPD) worldwide. Current medications to control these chronic respiratory diseases can be administered using inhaler devices, such as the pressurized metered dose inhaler (pMDI) and dry powder inhaler (DPI). Providing that they are used as prescribed, inhalers can improve patients' clinical outcomes and quality of life. Poor patient inhaler adherence (both time of use and user technique) is, however, a major clinical concern and is associated with poor disease control, increased hospital admissions and increased mortality rates, particularly in low-middle income countries...
September 5, 2017: Chest
https://www.readbyqxmd.com/read/28885556/combining-multi-source-remotely-sensed-data-and-a-process-based-model-for-forest-aboveground-biomass-updating
#19
Xiaoman Lu, Guang Zheng, Colton Miller, Ernesto Alvarado
Monitoring and understanding the spatio-temporal variations of forest aboveground biomass (AGB) is a key basis to quantitatively assess the carbon sequestration capacity of a forest ecosystem. To map and update forest AGB in the Greater Khingan Mountains (GKM) of China, this work proposes a physical-based approach. Based on the baseline forest AGB from Landsat Enhanced Thematic Mapper Plus (ETM+) images in 2008, we dynamically updated the annual forest AGB from 2009 to 2012 by adding the annual AGB increment (ABI) obtained from the simulated daily and annual net primary productivity (NPP) using the Boreal Ecosystem Productivity Simulator (BEPS) model...
September 8, 2017: Sensors
https://www.readbyqxmd.com/read/28884302/monitoring-vegetation-cover-in-chongqing-between-2001-and-2010-using-remote-sensing-data
#20
Qiang Xiao, Jianping Tao, Yang Xiao, Feng Qian
In this study, we applied asymmetric Gaussian function fitting to reconstruct a high-quality MODIS normalized difference vegetation index (NDVI) time series dataset. Following this, we retrieved vegetation cover data from the Chongqing area between 2001 and 2010 using this dataset, applying a dimidiate pixel method. We then used several analytical indices to analyze spatial and temporal changes and trends related to these changes. We determined that a reconstruction of the MODIS NDVI dataset using asymmetric Gaussian fitting in conjunction with a data quality weight coefficient improved data quality and created a foundation for accurate estimations of vegetation cover...
September 8, 2017: Environmental Monitoring and Assessment
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