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https://www.readbyqxmd.com/read/28708840/index-extraction-for-electromagnetic-field-evaluation-of-high-power-wireless-charging-system
#1
SangWook Park
This paper presents the precise dosimetry for highly resonant wireless power transfer (HR-WPT) system using an anatomically realistic human voxel model. The dosimetry for the HR-WPT system designed to operate at 13.56 MHz frequency, which one of the ISM band frequency band, is conducted in the various distances between the human model and the system, and in the condition of alignment and misalignment between transmitting and receiving circuits. The specific absorption rates in the human body are computed by the two-step approach; in the first step, the field generated by the HR-WPT system is calculated and in the second step the specific absorption rates are computed with the scattered field finite-difference time-domain method regarding the fields obtained in the first step as the incident fields...
2017: PloS One
https://www.readbyqxmd.com/read/28708127/an-active-bacterial-community-linked-to-high-chl-a-concentrations-in-antarctic-winter-pack-ice-and-evidence-for-the-development-of-an-anaerobic-sea-ice-bacterial-community
#2
Eeva Eronen-Rasimus, Anne-Mari Luhtanen, Janne-Markus Rintala, Bruno Delille, Gerhard Dieckmann, Antti Karkman, Jean-Louis Tison
Antarctic sea-ice bacterial community composition and dynamics in various developmental stages were investigated during the austral winter in 2013. Thick snow cover likely insulated the ice, leading to high (<4 μg l(-1)) chlorophyll-a (chl-a) concentrations and consequent bacterial production. Typical sea-ice bacterial genera, for example, Octadecabacter, Polaribacter and Glaciecola, often abundant in spring and summer during the sea-ice algal bloom, predominated in the communities. The variability in bacterial community composition in the different ice types was mainly explained by the chl-a concentrations, suggesting that as in spring and summer sea ice, the sea-ice bacteria and algae may also be coupled during the Antarctic winter...
July 14, 2017: ISME Journal
https://www.readbyqxmd.com/read/28703952/potential-of-bacteriocins-from-lab-to-improve-microbial-quality-of-dry-cured-and-fermented-meat-products
#3
Paulina Kęska, Joanna Stadnik, Dorota Zielińska, Danuta Kołożyn-Krajewska
Meat and meat products are an important component of the daily diet. Nevertheless, they are perishable goods and are prone to microbial contamination, which leads to an increased risk to the health of consumers as well as economic losses in the meat industry. Fermentation has been used for thousands of years to preserve meat. As a result of extensive biochemical reactions occurring in meat during fermentation and ripening, the condi- tions inhibiting the growth of pathogenic and spoilage bacteria are formed...
April 2017: Acta Scientiarum Polonorum. Technologia Alimentaria
https://www.readbyqxmd.com/read/28696425/microbial-survival-strategies-in-ancient-permafrost-insights-from-metagenomics
#4
Rachel Mackelprang, Alexander Burkert, Monica Haw, Tara Mahendrarajah, Christopher H Conaway, Thomas A Douglas, Mark P Waldrop
In permafrost (perennially frozen ground) microbes survive oligotrophic conditions, sub-zero temperatures, low water availability and high salinity over millennia. Viable life exists in permafrost tens of thousands of years old but we know little about the metabolic and physiological adaptations to the challenges presented by life in frozen ground over geologic time. In this study we asked whether increasing age and the associated stressors drive adaptive changes in community composition and function. We conducted deep metagenomic and 16 S rRNA gene sequencing across a Pleistocene permafrost chronosequence from 19 000 to 33 000 years before present (kyr)...
July 11, 2017: ISME Journal
https://www.readbyqxmd.com/read/28696424/phenotypic-and-genotypic-richness-of-denitrifiers-revealed-by-a-novel-isolation-strategy
#5
Pawel Lycus, Kari Lovise Bøthun, Linda Bergaust, James Peele Shapleigh, Lars Reier Bakken, Åsa Frostegård
Present-day knowledge on the regulatory biology of denitrification is based on studies of selected model organisms. These show large variations in their potential contribution to NO2(-), NO, and N2O accumulation, attributed to lack of genes coding for denitrification reductases, but also to variations in their transcriptional regulation, as well as to post-transcriptional phenomena. To validate the relevance of these observations, there is a need to study a wider range of denitrifiers. We designed an isolation protocol that identifies all possible combinations of truncated denitrification chains (NO3(-)/NO2(-)/NO/N2O/N2)...
July 11, 2017: ISME Journal
https://www.readbyqxmd.com/read/28696423/optimised-chronic-infection-models-demonstrate-that-siderophore-cheating-in-pseudomonas-aeruginosa-is-context-specific
#6
Freya Harrison, Alan McNally, Ana C da Silva, Stephan Heeb, Stephen P Diggle
The potential for siderophore mutants of Pseudomonas aeruginosa to attenuate virulence during infection, and the possibility of exploiting this for clinical ends, have attracted much discussion. This has largely been based on the results of in vitro experiments conducted in iron-limited growth medium, in which siderophore mutants act as social 'cheats:' increasing in frequency at the expense of the wild type to result in low-productivity, low-virulence populations dominated by mutants. We show that insights from in vitro experiments cannot necessarily be transferred to infection contexts...
July 11, 2017: ISME Journal
https://www.readbyqxmd.com/read/28696422/metagenomic-binning-of-a-marine-sponge-microbiome-reveals-unity-in-defense-but-metabolic-specialization
#7
Beate M Slaby, Thomas Hackl, Hannes Horn, Kristina Bayer, Ute Hentschel
Marine sponges are ancient metazoans that are populated by distinct and highly diverse microbial communities. In order to obtain deeper insights into the functional gene repertoire of the Mediterranean sponge Aplysina aerophoba, we combined Illumina short-read and PacBio long-read sequencing followed by un-targeted metagenomic binning. We identified a total of 37 high-quality bins representing 11 bacterial phyla and two candidate phyla. Statistical comparison of symbiont genomes with selected reference genomes revealed a significant enrichment of genes related to bacterial defense (restriction-modification systems, toxin-antitoxin systems) as well as genes involved in host colonization and extracellular matrix utilization in sponge symbionts...
July 11, 2017: ISME Journal
https://www.readbyqxmd.com/read/28691799/solid-contact-ph-sensor-without-co2-interference-with-a-super-hydrophobic-pedot-c14-as-solid-contact-the-ultimate-water-layer-test
#8
Marcin Guzinski, Jennifer Marie Jarvis, Paul D'Orazio, Anahita Izadyar, Bradford D Pendley, Erno Lindner
The aim of this study was to find a conducting polymer-based solid contact (SC) for ion-selective electrodes (ISEs) that could appeal to become the ultimate, generally applicable SC, which in combination with all kinds of ion-selective membranes (ISMs) would match the performance characteristics of conventional ISEs. We present data collected with electrodes utilizing PEDOT-C14, a highly hydrophobic derivative of poly(3,4-ethylenedioxythiophene), PEDOT, as SC and compare its performance characteristics with PEDOT-based SC ISEs...
July 10, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28678732/does-fine-needle-aspiration-microbiology-offer-any-benefit-over-wound-swab-in-detecting-the-causative-organisms-in-surgical-site-infections
#9
Sundaramurthi Sudharsanan, Sreenath Gs, Sathasivam Sureshkumar, Chellappa Vijayakumar, Sistla Sujatha, Vikram Kate
OBJECTIVE: The objective of this study is to determine the role of ne needle aspiration microbiology (FNAM) in detecting the causative organisms of postoperative surgical site infections (SSIs) in comparison with the standard technique of surface swabbing. Ma- terials and Methods. In this study, 150 patients with SSIs following elective and emergency operations were included. In all patients, FNAM was performed along with conventional surface swabbing to identify the causative microorganism...
June 28, 2017: Wounds: a Compendium of Clinical Research and Practice
https://www.readbyqxmd.com/read/28673596/intra-spinal-microstimulation-may-alleviate-chronic-pain-after-spinal-cord-injury
#10
Bin Shu, Fei Yang, Yun Guan
Chronic pain after spinal cord injury (SCI) is a form of central neuropathic pain that is debilitating and often refractory to current pharmacological treatments. Neurostimulation pain therapies, such as epidural spinal cord stimulation, have only moderate success in reducing SCI pain. The pathogenesis of SCI pain may involve a state of central neuronal hyperexcitability, especially in the spinal cord dorsal horn, that develops after injury. We hypothesize that the neuronal structures near the spinal cord injury site may be an important pain generator, and intraspinal microstimulation (ISMS) may normalize dorsal horn neuronal hyperexcitability and hence alleviate SCI pain...
July 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/28662814/preface-25th-international-symposia-on-morphological-science-isms-2017
#11
EDITORIAL
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No abstract text is available yet for this article.
July 2017: Annals of Anatomy, Anatomischer Anzeiger: Official Organ of the Anatomische Gesellschaft
https://www.readbyqxmd.com/read/28662309/omalizumab-prevents-anaphylaxis-and-improves-symptoms-in-systemic-mastocytosis-efficacy-and-safety-observations
#12
Sigurd Broesby-Olsen, Hanne Vestergaard, Charlotte Gotthard Mortz, Britt Jensen, Troels Havelund, Anne Pernille Hermann, Frank Siebenhaar, Michael Boe Møller, Thomas Kielsgaard Kristensen, Carsten Bindslev-Jensen
BACKGROUND: Patients with systemic mastocytosis (SM) may suffer from mast cell (MC) mediator-related symptoms insufficiently controlled by conventional therapy. Omalizumab is an established treatment in other MC-driven diseases, but experiences in SM are limited. OBJECTIVE: To assess the efficacy and safety of omalizumab in SM. METHODS: In our patient cohort we evaluated all SM patients treated with omalizumab. A physician global assessment of type and severity of symptoms was performed at baseline, at 3 and 6 months and at latest follow-up...
June 29, 2017: Allergy
https://www.readbyqxmd.com/read/28644444/energy-and-carbon-metabolisms-in-a-deep-terrestrial-subsurface-fluid-microbial-community
#13
Lily Momper, Sean P Jungbluth, Michael D Lee, Jan P Amend
The terrestrial deep subsurface is a huge repository of microbial biomass, but in relation to its size and physical heterogeneity, few sites have been investigated in detail. Here, we applied a culture-independent metagenomic approach to characterize the microbial community composition in deep (1500 meters below surface) terrestrial fluids. Samples were collected from a former gold mine in Lead, South Dakota, USA, now Sanford Underground Research Facility (SURF). We reconstructed 74 genomes from metagenomes (MAGs), enabling the identification of common metabolic pathways...
June 23, 2017: ISME Journal
https://www.readbyqxmd.com/read/28644443/unexpected-genomic-features-in-widespread-intracellular-bacteria-evidence-for-motility-of-marine-chlamydiae
#14
Astrid Collingro, Stephan Köstlbacher, Marc Mussmann, Ramunas Stepanauskas, Steven J Hallam, Matthias Horn
Chlamydiae are obligate intracellular bacteria comprising important human pathogens and symbionts of protists. Molecular evidence indicates a tremendous diversity of chlamydiae particularly in marine environments, yet our current knowledge is based mainly on terrestrial representatives. Here we provide first insights into the biology of marine chlamydiae representing three divergent clades. Our analysis of single-cell amplified genomes revealed hallmarks of the chlamydial lifestyle, supporting the ancient origin of their characteristic developmental cycle and major virulence mechanisms...
June 23, 2017: ISME Journal
https://www.readbyqxmd.com/read/28644442/linking-the-development-and-functioning-of-a-carnivorous-pitcher-plant-s-microbial-digestive-community
#15
David W Armitage
Ecosystem development theory predicts that successional turnover in community composition can influence ecosystem functioning. However, tests of this theory in natural systems are made difficult by a lack of replicable and tractable model systems. Using the microbial digestive associates of a carnivorous pitcher plant, I tested hypotheses linking host age-driven microbial community development to host functioning. Monitoring the yearlong development of independent microbial digestive communities in two pitcher plant populations revealed a number of trends in community succession matching theoretical predictions...
June 23, 2017: ISME Journal
https://www.readbyqxmd.com/read/28632811/management-of-poorly-controlled-indolent-systemic-mastocytosis-using-narrowband-uvb-phototherapy
#16
Zain Husain, Dylan Waterman, Kathleen Ellison, Jennifer A DeSimone
The mastocytoses comprise a group of proliferative stem cell disorders defined by the abnormal accumulation of mast cells (MCs) in the skin or other body tissues including the bone marrow, gastrointestinal tract, and liver. Systemic mastocytosis is defined by the presence of one major and one minor criterion or 3 minor criteria delineated by the World Health Organization (WHO). We present the case of a 57-year-old woman with a 10-year history of red-brown pruritic maculopapular lesions on the upper and lower extremities and trunk who was originally diagnosed with cutaneous mastocytosis...
May 2017: Cutis; Cutaneous Medicine for the Practitioner
https://www.readbyqxmd.com/read/28627727/development-of-hgf-binding-aptamers-with-the-combination-of-g4-promoter-derived-aptamer-selection-and-in-silico-maturation
#17
Tomomi Yokoyama, Kaori Tsukakoshi, Wataru Yoshida, Taiki Saito, Kentaro Teramoto, Nasa Savory, Koichi Abe, Kazunori Ikebukuro
We describe the selection of aptamers based on bioinformatics-based approaches without Systematic Evolution of Ligands by EXponential enrichment (SELEX). SELEX is a potent method; however, it is time intensive and the PCR-amplification step, which is essential step for SELEX, leads to the loss of good aptamers. We have developed an aptamer-screening method, G4 promoter-derived aptamer selection (G4PAS), and an aptamer-improving method, in silico maturation (ISM). They are based on in silico sequence selection and computer assisted directed evolution, respectively...
June 19, 2017: Biotechnology and Bioengineering
https://www.readbyqxmd.com/read/28622287/a-niche-for-cyanobacteria-producing-chlorophyll-f-within-a-microbial-mat
#18
Satoshi Ohkubo, Hideaki Miyashita
Acquisition of additional photosynthetic pigments enables photosynthetic organisms to survive in particular niches. To reveal the ecological significance of chlorophyll (Chl) f, we investigated the distribution of Chl and cyanobacteria within two microbial mats. In a 7-mm-thick microbial mat beneath the running water of the Nakabusa hot spring, Japan, Chl f was only distributed 4.0-6.5 mm below the surface, where the intensity of far-red light (FR) was higher than that of photosynthetically active radiation (PAR)...
June 16, 2017: ISME Journal
https://www.readbyqxmd.com/read/28589305/discriminating-ability-of-abbreviated-impactor-measurement-approach-aim-to-detect-changes-in-mass-median-aerodynamic-diameter-mmad-of-an-albuterol-salbutamol-pmdi-aerosol
#19
J David Christopher, Rajni B Patel, Jolyon P Mitchell, Terrence P Tougas, Adrian P Goodey, Jorge Quiroz, Patrik U Andersson, Svetlana Lyapustina
This article reports on results from a two-lab, multiple impactor experiment evaluating the abbreviated impactor measurement (AIM) concept, conducted by the Cascade Impaction Working Group of the International Pharmaceutical Aerosol Consortium on Regulation and Science (IPAC-RS). The goal of this experiment was to expand understanding of the performance of an AIM-type apparatus based on the Andersen eight-stage non-viable cascade impactor (ACI) for the assessment of inhalation aerosols and sprays, compared with the full-resolution version of that impactor described in the pharmacopeial compendia...
June 6, 2017: AAPS PharmSciTech
https://www.readbyqxmd.com/read/28589122/the-future-of-bronchopulmonary-dysplasia-emerging-pathophysiological-concepts-and-potential-new-avenues-of-treatment
#20
REVIEW
Jennifer J P Collins, Dick Tibboel, Ismé M de Kleer, Irwin K M Reiss, Robbert J Rottier
Yearly more than 15 million babies are born premature (<37 weeks gestational age), accounting for more than 1 in 10 births worldwide. Lung injury caused by maternal chorioamnionitis or preeclampsia, postnatal ventilation, hyperoxia, or inflammation can lead to the development of bronchopulmonary dysplasia (BPD), one of the most common adverse outcomes in these preterm neonates. BPD patients have an arrest in alveolar and microvascular development and more frequently develop asthma and early-onset emphysema as they age...
2017: Frontiers in Medicine
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