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https://www.readbyqxmd.com/read/28212317/an-auction-based-spectrum-leasing-mechanism-for-mobile-macro-femtocell-networks-of-iot
#1
Xin Chen, Lei Xing, Tie Qiu, Zhuo Li
The Internet of Things (IoT) is a vision of the upcoming society. It can provide pervasive communication between two or more entities using 4G-LTE (Long Term Evolution) communication technology. In 4G-LTE networks, there are two important problems: helping manage the spectrum demands of IoT devices and achieving much more revenue with the limited resource. This paper proposes a pricing framework to investigate the spectrum leasing in mobile heterogeneous networks with single macrocell and multiple femtocells...
February 16, 2017: Sensors
https://www.readbyqxmd.com/read/28210974/mobile-health-mhealth-technology-for-the-management-of-hypertension-and-hyperlipidemia-slow-start-but-loads-of-potential
#2
REVIEW
Hasan Rehman, Ayeesha K Kamal, Pamela B Morris, Saleem Sayani, Anwar T Merchant, Salim S Virani
PURPOSE OF REVIEW: Hypertension and hyperlipidemia represent two major risk factors for atherosclerotic cardiovascular disease. Mobile health or mHealth is defined as the use of mobile phone and wireless technologies to support the achievement of health objectives. Management of hypertension, and to some extent hyperlipidemia, has often employed mHealth interventions given lower cost and greater patient engagement compared to traditional methods. These interventions include the use of text messaging, wireless devices, and mobile phone applications...
March 2017: Current Atherosclerosis Reports
https://www.readbyqxmd.com/read/28210654/postoperative-rehabilitation-after-rotator-cuff-repair-a-web-based-survey-of-aana-and-aossm-members
#3
Scott Mollison, Jason J Shin, Alexander Glogau, R Cole Beavis
BACKGROUND: Postoperative rehabilitation after arthroscopic rotator cuff repair (ARCR) remains controversial and suffers from limited high-quality evidence. Therefore, appropriate use criteria must partially depend on expert opinion. HYPOTHESIS/PURPOSE: The purpose of the study was to determine and report on the standard and modified rehabilitation protocols after ARCR used by member orthopaedic surgeons of the American Orthopaedic Society for Sports Medicine (AOSSM) and the Arthroscopy Association of North America (AANA)...
January 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28208839/interventions-for-preventing-childhood-obesity-with-smartphones-and-wearable-device-a-protocol-for-a-non-randomized-controlled-trial
#4
Hye Jung Yang, Jae-Heon Kang, Ok Hyun Kim, Mona Choi, Myungju Oh, Jihyun Nam, Eunju Sung
BACKGROUND: Childhood obesity is a critical health issue, both currently and for the foreseeable future. To prevent obesity, behavior changes are essential. Smartphones can be a good tool, as the number of child smartphone users is rapidly increasing. We have developed a mobile platform system named "HAPPY ME," which is a smartphone application coupled with a wearable device, designed to improve healthy behaviors to prevent childhood obesity. This study aimed to evaluate the effectiveness of obesity prevention among children 10-12 years of age using HAPPY ME...
February 13, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28208760/mdaral-a-multi-radio-version-for-the-daral-routing-algorithm
#5
Francisco José Estévez, José María Castillo-Secilla, Jesús González, Joaquín Olivares, Peter Glösekötter
Smart Cities are called to change the daily life of human beings. This concept permits improving the efficiency of our cities in several areas such as the use of water, energy consumption, waste treatment, and mobility both for people as well as vehicles throughout the city. This represents an interconnected scenario in which thousands of embedded devices need to work in a collaborative way both for sensing and modifying the environment properly. Under this scenario, the majority of devices will use wireless protocols for communicating among them, representing a challenge for optimizing the use of the electromagnetic spectrum...
February 9, 2017: Sensors
https://www.readbyqxmd.com/read/28208633/compact-planar-ultrawideband-antennas-with-3-5-5-2-5-8-ghz-triple-band-notched-characteristics-for-internet-of-things-applications
#6
Jian Dong, Qianqian Li, Lianwen Deng
Ultrawideband (UWB) antennas, as core devices in high-speed wireless communication, are widely applied to mobile handsets, wireless sensor networks, and Internet of Things (IoT). A compact printed monopole antenna for UWB applications with triple band-notched characteristics is proposed in this paper. The antenna has a very compact size of 10 x 16 mm2 and is composed of a square slotted radiation patch and a narrow rectangular ground plane on the back of the substrate. First, by etching a pair of inverted T-shaped slots at the bottom of the radiation patch, one notched band at 5-6 GHz for rejecting the Wireless Local Area Network (WLAN) is generated...
February 10, 2017: Sensors
https://www.readbyqxmd.com/read/28208272/ion-elevators-and-escalators-in-multilevel-structures-for-lossless-ion-manipulations
#7
Yehia M Ibrahim, Ahmed M Hamid, Jonathan T Cox, Sandilya V B Garimella, Richard D Smith
We describe two approaches based upon ion "elevator" and "escalator" components that allow moving ions to different levels in structures for lossless ion manipulations (SLIM). Guided by ion motion simulations, we designed elevator and escalator components based upon ion current measurements providing essentially lossless transmission in multilevel designs. The ion elevator design allowed ions to efficiently bridge a 4 mm gap between levels. The component was integrated in a SLIM and coupled to a QTOF mass spectrometer using an ion funnel interface to evaluate the m/z range transmitted as compared to transmission within a level (e...
February 7, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28199321/quasistatic-cavity-resonance-for-ubiquitous-wireless-power-transfer
#8
Matthew J Chabalko, Mohsen Shahmohammadi, Alanson P Sample
Wireless power delivery has the potential to seamlessly power our electrical devices as easily as data is transmitted through the air. However, existing solutions are limited to near contact distances and do not provide the geometric freedom to enable automatic and un-aided charging. We introduce quasistatic cavity resonance (QSCR), which can enable purpose-built structures, such as cabinets, rooms, and warehouses, to generate quasistatic magnetic fields that safely deliver kilowatts of power to mobile receivers contained nearly anywhere within...
2017: PloS One
https://www.readbyqxmd.com/read/28196155/subperiosteal-minimally-invasive-aesthetic-ridge-augmentation-technique-smart-a-new-standard-for-bone-reconstruction-of-the-jaws
#9
Ernesto A Lee
Traditional guided bone regeneration techniques include flap mobilization and placement of a bone graft, often with the use of space-maintaining devices and cell-occlusive membranes. This approach is associated with frequent complications that negatively affect the outcome of the augmentation and the peri-implant soft tissue esthetics. Although current tunneling techniques have focused on periodontal soft tissue applications, earlier publications described their use for horizontal augmentation of mandibular posterior edentulous ridges in full-denture patients...
March 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/28195705/top-contact-self-aligned-printing-for-high-performance-carbon-nanotube-thin-film-transistors-with-sub-micron-channel-length
#10
Xuan Cao, Fanqi Wu, Christian Lau, Yihang Liu, Qingzhou Liu, Chongwu Zhou
Semiconducting single-wall carbon nanotubes are ideal semiconductors for printed thin-film transistors due to their excellent electrical performance and intrinsic printability with solution-based deposition. However, limited by resolution and registration accuracy of current printing techniques, previously reported fully printed nanotube transistors had rather long channel lengths (>20 μm) and consequently low current-drive capabilities (<0.2 μA/μm). Here we report fully inkjet printed nanotube transistors with dramatically enhanced on-state current density of ∼4...
February 14, 2017: ACS Nano
https://www.readbyqxmd.com/read/28195492/gate-tunable-giant-stark-effect-in-few-layer-black-phosphorus
#11
Yanpeng Liu, Zhizhan Qiu, Alexandra Carvalho, Yang Bao, Hai Xu, Sherman Jun Rong Tan, Wei Liu, Antonio H Castro Neto, Kian Ping Loh, Jiong Lu
Two-dimensional black phosphorus (BP) has sparked enormous research interest due to its high carrier mobility, layer-dependent direct bandgap and outstanding in-plane anisotropic properties. BP is one of the few two-dimensional materials where it is possible to tune the bandgap over a wide energy range from the visible up to the infrared. In this article, we report the observation of a giant Stark effect in electrostatically-gated few-layer BP. Using low temperature scanning tunnelling microscopy, we observed that in few-layer BP, when electrons are injected, a monotonic reduction of the bandgap occurs...
February 14, 2017: Nano Letters
https://www.readbyqxmd.com/read/28195367/designing-strained-interface-heterostructures-for-memristive-devices
#12
Sebastian Schweiger, Reto Pfenninger, William J Bowman, Ulrich Aschauer, Jennifer L M Rupp
Ionic heterostructures are used as a strain-modulated memristive device based on the model system Gd0.1 Ce0.9 O2-δ /Er2 O3 to set and tune the property of "memristance." The modulation of interfacial strain and the interface count is used to engineer the Roff /Ron ratio and the persistence of the system. A model describing the variation of mixed ionic-electronic mobilities and defect concentrations is presented.
February 13, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28194942/hydroxyl-terminated-cuins2-based-quantum-dots-potential-cathode-interfacial-modifiers-for-efficient-inverted-polymer-solar-cells
#13
Hui Chen, Pengjie Chao, Dengbao Han, Huan Wang, Jing-Sheng Miao, Haizheng Zhong, Hong Meng, Feng He
The use of interfacial modifiers on cathode or anode layers can effectively reduce the recombination loss and thus have potential to enhance the device performance of polymer solar cells. In this work, we firstly demonstrated that hydroxyl-terminated CuInS2 based quantum dots could be potential cathode interfacial modifiers on ZnO layer for inverted polymer solar cells. By casting a thin film of CuInS2 based quantum dots onto ZnO layer, the controlled devices show obvious enhancements of open-circuit voltage, short-circuit current, and fill factor...
February 14, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28194082/internet-use-at-workplaces-and-its-effects-on-working-style-in-indian-context-an-exploration
#14
Apoorva Shrivastava, Manoj K Sharma, P Marimuthu
BACKGROUND: Internet use has revolutionized the pattern of working style at the workplace. It led to an increased use for nonprofessional activities at the workplace. It has been shown to affect productivity at the workplace. There is a dearth of literature from the Indian context in this area. AIM: This study was conducted to explore the pattern of Internet use at the workplace and its dysfunctions. SETTING AND DESIGN: The present study was a cross-sectional prospective study...
May 2016: Indian Journal of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/28193871/optimizing-virtual-reality-for-all-users-through-gaze-contingent-and-adaptive-focus-displays
#15
Nitish Padmanaban, Robert Konrad, Tal Stramer, Emily A Cooper, Gordon Wetzstein
From the desktop to the laptop to the mobile device, personal computing platforms evolve over time. Moving forward, wearable computing is widely expected to be integral to consumer electronics and beyond. The primary interface between a wearable computer and a user is often a near-eye display. However, current generation near-eye displays suffer from multiple limitations: they are unable to provide fully natural visual cues and comfortable viewing experiences for all users. At their core, many of the issues with near-eye displays are caused by limitations in conventional optics...
February 13, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28193465/application-of-human-augmentics-a-persuasive-asthma-inhaler
#16
Brent Grossman, Steve Conner, Giselle Mosnaim, Joshua Albers, Jason Leigh, Steve Jones, Robert Kenyon
This article describes a tailored health intervention delivered on a mobile phone platform, integrating low-literacy design strategies and basic principles of behavior change, to promote increased adherence and asthma control among underserved minority adolescents. We based the intervention and design principles on theories of Human Augmentics and the Elaboration Likelihood Model. We tested the efficacy of using electronic monitoring devices that incorporate informative and persuasive elements to improve adherence to a prescribed daily medication regimen intended to reduce use of asthma rescue medications...
February 10, 2017: Journal of Biomedical Informatics
https://www.readbyqxmd.com/read/28191918/1-2-ethanedithiol-treatment-for-agin5s8-zns-quantum-dot-based-light-emitting-diodes-with-high-brightness
#17
Changyin Ji, Min Lu, Hua Wu, Xiaoyu Zhang, Xinyu Shen, Xiao Wang, Yu Zhang, Yiding Wang, William W Yu
The surface organic ligands of the quantum dots (QDs) play important roles in the performance of QD electronic devices. Here, we fabricated low toxic AgIn5S8/ZnS (AIS/ZS) QDs based light-emitting diodes (QD-LEDs), and greatly enhanced the device efficiency through surface ligand exchange treatments. The oleic acid (OA) capped QDs were replaced with a shorter ligand 1,2-ethanedithiol (EDT), which was proved by the Fourier transform infrared spectrum (FTIR) measurement. The treated QD films became more compact with higher film mobility and shorter film photoluminescence lifetime...
February 13, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28191626/intermittent-auscultation-ia-of-fetal-heart-rate-in-labour-for-fetal-well-being
#18
REVIEW
Ruth Martis, Ova Emilia, Detty S Nurdiati, Julie Brown
BACKGROUND: The goal of fetal monitoring in labour is the early detection of a hypoxic baby. There are a variety of tools and methods available for intermittent auscultation (IA) of the fetal heart rate (FHR). Low- and middle-income countries usually have only access to a Pinard/Laënnec or the use of a hand-held Doppler device. Currently, there is no robust evidence to guide clinical practice on the most effective IA tool to use, timing intervals and length of listening to the fetal heart for women during established labour...
February 13, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28191545/the-future-of-mobile-health-applications-and-devices-in-cardiovascular-health
#19
Heval Mohamed Kelli, Bradley Witbrodt, Amit Shah
Mobile health (mHealth) is the utilisation of mobile technologies in healthcare and has particular relevance in improving lifestyle behaviours which may ultimately reduce cardiovascular disease risk. Various intervention studies for example integrate self-monitoring of diet and physical activity with text messaging systems to improve intermediate outcomes. Currently the future progress of mHealth technologies in formal diagnostic and therapeutic roles is pending and includes the need to validate and standardise accelerometer and heart rate data from various devices...
January 2017: Euro Med J Innov
https://www.readbyqxmd.com/read/28190744/use-of-m-health-in-polio-eradication-and-other-immunization-activities-in-developing-countries
#20
REVIEW
Sara S Kim, Manish Patel, Alan Hinman
INTRODUCTION: Reaching the children that are chronically missed by routine immunization services has been a key pillar of success in achieving progress toward polio eradication. The rapid advancement and accessibility of mobile technology ("mHealth") in low and lower middle income countries provides an important opportunity to apply novel, innovative approaches to provide vaccine services. We sought to document the use and effectiveness of mHealth in immunization programs in low and lower middle income countries...
February 9, 2017: Vaccine
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