keyword
MENU ▼
Read by QxMD icon Read
search

Environmental load

keyword
https://www.readbyqxmd.com/read/28651395/-analysis-of-dietary-pattern-and-diabetes-mellitus-influencing-factors-identified-by-classification-tree-model-in-adults-of-fujian
#1
F L Yu, Y Ye, Y S Yan
Objective: To find out the dietary patterns and explore the relationship between environmental factors (especially dietary patterns) and diabetes mellitus in the adults of Fujian. Methods: Multi-stage sampling method were used to survey residents aged ≥18 years by questionnaire, physical examination and laboratory detection in 10 disease surveillance points in Fujian. Factor analysis was used to identify the dietary patterns, while logistic regression model was applied to analyze relationship between dietary patterns and diabetes mellitus, and classification tree model was adopted to identify the influencing factors for diabetes mellitus...
May 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28651076/application-of-water-assisted-ultraviolet-light-in-combination-of-chlorine-and-hydrogen-peroxide-to-inactivate-salmonella-on-fresh-produce
#2
Shuanghuan Guo, Runze Huang, Haiqiang Chen
With the demand for fresh produce increases in recent decades, concerns for microbiological safety of fresh produce are also raised. To identify effective ultraviolet (UV) light treatment for fresh produce decontamination, we first determined the effect of three forms of UV treatment, dry UV (samples were treated by UV directly), wet UV (samples were dipped in water briefly and then exposed to UV), and water-assisted UV (samples were treated by UV while being immersed in agitated water) on inactivation of Salmonella inoculated on tomatoes and fresh-cut lettuce...
June 19, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/28650626/selenium-sequestration-in-a-cationic-layered-rare-earth-hydroxide-a-combined-batch-experiments-and-exafs-investigation
#3
Lin Zhu, Linjuan Zhang, Jie Li, Duo Zhang, Lanhua Chen, Daopeng Sheng, Shitong Yang, Chengliang Xiao, Jianqiang Wang, Zhifang Chai, Thomas E Albrecht-Schmitt, Shuao Wang
Selenium is of great concern owing to its acutely toxic characteristic at elevated dosage and the long-term radiotoxicity of 79Se. The contents of selenium in industrial wastewater, agricultural runoff, and drinking water have to be constrained to a value of 10 μg/L as the maximum concentration limit. We reported here the selenium uptake using a structurally well-defined cationic layered rare earth hydroxide, Y2(OH)5Cl•1.5H2O. The sorption kinetics, isotherms, selectivity, and desorption of selenite and selenate on Y2(OH)5Cl•1...
June 26, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28649366/pneumocystis-jirovecii-detection-in-asymptomatic-patients-what-does-its-natural-history-tell-us
#4
REVIEW
Alexandre Alanio, Stéphane Bretagne
Pneumocystis jirovecii is an unusual ascomycetous fungus that can be detected in the lungs of healthy individuals. Transmission from human to human is one of its main characteristics in comparison with other fungi responsible for invasive infections. P. jirovecii is transmitted through the air between healthy individuals, who are considered to be the natural reservoir, at least transiently. In immunocompromised patients, P. jirovecii multiplies, leading to subacute infections and acute life-threatening pneumonia, called Pneumocystis pneumonia [PCP]...
2017: F1000Research
https://www.readbyqxmd.com/read/28647876/characteristics-and-effects-of-dissolved-organic-phosphorus-from-different-sources-on-the-water-quality-of-erhai-lake-in-southwest-china
#5
Ningning Ji, Shengrui Wang, Li Zhang, Zhaokui Ni
To establish the influence of dissolved organic phosphorus (DOP) from different sources on the water quality of Erhai Lake in August 2014, enzymatic hydrolysis technology was used to characterize enzymatically hydrolyzable phosphorus (EHP). The results indicate that the DOP represents a significant source of the bioavailable P in the lake water and its different sources of Erhai Lake, and the bioavailability of the P pool may be underestimated by up to 55% if DOP is ignored and only the soluble-reactive phosphorus (SRP) is considered...
June 24, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28646775/consequences-of-intensive-forest-harvesting-on-the-recovery-of-swedish-lakes-from-acidification-and-on-critical-load-exceedances
#6
Filip Moldan, Johanna Stadmark, Jens Fölster, Sara Jutterström, Martyn N Futter, Bernard J Cosby, Richard F Wright
Across much of the northern hemisphere, lakes are at risk of re-acidification due to incomplete recovery from historical acidification and pressures associated with more intensive forest biomass harvesting. Critical load (CL) calculations aimed at estimating the amount of pollutants an ecosystem can receive without suffering adverse consequences are dependent on these factors. Here, we present a modelling study of the potential effects of intensified forest harvesting on re-acidification of a set of 3239 Swedish lakes based on scenarios with varying intensities of forest biomass harvest and acid deposition...
June 21, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28645709/aquatic-biodiversity-in-sedimentation-ponds-receiving-road-runoff-what-are-the-key-drivers
#7
Zhenhua Sun, John E Brittain, Ekaterina Sokolova, Helene Thygesen, Svein Jakob Saltveit, Sebastien Rauch, Sondre Meland
Recently, increased attention has been paid to biodiversity conservation provided by blue-green solutions such as engineered ponds that are primarily established for water treatment and flood control. However, little research has been done to analyse the factors that affect biodiversity in such ponds. The purpose of this study was to evaluate the influence of environmental factors on aquatic biodiversity, mainly macroinvertebrate communities, in road sedimentation ponds in order to provide a foundation for recommendations on aquatic biodiversity conservation...
June 20, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28644617/dynamic-covalent-chemistry-of-carbon-dioxide-opportunities-to-address-environmental-issues
#8
Jean Septavaux, Geoffroy Germain, Julien Leclaire
Extraction and purification of basic chemicals from complex mixtures has been a persistent issue throughout the development of the chemical sciences. The chemical industry and academic research have grown over the centuries by following a deconstruction-reconstruction approach, reminiscent of the metabolism process. Chemists have designed and optimized extraction, purification, and transformation processes of molecules from natural deposits (fossil fuels, biomass, ores), in order to reassemble them into complex adducts...
June 23, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/28641745/long-term-stability-of-an-injection-molded-zirconia-bone-level-implant-a-testing-protocol-considering-aging-kinetics-and-dynamic-fatigue
#9
Benedikt C Spies, Madeleine E Maass, Erik Adolfsson, Valter Sergo, Tobias Kiemle, Christoph Berthold, Elisa Gurian, Stefano Fornasaro, Kirstin Vach, Ralf-Joachim Kohal
OBJECTIVE: Separately addressing the fatigue resistance (ISO 14801, evaluation of final product) and aging behavior (ISO 13356, standardized sample) of oral implants made from yttria-stabilized zirconia proved to be insufficient in verifying their long-term stability, since (1) implant processing is known to significantly influence transformation kinetics and (2) aging, up from a certain level, is liable to decrease fatigue resistance. Therefore, the aim of this investigation was to apply a new testing protocol considering environmental conditions adequately inducing aging during dynamic fatigue...
June 19, 2017: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/28641605/state-dependent-parasitism-by-a-facultative-parasite-of-fruit-flies
#10
Lien T Luong, Taylor Brophy, Emily Stolz, Solomon J Chan
Parasites can evolve phenotypically plastic strategies for transmission such that a single genotype can give rise to a range of phenotypes depending on the environmental condition. State-dependent plasticity in particular can arise from individual differences in the parasite's internal state or the condition of the host. Facultative parasites serve as ideal model systems for investigating state-dependent plasticity because individuals can exhibit two life history strategies (free-living or parasitic) depending on the environment...
June 23, 2017: Parasitology
https://www.readbyqxmd.com/read/28639212/surveillance-of-noroviruses-in-rio-de-janeiro-brazil-occurrence-of-new-giv-genotype-in-clinical-and-wastewater-samples
#11
Julia Monassa Fioretti, Tulio Machado Fumian, Mônica Simões Rocha, Ingrid de Arruda Lucena Dos Santos, Filipe Aníbal Carvalho-Costa, Matheus Ribeiro de Assis, Janaina de Souza Rodrigues, José Paulo Gagliardi Leite, Marize Pereira Miagostovich
Genogroup (G) IV norovirus (NoV) has been described in the literature as infectious agents in humans, although there are few reports regarding the frequency and spread of this virus, resulting in insufficient epidemiological data. The aim of this study was to investigate the occurrence of GIV norovirus in the State of Rio de Janeiro, Brazil in order to evaluate frequency, concentration, and genetic diversity using clinical and environmental approaches. For this purpose, 316 stool samples were collected from acute gastroenteritis cases reported over a period of three years...
June 21, 2017: Food and Environmental Virology
https://www.readbyqxmd.com/read/28637341/assessment-of-workers-exposure-to-grain-dust-and-bioaerosols-during-the-loading-of-vessels-hold-an-example-at-a-port-in-the-province-of-qu%C3%A3-bec
#12
Geneviève Marchand, Marie Gardette, Kiet Nguyen, Valérie Amano, Eve Neesham-Grenon, Maximilien Debia
Longshoremen are exposed to large amounts of grain dust while loading of grain into the holds of vessels. Grain dust inhalation has been linked to respiratory diseases such as chronic bronchitis, hypersensitivity, pneumonitis, and toxic pneumonitis. Our objective was to characterize the exposure of longshoremen to inhalable and total dust, endotoxins, and cultivable bacteria and fungi during the loading of grain in a vessel's hold at the Port of Montreal in order to assess the potential health risks. Sampling campaigns were conducted during the loading of two different types of grain (wheat and corn)...
June 15, 2017: Annals of Work Exposures and Health
https://www.readbyqxmd.com/read/28635641/the-fate-of-pollutants-in-porous-asphalt-pavements-laboratory-experiments-to-investigate-their-potential-to-impact-environmental-health
#13
Susanne M Charlesworth, Jamie Beddow, Ernest O Nnadi
Pervious Paving Systems (PPS) are part of a sustainable approach to drainage in which excess surface water is encouraged to infiltrate through their structure, during which potentially toxic elements, such as metals and hydrocarbons are treated by biodegradation and physical entrapment and storage. However, it is not known where in the PPS structure these contaminants accumulate, which has implications for environmental health, particularly during maintenance, as well as consequences for the recycling of material from the PPS at the end-of-life...
June 21, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28634799/assessment-of-heat-inactivated-marine-aspergillus-flavus-as-a-novel-biosorbent-for-removal-of-cd-ii-hg-ii-and-pb-ii-from-water
#14
Mohamed E Mahmoud, Gehan M El Zokm, Aida E M Farag, Mohamed S Abdelwahab
A novel marine fungus was isolated and classified as Aspergillus flavus strain EGY11. The heat-inactivated form of isolated Aspergillus flavus was investigated and evaluated as a new eco-friendly and highly efficient biosorbent for removal of toxic heavy metals such as Cd(II), Hg(II), and Pb(II) from aqueous solutions. The SEM morphological studies of biosorbent-loaded metal ions confirmed their direct binding on the surface of heat-inactivated Aspergillus flavus. The metal biosorption capacity values were determined and optimized by the batch technique in the presence of various experimental controlling factors such as pH, contact time, biosorbent dosage, initial metal ion concentration, and coexisting species...
June 20, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28633837/synthesis-and-characterization-of-zns-ni-nps-loaded-on-ac-derived-from-apple-tree-wood-and-their-applicability-for-the-ultrasound-assisted-comparative-adsorption-of-cationic-dyes-based-on-the-experimental-design
#15
Hossein Zare Khafri, Mehrorang Ghaedi, Arash Asfaram, Mohammad Safarpoor
The applicability of ZnS:Ni nanoparticles loaded on activated carbon derived from apple tree wood (ZnS:Ni-NPs-ACATW) for the adsorption of Methylene Blue (MB) and Janus Green B (JGB) dyes in single system from water solution has been described. The synthesized adsorbent characterized and identified by UV-Vis, FE-SEM, EDX, TEM, FTIR and XRD. The influences of operation parameters including initial MB or JGB concentration (9.0-33.0mgL(-1)), pH (4.0-10.0), extent of adsorbent (0.08-0.12g) and sonication time (4...
September 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28633833/recent-advances-in-ultrasonic-treatment-challenges-and-field-applications-for-controlling-harmful-algal-blooms-habs
#16
REVIEW
Jungsu Park, Jared Church, Younggyu Son, Keug-Tae Kim, Woo Hyoung Lee
Algal blooms are a naturally occurring phenomenon which can occur in both freshwater and saltwater. However, due to excess nutrient loading in water bodies (e.g. agricultural runoff and industrial activities), harmful algal blooms (HABs) have become an increasing issue globally, and can even cause health effects in humans due to the release of cyanotoxins. Among currently available treatment methods, sonication has received increasing attention for algal control because of its low impact on ecosystems and the environment...
September 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28633064/an-innovative-approach-to-bioremediation-of-mercury-contaminated-soils-from-industrial-mining-operations
#17
Damien McCarthy, Grant C Edwards, Mae S Gustin, Andrew Care, Matthieu B Miller, Anwar Sunna
Soils contaminated with mercury (Hg) have proved expensive and logistically difficult to remediate. Research continues into finding suitable environmentally-friendly and efficient ways of achieving this end. Bioremediation is an option, which employs the strategies microorganisms have evolved to deal with Hg. One microbial strategy involves uptake and intracellular volatilisation of mercuric ions, which passively diffuse from the cell and back into the atmosphere. In this work, Pseudomonas veronii cells grown to stationary phase were immobilised in a xanthan gum-based biopolymer via encapsulation...
June 14, 2017: Chemosphere
https://www.readbyqxmd.com/read/28630407/colony-adaptive-response-to-simulated-heat-waves-and-consequences-at-the-individual-level-in-honeybees-apis-mellifera
#18
Célia Bordier, Hélène Dechatre, Séverine Suchail, Mathilde Peruzzi, Samuel Soubeyrand, Maryline Pioz, Michel Pélissier, Didier Crauser, Yves Le Conte, Cédric Alaux
Since climate change is expected to bring more severe and frequent extreme weather events such as heat waves, assessing the physiological and behavioural sensitivity of organisms to temperature becomes a priority. We therefore investigated the responses of honeybees, an important insect pollinator, to simulated heat waves (SHW). Honeybees are known to maintain strict brood thermoregulation, but the consequences at the colony and individual levels remain poorly understood. For the first time, we quantified and modelled colony real-time activity and found a 70% increase in foraging activity with SHW, which was likely due to the recruitment of previously inactive bees...
June 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28628882/effective-biotransformation-and-detoxification-of-anthraquinone-dye-reactive-blue-4-by-using-aerobic-bacterial-granules
#19
Ashvini U Chaudhari, Dhiraj Paul, Dhiraj Dhotre, Kisan M Kodam
Treatment of textile wastewater containing anthraquinone dye is quite a huge challenge due to its complex aromatic structure and toxicity. Present study deals with the degradation and detoxification of anthraquinone dye reactive blue 4 using aerobic bacterial granules. Bacterial granules effectively decolorized reactive blue 4 at wide range of pH (4.0-11.0) and temperature (20-55 °C) as well as decolorized and tolerated high concentration of reactive blue 4 dye upto 1000 mg l(-1) with Vmax 6.16 ± 0...
June 3, 2017: Water Research
https://www.readbyqxmd.com/read/28628817/dynamics-of-dissolved-nutrients-in-the-aquaculture-shrimp-ponds-of-the-min-river-estuary-china-concentrations-fluxes-and-environmental-loads
#20
Ping Yang, Derrick Y F Lai, Baoshi Jin, David Bastviken, Lishan Tan, Chuan Tong
Dissolved inorganic nutrients (NO2(-)-N, NO3(-)-N, NH4(+)-N, and PO4(3-)-P) play a critical role in the effective management of water quality and prevention of fish and shrimp diseases in aquaculture systems. In this study, dissolved inorganic nutrient concentrations in the water column and sediment porewater, and the fluxes across the sediment-water interface (SWI) were investigated in three intensive shrimp ponds with zero water exchange to examine nutrient cycling during the different growth stages of shrimps...
June 16, 2017: Science of the Total Environment
keyword
keyword
95905
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"