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https://www.readbyqxmd.com/read/28551935/-comparison-of-quality-of-colonoscopy-in-an-academic-hospital-vs-a-community-hospital-outpatient-service
#1
Badira Makhoul, Muhammad Khatib, Dana Ben Hur, Jesse Lachter
BACKGROUND: Extensive use of colonoscopy in hospitals and community clinics has highlighted the need to assess the quality of the procedures in order to reduce costs and increase their efficiency. OBJECTIVES: This institutional review board (IRB)-approved study aimed to compare the quality of colonoscopies performed in a teaching hospital to those performed at a community health service. METHODS: Demographic information, time of procedure, indications, quality of bowel preparation, premedication, depth of examination, polyp detection, biopsies and followup recommendations were retrospectively obtained from 700 colonoscopy reports from the Rambam Healthcare Campus and 824 colonoscopy reports from Elisha...
March 2017: Harefuah
https://www.readbyqxmd.com/read/28551738/role-of-biochar-on-composting-of-organic-wastes-and-remediation-of-contaminated-soils-a-review
#2
Shaohua Wu, Huijun He, Xayanto Inthapanya, Chunping Yang, Li Lu, Guangming Zeng, Zhenfeng Han
Biochar is produced by pyrolysis of biomass residues under limited oxygen conditions. In recent years, biochar as an amendment has received increasing attention on composting and soil remediation, due to its unique properties such as chemical recalcitrance, high porosity and sorption capacity, and large surface area. This paper provides an overview on the impact of biochar on the chemical characteristics (greenhouse gas emissions, nitrogen loss, decomposition and humification of organic matter) and microbial community structure during composting of organic wastes...
May 27, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28551581/remediation-of-heavy-metal-contaminated-soils-by-using-solanum-nigrum-a-review
#3
REVIEW
Muhammad Zia Ur Rehman, Muhammad Rizwan, Shafaqat Ali, Yong Sik Ok, Wajid Ishaque, Saifullah, Muhammad Farrakh Nawaz, Fatima Akmal, Maqsooda Waqar
Heavy metals are among the major environmental pollutants and the accumulation of these metals in soils is of great concern in agricultural production due to the toxic effects on crop growth and food quality. Phytoremediation is a promising technique which is being considered as an alternative and low-cost technology for the remediation of metal-contaminated soils. Solanum nigrum is widely studied for the remediation of heavy metal-contaminated soils owing to its ability for metal uptake and tolerance. S. nigrum can tolerate excess amount of certain metals through different mechanism including enhancing the activities of antioxidant enzymes and metal deposition in non-active parts of the plant...
May 25, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28551209/electromagnetic-induction-of-foam-based-nanoscale-zerovalent-iron-nzvi-particles-to-thermally-enhance-non-aqueous-phase-liquid-napl-volatilization-in-unsaturated-porous-media-proof-of-concept
#4
Supawan Srirattana, Kitsanateen Piaowan, Gregory V Lowry, Tanapon Phenrat
Nanoscale zerovalent iron (NZVI) is a promising remediation agent for volatile organic compound (VOC) contamination in saturated sub-surfaces, but is rarely applied to the vadose zone as there are not enough water molecules in the unsaturated zone to participate in reductive dechlorination. In this study, we evaluated the possibility of using foam as a carrying vehicle to emplace NZVI in unsaturated porous media followed by the application of low frequency-electromagnetic field (LF-EMF) to enhance VOC volatilization in laboratory batch reactors...
May 20, 2017: Chemosphere
https://www.readbyqxmd.com/read/28551205/remediation-of-water-contaminated-with-diesel-oil-using-a-coupled-process-biological-degradation-followed-by-heterogeneous-fenton-like-oxidation
#5
Yuan Chen, Jiajiang Lin, Zuliang Chen
The treatment of a synthetically prepared wastewater containing diesel oil has been investigated using combined treatment schemes based on the biological treatment followed by an advanced oxidation process. 78% of diesel oil was degraded by Acinetobacter venetianus in 96 h, while the removal efficiency of chemical oxygen demand (COD) in the aqueous phase was only 56.8%, indicating that degraded metabolites existed in solution. To solve this problem, a Fenton-like system consisting of nanoscale zero-valent iron (nZVI) and hydrogen peroxide was used for further oxidation of the metabolites after biodegradation...
May 22, 2017: Chemosphere
https://www.readbyqxmd.com/read/28550780/dioxin-in-the-river-elbe
#6
Rainer Götz, Michael Bergemann, Burkhard Stachel, Gunther Umlauf
This paper provides a macro-analysis of the dioxin contamination in the river Elbe from the 1940s to the present. Based on different data sets, the historic dioxin concentration in the Elbe has been reconstructed. For the section between the tributary Mulde and Hamburg, during the 1940s, we find a concentration of about 1500 pg WHO-TEQ g(-1). We argue that this dioxin contamination was caused mainly by emissions from a magnesium plant in Bitterfeld-Wolfen, whose effluents were discharged into a tributary of the river Mulde which flows into the Elbe...
May 17, 2017: Chemosphere
https://www.readbyqxmd.com/read/28550600/adsorption-antagonism-and-synergy-of-arsenate-v-and-cadmium-ii-onto-fe-modified-rice-straw-biochars
#7
Youchi Zhang, Jiajun Fan, Minglai Fu, Yong Sik Ok, Yanwei Hou, Chao Cai
Arsenic-containing water poses a serious threat to human health. In this study, two types of Fe-modified rice straw biochars [(Fe-impregnated biochar (FeIm char) and pre-modified rice straw biochar (PMRS char)] were prepared, in which three ratios [1, 5, and 10% (w/w)] of Fe modification were evaluated, resulting in six different Fe-modified biochars. Then, a series of adsorption experiments, using single- and binary-metal solutions of As(V) and Cd(II), were conducted to investigate the performances of modified biochars on metal adsorption compared to pristine rice straw biochar (RS char)...
May 26, 2017: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/28550279/cinnamon-induces-browning-in-subcutaneous-adipocytes
#8
Hiu Yee Kwan, Jiahui Wu, Tao Su, Xiao-Juan Chao, Bin Liu, Xiuqiong Fu, Chi Leung Chan, Rebecca Hiu Ying Lau, Anfernee Kai Wing Tse, Quan Bin Han, Wang Fun Fong, Zhi-Ling Yu
Browning is the process of increasing the number of brite cells, which helps to increase energy expenditure and reduce obesity. Consumption of natural and non-toxic herbal extracts that possess the browning effect is an attractive anti-obesity strategy. In this study, we examined the browning effect of cinnamon extract. We found that cinnamon extract (CE) induced typical brown adipocyte multiocular phenotype in 3T3-L1 adipocytes. The treatment also increased brown adipocytes markers and reduced white adipocytes markers in the 3T3-L1 adipocytes...
May 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28549404/the-impact-of-quercetin-on-wound-healing-relates-to-changes-in-%C3%AE-v-and-%C3%AE-1-integrin-expression
#9
Karen M Doersch, M Karen Newell-Rogers
Overly fibrotic wound healing can lead to excess scar formation, causing functional impairment and undesirable cosmetic results. However, there are few successful treatments available to prevent or remediate scars. This study sought to explore the molecular mechanisms by which quercetin, a naturally-occurring antifibrotic agent, diminishes scar formation. Using both mice and fibroblast cells, we examined quercetin's impact on fibrosis and the wound healing rate, and potential molecular mechanisms underlying the quercetin-mediated reduction of fibrosis...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28549332/synthesis-and-characterization-of-fullerene-modified-znalti-ldo-in-photo-degradation-of-bisphenol-a-under-simulated-visible-light-irradiation
#10
Liting Ju, Pingxiao Wu, Xiaolin Lai, Shanshan Yang, Beini Gong, Meiqing Chen, Nengwu Zhu
In this study, ZnAlTi layered double hydroxide (ZnAlTi-LDH) combined with fullerene (C60) was fabricated by the urea method, and calcined under vacuum atmosphere to obtain nanocomposites of C60-modified ZnAlTi layered double oxide (ZnAlTi-LDO). The morphology, structure and composition of the nanocomposites were analyzed by Scanning Electron Microscopy, High-resolution transmission electron microscopy, X-ray diffraction patterns, Fourier transform infrared and specific surface area. The UV-vis diffuse reflectance spectra indicated that the incorporation of C60 expanded the absorption of ZnAlTi-LDO to visible-light region...
May 23, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28548832/compatibility-of-surfactants-and-thermally-activated-persulfate-for-enhanced-subsurface-remediation
#11
Li Wang, Libin Peng, Liling Xie, Peiyan Deng, Dayi Deng
Limited aqueous availability of hydrophobic organic contaminants and nonaqueous phase liquids in subsurface environment may seriously impair the effectiveness of traditional in situ chemical oxidation (ISCO). To tackle the issue, a combination of surfactants and thermally activated persulfate was proposed to enhance the aqueous availability and consequent oxidation of organic contaminants. The compatibility of eight representative nonionic, monovalent anionic, and divalent anionic surfactants with persulfate at various temperatures was first studied, to identify suitable surfactants that have high aqueous stability and low oxidant demands to couple with thermally activated persulfate...
May 26, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28548822/iron-containing-metal-organic-frameworks-structure-synthesis-and-applications-in-environmental-remediation
#12
Xiaocheng Liu, Yaoyu Zhou, Jiachao Zhang, Lin Tang, Lin Luo, Guangming Zeng
Metal-organic Frameworks (MOFs) with Fe content are gradually developing into an independent branch in environmental remediation, requiring economical, effective, low toxic strategies to the complete procedure. In this review, the recent advancements in the structure, synthesis and environmental application focusing on the mechanism are presented. The unique structure of novel design proposed specific characteristics of different iron containing MOFs with potential innovation. Synthesis of typical MILs, NH2-MILs and MILs based materials reveal the basis and defect of the current method, indicating the optimal means for the actual requirements...
May 26, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28548670/oxocomplexes-of-u-vi-with-8-hydroxyquinoline-5-sulfonate-in-solution-structural-studies-and-photophysical-behaviour
#13
M Luísa Ramos, Licínia L G Justino, Rui Barata, Telma Costa, Bernardo A Nogueira, Rui Fausto, Hugh D Burrows
Multinuclear ((1)H and (13)C) NMR, and Raman spectroscopy, combined with DFT calculations, provide detailed information on the complexation between U(vi) oxoions and 8-hydroxyquinoline-5-sulfonate (8-HQS) in aqueous solution. Over the concentration region studied, U(vi) oxoions (uranyl ions) form one dominant complex with 8-HQS in water in the pH range 3-6, a mononuclear 1 : 2 (metal : ligand) complex, with the metal centre (UO2(2+)) coordinated to two 8-HQS ligands, together with one or more water molecules...
May 26, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28548286/obesity-gets-on-your-renal-nerves
#14
EDITORIAL
Boye L Jensen
In the present issue of Acta Physiologica(1) , Khan et al. in their article "Improvement in baroreflex control of renal sympathetic nerve activity in obese Sprague-Dawley rats following immunosuppression" confirm that obesity-related hypertension involves resetting of the arterial baroreceptor to a state of less sensitivity and relate this mechanistically to inflammation-induced altered renal afferent nerve activity (1) . Pharmocological treatment with the calcineurin phosphatase inhibitor-type immunosuppressant tacrolimus attenuated inflammation, reversed, paradoxically, the hypertension and restored baroreceptor sensitivity similar to the effect of renal denervation...
May 26, 2017: Acta Physiologica
https://www.readbyqxmd.com/read/28548173/effects-of-freeze-thawing-cycles-on-desorption-behaviors-of-pah-contaminated-soil-in-the-presence-of-a-biosurfactant-a-case-study-in-western-canada
#15
Y Yao, G H Huang, C J An, G H Cheng, J Wei
Many regions in Canada are facing increasing environmental threats posed by oil and gas exploitation and transportation. These contaminated lands are inevitably subjected to seasonal and diurnal freeze-thawing cycles (FTCs). However, knowledge about the effect of FTCs on the behaviours of hydrophobic contaminants during the aging process of soil is limited. This study investigated the desorption characteristics of phenanthrene in aging soils in the presence of the biosurfactant rhamnolipid under diurnal and seasonal FTC treatments...
May 26, 2017: Environmental Science. Processes & Impacts
https://www.readbyqxmd.com/read/28546963/auditory-processing-abilities-of-parkinson-s-disease-patients
#16
Robert L Folmer, Jay J Vachhani, Sarah M Theodoroff, Rachel Ellinger, Amy Riggins
Since Parkinson's Disease (PD) primarily affects older people, a majority of PD patients have age-related hearing loss (HL) that will worsen over time. The goal of this study was to assess peripheral and central auditory functions in a population of PD patients and compare the results with a group of age-matched control subjects. Study participants included 35 adults with PD (mean age = 66.9 ± 11.2 years) and a group of 35 healthy control subjects (mean age = 65.4 ± 12.3 years). Assessments included questionnaires, neuropsychological tests, audiometric testing, and a battery of central auditory processing tests...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28545942/integrated-cognitive-remediation-and-standard-rehabilitation-therapy-in-patients-of-schizophrenia-persistence-after-5years
#17
Mariachiara Buonocore, Marco Spangaro, Margherita Bechi, Maria Alice Baraldi, Federica Cocchi, Carmelo Guglielmino, Laura Bianchi, Antonella Mastromatteo, Marta Bosia, Roberto Cavallaro
Cognitive remediation, often used in combination with standard rehabilitation programs, represents the best available tool to treat cognitive impairments in patients with schizophrenia. However, there are still open questions about durability of effects and generalization of cognitive improvements to functional outcome. This study aims to investigate the persistence of both cognitive and functional effects of combined cognitive remediation plus standard rehabilitation interventions, 5years after completion of the intervention, also comparing different durations of the standard rehabilitation...
May 22, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28545600/hydrocarbon-assessment-and-prediction-due-to-the-gulf-war-oil-disaster-north-kuwait
#18
Yohannes Yihdego, Radwan A Al-Weshah
  Oil spill in the Gulf was the biggest disaster in history. The scale of damage was enormous, ranging from destruction caused by oil fires and oil spills, to economic decline for the Kuwaiti oil industry. The transport modelling of the freshwater aquifers in north Kuwait was undertaken to assess potential remediation scenarios using the MODFLOW-SURFACT numerical code. Three interlinked models were calibrated: flow, density (salinity), and transport. The model domain is a subregional area encompassing the Al-Raudhatain and Umm Al-Aish Basins...
June 1, 2017: Water Environment Research: a Research Publication of the Water Environment Federation
https://www.readbyqxmd.com/read/28545526/effective-implementation-of-the-uncrpd-by-thailand-state-party-challenges-and-potential-remedies
#19
Donruedee Srisuppaphon, Arnon Sriboonroj, Wachara Riewpaiboon, Viroj Tangcharoensathien
BACKGROUND: The Thai government ratified the United Nations Convention on the Rights of Persons with Disabilities (UNCRPD) in 2008, and the first progress report by the State Party was issued in 2012. This study assesses and identifies gaps in the Government's implementation of the Convention. METHODS: Using the Deming Plan-Do-Check-Act Cycle as an analytical framework for continuous quality improvement, we reviewed five documents which are: the 2012 State Party report; the list of issues by the Committee on the Rights of Persons with Disabilities; the 2015 replies to the list of issues by the Thai government; an alternative report produced by Civil Society Organizations (CSOs); and an alternative report produced by the National Human Rights Commission of Thailand...
May 25, 2017: BMC International Health and Human Rights
https://www.readbyqxmd.com/read/28545468/the-contribution-of-the-foreign-population-to-the-high-level-of-infant-mortality-in-switzerland-a-demographic-analysis
#20
Philippe Wanner, Paola Bollini
BACKGROUND: In 2011 Switzerland reported the highest infant mortality rate among Western European countries, as well as the highest percentage of foreign population (23%). The comparison of the Swiss and foreign population in terms of reproductive health has received so far insufficient attention. The aim of the present study is to analyze the infant (IMR) and neonatal mortality rates (NMR) of Swiss and foreign children over the last 30 years. METHODS: Vital statistics from the period 1980 to 2011 were used to compute IMR and NMR according to year and/or citizenship...
May 25, 2017: BMC Pregnancy and Childbirth
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