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https://www.readbyqxmd.com/read/28738172/impact-of-polymeric-membrane-breakage-on-drinking-water-quality-and-an-online-detection-method-of-the-breakage
#1
Qilong Wu, Zhenghua Zhang, Guodong Cao, Xihui Zhang
Polymeric membrane has been widely used for the treatment of drinking water in China, and the total treating capacity has reached up to 3.8 million m(3)/d. However, the membrane breakage found in the membrane modules in many water treatment plants resulted in an increase in turbidity and bacterial amount in the membrane permeate. In this study, a membrane module running for 3 years in a full-scale application was examined in terms of the breaking positions and the numbers of the broken fibers. It was found that most of the breaking positions were mainly on the outlet side of the module and that the distance from these points to the outlet was about 1/10-2/10 length of the membrane module...
July 24, 2017: Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering
https://www.readbyqxmd.com/read/28737242/customers-perceptions-of-and-satisfaction-with-medicine-retail-outlet-services-in-addis-ababa-ethiopia-a-cross-sectional-study
#2
Dawit T Gebregeorgise, Tofik A Mohammed, Zebiba S Redi, Sofia Kälvemark Sporrong
OBJECTIVES: The aim of this study was to assess customers' perceptions of and satisfaction with MRO services in Addis Ababa and to explore factors associated with their satisfaction and reasons for visits. METHODS: A cross-sectional survey was conducted among customers selected from 28 MROs in Addis Ababa, using multi-stage sampling techniques. Simple descriptive statistics and multivariable logistic regression at 95% confidence interval were used for the analysis...
July 24, 2017: International Journal of Pharmacy Practice
https://www.readbyqxmd.com/read/28735950/associations-between-clinical-diagnostic-criteria-and-pretreatment-patient-reported-outcomes-measures-in-a-prospective-observational-cohort-of-patients-with-neurogenic-thoracic-outlet-syndrome
#3
Joshua Balderman, Katherine Holzem, Beverly J Field, Michael M Bottros, Ahmmad A Abuirqeba, Chandu Vemuri, Robert W Thompson
OBJECTIVE: Neurogenic thoracic outlet syndrome (NTOS) is caused by dynamic compression of the brachial plexus at the level of the supraclavicular scalene triangle or the subcoracoid (pectoralis minor) space, or both. The purpose of this study was to characterize relationships between 14 clinical diagnostic criteria (CDC) and seven pretreatment patient-reported outcomes measures (PROMs) in a prospective cohort of patients with NTOS. METHODS: There were 183 new patient referrals between July 1 and December 31, 2015, with 150 (82%) meeting an established set of predefined CDC for NTOS...
August 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28735211/runoff-initiation-soil-detachment-and-connectivity-are-enhanced-as-a-consequence-of-vineyards-plantations
#4
A Cerdà, S D Keesstra, J Rodrigo-Comino, A Novara, P Pereira, E Brevik, A Giménez-Morera, M Fernández-Raga, M Pulido, S di Prima, A Jordán
Rainfall-induced soil erosion is a major threat, especially in agricultural soils. In the Mediterranean belt, vineyards are affected by high soil loss rates, leading to land degradation. Plantation of new vines is carried out after deep ploughing, use of heavy machinery, wheel traffic, and trampling. Those works result in soil physical properties changes and contribute to enhanced runoff rates and increased soil erosion rates. The objective of this paper is to assess the impact of the plantation of vineyards on soil hydrological and erosional response under low frequency - high magnitude rainfall events, the ones that under the Mediterranean climatic conditions trigger extreme soil erosion rates...
July 20, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28735019/1-year-surgical-outcomes-of-complete-or-incomplete-enucleation-of-prostate-by-monopolar-electrocoagulation-photoselective-vapoenucleation-of-120w-greenlight-laser-and-holmium-laser
#5
Sung Yong Cho, Juhyun Park, Sangjun You, Min Chul Cho, Hyeon Jeong, Hwancheol Son
OBJECTIVE: To evaluate surgical outcomes of patients who underwent complete or incomplete enucleation technique during a short-term postoperative period METHODS: Patients having intractable LUTS/BPH and prostates > 30 grams with obstructed pattern in the urodynamic examinations were included. They underwent TUR-P, 120 W greenlight laser HPS-PVEP, or HoLEP. Patients with the size of remnant prostates minus surgical defects < 25 grams were grouped into the completely enucleated group (group C) and other were group into the partially enucleated group (group P)...
July 19, 2017: Urology
https://www.readbyqxmd.com/read/28734099/measuring-the-social-impact-of-dental-research-an-insight-into-the-most-influential-articles-on-the-web
#6
K Delli, C Livas, F K L Spijkervet, A Vissink
OBJECTIVES: To identify the most discussed dental articles on the Web and to assess the association between the intensity of online attention, publication characteristics and citations. MATERIALS & METHODS: An Altmetric Explorer search was conducted for articles published in the 91 dental journals included in 2015 InCites(™) Journal Citation Report(®) and mentioned online at all times. The 100 articles with the highest online attention, as measured by the 'Altmetric Attention Score' (AAS), were screened for journal title, quartile of impact factor distribution (Q1-Q4), publication date, origin and affiliation of first author, article topic, type and access...
July 22, 2017: Oral Diseases
https://www.readbyqxmd.com/read/28732293/investigation-of-the-wash-off-process-using-an-innovative-portable-rainfall-simulator-allowing-continuous-monitoring-of-flow-and-turbidity-at-the-urban-surface-outlet
#7
Saja Al Ali, Céline Bonhomme, Philippe Dubois, Ghassan Chebbo
Development of appropriate models, based on an in-depth understanding of the wash-off process, is essential to accurately estimating pollutant loads transported by stormwater, thereby minimizing environmental contamination. To this end, we developed an innovative rainfall simulator, which simulated an intense rainfall (120mm/h) and permitted the acquisition of runoff samples as well as the in situ monitoring of continuous flow and turbidity dynamics. Relationships between deposited sediments and total suspended solids in simulated runoff were thus investigated on two different types of surfaces within the Paris region in terms of loads and particle size distribution...
July 18, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28731554/evaluation-of-a-healthiness-rating-system-for-food-outlet-types-in-australian-residential-communities
#8
Hamid Moayyed, Bridget Kelly, Xiaoqi Feng, Victoria Flood
AIM: To obtain expert consensus to develop and evaluate a rating system on the relative healthiness of Australian suburbs' food outlet types. METHODS: Twenty-four food outlet types and 10 local suburbs were identified from previous mapping studies and based on a scan of suburbs across one large Australian geographical region. Initial food outlet 'scores' for relative healthiness were proposed based on available literature, classified into five categories, from 'most' to 'least' healthy...
February 2017: Nutrition & Dietetics: the Journal of the Dietitians Association of Australia
https://www.readbyqxmd.com/read/28730405/non-neurogenic-chronic-urinary-retention-what-are-we-treating
#9
REVIEW
John T Stoffel
PURPOSE OF REVIEW: This review examines current terminology used to define non-neurogenic chronic urinary retention (CUR), describes the pathophysiology of urinary retention, and highlights contemporary diagnostic and treatment algorithms. RECENT FINDINGS: There is no standardized definition for the condition, but volumes >300 ml are commonly used to describe CUR. It is a clinical diagnosis which does not require urodynamics. Pathophysiologic causes of CUR be from myogenic, neurogenic, bladder outlet obstruction, or a combination of these sources...
September 2017: Current Urology Reports
https://www.readbyqxmd.com/read/28728972/numerical-characterisation-of-one-step-and-three-step-solar-air-heating-collectors-used-for-cocoa-bean-solar-drying
#10
Elder Mendoza Orbegoso, Rafael Saavedra, Daniel Marcelo, Raúl La Madrid
In the northern coastal and jungle areas of Peru, cocoa beans are dried using artisan methods, such as direct exposure to sunlight. This traditional process is time intensive, leading to a reduction in productivity and, therefore, delays in delivery times. The present study was intended to numerically characterise the thermal behaviour of three configurations of solar air heating collectors in order to determine which demonstrated the best thermal performance under several controlled operating conditions. For this purpose, a computational fluid dynamics model was developed to describe the simultaneous convective and radiative heat transfer phenomena under several operation conditions...
July 17, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28728410/microbial-electrolytic-capture-separation-and-regeneration-of-co2-for-biogas-upgrading
#11
Xiangdan Jin, Yifeng Zhang, Xiaohu Li, Nannan Zhao, Irini Angelidaki
Biogas upgrading to natural gas quality is essential for the efficient use of biogas in various applications. Carbon dioxide (CO2) which constitutes a major part of the biogas is generally removed by physicochemical methods. However, most of the methods are expensive and often present environmental challenges. In this study, an innovative microbial electrolytic system was developed to capture, separate and regenerate CO2 for biogas upgrading without external supply of chemicals, and potentially to treat wastewater...
July 21, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28728123/analysis-of-sugarcane-herbicides-in-marine-turtle-nesting-areas-and-assessment-of-risk-using-in%C3%A2-vitro-toxicity-assays
#12
Hannah L Allan, Jason P van de Merwe, Kimberly A Finlayson, Jake W O'Brien, Jochen F Mueller, Frederic D L Leusch
Agricultural processes are associated with many different herbicides that can contaminate surrounding environments. In Queensland, Australia, herbicides applied to agricultural crops may pose a threat to valuable coastal habitats including nesting beaches for threatened loggerhead turtles (Caretta caretta). This study 1) measured concentrations of herbicides in the beach sand of Mon Repos, an important marine turtle nesting beach in Australia that is adjacent to significant sugarcane crops, and 2) investigated the toxicity of these herbicides to marine turtles using a cell-based assay...
July 9, 2017: Chemosphere
https://www.readbyqxmd.com/read/28724371/association-between-full-service-and-fast-food-restaurant-density-dietary-intake-and-overweight-obesity-among-adults-in-delhi-india
#13
Opal Patel, Safraj Shahulhameed, Roopa Shivashankar, Mohammad Tayyab, Atiqur Rahman, Dorairaj Prabhakaran, Nikhil Tandon, Lindsay M Jaacks
BACKGROUND: The food environment has been implicated as an underlying contributor to the global obesity epidemic. However, few studies have evaluated the relationship between the food environment, dietary intake, and overweight/obesity in low- and middle-income countries (LMICs). The aim of this study was to assess the association of full service and fast food restaurant density with dietary intake and overweight/obesity in Delhi, India. METHODS: Data are from a cross-sectional, population-based study conducted in Delhi...
July 19, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28724095/modeling-the-effects-of-onsite-wastewater-treatment-systems-on-nitrate-loads-using-swat-in-an-urban-watershed-of-metropolitan-atlanta
#14
Nahal Hoghooghi, David E Radcliffe, Mussie Y Habteselassie, Jaehak Jeong
Onsite wastewater treatment systems (OWTSs) can be a source of nitrogen (N) pollution in both surface and ground waters. In metropolitan Atlanta, GA, >26% of homes are on OWTSs. In a previous article, we used the Soil Water Assessment Tool to model the effect of OWTSs on stream flow in the Big Haynes Creek Watershed in metropolitan Atlanta. The objective of this study was to estimate the effect of OWTSs, including failing systems, on nitrate as N (NO-N) load in the same watershed. Big Haynes Creek has a drainage area of 44 km with mainly urban land use (67%), and most of the homes use OWTSs...
May 2017: Journal of Environmental Quality
https://www.readbyqxmd.com/read/28723908/sorting-cells-by-their-density
#15
Nazila Norouzi, Heran C Bhakta, William H Grover
Sorting cells by their type is an important capability in biological research and medical diagnostics. However, most cell sorting techniques rely on labels or tags, which may have limited availability and specificity. Sorting different cell types by their different physical properties is an attractive alternative to labels because all cells intrinsically have these physical properties. But some physical properties, like cell size, vary significantly from cell to cell within a cell type; this makes it difficult to identify and sort cells based on their sizes alone...
2017: PloS One
https://www.readbyqxmd.com/read/28723386/foam-adsorption-as-an-ex-situ-capture-step-for-surfactants-produced-by-fermentation
#16
Iva Anic, Arijit Nath, Pedro Franco, Rolf Wichmann
In this report, a method for a simultaneous production and separation of a microbially synthesized rhamnolipid biosurfactant is presented. During the aerobic cultivation of flagella-free Pseudomonas putida EM383 in a 3.1L stirred tank reactor on glucose as a sole carbon source, rhamnolipids are produced and excreted into the fermentation liquid. Here, a strategy for biosurfactant capture from rhamnolipid enriched fermentation foam using hydrophobic-hydrophobic interaction was investigated. Five adsorbents were tested independently for the application of this capture technique and the best performing adsorbent was tested in a fermentation process...
July 16, 2017: Journal of Biotechnology
https://www.readbyqxmd.com/read/28720929/antioxidant-characteristics-of-extracts-of-hibiscus-sabdariffa-calyces-encapsulated-with-mesquite-gum
#17
C E Ochoa-Velasco, C Salazar-González, S Cid-Ortega, J A Guerrero-Beltrán
This study compared the stability of extracts of H. sabdariffa calyces microencapsulated with different concentrations of mesquite gum during storage. Dry Roselle calyces were mixed with 50:50 (v/v) ethanol:water solution to obtain 18°Bx concentrate. This Roselle extract concentrate was mixed with purified mesquite gum (100:1-100:5 v/w). The Roselle extract concentrate-gum (RECG) was spray dried at inlet and outlet temperatures of 180 ± 2 and 104 ± 2.3 °C, respectively, at an air flow rate of 38 m(3)/h...
June 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28720675/the-effect-of-nebulizer-position-on-aerosolized-epoprostenol-delivery-in-an-adult-lung-model
#18
Allison C Anderson, Meagan N Dubosky, Kelly A Fiorino, Vanessa Quintana, Carl A Kaplan, David L Vines
BACKGROUND: Aerosolized epoprostenol is an alternative for inhaled nitric oxide in the management of pulmonary arterial hypertension and possibly acute hypoxemia. Our objective was to determine differences in drug deposition based on different nebulizer positions in the ventilator circuit, using a vibrating mesh nebulizer. METHODS: An 8.0-mm inner diameter endotracheal tube (ETT) was connected to a training test lung, compliance of 30 mL/cm H2O, with a collecting filter placed at the ETT-test lung junction...
July 18, 2017: Respiratory Care
https://www.readbyqxmd.com/read/28719853/determination-of-chemical-forms-of-14-c-in-liquid-discharges-from-nuclear-power-plants
#19
I Svetlik, M Fejgl, P P Povinec, T Kořínková, L Tomášková, J Pospíchal, M Kurfiřt, R Striegler, M Kaufmanová
Developments of radioanalytical methods for determination of radiocarbon in wastewaters from nuclear power plants (NPP) with pressurized light water reactors, which would distinguish between the dissolved organic and inorganic forms have been carried out. After preliminary tests, the method was used to process pilot samples from wastewater outlets from the Temelín and Dukovany NPPs (Czech Republic). The results of analysis of pilot water samples collected in 2015 indicate that the instantaneous (14)C releases into the water streams would be about 7...
July 15, 2017: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/28718163/incidence-and-management-of-lower-urinary-tract-symptoms-after-urethral-stricture-repair
#20
REVIEW
Amanda S J Chung, Kurt A McCammon
Lower urinary tract symptoms (LUTS) after urethral stricture repair are not uncommon. Urgency has been reported in 40% of men and urge incontinence in 12% of men after anterior urethroplasty. De novo urgency and urge incontinence is seen in 9 and 5% of men, respectively, after urethroplasty. Once a complication of urethroplasty (such as recurrent urethral stricture or diverticulum) has been excluded as a cause, evaluation of LUTS in such patients should focus on differentiating bladder dysfunction (overactive bladder, underactive bladder), from other outlet obstruction (such as benign prostatic obstruction), dysfunctional voiding, or medical causes (such as nocturnal polyuria)...
September 2017: Current Urology Reports
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