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https://www.readbyqxmd.com/read/28103632/global-health-and-emergency-care-defining-clinical-research-priorities
#1
Bhakti Hansoti, Adam R Aluisio, Meagan A Barry, Kevin Davey, Brian A Lentz, Payal Modi, Jennifer A Newberry, Melissa H Patel, Tricia A Smith, Alexandra M Vinograd, Adam C Levine
OBJECTIVES: Despite recent strides in the development of Global Emergency Medicine (EM), the field continues to lag in applying a scientific approach to identifying critical knowledge gaps and advancing evidence-based solutions to clinical and public health problems seen in emergency departments worldwide. Here, progress on the Global EM research agenda created at the 2013 Academic Emergency Medicine Global Health and Emergency Care Consensus Conference is evaluated and critical areas for future development in emergency care research internationally are identified...
January 19, 2017: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
https://www.readbyqxmd.com/read/28103566/exact-and-approximate-stability-of-solutions-to-traveling-salesman-problems
#2
Moritz Niendorf, Anouck R Girard
This paper presents the stability analysis of an optimal tour for the symmetric traveling salesman problem (TSP) by obtaining stability regions. The stability region of an optimal tour is the set of all cost changes for which that solution remains optimal and can be understood as the margin of optimality for a solution with respect to perturbations in the problem data. It is known that it is not possible to test in polynomial time whether an optimal tour remains optimal after the cost of an arbitrary set of edges changes...
January 17, 2017: IEEE Transactions on Cybernetics
https://www.readbyqxmd.com/read/28103564/mograms-a-network-based-methodology-for-visualizing-the-set-of-nondominated-solutions-in-multiobjective-optimization
#3
Krzysztof Trawinski, Manuel Chica, David P Pancho, Sergio Damas, Oscar Cordon
An appropriate visualization of multiobjective nondominated solutions is a valuable asset for decision making. Although there are methods for visualizing the solutions in the design space, they do not provide any information about their relationship. In this paper, we propose a novel methodology that allows the visualization of the nondominated solutions in the design space and their relationships by means of a network. The nodes represent the solutions in the objective space while the edges show the relationships among the solutions in the design space...
January 16, 2017: IEEE Transactions on Cybernetics
https://www.readbyqxmd.com/read/28103563/effective-glottal-instant-detection-and-electroglottographic-parameter-extraction-for-automated-voice-pathology-assessment
#4
Pranav Deshpande, M Sabarimalai Manikandan
Accurate determination of glottal instants and electroglottographic (EGG) parameters is most important in voice pathology analysis including multiple voice disorders: neurological, functional, and laryngeal diseases. In this paper, we present a new effective method for reliable detection of glottal instants and EGG parameters from an EGG signal composed of voiced and non-voice segments. In the first stage, we present an adaptive variational mode decomposition (aVMD) based algorithm for suppressing low-frequency artifacts and additive high-frequency noises...
January 17, 2017: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/28103558/effective-multi-query-expansions-collaborative-deep-networks-based-feature-learning-for-robust-landmark-retrieval
#5
Yang Wang, Xuemin Lin, Lin Wu, Wenjie Zhang
Given a query photo issued by a user (q-user), the landmark retrieval is to return a set of photos with their landmarks similar to those of the query, while the existing studies on the landmark retrieval focus on exploiting geometries of landmarks for similarity matches between candidate photos and a query photo. We observe that the same landmarks provided by different users over social media community may convey different geometry information depending on the viewpoints and/or angles, and may subsequently yield very different results...
January 18, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28103551/ultrasound-flow-mapping-for-the-investigation-of-crystal-growth
#6
Norman Thieme, Paul Bonisch, Dagmar Meier, Richard Nauber, Lars Buttner, Kaspars Dadzis, Olf Patzold, Lamine Sylla, Jurgen Czarske
A high energy conversion and cost efficiency are keys for the transition to renewable energy sources, e.g. solar cells. The efficiency of multi-crystalline solar cells can be improved by enhancing the understanding of its crystallization process, especially the directional solidification. In this paper, a novel measurement system for the characterization of flow phenomena and solidification processes in low-temperature model experiments on the basis of ultrasound Doppler velocimetry is described. It captures turbulent flow phenomena in two planes with a frame rate of 3...
January 16, 2017: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/28103549/cardiac-image-reconstruction-via-non-linear-motion-correction-based-on-partial-angle-reconstructed-images
#7
Seungeon Kim, Yongjin Chang, Jong Beom Ra
Even though the X-ray CT scan is considered suitable for fast imaging, motion-artifact-free cardiac imaging is still an important issue because the gantry rotation speed is not fast enough compared with the heart motion. To obtain a heart image with less motion artifacts, a motion estimation (ME) and motion compensation (MC) approach is usually adopted. In this paper, we propose a ME/MC algorithm that can estimate a non-linear heart motion model from a sinogram with a rotation angle of less than 360°. In this algorithm, we first assume the heart motion to be non-rigid but linear, and thereby estimate an initial 4D motion vector field (MVF) during a half rotation by using conjugate partial angle reconstructed images, as in our previous ME/MC algorithm...
January 17, 2017: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/28103467/-investigation-of-genetic-etiology-in-neurodegenerative-dementias-recommendations-from-the-centro-hospitalar-s%C3%A3-o-jo%C3%A3-o-neurogenetics-group
#8
João Massano, Miguel Leão, Carolina Garrett
In the past few years several gene mutations have been identified as causative of the most frequent neurodegenerative dementias (Alzheimer disease and frontotemporal dementia). These advances, along with the complex phenotype-genotype relationships and the costs associated with genetic testing, have often made it difficult for clinicians to decide with regard to a rational plan for the investigation of the genetic etiology of the degenerative dementias. The Centro Hospitalar São João Neurogenetics Group, a multidisciplinary team of Neurologists and Geneticists with special interest in neurogenetic disorders, devised consensus recommendations for the investigation of the genetic etiology of Alzheimer disease and frontotemporal dementia in clinical practice, based on international consensus documents (currently containing partly outdated information) and published scientific evidence on this topic...
October 2016: Acta Médica Portuguesa
https://www.readbyqxmd.com/read/28103450/paper-based-analytical-devices-for-clinical-diagnosis-recent-advances-in-the-fabrication-techniques-and-sensing-mechanisms
#9
Mazhar Sher, Rachel Zhuang, Utkan Demirci, Waseem Asghar
There is a significant interest in developing inexpensive portable biosensing platforms for various applications including disease diagnostics, environmental monitoring, food safety, and water testing at the point-of-care (POC) settings. Current diagnostic assays available in the developed world require sophisticated laboratory infrastructure and expensive reagents. Hence, they are not suitable for resource-constrained settings with limited financial resources, basic health infrastructure, and few trained technicians...
January 19, 2017: Expert Review of Molecular Diagnostics
https://www.readbyqxmd.com/read/28103404/hermeneutic-phenomenological-analysis-the-possibility-beyond-actuality-in-thematic-analysis
#10
Ken H M Ho, Vico C L Chiang, Doris Leung
AIMS: This paper discusses the ways researchers may become open to manifold interpretations of lived experience through thematic analysis that follows the tradition of hermeneutic phenomenology. BACKGROUND: Martin Heidegger's thinking about historical contexts of understandings and the notions of 'alētheia' and 'techne' disclose what he called meaning of lived experience, as the 'unchanging Being of changing beings'. While these notions remain central to hermeneutic phenomenological research, novice phenomenologists usually face the problem of how to incorporate these philosophical tenets into thematic analysis...
January 19, 2017: Journal of Advanced Nursing
https://www.readbyqxmd.com/read/28103244/some-muirhead-mean-operators-for-intuitionistic-fuzzy-numbers-and-their-applications-to-group-decision-making
#11
Peide Liu, Dengfeng Li
Muirhead mean (MM) is a well-known aggregation operator which can consider interrelationships among any number of arguments assigned by a variable vector. Besides, it is a universal operator since it can contain other general operators by assigning some special parameter values. However, the MM can only process the crisp numbers. Inspired by the MM' advantages, the aim of this paper is to extend MM to process the intuitionistic fuzzy numbers (IFNs) and then to solve the multi-attribute group decision making (MAGDM) problems...
2017: PloS One
https://www.readbyqxmd.com/read/28103107/star-masses-and-star-planet-distances-for-earth-like-habitability
#12
David Waltham
This paper presents statistical estimates for the location and duration of habitable zones (HZs) around stars of different mass. The approach is based upon the assumption that Earth's location, and the Sun's mass, should not be highly atypical of inhabited planets. The results support climate-model-based estimates for the location of the Sun's HZ except models giving a present-day outer-edge beyond 1.64 AU. The statistical approach also demonstrates that there is a habitability issue for stars smaller than 0...
January 2017: Astrobiology
https://www.readbyqxmd.com/read/28102833/a-multimodal-approach-to-estimating-vigilance-using-eeg-and-forehead-eog
#13
Wei-Long Zheng, Baoliang Lu
OBJECTIVE: Covert aspects of ongoing user mental states provide key context information for user-aware human computer interactions. In this paper, we focus on the problem of estimating the vigilance of users using EEG and EOG signals. APPROACH: The PERCLOS index as vigilance annotation is obtained from eye tracking glasses. To improve the feasibility and wearability of vigilance estimation devices for real-world applications, we adopt a novel electrode placement for forehead EOG and extract various eye movement features, which contain the principal information of traditional EOG...
January 19, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28102570/simultaneous-determination-of-free-and-total-prostate-specific-antigen-by-a-magnetic-particle-based-time-resolved-fluoroimmunoassay
#14
Bin Zhou, Jue Zhang, Zhongwei Lv, Jun Fan, Yi Zhang, Biao Huang
OBJECTIVES: In this paper, a novel, sensitive and rapid method to simultaneously determine the free and total prostate-specific antigen (fPSA and tPSA) in serum by combining a time-resolved fluoroimmunoassay (TRFIA) and immunomagnetic separation was described. METHODS: The new approach uses magnetic particles as an immobilization matrix and means of separation, whereas the luminescent europium (Eu) and samarium (Sm) chelates are used as probes. The proposed method was evaluated via a single-step, sandwich-type TRFIA immunoassay of tPSA and fPSA as model analytes in serum...
January 19, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28102531/a-systems-dynamics-approach-to-the-efficacy-of-oxime-therapy-for-mild-exposure-to-sarin-gas
#15
Daniel J Droste, Michael L Shelley, Jeffery M Gearhart, David M Kempisty
The use of nerve agents such as sarin is as much a threat today as any other time in our history. The events in Syria in 2013 are proof of this. "The Obama administration asserted Sunday for the first time that the Syrian government used the nerve gas sarin to kill more than 1,400 people (August 21, 2013) in the world's gravest chemical weapons attack in 25 years." With these recent events clear in our mind, we must focus on the horrific nature of these chemical agents to devise a strategy that will enable first responders to counteract these insidious chemicals...
April 2016: American Journal of Disaster Medicine
https://www.readbyqxmd.com/read/28102442/seasonal-differences-in-thermal-sensation-in-the-outdoor-urban-environment-of-mediterranean-climates-the-example-of-athens-greece
#16
Areti Tseliou, Ioannis X Tsiros, Marialena Nikolopoulou
Outdoor urban areas are very important for cities and microclimate is a critical parameter in the design process, contributing to thermal comfort which is important for urban developments. The research presented in this paper is part of extensive field surveys conducted in Athens aimed at investigating people's thermal sensation in a Mediterranean city. Based on 2313 questionnaires and microclimatic data the current work focuses on the relative frequencies of people's evaluation of the thermal along with the sun and wind sensations between two seasons trying to identify the seasonal differences in thermal sensation...
January 19, 2017: International Journal of Biometeorology
https://www.readbyqxmd.com/read/28102397/highly-exposed-fe-n4-active-sites-in-porous-poly-iron-phthalocyanine-based-oxygen-reduction-electrocatalyst-with-ultrahigh-performance-for-air-cathode
#17
Ganesan Anandhababu, Syed Comail Abbas, Jiangquan Lv, Kui Ding, Qin Liu, Dickson D Babu, Yiyin Huang, Jiafang Xie, Maoxiang Wu, Yaobing Wang
Progress in the development of efficient electrocatalysts for oxygen reduction reactions is imperative for various energy systems such as metal-air batteries and fuel cells. In this paper, an innovative porous two-dimensional (2D) poly-iron-phthalocyanine (PFe-Pc) based oxygen reduction electrocatalyst created with a simple solid-state chemical reaction without pyrolysis is reported. In this strategy, silicon dioxide nanoparticles play a pivotal role in preserving the Fe-N4 structure during the polymerization process and thereby assist in the development of a porous structure...
January 19, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28102338/strengthening-of-ceramic-based-artificial-nacre-via-synergistic-interactions-of-1d-vanadium-pentoxide-and-2d-graphene-oxide-building-blocks
#18
Andrea Knöller, Christian P Lampa, Felix von Cube, Tingying Helen Zeng, David C Bell, Mildred S Dresselhaus, Zaklina Burghard, Joachim Bill
Nature has evolved hierarchical structures of hybrid materials with excellent mechanical properties. Inspired by nacre's architecture, a ternary nanostructured composite has been developed, wherein stacked lamellas of 1D vanadium pentoxide nanofibres, intercalated with water molecules, are complemented by 2D graphene oxide (GO) nanosheets. The components self-assemble at low temperature into hierarchically arranged, highly flexible ceramic-based papers. The papers' mechanical properties are found to be strongly influenced by the amount of the integrated GO phase...
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28102306/high-speed-terahertz-modulator-on-the-chip-based-on-tunable-terahertz-slot-waveguide
#19
P K Singh, S Sonkusale
This paper presents an on-chip device that can perform gigahertz-rate amplitude modulation and switching of broadband terahertz electromagnetic waves. The operation of the device is based on the interaction of confined THz waves in a novel slot waveguide with an electronically tunable two dimensional electron gas (2DEG) that controls the loss of the THz wave propagating through this waveguide. A prototype device is fabricated which shows THz intensity modulation of 96% at 0.25 THz carrier frequency with low insertion loss and device length as small as 100 microns...
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28102167/assessment-and-comparison-of-the-efficacy-of-rehabilitation-conducted-at-a-sanatorium-and-in-an-outpatient-facility-in-patients-with-low-back-pain-pilot-study
#20
Jakub Szewczyk
BACKGROUND: Low back pain is nowadays believed to be one of the most serious and common health problems and is even often classified as a disease of civilisation. Prevention and treatment of such conditions is very important, particularly taking into consideration the fact that they are increasingly common in young people. Low back pain is effectively prevented and treated with rehabilitation. The aim of this paper was to assess and compare rehabilitation procedures performed in patients with low back pain in the sanatorium setting and on an outpatient basis...
August 30, 2016: Ortopedia, Traumatologia, Rehabilitacja
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