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https://www.readbyqxmd.com/read/28088000/efficient-degradation-of-butylparaben-by-gamma-radiolysis
#1
Jhimli Paul Guin, Y K Bhardwaj, Lalit Varshney
Gamma radiolysis and ozonolysis are two competitive advanced oxidation processes for degradation of organic pollutants present in the ground water. In this paper, the gamma radiolytic degradation of an emerging organic pollutant Butylparaben (BP) in aqueous solution has been investigated for the first time at different absorbed doses. The effect of the absorbed dose rate in the degradation and mineralization of BP has been investigated. About 65% mineralization of BP was observed at absorbed dose of 70kGy and dose rate of 0...
December 24, 2016: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/28086866/perceptions-and-utilization-of-generic-medicines-in-guatemala-a-mixed-methods-study-with-physicians-and-pharmacy-staff
#2
David Flood, Irène Mathieu, Anita Chary, Pablo García, Peter Rohloff
BACKGROUND: Access to low-cost essential generic medicines is a critical health policy goal in low-and-middle income countries (LMICs). Guatemala is an LMIC where there is both limited availability and affordability of these medications. However, attitudes of physicians and pharmacy staff regarding low-cost generics, especially generics for non-communicable diseases (NCDs), have not been fully explored in Guatemala. METHODS: Semi-structured interviews with 30 pharmacy staff and 12 physicians in several highland towns in Guatemala were conducted...
January 13, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28086764/an-audit-of-the-quality-of-online-immunisation-information-available-to-australian-parents
#3
K E Wiley, M Steffens, N Berry, J Leask
BACKGROUND: The Internet is increasingly a source of health information for parents, who use the Internet alongside health care providers for immunisation information. Concerns have been raised about the reliability of online immunisation information, however to date there has been no audit of the quality or quantity of what is available to Australian parents. The objective of this study was to address this gap by simulating a general online search for immunisation information, and assessing the quality and quantity of the web sites returned by the search...
January 13, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28081273/assessing-the-impact-of-retreat-mechanisms-in-a-simple-antarctic-ice-sheet-model-using-bayesian-calibration
#4
Kelsey L Ruckert, Gary Shaffer, David Pollard, Yawen Guan, Tony E Wong, Chris E Forest, Klaus Keller
The response of the Antarctic ice sheet (AIS) to changing climate forcings is an important driver of sea-level changes. Anthropogenic climate change may drive a sizeable AIS tipping point response with subsequent increases in coastal flooding risks. Many studies analyzing flood risks use simple models to project the future responses of AIS and its sea-level contributions. These analyses have provided important new insights, but they are often silent on the effects of potentially important processes such as Marine Ice Sheet Instability (MISI) or Marine Ice Cliff Instability (MICI)...
2017: PloS One
https://www.readbyqxmd.com/read/28081076/spatially-resolved-individual-particle-spectroscopy-using-photothermal-modulation-of-mie-scattering
#5
R M Sullenberger, S M Redmond, D Crompton, A M Stolyarov, W D Herzog
We report a photothermal modulation of Mie scattering (PMMS) method that enables concurrent spatial and spectral discrimination of individual micron-sized particles. This approach provides a direct measurement of the "fingerprint" infrared absorption spectrum with the spatial resolution of visible light. Trace quantities (tens of picograms) of material were deposited onto an infrared-transparent substrate and simultaneously illuminated by a wavelength-tunable intensity-modulated quantum cascade pump laser and a continuous-wave 532 nm probe laser...
January 15, 2017: Optics Letters
https://www.readbyqxmd.com/read/28080147/bringing-more-transparency-to-artificial-intelligence
#6
Andrea Gaggioli
No abstract text is available yet for this article.
January 2017: Cyberpsychology, Behavior and Social Networking
https://www.readbyqxmd.com/read/28080077/dogs-canis-familiaris-attention-to-human-perception-influence-of-breed-groups-and-life-experiences
#7
Marianne T E Heberlein, Dennis C Turner, Marta B Manser
Attending to the perception of others may help individuals gaining information from conspecifics, or help in competitive situations. Dogs (Canis familiaris) are attentive to humans' signals and their attentional state. We investigated whether dogs of different breed groups differ in their ability to pay attention to human's perception, first according to the genetic relatedness between dog breeds, and second according to working style differences. Once dogs had learned to leave forbidden food on the floor, they were confronted with 2 food items to which only they had unrestricted visual access...
January 12, 2017: Journal of Comparative Psychology
https://www.readbyqxmd.com/read/28080027/asymmetric-pentagonal-metal-meshes-for-flexible-transparent-electrodes-and-heaters
#8
Daniel Lordan, Micheal Burke, Mary Manning, Alfonso Martin, Andreas Amann, Dan O' Connell, Richard Murphy, Colin Lyons, Aidan J Quinn
Metal meshes have emerged as an important class of flexible transparent electrodes. We report on the characteristics of a new class of asymmetric meshes, tiled using a recently-discovered family of pentagons. Micron-scale meshes were fabricated on flexible polyethylene terephthalate substrates via optical lithography, metal evaporation (Ti 10 nm, Pt 50 nm) and lift-off. Three different designs were assessed, each with the same tessellation pattern and linewidth (5 µm), but with different sizes of the fundamental pentagonal unit...
January 12, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28079878/a-complete-workflow-for-high-resolution-spectral-stitching-nanoelectrospray-direct-infusion-mass-spectrometry-based-metabolomics-and-lipidomics
#9
Andrew D Southam, Ralf J M Weber, Jasper Engel, Martin R Jones, Mark R Viant
Metabolomic and lipidomic studies measure and discover metabolic and lipid profiles in biological samples, enabling a better understanding of the metabolism of specific biological phenotypes. Accurate biological interpretations require high analytical reproducibility and sensitivity, and standardized and transparent data processing. Here we describe a complete workflow for nanoelectrospray ionization (nESI) direct-infusion mass spectrometry (DIMS) metabolomics and lipidomics. After metabolite and lipid extraction from tissues and biofluids, samples are directly infused into a high-resolution mass spectrometer (e...
February 2016: Nature Protocols
https://www.readbyqxmd.com/read/28079359/pristine-graphene-electrode-in-hydrogen-evolution-reaction
#10
Aozhen Xie, Ningning Xuan, Kun Ba, Zhengzong Sun
Graphene, the sp2 carbonaceous two dimensional (2D) material, is gaining more attentions in recent electrochemical studies. However, this atomic thick electrode usually suffers with surface contamination and poor electrochemical endurance. To overcome the drawbacks, we developed a PMMA-assisted, flipped transfer method to fabricate the graphene electrode with pristine surface and prolonged lifetime in hydrogen evolution reaction (HER). The HER performances of the single-layer graphene (SLG) were evaluated on various insulating and conductive substrates, including SiO2, polymers, SLG, highly oriented pyrolytic graphite (HOPG), and copper...
January 12, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28078077/a-novel-method-for-the-quantification-of-fatty-infiltration-in-skeletal-muscle
#11
Nicole K Biltz, Gretchen A Meyer
BACKGROUND: Fatty infiltration of the skeletal muscle is a common but poorly understood feature of many myopathies. It is best described in human muscle, where non-invasive imaging techniques and representative histology have been optimized to view and quantify infiltrating fat. However, human studies are limited in their ability to identify cellular and molecular mechanisms regulating fatty infiltration, a likely prerequisite to developing targeted interventions. As mechanistic investigations move to small animals, studies may benefit from new or adapted imaging tools optimized for high resolution and whole muscle quantification...
2017: Skeletal Muscle
https://www.readbyqxmd.com/read/28076883/in-vivo-feasibility-test-using-transparent-carbon-nanotube-coated-polydimethylsiloxane-sheet-at-brain-tissue-and-sciatic-nerve
#12
Caifeng Wang, Sangjin Oh, Hyun Ah Lee, Jieun Kang, Ki-Jae Jeong, Seon Woo Kang, Dae Youn Hwang, Jaebeom Lee
Carbon nanotubes (CNTs), with their unique and outstanding properties, such as strong mechanical strength and high electrical conductivity, have become very popular for the repair of tissues, particularly for those requiring electrical stimuli. Polydimethylsiloxane (PDMS)-based elastomers have been used in a wide range of biomedical applications because of their optical transparency, physiological inertness, blood compatibility, non-toxicity, and gas permeability. In present study, most of artificial nerve guidance conduits (ANGCs) are not transparent...
January 11, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28076623/low-cost-simulator-for-heart-surgery-training
#13
Roberto Rocha E Silva, Artur Lourenção, Maxim Goncharov, Fabio B Jatene
Objective: Introduce the low-cost and easy to purchase simulator without biological material so that any institution may promote extensive cardiovascular surgery training both in a hospital setting and at home without large budgets. Methods: A transparent plastic box is placed in a wooden frame, which is held by the edges using elastic bands, with the bottom turned upwards, where an oval opening is made, "simulating" a thoracotomy. For basic exercises in the aorta, the model presented by our service in the 2015 Brazilian Congress of Cardiovascular Surgery: a silicone ice tray, where one can train to make aortic purse-string suture, aortotomy, aortorrhaphy and proximal and distal anastomoses...
November 2016: Brazilian Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/28076264/researchers-experience-with-clinical-data-sharing
#14
Geoffrey A Mospan, Kurt A Wargo
The topic of transparency in industry-sponsored clinical trials has gathered the attention of researchers in medicine. Patient-level data from recently completed clinical trials is now available for investigators to reanalyze or perform new analyses. In this Special Communication, the authors discuss their experience using this type of research and provide recommendations for success.
November 2016: Journal of the American Board of Family Medicine: JABFM
https://www.readbyqxmd.com/read/28075516/quantifying-severe-urinary-complications-after-radical-prostatectomy-the-development-and-validation-of-a-surgical-performance-indicator-using-hospital-administrative-data
#15
A Sujenthiran, S C Charman, M Parry, J Nossiter, A Aggarwal, P Dasgupta, H Payne, N W Clarke, P Cathcart, J van der Meulen
OBJECTIVES: To develop and validate a surgical performance indicator based on severe urinary complications that require an intervention within two years after radical prostatectomy (RP) identified in hospital administrative data. PATIENTS AND METHODS: Men who underwent RP between 2008 and 2012 in England were identified using hospital administrative data. A transparent coding-framework based on procedure codes was developed to identify severe urinary complications which were grouped into "stricture", "incontinence" and "other"...
January 11, 2017: BJU International
https://www.readbyqxmd.com/read/28075362/transparency-of-mandatory-information-disclosure-and-concerns-of-health-services-providers-and-consumers
#16
Yu-Hua Yan, Chih-Ming Kung, Shih-Chieh Fang, Yi Chen
BACKGROUND: This study analyzed differences between transparency of information disclosure and related demands from the health service consumer's perspective. It also compared how health service providers and consumers are associated by different levels of mandatory information disclosure. METHODS: We obtained our research data using a questionnaire survey (health services providers, n = 201; health service consumers, n = 384). RESULTS: Health service consumers do not have major concerns regarding mandatory information disclosure...
January 9, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28075347/sdtcp-towards-datacenter-tcp-congestion-control-with-sdn-for-iot-applications
#17
Yifei Lu, Zhen Ling, Shuhong Zhu, Ling Tang
The Internet of Things (IoT) has gained popularity in recent years. Today's IoT applications are now increasingly deployed in cloud platforms to perform Big Data analytics. In cloud data center networks (DCN), TCP incast usually happens when multiple senders simultaneously communicate with a single receiver. However, when TCP incast happens, DCN may suffer from both throughput collapse for TCP burst flows and temporary starvation for TCP background flows. In this paper, we propose a software defined network (SDN)-based TCP congestion control mechanism, referred to as SDTCP, to leverage the features, e...
January 8, 2017: Sensors
https://www.readbyqxmd.com/read/28075330/building-an-open-source-simulation-platform-of-acoustic-radiation-force-based-breast-elastography
#18
Yu Wang, Bo Peng, Jingfeng Jiang
Ultrasound-based elastography techniques including quasi-static strain elastography (SE), acoustic radiation force Impulse (ARFI) imaging, point shear wave elastography (pSWE) and supersonic shear imaging (SSI) have been used to differentiate breast tumors. The objective of this study is to extend a previously published virtual simulation platform of SE toward acoustic radiation force-based breast elastography. The proposed platform inherited four key components from the previously published virtual SE platform: an ultrasound simulator (Field II), a mesh generator (Tetgen), a finite element (FE) solver (FEBio) and a visualization and data processing package (VTK)...
January 11, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28075033/3d-printing-of-transparent-and-conductive-heterogeneous-hydrogel-elastomer-systems
#19
Kevin Tian, Jinhye Bae, Shannon E Bakarich, Canhui Yang, Reece D Gately, Geoffrey M Spinks, Marc In Het Panhuis, Zhigang Suo, Joost J Vlassak
A hydrogel-dielectric elastomer system, polyacrylamide and poly(dimethylsiloxane) (PDMS), is adapted for extrusion printing for integrated device fabrication. A lithium-chloride-containing hydrogel printing ink is developed and printed onto treated PDMS with no visible signs of delamination and geometrically scaling resistance under moderate uniaxial tension and fatigue. A variety of designs are demonstrated, including a resistive strain gauge and an ionic cable.
January 11, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28073811/exploratory-trials-in-mental-health-anything-to-learn-from-other-disciplines
#20
Sven Trelle
OBJECTIVE: Confirmatory randomised controlled trials require solid justifications, especially with regard to whether the experimental intervention is promising. Such evidence is generated in exploratory trials. However, empirical evidence shows that the quality of such trials is still suboptimal. More generally, the development process of healthcare interventions and especially of drugs, remains inefficient. Over the past 10-20 years, a vast amount of methodological work has been published about exploratory trials...
January 10, 2017: Evidence-based Mental Health
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