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https://www.readbyqxmd.com/read/27922184/europium-iii-and-uranium-vi-complexation-by-natural-organic-matter-nom-effect-of-source
#1
Ralf Kautenburger, Jonas M Sander, Christina Hein
For the safe long-term storage of high level radioactive waste (HLW), detailed information about geo-chemical behavior of radioactive and toxic metal ions under environmental conditions is important. Natural organic matter (NOM) can play a crucial role in the immobilization or mobilization of these metal ions due to its complexation and colloid formation tendency. In this study, the complexation of europium (as chemical homologue of trivalent actinides like americium) and uranium (as main component of HLW) by ten humic acids (HA) from different sources and Suwannee NOM river extract has been analyzed...
December 6, 2016: Electrophoresis
https://www.readbyqxmd.com/read/27919386/donor-s-support-tool-enabling-informed-secondary-use-of-patient-s-biomaterial-and-personal-data
#2
Haridimos Kondylakis, Lefteris Koumakis, Stephanie Hänold, Iheanyi Nwankwo, Nikolaus Forgó, Kostas Marias, Manolis Tsiknakis, Norbert Graf
PURPOSE: Biomedical research is being catalyzed by the vast amount of data rapidly collected through the application of information technologies (IT). Despite IT advances, the methods for involving patients and citizens in biomedical research remain static, paper-based and organized around national boundaries and anachronistic legal frameworks. The purpose of this paper is to study the current practices for obtaining consent for biobanking and the legal requirements for reusing the available biomaterial and data in EU and finally to present a novel tool to this direction enabling the secondary use of data and biomaterial...
January 2017: International Journal of Medical Informatics
https://www.readbyqxmd.com/read/27919291/a-survey-of-straw-use-and-tail-biting-in-swedish-pig-farms-rearing-undocked-pigs
#3
Torun Wallgren, Rebecka Westin, Stefan Gunnarsson
BACKGROUND: Tail biting is a common problem in intensive pig farming, affecting both welfare and production. Although routine tail docking is banned within the EU, it remains a common practice to prevent tail biting. Straw as environmental enrichment has been proposed as an alternative to tail docking, but its effectiveness against tail biting and function in manure handling systems have to be considered. The aim of the study was to survey how pigs with intact tails are raised and how tail biting is handled in Sweden, where tail docking is banned through national legislation...
December 5, 2016: Acta Veterinaria Scandinavica
https://www.readbyqxmd.com/read/27919152/-monitoring-plan-of-environmental-contaminants-in-sheep-milk-from-areas-next-to-an-italian-contaminated-site-named-%C3%A2-aree-industriali-di-porto-torres-e-discarica-di-calancoi%C3%A2-industrial-areas-of-porto-torres-and-landfill-of-calancoi-in-sardinia-region-southern
#4
Francesco Sgarangella, Giuseppe Bitti, Maria Caterina Suelzu, Pietro Desini, Patrizia Piras, Gianuario Fiori, Maurizio Cossu, Giannina Chessa
OBJECTIVES: to assess concentration levels of dioxins, PCBs, and chemical elements in sheep milk produced in areas close to the Italian contaminated site (CS) located in the North-West of Sardinia (Southern Italy), named «Aree industriali di Porto Torres e discarica di Calancoi» (i.e., industrial areas of Porto Torres and landfill of Calancoi). DESIGN: monitoring plan of environmental contaminants on zootechnical productions based on analysis of dioxins, PCBs, heavy metals (Cd, Hg, Pb), and other elements (As, Be, Cr, Ni, Tl , Zn) in sheep bulk milk...
November 2016: Epidemiologia e Prevenzione
https://www.readbyqxmd.com/read/27919007/challenges-in-assignment-of-allosteric-effects-in-cytochrome-p450-catalyzed-substrate-oxidations-to-structural-dynamics-in-the-hemoprotein-architecture
#5
Peter Hlavica
Cytochrome P450s (CYP) represent a superfamily of b-type hemoproteins catalyzing NAD(P)H-dependent oxidative biotransformation of a vast array of natural and xenobiotic compounds. Many eu- and prokaryotic members of this class of monooxygenases display complex non-Michaelis-Menten saturation kinetics, suggestive of homo-/heterotropic cooperativity arising from substrate-/effector-induced allosteric interactions. Here, the paradigm of multiple-ligand occupancy of the catalytic pocket in combination with enzyme oligomerization provides the most favored explanations for the atypical kinetic patterns...
November 25, 2016: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/27918222/prevalence-of-trachoma-in-gambella-region-ethiopia-results-of-three-population-based-prevalence-surveys-conducted-with-the-global-trachoma-mapping-project
#6
Aida Abashawl, Colin Macleod, John Riang, Ferede Mossisa, Michael Dejene, Rebecca Willis, Rebecca M Flueckiger, Alexandre L Pavluck, Addisu Tadesse, Tesfaye Haileselassie Adera, Anthony W Solomon
PURPOSE: In Ethiopia, trachoma is a major public health problem, accounting for 11.5% of all cases of blindness. In Gambella, one of the country's most remote regions, the 2005-2006 National Survey of Blindness, Low Vision and Trachoma estimated a region-level prevalence of active trachoma of 19.1% in those aged 1-9 years. Detailed district or sub-regional level estimates are required to implement interventions. METHODS: Population-based prevalence surveys were carried out following a 2-stage cluster random sampling methodology and Global Trachoma Mapping Project protocols...
December 5, 2016: Ophthalmic Epidemiology
https://www.readbyqxmd.com/read/27917429/a-thermochromic-europium-iii-room-temperature-ionic-liquid-with-thermally-activated-anion-cation-interactions
#7
Bernardo Monteiro, Mani Outis, Hugo Cruz, João Paulo Leal, César A T Laia, Cláudia C L Pereira
We report the first example of an observable and reversible case of thermochromism due to the interaction of an alkylphosphonium (P6,6,6,14)(+) with a β-diketonate (1,1,1,2,2,3,3-heptafluoro-7,7-dimethyloctane-4,6-dionate-fod) of an europium(iii) tetrakis-β-diketonate room temperature ionic liquid. This thermochromism is characterized by the conversion of a light yellow viscous liquid, at room temperature, to a reddish substance close to 80 °C. The reversibility of this optical effect was highlighted by the thermal stability of the Eu(iii) complex...
December 5, 2016: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/27917177/progress-on-optimizing-miscanthus-biomass-production-for-the-european-bioeconomy-results-of-the-eu-fp7-project-optimisc
#8
Iris Lewandowski, John Clifton-Brown, Luisa M Trindade, Gerard C van der Linden, Kai-Uwe Schwarz, Karl Müller-Sämann, Alexander Anisimov, C-L Chen, Oene Dolstra, Iain S Donnison, Kerrie Farrar, Simon Fonteyne, Graham Harding, Astley Hastings, Laurie M Huxley, Yasir Iqbal, Nikolay Khokhlov, Andreas Kiesel, Peter Lootens, Heike Meyer, Michal Mos, Hilde Muylle, Chris Nunn, Mensure Özgüven, Isabel Roldán-Ruiz, Heinrich Schüle, Ivan Tarakanov, Tim van der Weijde, Moritz Wagner, Qingguo Xi, Olena Kalinina
This paper describes the complete findings of the EU-funded research project OPTIMISC, which investigated methods to optimize the production and use of miscanthus biomass. Miscanthus bioenergy and bioproduct chains were investigated by trialing 15 diverse germplasm types in a range of climatic and soil environments across central Europe, Ukraine, Russia, and China. The abiotic stress tolerances of a wider panel of 100 germplasm types to drought, salinity, and low temperatures were measured in the laboratory and a field trial in Belgium...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27916740/development-of-europium-doped-core-shell-silica-cobalt-ferrite-functionalized-nanoparticles-for-magnetic-resonance-imaging
#9
Bhavesh D Kevadiya, Aditya N Bade, Christopher Woldstad, Benson J Edagwa, JoEllyn M McMillan, Balasrinivasa R Sajja, Michael D Boska, Howard E Gendelman
: The size, shape and chemical composition of europium (Eu(3+)) cobalt ferrite (CFEu) nanoparticles were optimized for use as a "multimodal imaging nanoprobe" for combined fluorescence and magnetic resonance bioimaging. Doping Eu(3+) ions into a CF structure imparts unique bioimaging and magnetic properties to the nanostructure that can be used for real-time screening of targeted nanoformulations for tissue biodistribution assessment. The CFEu nanoparticles (size ∼7.2 nm) were prepared by solvothermal techniques and encapsulated into poloxamer 407-coated mesoporous silica (Si-P407) to form superparamagnetic monodisperse Si-CFEu nanoparticles with a size of ∼ 140 nm...
December 1, 2016: Acta Biomaterialia
https://www.readbyqxmd.com/read/27914216/synthesis-and-luminescence-characterization-of-y2-bazno5-re-re%C3%A2-%C3%A2-eu-3-tb-3-pr-3-and-sm-3-phosphors
#10
D R Taikar, C P Joshi, S V Moharil
Modified synthesis and luminescence of Y2 BaZnO5 phosphors activated with the rare earths (RE) Eu(3)(+) , Tb(3)(+) , Pr(3)(+) and Sm(3)(+) are reported. RE2 BaZnO5 phosphors have attracted attention because of their interesting magnetic and optical properties; and are usually prepared using a two-step solid-state reaction. In the first step, carbonates or similar precursors are thoroughly mixed and heated at 900°C to decompose them to oxides. To eliminate the unwanted phases like BaRE2 O4 , the resulting powders are reheated at 1100°C for a long time...
December 2, 2016: Luminescence: the Journal of Biological and Chemical Luminescence
https://www.readbyqxmd.com/read/27913942/out-migration-and-attrition-of-physicians-and-dentists-before-and-after-eu-accession-2003-and-2011-the-case-of-hungary
#11
Júlia Varga
This paper employs a large-scale, individual-level, panel dataset to analyse the effect of EU accession on the probability of out-migration on the part of Hungarian physicians and dentists between 2003 and 2011. The study uses event history modelling and competing risk models. The results show that EU accession did not at the time affect the probability of out-migration while after the end of the transitional period of restrictions on the free movement of labour from the new EU member states to Austria and Germany, the probability of doctors' migration increased considerably...
December 2, 2016: European Journal of Health Economics: HEPAC: Health Economics in Prevention and Care
https://www.readbyqxmd.com/read/27912186/recycling-oriented-comparison-of-mercury-distribution-in-new-and-spent-fluorescent-lamps-and-their-potential-risk
#12
Julia Hobohm, Oliver Krüger, Srotoswini Basu, Kerstin Kuchta, Sebastian van Wasen, Christian Adam
This study compares the mercury distribution in the vapor phase, the phosphor powder and the glass matrix of new and spent fluorescent lamps. The spent fluorescent lamps were obtained at the collection yards of a public waste management company in Hamburg, Germany. An innovative systematic sampling method is utilized to collect six spent and eight corresponding new, off-the-shelf fluorescent lamp samples. The efficiency of several acid digestion methods for the determination of the elemental composition was studied and elemental mass fractions of K, Na, Y, Ca, Ba, Eu, Al, Pb, Mg, Hg, and P were measured...
November 29, 2016: Chemosphere
https://www.readbyqxmd.com/read/27911481/photoluminescence-and-thermoluminescence-of-k2-mg-so4-2-eu-and-evaluation-of-its-kinetic-parameters
#13
Archana Deshpande, N S Dhoble, S C Gedam, S J Dhoble
The K2 Mg(SO4 )2 :Eu phosphor, synthesized by a solid-state diffusion method, was studied for its photoluminescence (PL) and thermoluminescence (TL) characteristics. The X-ray diffraction (XRD) pattern of the material was matched with the standard JCPDF No. 36-1499. For PL characteristics, K2 Mg(SO4 )2 :Eu(2)(+) showed an emission peak at 474 nm when excited at 340 nm, while it showed Eu(3)(+) emission at 580 nm, and 594 nm splitting at 613 nm and 618 nm for an excitation of 396 nm wavelength due to radiative transitions from (5) D0 to (7) Fj (j = 0, 1, 2, 3)...
December 2, 2016: Luminescence: the Journal of Biological and Chemical Luminescence
https://www.readbyqxmd.com/read/27910539/the-response-of-a-fast-scintillator-screen-yap-ce-to-low-energy-ions-0-40-kev-and-its-use-to-detect-fast-ion-loss-in-stellarator-tj-ii
#14
M Martínez, B Zurro, A Baciero, D Jiménez-Rey, V Tribaldos, M Malo, M T Crespo, D Muñoz
A systematic study of scintillation materials was undertaken to improve the time resolution of the fast ion diagnostic currently installed at TJ-II stellarator. It was found that YAP:Ce (formula YAlO3:Ce, Yttrium Aluminum Perovskite doped with Cerium) ionoluminescence offers better sensitivity and time response compared to the standard detector material, SrGa2S4:Eu (TG-Green), currently used in TJ-II. A comparison between both materials was carried out by irradiating them with H(+) ions of up to 40 keV using a dedicated laboratory setup...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27909994/cabozantinib-a-review-in-advanced-renal-cell-carcinoma
#15
Zaina T Al-Salama, Gillian M Keating
The multiple tyrosine kinase inhibitor (TKI) cabozantinib (Cabometyx™) is approved in the USA for the treatment of patients with advanced renal cell carcinoma (RCC) who have received prior antiangiogenic therapy. In the EU, cabozantinib is indicated for the treatment of advanced RCC in adults following prior vascular endothelial growth factor (VEGF)-targeted therapy. In adults with advanced or metastatic clear-cell RCC who had previously received VEGF receptor (VEGFR) TKIs, progression-free survival (PFS) and overall survival (OS) were significantly prolonged in patients who received oral cabozantinib versus oral everolimus in the pivotal METEOR trial...
December 1, 2016: Drugs
https://www.readbyqxmd.com/read/27909581/expansion-of-health-insurance-in-moldova-and-associated-improvements-in-access-and-reductions-in-direct-payments
#16
Thomas Hone, Jarno Habicht, Silviu Domente, Rifat Atun
BACKGROUND: Moldova is the poorest country in Europe. Economic constraints mean that Moldova faces challenges in protecting individuals from excessive costs, improving population health and securing health system sustainability. The Moldovan government has introduced a state benefit package and expanded health insurance coverage to reduce the burden of health care costs for citizens. This study examines the effects of expanded health insurance by examining factors associated with health insurance coverage, likelihood of incurring out-of-pocket (OOP) payments for medicines or services, and the likelihood of forgoing health care when unwell...
December 2016: Journal of Global Health
https://www.readbyqxmd.com/read/27909197/severity-assessment-in-rabbits-after-partial-hepatectomy-part-ii
#17
N Drude, K Pawlowsky, H Tanaka, K Fukushima, B Kögel, R H Tolba
Although the recognition of pain, distress and discomfort has already been described in 1985 by Morton and Griffiths there is still very little known about the establishment of score sheets especially, regarding post-surgical pain and severity assessment for laboratory animals such as rabbits. In this paper we describe the estimation of severity and recovery status of 36 female New Zealand White rabbits (NZW) in a standardized liver resection model using two different adhesive treatments and one control group...
December 2016: Laboratory Animals
https://www.readbyqxmd.com/read/27908625/a-novel-integrated-modelling-framework-to-assess-the-impacts-of-climate-and-socio-economic-drivers-on-land-use-and-water-quality
#18
Matthias Zessner, Martin Schönhart, Juraj Parajka, Helene Trautvetter, Hermine Mitter, Mathias Kirchner, Gerold Hepp, Alfred Paul Blaschke, Birgit Strenn, Erwin Schmid
Changes in climatic conditions will directly affect the quality and quantity of water resources. Further on, they will affect them indirectly through adaptation in land use which ultimately influences diffuse nutrient emissions to rivers and therefore potentially the compliance with good ecological status according to the EU Water Framework Directive (WFD). We present an integrated impact modelling framework (IIMF) to track and quantify direct and indirect pollution impacts along policy-economy-climate-agriculture-water interfaces...
November 28, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27908190/accuracy-reproducibility-and-uncertainty-analysis-of-thyroid-probe-based-activity-measurements-for-determination-of-dose-calibrator-settings
#19
Pedro L Esquinas, Jesse Tanguay, Marjorie Gonzalez, Milan Vuckovic, Cristina Rodríguez-Rodríguez, Urs O Häfeli, Anna Celler
PURPOSE: In the nuclear medicine department, the activity of radiopharmaceuticals is measured using dose calibrators (DCs) prior to patient injection. The DC consists of an ionization chamber that measures current generated by ionizing radiation (emitted from the radiotracer). In order to obtain an activity reading, the current is converted into units of activity by applying an appropriate calibration factor (also referred to as DC dial setting). Accurate determination of DC dial settings is crucial to ensure that patients receive the appropriate dose in diagnostic scans or radionuclide therapies...
December 2016: Medical Physics
https://www.readbyqxmd.com/read/27907193/phylogenetic-lineages-and-postglacial-dispersal-dynamics-characterize-the-genetic-structure-of-the-tick-ixodes-ricinus-in-northwest-europe
#20
Knut H Røed, Kjersti S Kvie, Gunnar Hasle, Lucy Gilbert, Hans Petter Leinaas
Dispersal and gene flow are important mechanisms affecting the dynamics of vectors and their pathogens. Here, patterns of genetic diversity were analyzed in many North European populations of the tick, Ixodes ricinus. Population sites were selected within and between areas separated by geographical barriers in order to evaluate the importance of tick transportation by birds in producing genetic connectivity across open sea and mountain ranges. The phylogenetic analyses of the mitochondrial control region and the cytochrome b gene revealed two distinct clades with supported sub-clades, with three genetic lineages: GB and WNo associated with Great Britain and western Norway respectively, and Eu with a wider distribution across continental Europe in agreement with much lower efficiency of tick dispersal by birds than by large mammals...
2016: PloS One
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