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https://www.readbyqxmd.com/read/28647609/a-machine-learning-approach-for-automated-wide-range-frequency-tagging-analysis-in-embedded-neuromonitoring-systems
#1
Fabio Montagna, Marco Buiatti, Simone Benatti, Davide Rossi, Elisabetta Farella, Luca Benini
EEG is a standard non-invasive technique used in neural disease diagnostics and neurosciences. Frequency-tagging is an increasingly popular experimental paradigm that efficiently tests brain function by measuring EEG responses to periodic stimulation. Recently, frequency-tagging paradigms have proven successful with low stimulation frequencies (0.5 - 6 Hz), but the EEG signal is intrinsically noisy in this frequency range, requiring heavy signal processing and significant human intervention for response estimation...
June 21, 2017: Methods: a Companion to Methods in Enzymology
https://www.readbyqxmd.com/read/28644620/nanofibrous-smart-fabrics-from-twisted-yarns-of-electrospun-piezo-polymer
#2
Enlong Yang, Zhe Xu, Lucas Chur, Ali Behroozfar, Mahmoud Baniasadi, Salvador Moreno, Jiacheng Huang, Jules Gilligan, Majid Minary-Jolandan
Smart textiles are envisioned to make a paradigm shift in wearable technologies to directly impart functionality into the fibers rather than integrating sensors and electronics onto conformal substrates or skin in wearable devices. Among smart materials, piezoelectric fabrics have not been widely reported, yet. Piezoelectric smart fabrics can be used for mechanical energy harvesting, for thermal energy harvesting through the pyroelectric effect, for ferroelectric applications, as pressure and force sensors, for motion detection, and for ultrasonic sensing...
June 23, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28644493/photoelectrochemical-devices-for-solar-water-splitting-materials-and-challenges
#3
Chaoran Jiang, Savio J A Moniz, Aiqin Wang, Tao Zhang, Junwang Tang
It is widely accepted within the community that to achieve a sustainable society with an energy mix primarily based on solar energy we need an efficient strategy to convert and store sunlight into chemical fuels. A photoelectrochemical (PEC) device would therefore play a key role in offering the possibility of carbon-neutral solar fuel production through artificial photosynthesis. The past five years have seen a surge in the development of promising semiconductor materials. In addition, low-cost earth-abundant co-catalysts are ubiquitous in their employment in water splitting cells due to the sluggish kinetics of the oxygen evolution reaction (OER)...
June 23, 2017: Chemical Society Reviews
https://www.readbyqxmd.com/read/28643930/moving-towards-precision-orthodontics-an-evolving-paradigm-shift-in-the-planning-and-delivery-of-customized-orthodontic-therapy
#4
REVIEW
A H Jheon, S Oberoi, R C Solem, S Kapila
Advances in precision medicine portend similar progress in orthodontics and will be increasingly harnessed to achieve customized treatment approaches and enhance treatment efficiencies. Our goal is to provide a background on emerging advances in computer technologies and biomedicine and highlight their current and likely future applications to precision orthodontics. A review of orthodontically relevant technologies and advances in pertinent biological research was undertaken. Innovations in computer hardware and software, and 3D imaging technologies offer the ability for customized treatment and biomechanical planning that will be more fully realized within the next few decades...
June 2017: Orthodontics & Craniofacial Research
https://www.readbyqxmd.com/read/28640594/biomedical-diagnostics-enabled-by-integrated-organic-and-printed-electronics
#5
Termeh Ahmadraji, Laura Gonzalez-Macia, Tapio Ritvonen, Andreas Willert, Saara Tuurala, Satu Ylimaula, David Donaghy, Mika Suhonen, Dave Smart, Vitaly Efremov, Aoife Morrin, Reinhard R Baumann, Munira Raja, Antti Kemppainen, Anthony J Killard
Organic and printed electronics integration has the potential to revolutionise many technologies, including biomedical diag-nostics. This work demonstrates the successful integration of multiple printed electronic functionalities into a single device capable of the measurement of hydrogen peroxide, and total cholesterol. The single-use device employed printed electrochemical sen-sors for hydrogen peroxide electroreduction integrated with printed electrochromic display and battery. The system was driven by a conventional electronic circuit designed to illustrate the complete integration of silicon ICs via pick and place, or using organic electronic circuits...
June 22, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28640386/photoresponsive-smart-coloration-electrochromic-supercapacitor
#6
Tae Gwang Yun, Donghyuk Kim, Yong Ho Kim, Minkyu Park, Seungmin Hyun, Seung Min Han
Electrochromic devices have been widely adopted in energy saving applications by taking advantage of the electrode coloration, but it is critical to develop a new electrochromic device that can undergo smart coloration and can have a wide spectrum in transmittance in response to input light intensity while also functioning as a rechargeable energy storage system. In this study, a photoresponsive electrochromic supercapacitor based on cellulose-nanofiber/Ag-nanowire/reduced-graphene-oxide/WO3 -composite electrode that is capable of undergoing "smart" reversible coloration while simultaneously functioning as a reliable energy-storage device is developed...
June 22, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28638780/materials-design-and-system-construction-for-conventional-and-new-concept-supercapacitors
#7
REVIEW
Zhong Wu, Lin Li, Jun-Min Yan, Xin-Bo Zhang
With the development of renewable energy and electrified transportation, electrochemical energy storage will be more urgent in the future. Supercapacitors have received extensive attention due to their high power density, fast charge and discharge rates, and long-term cycling stability. During past five years, supercapacitors have been boomed benefited from the development of nanostructured materials synthesis and the promoted innovation of devices construction. In this review, we have summarized the current state-of-the-art development on the fabrication of high-performance supercapacitors...
June 2017: Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
https://www.readbyqxmd.com/read/28636028/supramolecular-functional-assemblies-dynamic-membrane-transporters-and-peptide-nanotubular-composites
#8
Alberto Fuertes, Marisa Juanes, Juan R Granja, Javier Montenegro
The fabrication of functional molecular devices constitutes one of the most important current challenges for chemical sciences. The complex processes accomplished by living systems continuously demand the assistance of non-covalent interactions between molecular building blocks. Additionally, these building blocks (proteins, membranes, nucleotides) are also constituted by self-assembled structures. Therefore, supramolecular chemistry is the discipline required to understand the properties of the minimal self-assembled building blocks of living systems and to develop new functional smart materials...
June 21, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28633591/approaches-in-topical-ocular-drug-delivery-and-developments-in-the-use-of-contact-lenses-as-drug-delivery-devices
#9
Prina Mehta, Rita Haj-Ahmad, Ali Al-Kinani, Muhammad Sohail Arshad, Ming-Wei Chang, Raid G Alany, Zeeshan Ahmad
Drug-delivery approaches have diversified over the last two decades with the emergence of nanotechnologies, smart polymeric systems and multimodal functionalities. The intended target for specific treatment of disease is the key defining developing parameter. One such area which has undergone significant advancements relates to ocular delivery. This has been expedited by the development of material advancement, mechanistic concepts and through the deployment of advanced process technologies. This review will focus on the developments within lens-based drug delivery while touching on conventional and current methods of topical ocular drug delivery...
July 2017: Therapeutic Delivery
https://www.readbyqxmd.com/read/28632018/exploring-the-learnability-and-usability-of-a-near-field-communication-based-application-for-semantic-enrichment-in-children-with-language-disorders
#10
Maria Luisa Lorusso, Emilia Biffi, Massimo Molteni, Gianluigi Reni
Recently, a few software applications (apps) have been developed to enhance vocabulary and conceptual networks to address the needs of children with language impairments (LI), but there is no evidence about their impact and their usability in therapy contexts. Here, we try to fill this gap presenting a system aimed at improving the semantic competence and the structural knowledge of children with LI. The goal of the study is to evaluate learnability, usability, user satisfaction and quality of the interaction between the system and the children...
February 13, 2017: Assistive Technology: the Official Journal of RESNA
https://www.readbyqxmd.com/read/28630922/flexible-ferroelectric-element-based-on-van-der-waals-heteroepitaxy
#11
Jie Jiang, Yugandhar Bitla, Chun-Wei Huang, Thi Hien Do, Heng-Jui Liu, Ying-Hui Hsieh, Chun-Hao Ma, Chi-Yuan Jang, Yu-Hong Lai, Po-Wen Chiu, Wen-Wei Wu, Yi-Chun Chen, Yi-Chun Zhou, Ying-Hao Chu
We present a promising technology for nonvolatile flexible electronic devices: A direct fabrication of epitaxial lead zirconium titanate (PZT) on flexible mica substrate via van der Waals epitaxy. These single-crystalline flexible ferroelectric PZT films not only retain their performance, reliability, and thermal stability comparable to those on rigid counterparts in tests of nonvolatile memory elements but also exhibit remarkable mechanical properties with robust operation in bent states (bending radii down to 2...
June 2017: Science Advances
https://www.readbyqxmd.com/read/28627227/smarter-sole-survival
#12
Bijan Najafi, Eyal Ron, Ana Enriquez, Ivan Marin, Javad Razjouyan, David G Armstrong
OBJECTIVE: This study examined adherence to alert-based cues for plantar pressure offloading in patients with diabetic foot disease. METHOD AND DESIGN: Participants (n = 17) with in diabetic foot remission (history of neuropathic ulceration) were instructed to wear a smart insole system (the SurroSense Rx, Orpyx Medical Technologies Inc, Calgary, Canada) over a three-month period. This device is designed to cue offloading to manage unprotected sustained plantar pressures in an effort to prevent foot ulceration...
January 1, 2017: Journal of Diabetes Science and Technology
https://www.readbyqxmd.com/read/28627224/real-time-smart-textile-based-system-to-monitor-pressure-offloading-of-diabetic-foot-ulcers
#13
Andrea Raviglione, Roberto Reif, Maurizio Macagno, Davide Vigano, Justin Schram, David Armstrong
BACKGROUND: The lifetime risk of developing a diabetic foot ulcer (DFU) is at least 25%. A DFU carries a 50% risk for infection and at least 20% of those receive some form of amputation. The most significant parameter that prevents or delays ulcer healing is high plantar pressure. To improve the patient's healing process, the DFU's plantar pressure should remain cumulatively low. Therefore, a tool that continuously measures the DFU loading, and provides real-time feedback can improve the healing outcome...
February 1, 2017: Journal of Diabetes Science and Technology
https://www.readbyqxmd.com/read/28625062/bioinspired-hand-operating-smart-wetting-systems-using-smooth-liquid-coatings
#14
Mizuki Tenjimbayashi, Takeshi Matsubayashi, Takeo Moriya, Seimei Shiratori
Manually controllable 'hand-operating' smart systems have been developed in many fields, including smart wetting materials, electronic devices, molecular machines, and drug delivery systems. Because complex morphological or chemical control are generally required, versatile strategies for constructing the system are technologically important. Inspired by the natural phenomenon of raindrops rarely bouncing and usually spreading on a puddle, we introduce a droplet-impact-triggering smart-wetting system using "non-smart" smooth liquid coating materials...
June 19, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28620212/shaping-electromagnetic-waves-using-software-automatically-designed-metasurfaces
#15
Qian Zhang, Xiang Wan, Shuo Liu, Jia Yuan Yin, Lei Zhang, Tie Jun Cui
We present a fully digital procedure of designing reflective coding metasurfaces to shape reflected electromagnetic waves. The design procedure is completely automatic, controlled by a personal computer. In details, the macro coding units of metasurface are automatically divided into several types (e.g. two types for 1-bit coding, four types for 2-bit coding, etc.), and each type of the macro coding units is formed by discretely random arrangement of micro coding units. By combining an optimization algorithm and commercial electromagnetic software, the digital patterns of the macro coding units are optimized to possess constant phase difference for the reflected waves...
June 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28617617/accuracy-and-user-performance-evaluation-of-a-new-wireless-enabled-blood-glucose-monitoring-system-that-links-to-a-smart-mobile-device
#16
Timothy S Bailey, Jane F Wallace, Scott Pardo, Mary Ellen Warchal-Windham, Bern Harrison, Robert Morin, Mark Christiansen
BACKGROUND: The new Contour(®)Plus ONE blood glucose monitoring system (BGMS) features an easy-to-use, wireless-enabled blood glucose meter that links to a smart mobile device via Bluetooth(®) connectivity and can sync with the Contour(™) Diabetes app on a smartphone or tablet. METHODS: The accuracy of the new BGMS was assessed in 2 studies according to ISO 15197:2013 criteria. In Study 1 (laboratory study), fingertip capillary blood samples from 100 subjects were tested in duplicate using 3 test strip lots...
February 1, 2017: Journal of Diabetes Science and Technology
https://www.readbyqxmd.com/read/28616932/analysis-of-accuracy-and-user-performance-evaluation-of-a-new-wireless-enabled-blood-glucose-monitoring-system-that-links-to-a-smart-mobile-device
#17
Malte Rutschmann
In the study published in Journal of Diabetes, Science and Technology, Timothy S. Bailey and coauthors evaluated system accuracy and user performance of a new, wireless-enabled blood glucose monitoring system, the Contour Plus ONE blood glucose monitoring system. The authors declare that the study protocol was performed according to ISO 15197:2013 guidelines, in particular to clauses 6.3 and 8. Results show a high level of accuracy of the product in a laboratory setting as well as in the hands of lay users...
February 1, 2017: Journal of Diabetes Science and Technology
https://www.readbyqxmd.com/read/28615709/programmable-deployment-of-tensegrity-structures-by-stimulus-responsive-polymers
#18
Ke Liu, Jiangtao Wu, Glaucio H Paulino, H Jerry Qi
Tensegrity structures with detached struts are naturally suitable for deployable applications, both in terrestrial and outer-space structures, as well as morphing devices. Composed of discontinuous struts and continuous cables, such systems are only structurally stable when self-stress is induced; otherwise, they lose the original geometrical configuration (while keeping the topology) and thus can be tightly packed. We exploit this feature by using stimulus responsive polymers to introduce a paradigm for creating actively deployable 3D structures with complex shapes...
June 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28614104/is-there-an-app-for-that-mobile-phones-and-secondary-prevention-of-cardiovascular-disease
#19
Lis Neubeck, Susie Cartledge, Susan Dawkes, Robyn Gallagher
PURPOSE OF REVIEW: Advances in technology coupled with increased penetration of mobile phones and smart devices are rapidly changing healthcare delivery. Mobile phone applications ('apps'), text messages, and Internet platforms used alone or in combination are now providing interventions targeting people with multiple cardiovascular risk factors. The present article will review the emerging evidence regarding apps and discuss their potential role in providing secondary prevention interventions via mobile phones...
June 13, 2017: Current Opinion in Cardiology
https://www.readbyqxmd.com/read/28612909/implantation-of-stents-for-postsurgical-recoarctation-of-the-aorta-in-adolescents-and-adults
#20
Sylwia Sulik-Gajda, Roland Fiszer, Jacek Białkowski, Beata Chodór, Szymon Pawlak, Małgorzata Szkutnik
BACKGROUND: Results of stent implantation (SI) of postsurgical recoarctation of the aorta (ReCoA) are not frequently published. AIM: This study sought to retrospectively evaluate results of SI in ReCoA in older children and adults. METHODS: Twenty-eight SI were performed on 26 ReCoA patients with a median age of 23(10-65) years. Dependent upon availability, the following stents were applied -Palmaz, Cheatham Platinum (CP), Andrastents XL/XXL(AS), Covered CP (CVCP) stents and selfexpanding stents (Smart)...
June 14, 2017: Kardiologia Polska
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