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https://www.readbyqxmd.com/read/29037014/deep-into-the-brain-artificial-intelligence-in-stroke-imaging
#1
REVIEW
Eun-Jae Lee, Yong-Hwan Kim, Namkug Kim, Dong-Wha Kang
Artificial intelligence (AI), a computer system aiming to mimic human intelligence, is gaining increasing interest and is being incorporated into many fields, including medicine. Stroke medicine is one such area of application of AI, for improving the accuracy of diagnosis and the quality of patient care. For stroke management, adequate analysis of stroke imaging is crucial. Recently, AI techniques have been applied to decipher the data from stroke imaging and have demonstrated some promising results. In the very near future, such AI techniques may play a pivotal role in determining the therapeutic methods and predicting the prognosis for stroke patients in an individualized manner...
September 2017: Journal of Stroke
https://www.readbyqxmd.com/read/29036924/bio-inspired-distributed-transmission-power-control-considering-qos-fairness-in-wireless-body-area-sensor-networks
#2
Chan-Jae Lee, Ji-Young Jung, Jung-Ryun Lee
Recently, the development of wireless body area sensor network (WBASN) has accelerated due to the rapid development of wireless technology. In the WBASN environment, many WBASNs coexist where communication ranges overlap with each other, resulting in the possibility of interference. Although nodes in a WBASN typically operate at a low power level, to avoid adversely affecting the human body, high transmission rates may be required to support some applications. In addition to this, since many varieties of applications exist in the WBASN environment, each prospective user may have different quality of service (QoS) requirements...
October 14, 2017: Sensors
https://www.readbyqxmd.com/read/29036909/diabetes-induced-dysfunction-of-mitochondria-and-stem-cells-in-skeletal-muscle-and-the-nervous-system
#3
REVIEW
Shin Fujimaki, Tomoko Kuwabara
Diabetes mellitus is one of the most common metabolic diseases spread all over the world, which results in hyperglycemia caused by the breakdown of insulin secretion or insulin action or both. Diabetes has been reported to disrupt the functions and dynamics of mitochondria, which play a fundamental role in regulating metabolic pathways and are crucial to maintain appropriate energy balance. Similar to mitochondria, the functions and the abilities of stem cells are attenuated under diabetic condition in several tissues...
October 14, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29036895/low-cost-lab-on-chip-for-the-colorimetric-detection-of-nitrate-in-mineral-water-products
#4
Mohammad F Khanfar, Wisam Al-Faqheri, Ala'aldeen Al-Halhouli
The diagnostics of health status and the quality of drinking water are among the most important United Nations sustainable development goals. However, in certain areas, wars and instability have left millions of people setting in refugee camps and dangerous regions where infrastructures are lacking and rapid diagnostics of water quality and medical status are critical. In this work, microfluidic testing chips and photometric setups are developed in cheap and portable way to detect nitrate concentrations in water...
October 14, 2017: Sensors
https://www.readbyqxmd.com/read/29036879/enhancement-of-digital-radiography-image-quality-using-a-convolutional-neural-network
#5
Yuewen Sun, Litao Li, Peng Cong, Zhentao Wang, Xiaojing Guo
Digital radiography system is widely used for noninvasive security check and medical imaging examination. However, the system has a limitation of lower image quality in spatial resolution and signal to noise ratio. In this study, we explored whether the image quality acquired by the digital radiography system can be improved with a modified convolutional neural network to generate high-resolution images with reduced noise from the original low-quality images. The experiment evaluated on a test dataset, which contains 5 X-ray images, showed that the proposed method outperformed the traditional methods (i...
October 10, 2017: Journal of X-ray Science and Technology
https://www.readbyqxmd.com/read/29036851/a-novel-low-cost-approach-for-navigated-transcranial-magnetic-stimulation
#6
Jakob Rodseth, Edward P Washabaugh, Chandramouli Krishnan
BACKGROUND: Transcranial magnetic stimulation (TMS) is commonly used for assessing or modulating brain excitability. However, the credibility of TMS outcomes depends on accurate and reliable coil placement during stimulation. Navigated TMS systems can address this issue, but these systems are expensive for routine use in clinical and research environments. OBJECTIVE: The purpose of this study was to provide a high-quality open source framework for navigated TMS and test its reliability and accuracy using standard TMS procedures...
October 9, 2017: Restorative Neurology and Neuroscience
https://www.readbyqxmd.com/read/29036627/using-uncertainty-to-link-and-rank-evidence-from-biomedical-literature-for-model-curation
#7
Chrysoula Zerva, Riza Batista-Navarro, Philip Day, Sophia Ananiadou
Motivation: In recent years, there has been great progress in the field of automated curation of biomedical networks and models, aided by text mining methods that provide evidence from literature. Such methods must not only extract snippets of text that relate to model interactions, but also be able to contextualize the evidence and provide additional confidence scores for the interaction in question. Although various approaches calculating confidence scores have focused primarily on the quality of the extracted information, there has been little work on exploring the textual uncertainty conveyed by the author...
July 24, 2017: Bioinformatics
https://www.readbyqxmd.com/read/29036604/accomplishing-reform-successful-case-studies-drawn-from-the-health-systems-of-60-countries
#8
Jeffrey Braithwaite, Russell Mannion, Yukihiro Matsuyama, Paul Shekelle, Stuart Whittaker, Samir Al-Adawi, Kristiana Ludlow, Wendy James, Hsuen P Ting, Jessica Herkes, Louise A Ellis, Kate Churruca, Wendy Nicklin, Clifford Hughes
Healthcare reform typically involves orchestrating a policy change, mediated through some form of operational, systems, financial, process or practice intervention. The aim is to improve the ways in which care is delivered to patients. In our book 'Health Systems Improvement Across the Globe: Success Stories from 60 Countries', we gathered case-study accomplishments from 60 countries. A unique feature of the collection is the diversity of included countries, from the wealthiest and most politically stable such as Japan, Qatar and Canada, to some of the poorest, most densely populated or politically challenged, including Afghanistan, Guinea and Nigeria...
September 20, 2017: International Journal for Quality in Health Care
https://www.readbyqxmd.com/read/29036503/implementing-electronic-health-records-ehrs-health-care-provider-perceptions-before-and-after-transition-from-a-local-basic-ehr-to-a-commercial-comprehensive-ehr
#9
Marie Krousel-Wood, Allison B McCoy, Chad Ahia, Elizabeth W Holt, Donnalee N Trapani, Qingyang Luo, Eboni G Price-Haywood, Eric J Thomas, Dean F Sittig, Richard V Milani
Objective: We assessed changes in the percentage of providers with positive perceptions of electronic health record (EHR) benefit before and after transition from a local basic to a commercial comprehensive EHR. Methods: Changes in the percentage of providers with positive perceptions of EHR benefit were captured via a survey of academic health care providers before (baseline) and at 6-12 months (short term) and 12-24 months (long term) after the transition. We analyzed 32 items for the overall group and by practice setting, provider age, and specialty using separate multivariable-adjusted random effects logistic regression models...
September 23, 2017: Journal of the American Medical Informatics Association: JAMIA
https://www.readbyqxmd.com/read/29036364/nanodosimetry-towards-a-new-concept-of-radiation-quality
#10
V Conte, A Selva, P Colautti, G Hilgers, H Rabus, A Bantsar, M Pietrzak, S Pszona
The biological action of ionizing charged particles is initiated at the DNA level, and the effectiveness with which the initial physical effect changes into measurable biological damage is likely ruled by the stochastics of ionizations produced by the incident ions in subcellular nanometric volumes. Based on this hypothesis, experimental nanodosimetry aims at establishing a new concept of radiation quality that builds on measurable characteristics of the particle track structure at the nanometer scale. Three different nanodosimetric detection systems have been developed to date that allow measurements of the number of ionizations produced by the passage of a primary particle in a nanometer-size gas volume (in unit density scale)...
September 23, 2017: Radiation Protection Dosimetry
https://www.readbyqxmd.com/read/29036154/perceptually-optimized-image-rendering
#11
Valero Laparra, Alexander Berardino, Johannes Ballé, Eero P Simoncelli
We develop a framework for rendering photographic images by directly optimizing their perceptual similarity to the original visual scene. Specifically, over the set of all images that can be rendered on a given display, we minimize the normalized Laplacian pyramid distance (NLPD), a measure of perceptual dissimilarity that is derived from a simple model of the early stages of the human visual system. When rendering images acquired with a higher dynamic range than that of the display, we find that the optimization boosts the contrast of low-contrast features without introducing significant artifacts, yielding results of comparable visual quality to current state-of-the-art methods, but without manual intervention or parameter adjustment...
September 1, 2017: Journal of the Optical Society of America. A, Optics, Image Science, and Vision
https://www.readbyqxmd.com/read/29036119/aberration-analysis-of-aotf-based-spectral-imaging-systems
#12
Alexander Machikhin, Vladislav Batshev, Vitold Pozhar
Image aberrations caused by acousto-optic (AO) anisotropic diffraction in uniaxial crystals are discussed. For their analysis, we propose a simplified ray-tracing model of an AO crystal cell (AOC). With this approach, one can assign any configuration of AO interaction, any material and geometry of the crystal, and then estimate all conventional ray aberrations, such as spherical, coma, astigmatism, distortion, etc. The optimization procedure is demonstrated by the aberration analysis of three principal spectral imaging schemes based on AO tunable filters (AOTFs)...
July 1, 2017: Journal of the Optical Society of America. A, Optics, Image Science, and Vision
https://www.readbyqxmd.com/read/29036065/electromagnetic-energy-stored-in-inhomogeneous-scattering-systems
#13
Tiago J Arruda, Felipe A Pinheiro, Alexandre S Martinez
We analytically study the time-averaged electromagnetic energy stored inside scatterers containing inclusions of arbitrary shapes. Assuming the low density of inclusions, we derive the expression for the energy-transport velocity through disordered media without relying on the radiative transfer equation. Moreover, this expression is independent of the shape of scatterers. In addition, we obtain a relation between the dwell and absorption times associated with inclusions by considering the relationship between the internal energy and absorption cross-section...
October 1, 2017: Journal of the Optical Society of America. A, Optics, Image Science, and Vision
https://www.readbyqxmd.com/read/29036048/laser-diode-side-pumped-nd-yvo4-microchip-laser-with-film-etched-microcavity-mirrors
#14
Jiyang Li, Yanxiong Niu, Sanbin Chen, Yidong Tan
Microchip lasers are applied as the light sources on various occasions with the end-pumping scheme. However, the vibration, the temperature drift, or the mechanical deformation of the pumping light in laser diodes in the end-pumping scheme will lead to instability in the microchip laser output, which causes errors and malfunctioning in the optic systems. In this paper, the side-pumping scheme is applied for improving the disturbance-resisting ability of the microchip laser. The transverse mode and the frequency purity of the laser output are tested...
October 1, 2017: Journal of the Optical Society of America. A, Optics, Image Science, and Vision
https://www.readbyqxmd.com/read/29035964/medication-safety-programs-in-primary-care-a-scoping-review
#15
Hanan Khalil, Monica Shahid, Libby Roughead
BACKGROUND: Medication safety plays an essential role in all healthcare organizations; improving this area is paramount to quality and safety of any wider healthcare program. While several medication safety programs in the hospital setting have been described and the associated impact on patient safety evaluated, no systematic reviews have described the impact of medication safety programs in the primary care setting. A preliminary search of the literature demonstrated that no systematic reviews, meta-analysis or scoping reviews have reported on medication safety programs in primary care; instead they have focused on specific interventions such as medication reconciliation or computerized physician order entry...
October 2017: JBI Database of Systematic Reviews and Implementation Reports
https://www.readbyqxmd.com/read/29035922/effect-of-scattering-and-aberrations-on-visual-acuity-for-band-keratopathy
#16
Kazutaka Kamiya, Hidenaga Kobashi, Masahide Takahashi, Nobuyuki Shoji, Kimiya Shimizu
SIGNIFICANCE: The progressive accumulation of the calcification may deteriorate corneal transparency, especially in the interpalpebral area, and subsequent visual performance for patients with band keratopathy. However, the detailed quantitative analysis of light scattering or higher-order aberrations on visual performance for these patients so far has not been elucidated. PURPOSE: The aim of this study was to assess the relationship of intraocular forward scattering, corneal backward scattering, and corneal higher-order aberrations with visual acuity in eyes with band keratopathy...
October 13, 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/29035797/effects-of-gac-layer-on-the-performance-of-gravity-driven-membrane-filtration-gdm-system-for-rainwater-recycling
#17
An Ding, Jinlong Wang, Dachao Lin, Rong Zeng, Shengping Yu, Zhendong Gan, Nanqi Ren, Guibai Li, Heng Liang
Gravity-driven membrane filtration (GDM) is promising for decentralized rainwater recycling, owing to low maintenance and energy consumption. However, the organic removal by GDM process is sometimes undesirable and the quality of the permeate cannot meet the standard of water reuse. To improve this, granular activate carbon (GAC) was added as a particle layer on the membrane surface of GDM system. Additionally, a system with sand addition and a system with no particle addition were trialed as comparisons, to study the combined effects of particle hindering and adsorption on the removal efficacy of organics and the development of permeate flux...
October 7, 2017: Chemosphere
https://www.readbyqxmd.com/read/29035667/why-doctors-consider-leaving-uk-medicine-qualitative-analysis-of-comments-from-questionnaire-surveys-three-years-after-graduation
#18
Trevor W Lambert, Fay Smith, Michael J Goldacre
Objective To report the reasons why doctors are considering leaving medicine or the UK. Design Questionnaire survey. Setting UK. Participants Questionnaires were sent three years after graduation to all UK medical graduates of 2008 and 2012. Main outcome measures Comments from doctors about their main reasons for considering leaving medicine or the UK (or both). Results The response rate was 46.2% (5291/11,461). Among the 60% of respondents who were not definitely intent on remaining in UK medicine, 50% were considering working in medicine outside the UK and 10% were considering leaving medicine...
January 1, 2017: Journal of the Royal Society of Medicine
https://www.readbyqxmd.com/read/29035595/the-influence-of-physical-qualities-on-activity-profiles-of-female-australian-football-match-play
#19
Georgia M Black, Tim J Gabbett, Rich D Johnston, Michael H Cole, Geraldine Naughton, Brian Dawson
PURPOSE: The rapid transition of female Australian football players from amateur to semi-elite competitions has the potential for athletes to be underprepared for match-play. To gain an understanding the match demands of female football, the aims of this study were three-fold: (1) to highlight the physical qualities that discriminate selected and non-selected female Australian Football players, (2) to investigate activity profiles of female Australian Football players, and (3) to gain an understanding of the influence of physical qualities on running performance in female Australian Football match-play...
October 16, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29035523/current-stormwater-harvesting-guidelines-are-inadequate-for-mitigating-risk-from-campylobacter-during-non-potable-reuse-activities
#20
Heather Murphy, Ze Meng, Rebekah Henry, Ana Deletic, David Mccarthy
Campylobacter is a pathogen frequently detected in urban stormwater worldwide. It is one of the leading causes of enteric disease in many developed countries and is the leading cause of enteric disease in Australia. Prior to harvesting stormwater, adequate treatment is necessary to mitigate risks derived from such harmful pathogens. The goal of this research was to estimate the health risks associated with the exposure to Campylobacter when harvesting urban stormwater for toilet flushing and irrigation activities, and the role treatment options play in limiting risks...
October 16, 2017: Environmental Science & Technology
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