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https://www.readbyqxmd.com/read/28433651/the-surge-of-predatory-open-access-in-neurosciences-and-neurology
#1
Andrea Manca, Gianluca Martinez, Lucia Cugusi, Daniele Dragone, Zeevi Dvir, Franca Deriu
Predatory open access is a controversial publishing business model that exploits the open-access system by charging publication fees in the absence of transparent editorial services. The credibility of academic publishing is now seriously threatened by predatory journals, whose articles are accorded real citations and thus contaminate the genuine scientific records of legitimate journals. This is of particular concern for public health since clinical practice relies on the findings generated by scholarly articles...
April 19, 2017: Neuroscience
https://www.readbyqxmd.com/read/28433437/optimal-ultrasound-exposure-conditions-for-maximizing-c2c12-muscle-cell-proliferation-and-differentiation
#2
Alice Rita Salgarella, Andrea Cafarelli, Leonardo Ricotti, Lorenzo Capineri, Paolo Dario, Arianna Menciassi
Described here is an in vitro systematic investigation of the effects on C2C12 myoblasts of exposure to finely controlled and repeatable low-intensity pulsed ultrasound of different frequencies (500 kHz, 1 MHz, 3 MHz and 5 MHz) and different intensities (250, 500 and 1000 mW/cm(2)). An in-house stimulation system and an ultrasound-transparent cell culture well minimized reflections and attenuations, allowing precise control of ultrasound delivery. Results indicated that a 3 MHz stimulation at 1 W/cm(2) intensity maximized cell proliferation in comparison with the other exposure conditions and untreated controls...
April 19, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28432806/rapid-acceptance-testing-of-modern-linac-using-on-board-mv-and-kv-imaging-systems
#3
Sridhar Yaddanapudi, Bin Cai, Taylor Harry, Steven Dolly, Baozhou Sun, Hua Li, Keith Stinson, Camille Noel, Lakshmi Santanam, Todd Pawlicki, Sasa Mutic, S Murty Goddu
PURPOSE: The purpose of this study was to develop a novel process for using on-board MV and kV Electronic Portal Imaging Devices (EPIDs) to perform linac acceptance testing (AT) for two reasons: 1) to standardize the assessment of new equipment performance, and 2) to reduce the time to clinical use while reducing physicist workload. METHODS AND MATERIALS: In this study, Varian TrueBeam linacs equipped with amorphous silicon based EPID (aS1000) were used. The conventional set of AT tests and tolerances were used as a baseline guide...
April 22, 2017: Medical Physics
https://www.readbyqxmd.com/read/28432630/the-influence-of-restoration-measures-on-phosphorus-internal-loading-from-the-sediments-of-a-hypereutrophic-lake
#4
Katarzyna Kowalczewska-Madura, Renata Dondajewska, Ryszard Gołdyn, Stanisław Podsiadłowski
Uzarzewskie Lake was a hypereutrophic, dimictic lake characterized by low water transparency, high chlorophyll-a concentration and intense phytoplankton blooms; thus, restoration treatment was started. A chemical treatment, based on phosphorus inactivation with small doses of iron sulphate, was undertaken in 2006-2007. Nitrate-rich groundwater flowing from seepage springs was directed into the lake hypolimnion to increase redox potential since 2008. Phosphorus internal loading was reduced by more than 80% as a result of restoration treatment...
April 22, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28432051/impact-of-study-outcome-on-submission-and-acceptance-metrics-for-peer-reviewed-medical-journals-six-year-retrospective-review-of-all-completed-glaxosmithkline-human-drug-research-studies
#5
Gary Evoniuk, Bernadette Mansi, Barbara DeCastro, Jennie Sykes
Objectives To determine whether the outcome of drug studies influenced submission and/or acceptance rates for publication in peer reviewed medical journals.Design A six year retrospective review of publication status by study outcome for all human drug research studies conducted by a single industry sponsor (GlaxoSmithKline) that completed from 1 January 2009 to 30 June 2014 and were therefore due for manuscript submission (per the sponsor's policy) to peer reviewed journals within 18 months of study completion-that is, 31 December 2015...
April 21, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28431693/the-society-of-thoracic-surgeons-general-thoracic-surgery-database-2017-update-on-outcomes-and-quality
#6
Christopher W Seder, Daniel P Raymond, Cameron D Wright, Henning A Gaissert, Andrew C Chang, Sydney Clinton, Susan Becker, Felix G Fernandez, Benjamin D Kozower
The Society of Thoracic Surgeons General Thoracic Surgery Database (STS GTSD) is a voluntary effort that provides participants with risk-adjusted semiannual performance reports that allow comparison of institutional outcomes against national benchmarks. With nearly 1,000 surgeons contributing data from more than 300 centers across North America, the STS GTSD now includes almost a half million cases. In 2016, updated risk models for lung resection and esophagectomy for cancer were reported, and composite quality measures for lobectomy and esophagectomy were developed...
May 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28431546/health-care-public-reporting-utilization-user-clusters-web-trails-and-usage-barriers-on-germany-s-public-reporting-portal-weisse-liste-de
#7
Christoph Pross, Lars-Henrik Averdunk, Josip Stjepanovic, Reinhard Busse, Alexander Geissler
BACKGROUND: Quality of care public reporting provides structural, process and outcome information to facilitate hospital choice and strengthen quality competition. Yet, evidence indicates that patients rarely use this information in their decision-making, due to limited awareness of the data and complex and conflicting information. While there is enthusiasm among policy makers for public reporting, clinicians and researchers doubt its overall impact. Almost no study has analyzed how users behave on public reporting portals, which information they seek out and when they abort their search...
April 21, 2017: BMC Medical Informatics and Decision Making
https://www.readbyqxmd.com/read/28431500/foot-length-chest-and-head-circumference-measurements-in-detection-of-low-birth-weight-neonates-in-mekelle-ethiopia-a-hospital-based-cross-sectional-study
#8
Marta Yemane Hadush, Amanuel Hadgu Berhe, Araya Abrha Medhanyie
BACKGROUND: Low birth weight (Birth weight < 2500 g) is a leading cause of prenatal and neonatal deaths. The early identification of Low birth weight (LBW) neonates is essential for any comprehensive initiative to improve their chance of survival. However, a large proportion of births in developing countries take place at home and birth weight statistics are not available. Therefore, there is a need to develop simple, inexpensive and practical methods to identify low birth weight (LBW) neonates soon after birth...
April 21, 2017: BMC Pediatrics
https://www.readbyqxmd.com/read/28431258/cage-and-linear-structured-polysiloxane-epoxy-hybrids-for-coatings-surface-property-and-film-permeability
#9
Yanli Ma, Ling He, Mengjun Jia, Lingru Zhao, Yanyan Zuo, Pingan Hu
Three polysiloxane/epoxy hybrids obtained by evolving cage- or linear-structured polysiloxane into poly glycidyl methacrylate (PGMA) matrix are compared used as coatings. One is the cage-structured hybrid of P(GMA/MA-POSS) copolymer obtained by GMA and methacrylisobutyl polyhedral oligomeric silsesquioxane (MA-POSS) via free radical polymerization, the other two are PGMA/NH2-POSS and PGMA/NH2-PDMS hybrids by cage-structured aminopropyllsobutyl POSS (NH2-POSS) or linear-structured diamino terminated poly(dimethylsiloxane) (NH2-PDMS) to cure PGMA...
April 12, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28430829/effect-of-a-price-transparency-intervention-in-the-electronic-health-record-on-clinician-ordering-of-inpatient-laboratory-tests-the-price-randomized-clinical-trial
#10
Mina S Sedrak, Jennifer S Myers, Dylan S Small, Irving Nachamkin, Justin B Ziemba, Dana Murray, Gregory W Kurtzman, Jingsan Zhu, Wenli Wang, Deborah Mincarelli, Daniel Danoski, Brian P Wells, Jeffrey S Berns, Patrick J Brennan, C William Hanson, C Jessica Dine, Mitesh S Patel
Importance: Many health systems are considering increasing price transparency at the time of order entry. However, evidence of its impact on clinician ordering behavior is inconsistent and limited to single-site evaluations of shorter duration. Objective: To test the effect of displaying Medicare allowable fees for inpatient laboratory tests on clinician ordering behavior over 1 year. Design, Setting, and Participants: The Pragmatic Randomized Introduction of Cost data through the electronic health record (PRICE) trial was a randomized clinical trial comparing a 1-year intervention to a 1-year preintervention period, and adjusting for time trends and patient characteristics...
April 21, 2017: JAMA Internal Medicine
https://www.readbyqxmd.com/read/28430828/achieving-the-promise-of-price-transparency
#11
Anna D Sinaiko, Alyna T Chien
No abstract text is available yet for this article.
April 21, 2017: JAMA Internal Medicine
https://www.readbyqxmd.com/read/28430343/fabrication-and-characterization-of-indium-tin-oxide-films
#12
Shiuh-Chuan Her, Chun-Fu Chang
BACKGROUND: Transparent conducting oxide (TCO) films are of particular interest in the field of optoelectronics, due to the requirement for transparent electrodes in applications such as organic light-emitting diodes, solar cells and so on. The aim of this study was to obtain a better understanding of the effects of preparation temperature on indium tin oxide (ITO) films, to improve their performance for optoelectronic applications. METHODS: ITO films were deposited on glass substrate at different temperatures, using direct current (DC) magnetron sputtering...
April 5, 2017: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/28430324/negative-staining-of-the-vitreous-with-the-use-of-vital-dyes
#13
Cesare Mariotti, Michele Nicolai, Simone Donati, Michele Reibaldi
PURPOSE: The vitreous cortex, epiretinal membrane (ERM), and inner limiting membrane (ILM) are transparent tissues and are thus difficult to visualize. Staining these structures can increase the efficiency of a nontraumatic removal. METHODS: The surgeon performs a partial core vitrectomy and induces a posterior vitreous detachment. The vital dye is then injected into the retrohyaloid space in balanced salt solution (BSS). The dyes used are TWIN (Alchimia srl, Padova, Italy), MembraneBlue-Dual (DORC International, Zuidland, the Netherlands), and Doubledyne (Alfa Intes, Casoria, Italy)...
April 13, 2017: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/28430305/turbulence-measurements-in-an-axial-rotary-blood-pump-with-laser-doppler-velocimetry
#14
Chan Y Schüle, Klaus Affeld, Max Kossatz, Christian O Paschereit, Ulrich Kertzscher
BACKGROUND: The implantation of rotary blood pumps as ventricular assist devices (VADs) has become a viable therapy for quite a number of patients with end-stage heart failure. However, these rotary blood pumps cause adverse events that are related to blood trauma. It is currently believed that turbulence in the pump flow plays a significant role. But turbulence has not been measured to date because there is no optical access to the flow space in rotary blood pumps because of their opaque casings...
April 18, 2017: International Journal of Artificial Organs
https://www.readbyqxmd.com/read/28430258/transparency-measurement-of-thin-films-with-one-sided-optical-access-using-fluorescence-imaging
#15
A F Forughi, B Stoeber, S I Green
Optical transparency can be determined by passing light through an object and comparing the intensity of the transmitted light with the intensity of the incident light. This measurement needs optical access to both sides of the object for illumination and measurement. Optical access to both sides of the object may be restricted in some situations due to the presence of an opaque obstacle, lack of physical access, etc. A novel technique of transmittance measurement is presented that is able to determine the transparency of thin-film objects with optical access limited to just one side...
April 20, 2017: Applied Optics
https://www.readbyqxmd.com/read/28430057/how-can-you-be-transparent-about-labeling-the-living-as-dead
#16
David Rodríguez-Arias, Dominic Wilkinson, Stuart Youngner
No abstract text is available yet for this article.
May 2017: American Journal of Bioethics: AJOB
https://www.readbyqxmd.com/read/28430027/a-comparison-of-the-performance-of-2-5-to-3-5-year-old-children-without-disabilities-using-animated-and-cursor-based-scanning-in-a-contextual-scene
#17
John W McCarthy, Jamie B Boster
Although recent evidence suggests learning demands for children can be reduced by organizing augmentative and alternative communication (AAC) displays in contextual scenes, there is little evidence on how such scenes could be made accessible for children who cannot use direct selection. Using a line drawn scene of a living room, a traditional traveling cursor (a green outline of objects within the scene) was compared with sequential animation-logically matching the function of items in the scene (e.g., hands of a clock moving, a lamp turning on and off, etc...
April 21, 2017: Assistive Technology: the Official Journal of RESNA
https://www.readbyqxmd.com/read/28430021/family-perspectives-on-telemedicine-for-pediatric-subspecialty-care
#18
Kristin N Ray, Laura Ellen Ashcraft, Ateev Mehrotra, Elizabeth Miller, Jeremy M Kahn
BACKGROUND: Children often have difficulty accessing subspecialty care, and telemedicine may improve access to subspecialty care, but information is lacking on how best to implement telemedicine programs to maximize acceptance and, ultimately, maximize impact for patients and their families. METHODS AND MATERIALS: To understand how subspecialty telemedicine is perceived and to identify design elements with the potential to improve telemedicine uptake and impact, we conducted and analyzed semi-structured interviews with 21 informants, including parents and caregivers of children with subspecialty care needs and adolescent and young adult patients with subspecialty care needs...
April 21, 2017: Telemedicine Journal and E-health: the Official Journal of the American Telemedicine Association
https://www.readbyqxmd.com/read/28429176/the-log-linear-response-function-of-the-bounded-number-line-task-is-unrelated-to-the-psychological-representation-of-quantity
#19
Dale J Cohen, Philip T Quinlan
The bounded number-line task has been used extensively to assess the numerical competence of both children and adults. One consistent finding has been that young children display a logarithmic response function, whereas older children and adults display a more linear response function. Traditionally, these log-linear functions have been interpreted as providing a transparent window onto the nature of the participants' psychological representations of quantity (termed here a direct response strategy). Here we show that the direct response strategy produces the log-linear response function regardless of whether the psychological representation of quantity is compressive or expansive...
April 20, 2017: Psychonomic Bulletin & Review
https://www.readbyqxmd.com/read/28429003/electrochemical-plasmonic-metamaterials-towards-fast-electro-tuneable-reflecting-nanoshutters
#20
Debabrata Sikdar, Alwin Bucher, Cristian Zagar, Alexei A Kornyshev
Self-assembling arrays of metallic nanoparticles at liquid|liquid or liquid|solid interfaces could deliver new platforms for tuneable optical systems. Such systems can switch between very-high and very-low reflectance states upon assembly and disassembly of nanoparticles at the interface, respectively. This encourages creation of electro-variably reversible mirror/window nanoplasmonic devices. However, the response time of these systems is usually limited by the rate-of-diffusion of the nanoparticles in the liquid, towards the interface and back...
April 21, 2017: Faraday Discussions
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