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https://www.readbyqxmd.com/read/28214110/pediatric-echocardiographic-nomograms-what-has-been-done-and-what-still-needs-to-be-done
#1
REVIEW
Massimiliano Cantinotti, Shelby Kutty, Eliana Franchi, Marco Paterni, Marco Scalese, Giorgio Iervasi, Martin Koestenberger
Nomograms are essential tools for quantification in pediatric echocardiography. In the last few years, multiple sources highlight that nomograms employed for decades presented significant numerical and methodological limitations. As a result, widely different ranges of normality were generated, thus creating confusion in estimation of several cardiac diseases. New nomograms have recently been generated, overcoming some of the gaps of previous research: wider sample sizes (including neonates/infants), solid statistical/methodological plan, and availability of new data (chamber dimensions, many functional parameters)...
January 19, 2017: Trends in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28212089/streammap-smooth-dynamic-visualization-of-high-density-streaming-points
#2
Chenhui Li, George Baciu, Han Yu
Interactive visualization of streaming points for real-time scatterplots and linear blending of correlation patterns is increasingly becoming the dominant mode of visual analytics for both big data and streaming data from active sensors and broadcasting media. To better visualize and interact with inter-stream patterns, it is generally necessary to smooth out gaps or distortions in the streaming data. Previous approaches either animate the points directly or present a sampled static heatmap. We propose a new approach, called StreamMap, to smoothly blend high-density streaming points and create a visual flow that emphasizes the density pattern distributions...
February 13, 2017: IEEE Transactions on Visualization and Computer Graphics
https://www.readbyqxmd.com/read/28211934/a-computational-assessment-of-the-electronic-thermoelectric-and-defect-properties-of-bournonite-cupbsbs3-and-related-substitutions
#3
Alireza Faghaninia, Guodong Yu, Umut Aydemir, Max Wood, Wei Chen, Gian-Marco Rignanese, G Jeffrey Snyder, Geoffroy Hautier, Anubhav Jain
Bournonite (CuPbSbS3) is an earth-abundant mineral with potential thermoelectric applications. This material has a complex crystal structure (space group Pmn21 #31) and has previously been measured to exhibit a very low thermal conductivity (κ < 1 W m(-1) K(-1) at T ≥ 300 K). In this study, we employ high-throughput density functional theory calculations to investigate how the properties of the bournonite crystal structure change with elemental substitutions. Specifically, we compute the stability and electronic properties of 320 structures generated via substitutions {Na-K-Cu-Ag}{Si-Ge-Sn-Pb}{N-P-As-Sb-Bi}{O-S-Se-Te} in the ABCD3 formula...
February 17, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28211002/factors-that-influence-effective-perioperative-temperature-management-by-anesthesiologists-a-qualitative-study-using-the-theoretical-domains-framework
#4
Sylvain Boet, Andrea M Patey, Justine S Baron, Karim Mohamed, Ashlee-Ann E Pigford, Gregory L Bryson, Jamie C Brehaut, Jeremy M Grimshaw
PURPOSE: Inadvertent perioperative hypothermia (IPH) is associated with a range of adverse outcomes. Safe and effective warming techniques exist to prevent IPH; however, IPH remains common. This study aimed to identify factors that anesthesiologists perceive may influence temperature management during the perioperative period. METHODS: After Research Ethics Board approval, semi-structured interviews were conducted with staff anesthesiologists at a Canadian academic hospital...
February 16, 2017: Canadian Journal of Anaesthesia, Journal Canadien D'anesthésie
https://www.readbyqxmd.com/read/28210860/a-heat-vulnerability-index-to-improve-urban-public-health-management-in-san-juan-puerto-rico
#5
Pablo Méndez-Lázaro, Frank E Muller-Karger, Daniel Otis, Matthew J McCarthy, Ernesto Rodríguez
Increased frequency and length of high heat episodes are leading to more cardiovascular issues and asthmatic responses among the population of San Juan, the capital of the island of Puerto Rico, USA. An urban heat island effect, which leads to foci of higher temperatures in some urban areas, can raise heat-related mortality. The objective of this research is to map the risk of high temperature in particular locations by creating heat maps of the city of San Juan. The heat vulnerability index (HVI) maps were developed using images collected by satellite-based remote sensing combined with census data...
February 17, 2017: International Journal of Biometeorology
https://www.readbyqxmd.com/read/28209050/-active-photoprotection-sunscreens-with-dna-repair-enzymes-a-review-of-the-literature
#6
Matteo Megna, Serena Lembo, Nicola Balato, Giuseppe Monfrecola
Ultraviolet (UV) radiation exerts different harmful effects on human health, being the main etiological agents of certain skin cancers and photoaging. In this context, photoprotection, intended as a set of measures adopted to limit and prevent the effects of UV radiation, plays a critical role in avoiding undesired sunlight outcomes. Traditional sunscreens represent a widely used photoprotective approach, even if they exert a "passive photoprotection" and are not effective once damage to skin cells has been generated after sun exposure...
February 16, 2017: Giornale Italiano di Dermatologia e Venereologia: Organo Ufficiale, Società Italiana di Dermatologia e Sifilografia
https://www.readbyqxmd.com/read/28208749/graphic-warning-labels-and-the-cost-savings-from-reduced-smoking-among-pregnant-women
#7
John A Tauras, Richard M Peck, Kai-Wen Cheng, Frank J Chaloupka
Introduction: The U.S. Food and Drug Administration (FDA) has estimated the economic impact of Graphic Warning Labels (GWLs). By omitting the impact on tobacco consumption by pregnant women, the FDA analysis underestimates the economic benefits that would occur from the proposed regulations. There is a strong link between the occurrence of low birth weight babies and smoking while pregnant. Low birth weight babies in turn generate much higher hospital costs than normal birth weight babies. This study aims to fill the gap by quantifying the national hospital cost savings from the reductions in prenatal smoking that will arise if GWLs are implemented in the U...
February 8, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28208094/a-simple-strategy-to-refine-cu2o-photocatalytic-capacity-for-refractory-pollutants-removal-roles-of-oxygen-reduction-and-fe-ii-chemistry
#8
Ai-Yong Zhang, Yuan-Yi He, Tan Lin, Nai-Hui Huang, Qiao Xu, Jing-Wei Feng
Visible-light-driven photocatalysis is a promising technology for advanced water treatment, but it usually exhibits a low efficiency. Cu2O is a low-cost semiconductor with narrow band gap, high absorption coefficient and suitable conduction band, but suffers from low charge mobility, poor quantum yield and weak catalytic performance. Herein, the Cu2O catalytic capacity for refractory pollutants degradation is drastically improved by a simple and effective strategy. By virtue of the synergistic effects between photocatalysis and Fenton, a novel and efficient photocatalysis-driven Fenton system, PFC, is originally proposed and experimentally validated using Cu2O/Nano-C hybrids...
January 29, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28202288/tiam1-vav2-rac1-axis-a-tug-of-war-between-islet-function-and-dysfunction
#9
REVIEW
Anjaneyulu Kowluru
Glucose-stimulated insulin secretion [GSIS] from the islet β-cell involves a well-orchestrated interplay between metabolic and cationic events. It is well established that intracellular generation of adenine and guanine nucleotide triphosphates [e.g., ATP and GTP] represents one of the requisite signaling steps in GSIS. The small molecular mass GTP-binding proteins [G-proteins; e.g., Rac1 and Cdc42] have been shown to regulate islet β-cell function including actin cytoskeletal remodeling and fusion of insulin granules with the plasma membrane for GSIS to occur...
February 12, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/28196974/the-efficacy-of-different-anti-microbial-metals-at-preventing-the-formation-of-and-eradicating-bacterial-biofilms-of-pathogenic-indicator-strains
#10
Natalie Gugala, Joe A Lemire, Raymond J Turner
The emergence of multidrug-resistant pathogens and the prevalence of biofilm-related infections have generated a demand for alternative anti-microbial therapies. Metals have not been explored in adequate detail for their capacity to combat infectious disease. Metal compounds can now be found in textiles, medical devices and disinfectants-yet, we know little about their efficacy against specific pathogens. To help fill this knowledge gap, we report on the anti-microbial and antibiofilm activity of seven metals: silver, copper, titanium, gallium, nickel, aluminum and zinc against three bacterial strains, Pseudomonas aeruginosa, Staphylococcus aureus and Escherichia coli...
February 15, 2017: Journal of Antibiotics
https://www.readbyqxmd.com/read/28196833/characterization-of-the-activation-of-small-gtpases-by-their-gefs-on-membranes-using-artificial-membrane-tethering
#11
François Peurois, Simon Veyron, Yann Ferrandez, Ilham Ladid, Sarah Benabdi, Mahel Zeghouf, Gérald Peyroche, Jacqueline Cherfils
Attachment of active, GTP-bound small GTPases to membranes by post-translational lipid modifications is pivotal for their ability to process and propagate information in cells. However, generating and manipulating lipidated GTPases has remained difficult, which has limited our quantitative understanding of their activation by GEFs and their termination by GAPs. Here we replaced the lipid modification by a histidine tag in eleven full-length, human small GTPases belonging to the Arf, Rho and Rab families, which allowed to tether them to nickel-lipid containing membranes and characterize the kinetics of their activation by GEFs...
February 14, 2017: Biochemical Journal
https://www.readbyqxmd.com/read/28195563/electron-dynamics-in-graphene-with-spin-orbit-couplings-and-periodic-potentials
#12
Ranjani Seshadri, Diptiman Sen
We use both continuum and lattice models to study the energy-momentum dispersion and the dynamics of a wave packet for an electron moving in graphene in the presence of spin-orbit couplings and either a single potential barrier or a periodic array of potential barriers. Both Kane-Mele and Rashba spin-orbit couplings are considered. A number of special things occur when the Kane-Mele and Rashba couplings are equal in magnitude. In the absence of a potential, the dispersion then consists of both massless Dirac and massive Dirac states...
February 14, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/28194761/editorial-perspective-from-there-to-here-adapting-child-and-adolescent-mental-health-interventions-for-low-resource-settings
#13
EDITORIAL
Gauri Divan
The majority of evidence for child and adolescent mental health interventions is generated in high-income countries. However, the majority of the world's children live in low- and middle-income countries, resulting in a large treatment gap for these disorders. A systematic approach to adapt evidence-based interventions so as to address cultural and contextual issues will increase an interventions acceptability and reach, allowing us to address these enormous unmet needs.
March 2017: Journal of Child Psychology and Psychiatry, and Allied Disciplines
https://www.readbyqxmd.com/read/28193372/-scientific-evidence-on-preventive-interventions-in-childhood-obesity
#14
Raquel Alba-Martín
INTRODUCTION: The increasing prevalence of obesity or overweight at all ages, their associated morbidity and mortality associated, and the increased perception of the problem by the society have generated several hypotheses in response to the scientific and the international community. OBJECTIVE: Investigate the preventive interventions in childhood obesity so far. METHODS: Integrative review during the study period from April 2013 to November 2014...
January 2017: Revista Colombiana de Psiquiatría
https://www.readbyqxmd.com/read/28192956/multicolor-gold-silver-nano-mushrooms-as-ready-to-use-sers-probes-for-ultrasensitive-and-multiplex-dna-mirna-detection
#15
Jing Su, Dongfang Wang, Lena Nörbel, Jianlei Shen, Zhihan Zhao, Yanzhi Dou, Tianhuan Peng, Jiye Shi, Sanjay Mathur, Chunhai Fan, Shiping Song
Uniform silver-containing metal nanostructures with strong and stable surface-enhanced Raman scattering (SERS) signals hold great promise for developing ultrasensitive probes for biodetection. Nevertheless, the direct synthesis of such ready-to-use nanoprobes remains extremely challenging. Herein we report a DNA-mediated gold-silver nanomushroom with interior nanogaps directly synthesized and used for multiplex and simultaneous SERS detection of various DNA and RNA targets. The DNA involved in the nanostructures can act as not only gap DNA (mediated DNA) but also probe DNA (hybridized DNA), and DNA's involvement enables the nanostructures to have the inherent ability to recognize DNA and RNA targets...
February 9, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28192955/microfluidic-migration-and-wound-healing-assay-based-on-mechanically-induced-injuries-of-defined-and-highly-reproducible-areas
#16
Drago Sticker, Sarah Lechner, Christian Jungreuthmayer, Jürgen Zanghellini, Peter Ertl
All cell migration and wound healing assays are based on the inherent ability of adherent cells to move into adjacent cell-free areas, thus providing information on cell culture viability, cellular mechanisms and multicellular movements. Despite their widespread use for toxicological screening, biomedical research and pharmaceutical studies, to date no satisfactory technological solutions are available for the automated, miniaturized and integrated induction of defined wound areas. To bridge this technological gap, we have developed a lab-on-a-chip capable of mechanically inducing circular cell-free areas within confluent cell layers...
January 31, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28188954/comparative-glandular-trichome-transcriptome-based-gene-characterization-reveals-reasons-for-differential-menthol-biosynthesis-in-mentha-species
#17
Md Qussen Akhtar, Nida Qamar, Pallavi Yadav, Pallavi Kulkarni, Ajay Kumar, Ajit Kumar Shasany
The genes involved in menthol biosynthesis are reported earlier in Mentha × piperita. But the information on these genes is not available in Mentha arvensis. To bridge the gap in knowledge on differential biosynthesis of monoterpenes leading to compositional variation in the essential oil of these species, a comparative transcriptome analysis of the glandular trichome was carried out. In addition to the MVA and MEP pathway genes, about 210 and 196 different terpene synthases (TPS) transcripts were identified from annotation in M...
February 11, 2017: Physiologia Plantarum
https://www.readbyqxmd.com/read/28188699/maturation-dependent-control-of-vocal-temporal-plasticity-in-a-songbird
#18
Ryosuke O Tachibana, Miki Takahasi, Neal A Hessler, Kazuo Okanoya
Birdsong is a unique model to address learning mechanisms of the timing control of sequential behaviors, with characteristic temporal structures consisting of serial sequences of brief vocal elements (syllables) and silent intervals (gaps). Understanding the neural mechanisms for plasticity of such sequential behavior should be aided by characterization of its developmental changes. Here, we assessed the level of acute vocal plasticity between young and adult Bengalese finches, and also quantified developmental change in variability of temporal structure...
February 11, 2017: Developmental Neurobiology
https://www.readbyqxmd.com/read/28188691/zebrafish-transgenic-constructs-label-specific-neurons-in-xenopus-laevis-spinal-cord-and-identify-frog-v0v-spinal-neurons
#19
José L Juárez-Morales, Reyna I Martinez-De Luna, Michael E Zuber, Alan Roberts, Katharine E Lewis
A correctly functioning spinal cord is crucial for locomotion and communication between body and brain but there are fundamental gaps in our knowledge of how spinal neuronal circuitry is established and functions. To understand the genetic program that regulates specification and functions of this circuitry, we need to connect neuronal molecular phenotypes with physiological analyses. Studies using Xenopus laevis tadpoles have increased our understanding of spinal cord neuronal physiology and function, particularly in locomotor circuitry...
February 11, 2017: Developmental Neurobiology
https://www.readbyqxmd.com/read/28188106/analytical-validation-of-the-next-generation-sequencing-assay-for-a-nationwide-signal-finding-clinical-trial-molecular-analysis-for-therapy-choice-clinical-trial
#20
Chih-Jian Lih, Robin D Harrington, David J Sims, Kneshay N Harper, Courtney H Bouk, Vivekananda Datta, Jonathan Yau, Rajesh R Singh, Mark J Routbort, Rajyalakshmi Luthra, Keyur P Patel, Geeta S Mantha, Savitri Krishnamurthy, Karyn Ronski, Zenta Walther, Karin E Finberg, Sandra Canosa, Hayley Robinson, Amelia Raymond, Long P Le, Lisa M McShane, Eric C Polley, Barbara A Conley, James H Doroshow, A John Iafrate, Jeffrey L Sklar, Stanley R Hamilton, P Mickey Williams
The National Cancer Institute-Molecular Analysis for Therapy Choice (NCI-MATCH) trial is a national signal-finding precision medicine study that relies on genomic assays to screen and enroll patients with relapsed or refractory cancer after standard treatments. We report the analytical validation processes for the next-generation sequencing (NGS) assay that was tailored for regulatory compliant use in the trial. The Oncomine Cancer Panel assay and the Personal Genome Machine were used in four networked laboratories accredited for the Clinical Laboratory Improvement Amendments...
February 3, 2017: Journal of Molecular Diagnostics: JMD
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