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https://www.readbyqxmd.com/read/28528317/levels-of-blood-lead-in-griffon-vultures-from-a-wildlife-rehabilitation-center-in-spain
#1
Fernando González, Irene López, Laura Suarez, Virginia Moraleda, Casilda Rodríguez
Lead is considered a highly toxic contaminant with important impacts to bird wildlife. Griffon vultures (Gyps fulvus) are a sensitive indicator of the level of environmental contamination due to their position at the top of the food chain and their dependence on human activities. The aim of this study was to assess susceptibility to lead intoxication in Griffon vultures admitted to Wildlife Rehabilitation Centers (WRC), measuring blood lead levels and determining if blood lead concentrations are related to clinical signs, hematological, biochemical or radiographic findings...
May 18, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28525938/logistic-regression-model-for-detecting-radon-prone-areas-in-ireland
#2
J Elío, Q Crowley, R Scanlon, J Hodgson, S Long
A new high spatial resolution radon risk map of Ireland has been developed, based on a combination of indoor radon measurements (n=31,910) and relevant geological information (i.e. Bedrock Geology, Quaternary Geology, soil permeability and aquifer type). Logistic regression was used to predict the probability of having an indoor radon concentration above the national reference level of 200Bqm(-3) in Ireland. The four geological datasets evaluated were found to be statistically significant, and, based on combinations of these four variables, the predicted probabilities ranged from 0...
May 15, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28525937/spatial-variability-of-soil-organic-carbon-in-three-gorges-reservoir-area-china
#3
Mingjun Teng, Lixiong Zeng, Wenfa Xiao, Zhiling Huang, Zhixiang Zhou, Zhaogui Yan, Pengcheng Wang
Soil organic carbon (SOC) is an important component of the global carbon pool. It is a critical indicator of soil quality. We studied SOC content (SOCC) and SOC density (SOCD) of the Three Gorges Reservoir (TGR) area in China. Soil samples from 306 sites across the study area were assessed for SOCC, SOCD and bulk density. Total SOC stocks in the TGR area were estimated at 5.82×10(-1)Pg. We examined relationships between SOCC and SOCD, and the environmental and land-use/land-cover (LULC) variables. The plow layer (0-0...
May 15, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28525800/what-is-the-association-between-healthy-weight-in-4-5-year-old-children-and-spatial-access-to-purposefully-constructed-play-areas
#4
Robin Poole, Graham Moon
BACKGROUND: Childhood obesity is a global issue. Understanding associated factors is essential in designing interventions to reduce its prevalence. There are knowledge gaps concerning the leptogenic potential of play areas for very young children and particularly whether there is an association between levels of childhood obesity and play area quality. METHODS: A cross-sectional observational study was conducted to investigate whether spatial access to play areas had an association with healthy weight status of 4-5-year-old children...
May 15, 2017: Health & Place
https://www.readbyqxmd.com/read/28523616/the-effect-of-multiple-contamination-of-soil-on-lmw-and-mmw-pahs-accumulation-in-the-roots-of-rubus-fruticosus-l-naturally-growing-near-the-copper-mining-and-smelting-complex-bor-east-serbia
#5
Slađana Č Alagić, Vesna P Stankov Jovanović, Violeta D Mitić, Jelena S Nikolić, Goran M Petrović, Snežana B Tošić, Gordana S Stojanović
Samples of roots and spatial soils of native Rubus fruticosus L. were collected from the spots positioned at different distances from the copper smelter and city heating plants in the industrial zone of the town of Bor (Serbia) and subjected to chemical analyses in order to determine the content of several heavy metals, and 15 priority polycyclic aromatic hydrocarbons (PAHs). In this study, the results for 9 low and medium molecular weight PAHs (LMW and MMW PAHs) are represented and processed using the calculation of bio-concentration factors and statistical methods such as hierarchical cluster analysis and Pearson's correlation study with the aim of investigating the plant capabilities for their uptake from the soil and later accumulation into the root tissue, under the hostile circumstances of multiple contamination...
May 18, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28523528/comparison-of-visual-outcomes-and-reading-performance-after-bilateral-implantation-of-multifocal-intraocular-lenses-with-bilateral-monofocal-intraocular-lenses
#6
Özge Güngör Akkuş, Ikbal Seza Petriçli
PURPOSE: To compare the visual acuity outcomes, contrast sensitivity function (CS) and reading ability in patients with bilateral multifocal intraocular lenses and patients with bilateral monofocal lenses. SETTING: Vizyon Eye Center, Denizli, Turkey. DESIGN: Comparative case series. METHODS: Consecutive bilateral cataract patients having implantation of Acriva Reviol MFM 611 multifocal IOLs (Group A) or Acriva BB UD 613 monofocal IOLs (Group B) were included...
May 18, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28523214/complex-regional-pain-syndrome-the-matter-of-white-matter
#7
Jaakko Hotta, Guangyu Zhou, Hanna Harno, Nina Forss, Riitta Hari
INTRODUCTION: Many central pathophysiological aspects of complex regional pain syndrome (CRPS) are still unknown. Although brain-imaging studies are increasingly supporting the contribution of the central nervous system to the generation and maintenance of the CRPS pain, the brain's white-matter alterations are seldom investigated. METHODS: In this study, we used diffusion tensor imaging to explore white-matter changes in twelve CRPS-type-1 female patients suffering from chronic right upper-limb pain compared with twelve healthy control subjects...
May 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28521192/long-term-exposure-to-residential-ambient-fine-and-coarse-particulate-matter-and-incident-hypertension-in-post-menopausal-women
#8
Trenton Honda, Melissa N Eliot, Charles B Eaton, Eric Whitsel, James D Stewart, Lina Mu, Helen Suh, Adam Szpiro, Joel D Kaufman, Sverre Vedal, Gregory A Wellenius
BACKGROUND: Long-term exposure to ambient particulate matter (PM) has been previously linked with higher risk of cardiovascular events. This association may be mediated, at least partly, by increasing the risk of incident hypertension, a key determinant of cardiovascular risk. However, whether long-term exposure to PM is associated with incident hypertension remains unclear. METHODS: Using national geostatistical models incorporating geographic covariates and spatial smoothing, we estimated annual average concentrations of residential fine (PM2...
May 15, 2017: Environment International
https://www.readbyqxmd.com/read/28520198/dynamic-and-steady-state-oxygen-dependent-lung-relaxometry-using-inversion-recovery-ultra-fast-steady-state-free-precession-imaging-at-1-5-t
#9
Grzegorz Bauman, Orso Pusterla, Francesco Santini, Oliver Bieri
PURPOSE: To demonstrate the feasibility of oxygen-dependent relaxometry in human lung using an inversion recovery ultra-fast steady-state free precession (IR-ufSSFP) technique. METHODS: Electrocardiogram-triggered pulmonary relaxometry with IR-ufSSFP was performed in 7 healthy human subjects at 1.5 T. The data were acquired under both normoxic and hyperoxic conditions. In a single breath-hold of less than 9 seconds, 30 transient state IR-ufSSFP images were acquired, yielding longitudinal (T1) and transversal (T2) relaxometry parameter maps using voxel-wise nonlinear fitting...
May 18, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28517947/intolerance-of-uncertainty-predicts-increased-striatal-volume
#10
M Justin Kim, Jin Shin, James M Taylor, Alison M Mattek, Samantha J Chavez, Paul J Whalen
Oversensitivity to uncertain future threat is usefully conceptualized as intolerance of uncertainty (IU). Neuroimaging studies of IU to date have largely focused on its relationship with brain function, but few studies have documented the association between IU and the quantitative properties of brain structure. Here, we examined potential gray and white-matter brain structural correlates of IU from 61 healthy participants. Voxel-based morphometric analysis highlighted a robust positive correlation between IU and striatal volume, particularly the putamen...
May 18, 2017: Emotion
https://www.readbyqxmd.com/read/28516144/geospatial-datasets-in-support-of-high-resolution-spatial-assessment-of-population-vulnerability-to-climate-change-in-nepal
#11
Janardan Mainali, Narcisa G Pricope
We present a geographic information system (GIS) dataset with a nominal spatial resolution of one-kilometer composed of grid polygons originally derived and utilized in a high-resolution climate vulnerability model for Nepal. The different data sets described and shared in this article are processed and tailored to the specific objectives of our research paper entitled "High-resolution Spatial Assessment of Population Vulnerability to Climate Change in Nepal" (Mainali and Pricope, In press) [1]. We share these data recognizing that there is a significant gap in regards to data availability, the spatial patterns of different biophysical and socioeconomic variables, and the overall population vulnerability to climatic variability and disasters in Nepal...
June 2017: Data in Brief
https://www.readbyqxmd.com/read/28513764/vulnerability-to-the-transmission-of-human-visceral-leishmaniasis-in-a-brazilian-urban-area
#12
Celina Roma Sánchez de Toledo, Andréa Sobral de Almeida, Sergio Augusto de Miranda Chaves, Paulo Chagastelles Sabroza, Luciano Medeiros Toledo, Jefferson Pereira Caldas
OBJECTIVE: To analyze the determinants for the occurrence of human visceral leishmaniasis linked to the conditions of vulnerability. METHODS: This is an ecological study, whose spatial analysis unit was the Territorial Analysis Unit in Araguaína, State of Tocantins, Brazil, from 2007 to 2012. We have carried out an analysis of the sociodemographic and urban infrastructure situation of the municipality. Normalized primary indicators were calculated and used to construct the indicators of vulnerability of the social structure, household structure, and urban infrastructure...
May 15, 2017: Revista de Saúde Pública
https://www.readbyqxmd.com/read/28510708/aberrant-white-matter-microstructure-in-children-and-adolescents-with-the-subtype-of-prader-willi-syndrome-at-high-risk-for-psychosis
#13
Akvile Lukoshe, Gerbrich E van den Bosch, Aad van der Lugt, Steven A Kushner, Anita C Hokken-Koelega, Tonya White
Prader-Willi Syndrome (PWS) is a complex neurogenetic disorder caused by loss of the paternal 15q11.2-q13 locus, due to deletion (DEL), maternal uniparental disomy (mUPD), or imprinting center defects. Individuals with mUPD have up to 60% risk of developing psychosis in early adulthood. Given the increasing evidence for white matter abnormalities in psychotic disorders, we investigated white matter microstructure in children and adolescents with PWS, with a particular emphasis on the DEL and mUPD subtypes. Magnetic resonance diffusion weighted images were acquired in 35 directions at 3T and analyzed using fractional anisotropy (FA), mean, axial, and radial diffusivity (MD, AD, RD) values obtained by tract-based spatial statistics (TBSS) in 28 children and adolescents with PWS and 61 controls...
May 16, 2017: Schizophrenia Bulletin
https://www.readbyqxmd.com/read/28510584/identification-of-novel-risk-factors-for-community-acquired-clostridium-difficile-infection-using-spatial-statistics-and-geographic-information-system-analyses
#14
Deverick J Anderson, Leoncio Flavio Rojas, Shera Watson, Lauren P Knelson, Sohayla Pruitt, Sarah S Lewis, Rebekah W Moehring, Emily E Sickbert Bennett, David J Weber, Luke F Chen, Daniel J Sexton
BACKGROUND: The rate of community-acquired Clostridium difficile infection (CA-CDI) is increasing. While receipt of antibiotics remains an important risk factor for CDI, studies related to acquisition of C. difficile outside of hospitals are lacking. As a result, risk factors for exposure to C. difficile in community settings have been inadequately studied. MAIN OBJECTIVE: To identify novel environmental risk factors for CA-CDI. METHODS: We performed a population-based retrospective cohort study of patients with CA-CDI from 1/1/2007 through 12/31/2014 in a 10-county area in central North Carolina...
2017: PloS One
https://www.readbyqxmd.com/read/28508259/investigation-of-the-scaling-characteristics-of-landsat-temperature-and-vegetation-data-a-wavelet-based-approach
#15
Maheswaran Rathinasamy, V M Bindhu, Jan Adamowski, Balaji Narasimhan, Rakesh Khosa
An investigation of the scaling characteristics of vegetation and temperature data derived from LANDSAT data was undertaken for a heterogeneous area in Tamil Nadu, India. A wavelet-based multiresolution technique decomposed the data into large-scale mean vegetation and temperature fields and fluctuations in horizontal, diagonal, and vertical directions at hierarchical spatial resolutions. In this approach, the wavelet coefficients were used to investigate whether the normalized difference vegetation index (NDVI) and land surface temperature (LST) fields exhibited self-similar scaling behaviour...
May 16, 2017: International Journal of Biometeorology
https://www.readbyqxmd.com/read/28507285/multivariate-eeg-analyses-support-high-resolution-tracking-of-feature-based-attentional-selection
#16
Johannes Jacobus Fahrenfort, Anna Grubert, Christian N L Olivers, Martin Eimer
The primary electrophysiological marker of feature-based selection is the N2pc, a lateralized posterior negativity emerging around 180-200 ms. As it relies on hemispheric differences, its ability to discriminate the locus of focal attention is severely limited. Here we demonstrate that multivariate analyses of raw EEG data provide a much more fine-grained spatial profile of feature-based target selection. When training a pattern classifier to determine target position from EEG, we were able to decode target positions on the vertical midline, which cannot be achieved using standard N2pc methodology...
May 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28506288/visualizing-statistical-significance-of-disease-clusters-using-cartograms
#17
Barry J Kronenfeld, David W S Wong
BACKGROUND: Health officials and epidemiological researchers often use maps of disease rates to identify potential disease clusters. Because these maps exaggerate the prominence of low-density districts and hide potential clusters in urban (high-density) areas, many researchers have used density-equalizing maps (cartograms) as a basis for epidemiological mapping. However, we do not have existing guidelines for visual assessment of statistical uncertainty. To address this shortcoming, we develop techniques for visual determination of statistical significance of clusters spanning one or more districts on a cartogram...
May 15, 2017: International Journal of Health Geographics
https://www.readbyqxmd.com/read/28504449/a-decade-of-colonization-the-spread-of-the-asian-tiger-mosquito-in-pennsylvania-and-implications-for-disease-risk
#18
Eric D Taber, Michael L Hutchinson, Erica A H Smithwick, Justine I Blanford
In recent decades, the Asian tiger mosquito expanded its geographic range throughout the northeastern United States, including Pennsylvania. The establishment of Aedes albopictus in novel areas raises significant public health concerns, since this species is a highly competent vector of several arboviruses, including chikungunya, West Nile, and dengue. In this study, we used geographic information systems (GIS) to examine a decade of colonization by Ae. albopictus throughout Pennsylvania between 2001 and 2010...
June 2017: Journal of Vector Ecology: Journal of the Society for Vector Ecology
https://www.readbyqxmd.com/read/28504433/influence-of-shading-and-pedestrian-traffic-on-the-preference-of-aedes-stegomyia-aegypti-diptera-culicidae-for-oviposition-microenvironments
#19
G P Prado, J S Maciel, G R Leite, M A A Souza
Aedes aegypti mosquitoes are highly adaptable to abiotic stimuli. To evaluate the influence of shading and pedestrian traffic on the preference of Ae. aegypti for oviposition microenvironments, 20 sites were sampled weekly using ovitraps within the perimeter of Universidade Federal do Espírito Santo, located in São Mateus, Espírito Santo, Brazil. A spatial and statistical analysis was performed in order to assess the relationship between shading time, pedestrian traffic, and the presence of biological forms of Ae...
June 2017: Journal of Vector Ecology: Journal of the Society for Vector Ecology
https://www.readbyqxmd.com/read/28503904/white-matter-compromise-in-autism-differentiating-motion-confounds-from-true-differences-in-diffusion-tensor-imaging
#20
Seraphina K Solders, Ruth A Carper, Ralph-Axel Müller
Common findings from diffusion tensor imaging (DTI) in autism spectrum disorder (ASD) include reduced fractional anisotropy (FA), and increased mean and radial diffusivity (MD, RD) of white matter tracts. However, findings may be confounded by head motion. We examined how group-level motion matching affects DTI comparisons between ASD and typically developing (TD) groups. We included 57 ASD and 50 TD participants, comparing three subsets at increasing levels of motion-matching stringency: full sample (FS); quality-controlled (QC); and quantitatively-matched (QM)...
May 15, 2017: Autism Research: Official Journal of the International Society for Autism Research
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