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https://www.readbyqxmd.com/read/28432879/seasonal-variation-and-health-risk-assessment-of-organochlorine-compounds-in-urban-soils-of-novi-sad-serbia
#1
Biljana D Škrbić, Vesna Marinković, Igor Antić, Anita Petrović Gegić
The aim of this paper was to determine spatial and seasonal variation of 6 indicator polychlorinated biphenyls (PCBs) and 18 organochlorine pesticides (OCPs) in urban soils of Novi Sad, Serbia. Sixty surface soil samples were collected during both winter and summer season, from different types of locations: schools, recreational areas, residential and industrial zones. Samples were treated using the method of accelerated solvent extraction, which allows simultaneous extraction and clean up of PCBs and OCPs...
April 15, 2017: Chemosphere
https://www.readbyqxmd.com/read/28432628/design-of-water-quality-monitoring-networks-with-two-information-scenarios-in-tropical-andean-basins
#2
Juan Carlos Bastidas, Jorge Julián Vélez, Jeannette Zambrano, Adela Londoño
Design and redesign of water quality monitoring networks were evaluated for two similarly sized watersheds in the tropical Andes via optimization techniques using geographic information system technology (GIS) and a matter-element analysis of 5-day biological oxygen demand (BOD5) and total suspended solids (TSS). This resulted in a flexible, objectively based design for a 1128-km(2) watershed without prior water quality data (La Miel River), and a network redesign of a 1052-km(2) watershed with historical water quality monitoring (Chinchiná River)...
April 21, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28430121/synthesis-characterization-and-enhanced-sensing-properties-of-a-nio-zno-p-n-junctions-sensor-for-the-sf%C3%A2-decomposition-byproducts-so%C3%A2-so%C3%A2-f%C3%A2-and-sof%C3%A2
#3
Hongcheng Liu, Qu Zhou, Qingyan Zhang, Changxiang Hong, Lingna Xu, Lingfeng Jin, Weigen Chen
The detection of partial discharge and analysis of the composition and content of sulfur hexafluoride SF₆ gas components are important to evaluate the operating state and insulation level of gas-insulated switchgear (GIS) equipment. This paper reported a novel sensing material made of pure ZnO and NiO-decorated ZnO nanoflowers which were synthesized by a facile and environment friendly hydrothermal process for the detection of SF₆ decomposition byproducts. X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), high resolution transmission electron microscopy (HRTEM), energy-dispersive X-ray spectroscopy (EDS) and X-ray photoelectron spectroscopy (XPS) were used to characterize the structural and morphological properties of the prepared gas-sensitive materials...
April 21, 2017: Sensors
https://www.readbyqxmd.com/read/28429250/exploring-geospatial-techniques-for-spatiotemporal-change-detection-in-land-cover-dynamics-along-soan-river-pakistan
#4
Hafsa Bashir, Sheikh Saeed Ahmad
Classification of land cover dynamics via satellite imagery has played indispensible services in developing effective management strategies for evaluation and management of water resources. The present study employed geospatial techniques, i.e., integrated GIS and remote sensing for effectual land change study. Hybrid classification approach was applied using ERDAS Imagine 11 to detect changes in land cover dynamics using satellite imagery of Landsat 4, 5 TM, Landsat 7 ETM, and Landsat 8 OLI for the years of 1992, 2002, and 2015, respectively...
May 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28427355/identifying-and-characterizing-hepatitis-c-virus-hotspots-in-massachusetts-a-spatial-epidemiological-approach
#5
Thomas J Stopka, Michael A Goulart, David J Meyers, Marga Hutcheson, Kerri Barton, Shauna Onofrey, Daniel Church, Ashley Donahue, Kenneth K H Chui
BACKGROUND: Hepatitis C virus (HCV) infections have increased during the past decade but little is known about geographic clustering patterns. METHODS: We used a unique analytical approach, combining geographic information systems (GIS), spatial epidemiology, and statistical modeling to identify and characterize HCV hotspots, statistically significant clusters of census tracts with elevated HCV counts and rates. We compiled sociodemographic and HCV surveillance data (n = 99,780 cases) for Massachusetts census tracts (n = 1464) from 2002 to 2013...
April 20, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28425854/rationale-design-synthesis-cytotoxicity-evaluation-and-molecular-docking-studies-of-1-3-4-oxadiazole-analogues
#6
Mohamed Jawed Ahsan, Arun Choupra, Rakesh Kumar Sharma, Surender Singh Jadav, Mohd Zaheen Hassan, Mohammed Afroz Bakht, Pannala Padmaja, Abdulmalik Bin Saleh Al-Tamimi, Mohammed H Geesi
We report herein, the synthesis of two new series of oxadiazole analogues, and their cytotoxicity evaluation. The oxadiazole analogues (5a-h and 12a-h) were structurally related to the heterocyclic (1,3,4- oxadiazole) linked aryl core of IMC-038525 (tubulin polymerization inhibitor), NSC 776715, and NSC 776716, with further modification by incorporating methylene linker. The title compounds (5a-h and 12a-h) were synthesized in good yields, and were characterized by IR, NMR, and mass spectral data. The cytotoxicity evaluation was carried out according to the National Cancer Institute (NCI US) Protocol against NCI-60 human cell lines derived from nine different panels...
April 19, 2017: Anti-cancer Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/28425128/understanding-the-effects-of-different-social-data-on-selecting-priority-conservation-areas
#7
Azadeh Karimi, Ayesha I T Tulloch, Greg Brown, Marc Hockings
Conservation success is contingent on assessing social as well as environmental factors so that cost-effective implementation of strategies and actions can be placed in a broad social-ecological context. Until now, the focus has been on how to include spatially-explicit social data in conservation planning, whereas the value of different kinds of social data has received limited attention. In a regional systematic conservation planning case study in Australia, we examined the spatial concurrence of a range of spatially-explicit social values and preferences collected using public participation GIS (PPGIS) methods with biological data...
April 20, 2017: Conservation Biology: the Journal of the Society for Conservation Biology
https://www.readbyqxmd.com/read/28424478/the-prevalence-of-thalassemia-in-mainland-china-evidence-from-epidemiological-surveys
#8
Ketong Lai, Guifeng Huang, Li Su, Yunyan He
Comprehensive data regarding the epidemiology and prevalence of thalassemia in mainland China are lacking. To assess the prevalence of thalassemia, we performed a meta-analysis including 16 articles published from 1981 to 2015. The overall prevalence of α-thalassemia, β-thalassemia and α + β-thalassemia was 7.88%, 2.21% and 0.48%, respectively. Trends in thalassemia prevalence in mainland China were not steady; a prevalence map based on a geographic information system (GIS) showed that the geographic distribution of thalassemia was highest in the south of China and decreased from south to north...
April 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28420404/development-of-a-spatial-sampling-protocol-using-gis-to-measure-health-disparities-in-bobo-dioulasso-burkina-faso-a-medium-sized-african-city
#9
Daouda Kassié, Anna Roudot, Nadine Dessay, Jean-Luc Piermay, Gérard Salem, Florence Fournet
BACKGROUND: Many cities in developing countries experience an unplanned and rapid growth. Several studies have shown that the irregular urbanization and equipment of cities produce different health risks and uneven exposure to specific diseases. Consequently, health surveys within cities should be carried out at the micro-local scale and sampling methods should try to capture this urban diversity. METHODS: This article describes the methodology used to develop a multi-stage sampling protocol to select a population for a demographic survey that investigates health disparities in the medium-sized city of Bobo-Dioulasso, Burkina Faso...
April 18, 2017: International Journal of Health Geographics
https://www.readbyqxmd.com/read/28420391/interactive-open-source-travel-time-scenario-modelling-tools-to-facilitate-participation-in-health-service-access-analysis
#10
Rohan Fisher, Jonatan Lassa
BACKGROUND: Modelling travel time to services has become a common public health tool for planning service provision but the usefulness of these analyses is constrained by the availability of accurate input data and limitations inherent in the assumptions and parameterisation. This is particularly an issue in the developing world where access to basic data is limited and travel is often complex and multi-modal. Improving the accuracy and relevance in this context requires greater accessibility to, and flexibility in, travel time modelling tools to facilitate the incorporation of local knowledge and the rapid exploration of multiple travel scenarios...
April 18, 2017: International Journal of Health Geographics
https://www.readbyqxmd.com/read/28420186/using-moss-to-assess-airborne-heavy-metal-pollution-in-taizhou-china
#11
Xiaoli Zhou, Qin Chen, Chang Liu, Yanming Fang
Bryophytes act as bioindicators and bioaccumulators of metal deposition in the environment. To understand the atmospheric deposition of heavy metals (cadmium (Cd), chromium (Cr), copper (Cu), mercury (Hg), nickel (Ni), lead (Pb), and zinc (Zn)) in Taizhou, East China, samples of moss (Haplocladium microphyllum) were collected from 60 sites selected by a systematic sampling method during the summer of 2012, and the concentrations of these heavy metals were determined by inductively coupled plasma atomic emission spectroscopy (ICP-AES)...
April 17, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28418204/modeling-aesthetics-to-support-an-ecosystem-services-approach-for-natural-resource-management-decision-making
#12
Pieter N Booth, Sheryl A Law, Jane Ma, John Buonogurio, James Boyd, Jessica Turnley
This paper reviews literature on aesthetics and describes the development of vista and landscape aesthetics models. Spatially explicit variables were chosen to represent physical characteristics of natural landscapes that are important to aesthetic preferences. A vista aesthetics model evaluates the aesthetics of natural landscapes viewed from distances over 1,000 m. and a landscape aesthetics model evaluates the aesthetic value of wetlands and forests within 1,000 m from the viewer. Each of the model variables is quantified using spatially-explicit metrics on a pixel-specific basis within EcoAIM™, a GIS-based ecosystem services decision analysis support tool...
April 18, 2017: Integrated Environmental Assessment and Management
https://www.readbyqxmd.com/read/28414937/accessibility-of-tertiary-hospitals-in-finland-a-comparison-of-administrative-and-normative-catchment-areas
#13
Tiina Huotari, Harri Antikainen, Timo Keistinen, Jarmo Rusanen
The determination of an appropriate catchment area for a hospital providing highly specialized (i.e. tertiary) health care is typically a trade-off between ensuring adequate client volumes and maintaining reasonable accessibility for all potential clients. This may pose considerable challenges, especially in sparsely inhabited regions. In Finland, tertiary health care is concentrated in five university hospitals, which provide services in their dedicated catchment areas. This study utilizes Geographic Information Systems (GIS), together with grid-based population data and travel-time estimates, to assess the spatial accessibility of these hospitals...
April 11, 2017: Social Science & Medicine
https://www.readbyqxmd.com/read/28411500/computerized-reconstruction-of-fragmentary-skeletal-remains
#14
Mohamed R Mahfouz, Ali Mustafa, Emam ElHak Abdel Fatah, Nicholas P Herrmann, Natalie R Langley
This research presents a new software, "Fragmento", for accurate analyses of fragmentary human skeletal remains and facilitation of three-dimensional (3D) fragmentary matching and full bone reconstruction. The framework utilizes the power of statistical bone atlases to create 3D templates for bone matching and to interpolate missing anatomy for full bone reconstruction. Developed tool has enhanced features allowing the user to visualize, review and scale all scanned skeletal remains within a 3D statistical template, merging accepted registered elements to provide a fully reconstructed bone...
March 31, 2017: Forensic Science International
https://www.readbyqxmd.com/read/28411319/fifty-year-spatiotemporal-analysis-of-landscape-changes-in-the-mont-saint-hilaire-unesco-biosphere-reserve-quebec-canada
#15
Marc Béliveau, Daniel Germain, Ana-Neli Ianăş
Diachronic analysis with a GIS-based classification of land-use changes based on aerial photographs, orthophotos, topographic maps, geotechnical reports, urban plans, and using landscape metrics has permitted insight into the driving forces responsible for landscape fragmentation in the Mont Saint-Hilaire (MSH) Biosphere Reserve over the period 1958-2015. Although the occurrence of exogenous factors, such as extreme weather and fires, can have a significant influence on the fragmentation of the territory in time and space, the accelerated development of the built environment (+470%) is nevertheless found to be primarily responsible for landscape fragmentation and the loss of areas formerly occupied by orchards, agriculture, and woodlands...
May 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28405301/canada-lynx-use-of-burned-areas-conservation-implications-of-changing-fire-regimes
#16
Carmen M Vanbianchi, Melanie A Murphy, Karen E Hodges
A fundamental problem in ecology is forecasting how species will react to major disturbances. As the climate warms, large, frequent, and severe fires are restructuring forested landscapes at large spatial scales, with unknown impacts on imperilled predators. We use the United States federally Threatened Canada lynx as a case study to examine how predators navigate recent large burns, with particular focus on habitat features and the spatial configuration (e.g., distance to edge) that enabled lynx use of these transformed landscapes...
April 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28400039/population-access-to-reperfusion-services-for-st-segment-elevation-myocardial-infarction-in-kerala-india
#17
Anoop Mathew, Jabir Abdullakutty, Placid Sebastian, Sunitha Viswanathan, Cibu Mathew, Venugopalan Nair, Padinhare P Mohanan, A George Koshy
BACKGROUND: Population access to timely reperfusion is a decisive factor in determining the success and acceptability of any regional system of ST-segment elevation myocardial infarction (STEMI) care. We sought to determine the proportion of population of the southern Indian state of Kerala having timely access to STEMI reperfusion. METHODS: We identified the STEMI reperfusion facilities available at all acute-care hospitals, in Kerala, by conducting a cross-sectional survey...
April 2017: Indian Heart Journal
https://www.readbyqxmd.com/read/28397120/evaluating-impacts-of-recharging-partially-treated-wastewater-on-groundwater-aquifer-in-semi-arid-region-by-integration-of-monitoring-program-and-gis-technique
#18
Tamer M Alslaibi, Yasser Kishawi, Ziyad Abunada
The current study investigates the impact of recharging of partially treated wastewater through an infiltration basin on the groundwater aquifer quality parameters. A monitoring program supported by a geographic information analysis (GIS) tool was used to conduct this study. Groundwater samples from the entire surrounding boreholes located downstream the infiltration basin, in addition to samples from the recharged wastewater coming from the Beit Lahia wastewater treatment (BLWWTP), were monitored and analysed between 2011 and 2014...
April 10, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28392621/the-places-parents-go-understanding-the-breadth-scope-and-experiences-of-activity-spaces-for-parents
#19
Jennifer Price Wolf, Bridget Freisthler, Nancy Jo Kepple, Raúl Chávez
Neighborhood environments are related to parenting behaviors, which in turn have a life-long effect on children's health and well-being. Activity spaces, which measure individual routine patterns of movement, may be helpful in assessing how physical and social environments shape parenting. In this study we use qualitative data and GIS mapping from 4 California cities to examine parental activity spaces. Parents described a number of factors that shape their activity spaces including caregiving status, the age of their children, and income...
April 2017: GeoJournal
https://www.readbyqxmd.com/read/28392067/cognitive-impacts-of-ambient-air-pollution-in-the-national-social-health-and-aging-project-nshap-cohort
#20
Lindsay A Tallon, Justin Manjourides, Vivian C Pun, Carmel Salhi, Helen Suh
BACKGROUND: Pathways through which air pollution may impact cognitive function are poorly understood, particularly with regard to whether and how air pollution interacts with social and emotional factors to influence cognitive health. OBJECTIVE: To examine the association between air pollutant exposures and cognitive outcomes among older adults participating in the National Social Life, Health, and Aging Project (NSHAP) cohort study. METHODS: Measures of cognitive function, social connectedness, and physical and mental health were obtained for each NSHAP participant starting with Wave 1 of the study in 2005...
April 6, 2017: Environment International
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