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https://www.readbyqxmd.com/read/29054650/vitamin-b12-effects-on-chlorinated-methanes-degrading-microcosms-dual-isotope-and-metabolically-active-microbial-populations-assessment
#1
Diana Rodríguez-Fernández, Clara Torrentó, Miriam Guivernau, Marc Viñas, Daniel Hunkeler, Albert Soler, Cristina Domènech, Mònica Rosell
Field-derived anoxic microcosms were used to characterize chloroform (CF) and carbon tetrachloride (CT) natural attenuation to compare it with biostimulation scenarios in which vitamin B12 was added (B12/pollutant ratio of 0.01 and 0.1) by means of by-products, carbon and chlorine compound-specific stable-isotope analysis, and the active microbial community through 16S rRNA MiSeq high-throughput sequencing. Autoclaved slurry controls discarded abiotic degradation processes. B12 catalyzed CF and CT biodegradation without the accumulation of dichloromethane, carbon disulphide, or CF...
October 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29054631/-green-technology-bio-stimulation-by-an-electric-field-for-textile-reactive-dye-contaminated-agricultural-soil
#2
Sivasankar Annamalai, Manikandan Santhanam, Subbulakshmi Selvaraj, Maruthamuthu Sundaram, Kannan Pandian, Marta Pazos
The aim of the study is to degrade pollutants as well as to increase the fertility of agricultural soil by starch enhancing electrokinetic (EKA) and electro-bio-stimulation (EBS) processes. Starch solution was used as an anolyte and voltage gradient was about 0.5V/cm. The influence of bacterial mediated process was evaluated in real contaminated farming soil followed by pilot scale experiment. The in-situ formation of β-cyclodextrin from starch in the treatments had also influence on the significant removal of the pollutants from the farming soil...
October 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29054629/arsenic-removal-by-japanese-oak-wood-biochar-in-aqueous-solutions-and-well-water-investigating-arsenic-fate-using-integrated-spectroscopic-and-microscopic-techniques
#3
Nabeel Khan Niazi, Irshad Bibi, Muhammad Shahid, Yong Sik Ok, Sabry M Shaheen, Jörg Rinklebe, Hailong Wang, Behzad Murtaza, Ejazul Islam, M Farrakh Nawaz, Andreas Lüttge
In this study, we examined the sorption of arsenite (As(III)) and arsenate (As(V)) to Japanese oak wood-derived biochar (OW-BC) in aqueous solutions, and determined its efficiency to remove As from As-contaminated well water. Results revealed that, among the four sorption isotherm models, Langmuir model showed the best fit to describe As(III) and As(V) sorption on OW-BC, with slightly greater sorption affinity for As(V) compared to As(III) (QL=3.89 and 3.16mgg(-1); R(2)=0.91 and 0.85, respectively). Sorption edge experiments indicated that the maximum As removal was 81% and 84% for As(III)- and As(V)-OW-BC systems at pH7 and 6, respectively, which decreased above these pH values (76-69% and 80-58%)...
October 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29054616/green-synthesized-nanoclusters-of-ultra-small-zero-valent-iron-nanoparticles-as-a-novel-dye-removing-material
#4
Alireza Ebrahiminezhad, Saeed Taghizadeh, Younes Ghasemi, Aydin Berenjian
Iron based nanoparticles have gained much attention in recent years due to their unique physicochemical properties especially in the environmental remediation practices. There has been an increasing demand for new sustainable techniques for production of these nanoparticles. In the present work, a novel iron nanostructure was successfully fabricated by a facile and green approach using the aqueous extract of Mediterranean cypress (Cupressus sempervirens). In fact, nanoclusters of highly reactive ultra-small (~1...
October 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29053999/correlations-and-adsorption-mechanisms-of-aromatic-compounds-on-biochars-produced-from-various-biomass-at-700%C3%A2-%C3%A2-c
#5
Kun Yang, Yuan Jiang, Jingjing Yang, Daohui Lin
Knowledge of adsorption behavior of organic contaminants on high heat temperature treated biochars is essential for application of biochars as adsorbents in wastewater treatment and soil remediation. In this study, isotherms of 25 aromatic compounds adsorption on biochars pyrolyzed at 700 °C from biomass including wood chips, rice straw, bamboo chips, cellulose, lignin and chitin were investigated to establish correlations between adsorption behavior and physicochemical properties of biochars. Isotherms were well fitted by Polanyi theory-based Dubinin-Ashtakhov (DA) model with three parameters, i...
October 17, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/29053684/remotely-supervised-transcranial-direct-current-stimulation-an-update-on-safety-and-tolerability
#6
Michael T Shaw, Margaret Kasschau, Bryan Dobbs, Natalie Pawlak, William Pau, Kathleen Sherman, Marom Bikson, Abhishek Datta, Leigh E Charvet
The remotely supervised tDCS (RS-tDCS) protocol enables participation from home through guided and monitored self-administration of tDCS treatment while maintaining clinical standards. The current consensus regarding the efficacy of tDCS is that multiple treatment sessions are needed to observe targeted behavioral reductions in symptom burden. However, the requirement for patients to travel to clinic daily for stimulation sessions presents a major obstacle for potential participants, due to work or family obligations or limited ability to travel...
October 7, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29053368/phytostabilization-potential-of-ornamental-plants-grown-in-soil-contaminated-with-cadmium
#7
Peng Zeng, Zhaohui Guo, Xia Cao, Xiyuan Xiao, Yanan Liu, Lei Shi
In a greenhouse experiment, five ornamental plants, Osmanthus fragrans (OF), Ligustrum vicaryi L. (LV), Cinnamomum camphora (CC), Loropetalum chinense var. rubrum (LC), and Euonymus japonicas cv. Aureo-mar (EJ), were studied for the ability to phytostabilization for Cd-contaminated soil. The results showed that these five ornamental plants can grow normally when the soil Cd content is less than 24.6 mg·kg(-1). Cd was mainly deposited in the roots of OF, LV, LC and EJ which have grown in Cd-contaminated soils, and the maximum Cd contents reached 15...
October 20, 2017: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/29053350/melatonin-affects-the-growth-and-cadmium-accumulation-of-malachium-aquaticum-and-galinsoga-parviflora
#8
Yi Tang, Lijin Lin, Yongdong Xie, Ji Liu, Guochao Sun, Huanxiu Li, Ming'an Liao, Zhihui Wang, Dong Liang, Hui Xia, Xun Wang, Jing Zhang, Zejing Liu, Zhi Huang, Zhongqun He, Lihua Tu
Phytoremediation technology has become one of the main techniques for remediating soils polluted by heavy metals because it does not damage the environment, but heavy metal-tolerant plants have the disadvantages of low biomass and slow growth. A pot experiment was conducted to study the effects of melatonin (Mel) on growth and cadmium (Cd) accumulation in the Cd accumulator Malachium aquaticum and hyperaccumulator Galinsoga parviflora by spraying different concentrations of Mel on them. The results showed that shoot biomass, photosynthetic pigment content and antioxidant enzyme activity were increased in both species after Mel was sprayed on their leaves...
October 20, 2017: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/29053343/efficiency-of-opuntia-ficus-in-the-phytoremediation-of-a-soil-contaminated-with-used-motor-oil-and-lead-compared-to-that-of-lolium-perenne-and-aloe-barbadendis
#9
Luisa F Escobar-Alvarado, Mabel Vaca-Mier, Raymundo López-Callejas, Ma Neftalí Rojas-Valencia
Industrial pollutants such as heavy metals and hydrocarbons in soils represent a serious concern due to their persistence and negative effects on the environment, affecting cellular processes in living organisms and even causing mutations and cancer. The main objectives of this work were to evaluate the efficiency of Opuntia ficus in the phytoremediation of a soil polluted with used motor oil. Two other species, one with different and one with similar characteristics, relatively, were used for comparison purposes: Lolium perenne and Aloe barbadensis...
October 20, 2017: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/29053261/influence-of-scale-on-biomass-growth-and-nutrient-removal-in-an-algal-bacterial-leachate-treatment-system
#10
Kaitlyn D Sniffen, Jacob Ryan Price, Christopher M Sales, Mira Olson
Data collected from experiments conducted at a flask scale are regularly used as input data for life cycle assessments and techno-economic analyses for predicting the potential productivities of large scale commercial facilities. This study measures and compares nitrogen removal and biomass growth rates in treatment systems that utilize an algae-bacteria consortium to remediate landfill leachate at three scales: small (0.25L), mid (100L) and large (1000L). The mid- and large-scale vessels were run for 52 consecutive weeks as semi-batch reactors under variable environmental conditions...
October 20, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/29050883/evaluation-of-antimicrobial-potential-of-successive-extracts-of-ulmus-wallichiana-planch
#11
Kundan Singh Bora, Akhilesh Kumar, Gajraj Bisht
BACKGROUND: The plant Ulmus wallichiana Planch. is found in hills of Uttarakhand, India. Bark of U. wallichiana is commonly used as traditional healer for bone fracture of animals as well as human beings and also used as wound healer remedy. OBJECTIVE: The present study was designed to evaluate antimicrobial potential of various extracts of U. wallichiana bark. MATERIALS AND METHODS: Soxhlet extraction method was used for preparation of different extracts viz...
October 16, 2017: Journal of Ayurveda and Integrative Medicine
https://www.readbyqxmd.com/read/29049942/bioaugmentation-of-thiabendazole-contaminated-soils-from-a-wastewater-disposal-site-factors-driving-the-efficacy-of-this-strategy-and-the-diversity-of-the-indigenous-soil-bacterial-community
#12
Evangelia S Papadopoulou, Savvas Genitsaris, Michalis Omirou, Chiara Perruchon, Anastasia Stamatopoulou, Ioannis Ioannides, Dimitrios G Karpouzas
The application of the fungicide thiabendazole (TBZ) in fruit packaging plants (FPP) results in the production of effluents which are often disposed in adjacent field sites. These require remediation to prevent further environmental dispersal of TBZ. We assessed the bioaugmentation potential of a newly isolated TBZ-degrading bacterial consortium in a naturally contaminated soil (NCS) exhibiting a natural gradient of TBZ levels (12000, 400, 250 and 12 mg kg(-1)). The effect of aging on bioaugmentation efficacy was comparatively tested in a soil with similar physicochemical properties and soil microbiota, which was artificially, contaminated with the same TBZ levels (ACS)...
October 16, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/29049920/factors-associated-with-vision-related-quality-of-life-among-the-adult-population-living-in-nagorno-karabagh
#13
T Harutyunyan, A Giloyan, V Petrosyan
OBJECTIVES: Visual impairment and blindness are major public health problems causing significant suffering, disability, loss of productivity, and diminishing quality of life for millions of people. This study explored the factors associated with the overall vision-related quality of life (VRQoL) and its different domains in the adult population of Nagorno Karabakh and assessed the independent contribution of specific eye diseases to VRQoL. STUDY DESIGN: A cross-sectional study...
October 16, 2017: Public Health
https://www.readbyqxmd.com/read/29049338/growing-plants-on-oily-nutrient-poor-soil-using-a-native-symbiotic-fungus
#14
Timothy S Repas, D Michael Gillis, Zakia Boubakir, Xiaohui Bao, Gary J Samuels, Susan G W Kaminskyj
The roots of land plants associate with microbes, including fungal symbionts that can confer abiotic stress tolerance. Bitumen extraction following oil-sand surface mining in the Athabasca region of Alberta, Canada removes plant nutrients but leaves a petrochemical residue, making the coarse tailings (CT) hostile to both plants and microbes. We isolated an endophyte strain of the Ascomycete Trichoderma harzianum we call TSTh20-1 (hereafter, TSTh) from a dandelion that was naturally growing on CT. TSTh colonization allowed tomato, wheat, and remediation seed mixtures to germinate and their seedlings to flourish on CT without the use of fertilizer...
2017: PloS One
https://www.readbyqxmd.com/read/29049014/transcriptomic-guided-drug-repositioning-supported-by-a-new-bioinformatics-search-tool-genexpharma
#15
Beste Turanli, Gizem Gulfidan, Kazim Yalcin Arga
Drug repositioning is an innovative approach to identify new therapeutic indications for existing drugs. Drug repositioning offers the promise of reducing drug development timeframes and costs, and because it involves drugs that are already in the clinic, it might remedy some of the drug safety challenges traditionally associated with drug candidates that are not yet available in the clinic. The gene-by-drug interactions are an important dimension of optimal drug repositioning and development strategies. While gene-by-drug interactions have been curated and presented in various databases, novel bioinformatics tools and approaches are timely, and required with a specific focus to support drug positioning...
October 2017: Omics: a Journal of Integrative Biology
https://www.readbyqxmd.com/read/29048884/nanotechnology-for-multimodal-synergistic-cancer-therapy
#16
Wenpei Fan, Bryant Yung, Peng Huang, Xiaoyuan Chen
The complexity, diversity, and heterogeneity of tumors seriously undermine the therapeutic potential of treatment. Therefore, the current trend in clinical research has gradually shifted from a focus on monotherapy to combination therapy for enhanced treatment efficacy. More importantly, the cooperative enhancement interactions between several types of monotherapy contribute to the naissance of multimodal synergistic therapy, which results in remarkable superadditive (namely "1 + 1 > 2") effects, stronger than any single therapy or their theoretical combination...
October 19, 2017: Chemical Reviews
https://www.readbyqxmd.com/read/29048576/monitoring-characteristics-and-genotoxic-effects-of-engineered-nanoparticle-protein-corona
#17
Violet Aileen Senapati, Krupa Kansara, Rishi Shanker, Alok Dhawan, Ashutosh Kumar
Engineered nanoparticles (ENPs) possess different physical and chemical properties compared to their bulk counterparts. These unique properties have found application in various products in the area of therapeutics, consumer goods, environmental remediation, optical and electronic fields. This has also increased the likelihood of their release into the environment thereby affecting human health and ecosystem. ENPs, when in contact with the biological system have various physical and chemical interactions with cellular macromolecules including proteins...
October 17, 2017: Mutagenesis
https://www.readbyqxmd.com/read/29048380/hop-phytochemicals-and-their-potential-role-in-metabolic-syndrome-prevention-and-therapy
#18
REVIEW
Pavel Dostálek, Marcel Karabín, Lukáš Jelínek
Historically, hop cones (Humulus lupulus) have been used since ancient times as a remedy for many ailments and, as a source of polyphenols and bitter acids, is very effective in the treatment of metabolic syndrome (MS). Hop flavonoids, particularly xanthohumol (XN), are substances with hypoglycemic, antihyperlipidemic, and antiobesity activities. Iso-α-acids (IAA) and matured hop bitter acids (MHBA) improve health by influencing lipid metabolism, glucose tolerance, and body weight. The modulatory effect of IAA and MHBA on lipid metabolism may also be responsible for a loss in body weight...
October 19, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29048256/skiping-with-head-start-teachers-influence-of-t-skip-on-object-control-skills
#19
Ali Brian, Jacqueline D Goodway, Jessica A Logan, Sue Sutherland
PURPOSE: Children from disadvantaged settings are at risk for delays in their object-control (OC) skills. Fundamental motor skill interventions, such as the Successful Kinesthetic Instruction for Preschoolers (SKIP) Program, are highly successful when led by motor development experts. However, few preschools employ such experts. This study examined the extent to which Head Start teachers delivering an 8-week teacher-led SKIP (T-SKIP) intervention elicited learning of OC skills for Head Start children...
October 19, 2017: Research Quarterly for Exercise and Sport
https://www.readbyqxmd.com/read/29048087/a-diversity-oriented-synthesis-of-natural-product-inspired-molecular-libraries
#20
Jyoti Chauhan, Tania Luthra, Rambabu Gundla, Antonio Ferraro, Ulrike Holzgrabe, Subhabrata Sen
Natural products are the source of innumerable pharmaceutical drug candidates and also form an important aspect of herbal remedies. They are also a source of various bioactive compounds. Herein we have leveraged the structural attributes of several natural products in building a library of architecturally diverse chiral molecules by harnessing R-tryptophan as the chiral auxiliary. It is converted to its corresponding methyl ester 1 which in turn provided a bevy of 1-aryl-tetrahydro-β-carbolines 2a-d, which were then converted to chiral compounds via a diversity oriented synthetic strategy (DOS)...
October 19, 2017: Organic & Biomolecular Chemistry
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