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https://www.readbyqxmd.com/read/28822938/do-natural-biofilm-impact-nzvi-mobility-and-interactions-with-porous-media-a-column-study
#1
Marc Crampon, Jennifer Hellal, Christophe Mouvet, Guillaume Wille, Caroline Michel, Anke Wiener, Juergen Braun, Patrick Ollivier
Nanoparticles (NP) used as remediation agents for groundwater treatment may interact with biofilms naturally present, altering NP mobility and/or reactivity and thereby NP effectiveness. The influence of the presence of a multi species biofilm on the mobility of two types of zero-valent iron NP (nZVI; NANOFER 25S and optimized NANOFER STAR, NanoIron s.r.o. (Czech Republic)) was tested in laboratory experiments with columns mimicking aquifer conditions. Biofilms were grown in columns filled with sand in nitrate reducing conditions using groundwater from an industrial site as inoculum...
August 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28819269/characteristic-assessment-of-diesel-degrading-bacteria-immobilized-on-natural-organic-carriers-in-marine-environment-the-degradation-activity-and-nutrient
#2
Jianliang Xue, Yanan Wu, Zhixiu Liu, Menglu Li, Xiyu Sun, Huajun Wang, Bing Liu
Oil spill has led to severe environmental and ecological problems. Due to the harsh environmental conditions, the bioremediation technology is not successfully used to remedy the oil spill in marine environment. In this study, immobilization technology was used to immobilize bacteria on natural organic carriers (i.e., wood chips and maize straw). The higher surface area of in wood chips leads to larger biomass density (0.0242 gVSS/g) than that of maize straw of 0.0097 gVSS/g carrier. Compared with biodegradation efficiency of free bacteria (44...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28817945/management-of-breast-milk-oversupply-in-traditional-persian-medicine
#3
Marya Kabiri, Mohammad Kamalinejad, Farnaz Sohrabvand, Soodabeh Bioos, Mohammad Babaeian
Comprehensive explanation about milk oversupply is not available in the current literature because few studies have been done on this topic. In traditional Persian medicine, milk oversupply and its management have been described. The aim of this study was to investigate milk oversupply from the perspective of medieval Persian practitioners. In this study, some main medical resources of traditional Persian medicine such as Al-Havi and the Canon of Medicine were studied to extract valuable information about milk oversupply...
January 1, 2017: Journal of Evidence-based Complementary & Alternative Medicine
https://www.readbyqxmd.com/read/28817265/highly-efficient-performance-and-conversion-pathway-of-photocatalytic-no-oxidation-on-sro-clusters-amorphous-carbon-nitride
#4
Wen Cui, Jieyuan Li, Fan Dong, Yanjuan Sun, Guangming Jiang, Wanglai Cen, Shun Cheng Lee, Zhongbiao Wu
This work demonstrates the first molecular-level conversion pathway of NO oxidation over a novel SrO-clusters@amorphous carbon nitride (SCO-ACN) photocatalyst, which is synthesized via co-pyrolysis of urea and SrCO3. The inclusion of SrCO3 is crucial in the formation of the amorphous carbon nitride (ACN) and SrO clusters by attacking the intralayer hydrogen bonds at the edge sites of graphitic carbon nitride (CN). The amorphous nature of ACN can promote the transportation, migration, and transformation of charge carriers on SCO-ACN...
August 17, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28814539/forward-a-registry-and-longitudinal-clinical-database-to-study-fragile-x-syndrome
#5
Stephanie L Sherman, Sharon A Kidd, Catharine Riley, Elizabeth Berry-Kravis, Howard F Andrews, Robert M Miller, Sharyn Lincoln, Mark Swanson, Walter E Kaufmann, W Ted Brown
BACKGROUND AND OBJECTIVE: Advances in the care of patients with fragile X syndrome (FXS) have been hampered by lack of data. This deficiency has produced fragmentary knowledge regarding the natural history of this condition, healthcare needs, and the effects of the disease on caregivers. To remedy this deficiency, the Fragile X Clinic and Research Consortium was established to facilitate research. Through a collective effort, the Fragile X Clinic and Research Consortium developed the Fragile X Online Registry With Accessible Research Database (FORWARD) to facilitate multisite data collection...
June 2017: Pediatrics
https://www.readbyqxmd.com/read/28804491/phylloremediation-of-air-pollutants-exploiting-the-potential-of-plant-leaves-and-leaf-associated-microbes
#6
REVIEW
Xiangying Wei, Shiheng Lyu, Ying Yu, Zonghua Wang, Hong Liu, Dongming Pan, Jianjun Chen
Air pollution is air contaminated by anthropogenic or naturally occurring substances in high concentrations for a prolonged time, resulting in adverse effects on human comfort and health as well as on ecosystems. Major air pollutants include particulate matters (PMs), ground-level ozone (O3), sulfur dioxide (SO2), nitrogen dioxides (NO2), and volatile organic compounds (VOCs). During the last three decades, air has become increasingly polluted in countries like China and India due to rapid economic growth accompanied by increased energy consumption...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28799761/-19-f-nmr-characterization-of-the-encapsulation-of-emerging-perfluoroethercarboxylic-acids-by-cyclodextrins
#7
Mary Jo Weiss-Errico, Ion Ghiviriga, Kevin E O'Shea
Legacy perfluoroalkyl substances (PFASs) are known environmental pollutants with serious adverse health effects. Perfluoroethercarboxylic acids (PFECAs), emerging PFASs now being substituted for legacy PFASs, have recently been detected in the environment. Cyclodextrins (CDs) have been proposed as agents for the remediation of problematic pollutants, including legacy PFASs. The current study uses (19)F NMR spectroscopy to measure the complexation of mono-, di-, and triether PFECAs by CDs for eventual environmental applications...
August 11, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28799041/synergistic-interface-behavior-of-strontium-adsorption-using-mixed-microorganisms
#8
Wenyuan Hu, Faqin Dong, Guangmin Yang, Xin Peng, Xiaojun Huang, Mingxue Liu, Jing Zhang
The proper handling of low-level radioactive waste is crucial to promote the sustainable development of nuclear power. Research into the mechanism for interactions between bacterium and radionuclides is the starting point for achieving successful remediation of radionuclides with microorganisms. Using Sr(II) as a simulation radionuclide and the mixed microorganisms of Saccharomyces cerevisiae and Bacillus subtilis as the biological adsorbent, this study investigates behavior at the interface between Sr(II) and the microorganisms as well as the mechanisms governing that behavior...
August 10, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28795493/-molecularly-imprinted-chromatography-fails-to-distinguish-homeopatic-remedy-from-placebo
#9
Roman Kaliszan, Małgorzata Waszczuk-Jankowska, Danuta Siluk, Bartosz Wielgomas
It was sensation when Dr. J. Beneviste reported alleged experimental biological evidence of the water memory effect (E. Dayenas et al. Nature 333, 816-818, 1988; https://doi.org/10.1038/333816a0). These experiments have never been reproduced in controlled conditions, however. Instead, the hypothesis that water can be imprinted with the memory of past solutes was ruled out (J. Maddox et al. Nature 334, 287-290, 1988; https://doi.org/10.1038/334287a0). At present, so-called "molecular imprinting" is a technology of preparing polymer matrices as affinity-based analyte separation media (J...
August 10, 2017: Journal of Separation Science
https://www.readbyqxmd.com/read/28795203/multi-walled-carbon-nanotubes-reduce-toxicity-of-diphenhydramine-to-ceriodaphnia-dubia-in-water-and-sediment-exposures
#10
Mark H Myer, Marsha C Black
Multi-walled carbon nanotubes are adsorptive materials that have potential for remediation of organic contaminants in water. Sediment elutriate exposures were undertaken with Ceriodaphnia dubia to compare the toxic effects of diphenhydramine in the presence and absence of sediment and multi-walled carbon nanotubes. In both sediment and solution-only treatments, addition of 0.318 mg/g of carbon nanotubes significantly decreased 48-h mortality relative to control, with a 78.7%-90.1% reduction in treatments with nanotube-amended sediment and 40...
August 9, 2017: Bulletin of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28793084/-use-of-medicinal-plants-as-home-remedies-in-primary-health-care-in-blumenau-state-of-santa-catarina-brazil
#11
Ana Lúcia Bertarello Zeni, Amanda Varnier Parisotto, Gerson Mattos, Ernani Tiaraju de Santa Helena
An increase in the use of alternative therapeutic practices has been observed in the past decade, especially in medicinal plants, herbal and home remedies, which has been supported by policies within the scope of the Unified Health System (SUS). This study investigated the use of home remedies by users of Primary Health Care in Blumenau, State of Santa Catarina. It is a cross-sectional, observational and epidemiological study, the data for which were obtained via a questionnaire applied to 701 individuals. An unconditional logistic regression model was used to estimate the association between the use of home remedies and socio-demographic and medical care variables...
August 2017: Ciência & Saúde Coletiva
https://www.readbyqxmd.com/read/28782992/pdtcm-a-systems-pharmacology-platform-of-traditional-chinese-medicine-for-psoriasis
#12
Dongmei Wang, Jiangyong Gu, Wei Zhu, Fang Luo, Lirong Chen, Xiaojie Xu, Chuanjian Lu
INTRODUCTION: Psoriasis is a refractory skin disorder, and usually requires a lifetime control. Traditional Chinese medicine (TCM) is effective and safe for this disease. However, the cellular and molecular mechanisms of TCM remedies for psoriasis are still not fully understood. TCM contains numerous natural products. Natural products have historically been invaluable as a resource of therapeutic agents. Yet, there is no integrated information about active compounds of TCM for psoriasis...
August 7, 2017: Annals of Medicine
https://www.readbyqxmd.com/read/28780881/-phytoestrogens-in-the-treatment-of-menopause
#13
Júlia Remport, Anna Blázovics
In previous centuries many women did not even live until their menopause years due to poor economic conditions, deficiencies of medicine, epidemics and wars. Nowadays in the developed countries, people live until they are 75-80 years old, and with the expansion of average age, the number of people affected by menopause and the years spent in that state increase. Nowadays women spend one third of their lives in the menopausal stage. The only effective way to treat unpleasant symptoms for centuries was with the use of herbs, and the knowledge about them spread through oral tradition...
August 2017: Orvosi Hetilap
https://www.readbyqxmd.com/read/28773120/application-of-synthetic-layered-sodium-silicate-magadiite-nanosheets-for-environmental-remediation-of-methylene-blue-dye-in-water
#14
Mohamed Mokhtar
The removal of methylene blue (MB) dye from water was investigated using synthetic nano-clay magadiite (SNCM). SNCM was synthesized by a hydrothermal treatment under autogenous pressure. A rosette-shaped single mesoporous magadiite phase with 16.63 nm average crystallite size and 33 m²∙g(-1) Braunauer-Emmet-Teller (BET)-surface area was recorded. The adsorption results indicated the pronounced affinity of the SNCM to the MB dye molecules, which reached an adsorption uptake of 20.0 mg MB dye/g of SNCM. The elimination of MB dye by the SNCM was kinetically and thermodynamically considered; a pseudo-second-order kinetic model was attained, and its spontaneous, chemical, and endothermic nature was verified...
July 6, 2017: Materials
https://www.readbyqxmd.com/read/28772794/strain-localization-of-elastic-damaging-frictional-cohesive-materials-analytical-results-and-numerical-verification
#15
Jian-Ying Wu, Miguel Cervera
Damage-induced strain softening is of vital importance for the modeling of localized failure in frictional-cohesive materials. This paper addresses strain localization of damaging solids and the resulting consistent frictional-cohesive crack models. As a supplement to the framework recently established for stress-based continuum material models in rate form (Wu and Cervera 2015, 2016), several classical strain-based damage models, expressed usually in total and secant format, are considered. Upon strain localization of such damaging solids, Maxwell's kinematics of a strong (or regularized) discontinuity has to be reproduced by the inelastic damage strains, which are defined by a bounded characteristic tensor and an unbounded scalar related to the damage variable...
April 20, 2017: Materials
https://www.readbyqxmd.com/read/28771640/bioremediation-of-aflatoxin-b1-contaminated-maize-by-king-oyster-mushroom-pleurotus-eryngii
#16
Maria Teresa Branà, Maria Teresa Cimmarusti, Miriam Haidukowski, Antonio Francesco Logrieco, Claudio Altomare
Aflatoxin B1 (AFB1) is the most harmful mycotoxin that occurs as natural contaminant of agricultural commodities, particularly maize. Practical solutions for detoxification of contaminated staples and reduction of agricultural wastes are scarce. We investigated the capability of the white-rot and edible fungus Plerotus eryngii (king oyster mushroom) to degrade AFB1 both in vitro and in a laboratory-scale mushroom cultivation, using a substrate similar to that routinely used in mushroom farms. In malt extract broth, degradation of AFB1 (500 ng/mL) by nine isolates of P...
2017: PloS One
https://www.readbyqxmd.com/read/28770924/ag-cuo-zno-metal-semiconductor-multiconcentric-nanotubes-for-achieving-superior-and-perdurable-photodegradation
#17
Kaichen Xu, Jiagen Wu, Chuan Fu Tan, Ghim Wei Ho, Ang Wei, Minghui Hong
Solar energy represents a robust and natural form of resource for environment remediation via photocatalytic pollutant degradation with minimum associated costs. However, due to the complexity of the photodegradation process, it has been a long-standing challenge to develop reliable photocatalytic systems with low recombination rates, excellent recyclability, and high utilization rates of solar energy, especially in the visible light range. In this work, a ternary hetero-nanostructured Ag-CuO-ZnO nanotube (NT) composite is fabricated via facile and low-temperature chemical and photochemical deposition methods...
August 3, 2017: Nanoscale
https://www.readbyqxmd.com/read/28766146/chemical-properties-of-dissolved-organic-matter-derived-from-sugarcane-rind-and-the-impacts-on-copper-adsorption-onto-red-soil
#18
Sihai Hu, Yaoguo Wu, Na Yi, Shuai Zhang, Yuanjing Zhang, Xu Xin
Dissolved organic matter (DOM), as the most active organic carbon in the soil, has a coherent affinity with heavy metals from inherent and exogenous sources. Although the important roles of DOM in the adsorption of heavy metals in soil have previously been demonstrated, the heterogeneity and variability of the chemical constitution of DOM impede the investigation of its effects on heavy metal adsorption onto soil under natural conditions. Fresh DOM (FDOM) and degraded DOM (DDOM) from sugarcane rind were prepared, and their chemical properties were measured by Fourier-transform infrared spectrometry (FTIR), excitation-emission matrix (EEM) fluorescence spectroscopes, nuclear magnetic resonance (NMR), and molecular weight distribution (MWD)...
August 1, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28763657/organochlorine-pesticides-in-the-indoor-air-of-a-theatre-and-museum-in-the-czech-republic-inhalation-exposure-and-cancer-risk
#19
Eva Holt, Ondřej Audy, Petra Booij, Lisa Melymuk, Roman Prokes, Jana Klánová
Organochlorine pesticides (OCPs) have been used to preserve the integrity of historical buildings or to protect collections of artefacts at potentially large volumes and often without detailed application records. Previous research has focused on the efficiency of remediation at contaminated sites (where identified), as well as improvement of preservation techniques and workplace health and safety. Few studies have assessed the human health risks from occupational exposure to OCPs in buildings of cultural and historical importance...
July 27, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28758575/biological-activities-and-secondary-metabolite-screening-of-rumex-hastatus-extract-through-fourier-transform-infrared-and-raman-spectroscopy
#20
Saiqa Andleeb, Anum Naseer, Shaukat Ali, Rozina Ghulam Mustafa, Atiya Zafar, Irsa Shafique, Hsan-Ul-Haq, Muhammad Ismail, Muhammad Saleem, Qaiser Mansoor
BACKGROUND: Human infectious diseases began by various pathogens including bacteria, fungi, viruses, parasites, and protozoans. These infectious agents are controlled by using synthetic drugs as well as natural sources. AIM OF STUDY: Methods: In current research antibacterial effect of Rumex hastatus was analyzed against seven clinical pathogenic bacteria such as Escherichia coli, Serratia marcescens, Streptococcus pyogenes, Staphylococcus epidermidis, Staphylococcus aureus, Klebsiella pneumoniae and Pseudomonas aeruiginosa through agar well diffusion method...
July 28, 2017: Infectious Disorders Drug Targets
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