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https://www.readbyqxmd.com/read/29353114/toxic-hazards-of-ammonia-release-and-population-vulnerability-assessment-using-geographical-information-system
#1
N S Anjana, A Amarnath, M V Harindranathan Nair
Today, chemical industries manufacture, store and transport evermore hazardous substances and hence the risk of accidental releases of these chemicals can become more and more catastrophic in the context of increasing population and their requirements. The damage potential is proportional to the population characteristics of the location as well as various meteorological factors and geographical features. For the risk assessment of ammonia toxicity, the storage facility at Eloor industrial area is taken as a sample...
January 15, 2018: Journal of Environmental Management
https://www.readbyqxmd.com/read/29352687/what-influence-does-the-time-of-year-have-on-postoperative-complications-following-total-knee-arthroplasty
#2
Nipun Sodhi, Nicolas S Piuzzi, Sarah E Dalton, Jaiben George, Mitchell Ng, Anton Khlopas, Assem A Sultan, Carlos A Higuera, Michael A Mont
BACKGROUND: The time of year might influence the occurrence of surgical complications. Therefore, this study investigated correlations between the time-of-year and 30-day postoperative complication rates following primary total knee arthroplasty (TKA). Specifically, we determined (1) postoperative complication rates across all quarters; and (2) time-of-year influence on complications using univariate and multivariate regression analyses. METHODS: CPT code 27447 identified 147,473 TKAs from the NSQIP database...
December 28, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29351048/academic-community-partnership-educating-children-about-weather-related-disaster-preparedness
#3
Melissa Foster, Elizabeth Barnby
Children are a population that has an increased risk of harm during any disaster events. This risk can be decreased by educating children in disaster preparedness skills. This article outlines a basic modifiable curriculum for teaching weather-related disaster preparedness to children ages 10-13, and shares how this was accomplished at an elementary school in North Alabama through a collaboration between the school and a local college of nursing.
January 1, 2018: NASN School Nurse
https://www.readbyqxmd.com/read/29350759/extreme-rainfall-affects-assembly-of-the-root-associated-fungal-community
#4
Christopher J Barnes, Christopher J van der Gast, Niall P McNamara, Rebecca Rowe, Gary D Bending
Global warming is resulting in increased frequency of weather extremes. Root-associated fungi play important roles in terrestrial biogeochemical cycling processes, but the way in which they are affected by extreme weather is unclear. Here, we performed long-term field monitoring of the root-associated fungus community of a short rotation coppice willow plantation, and compared community dynamics before and after a once in 100 yr rainfall event that occurred in the UK in 2012. Monitoring of the root-associated fungi was performed over a 3-yr period by metabarcoding the fungal internal transcribed spacer (ITS) region...
January 19, 2018: New Phytologist
https://www.readbyqxmd.com/read/29349103/wildfire-spread-hazard-and-exposure-metric-raster-grids-for-central-catalonia
#5
Fermín J Alcasena, Alan A Ager, Michele Salis, Michelle A Day, Cristina Vega-Garcia
We provide 40 m resolution wildfire spread, hazard and exposure metric raster grids for the 0.13 million ha fire-prone Bages County in central Catalonia (northeastern Spain) corresponding to node influence grid (NIG), crown fraction burned (CFB) and fire transmission to residential houses (TR). Fire spread and behavior data (NIG, CFB and fire perimeters) were generated with fire simulation modeling considering wildfire season extreme fire weather conditions (97th percentile). Moreover, CFB was also generated for prescribed fire (Rx) mild weather conditions...
April 2018: Data in Brief
https://www.readbyqxmd.com/read/29348632/climate-degradation-and-extreme-icing-events-constrain-life-in-cold-adapted-mammals
#6
J Berger, C Hartway, A Gruzdev, M Johnson
Despite the growth in knowledge about the effects of a warming Arctic on its cold-adapted species, the mechanisms by which these changes affect animal populations remain poorly understood. Increasing temperatures, declining sea ice and altered wind and precipitation patterns all may affect the fitness and abundance of species through multiple direct and indirect pathways. Here we demonstrate previously unknown effects of rain-on-snow (ROS) events, winter precipitation, and ice tidal surges on the Arctic's largest land mammal...
January 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29347500/guidance-of-microswimmers-by-wall-and-flow-thigmotaxis-and-rheotaxis-of-unsteady-squirmers-in-two-and-three-dimensions
#7
Kenta Ishimoto
The motions of an unsteady circular-disk squirmer and a spherical squirmer have been investigated in the presence of a no-slip infinite wall and a background shear flow in order to clarify the similarities and differences between two- and three-dimensional motions. Despite the similar bifurcation structure of the dynamical system, the stability of the fixed points differs due to the Hamiltonian structure of the disk squirmer. Once the unsteady oscillating surface velocity profile is considered, the disk squirmer can behave in a chaotic manner and cease to be confined in a near-wall region...
October 2017: Physical Review. E
https://www.readbyqxmd.com/read/29347024/dimensionless-embedding-for-nonlinear-time-series-analysis
#8
Yoshito Hirata, Kazuyuki Aihara
Recently, infinite-dimensional delay coordinates (InDDeCs) have been proposed for predicting high-dimensional dynamics instead of conventional delay coordinates. Although InDDeCs can realize faster computation and more accurate short-term prediction, it is still not well-known whether InDDeCs can be used in other applications of nonlinear time series analysis in which reconstruction is needed for the underlying dynamics from a scalar time series generated from a dynamical system. Here, we give theoretical support for justifying the use of InDDeCs and provide numerical examples to show that InDDeCs can be used for various applications for obtaining the recurrence plots, correlation dimensions, and maximal Lyapunov exponents, as well as testing directional couplings and extracting slow-driving forces...
September 2017: Physical Review. E
https://www.readbyqxmd.com/read/29345516/association-between-weather-related-factors-and-cardiac-arrest-of-presumed-cardiac-etiology-a-prospective-observational-study-based-on-out-of-hospital-care-data
#9
Mario Hensel, Daniel Geppert, Jan F Kersten, Markus Stuhr, Jürgen Lorenz, Sebastian Wirtz, Thoralf Kerner
OBJECTIVE: The objective of this study was to determine the association between weather-related factors and out-of-hospital cardiac arrest (OHCA) of presumed cardiac etiology. METHODS: This was a prospective observational study performed in a prehospital setting. Data from the Emergency Medical Service in Hamburg (Germany) and data from the local weather station were evaluated over a 5-year period. Weather data (temperature, humidity, air pressure, wind speed) were obtained every minute and matched with the associated rescue mission data...
January 18, 2018: Prehospital Emergency Care
https://www.readbyqxmd.com/read/29344735/hydrochemistry-and-water-quality-of-rewalsar-lake-of-lesser-himalaya-himachal-pradesh-india
#10
Pawan Kumar Gaury, Narendra Kumar Meena, A K Mahajan
The present research is to study hydrochemistry and water quality of Rewalsar Lake during pre-monsoon, monsoon, and post-monsoon seasons. The Ca2+ and Na+ are observed as the dominant cations from pre- to post-monsoon season. On the other hand, HCO3- and Cl- are observed dominant anions during pre-monsoon and monsoon seasons, whereas HCO3- and SO42- during post-monsoon season. The comparison of alkaline earth metals with alkali metals and total cations (Tz+) has specified that the carbonate weathering is the dominant source of major ions in the water of lake...
January 17, 2018: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/29344472/status-epilepticus-as-an-unusual-manifestation-of-heat-stroke
#11
Won Gu Lee, So-Young Huh, Jin-Hyung Lee, Bong Goo Yoo, Meyung Kug Kim
Heat stroke (HS) is a medical emergency and life threatening condition, characterized by body temperature over 40°C. This can lead to dysfunction of multiple organs such as the heart, liver, kidneys, lungs, blood coagulation system, and central nervous system. Neurological complications include change in consciousness, cerebellar dysfunction, convulsions, aphasia, muscular weakness, and parkinsonism. Cerebellar syndrome is the most common neurological finding in HS. We report a case of HS presenting with status epilepticus, without any other neurological manifestations...
December 2017: Journal of Epilepsy Research
https://www.readbyqxmd.com/read/29343796/integrated-climate-chemical-indicators-of-diffuse-pollution-from-land-to-water
#12
Per-Erik Mellander, Phil Jordan, Marianne Bechmann, Ophélie Fovet, Mairead M Shore, Noeleen T McDonald, Chantal Gascuel-Odoux
Management of agricultural diffuse pollution to water remains a challenge and is influenced by the complex interactions of rainfall-runoff pathways, soil and nutrient management, agricultural landscape heterogeneity and biogeochemical cycling in receiving water bodies. Amplified cycles of weather can also influence nutrient loss to water although they are less considered in policy reviews. Here, we present the development of climate-chemical indicators of diffuse pollution in highly monitored catchments in Western Europe...
January 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29343762/mercury-sodium-exospheric-emission-as-a-proxy-for-solar-perturbations-transit
#13
Stefano Orsini, Valeria Mangano, Anna Milillo, Christina Plainaki, Alessandro Mura, Jim M Raines, Elisabetta De Angelis, Rosanna Rispoli, Francesco Lazzarotto, Alessandro Aronica
The first evidence at Mercury of direct relation between ICME transit and Na exosphere dynamics is presented, suggesting that Na emission, observed from ground, could be a proxy of planetary space weather at Mercury. The link existing between the dayside exosphere Na patterns and the solar wind-magnetosphere-surface interactions is investigated. This goal is pursued by analyzing the Na intensity hourly images, as observed by the ground-based THEMIS solar telescope during 10 selected periods between 2012 and 2013 (with seeing, σ < = 2″), when also MESSENGER data were available...
January 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29342973/biogenic-weathering-solubilization-of-iron-from-minerals-by-epilithic-freshwater-algae-and-cyanobacteria
#14
George E Mustoe
A sandstone outcrop exposed to freshwater seepage supports a diverse assemblage of photosynthetic microbes. Dominant taxa are two cyanophytes (Oscillatoria sp., Rivularia sp.) and a unicellular green alga (Palmellococcus sp.). Less abundant taxa include a filamentous green alga, Microspora, and the desmid Cosmarium. Biologic activity is evidenced by measured levels of chlorophyll and lipids. Bioassay methods confirm the ability of these microbes to dissolve and metabolize Fe from ferruginous minerals. Chromatographic analysis reveals citric acid as the likely chelating agent; this low molecular weight organic acid is detectable in interstitial fluid in the sandstone, measured as 0...
January 15, 2018: Microorganisms
https://www.readbyqxmd.com/read/29342208/comparison-of-traffic-injury-related-hospitalisation-between-bicyclists-and-motorcyclists-in-taiwan
#15
Chih-Wei Pai, Hsiao-Yu Lin, Shin-Han Tsai, Ping-Ling Chen
OBJECTIVES: Bicyclists and motorcyclists contribute substantially to the morbidity and mortality rates of road crash casualties. The objective of the study was to investigate the crash characteristics of bicyclist and motorcyclist casualties presented to hospitals in Taiwan resulting from crashes. METHODS: By using linked data from The National Traffic Crash Dataset and the National Health Insurance Database between 2003 and 2012, logistic regression models were used to examine the determinants of hospitalisation among motorcyclist and bicyclist casualties...
2018: PloS One
https://www.readbyqxmd.com/read/29341800/factors-associated-with-patient-satisfaction-in-an-outpatient-glaucoma-population
#16
Kamran Rahmatnejad, Jonathan S Myers, Megan E Falls, Sarah R Myers, Michael Waisbourd, Lisa A Hark
PURPOSE: To determine what metrics might impact satisfaction survey responses. METHODS: A 37-question survey was administered to 249 participants. Responses were correlated to demographics, clinical factors, weather conditions, and examination timing. RESULTS: Sample consists of 55.4% female and 73.9% white, and mean age was 65.1 years. Participants were assigned to: completely satisfied (77.9%) or not completely satisfied (22.1%) groups based on their rating of glaucoma specialist on a scale of 1-10, while 10 considered "completely satisfied" and less than 10 "not completely satisfied...
January 17, 2018: Seminars in Ophthalmology
https://www.readbyqxmd.com/read/29340852/a-geochemical-view-into-continental-palaeotemperatures-of-the-end-permian-using-oxygen-and-hydrogen-isotope-composition-of-secondary-silica-in-chert-rubble-breccia-kaibab-formation-grand-canyon-usa
#17
Ray Kenny
The upper carbonate member of the Kaibab Formation in northern Arizona (USA) was subaerially exposed during the end Permian and contains fractured and zoned chert rubble lag deposits typical of karst topography. The karst chert rubble has secondary (authigenic) silica precipitates suitable for estimating continental weathering temperatures during the end Permian karst event. New oxygen and hydrogen isotope ratios of secondary silica precipitates in the residual rubble breccia: (1) yield continental palaeotemperature estimates between 17 and 22 °C; and, (2) indicate that meteoric water played a role in the crystallization history of the secondary silica...
January 16, 2018: Geochemical Transactions
https://www.readbyqxmd.com/read/29340721/geochemical-assessment-of-fluoride-pollution-in-groundwater-of-tribal-region-in-india
#18
Anshumali, Manish Kumar, Nikki Chanda, Abhay Kumar, Bijendra Kumar, Madavi Venkatesh
This study assessed the fluoride (F-) pollution in groundwater samples (n = 170) of tribal regions around Bailadila Iron Ore Mines [BIOM] Complex of Dantewada District, India. Weathering of carbonate and silicate clays were important geogenic sources of dissolved ions. A Piper diagram showed a Ca-HCO3 water type, with positive chloro-alkaline indices illustrating the occurrence of direct base-exchange reactions. The F- concentrations varied from 0.08 to 1.95 mg L-1 with a mean value of 0.9 ± 0.3 mg L-1...
January 16, 2018: Bulletin of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/29339625/acid-production-potentials-of-massive-sulfide-minerals-and-lead-zinc-mine-tailings-a-medium-term-study
#19
Emin Ender Çelebi, Mehmet Salim Öncel, Mehmet Kobya
Weathering of sulfide minerals is a principal source of acid generation. To determine acid-forming potentials of sulfide-bearing materials, two basic approaches named static and kinetic tests are available. Static tests are short-term, and easily undertaken within a few days and in a laboratory. In contrast, kinetic tests are long-term procedures and mostly carried out on site. In this study, experiments were conducted over a medium-term period of 2 months, not as short as static tests and also not as long as kinetic tests...
January 2018: Water Science and Technology: a Journal of the International Association on Water Pollution Research
https://www.readbyqxmd.com/read/29339266/long-term-trend-analysis-on-total-and-extreme-precipitation-over-shasta-dam-watershed
#20
Kinya Toride, Dylan L Cawthorne, Kei Ishida, M Levent Kavvas, Michael L Anderson
California's interconnected water system is one of the most advanced water management systems in the world, and understanding of long-term trends in atmospheric and hydrologic behavior has increasingly being seen as vital to its future well-being. Knowledge of such trends is hampered by the lack of long-period observation data and the uncertainty surrounding future projections of atmospheric models. This study examines historical precipitation trends over the Shasta Dam watershed (SDW), which lies upstream of one of the most important components of California's water system, Shasta Dam, using a dynamical downscaling methodology that can produce atmospheric data at fine time-space scales...
January 13, 2018: Science of the Total Environment
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