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https://www.readbyqxmd.com/read/28098530/fatal-infection-with-murray-valley-encephalitis-virus-imported-from-australia-to-canada-2011
#1
Daniel J Niven, Kevin Afra, Mircea Iftinca, Raymond Tellier, Kevin Fonseca, Andreas Kramer, David Safronetz, Kimberly Holloway, Michael Drebot, Andrew S Johnson
Murray Valley encephalitis virus (MVEV), a flavivirus belonging to the Japanese encephalitis serogroup, can cause severe clinical manifestations in humans. We report a fatal case of MVEV infection in a young woman who returned from Australia to Canada. The differential diagnosis for travel-associated encephalitis should include MVEV, particularly during outbreak years.
February 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28098525/genetic-diversity-and-new-lineages-of-dengue-virus-serotypes-3-and-4-in-returning-travelers-germany-2006-2015
#2
Sami Shihada, Petra Emmerich, Corinna Thomé-Bolduan, Stephanie Jansen, Stephan Günther, Christina Frank, Jonas Schmidt-Chanasit, Daniel Cadar
During 2006-2015, we analyzed 70 dengue virus (DENV) strains isolated from febrile travelers returning to Germany. High genetic diversity, including multiple co-circulating DENV lineages and emerging new lineages of DENV-3 and DENV-4, was demonstrated. Our passive surveillance system based on returning travelers yielded substantial information on DENV diversity.
February 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28098488/pulse-wave-velocity-and-myocardial-performance-index-in-premature-ovarian-insufficiency
#3
Muhammed Necati Murat Aksoy, Nermin Akdemir, Harun Kilic, Sabiye Yilmaz, Ramazan Akdemir, Huseyin Gunduz
OBJECTIVE: Epidemiological studies suggest that women with loss of ovarian function at early ages may be especially burdened by cardiovascular disease (CVD). In this study, we aimed to evaluate pulse wave velocity and myocardial performance index in patients with premature ovarian insufficiency (POI). DESIGN: We enrolled 51 female patients (mean age 38.9 ± 6.7 years) with POI and 49 healthy subjects (mean age 36.8 ± 5.2 years). All participants underwent a detailed echocardiographic examination and pulse wave velocity (PWV) measurement which is basically the velocity of pulse wave travelling from carotid to femoral artery...
January 18, 2017: Scandinavian Cardiovascular Journal: SCJ
https://www.readbyqxmd.com/read/28098406/contemporary-migration-patterns-in-the-prevalence-of-helicobacter-pylori-infection-a-systematic-review
#4
REVIEW
Samantha Morais, Ana Rute Costa, Ana Ferro, Nuno Lunet, Bárbara Peleteiro
BACKGROUND: A rapid growth in the number of international migrants over the past years has occurred with most traveling to more affluent settings. As Helicobacter pylori infects over half of the adult population and its prevalence is higher in developing countries, understanding the prevalence of infection in migrants can provide insight into future trends in the burden and management of infection. We aimed to describe the prevalence of H. pylori among migrants through a systematic literature review...
January 18, 2017: Helicobacter
https://www.readbyqxmd.com/read/28098011/an-evaluation-of-the-florence-nightingale-foundation-scholarships
#5
Matthew Rose, Angela Tod, Candy McCabe, Richard Giordano
The Florence Nightingale Foundation (FNF) is a charity that awards scholarships in leadership, travel and research to nurses, midwives and other healthcare professionals to promote excellence in practice. The FNF offers mentoring support to scholars, and provides support with career development and writing articles for publication, in addition to the financial award. The leadership scholarships are bespoke: leadership scholars can access a range of development opportunities that are specially commissioned for them, and select their programme of study and experiences, based on their individual needs...
January 18, 2017: Nursing Standard
https://www.readbyqxmd.com/read/28097687/requirements-for-accurate-estimation-of-anisotropic-material-parameters-by-magnetic-resonance-elastography-a-computational-study
#6
D J Tweten, R J Okamoto, P V Bayly
PURPOSE: To establish the essential requirements for characterization of a transversely isotropic material by magnetic resonance elastography (MRE). THEORY AND METHODS: Three methods for characterizing nearly incompressible, transversely isotropic (ITI) materials were used to analyze data from closed-form expressions for traveling waves, finite-element (FE) simulations of waves in homogeneous ITI material, and FE simulations of waves in heterogeneous material. Key properties are the complex shear modulus μ2 , shear anisotropy ϕ=μ1/μ2-1, and tensile anisotropy ζ=E1/E2-1...
January 17, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28097674/monte-carlo-simulations-of-ceiling-scatter-in-nuclear-medicine-99m-tc-131-i-and-18-f
#7
Roald S Schnerr, Anouk N de Jong, Guillaume Landry, Cécile R L P N Jeukens, Roel Wierts
PURPOSE: In the design of nuclear medicine treatment and examination rooms, an important consideration is the shielding required for ionizing radiation from the radioactive isotopes used. The shielding in the walls is normally limited to a height lower than the actual ceiling height. The direct radiation, possibly with build-up correction, can be calculated relatively easily. However, little data is available to estimate the dose contribution from ionizing radiation traveling over the wall shielding and scattering off the ceiling...
January 18, 2017: Medical Physics
https://www.readbyqxmd.com/read/28097480/average-flow-generation-by-a-pulsating-flow-near-a-curved-interface
#8
Lyudmila S Klimenko, Dmitry V Lyubimov
This paper is devoted to the study of curvature influence on the average flow generation near the fluid interface. The time averaging of a non-uniform pulsating flow often results in a nonzero average flow in the bulk. The well-known average flow occurs near a solid surface, the so-called Schlichting mechanism of the average flow generation. For flows with a free surface there is the other known mechanism of Longuet-Higgins, according to which the average flow is generated by surface waves traveling on a free surface...
January 2017: European Physical Journal. E, Soft Matter
https://www.readbyqxmd.com/read/28096413/modeling-the-role-of-voyaging-in-the-coastal-spread-of-the-early-neolithic-in-the-west-mediterranean
#9
Neus Isern, João Zilhão, Joaquim Fort, Albert J Ammerman
The earliest dates for the West Mediterranean Neolithic indicate that it expanded across 2,500 km in about 300 y. Such a fast spread is held to be mainly due to a demic process driven by dispersal along coastal routes. Here, we model the Neolithic spread in the region by focusing on the role of voyaging to understand better the core elements that produced the observed pattern of dates. We also explore the effect of cultural interaction with Mesolithic populations living along the coast. The simulation study shows that (i) sea travel is required to obtain reasonable predictions, with a minimum sea-travel range of 300 km per generation; (ii) leapfrog coastal dispersals yield the best results (quantitatively and qualitatively); and (iii) interaction with Mesolithic people can assist the spread, but long-range voyaging is still needed to explain the archaeological pattern...
January 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28096109/financial-ties-of-principal-investigators-and-randomized-controlled-trial-outcomes-cross-sectional-study
#10
Rosa Ahn, Alexandra Woodbridge, Ann Abraham, Susan Saba, Deborah Korenstein, Erin Madden, W John Boscardin, Salomeh Keyhani
OBJECTIVE:  To examine the association between the presence of individual principal investigators' financial ties to the manufacturer of the study drug and the trial's outcomes after accounting for source of research funding. DESIGN:  Cross sectional study of randomized controlled trials (RCTs). SETTING:  Studies published in "core clinical" journals, as identified by Medline, between 1 January 2013 and 31 December 2013. PARTICIPANTS:  Random sample of RCTs focused on drug efficacy...
January 17, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28095796/a-severe-case-of-visceral-leishmaniasis-and-liposomal-amphotericin-b-treatment-failure-in-an-immunosuppressed-patient-15%C3%A2-years-after-exposure
#11
Anna Eichenberger, Annina E Buechi, Andreas Neumayr, Chistroph Hatz, Andri Rauch, Marc Huguenot, Eva Diamantis-Karamitopoulou, Cornelia Staehelin
BACKGROUND: Visceral leishmaniasis (VL) is a protozoan disease, which is responsible for 200.000-400.000 yearly infections worldwide. If left untreated, the fatality rate can be as high as 100% within 2 years. 90% of cases occur in just six countries: India, Bangladesh, Sudan, South Sudan, Ethiopia and Brazil. It is thus a disease rarely seen by physicians in Europe or North America. We report on the fatal case of VL in an 80-year-old immunosuppressed patient who presented with a latency of over 15 years after having visited an endemic region...
January 17, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28095405/defining-the-risk-of-zika-and-chikungunya-virus-transmission-in-human-population-centers-of-the-eastern-united-states
#12
Carrie A Manore, Richard S Ostfeld, Folashade B Agusto, Holly Gaff, Shannon L LaDeau
The recent spread of mosquito-transmitted viruses and associated disease to the Americas motivates a new, data-driven evaluation of risk in temperate population centers. Temperate regions are generally expected to pose low risk for significant mosquito-borne disease; however, the spread of the Asian tiger mosquito (Aedes albopictus) across densely populated urban areas has established a new landscape of risk. We use a model informed by field data to assess the conditions likely to facilitate local transmission of chikungunya and Zika viruses from an infected traveler to Ae...
January 17, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28095371/implementation-of-transmission-functions-for-an-optimized-three-terminal-quantum-dot-heat-engine
#13
Christian H Schiegg, Michael Dzierzawa, Ulrich Eckern
We consider two modifications of a recently proposed three-terminal quantum dot heat engine. First, we investigate the necessity of the thermalization assumption, namely that electrons are always thermalized by inelastic processes when traveling across the cavity where the heat is supplied. Second, we analyze various arrangements of tunneling-coupled quantum dots in order to implement a transmission function that is superior to the Lorentzian transmission function of a single quantum dot. We show that the maximum power of the heat engine can be improved by about a factor of two, even for a small number of dots, by choosing an optimal structure...
January 17, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/28093893/arabidopsis-thaliana-glutathione-s-transferase-theta-2-interacts-with-rsi1-fld-to-activate-systemic-acquired-resistance
#14
Zeeshan Zahoor Banday, Ashis Kumar Nandi
A partly infected plant develops systemic acquired resistance (SAR) and shows heightened resistance during subsequent infections. The infected parts generate certain mobile signals that travel to the distal tissues and help in activation of SAR. SAR is associated with epigenetic modifications of several defense-related genes. However, the mechanisms by which mobile signals contribute to epigenetic changes are little known. Previously we had shown that the Arabidopsis REDUCED SYSTEMIC IMMUNITY 1 (RSI1, alias FLOWERING LOCUS D; FLD), which codes for a putative histone demethylase is required for the activation of SAR...
January 17, 2017: Molecular Plant Pathology
https://www.readbyqxmd.com/read/28093759/supervising-away-from-home-clinical-cultural-and-professional-challenges
#15
Henry Abramovitch, Jan Wiener
This paper explores some challenges of supervising clinical work of trainees, known as 'routers', who live in countries with diverse cultural, social and political traditions, and the analysts who travel to supervise them. It is written as an evolving dialogue between the authors, who explore together the effects of their own culture of origin, and in particular the legacy and values of their own training institutes on the styles and models of analytic supervision. Their dialogue is framed around the meaning of home and experiences of homesickness for analysts working away from home in an interactive field of strangeness in countries where analytical psychology is a relatively new discipline...
February 2017: Journal of Analytical Psychology
https://www.readbyqxmd.com/read/28093348/caudally-directed-inferior-facetal-and-transfacetal-screws-for-c1-c2-and-c1-2-3-fixation
#16
Atul Goel
An alternative caudally directed C2 inferior facetal screw is described. Such screw insertion can form the axial stabilization point in cases undergoing atlantoaxial lateral mass plate/rod and screw fixation and those undergoing C1-2and C1-2-3 spinal fixation. The C2 screw courses from the medial point of pedicle-laminar junction and travels caudally and laterally towards the C2-3 articulation. Deploying a longer screw that traverses in a transarticular fashion into the facetal mass of C3 vertebra one can perform C1-2-3 stabilization...
January 13, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28092815/facile-fabrication-of-fe3o4-octahedra-nanoporous-copper-network-composite-for-high-performance-anode-in-li-ion-batteries
#17
Jiajia Ye, Zhihong Wang, Qin Hao, Binbin Liu, Caixia Xu
Fe3O4 octahedra embedded in conductive nanoporous copper (NPC) network are straightforwardly fabricated by means of alloy refining followed by facile electroless dealloying in mild condition. During selectively dissolving the Al from FeCuAl alloy, the residual Cu atoms assemble to form sponge-like nanostructure, meanwhile the Fe atoms undergo spontaneous oxidation and aggregation to grow into Fe3O4 octahedra travelled through NPC network. Owing to the combination of conductive NPC network, Fe3O4 octahedra exhibit dramatically enhanced lithium storage performances with excellent reversible capacity, enhanced rate performance, as well outstanding cyclability compared with pure Fe3O4 octahedra...
January 11, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28092636/an-analysis-of-intrinsic-variations-of-low-frequency-shear-wave-speed-in-a-stochastic-tissue-model-the-first-application-for-staging-liver-fibrosis
#18
Yu Wang, Min Wang, Jingfeng Jiang
Shear wave elastography is increasingly being used to non-invasively stage liver fibrosis by measuring shear wave speed (SWS). This study quantitatively investigates intrinsic variations among SWS measurements obtained from heterogeneous media such as fibrotic livers. More specifically, it aims to demonstrate that intrinsic variations in SWS measurements, in general, follow a non-Gaussian distribution and are related to the heterogeneous nature of the medium being measured. Using the principle of maximum entropy (ME), our primary objective is to derive a probability density function (PDF) of the SWS distribution in conjunction with a lossless stochastic tissue model...
February 7, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28092503/propagation-modeling-and-analysis-of-molecular-motors-in-molecular-communication
#19
Youssef Chahibi, Ian F Akyildiz, Ilangko Balasingham
Molecular motor networks (MMNs) are networks constructed from molecular motors to enable nanomachines to perform coordinated tasks of sensing, computing, and actuation at the nano- and micro- scales. Living cells are naturally enabled with this same mechanism to establish point-to-point communication between different locations inside the cell. Similar to a railway system, the cytoplasm contains an intricate infrastructure of tracks, named microtubules, interconnecting different internal components of the cell...
December 2016: IEEE Transactions on Nanobioscience
https://www.readbyqxmd.com/read/28092412/population-dynamics-of-hcv-subtypes-in-injecting-drug-users-on-methadone-maintenance-treatment-in-china-associated-with-economic-and-health-reform
#20
Sheng Zhou, Eleonora Cella, Wang Zhou, Wen-Hua Kong, Man-Qing Liu, Pu-Lin Liu, Massimo Ciccozzi, Marco Salemi, Xin-Guang Chen
The extensive genetic heterogeneity of hepatitis C virus (HCV) requires in-depth understanding of the population dynamics of different viral subtypes for more effective control of epidemic outbreaks. We analyzed HCV sequences data from 125 participants in Wuhan, China. These participants were newly infected by subtype 1b (n=13), 3a (n=15), 3b (n=50), and 6a (n=39) while on methadone maintenance treatment (MMT). Bayesian phylogenies and demographic histories were inferred for these subtypes. Participants infected with HCV-1b and 3a were clustered in well-supported monophyletic clades, indicating local sub-epidemics...
January 16, 2017: Journal of Viral Hepatitis
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