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https://www.readbyqxmd.com/read/28910084/changes-in-flame-retardant-and-legacy-contaminant-concentrations-in-indoor-air-during-building-construction-furnishing-and-use
#1
Šimon Vojta, Lisa Melymuk, Jana Klánová
A newly constructed university building was selected for targeted assessment of changes in the levels of flame retardants and legacy contaminants during the installation of building equipment, furniture, electronics, and first year of building use. Indoor air samples were collected during several periods of intensive equipment installation to determine a relationship between newly introduced equipment and changes in the concentrations and profiles of contaminants in indoor air. Samples were analyzed for polybrominated diphenyl ethers (PBDEs), hexabromocyclododecanes (HBCDDs), and new types of flame retardants: brominated (BFRs) and organophosphate esters (OPEs)...
October 17, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28905230/molecular-detection-of-anaplasma-platys-anaplasma-phagocytophilum-and-wolbachia-sp-but-not-ehrlichia-canis-in-croatian-dogs
#2
Doroteja Huber, Irena Reil, Sanja Duvnjak, Daria Jurković, Damir Lukačević, Miroslav Pilat, Ana Beck, Željko Mihaljević, Lea Vojta, Adam Polkinghorne, Relja Beck
The bacteria Anaplasma platys, Anaplasma phagocytophilum and Ehrlichia canis are tick-borne agents that cause canine vector-borne disease. The prevalence of these pathogens in South Eastern Europe is unknown with the exception of an isolated case of A. platys detected in a dog imported into Germany from Croatia. To gain a better insight into their presence and prevalence, PCR-based screening for these bacterial pathogens was performed on domesticated dogs from different regions of Croatia. Blood samples from 1080 apparently healthy dogs from coastal and continental parts of Croatia as well as tissue samples collected from 63 deceased dogs with a history of anaemia and thrombocytopenia were collected for molecular screening by an Anaplasmataceae-specific 16S rRNA conventional PCR...
November 2017: Parasitology Research
https://www.readbyqxmd.com/read/28903574/whole-exome-sequencing-of-aberrant-plasma-cells-in-a-patient-with-multiple-myeloma-minimal-residual-disease
#3
M Zatopkova, J Filipová, T Jelínek, P Vojta, T Sevcikova, M Simicek, L Rihova, R Bezdekova, K Growkova, Z Kufová, J Smejkalová, M Hajdúch, L Pour, J Minárik, A Jungová, V Maisnar, F Kryukov, R Hájek
Multiple myeloma is a plasma cell dyscrasia. It is the second most common hematological malignancy which is characterized by proliferation of clonal plasma cells producing harmful monoclonal immunoglobulin. Despite treatment modalities greatly evolved during the last decade, small amount of aberrant residual cells reside in patients after therapy and can cause relapse of the disease. Characterization of the residual, resistant clones can help to reveal important therapeutic targets for application of effective and precious treatment...
2017: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/28903572/biomarkers-in-immunoglobulin-light-chain-amyloidosis
#4
Z Kufová, T Sevcikova, K Growkova, P Vojta, J Filipová, Z Adam, L Pour, M Penka, R Rysava, P Němec, L Brozova, P Vychytilova, A Jurczyszyn, S Grosicki, A Barchnicka, M Hajdúch, M Simicek, R Hájek
Immunoglobulin light chain amyloidosis (AL amyloidosis - ALA) is a monoclonal gammopathy characterized by presence of aberrant plasma cells producing amyloidogenic immunoglobulin light chains. This leads to formation of amyloid fibrils in various organs and tissues, mainly in heart and kidney, and causes their dysfunction. As amyloid depositing in target organs is irreversible, there is a big effort to identify biomarker that could help to distinguish ALA from other monoclonal gammopathies in the early stages of disease, when amyloid deposits are not fatal yet...
2017: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/28871003/association-between-rassf1a-promoter-methylation-and-testicular-germ-cell-tumor-a-meta-analysis-and-a-cohort-study
#5
Dora Markulin, Aleksandar Vojta, Ivana Samaržija, Marija Gamulin, Ivona Bečeheli, Irena Jukić, Čedomir Maglov, Vlatka Zoldoš, Aleksandra Fučić
BACKGROUND: The RAS association domain family protein 1a (RASSF1A) is a prominent tumor suppressor gene showing altered promoter methylation in testicular germ cell tumors (TGCT). RASSF1A promoter hypermethylation might represent an early event in TGCT tumorigenesis. We investigated whether the RASSF1A promoter methylation in peripheral blood of TGCT patients can be associated with testicular cancer risk. MATERIALS AND METHODS: Following a meta-analysis, we performed a cohort study including 32 testicular cancer patients and 32 healthy controls...
September 2017: Cancer Genomics & Proteomics
https://www.readbyqxmd.com/read/28843142/legacy-and-alternative-halogenated-flame-retardants-in-human-milk-in-europe-implications-for-children-s-health
#6
Eliška Čechová, Šimon Vojta, Petr Kukučka, Anton Kočan, Tomáš Trnovec, Ľubica Palkovičová Murínová, Marijke de Cock, Margot van de Bor, Joakim Askevold, Merete Eggesbø, Martin Scheringer
In this study, 10 polybrominated diphenyl ethers (PBDEs) and 19 alternative halogenated flame retardants (AFRs) were determined in >450 human milk samples across three European countries, representing northern, western and eastern Europe. This study provides first insights into the occurrence of selected AFRs in mother milk samples and compares them among three European countries. Sums of median concentrations of the most frequently detected PBDEs were 2.16, 0.88 and 0.45ngg(-1) lipid weight (lw) in Norway, the Netherlands and Slovakia, respectively...
August 23, 2017: Environment International
https://www.readbyqxmd.com/read/28817302/comparative-effectiveness-and-costs-of-insulin-pump-therapy-for-diabetes
#7
Ronald T Ackermann, Amisha Wallia, Raymond Kang, Andrew Cooper, Theodore A Prospect, Lewis G Sandy, Deneen Vojta
OBJECTIVES: Continuous subcutaneous insulin infusion (CSII), or "insulin pump" therapy, is an alternative to multiple daily insulin injections (MDII) for management of diabetes. This study evaluates patterns of healthcare utilization, costs, and blood glucose control for patients with diabetes who initiate CSII. STUDY DESIGN: Pre-post with propensity-matched comparison design involving commercially insured US adults (aged 18-64 years) with insulin-requiring diabetes who transitioned from MDII to CSII between July 1, 2009, and June 30, 2012 ("CSII initiators"; n = 2539), or who continued using MDI (n = 2539)...
June 2017: American Journal of Managed Care
https://www.readbyqxmd.com/read/28707923/quantum-griffiths-phase-inside-the-ferromagnetic-phase-of-ni_-1-x-v_-x
#8
Ruizhe Wang, Adane Gebretsadik, Sara Ubaid-Kassis, Almut Schroeder, Thomas Vojta, Peter J Baker, Francis L Pratt, Stephen J Blundell, Tom Lancaster, Isabel Franke, Johannes S Möller, Katharine Page
We study by means of bulk and local probes the d-metal alloy Ni_{1-x}V_{x} close to the quantum critical concentration, x_{c}≈11.6%, where the ferromagnetic transition temperature vanishes. The magnetization-field curve in the ferromagnetic phase takes an anomalous power-law form with a nonuniversal exponent that is strongly x dependent and mirrors the behavior in the paramagnetic phase. Muon spin rotation experiments demonstrate inhomogeneous magnetic order and indicate the presence of dynamic fluctuating magnetic clusters...
June 30, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28624751/organophosphate-esters-flame-retardants-in-the-indoor-environment
#9
Martina Vykoukalová, Marta Venier, Šimon Vojta, Lisa Melymuk, Jitka Bečanová, Kevin Romanak, Roman Prokeš, Joseph O Okeme, Amandeep Saini, Miriam L Diamond, Jana Klánová
Concentrations of 13 organophosphate ester flame retardants (OPEs) were measured in air, dust and window wipes from 63 homes in Canada, the Czech Republic and the United States in the spring and summer of 2013 to look for abundances, differences among regions, and partitioning behavior. In general, we observed the highest concentrations for halogenated OPEs, particularly TCEP, TCIPP and TDCIPP, and also non-halogenated TPHP. Differences between regions strongly depended on the matrix. The concentrations of OPEs in dust were significantly higher in the US than in Canada (CAN) and Czech Republic (CZ)...
June 15, 2017: Environment International
https://www.readbyqxmd.com/read/28265162/vojta-therapy-and-neurodevelopmental-treatment-in-children-with-infantile-postural-asymmetry-a-randomised-controlled-trial
#10
Michael Wilhelm Jung, Margarete Landenberger, Tatjana Jung, Thorsten Lindenthal, Heike Philippi
[Purpose] Physical therapy is an acknowledged and frequently applied method for infantile postural asymmetry. However, there is not yet sufficient evidence for its effectiveness. [Subjects and Methods] In a randomised controlled trial, the effect of Vojta therapy versus Neurodevelopmental treatment is assessed in infants with postural asymmetry. 65 infants with postural asymmetry were recruited. 37 infants aged six to eight weeks (mean 7.38) were found to be eligible and randomly assigned to two groups, with 19 receiving Vojta and 18 Neurodevelopmental treatment...
February 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28229931/modulation-of-the-sensorimotor-system-by-sustained-manual-pressure-stimulation
#11
Pavel Hok, Jaroslav Opavský, Miroslav Kutín, Zbyněk Tüdös, Petr Kaňovský, Petr Hluštík
In Vojta physiotherapy, also known as reflex locomotion therapy, prolonged peripheral pressure stimulation induces complex generalized involuntary motor responses and modifies subsequent behavior, but its neurobiological basis remains unknown. We hypothesized that the stimulation would induce sensorimotor activation changes in functional magnetic resonance imaging (fMRI) during sequential finger opposition. Thirty healthy volunteers (mean age 24.2) underwent two randomized fMRI sessions involving manual pressure stimulation applied either at the right lateral heel according to Vojta, or at the right lateral ankle (control site)...
April 21, 2017: Neuroscience
https://www.readbyqxmd.com/read/28222263/reaction-mechanism-of-covalent-modification-of-phosphatidylethanolamine-lipids-by-reactive-aldehydes-4-hydroxy-2-nonenal-and-4-oxo-2-nonenal
#12
Katarina Vazdar, Danijela Vojta, Davor Margetić, Mario Vazdar
4-Hydroxy-2-nonenal (HNE) and 4-oxo-2-nonenal (ONE) are biologically important reactive aldehydes formed during oxidative stress in phospholipid bilayers. They are highly reactive species due to presence of several reaction centers and can react with amino acids in peptides and proteins, as well as phosphoethanolamine (PE) lipids, thus modifying their biological activity. The aim of this work is to study in a molecular detail the reactivity of HNE and ONE toward PE lipids in a simplified system containing only lipids and reactive aldehydes in dichloromethane as an inert solvent...
March 20, 2017: Chemical Research in Toxicology
https://www.readbyqxmd.com/read/28119875/effects-of-vojta-method-on-trunk-stability-in-healthy-individuals
#13
Sun-Young Ha, Yun-Hee Sung
Vojta reflex locomotion is important to main upright posture through stimulation of breast zone to patient with cerebral palsy. However, application in other diseases is no investigated. So, we determined the effects of stimulation of the breast zone on trunk stability in healthy individuals. Fourteen young healthy adults (7 males and 7 females) voluntarily participated in this study. The subjects were randomly divided into an experimental group (breast zone) and control group (arbitrary point). All groups were stimulated for 5 min on the left and right sides, respectively, for a total 10 times...
December 2016: Journal of Exercise Rehabilitation
https://www.readbyqxmd.com/read/28059526/strain-induced-landau-levels-in-arbitrary-dimensions-with-an-exact-spectrum
#14
Stephan Rachel, Ilja Göthel, Daniel P Arovas, Matthias Vojta
Certain nonuniform strain applied to graphene flakes has been shown to induce pseudo-Landau levels in the single-particle spectrum, which can be rationalized in terms of a pseudomagnetic field for electrons near the Dirac points. However, this Landau level structure is, in general, approximate and restricted to low energies. Here, we introduce a family of strained bipartite tight-binding models in arbitrary spatial dimension d and analytically prove that their entire spectrum consists of perfectly degenerate pseudo-Landau levels...
December 23, 2016: Physical Review Letters
https://www.readbyqxmd.com/read/27982631/quantum-critical-scaling-in-the-disordered-itinerant-ferromagnet-uco_-1-x-fe_-x-ge
#15
K Huang, S Eley, P F S Rosa, L Civale, E D Bauer, R E Baumbach, M B Maple, M Janoschek
The Belitz-Kirkpatrick-Vojta (BKV) theory shows in excellent agreement with experiment that ferromagnetic quantum phase transitions (QPTs) in clean metals are generally first order due to the coupling of the magnetization to electronic soft modes, in contrast to the classical analogue that is an archetypical second-order phase transition. For disordered metals the BKV theory predicts that the second-order nature of the QPT is restored because the electronic soft modes change their nature from ballistic to diffusive...
December 2, 2016: Physical Review Letters
https://www.readbyqxmd.com/read/27855342/screening-for-halogenated-flame-retardants-in-european-consumer-products-building-materials-and-wastes
#16
Šimon Vojta, Jitka Bečanová, Lisa Melymuk, Klára Komprdová, Jiří Kohoutek, Petr Kukučka, Jana Klánová
To fulfill national and international fire safety standards, flame retardants (FRs) are being added to a wide range of consumer products and building materials consisting of flammable materials like plastic, wood and textiles. While the FR composition of some products and materials has been identified in recent years, the limited global coverage of the data and the large diversity in consumer products necessitates more information for an overall picture of the FR composition in common products/materials. To address this issue, 137 individual samples of various consumer products, building materials and wastes were collected...
February 2017: Chemosphere
https://www.readbyqxmd.com/read/27830313/an-effective-clean-up-technique-for-gc-ei-hrms-determination-of-developmental-neurotoxicants-in-human-breast-milk
#17
Eliška Čechová, Marta Seifertová, Petr Kukučka, Šimon Vojta, Ilona Quaak, Marijke de Cock, Margot van de Bor, Anton Kočan
The increasing number of children suffering from developmental disorders has raised questions regarding their association with the presence of environmental contaminants in mothers and children. We therefore developed a new method for the determination of 78 proven and potential developmental neurotoxicants, including polychlorinated biphenyls, legacy pesticides, pyrethroids, and old and new halogenated flame retardants in breast milk. The essential part of sample preparation was dialysis as a non-destructive clean-up step which was newly used at 10 °C and showed more efficient lipid removal (up to 96%) than the conventional methods such as gel permeation chromatography or freezing-lipid filtration and thus ensured low limits of detection (LOD) by reducing the sample volume prior to injection...
November 9, 2016: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/27643468/electronic-states-of-myricetin-uv-vis-polarization-spectroscopy-and-quantum-chemical-calculations
#18
Danijela Vojta, Eva Marie Karlsen, Jens Spanget-Larsen
Myricetin (3,3',4',5,5',7'-hexahydroxyflavone) was investigated by linear dichroism spectroscopy on molecular samples partially aligned in stretched poly(vinyl alcohol) (PVA). At least five electronic transitions in the range 40,000-20,000cm(-1) were characterized with respect to their wavenumbers, relative intensities, and transition moment directions. The observed bands were assigned to electronic transitions predicted with TD-B3LYP/6-31+G(d,p).
February 15, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/27627250/contact-process-with-temporal-disorder
#19
Hatem Barghathi, Thomas Vojta, José A Hoyos
We investigate the influence of time-varying environmental noise, i.e., temporal disorder, on the nonequilibrium phase transition of the contact process. Combining a real-time renormalization group, scaling theory, and large scale Monte-Carlo simulations in one and two dimensions, we show that the temporal disorder gives rise to an exotic critical point. At criticality, the effective noise amplitude diverges with increasing time scale, and the probability distribution of the density becomes infinitely broad, even on a logarithmic scale...
August 2016: Physical Review. E
https://www.readbyqxmd.com/read/27592321/screening-for-perfluoroalkyl-acids-in-consumer-products-building-materials-and-wastes
#20
Jitka Bečanová, Lisa Melymuk, Šimon Vojta, Klára Komprdová, Jana Klánová
Perfluoroalkyl and polyfluoroalkyl substances (PFASs) are a large group of important chemical compounds with unique and useful physico-chemical properties, widely produced and used in many applications. However, due to the toxicity, bioaccumulation and long-range transport potential of certain PFASs, they are of significant concern to scientists and policy makers. To assess human exposure to PFASs, it is necessary to understand the concentrations of these emerging contaminants in our environment, and particularly environments where urban population spend most of their time, i...
December 2016: Chemosphere
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