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Emergency simulation

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https://www.readbyqxmd.com/read/28535349/solitary-oxygen-dopant-emission-from-carbon-nanotubes-modified-by-dielectric-metasurfaces
#1
Xuedan Ma, Anthony R James, Nicolai F Hartmann, Jon K Baldwin, Jason Dominguez, Michael B Sinclair, Ting S Luk, Omri Wolf, Sheng Liu, Stephen K Doorn, Han Htoon, Igal Brener
All-dielectric metasurfaces made from arrays of high index nanoresonators supporting strong magnetic dipole modes have emerged as a low-loss alternative to plasmonic metasurfaces. Here we use oxygen-doped single-walled carbon nanotubes (SWCNTs) as quantum emitters and couple them to silicon metasurfaces to study effects of the magnetic dipole modes of the constituent nanoresonators on the photoluminescence (PL) of individual SWCNTs. We find that when in resonance, the magnetic mode of the silicon nanoresonators can lead to a moderate average PL enhancement of 0...
May 23, 2017: ACS Nano
https://www.readbyqxmd.com/read/28535197/feeding-and-development-of-emerald-ash-borer-coleoptera-buprestidae-on-cultivated-olive-olea-europaea
#2
Don Cipollini, Chad M Rigsby, Donnie L Peterson
We examined the suitability of cultivated olive, Olea europaea L., as a host for emerald ash borer, Agrilus planipennis Fairmaire. In a bioassay using cut stems from a field-grown olive tree (cv. 'Manzanilla') we found that 45% of larvae that had emerged from eggs used to inoculate stems, were recovered alive, many as larvae or prepupae, during periodic debarking of a subset of stems. Three intact stems that 19 larvae successfully entered were exposed to a simulated overwintering treatment. Four live adults emerged afterwards, and an additional pupa and several prepupae were discovered after debarking these stems...
May 23, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28535146/role-of-spatial-inhomogenity-in-gpcr-dimerisation-predicted-by-receptor-association-diffusion-models
#3
Sneha A Deshpande, Aiswarya B Pawar, Anish Dighe, Chaitanya A Athale, Durba Sengupta
G protein-coupled receptor (GPCR) association is an emerging paradigm with far reaching implications in the regulation of signalling pathways and therapeutic interventions. Recent super resolution microscopy studies have revealed that receptor dimer steady state exhibits sub-second dynamics. In particular the GPCRs, muscarinic acetylcholine receptor M1 (M1MR) and formyl peptide receptor (FPR), have been demonstrated to exhibit a fast association/dissociation kinetics, independent of ligand binding. In this work, we have developed a spatial kinetic Monte Carlo model to investigate receptor homo-dimerisation at a single receptor resolution...
May 23, 2017: Physical Biology
https://www.readbyqxmd.com/read/28534043/familiarity-detection-is-an-intrinsic-property-of-cortical-microcircuits-with-bidirectional-synaptic-plasticity
#4
Xiaoyu Zhang, Han Ju, Trevor B Penney, Antonius M J VanDongen
Humans instantly recognize a previously seen face as "familiar." To deepen our understanding of familiarity-novelty detection, we simulated biologically plausible neural network models of generic cortical microcircuits consisting of spiking neurons with random recurrent synaptic connections. NMDA receptor (NMDAR)-dependent synaptic plasticity was implemented to allow for unsupervised learning and bidirectional modifications. Network spiking activity evoked by sensory inputs consisting of face images altered synaptic efficacy, which resulted in the network responding more strongly to a previously seen face than a novel face...
May 2017: ENeuro
https://www.readbyqxmd.com/read/28533367/data-driven-modeling-reveals-cell-behaviors-controlling-self-organization-during-myxococcus-xanthus-development
#5
Christopher R Cotter, Heinz-Bernd Schüttler, Oleg A Igoshin, Lawrence J Shimkets
Collective cell movement is critical to the emergent properties of many multicellular systems, including microbial self-organization in biofilms, embryogenesis, wound healing, and cancer metastasis. However, even the best-studied systems lack a complete picture of how diverse physical and chemical cues act upon individual cells to ensure coordinated multicellular behavior. Known for its social developmental cycle, the bacterium Myxococcus xanthus uses coordinated movement to generate three-dimensional aggregates called fruiting bodies...
May 22, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28533363/collective-action-and-the-evolution-of-social-norm-internalization
#6
Sergey Gavrilets, Peter J Richerson
Human behavior is strongly affected by culturally transmitted norms and values. Certain norms are internalized (i.e., acting according to a norm becomes an end in itself rather than merely a tool in achieving certain goals or avoiding social sanctions). Humans' capacity to internalize norms likely evolved in our ancestors to simplify solving certain challenges-including social ones. Here we study theoretically the evolutionary origins of the capacity to internalize norms. In our models, individuals can choose to participate in collective actions as well as punish free riders...
May 22, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28530795/modelling-living-cells-response-to-surface-tension-and-chemical-patterns
#7
Marco Macis, Francesca Lugli, Francesco Zerbetto
Mechanobiology is an important epigenetic factor. It influences cell functioning and bears on gene induction, protein synthesis, cell growth and differentiation. In the presence of patterned chemical cues, living cells can take shapes that are far from that of a drop of fluid. These shapes are characterized by inward curvatures that are pinned at the points of location of the cues. The mechano-chemical interactions that orchestrate cell behavior is simulated and controlled by modeling the cells as made by parcels of fluid...
May 22, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28524616/how-to-implement-live-video-recording-in-the-clinical-environment-a-practical-guide-for-clinical-services
#8
Adam Lloyd, Alistair Dewar, Simon Edgar, Dave Caesar, Paul Gowens, Gareth Clegg
BACKGROUND: The use of video in healthcare is becoming more common, particularly in simulation and educational settings. However, video recording live episodes of clinical care is far less routine. AIM: To provide a practical guide for clinical services to embed live video recording. MATERIALS AND METHODS: Using Kotter's 8-step process for leading change, we provide a 'how to' guide to navigate the challenges required to implement a continuous video-audit system based on our experience of video recording in our emergency department resuscitation rooms...
May 19, 2017: International Journal of Clinical Practice
https://www.readbyqxmd.com/read/28523743/applying-lessons-from-social-psychology-to-transform-the-culture-of-error-disclosure
#9
Jason Han, Denise LaMarra, Neha Vapiwala
CONTEXT: The ability to carry out prompt and effective error disclosure has been described in the literature as an essential skill among physicians that can lead to improved patient satisfaction, staff well-being and hospital outcomes. However, few studies have addressed the social psychology principles that may influence physician behaviour. METHODS: The authors provide an overview of recent administrative measures designed to encourage physicians to disclose error, but note that deliberate practice, buttressed with lessons from social psychology, is needed to implement further productive behavioural changes...
May 18, 2017: Medical Education
https://www.readbyqxmd.com/read/28523623/microbial-population-shift-caused-by-sulfamethoxazole-in-engineered-soil-aquifer-treatment-e-sat-system
#10
Ashwinkumar P Rudrashetti, Niti B Jadeja, Deepa Gandhi, Asha A Juwarkar, Abhinav Sharma, Atya Kapley, R A Pandey
The engineered-Soil Aquifer Treatment (e-SAT) system was exploited for the biological degradation of Sulfamethoxazole (SMX) which is known to bio-accumulate in the environment. The fate of SMX in soil column was studied through laboratory simulation for a period of 90 days. About 20 ppm SMX concentration could be removed in four consecutive cycles in e-SAT. To understand the microbial community change and biological degradation of SMX in e-SAT system, metagenomic analysis was performed for the soil samples before (A-EBD) and after SMX exposure (B-EBD) in the e-SAT...
June 2017: World Journal of Microbiology & Biotechnology
https://www.readbyqxmd.com/read/28521528/prevention-and-control-of-emergent-infectious-disease-with-high-specific-antigen-sensor
#11
Hongzhe Zhang, Shanshan Zhang, Nan Liu
This study aims to evaluate the application of a new type of high specificity antigen sensor in detecting the viruses in sudden infectious diseases. Influenza A (H1N1) virus immunosensor was used for the respective determination of the six kinds of antigens of H1N1, H3N2 viral protein, HA protein of H7N9, influenza B virus, adenovirus, and EV71 virus of same dilution degree on the Screen Printed Carbon Electrode (SPCE), so as to test the specificity of the detection method. In addition, various batches of chick embryo allantoic saliva dilution simulation samples were also detected on their recovery (accuracy), repeatability (precision), and stability...
May 18, 2017: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/28521007/computing-the-social-brain-connectome-across-systems-and-states
#12
Daniel Alcalá-López, Jonathan Smallwood, Elizabeth Jefferies, Frank Van Overwalle, Kai Vogeley, Rogier B Mars, Bruce I Turetsky, Angela R Laird, Peter T Fox, Simon B Eickhoff, Danilo Bzdok
Social skills probably emerge from the interaction between different neural processing levels. However, social neuroscience is fragmented into highly specialized, rarely cross-referenced topics. The present study attempts a systematic reconciliation by deriving a social brain definition from neural activity meta-analyses on social-cognitive capacities. The social brain was characterized by meta-analytic connectivity modeling evaluating coactivation in task-focused brain states and physiological fluctuations evaluating correlations in task-free brain states...
May 18, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/28520427/kinetic-monte-carlo-modeling-of-charge-carriers-in-organic-electronic-devices-suppression-of-the-self-interaction-error
#13
Haoyuan Li, Jean-Luc Brédas
Kinetic Monte Carlo (KMC) simulations have emerged as an important tool to help improve the efficiency of organic electronic devices by providing a better understanding of their device physics. In the KMC simulation of an organic device, the reliability of the results depends critically on the accuracy of the chosen charge-transfer rates, which are themselves strongly influenced by the site-energy differences. These site-energy differences include components coming from the electrostatic forces present in the system, which are often evaluated through electric potentials described by the Poisson equation...
May 22, 2017: Journal of Physical Chemistry Letters
https://www.readbyqxmd.com/read/28515878/a-multispecies-dependent-double-observer-model-a-new-method-for-estimating-multispecies-abundance
#14
Jessie D Golding, J Joshua Nowak, Victoria J Dreitz
Conservation of biological communities requires accurate estimates of abundance for multiple species. Recent advances in estimating abundance of multiple species, such as Bayesian multispecies N-mixture models, account for multiple sources of variation, including detection error. However, false-positive errors (misidentification or double counts), which are prevalent in multispecies data sets, remain largely unaddressed. The dependent-double observer (DDO) method is an emerging method that both accounts for detection error and is suggested to reduce the occurrence of false positives because it relies on two observers working collaboratively to identify individuals...
May 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28515778/evolution-of-movement-rate-increases-the-effectiveness-of-marine-reserves-for-the-conservation-of-pelagic-fishes
#15
Jonathan A Mee, Sarah P Otto, Daniel Pauly
Current debates about the efficacy of no-take marine reserves (MR) in protecting large pelagic fish such as tuna and sharks have usually not considered the evolutionary dimension of this issue, which emerges because the propensity to swim away from a given place, like any other biological trait, will probably vary in a heritable fashion among individuals. Here, based on spatially explicit simulations, we investigated whether selection to remain in MRs to avoid higher fishing mortality can lead to the evolution of more philopatric fish...
June 2017: Evolutionary Applications
https://www.readbyqxmd.com/read/28515283/anisomorphic-cortical-reorganization-in-asymmetric-sensorineural-hearing-loss
#16
Steven W Cheung, Craig Anthony Atencio, Eliott R J Levy, Robert C Froemke, Christoph E Schreiner
Acoustic trauma or inner ear disease may predominantly injure one ear, causing asymmetric sensorineural hearing loss (SNHL). While characteristic frequency (CF) map plasticity of primary auditory cortex (AI) contralateral to the injured ear has been detailed, there is no study that also evaluates ipsilateral AI to compare cortical reorganization across both hemispheres. We assess whether normal isomorphic mirror image relationship between the two hemispheres is maintained or disrupted in mild-to-moderate asymmetric SNHL of adult squirrel monkeys...
May 17, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/28514644/the-importance-of-hormonal-circadian-rhythms-in-daily-feeding-patterns-an-illustration-with-simulated-pigs
#17
Iris J M M Boumans, Imke J M de Boer, Gert Jan Hofstede, Susanne E la Fleur, Eddie A M Bokkers
The interaction between hormonal circadian rhythms and feeding behaviour is not well understood. This study aimed to deepen our understanding of mechanisms underlying circadian feeding behaviour in animals, using pigs, Sus scrofa, as a case study. Pigs show an alternans feeding pattern, that is, a small peak of feed intake at the beginning of the day and a larger peak at the end of the day. We simulated the feeding behaviour of pigs over a 24h period. The simulation model contained mechanisms that regulate feeding behaviour of animals, including: processing of feed in the gastrointestinal tract, fluctuation in energy balance, circadian rhythms of melatonin and cortisol and motivational decision-making...
May 19, 2017: Hormones and Behavior
https://www.readbyqxmd.com/read/28514510/injury-to-the-infrapatellar-branch-of-the-saphenous-nerve-during-tendon-graft-harvesting-for-knee-ligament-reconstruction-an-ultrasound-simulation-study
#18
Przemysław A Pękala, Ewa Miza, Brandon Michael Henry, Patrick Popieluszko, Marios Loukas, Krzysztof A Tomaszewski
INTRODUCTION: The clinical anatomy of the infrapatellar branch of the saphenous nerve (IPBSN) is of particular importance during operations in the area of the knee, especially when material for anterior cruciate ligament reconstruction is harvested. The nerve can easily be injured during the harvesting procedure, leading to postoperative complications that reduce quality of life. Three different skin incisions are commonly used during hamstring tendon harvesting: horizontal, vertical, and oblique...
May 17, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28511730/simulation-in-canadian-postgraduate-emergency-medicine-training-a-national-survey
#19
Evan Russell, Andrew Koch Hall, Carly Hagel, Andrew Petrosoniak, Jeffrey Damon Dagnone, Daniel Howes
OBJECTIVES: Simulation-based education (SBE) is an important training strategy in emergency medicine (EM) postgraduate programs. This study sought to characterize the use of simulation in FRCPC-EM residency programs across Canada. METHODS: A national survey was administered to residents and knowledgeable program representatives (PRs) at all Canadian FRCPC-EM programs. Survey question themes included simulation program characteristics, the frequency of resident participation, the location and administration of SBE, institutional barriers, interprofessional involvement, content, assessment strategies, and attitudes about SBE...
May 17, 2017: CJEM
https://www.readbyqxmd.com/read/28511093/hypoxia-based-strategies-for-regenerative-dentistry-views-from-the-different-dental-fields
#20
REVIEW
Anna Sonja Müller, Klara Janjić, Bledar Lilaj, Michael Edelmayer, Hermann Agis
The understanding of the cell biological processes underlying development and regeneration of oral tissues leads to novel regenerative approaches. Over the past years, knowledge on key roles of the hypoxia-based response has become more profound. Based on these findings, novel regenerative approaches for dentistry are emerging, which target cellular oxygen sensors. These approaches include hypoxia pre-conditioning and pharmacologically simulated hypoxia. The increase in studies on hypoxia and hypoxia-based strategies in regenerative dentistry highlights the growing attention to hypoxia's role in regeneration and its underlying biology, as well as its application in a therapeutic setting...
April 26, 2017: Archives of Oral Biology
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