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Characterization of Extended-Spectrum beta-Lactamase-Producing Escherichia coli Strains Isolated from Retail Foods in Shaanxi Province, China 2015 College of Food Science and Engineering, Northwest Agriculture-Forest University, Shaanxi 72100, People's Republic of China.; College of Food Science and Engineering, Northwest Agriculture-Forest University, Shaanxi 72100, People's Republic of China.; Col
Source Type
Print(0)
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Journal Article
Periodical, Full
Journal of food protection
Periodical, Abbrev.
J.Food Prot.
Pub Date Free Form
May
Volume
78
Issue
5
Start Page
1018
Other Pages
1023
Notes
JID: 7703944; 0 (Anti-Infective Agents); 0 (Bacterial Proteins); 0 (Cephalosporins); EC 3.5.2.- (beta-lactamase CTX-2); EC 3.5.2.- (beta-lactamase TEM-3); EC 3.5.2.6 (beta-Lactamases); ppublish
Place of Publication
United States
ISSN/ISBN
1944-9097; 0362-028X
Accession Number
PMID: 25951400
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.4315/0362-028X.JFP-14-490 [doi]
Output Language
Unknown(0)
PMID
25951400
Abstract
Extended-spectrum beta-lactamase (ESBL)-producing Escherichia coli strains have been reported worldwide; however, the incidence and characterization of foodborne ESBL-producing E. coli strains have been rarely reported in the People's Republic of China. Among a collection of 659 E. coli isolates recovered from retail foods in Shaanxi Province, People's Republic of China, 223 cefoxitin-resistant and/or cefoperazone-resistant isolates were screened for ESBL production with the double disk diffusion test. The ESBL-producing isolates were characterized for antimicrobial resistance and the presence of blaTEM, blaSHV, and blaCTX-M genes. Isolates with blaCTX-M were further classified by PCR as having blaCTX-M-1, blaCTX-M-2, blaCTX-M-8, blaCTX-M-9, or blaCTX-M-25. One hundred forty-seven isolates were identified as ESBL positive. PCR detection revealed that 146 isolates (99.3%) contained the blaCTX-M gene. Among these isolates, 42 (28.8%) were positive for the enzyme CTX-M-1, 5 (3.4%) for CTX-M-2, and 99 (67.8%) for CTX-M-9. No CTX-M-8 and CTX-M-25 were found in this study. One hundred fifteen isolates (78.2%) were positive for the blaTEM gene, but blaSHV was not detected. Among the 147 ESBL-producing E. coli isolates, 75 (51.0%), 35 (23.8%), and 4 (2.7%) isolates were positive for blaTEM and blaCTX-M-9, blaTEM and blaCTX-M-1, and blaTEM and blaCTX-M-2, respectively. All of the 147 ESBL-producing isolates were resistant to three or more non-beta-lactam antibiotics. This study provides evidence that foodborne E. coli can harbor ESBL-encoding genes. Thus, food could be a vehicle for the dissemination of ESBL-producing E. coli strains, a situation that requires surveillance and appropriate management strategies.
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Data Source
Authors
Xi,M., Wu,Q., Wang,X., Yang,B., Xia,X., Li,D.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Study of biofilm in bacteria from water pipelines 2015 Associate Professor, Department of Microbiology, AIIMS , Bhubaneswar S.C.B. Medical College, Cuttack, Odisha, India .; Undergraduate Student, S.C.B. Medical College , Cuttack, Odisha, India .; Assistant Professor, Department of Microbiology, S.C.B. Medica
Source Type
Print(0)
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Journal Article
Periodical, Full
Journal of clinical and diagnostic research : JCDR
Periodical, Abbrev.
J.Clin.Diagn.Res.
Pub Date Free Form
Mar
Volume
9
Issue
3
Start Page
DC09
Other Pages
11
Notes
LR: 20150510; JID: 101488993; OID: NLM: PMC4413065; OTO: NOTNLM; 2014/12/04 [received]; 2015/02/12 [accepted]; 2015/03/01 [epublish]; ppublish
Place of Publication
India
ISSN/ISBN
2249-782X; 0973-709X
Accession Number
PMID: 25954617
Language
eng
SubFile
Journal Article
DOI
10.7860/JCDR/2015/12415.5715 [doi]
Output Language
Unknown(0)
PMID
25954617
Abstract
CONTEXT: A biofilm is a layer of microorganisms contained in a matrix (slime layer), which forms on surfaces in contact with water. Their presence in drinking water pipe networks can be responsible for a wide range of water quality and operational problems. AIM: To identify the bacterial isolates, obtained from water pipelines of kitchens, to evaluate the water quality & to study the biofilm producing capacity of the bacterial isolates from various sources. SETTINGS AND DESIGN: A prospective study using water samples from aqua guard & pipelines to kitchens of S.C.B Medical College hostels. MATERIALS AND METHODS: Standard biochemical procedures for bacterial identification, multiple tube culture & MPN count to evaluate water quality & tissue culture plate (TCP) method for biofilm detection was followed. STATISTICAL ANALYSIS: STATA software version 9.2 from STATA Corporation, College station road, 90 Houston, Texas was used for statistical analysis. RESULTS: One hundred eighty seven isolates were obtained from 45 water samples cultured. The isolates were Acinetobacter spp. (44), Pseudomonas spp.(41), Klebsiella spp.(36) & others . Biofilm was detected in (37) 19.78 % of the isolates (95% CI 30.08% -43.92%) including Acinetobacter spp.-10, Klebsiella spp. - 9, Pseudomonas spp. - 9, & others, majority (34) of which were from kitchen pipelines. CONCLUSION: Water from pipeline sources was unsatisfactory for consumption as the MPN counts were > 10. Most of the biofilm producers were gram negative bacilli & Pseudomonas & Acinetobacter spp. were strong (4+) biofilm producers.
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Data Source
Authors
Mahapatra,A., Padhi,N., Mahapatra,D., Bhatt,M., Sahoo,D., Jena,S., Dash,D., Chayani,N.
Original/Translated Title
URL
Date of Electronic
20150301
PMCID
PMC4413065
Editors
Comparative and cost effectiveness of telemedicine versus telephone counseling for smoking cessation 2015 University of Kansas Medical Center, Department of Preventive Medicine and Public Health, Kansas City, KS, United States. krichter@kumc.edu.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Journal of medical Internet research
Periodical, Abbrev.
J.Med.Internet Res.
Pub Date Free Form
8-May
Volume
17
Issue
5
Start Page
e113
Other Pages
Notes
LR: 20150703; ClinicalTrials.gov/NCT00843505; GR: R01HL087643/HL/NHLBI NIH HHS/United States; JID: 100959882; EIN: J Med Internet Res. 2015;17(6):e124. Catley, Delwyn [Added]. PMID: 26075409; OID: NLM: PMC4468596; OTO: NOTNLM; 2014/10/27 [received]; 2015/
Place of Publication
Canada
ISSN/ISBN
1438-8871; 1438-8871
Accession Number
PMID: 25956257
Language
eng
SubFile
Comparative Study; Journal Article; Randomized Controlled Trial; Research Support, N.I.H., Extramural; IM
DOI
10.2196/jmir.3975 [doi]
Output Language
Unknown(0)
PMID
25956257
Abstract
BACKGROUND: In rural America, cigarette smoking is prevalent and health care providers lack the time and resources to help smokers quit. Telephone quitlines are important avenues for cessation services in rural areas, but they are poorly integrated with local health care resources. OBJECTIVE: The intent of the study was to assess the comparative effectiveness and cost effectiveness of two models for delivering expert tobacco treatment at a distance: telemedicine counseling that was integrated into smokers' primary care clinics (Integrated Telemedicine-ITM) versus telephone counseling, similar to telephone quitline counseling, delivered to smokers in their homes (Phone). METHODS: Smokers (n=566) were recruited offline from 20 primary care and safety net clinics across Kansas. They were randomly assigned to receive 4 sessions of ITM or 4 sessions of Phone counseling. Patients in ITM received real-time video counseling, similar to Skype, delivered by computer/webcams in clinic exam rooms. Three full-time equivalent trained counselors delivered the counseling. The counseling duration and content was the same in both groups and was available in Spanish or English. Both groups also received identical materials and assistance in selecting and obtaining cessation medications. The primary outcome was verified 7-day point prevalence smoking abstinence at month 12, using an intent-to-treat analysis. RESULTS: There were no significant baseline differences between groups, and the trial achieved 88% follow-up at 12 months. Verified abstinence at 12 months did not significantly differ between ITM or Phone (9.8%, 27/280 vs 12%, 34/286; P=.406). Phone participants completed somewhat more counseling sessions than ITM (mean 2.6, SD 1.5 vs mean 2.4, SD 1.5; P=.0837); however, participants in ITM were significantly more likely to use cessation medications than participants in Phone (55.9%, 128/280 vs 46.1%, 107/286; P=.03). Compared to Phone participants, ITM participants were significantly more likely to recommend the program to a family member or friend (P=.0075). From the combined provider plus participant (societal) perspective, Phone was significantly less costly than ITM. Participants in ITM had to incur time and mileage costs to travel to clinics for ITM sessions. From the provider perspective, counseling costs were similar between ITM (US $45.46, SD 31.50) and Phone (US $49.58, SD 33.35); however, total provider costs varied widely depending on how the clinic space for delivering ITM was valued. CONCLUSIONS: Findings did not support the superiority of ITM over telephone counseling for helping rural patients quit smoking. ITM increased utilization of cessation pharmacotherapy and produced higher participant satisfaction, but Phone counseling was significantly less expensive. Future interventions could combine elements of both approaches to optimize pharmacotherapy utilization, counseling adherence, and satisfaction. Such an approach could commence with a telemedicine-delivered clinic office visit for pharmacotherapy guidance, and continue with telephone or real-time video counseling delivered via mobile phones to flexibly deliver behavioral support to patients where they most need it-in their homes and communities. TRIAL REGISTRATION: Clinicaltrials.gov NCT00843505; http://clinicaltrials.gov/ct2/show/NCT00843505 (Archived by WebCite at http://www.webcitation.org/6YKSinVZ9).
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Publisher
Data Source
Authors
Richter,K.P., Shireman,T.I., Ellerbeck,E.F., Cupertino,A.P., Catley,D., Cox,L.S., Preacher,K.J., Spaulding,R., Mussulman,L.M., Nazir,N., Hunt,J.J., Lambart,L.
Original/Translated Title
URL
Date of Electronic
20150508
PMCID
PMC4468596
Editors
Fungal infectivities of implanted catheters due to Candida sp. Biofilms formation and resistance 2015 Laboratoire antibiotique antifongique, physico-chimie, synthese et activite biologique, universite de Tlemcen, BP 119, 13000 Imama, Tlemcen, Algerie; University center of Naama, BP 66, 45000 Naama, Algerie. Electronic address: seddiki.med@gmail.com.; Labo
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Journal de mycologie medicale
Periodical, Abbrev.
J.Mycol.Med.
Pub Date Free Form
Jun
Volume
25
Issue
2
Start Page
130
Other Pages
135
Notes
CI: Copyright (c) 2015; JID: 9425651; 0 (Antifungal Agents); 7XU7A7DROE (Amphotericin B); 8VZV102JFY (Fluconazole); OTO: NOTNLM; 2014/11/25 [received]; 2015/03/01 [revised]; 2015/03/02 [accepted]; 2015/05/06 [aheadofprint]; ppublish
Place of Publication
France
ISSN/ISBN
1773-0449; 1156-5233
Accession Number
PMID: 25957711
Language
fre
SubFile
English Abstract; Journal Article; IM
DOI
10.1016/j.mycmed.2015.03.003 [doi]
Output Language
Unknown(0)
PMID
25957711
Abstract
BACKGROUND: Candidemia are the most common fungal infections in hospitals. However, the catheters are subject to be altered by Candida biofilms which increase the risk of invasive nosocomial infections due to the high resistance to antifungal agents. Therefore, the minimum inhibitory concentrations of planktonic (MIC) and sessile cells (CIMS) were evaluated. METHODS: To review the in vivo biofilms structures of Candida sp. formed on the inner and/or external surfaces of collected catheters, we used scanning electron microscopy (SEM). The level of biofilm resistance was assessed against two conventional antifungal agents: amphotericin B (AmB), which belongs to the class of polyenes, and fluconazole (FLZ) which is an azole. RESULTS: The SEM observation of biofilms of Candida sp. reveals complex structures. Compared to MICs, the calculation of CIMS showed an increase of 32 times with AmB and of 128 times with FLZ. CONCLUSION: Catheters offer an ideal surface to Candida sp. to form biofilms. This complex structure induces the increase of the resistance of sessile cells against two antifungal agents, AmB and FLZ.
Descriptors
Links
Book Title
Database
Publisher
Elsevier Masson SAS
Data Source
Authors
Seddiki,S.M., Boucherit-Otmani,Z., Boucherit,K., Kunkel,D.
Original/Translated Title
Infectivites fongiques des catheters implantes dues a Candida sp. Formation des biofilms et resistance
URL
Date of Electronic
20150506
PMCID
Editors
Tobacco smoke exposure and impact of smoking legislation on rural and non-rural hospitality venues in North Dakota 2015 Assistant Professor of Nursing Executive Director, Healthy Communities International, North Dakota State University, School of Nursing, Department 2670, PO Box 6050, Fargo, ND, 58108-6050.; University of New Mexico College of Nursing, Albuquerque, NM.; De
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Research in nursing & health
Periodical, Abbrev.
Res.Nurs.Health
Pub Date Free Form
Aug
Volume
38
Issue
4
Start Page
268
Other Pages
277
Notes
CI: (c) 2015; JID: 7806136; 0 (Tobacco Smoke Pollution); OTO: NOTNLM; 2015/04/02 [accepted]; 2015/05/11 [aheadofprint]; ppublish
Place of Publication
United States
ISSN/ISBN
1098-240X; 0160-6891
Accession Number
PMID: 25962373
Language
eng
SubFile
Comparative Study; Journal Article; Research Support, Non-U.S. Gov't; IM; N
DOI
10.1002/nur.21662 [doi]
Output Language
Unknown(0)
PMID
25962373
Abstract
The purpose of this cross-sectional study in a stratified random sample of 135 bars and restaurants in North Dakota was to describe factors that influenced tobacco smoke pollution levels in the venues; to compare the quantity of tobacco smoke pollution by rurality and by presence of local ordinances; and to assess compliance with state and local laws. In data collection in 2012, we measured the indoor air quality indicator of particulate matter (2.5 microns aerodynamic diameter or smaller), calculated average smoking density and occupant density, and determined compliance with state and local smoking ordinances using observational methods. As rurality increased, tobacco smoke pollution in bars increased. A significant association was found between stringency of local laws and level of tobacco smoke pollution, but the strength of the association varied by venue type. Compliance was significantly lower in venues in communities without local ordinances. Controlling for venue type, 69.2% of smoke-free policy's impact on tobacco smoke pollution levels was mediated by observed smoking. This study advances scientific knowledge on the factors influencing tobacco smoke pollution and informs public health advocates and decision makers on policy needs, especially in rural areas.
Descriptors
Links
Book Title
Database
Publisher
Wiley Periodicals, Inc
Data Source
Authors
Buettner-Schmidt,K., Lobo,M.L., Travers,M.J., Boursaw,B.
Original/Translated Title
URL
Date of Electronic
20150511
PMCID
Editors
Three-phase succession of autochthonous lactic acid bacteria to reach a stable ecosystem within 7 days of natural bamboo shoot fermentation as revealed by different molecular approaches 2015 Microbial Resources Division, Institute of Bioresources and Sustainable Development (IBSD), Takyelpat Institutional Area, Imphal, 795001, Manipur, India.; Department of Biotechnology, Gauhati University, Guwahati, 781014, Assam, India.; Department of Biot
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Molecular ecology
Periodical, Abbrev.
Mol.Ecol.
Pub Date Free Form
Jul
Volume
24
Issue
13
Start Page
3372
Other Pages
3389
Notes
CI: (c) 2015; GENBANK/KJ095611; GENBANK/KJ095612; GENBANK/KJ095613; GENBANK/KJ095614; GENBANK/KJ095615; GENBANK/KJ095616; GENBANK/KJ095617; GENBANK/KJ095618; GENBANK/KJ095619; GENBANK/KJ095620; GENBANK/KJ095621; GENBANK/KJ095627; GENBANK/KJ095628; GENBANK
Place of Publication
England
ISSN/ISBN
1365-294X; 0962-1083
Accession Number
PMID: 25963776
Language
eng
SubFile
Journal Article; IM
DOI
10.1111/mec.13237 [doi]
Output Language
Unknown(0)
PMID
25963776
Abstract
Microbial community structure and population dynamics during spontaneous bamboo shoot fermentation for production of 'soidon' (indigenous fermented food) in North-east India were studied using cultivation-dependent and cultivation-independent molecular approaches. Cultivation-dependent analyses (PCR-amplified ribosomal DNA restriction analysis and rRNA gene sequencing) and cultivation-independent analyses (PCR-DGGE, qPCR and Illumina amplicon sequencing) were conducted on the time series samples collected from three independent indigenous soidon fermentation batches. The current findings revealed three-phase succession of autochthonous lactic acid bacteria to attain a stable ecosystem within 7 days natural fermentation of bamboo shoots. Weissella spp. (Weissella cibaria, uncultured Weissella ghanensis) and Lactococcus lactis subsp. cremoris predominated the early phase (1-2 days) which was joined by Leuconostoc citreum during the mid-phase (3 days), while Lactobacillus brevis and Lactobacillus plantarum emerged and became dominant in the late phase (5-7 days) with concurrent disappearance of W. cibaria and L. lactis subsp. cremoris. Lactococcus lactis subsp. lactis and uncultured Lactobacillus acetotolerans were predominantly present throughout the fermentation with no visible dynamics. The above identified dominant bacterial species along with their dynamics can be effectively utilized for designing a starter culture for industrialization of soidon production. Our results showed that a more realistic view on the microbial ecology of soidon fermentation could be obtained by cultivation-dependent studies complemented with cultivation-independent molecular approaches. Moreover, the critical issues to be considered for reducing methodological biases while studying the microbial ecology of traditional food fermentation were also highlighted with this soidon fermentation model.
Descriptors
Links
Book Title
Database
Publisher
John Wiley & Sons Ltd
Data Source
Authors
Romi,W., Ahmed,G., Jeyaram,K.
Original/Translated Title
URL
Date of Electronic
20150615
PMCID
Editors
Flying after diving: should recommendations be reviewed? In-flight echocardiographic study in bubble-prone and bubble-resistant divers 2015 DAN Europe Research Division, Contrada Padune 11, 64026 Roseto degli, Abruzzi (TE), Italy, Phone: +39(0)85-893-0333, Fax: +39-(0)85-893-0050, E-mail: dcialoni@daneurope.org.; DAN Europe Research Division, Roseto degli Abruzzi, Italy.; DAN Europe Research
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Diving and hyperbaric medicine
Periodical, Abbrev.
Diving.Hyperb.Med.
Pub Date Free Form
Mar
Volume
45
Issue
1
Start Page
10
Other Pages
15
Notes
JID: 101282742; OTO: NOTNLM; 2014/12/12 [received]; 2015/01/17 [accepted]; ppublish
Place of Publication
Australia
ISSN/ISBN
1833-3516; 1833-3516
Accession Number
PMID: 25964033
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
Output Language
Unknown(0)
PMID
25964033
Abstract
INTRODUCTION: Inert gas accumulated after multiple recreational dives can generate tissue supersaturation and bubble formation when ambient pressure decreases. We hypothesized that this could happen even if divers respected the currently recommended 24-hour pre-flight surface interval (PFSI). METHODS: We performed transthoracic echocardiography (TTE) on a group of 56 healthy scuba divers (39 male, 17 female) as follows: first echo--during the outgoing flight, no recent dives; second echo--before boarding the return flight, after a multiday diving week in the tropics and a 24-hour PFSI; third echo--during the return flight at 30, 60 and 90 minutes after take-off. TTE was also done after every dive during the week's diving. Divers were divided into three groups according to their 'bubble-proneness': non-bubblers, occasional bubblers and consistent bubblers. RESULTS: During the diving, 23 subjects never developed bubbles, 17 only occasionally and 16 subjects produced bubbles every day and after every dive. Bubbles on the return flight were observed in eight of the 56 divers (all from the 'bubblers' group). Two subjects who had the highest bubble scores during the diving were advised not to make the last dive (increasing their PFSI to approximately 36 hours), and did not demonstrate bubbles on the return flight. CONCLUSIONS: Even though a 24-hour PFSI is recommended on the basis of clinical trials showing a low risk of decompression sickness (DCS), the presence of venous gas bubbles in-flight in eight of 56 divers leads us to suspect that in real-life situations DCS risk after such a PFSI is not zero.
Descriptors
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Book Title
Database
Publisher
Data Source
Authors
Cialoni,D., Pieri,M., Balestra,C., Marroni,A.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
An observation of venous gas emboli in divers and susceptibility to decompression sickness 2015 Fremantle Hyperbaric Unit, Fremantle Hospital, Alma Street, PO Box 480, WA 6959, Australia, Phone: +61-(0)8-9431-2233, E-mail: ian.gawthrope@health.wa.gov.au.; The University of Notre Dame, Fremantle, Western Australia.; The University of Notre Dame, Frem
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Diving and hyperbaric medicine
Periodical, Abbrev.
Diving.Hyperb.Med.
Pub Date Free Form
Mar
Volume
45
Issue
1
Start Page
25
Other Pages
29
Notes
JID: 101282742; OTO: NOTNLM; 2014/12/24 [received]; 2014/12/28 [accepted]; ppublish
Place of Publication
Australia
ISSN/ISBN
1833-3516; 1833-3516
Accession Number
PMID: 25964035
Language
eng
SubFile
Journal Article; Observational Study; IM
DOI
Output Language
Unknown(0)
PMID
25964035
Abstract
INTRODUCTION: Decompression sickness (DCS) results from the formation of bubbles within the tissues and blood in response to a reduction in environmental pressure. Venous gas emboli (VGE) are common after diving and are usually only present in small numbers. Greater VGE numbers are an indication of decompression stress, and can be reliably detected using ultrasound imaging. AIM: To examine the relationship between production of VGE following a routine dive and the risk of DCS. METHODS: A matched population of divers with and without a history of DCS were monitored for the production of VGE at 15-minute intervals using ultrasound, following a 405 kPa air dive in a hyperbaric chamber using the DCIEM air decompression table. VGE production was graded using a validated grading system and the data analysed to compare maximum VGE grade and duration of VGE formation. RESULTS: Eleven divers with a history of DCS were compared with 13 divers with no history of DCS. Divers with a history of DCS demonstrated both a higher maximum grade (P=0.04) and longer duration (P=0.002) of VGE production compared to divers without a history of DCS. CONCLUSION: Higher maximum VGE grades and longer durations of VGE following decompression were associated with a history of DCS and, in particular, musculoskeletal DCS. Although the exact mechanism of DCS remains poorly understood, our data suggest some individuals are inherently more prone to develop VGE, increasing the probability of DCS. Modification of diving practices in those with high VGE grades could potentially decrease DCS risk in these individuals.
Descriptors
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Book Title
Database
Publisher
Data Source
Authors
Gawthrope,I.C., Summers,M., Macey,D.J., Playford,D.A.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Advantages of integrated and sustainability based assessment for metabolism based strategic planning of urban water systems 2015 Centre for Water Systems, College of Engineering, Mathematics and Physical Sciences, University of Exeter, North Park Road, Harrison Building, Exeter EX4 4QF, UK. Electronic address: k.behzadian-moghadam@exeter.ac.uk.; Centre for Water Systems, College of
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
The Science of the total environment
Periodical, Abbrev.
Sci.Total Environ.
Pub Date Free Form
15-Sep
Volume
527-528
Issue
Start Page
220
Other Pages
231
Notes
CI: Copyright (c) 2015; JID: 0330500; OTO: NOTNLM; 2014/12/11 [received]; 2015/04/25 [revised]; 2015/04/26 [accepted]; 2015/05/14 [aheadofprint]; ppublish
Place of Publication
Netherlands
ISSN/ISBN
1879-1026; 0048-9697
Accession Number
PMID: 25965035
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.1016/j.scitotenv.2015.04.097 [doi]
Output Language
Unknown(0)
PMID
25965035
Abstract
Despite providing water-related services as the primary purpose of urban water system (UWS), all relevant activities require capital investments and operational expenditures, consume resources (e.g. materials and chemicals), and may increase negative environmental impacts (e.g. contaminant discharge, emissions to water and air). Performance assessment of such a metabolic system may require developing a holistic approach which encompasses various system elements and criteria. This paper analyses the impact of integration of UWS components on the metabolism based performance assessment for future planning using a number of intervention strategies. It also explores the importance of sustainability based criteria in the assessment of long-term planning. Two assessment approaches analysed here are: (1) planning for only water supply system (WSS) as a part of the UWS and (2) planning for an integrated UWS including potable water, stormwater, wastewater and water recycling. WaterMet(2) model is used to simulate metabolic type processes in the UWS and calculate quantitative performance indicators. The analysis is demonstrated on the problem of strategic level planning of a real-world UWS to where optional intervention strategies are applied. The resulting performance is assessed using the multiple criteria of both conventional and sustainability type; and optional intervention strategies are then ranked using the Compromise Programming method. The results obtained show that the high ranked intervention strategies in the integrated UWS are those supporting both water supply and stormwater/wastewater subsystems (e.g. rainwater harvesting and greywater recycling schemes) whilst these strategies are ranked low in the WSS and those targeting improvement of water supply components only (e.g. rehabilitation of clean water pipes and addition of new water resources) are preferred instead. Results also demonstrate that both conventional and sustainability type performance indicators are necessary for strategic planning in the UWS.
Descriptors
Links
Book Title
Database
Publisher
Elsevier B.V
Data Source
Authors
Behzadian,K., Kapelan,Z.
Original/Translated Title
URL
Date of Electronic
20150514
PMCID
Editors
Chlorination and chloramination of bisphenol A, bisphenol F, and bisphenol A diglycidyl ether in drinking water 2015 Department of Chemistry, University of Kansas, 2010 Malott Hall, 1251 Wescoe Drive, Lawrence, KS, 66045, United States.; Department of Civil and Environmental Engineering, Utah State University, 4110 Old Main Hill, EL 211D, Logan, UT, 84322-4110, United S
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Water research
Periodical, Abbrev.
Water Res.
Pub Date Free Form
1-Aug
Volume
79
Issue
Start Page
68
Other Pages
78
Notes
CI: Copyright (c) 2015; JID: 0105072; 0 (Benzhydryl Compounds); 0 (Chloramines); 0 (Drinking Water); 0 (Endocrine Disruptors); 0 (Epoxy Compounds); 0 (Phenols); 0 (Water Pollutants, Chemical); 10599-90-3 (chloramine); F3XRM1NX4H (2,2-bis(4-glycidyloxyphen
Place of Publication
England
ISSN/ISBN
1879-2448; 0043-1354
Accession Number
PMID: 25965889
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.; IM
DOI
10.1016/j.watres.2015.04.014 [doi]
Output Language
Unknown(0)
PMID
25965889
Abstract
Bisphenol A (BPA), bisphenol F (BPF), and bisphenol A diglycidyl ether (BADGE) are common components of epoxy coatings used in food packaging and in drinking water distribution systems. Thus, leachates from the epoxy may be exposed to the disinfectants free chlorine (Cl2/HOCl/OCl(-)) and monochloramine (MCA, NH2Cl). Bisphenols are known endocrine disrupting chemicals (EDC) with estrogenic activity. Chlorination by-products have the potential to have reduced or enhanced estrogenic qualities, and are, therefore, of interest. In this work, chlorination reactions for bisphenols and BADGE were explored (via LC/MS/MS) and kinetic modeling (using a pseudo-first order approach) was conducted to predict the fate of these compounds in drinking water. The half-lives of BPA and BPF with 1 mg/L of free chlorine ranged from 3 to 35 min over the pH range from 6 to 11 and the temperature range of 10-25 degrees C. Half-lives for reactions of BPA and BPF with a nominal MCA concentration of 3.5 mg/L as Cl2 were from 1 to 10 days and were greater at higher pH and lower temperature. Formation of chlorinated bisphenol A by-products was observed during the kinetic studies. BADGE was found unreactive with either oxidant.
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. Published by Elsevier Ltd
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Lane,R.F., Adams,C.D., Randtke,S.J., Carter,R.E.,Jr
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20150424
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