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https://www.readbyqxmd.com/read/29627417/biofilm-development-of-bacillus-thuringiensis-on-mwcnt-buckypaper-adsorption-synergic-biodegradation-of-phenanthrene
#1
Abhrajyoti Tarafdar, Tarun Kanti Sarkar, Sourav Chakraborty, Alok Sinha, Reginald E Masto
Adsorption-synergic biodegradation of a model PAH (phenanthrene, Phe) on MWCNT buckypaper surface with a potential PAH biodegrading bacterial strain Bacillus thuringiensis AT.ISM.11 has been studied in aqueous medium. Adsorption of Phe on buckypaper follows Dubinin-Ashtakhov model (R2 = 0.9895). MWCNT generally exerts toxicity to microbes but adsorbed layer of Phe prevents the direct contact between MWCNT and bacterial cell wall. FESEM study suggests that formation of biofilms occurred on buckypaper. Lower layer cells are disrupted and flattened as they are in direct contact with MWCNT but the upper layer cells of the developed biofilm are fully intact and functional...
April 5, 2018: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/29606715/a-call-for-a-new-ism-in-pharmacy
#2
Therese I Poirier, Connie Stamper-Carr
No abstract text is available yet for this article.
March 2018: American Journal of Pharmaceutical Education
https://www.readbyqxmd.com/read/29605515/motors-of-influenza-vaccination-uptake-and-vaccination-advocacy-in-healthcare-workers-a-comparative-study-in-six-european-countries
#3
George Kassianos, Ernest Kuchar, Aneta Nitsch-Osuch, Jan Kyncl, Andrey Galev, Isme Humolli, Oana Falup-Pecurariu, Angus Thomson, Christina Klein, Gaëlle Vallée-Tourangeau
BACKGROUND: Annual vaccination is the most effective way to prevent and control the health and economic burden caused by seasonal influenza. Healthcare workers (HCWs) play a crucial role in vaccine acceptance and advocacy for their patients. This study explored the drivers of HCWs' vaccine acceptance and advocacy in six European countries. METHODS: Healthcare workers (mainly general practitioners, specialist physicians, and nurses) voluntarily completed a questionnaire in Bulgaria (N = 485), Czech Republic (N = 518), Kosovo (N = 466), Poland (N = 772), Romania (N = 155), and the United Kingdom (N = 80)...
March 28, 2018: Vaccine
https://www.readbyqxmd.com/read/29599428/temperature-and-monsoon-tango-in-a-tropical-stalagmite-last-glacial-interglacial-climate-dynamics
#4
Carme Huguet, Joyanto Routh, Susanne Fietz, Mahjoor Ahmad Lone, M S Kalpana, Prosenjit Ghosh, Augusto Mangini, Vikash Kumar, Ravi Rangarajan
High-resolution paleoclimate data on stable isotopes in a stalagmite were coupled to glycerol dialkyl glycerol tetraethers (GDGTs). The Indian Summer Monsoon (ISM) transitioned from limited rainfall during the Last Glacial Maximum (LGM) to intense precipitation during early Holocene (22 to 6 ka). This was associated with changes in stalagmite growth, abundance of branched (br) and isoprenoid (iso) GDGTs, as well as δ18 O, δ13 C, Sr/Ca and GDGT-derived signals providing both temperature and moisture information...
March 29, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29584658/a-robust-real-time-direction-of-arrival-estimation-method-for-sequential-movement-events-of-vehicles
#5
Huawei Liu, Baoqing Li, Xiaobing Yuan, Qianwei Zhou, Jingchang Huang
Parameters estimation of sequential movement events of vehicles is facing the challenges of noise interferences and the demands of portable implementation. In this paper, we propose a robust direction-of-arrival (DOA) estimation method for the sequential movement events of vehicles based on a small Micro-Electro-Mechanical System (MEMS) microphone array system. Inspired by the incoherent signal-subspace method (ISM), the method that is proposed in this work employs multiple sub-bands, which are selected from the wideband signals with high magnitude-squared coherence to track moving vehicles in the presence of wind noise...
March 27, 2018: Sensors
https://www.readbyqxmd.com/read/29560448/comparative-experimental-studies-on-trypanosoma-isolates-in-mice-and-response-to-diminazene-aceturate-and-isometamidium-chloride-treatment
#6
Muluken Yayeh, Shimelis Dagnachew, Meseret Tilahun, Achenef Melaku, Tadegegn Mitiku, Mohamed Yesuf, Zewdu Seyoum, Habtamu Kefyalew
The current study was undertaken from December 2015 to May 2016 with the aim of determining and comparing the pathogenicity and response to diminazene aceturate (DA) and isometamidium chloride (ISM) treatment in experimentally infected mice with trypanosome isolates from Jawi and Birsheleko areas of northwest Ethiopia. A total of 42 mice were used for the experiment. These mice were randomly assigned in to 7 groups of 6 mice per group. Three of the groups (Group 1, 4 and 5) were inoculated with trypanosome isolated from Jawi and three other groups (Group-2, 6 and 7) were inoculated with trypanosome isolated from Birsheleko and the remaining one group (Group 3) was negative control...
February 2018: Heliyon
https://www.readbyqxmd.com/read/29541718/adsorption-of-pahs-on-interstellar-ice-viewed-by-classical-molecular-dynamics
#7
Eric Michoulier, Jennifer A Noble, Aude Simon, Joëlle Mascetti, Céline Toubin
Polycyclic Aromatic Hydrocarbons (PAHs) are a family of molecules which represent the best candidates to explain the observation of one set of features in the Interstellar Medium (ISM): the Aromatic Interstellar Bands (AIBs). They could also contribute to the Diffuse Interstellar Bands (DIBs). In dense molecular clouds, PAHs may condense onto interstellar grains, contributing to the complex chemistry occurring in their icy mantles, composed essentially of water. In this context, the adsorption of various aromatic molecules, from benzene to ovalene, on different ices - both amorphous and crystalline - is investigated by means of classical molecular dynamics simulations...
March 15, 2018: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/29537265/adsorption-of-methylamine-on-amorphous-ice-under-interstellar-conditions-a-grand-canonical-monte-carlo-simulation-study
#8
Reka Horvath, Gyorgy Hantal, Sylvain Picaud, Milán Szőri, Pal Jedlovszky
The adsorption of methylamine at the surface of amorphous ice is studied at various temperatures, ranging from 20 K to 200 K, by grand canonical Monte Carlo simulations under conditions that are characteristic to the interstellar medium (ISM). The results are also compared with those obtained earlier on crystalline (Ih) ice. We found that methylamine has a strong ability of being adsorbed on amorphous ice, involving also multilayer adsorption. The decrease of the temperature leads to a substantial increase of this adsorption ability, thus, considerable adsorption is seen at 20-50 K even at bulk gas phase concentrations that are comparable with that of the ISM...
March 14, 2018: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/29532132/optimization-of-field-and-laboratory-sample-processing-for-characterization-of-metallic-residues-at-military-training-ranges
#9
J L Clausen, T Georgian, K H Gardner, T A Douglas
Military ranges are unlike many waste sites because the contaminants, both energetics and metals, are heterogeneously distributed in soil during explosive detonation or ballistic impact and cannot be readily characterized using conventional grab sampling. The Incremental Sampling Methodology (ISM) has been successful for characterization of energetic contamination in soils, but no published ISM processing studies for soils with small arms range metals such as Pb, Cu, Sb, and Zn exists. This study evaluated several ISM sample-processing steps: (1) field splitting to reduce the sample mass shipped to the analytical laboratory, (2) necessity of milling, and (3) processing a larger subsample mass for digestion in lieu of milling...
March 12, 2018: Bulletin of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/29468005/assessment-of-trained-hand-hygiene-observers-using-parallel-observations
#10
Humberto Guanche Garcell, Ariadna Villanueva Arias, Isme Borroto Garcés, Alexis Cardoso Gil, Pedro Rivero Companioni, Katiana Figueredo Arias, Osiris I Escobar More, Norgely Rivero Rodríguez, Francisco Gutierrez García
Objectives: To validate hand hygiene (HH) observers following training and determine the concordance between the observers and the Kappa index. Methods: This study was conducted during June 2017. HH observers from 15 hospital units received eight-hours training including a two-hour workshop conducted by the infection control practitioner and hospital epidemiologist. After its completion, parallel observations were conducted by trained nurses from each respective unit for a maximum of 20 minutes per session at any time or day...
January 2018: Oman Medical Journal
https://www.readbyqxmd.com/read/29463509/ventricular-fibrillation-conversion-testing-after-implantation-of-a-subcutaneous-implantable-cardioverter-defibrillator-a-report-from-the-national-cardiovascular-data-registry
#11
Daniel J Friedman, Craig S Parzynski, E Kevin Heist, Andrea M Russo, Joseph G Akar, James V Freeman, Jeptha P Curtis, Sana M Al-Khatib
Background -Compared to transvenous (TV) implantable cardioverter defibrillators (ICD), subcutaneous (S) ICDs require a higher energy for effective defibrillation. Although ventricular fibrillation (VF) conversion testing (CT) is recommended after S-ICD implantation to ensure an adequate margin between the defibrillation threshold and maximum device output (80J), prior work found that adherence to this recommendation is declining. Methods -We studied first time S-ICD recipients (between September 28, 2012 and April 1, 2016) in the National Cardiovascular Database Registry ICD Registry to determine: predictors of use of CT, predictors of an insufficient safety margin (ISM, defined as VF conversion energy >65J) during testing, and in-hospital outcomes associated with use of CT...
February 20, 2018: Circulation
https://www.readbyqxmd.com/read/29441493/model-based-economic-evaluation-of-treatments-for-depression-a-systematic-literature-review
#12
REVIEW
Spyros Kolovos, Judith E Bosmans, Heleen Riper, Karine Chevreul, Veerle M H Coupé, Maurits W van Tulder
BACKGROUND: An increasing number of model-based studies that evaluate the cost effectiveness of treatments for depression are being published. These studies have different characteristics and use different simulation methods. OBJECTIVE: We aimed to systematically review model-based studies evaluating the cost effectiveness of treatments for depression and examine which modelling technique is most appropriate for simulating the natural course of depression. METHODS: The literature search was conducted in the databases PubMed, EMBASE and PsycInfo between 1 January 2002 and 1 October 2016...
September 2017: PharmacoEconomics Open
https://www.readbyqxmd.com/read/29435387/systemic-mastocytosis-the-difficult-patient-with-a-rare-disease-case-presentation-and-brief-review
#13
Daniel H Desmond, Mark G Carmichael
Mastocytosis is a rare process involving the activation and accumulation of clonal mast cells categorized by cutaneous or systemic involvement. Although the diagnosis of cutaneous disease can be straightforward and confirmed via skin biopsy, systemic disease mimics more common disease processes making diagnosis a challenge. The widespread physiologic distribution of mast cells causes a variety of symptoms with aberrant expression including fatigue, headache, depression, dyspnea, dyspepsia, nausea, and abdominal pain...
February 2018: Hawai'i Journal of Medicine & Public Health: a Journal of Asia Pacific Medicine & Public Health
https://www.readbyqxmd.com/read/29417104/gas-phase-kinetics-of-the-oh-ch3ch2oh-reaction-at-temperatures-of-the-interstellar-medium-t-21-107-k
#14
A J Ocaña, S Blázquez, B Ballesteros, A Canosa, M Antiñolo, J Albaladejo, E Jiménez
Ethanol, CH3CH2OH, has been unveiled in the interstellar medium (ISM) by radioastronomy and it is thought to be released into the gas phase after the warm-up phase of the grain surface, where it is formed. Once in the gas phase, it can be destroyed by different reactions with atomic and radical species, such as hydroxyl (OH) radicals. The knowledge of the rate coefficients of all these processes at temperatures of the ISM is essential in the accurate interpretation of the observed abundances. In this work, we have determined the rate coefficient for the reaction of OH with CH3CH2OH (k(T)) between 21 and 107 K by employing the pulsed and continuous CRESU (Cinétique de Réaction en Ecoulement Supersonique Uniforme, which means Reaction Kinetics in a Uniform Supersonic Flow) technique...
February 8, 2018: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/29395131/a-new-continuous-sliding-mode-control-approach-with-actuator-saturation-for-control-of-2-dof-helicopter-system
#15
S P Sadala, B M Patre
The 2-degree of freedom (DOF) helicopter system is a typical higher-order, multi-variable, nonlinear and strong coupled control system. The helicopter dynamics also includes parametric uncertainties and is subject to unknown external disturbances. Such complicated system requires designing a sophisticated control algorithm that can handle these difficulties. This paper presents a new robust control algorithm which is a combination of two continuous control techniques, composite nonlinear feedback (CNF) and super-twisting control (STC) methods...
January 30, 2018: ISA Transactions
https://www.readbyqxmd.com/read/29382740/a-plastidial-pantoate-transporter-with-a-potential-role-in-pantothenate-synthesis
#16
Lili Huang, Michal Pyc, Saleh Alseekh, Donald R McCarty, Valérie de Crécy-Lagard, Jesse F Gregory, Christopher S Henry, Alisdair R Fernie, Robert T Mullen, Andrew D Hanson
The pantothenate (vitamin B5) synthesis pathway in plants is not fully defined because the sub-cell-ular site of its ketopantoate → pantoate reduction step is unclear. However, the pathway is known to be split between cytosol, mit-o-chondria, and potentially plastids, and inferred to involve mitochondrial or plast-idial transport of ketopantoate or pantoate. No proteins that mediate these transport steps have been identified. Compar-at-ive genomic and transcriptomic analyses identified Arabidopsis thal-iana BASS1 (At1g78560) and its maize ( Zea mays ) ortholog as candidates for such a transport role...
January 30, 2018: Biochemical Journal
https://www.readbyqxmd.com/read/29349743/chemically-and-size-resolved-particulate-matter-dry-deposition-on-stone-and-surrogate-surfaces-inside-and-outside-the-low-emission-zone-of-milan-application-of-a-newly-developed-deposition-box
#17
Luca Ferrero, Marco Casati, Lara Nobili, Luca D'Angelo, Grazia Rovelli, Giorgia Sangiorgi, Cristiana Rizzi, Maria Grazia Perrone, Antonio Sansonetti, Claudia Conti, Ezio Bolzacchini, Elena Bernardi, Ivano Vassura
The collection of atmospheric particles on not-filtering substrates via dry deposition, and the subsequent study of the particle-induced material decay, is trivial due to the high number of variables simultaneously acting on the investigated surface. This work reports seasonally resolved data of chemical composition and size distribution of particulate matter deposed on stone and surrogate surfaces obtained using a new method, especially developed at this purpose. A "Deposition Box" was designed allowing the particulate matter dry deposition to occur selectively removing, at the same time, variables that can mask the effect of airborne particles on material decay...
April 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29341334/incidence-and-prognostic-impact-of-cytogenetic-aberrations-in-patients-with-systemic-mastocytosis
#18
Nicole Naumann, Mohamad Jawhar, Juliana Schwaab, Sebastian Kluger, Johannes Lübke, Georgia Metzgeroth, Henning D Popp, Nada Khaled, Hans-Peter Horny, Karl Sotlar, Peter Valent, Claudia Haferlach, Gudrun Göhring, Brigitte Schlegelberger, Manja Meggendorfer, Wolf-Karsten Hofmann, Nicholas C P Cross, Andreas Reiter, Alice Fabarius
The clinical behavior of systemic mastocytosis (SM) is strongly associated with activating mutations in KIT (D816V in >80% of cases), with the severity of the phenotype influenced by additional somatic mutations, e.g. in SRSF2, ASXL1 or RUNX1. Complex molecular profiles are frequently associated with the presence of an associated hematologic neoplasm (AHN) and an unfavorable clinical outcome. However, little is known about the incidence and prognostic impact of cytogenetic aberrations. We analyzed cytogenetic and molecular characteristics of 109 patients (KIT D816V+, n=102, 94%) with indolent (ISM, n=26) and advanced SM (n=83) with (n=73, 88%) or without AHN...
January 17, 2018: Genes, Chromosomes & Cancer
https://www.readbyqxmd.com/read/29337546/a-mitochondria-specific-fluorescent-probe-for-visualizing-endogenous-hydrogen-cyanide-fluctuations-in-neurons
#19
Lingliang Long, Meiyu Huang, Ning Wang, Yanjun Wu, Kun Wang, Aihua Gong, Zhijian Zhang, Jonathan L Sessler
An ability to visualize HCN in mitochondria in real time may permit additional insights into the critical toxicological and physiological roles this classic toxin plays in living organisms. Herein, we report a mitochondria-specific coumarin pyrrolidinium-derived fluorescence probe (MRP1) that permits the real-time ratiometric imaging of HCN in living cells. The response is specific, sensitive (detection limit is ca. 65.6 nM), rapid (within 1 s), and reversible. Probe MRP1 contains a benzyl chloride subunit designed to enhance retention within the mitochondria under conditions where the mitochondria membrane potential is eliminated...
February 7, 2018: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/29331029/characterization-of-cd34-hematopoietic-cells-in-systemic-mastocytosis-potential-role-in-disease-dissemination
#20
A Mayado, C Teodosio, N Dasilva-Freire, M Jara-Acevedo, A C Garcia-Montero, I Álvarez-Twose, L Sánchez-Muñoz, A Matito, C Caldas, J I Muñoz-González, A Henriques, J I Sánchez-Gallego, L Escribano, A Orfao
BACKGROUND: Recent studies show that most systemic mastocytosis (SM) patients, including indolent SM (ISM) with (ISMs+) and without skin lesions (ISMs-), carry the KIT D816V mutation in PB leukocytes. We investigated the potential association between the degree of involvement of BM hematopoiesis by the KIT D816V mutation and the distribution of different maturation-associated compartments of bone marrow (BM) and peripheral blood (PB) CD34+ hematopoietic precursors (HPC) in ISM and identified the specific PB cell compartments that carry this mutation...
January 13, 2018: Allergy
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