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https://www.readbyqxmd.com/read/28092003/validated-electrochemical-and-chromatographic-quantifications-of-some-antibiotic-residues-in-pharmaceutical-industrial-waste-water
#1
Heba K Ibrahim, Mona M Abdel-Moety, Sherif A Abdel-Gawad, Medhat A Al-Ghobashy, Mohamed Abdel Kawy
Realistic implementation of ion selective electrodes (ISEs) into environmental monitoring programs has always been a challenging task. This could be largely attributed to difficulties in validation of ISE assay results. In this study, the electrochemical response of amoxicillin trihydrate (AMX), ciprofloxacin hydrochloride (CPLX), trimethoprim (TMP), and norfloxacin (NFLX) was studied by the fabrication of sensitive membrane electrodes belonging to two types of ISEs, which are polyvinyl chloride (PVC) membrane electrodes and glassy carbon (GC) electrodes...
January 14, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28089400/selective-sequential-separation-of-abs-hips-and-pvc-from-automobile-and-electronic-waste-shredder-residue-by-hybrid-nano-fe-ca-cao-assisted-ozonisation-process
#2
Srinivasa Reddy Mallampati, Byoung Ho Lee, Yoshiharu Mitoma, Cristian Simion
The separation of plastics containing brominated flame retardants (BFR) like (acrylonitrile-butadiene-styrene (ABS), high-impact polystyrene (HIPS), and polyvinyl chloride (PVC)) from automobile and electronic waste shredder residue (ASR/ESR) are a major concern for thermal recycling. In laboratory scale tests using a hybrid nano-Fe/Ca/CaO assisted ozonation treatment has been found to selectively hydrophilize the surface of ABS/HIPS and PVC plastics, enhancing ABS wettability and thereby promoting its separation from ASR/ESR by means of froth flotation...
January 12, 2017: Waste Management
https://www.readbyqxmd.com/read/28073354/intermittent-catheterisation-with-hydrophilic-and-non-hydrophilic-urinary-catheters-systematic-literature-review-and-meta-analyses
#3
Carla Rognoni, Rosanna Tarricone
BACKGROUND: Intermittent catheterisation is the method of choice for the management of bladder dysfunctions. Different urinary catheters are available, but there is conflicting evidence on which type of catheter is best. The present study provides an objective evaluation of the clinical effectiveness of different subsets of urinary catheters. METHODS: A systematic literature review was performed for published RCTs regarding hydrophilic coated and PVC (standard) catheters for intermittent catheterisation...
January 10, 2017: BMC Urology
https://www.readbyqxmd.com/read/28072689/an-observational-study-on-the-effect-of-premature-ventricular-complex-burden-on-long-term-outcome
#4
Chin-Yu Lin, Shih-Lin Chang, Yenn-Jiang Lin, Yun-Yu Chen, Li-Wei Lo, Yu-Feng Hu, Ta-Chuan Tuan, Tze-Fan Chao, Fa-Po Chung, Jo-Nan Liao, Yao-Ting Chang, Chung-Hsing Lin, Rohit Walia, Abigail Louise D Te, Shinya Yamada, Chuen-Wang Chiou, Hsuan-Ming Tsao, Shih-Ann Chen
The long-term clinical impact of premature ventricular complexes (PVCs) on mortality and morbidity has not been fully studied. This study aimed to investigate the association between the burden of PVCs and adverse clinical outcome.A total of 5778 subjects, who were pacemaker-free and ventricular tachycardia-free at baseline, received 24-hour electrocardiography monitoring between January 1, 2002 and December 31, 2004. Clinical event data were retrieved from the Bureau of National Health Insurance of Taiwan...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28067285/residential-exposure-to-chlorinated-hydrocarbons-from-groundwater-contamination-and-the-impairment-of-renal-function-an-ecological-study
#5
Hui-Ming Chen, Ming-Tsang Wu
Groundwater pollution from the petrochemical industry causes serious deterioration of soil and groundwater quality and impacts on human health worldwide. However, few studies have examined the effect of residential exposure to petrochemical chlorinated hydrocarbon-contaminated groundwater on renal function impairment in humans. We conducted an ecological study to investigate the two. A polyvinyl chloride (PVC) plant was located in one of the six villages, the study area, in Kaohsiung city of southwestern Taiwan...
January 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28061937/thermal-behavior-of-cd-during-sludge-incineration-experiments-and-thermodynamic-equilibrium-model
#6
Jingyong Liu, Zhongxu Zhuo, Shuiyu Sun, Wuming Xie, Shaoyou Lu, Jian Sun, Jiahong Kuo, Wang Yujie
  Experiments and thermodynamic equilibrium calculations were performed to investigate the behavior of Cd during sewage sludge incineration. The chemical equilibrium calculations indicated that chlorine significantly increased the volatilization of Cd in the form of CdCl2. In addition, SiO2-containing materials can function as sorbents for stabilizing Cd. The effect of PVC added to the sludge on the migration of Cd in the sludge was greater than that of NaCl. As the temperature increased, both organic and inorganic chlorides reduced the Cd distribution in the bottom ash...
December 1, 2016: Water Environment Research: a Research Publication of the Water Environment Federation
https://www.readbyqxmd.com/read/28061370/fine-particulate-air-pollution-and-premature-ventricular-contractions-the-reasons-for-geographic-and-racial-differences-in-stroke-regards-study
#7
Wesley T O'Neal, Elsayed Z Soliman, Jimmy T Efird, Virginia J Howard, George Howard, Leslie A McClure
BACKGROUND: It is unknown if higher levels of ambient particulate matter (PM) exposure increase the risk for premature ventricular contractions (PVC) in a population-based study of men and women, and if this relationship varies by race or sex. METHODS: We examined the association of PM <2.5µm in diameter (PM2.5) concentration with PVCs in 26,121 (mean age=64±9.3 years; 55% female; 41% black) participants from the REasons for Geographic And Racial Differences in Stroke (REGARDS) study...
January 3, 2017: Environmental Research
https://www.readbyqxmd.com/read/28056038/comparison-of-primary-care-experiences-in-village-clinics-with-different-ownership-models-in-guangdong-province-china
#8
Shanshan Feng, Leiyu Shi, Jiazhi Zeng, Wen Chen, Li Ling
OBJECTIVES: In order to improve the quality of services at village clinics (VCs), which are important primary care service providers in rural China, the Chinese government has encouraged the township hospitals to own and manage VCs. There are currently three models of ownership and management of VCs: township hospital-owned and -managed (HVC), village committee-owned and -managed (VVC), and private-owned and -managed (PVC). This study aims to examine the association between these ownership models of VCs and patients' primary care experiences...
2017: PloS One
https://www.readbyqxmd.com/read/28047839/th-cd-206-08-an-anthropopathic-deformable-phantom-for-geometric-and-dose-accumulation-accuracy-validation-of-deformable-image-registration
#9
Y Liao, H Chen, J Chen, X Gu, X Zhen, L Zhou
PURPOSE: To design and construct a three-dimensional (3D) anthropopathic abdominal phantom for evaluating deformable image registration (DIR) accuracy on images and dose deformation in adaptive radiation therapy (ART). METHOD: Organ moulds, including liver, kidney, spleen, stomach, vertebra and two metastasis tumors, are 3D printed using the contours from an ovarian cancer patient. The organ moulds are molded with deformable gels that made of different mixtures of polyvinyl chloride (PVC) and the softener dioctyl terephthalate...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28045921/peripheral-venous-catheter-related-adverse-events-evaluation-from-a-multicentre-epidemiological-study-in-france-the-catheval-project
#10
Katiuska Miliani, Raphaël Taravella, Denis Thillard, Valérie Chauvin, Emmanuelle Martin, Stéphanie Edouard, Pascal Astagneau
INTRODUCTION: Peripheral venous catheters (PVC) are medical devices most frequently used during hospital care. Although the frequency of specific PVC-related adverse events (PVCAEs) has been reported, the global risk related to the insertion of this device is poorly estimated. The aim of this study is to determine the incidence of PVCAEs during the indwell time, after catheter removal, and to identify practice-mirroring risk factors. METHODS: A prospective observational study was conducted as a part of a research project, called CATHEVAL, in one surgery ward and four medicine wards from three public general tertiary care hospitals in Northern France that were invited to participate between June-2013 and June-2014...
2017: PloS One
https://www.readbyqxmd.com/read/28033495/tracing-source-and-migration-of-pb-during-waste-incineration-using-stable-pb-isotopes
#11
Yang Li, Hua Zhang, Li-Ming Shao, Pin-Jing He
Emission of Pb is a significant environmental concern during solid waste incineration. To target Pb emission control strategies effectively, the major sources of Pb in the waste incineration byproducts must be traced and quantified. However, identifying the migration of Pb in each waste component is difficult because of the heterogeneity of the waste. This study used a laboratory-scale incinerator to simulate the incineration of municipal solid waste (MSW). The Pb isotope ratios of the major waste components ((207)Pb/(206)Pb=0...
December 19, 2016: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28033162/an-ex-vivo-model-to-decipher-the-impact-of-extracorporeal-membrane-oxygenation-on-beta-lactam-degradation-kinetics
#12
Cyril Leven, Pierre Fillâtre, Antoine Petitcollin, Marie-Clémence Verdier, Jérôme Laurent, Nicolas Nesseler, Yoann Launey, Pierre Tattevin, Eric Bellissant, Erwan Flécher, Florian Lemaitre
BACKGROUND: As a consequence of drug sequestration, increase in volume of distribution or alteration of elimination, extracorporeal membrane oxygenation (ECMO) might lead to inadequate plasma concentrations of vital drugs. The aim of this experimental study was to develop an ex vivo model to better characterize the impact of ECMO procedure on beta-lactam antibiotics pharmacokinetics. METHODS: Plasma concentrations of cefotaxime, ceftazidime, cefepime, piperacillin, oxacillin, amoxicillin, and ceftriaxone were measured in an ex vivo ECMO circuit primed with whole human blood and compared to controls stored in glass tubes and polyvinyl chloride (PVC) tubing...
December 23, 2016: Therapeutic Drug Monitoring
https://www.readbyqxmd.com/read/28032414/the-german-intelligibility-in-context-scale-ics-g-reliability-and-validity-evidence
#13
Sandra Neumann, Christian Rietz, Prisca Stenneken
BACKGROUND: In 2012 the Intelligibility in Context Scale (ICS) was published as a parent-report screening assessment that considers parents' perceptions of their children's functional intelligibility with a range of communication partners that differ in levels of authority and familiarity in real-life situations. To date, the ICS has been translated into 60 languages (including German). AIMS: To evaluate the psychometric properties of the German translation of the ICS ( = ICS-G), especially its reliability and validity, using four objective measures of speech sound disorder (SSD) severity: percentage of consonants correct (PCC); percentage of initial consonants correct (PICC); percentage of vowels correct (PVC); and percentage of phonemes correct (PPC)...
December 29, 2016: International Journal of Language & Communication Disorders
https://www.readbyqxmd.com/read/28026917/voltage-combined-with-pace-mapping-is-simple-and-effective-for-ablation-of-noninducible-premature-ventricular-contractions-originating-from-the-right-ventricular-outflow-tract
#14
Zefeng Wang, Heping Zhang, Hui Peng, Xuhua Shen, Zhijun Sun, Can Zhao, Ruiqing Dong, Huikuan Gao, Yongquan Wu
BACKGROUND: Premature ventricular contractions (PVCs) from the right ventricular outflow tract (RVOT) can resist conventional mapping strategies. Studies regarding optimal mapping and ablation methods for patients with noninducible RVOT-PVCs are limited. We retrospectively evaluated the efficacy and safety of a novel mapping strategy for these cases: voltage mapping combined with pace mapping. HYPOTHESIS: METHODS: We retrospectively included symptomatic patients (n = 148; 76 males; age, 44...
December 2016: Clinical Cardiology
https://www.readbyqxmd.com/read/28025903/antibacterial-coating-on-in-line-suction-respiratory-catheter-to-inhibit-the-bacterial-biofilm-formation-using-renewable-cardanyl-methacrylate-copolymer
#15
Denial Mahata, Ahindra Nag, Santi M Mandal, Golok B Nando
Health-care materials associated with infections are very common in hospital admitted patients. There are generally infected by contact with the catheter or other multipurpose devices which are contacted with microbes. The respiratory infections associated with the pathogens having strong biofilm forming ability on catheter surface, causes life-threatening in every year. Therefore, a catheter coating material is of great interest which inhibits the biofilm formation of pathogens on a catheter to prevent respiratory infections...
January 6, 2017: Journal of Biomaterials Science. Polymer Edition
https://www.readbyqxmd.com/read/28025707/phenotypic-plasticity-in-the-common-garden-snail-big-guts-and-heavier-mucus-glands-compete-in-snails-faced-with-the-dual-challenge-of-poor-diet-and-coarse-substrate
#16
Adam J Munn, Marguerite Treloar
Phenotypic plasticity allows animals to manage environmental challenges. Studies aimed at quantifying plasticity often focus on one challenge, such as diet, and one organ system, such the gastrointestinal tract, but this approach may not adequately reflect how plasticity could buffer multiple challenges. Thus, we investigated the outcomes of a dual challenge experiment that fed land snails either a high-fibre (low quality) or a low-fibre (high quality) diet, and simultaneously exercised them daily over 1.2 m on either a smooth surface of polyvinyl chloride (PVC) or a rough sandpaper...
December 26, 2016: Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology
https://www.readbyqxmd.com/read/28025314/cucumber-lure-trapping-of-zeugodacus-cucurbitae-diptera-tephritidae-in-hawaii-and-taiwan-longevity-and-nontargets-captures
#17
Eric B Jang, Lori A F N Carvalho, Chung-Chien Chen, Matthew S Siderhurst
The melon fly, Zeugodacus cucurbitae (Coquillett), is a serious pest of tropical horticulture, causing damage to cucurbits, tree fruits, and fruiting vegetables. Melon flies are especially attractive to freshly sliced cucumber, and this has led to the identification of a nine-compound kairomone lure that can be used to trap both female and male flies. In this study, a seven-compound lure, containing (Z)-6-nonenal, (Z)-6-nonen-1-ol, 1-octen-3-ol, (E,Z)-2,6-nonadienal, (E)-2-nonenal, hexanal, and 1-hexanol, was formulated into PVC plugs (100 or 300 mg/plug) for field testing in wet traps...
December 26, 2016: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28019045/autonomic-modulation-for-the-treatment-of-ventricular-arrhythmias-therapeutic-use-of-percutaneous-stellate-ganglion-blocks
#18
Marat Fudim, Richard Boortz-Marx, Chetan B Patel, Albert Y Sun, Jonathan P Piccini
Ventricular tachycardia (VT), ventricular fibrillation (VF) and electrical storm are commonly encountered emergency conditions in cardiac and surgical intensive care units. In most cases, recurrent ventricular arrhythmias or electrical storm are associated with a heightened sympathetic tone. These arrhythmias can be difficult to treat and may be refractory to beta-blockade, antiarrhythmic therapy, sedation, and mechanical hemodynamic support. While monomorphic ventricular tachycardia and PVC-triggered polymorphic ventricular tachycardia may sometimes be amenable to successful ablation, some patients may be too critically ill to make such an approach feasible...
December 26, 2016: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28018303/evolutionary-cell-biology-of-division-mode-in-the-bacterial-planctomycetes-verrucomicrobia-chlamydiae-superphylum
#19
REVIEW
Elena Rivas-Marín, Inés Canosa, Damien P Devos
Bacteria from the Planctomycetes, Verrucomicrobia, and Chlamydiae (PVC) superphylum are exceptions to the otherwise dominant mode of division by binary fission, which is based on the interaction between the FtsZ protein and the peptidoglycan (PG) biosynthesis machinery. Some PVC bacteria are deprived of the FtsZ protein and were also thought to lack PG. How these bacteria divide is still one of the major mysteries of microbiology. The presence of PG has recently been revealed in Planctomycetes and Chlamydiae, and proteins related to PG synthesis have been shown to be implicated in the division process in Chlamydiae, providing important insights into PVC mechanisms of division...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28011827/localization-of-premature-ventricular-contractions-from-the-papillary-muscles-using-the-standard-12-lead-electrocardiogram-a-feasibility-study-using-a-novel-cardiac-isochrone-positioning-system
#20
Peter M van Dam, Noel G Boyle, Michael M Laks, Roderick Tung
AIMS: The precise localization of the site of origin of a premature ventricular contraction (PVC) prior to ablation can facilitate the planning and execution of the electrophysiological procedure. In clinical practice, the targeted ablation site is estimated from the standard 12-lead ECG. The accuracy of this qualitative estimation has limitations, particularly in the localization of PVCs originating from the papillary muscles. Clinical available electrocardiographic imaging (ECGi) techniques that incorporate patient-specific anatomy may improve the localization of these PVCs, but require body surface maps with greater specificity for the epicardium...
December 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
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