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https://www.readbyqxmd.com/read/28641352/-do-general-surgeons-feel-adequately-prepared-for-the-complex-questions-associated-with-the-handling-of-multi-resistant-pathogens-results-of-the-mr2-survey
#1
Matthias May, Philipp J Spachmann, Steffen Lebentrau, Harald Schumacher, Christian Gilfrich, Hans-Martin Fritsche, Malte Vetterlein, Sabine Brookman-May, Martin Schostak, Florian M Wagenlehner, Maximilian Burger, Alexander Novotny, Robert Obermaier
Background At the present time, there is no evidence available as to the knowledge of general surgeons regarding multi-resistant pathogens (MRP) and the rational use of antibiotic medication (antibiotic stewardship/ABS) compared with physicians from other disciplines. Methods As part of the MR2 survey (Multiinstitutional Reconnaissance of practice with MultiResistant bacteria - a survey focussing on German hospitals), a questionnaire comprising 4 + 35 items was distributed to urologists, internists, gynaecologists and general surgeons in 18 hospitals...
June 2017: Zentralblatt Für Chirurgie
https://www.readbyqxmd.com/read/28641319/understanding-scuba-diving-fatalities-carbon-dioxide-concentrations-in-intra-cardiac-gas
#2
Vincent Varlet, Alejandro Dominguez, Marc Augsburger, Maisy Lossois, Coraline Egger, Cristian Palmiere, Raquel Vilarino, Silke Grabherr
INTRODUCTION: Important developments in the diagnosis of scuba diving fatalities have been made thanks to forensic imaging tool improvements. Multi-detector computed tomography (MDCT) permits reliable interpretation of the overall gaseous distribution in the cadaver. However, due to post-mortem delay, the radiological interpretation is often doubtful because the distinction between gas related to the dive and post-mortem decomposition artifactual gases becomes less obvious. METHODS: We present six cases of fatal scuba diving showing gas in the heart and other vasculature...
June 2017: Diving and Hyperbaric Medicine: the Journal of the South Pacific Underwater Medicine Society
https://www.readbyqxmd.com/read/28641301/fluoride-in-dental-biofilm-varies-across-intra-oral-regions
#3
Line Staun Larsen, Vibeke Baelum, Livia Maria Andaló Tenuta, Alan Richards, Bente Nyvad
Information on differences in biofilm fluoride concentration across intra-oral regions may help explain the distribution of caries within the dentition. The aim of this cross-sectional study was to describe the fluoride concentration in saliva and in biofilm fluid and biofilm solids across 6 intra-oral regions. Unstimulated whole saliva was collected from 42 participants and biofilm harvested from the buccal sites in the 4 molar and 2 anterior regions. Samples were collected at least 1 h after use of fluoride dentifrice...
June 23, 2017: Caries Research
https://www.readbyqxmd.com/read/28641272/aggregation-analysis-for-competitive-multiagent-systems-with-saddle-points-via-switching-strategies
#4
Liying Zhu, Zhengrong Xiang
This paper addresses the aggregation issues of competitive multiagent systems (CMASs) consisting of competitive agents with multimodes and saddle points. In such CMASs, due to existing mutual competitions, every agent is equipped with finite multimodes, and every mode in any agent is described as a second-order linear time-invariant (LTI) control system. When the origin is the same saddle point of all modes of agents, to investigate aggregation of the CMASs with switching strategies, we first use switched LTI systems with saddle points to formulate such CMASs...
June 16, 2017: IEEE Transactions on Neural Networks and Learning Systems
https://www.readbyqxmd.com/read/28641269/a-model-based-tool-for-the-analysis-and-design-of-gene-regulatory-network
#5
Liliana Ironi, Ettore Lanzarone
Computational and mathematical models have significantly contributed to the rapid progress in the study of gene regulatory networks (GRN), but researchers still lack a reliable model-based framework for computer-aided analysis and design. Such tool should both reveal the relation between network structure and dynamics and find parameter values and/or constraints that enable the simulated dynamics to reproduce specific behaviors. This paper addresses these issues and proposes a computational framework that facilitates network analysis or design...
June 19, 2017: IEEE/ACM Transactions on Computational Biology and Bioinformatics
https://www.readbyqxmd.com/read/28641249/eit-imaging-regularization-based-on-spectral-graph-wavelets
#6
Bo Gong, Benjamin Schullcke, Sabine Krueger-Ziolek, Marko Vauhkonen, Gerhard Wolf, Ullrich Mueller-Lisse, Knut Moeller
The objective of Electrical Impedance Tomographic reconstruction is to identify the distribution of tissue conductivity from electrical boundary conditions. This is an ill-posed inverse problem usually solved under the finite element method framework. In previous studies, standard sparse regularization was used for difference EIT to achieve a sparse solution. However, regarding element-wise sparsity, standard sparse regularization interferes with the smoothness of conductivity distribution between neighboring elements and is sensitive to noise...
June 16, 2017: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/28641242/arrhythmia-mechanism-and-scaling-effect-on-the-spectral-properties-of-electroanatomical-maps-with-manifold-harmonics
#7
Margarita Sanroman-Junquera, Inmaculada Mora-Jimenez, Arcadi Garcia-Alberola, Antonio J Caamano, Beatriz Trenor, Jose Luis Rojo-Alvarez
Spatial and temporal processing of intracardiac electrograms provides relevant information to support the arrhythmia ablation during electrophysiological studies. Current Cardiac Navigation Systems (CNS) and Electrocardiographic Imaging (ECGI) build detailed three-dimensional electroanatomical maps (EAM), which represent the spatial anatomical distribution of bioelectrical features, such as activation time or voltage. We present a principled methodology for spectral analysis of both EAM geometry and bioelectrical feature in CNS or ECGI, including their spectral representation, cut-off frequency, or spatial sampling rate (SSR)...
June 15, 2017: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28641230/combining-chemometric-tools-for-assessing-hazard-sources-and-factors-acting-simultaneously-in-contaminated-areas-case-study-mar-piccolo-taranto-south-italy
#8
Matilda Mali, Maria Michela Dell'Anna, Michele Notarnicola, Leonardo Damiani, Piero Mastrorilli
Almost all marine coastal ecosystems possess complex structural and dynamic characteristics, which are influenced by anthropogenic causes and natural processes as well. Revealing the impact of sources and factors controlling the spatial distributions of contaminants within highly polluted areas is a fundamental propaedeutic step of their quality evaluation. Combination of different pattern recognition techniques, applied to one of the most polluted Mediterranean coastal basin, resulted in a more reliable hazard assessment...
June 13, 2017: Chemosphere
https://www.readbyqxmd.com/read/28641227/presence-distribution-and-risk-assessment-of-polycyclic-aromatic-hydrocarbons-in-rice-wheat-continuous-cropping-soils-close-to-five-industrial-parks-of-suzhou-china
#9
Yong Li, Ling Long, Jing Ge, Li-Xuan Yang, Jin-Jin Cheng, Ling-Xiang Sun, Changying Lu, Xiang-Yang Yu
Polycyclic aromatic hydrocarbons (PAHs) accumulated in agricultural soils are likely to threaten human health and ecosystem though the food chain, therefore, it is worth to pay more attention to soil contamination by PAHs. In this study, the presence, distribution and risk assessment of 16 priority PAHs in rice-wheat continuous cropping soils close to industrial parks of Suzhou were firstly investigated. The concentrations of the total PAHs ranged from 125.99 ng/g to 796.65 ng/g with an average of 352.94 ng/g...
June 15, 2017: Chemosphere
https://www.readbyqxmd.com/read/28641212/association-of-gene-polymorphisms-of-four-components-of-renin-angiotensin-aldosterone-system-and-preeclampsia-in-south-african-black-women
#10
M Aung, T Konoshita, J Moodley, P Gathiram
OBJECTIVE: To investigate the association of the gene polymorphisms of: angiotensinogen (AGT), renin (REN), angiotensin II receptor 1 (AT1R) and angiotensin II receptor 2 (AT2R), in the pathogenesis of PE in South African Black women. METHODOLOGY (STUDY DESIGN): 603 pregnant women; 246 normotensive and 357 with PE (early-onset=187, late-onset=170), were recruited. Each study group was subdivided into HIV infected and uninfected groups. The distribution and frequencies of gene polymorphisms of AGT (M235T), REN (C-5312T), AT1R (A1166C) and AT2R (C3123A) were determined in purified DNA by Real Time Polymerase Chain Reaction...
May 18, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28641202/pathological-narcissism-and-maladaptive-self-regulatory-behaviours-in-a-nationally-representative-sample-of-canadian-men
#11
David Kealy, John S Ogrodniczuk, Simon M Rice, John L Oliffe
Clinical observation has linked externalizing coping strategies such as substance overuse and aggressive behaviours with narcissistic personality dysfunction. This study examined the relationship between pathological narcissism and maladaptive self-regulatory behaviours among Canadian men. An online survey was distributed among a stratified, nationally representative sample of 1000 men from across Canada. The survey included brief self-report measures of pathological narcissism, maladaptive externalizing coping behaviours, and general psychological distress...
June 19, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28641199/influence-of-weight-bearing-visual-feedback-on-movement-symmetry-during-sit-to-stand-task
#12
Sumayeh Abujaber, Federico Pozzi, Joseph Zeni
BACKGROUND: Weight-bearing asymmetry is common in individuals with hip osteoarthritis and after total hip arthroplasty. Including symmetry training to the rehabilitation programs may normalize movement strategies during dynamic tasks. The purpose of this study was to evaluate the immediate influences of real-time visual feedback of weight distribution on the interlimb movement symmetry during the sit-to-stand task, before and after total hip arthroplasty, and to determine whether physical impairments affect the response to visual feedback...
June 8, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28641198/combined-computational-experimental-approach-to-predict-blood-brain-barrier-bbb-permeation-based-on-green-salting-out-thin-layer-chromatography-supported-by-simple-molecular-descriptors
#13
Krzesimir Ciura, Mariusz Belka, Piotr Kawczak, Tomasz Bączek, Michał J Markuszewski, Joanna Nowakowska
The objective of this paper is to build QSRR/QSAR model for predicting the blood-brain barrier (BBB) permeability. The obtained models are based on salting-out thin layer chromatography (SOTLC) constants and calculated molecular descriptors. Among chromatographic methods SOTLC was chosen, since the mobile phases are free of organic solvent. As consequences, there are less toxic, and have lower environmental impact compared to classical reserved phases liquid chromatography (RPLC). During the study three stationary phase silica gel, cellulose plates and neutral aluminum oxide were examined...
June 3, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28641196/c1-c2-alkyl-aminiums-in-urban-aerosols-insights-from-ambient-and-fuel-combustion-emission-measurements-in-the-yangtze-river-delta-region-of-china
#14
Wenchao Shen, Lili Ren, Yi Zhao, Luyu Zhou, Liang Dai, Xinlei Ge, Shaofei Kong, Qin Yan, Honghui Xu, Yujun Jiang, Jun He, Mindong Chen, Huan Yu
We measured low molar-mass alkyl aminiums (methylaminium, dimethylaminium, ethylaminium and diethylaminium) in urban aerosols in the Yangtze River Delta region of eastern China in August 2014 and from November 2015 to May 2016. After examining artifact formation on sample filters, methylaminium, dimethylaminium and ethylaminium concentrations were quantified. The three C1-C2 aminiums exhibited a unimodal size distribution that maximized between 0.56 and 1.0 μm. Their concentrations in PM2.5 were 5.7 ± 3...
June 19, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28641187/multi-criteria-decision-support-system-dss-for-optimal-locations-of-soil-aquifer-treatment-sat-facilities
#15
P Tsangaratos, A Kallioras, Th Pizpikis, E Vasileiou, I Ilia, F Pliakas
Managed Aquifer Recharge is a wide-spread well-established groundwater engineering method which is largely seen as sound and sustainable solution to water scarcity hydrologically sensitive areas, such as the Circum Mediterranean. The process of site selection for the installation of a MAR facility is of paramount importance for the feasibility and effectiveness of the project itself, especially when the facility will include the use of waters of impaired quality as a recharge source, as in the case of Soil-Aquifer-Treatment systems...
June 19, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28641184/estimation-of-u-s-sewer-residence-time-distributions-for-national-scale-risk-assessment-of-down-the-drain-chemicals
#16
Katherine E Kapo, Michael Paschka, Raghu Vamshi, Megan Sebasky, Kathleen McDonough
Sewer residence time (the amount of time a given volume of wastewater resides in a sewer system prior to treatment) can have a significant influence on predictions of environmental fate and transport of wastewater constituents and corresponding risk assessment. In this study, a geographic information systems-based approach for estimating the distribution of sewer residence times for the U.S. was developed using road networks as a spatial proxy for sewer networks. The suitability of the approach was evaluated using case study municipalities, and the approach was subsequently extrapolated to 3422 wastewater treatment facilities of varying size across the U...
June 19, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28641183/size-partitioning-and-mixing-behavior-of-trace-metals-and-dissolved-organic-matter-in-a-south-china-estuary
#17
Wenhao Wang, Min Chen, Laodong Guo, Wen-Xiong Wang
The Jiulong River estuary, located in the southeastern China, suffered from metal pollution due to industrial effluent releases. Mixing of effluent and estuarine water may have significantly affected the size distribution of trace metals and their environmental fate. In the present study, colloidal size distribution of organic matter and selected metals were quantified using asymmetric flow field-flow fractionation (AF4) and ICP-MS. We demonstrated a dominance of dissolved metals in the 1-10kDa fraction, and metals such as Cu, Zn, Ni, Co, Pb, Cd and Mn were mostly regulated by terrestrial fulvic acid...
June 19, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28641177/a-30-year-history-of-mpan-case-from-russia
#18
M Selikhova, E Fedotova, S Wiethoff, L V Schottlaender, S Klyushnikov, S N Illarioshkin, H Houlden
We present a patient with progressive spastic ataxia, with dystonia and anarthria undiagnosed until detailed genetic analysis revealed an MPAN mutation. Highlighting the worldwide MPAN distribution, a 30year history of absent diagnosis and the impact and cost saving of an early but detailed genetic analysis in complex progressive movement disorders, particularly the anarthric NBIA group.
June 2, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28641175/atmospheric-dust-deposition-on-soils-around-an-abandoned-fluorite-mine-hammam-zriba-ne-tunisia
#19
Chaima Djebbi, Fredj Chaabani, Oriol Font, Ignasi Queralt, Xavier Querol
The present study focuses on the eolian dispersion and dust deposition, of major and trace elements in soils in a semi-arid climate, around an old fluorite (CaF2) and barite (BaSO4) mine, located in Hammam Zriba in Northern Tunisia. Ore deposits from this site contain a high amount of metal sulphides constituting heavy metal pollution in the surrounding environment. Samples of waste from the surface of mine tailings and agricultural topsoil samples in the vicinity of the mine were collected. The soil samples and a control sample from unpolluted area, were taken in the direction of prevailing northwest and west winds...
June 19, 2017: Environmental Research
https://www.readbyqxmd.com/read/28641151/%C3%AE-tip-aquaporin-distribution-and-size-tonoplast-variation-in-storage-cells-of-vicia-faba-cotyledons-at-seed-maturation-and-germination-stages
#20
Emile Béré, Karima Lahbib, Bruno Merceron, Pierrette Fleurat-Lessard, Néziha Ghanem Boughanmi
Vacuoles have been shown to undergo deep modifications in relation to plant developmental stages and in the maintaining the cellular homeostasis. In this context, we studied the variations of the vacuolar membrane size and α-TIP aquaporin distribution at early and advanced seed stages of maturation, germination and embryo growth in Vicia faba cotyledon storage cells.
June 1, 2017: Journal of Plant Physiology
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