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Chemometric assisted ultrasound leaching-solid phase extraction followed by dispersive-solidification liquid-liquid microextraction for determination of organophosphorus pesticides in soil samples 2015 Department of Petroleum Engineering, Faculty of Engineering, South Tehran Branch, Islamic Azad University, P.O. Box 11365-4435, Tehran, Iran.; Arian Tajhiz Azma Company, Tehran, Iran.; Department of Petroleum Engineering, Faculty of Engineering, South Teh
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Talanta
Periodical, Abbrev.
Talanta
Pub Date Free Form
May
Volume
137
Issue
Start Page
167
Other Pages
173
Notes
CI: Copyright (c) 2015; JID: 2984816R; 0 (Organophosphorus Compounds); 0 (Pesticides); 0 (Soil); 0 (Solvents); 0 (Water Pollutants, Chemical); OTO: NOTNLM; 2014/09/23 [received]; 2015/01/22 [revised]; 2015/01/23 [accepted]; 2015/02/04 [aheadofprint]; ppub
Place of Publication
Netherlands
ISSN/ISBN
1873-3573; 0039-9140
Accession Number
PMID: 25770621
Language
eng
SubFile
Journal Article; IM
DOI
10.1016/j.talanta.2015.01.031 [doi]
Output Language
Unknown(0)
PMID
25770621
Abstract
Ultrasound leaching-solid phase extraction (USL-SPE) followed by dispersive-solidification liquid-liquid microextraction (DSLLME) was developed for preconcentration and determination of organophosphorus pesticides (OPPs) in soil samples prior gas chromatography-mass spectrometry analysis. At first, OPPs were ultrasonically leached from soil samples by using methanol. After centrifugation, the separated methanol was diluted to 50 mL with double-distillated water and passed through the C18 SPE cartridge. OPPs were eluted with 1 mL acetonitrile. Thus, 1 mL acetonitrile extract (disperser solvent) and 10 microL 1-undecanol (extraction solvent) were added to 5 mL double-distilled water and a DSLLME technique was applied. The variables of interest in the USL-SPE-DSLLME method were optimized with the aid of chemometric approaches. First, in screening experiments, fractional factorial design (FFD) was used for selecting the variables which significantly affected the extraction procedure. Afterwards, the significant variables were optimized using response surface methodology (RSM) based on central composite design (CCD). Under the optimum conditions, the enrichment factors were 6890-8830. The linear range was 0.025-625 ng g(-1) and limits of detection (LODs) were between 0.012 and 0.2 ng g(-1). The relative standard deviations (RSDs) were in the range of 4.06-8.9% (n=6). The relative recoveries of OPPs from different soil samples were 85-98%.
Descriptors
Links
Book Title
Database
Publisher
Elsevier B.V
Data Source
Authors
Ahmadi,K., Abdollahzadeh,Y., Asadollahzadeh,M., Hemmati,A., Tavakoli,H., Torkaman,R.
Original/Translated Title
URL
Date of Electronic
20150204
PMCID
Editors
The relation between tobacco taxes and youth and young adult smoking: what happened following the 2009 U.S. federal tax increase on cigarettes? 2015 Department of Economics, The University of North Carolina at Greensboro, PO Box 26170, Greensboro, NC 27402, United States.; Office on Smoking and Health, National Center for Chronic Disease Prevention & Health Promotion, Centers for Disease Control and P
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Addictive Behaviors
Periodical, Abbrev.
Addict.Behav.
Pub Date Free Form
Jun
Volume
45
Issue
Start Page
104
Other Pages
109
Notes
LR: 20160601; CI: Copyright (c) 2015; GR: CC999999/Intramural CDC HHS/United States; JID: 7603486; HHSPA745633; OID: NLM: HHSPA745633; OID: NLM: PMC4700509; OTO: NOTNLM; 2014/08/15 [received]; 2014/12/17 [revised]; 2015/01/12 [accepted]; 2015/01/19 [ahead
Place of Publication
England
ISSN/ISBN
1873-6327; 0306-4603
Accession Number
PMID: 25658771
Language
eng
SubFile
Journal Article; Research Support, U.S. Gov't, P.H.S.; IM
DOI
10.1016/j.addbeh.2015.01.023 [doi]
Output Language
Unknown(0)
PMID
25658771
Abstract
BACKGROUND: On April 1, 2009, the federal government raised cigarette taxes from $0.39 to $1.01 per pack. This study examines the impact of this increase on a range of smoking behaviors among youth aged 12 to 17 and young adults aged 18 to 25. METHODS: Data from the 2002-2011 National Survey on Drug Use and Health (NSDUH) were used to estimate the impact of the tax increase on five smoking outcomes: (1) past year smoking initiation, (2) past-month smoking, (3) past year smoking cessation, (4) number of days cigarettes were smoked during the past month, and (5) average number of cigarettes smoked per day. Each model included individual and state-level covariates and other tobacco control policies that coincided with the tax increase. We examined the impact overall and by race and gender. RESULTS: The odds of smoking initiation decreased for youth after the tax increase (odds ratio (OR)=0.83, p
Descriptors
Links
Book Title
Database
Publisher
Elsevier Ltd
Data Source
Authors
van Hasselt,M., Kruger,J., Han,B., Caraballo,R.S., Penne,M.A., Loomis,B., Gfroerer,J.C.
Original/Translated Title
URL
Date of Electronic
20150119
PMCID
PMC4700509
Editors
Magnetic nanoparticles with hydrophobicity and hydrophilicity for solid-phase extraction of polycyclic aromatic hydrocarbons from environmental water samples 2015 Tongji School of Pharmacy, Huazhong University of Science and Technology, Wuhan 430030, China.; Tongji School of Pharmacy, Huazhong University of Science and Technology, Wuhan 430030, China.; Tongji School of Pharmacy, Huazhong University of Science and T
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Journal of chromatography.A
Periodical, Abbrev.
J.Chromatogr.A
Pub Date Free Form
11-Sep
Volume
1411
Issue
Start Page
9
Other Pages
16
Notes
CI: Copyright (c) 2015; JID: 9318488; 0 (Magnetite Nanoparticles); 0 (Polycyclic Hydrocarbons, Aromatic); 0 (Water Pollutants, Chemical); OTO: NOTNLM; 2015/04/16 [received]; 2015/07/28 [revised]; 2015/07/31 [accepted]; 2015/08/01 [aheadofprint]; ppublish
Place of Publication
Netherlands
ISSN/ISBN
1873-3778; 0021-9673
Accession Number
PMID: 26260841
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.1016/j.chroma.2015.07.104 [doi]
Output Language
Unknown(0)
PMID
26260841
Abstract
Magnetic nanoparticles (MNPs) featured with divinylbenzene (DVB) and sulfonate functionalities (Fe3O4-DVB-SO3(-)) were prepared via "thiol-ene" click chemistry. The hydrophobic DVB moieties were dedicated for extraction while the hydrophilic sulfonate groups were designed for dispersing the MNPs in aqueous sample solution. Thus, the specially designed material could ensure operational convenience and improve reproducibility during extraction. The application of the material was demonstrated by the extraction of polycyclic aromatic hydrocarbons (PAHs) from environmental water samples followed by gas chromatography-mass spectrometric analysis. The main factors influencing the extraction, including the type of the desorption solvent, the agitation mode, the amount of MNPs, extraction and desorption time and salt addition in sample solution, were investigated in detail. Under the optimized conditions, the proposed method showed satisfactory reproducibility with intra-day and inter-day relative standard deviations less than 16.5% and 21.2%, and low limits of detection of 1.1pgmL(-1), 0.8pgmL(-1), 1.1pgmL(-1), 1.4pgmL(-1), 0.6pgmL(-1), 2.1pgmL(-1) and 0.7pgmL(-1) for naphthalene, acenaphthene, fluorine, phenanthrene, anthracene, fluoranthene and pyrene, respectively. The developed method was also successfully used for determination of the PAHs in genuine lake and river environmental water samples by standard addition method. All the studied PAHs were detected in these waters with comparable results by the standard liquid-liquid extraction method. The developed MNPs with dual property of hydrophobicity and hydrophilicity were suitable for the treatment of water samples. The magnetic solid phase extraction based on this material was reliable and convenient. It has great potential in the preconcentration of trace analytes in complex matrix.
Descriptors
Links
Book Title
Database
Publisher
Elsevier B.V
Data Source
Authors
Xue,S.W., Tang,M.Q., Xu,L., Shi,Z.G.
Original/Translated Title
URL
Date of Electronic
20150801
PMCID
Editors
Combustible and Smokeless Tobacco Use Among High School Athletes - United States, 2001-2013 2015
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
MMWR.Morbidity and mortality weekly report
Periodical, Abbrev.
MMWR Morb.Mortal.Wkly.Rep.
Pub Date Free Form
4-Sep
Volume
64
Issue
34
Start Page
935
Other Pages
939
Notes
JID: 7802429; epublish
Place of Publication
United States
ISSN/ISBN
1545-861X; 0149-2195
Accession Number
PMID: 26334565
Language
eng
SubFile
Journal Article; IM
DOI
10.15585/mmwr.mm6434a2 [doi]
Output Language
Unknown(0)
PMID
26334565
Abstract
Athletes are not a typical at-risk group for smoking combustible tobacco products, because they are generally health conscious and desire to remain fit and optimize athletic performance (1). In contrast, smokeless tobacco use historically has been associated with certain sports, such as baseball (2). Athletes might be more likely to use certain tobacco products, such as smokeless tobacco, if they perceive them to be harmless (3); however, smokeless tobacco use is not safe and is associated with increased risk for pancreatic, esophageal, and oral cancers (4). Tobacco use among youth athletes is of particular concern, because most adult tobacco users first try tobacco before age 18 years (5). To examine prevalence and trends in current (>/=1 day during the past 30 days) use of combustible tobacco (cigarettes, cigars) and smokeless tobacco (chewing tobacco, snuff, or dip [moist snuff]) products among athlete and nonathlete high school students, CDC analyzed data from the 2001-2013 National Youth Risk Behavior Surveys. Current use of any tobacco (combustible or smokeless tobacco) significantly declined from 33.9% in 2001 to 22.4% in 2013; however, current smokeless tobacco use significantly increased from 10.0% to 11.1% among athletes, and did not change (5.9%) among nonathletes. Furthermore, in 2013, compared with nonathletes, athletes had significantly higher odds of being current smokeless tobacco users (adjusted odds ratio [AOR] = 1.77, p
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
Agaku,I.T., Singh,T., Jones,S.E., King,B.A., Jamal,A., Neff,L., Caraballo,R.S.
Original/Translated Title
URL
Date of Electronic
20150904
PMCID
Editors
Phenyl-functionalization of titanium dioxide-nanosheets coating fabricated on a titanium wire for selective solid-phase microextraction of polycyclic aromatic hydrocarbons from environment water samples 2015 College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China.; College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China.; College of Chemistry and Chemical Engineering, Northwes
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Talanta
Periodical, Abbrev.
Talanta
Pub Date Free Form
1-Nov
Volume
144
Issue
Start Page
998
Other Pages
1006
Notes
CI: Copyright (c) 2015; JID: 2984816R; 0 (Polycyclic Hydrocarbons, Aromatic); 0 (Thioglycolates); 0 (Waste Water); 0 (Water Pollutants, Chemical); 15FIX9V2JP (titanium dioxide); 7857H94KHM (2-mercaptoacetate); D1JT611TNE (Titanium); OTO: NOTNLM; 2015/04/2
Place of Publication
Netherlands
ISSN/ISBN
1873-3573; 0039-9140
Accession Number
PMID: 26452919
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.1016/j.talanta.2015.07.064 [doi]
Output Language
Unknown(0)
PMID
26452919
Abstract
A novel titanium dioxide-nanosheets coating on a titanium wire (TiO2NS-Ti) was in situ fabricated by one-step electrochemical anodization in ethylene glycol with ammonium fluoride and followed by phenyl-functionalization for selective solid-phase microextraction (SPME). The fabricated TiO2NS coating exhibits higher specific surface area and more active sites, it also provides an ideal nanostructure and a robust substrate for subsequent surface modification. These characteristics were useful for efficient extraction. The SPME performance of phenyl-functionalized TiO2NS-Ti (ph-TiO2NS-Ti) fiber was evaluated by using ultraviolet filters, polychlorinated biphenyls and polycyclic aromatic hydrocarbons (PAHs) as model compounds coupled to high performance liquid chromatography with UV detection (HPLC-UV). It was found that the ph-TiO2NS-Ti fiber exhibited high extraction capability, good selectivity and rapid mass transfer for PAHs. The main parameters affecting extraction performance were investigated and optimized. Under optimized conditions, the proposed fiber showed good extraction efficiency comparable to those of commercial polydimethylsiloxane and polyacrylate fibers toward PAHs. The calibration graphs were linear over the range of 0.05-300 microg L(-1). The limits of detection of the proposed method were 0.008-0.043 microg L(-1) (S/N=3). Single fiber repeatability varied from 3.51% to 5.23% and fiber-to-fiber reproducibility ranged from 4.43% to 7.65% for the extraction of water spiked with 25 microg L(-1) each analyte (n=5). The established SPME-HPLC-UV method was successfully applied to selective concentration and sensitive determination of target PAHs from real environmental water samples with recoveries from 86.2% to 112% at the spiking level of 10 microg L(-1) and 50 microg L(-1). The relative standard deviations were below 9.45%. Furthermore, the ph-TiO2NS-Ti fiber can be fabricated in a reproducible manner, and has high stability and long service lifetime.
Descriptors
Links
Book Title
Database
Publisher
Elsevier B.V
Data Source
Authors
Guo,M., Song,W., Wang,T., Li,Y., Wang,X., Du,X.
Original/Translated Title
URL
Date of Electronic
20150726
PMCID
Editors
Adolescents' Perceptions of Risks and Benefits of Conventional Cigarettes, E-cigarettes, and Marijuana: A Qualitative Analysis 2015 Center for Tobacco Control Research and Education, University of California, San Francisco, San Francisco, California; Division of Adolescent Medicine, School of Medicine, Stanford University, Palo Alto, California. Electronic address: mroditis@stanford.e
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
The Journal of adolescent health : official publication of the Society for Adolescent Medicine
Periodical, Abbrev.
J.Adolesc.Health
Pub Date Free Form
Aug
Volume
57
Issue
2
Start Page
179
Other Pages
185
Notes
LR: 20160801; CI: Copyright (c) 2015; GR: CA-113710/CA/NCI NIH HHS/United States; GR: R25 CA113710/CA/NCI NIH HHS/United States; JID: 9102136; NIHMS696094; OID: NLM: NIHMS696094; OID: NLM: PMC4515157; OTO: NOTNLM; 2015/02/04 [received]; 2015/03/27 [revise
Place of Publication
United States
ISSN/ISBN
1879-1972; 1054-139X
Accession Number
PMID: 26115908
Language
eng
SubFile
Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't; IM
DOI
10.1016/j.jadohealth.2015.04.002 [doi]
Output Language
Unknown(0)
PMID
26115908
Abstract
PURPOSE: Although rates of adolescent cigarette use have remained constant or decreased, rates of marijuana and e-cigarette use are rising. Knowledge and perceptions of risks and benefits of tobacco products impact adolescents' decisions to use these products. However, little is known regarding adolescents' knowledge and perceptions of risks of e-cigarettes and marijuana nor how these perceptions are formed. This study uses qualitative techniques to assess and compare adolescents' perceptions of the risks and benefits of cigarettes, e-cigarettes, and marijuana. METHODS: Twenty-four adolescents (nine females and 15 males) from Northern California participated in six small-group discussions. Adolescents were asked what good or bad things might happen from using these products. To assess how perceptions and knowledge of risks and benefits were formed, participants were asked where and from whom they had learned about these products. RESULTS: Adolescents described negative consequences of cigarette use but were much less sure regarding risks of marijuana and e-cigarette use. Conversely, they described few benefits of cigarettes but described a number of benefits of e-cigarette and marijuana use. Adolescents described learning about these products from the media, from family and friends, and from the school environment. CONCLUSIONS: Adolescents have learned from multiple sources about risks of using cigarettes, but they receive much less and often incorrect information regarding marijuana and e-cigarettes, likely resulting in their positive and often ambivalent perceptions of marijuana and e-cigarettes.
Descriptors
Links
Book Title
Database
Publisher
Society for Adolescent Health and Medicine. Published by Elsevier Inc
Data Source
Authors
Roditis,M.L., Halpern-Felsher,B.
Original/Translated Title
URL
Date of Electronic
20150623
PMCID
PMC4515157
Editors
An audit of persistent foramen ovale closure in 105 divers 2015 Medical School, University of Bristol, Bristol, UK.; Bristol Heart Institute, Bristol Royal In fi rmary, Bristol, UK.; Bristol Heart Institute, Bristol Royal In fi rmary, Bristol, UK.; Bristol Heart Institute, Bristol Royal In fi rmary, Bristol, UK.; Leve
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Diving and hyperbaric medicine
Periodical, Abbrev.
Diving.Hyperb.Med.
Pub Date Free Form
Jun
Volume
45
Issue
2
Start Page
94
Other Pages
97
Notes
JID: 101282742; OTO: NOTNLM; 2015/03/30 [received]; 2015/05/01 [accepted]; ppublish
Place of Publication
Australia
ISSN/ISBN
1833-3516; 1833-3516
Accession Number
PMID: 26165531
Language
eng
SubFile
Journal Article; IM
DOI
Output Language
Unknown(0)
PMID
26165531
Abstract
INTRODUCTION: Right-to-left shunt across a persistent foramen ovale (PFO) has been associated with cutaneous, neurological and vestibular decompression illness (DCI). Percutaneous closure of a PFO has been used to reduce the risk of DCI. There are no randomised controlled trial data to support PFO closure for the prevention of decompression illness (DCI), so the need for audit data on the safety and ef fi cacy of this technique has been recognised by the National Institute of Health and Clinical Excellence in the UK. METHOD: Retrospective audit of all transcatheter PFO closures to reduce the risk of DCI performed by a single cardiologist with an interest in diving medicine. RESULTS: A total of 105 eligible divers undergoing 107 procedures was identi fi ed. There was a low rate of procedural complications; a rate lower than a recent randomised trial of PFO closure for stroke. Atrial fi brillation required treatment in two patients. One patient with a previously repaired mitral valve had a stroke that was thought to be unrelated to the PFO closure. Sixteen divers had minor post-procedure symptoms not requiring any treatment. Two divers required a second procedure because of residual shunt; both subsequently returned to unrestricted diving. Eighty-one of 95 divers in whom follow-up bubble contrast echocardiography was available returned to unrestricted diving. CONCLUSIONS: The PFO closure procedure appeared to be safe and was associated with the majority of divers being able to successfully return to unrestricted diving.
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
Pearman,A., Bugeja,L., Nelson,M., Szantho,G.V., Turner,M.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
The effect of motivational lung age feedback on short-term quit rates in smokers seeking intensive group treatment: A randomized controlled pilot study 2015 Penn State Tobacco Center of Regulatory Science, College of Medicine, Department of Public Health Sciences, Hershey, PA, USA. Electronic address: jfoulds@psu.edu.; Penn State Tobacco Center of Regulatory Science, College of Medicine, Department of Public
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Drug and alcohol dependence
Periodical, Abbrev.
Drug Alcohol Depend.
Pub Date Free Form
1-Aug
Volume
153
Issue
Start Page
271
Other Pages
277
Notes
LR: 20160804; CI: Copyright (c) 2015; ClinicalTrials.gov/NCT01980485; GR: P50 DA036107/DA/NIDA NIH HHS/United States; GR: P50-DA-036105/DA/NIDA NIH HHS/United States; GR: P50-DA-036107-01/DA/NIDA NIH HHS/United States; JID: 7513587; 7U1EE4V452 (Carbon Mon
Place of Publication
Ireland
ISSN/ISBN
1879-0046; 0376-8716
Accession Number
PMID: 26051163
Language
eng
SubFile
Journal Article; Randomized Controlled Trial; Research Support, N.I.H., Extramural; IM
DOI
10.1016/j.drugalcdep.2015.05.007 [doi]
Output Language
Unknown(0)
PMID
26051163
Abstract
BACKGROUND: A brief "Lung Age" feedback intervention has shown promise for personalizing the health impact of smoking and promoting cessation in unselected smokers. Now that many healthcare organizations provide face-to-face cessation services, it is reasonable to ask whether such motivational feedback of lung function tests might improve treatment compliance and cessation rates in smokers wanting to quit. This study assessed effects of baseline motivational spirometry-based "Lung Age" feedback on treatment compliance and tobacco abstinence at 28-day follow-up. METHODS: This randomized controlled pilot study took place in Penn State University-affiliated outpatient medical practices. Participants were 225 adult smokers (>/=5 cigarettes/day) willing to attend tobacco dependence treatment. At assessment lung function (FEV-1) and exhaled carbon-monoxide (CO) were assessed. The Intervention group (n=120) were randomly allocated to receive motivational "Lung Age" feedback estimated by FEV-1 and on exhaled CO; Control group (n=105) received minimal feedback. Participants were offered 6 weekly group smoking cessation sessions and nicotine patches and followed-up 28 days after target quit date. The primary outcome measure was self-reported 7-day tobacco abstinence, confirmed by CO
Descriptors
Links
Book Title
Database
Publisher
Elsevier Ireland Ltd
Data Source
Authors
Foulds,J., Veldheer,S., Hrabovsky,S., Yingst,J., Sciamanna,C., Chen,G., Maccani,J.Z., Berg,A.
Original/Translated Title
URL
Date of Electronic
20150518
PMCID
PMC4972339
Editors
Reduced Efficiency of Chlorine Disinfection of Naegleria fowleri in a Drinking Water Distribution Biofilm 2015 Microbiology and Immunology, School of Pathology and Laboratory Medicine, University of Western Australia , 35 Stirling Highway, Crawley, Western Australia 6009, Australia.; Water for a Healthy Country Flagship, Centre for Environment and Life Sciences, C
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Environmental science & technology
Periodical, Abbrev.
Environ.Sci.Technol.
Pub Date Free Form
15-Sep
Volume
49
Issue
18
Start Page
11125
Other Pages
11131
Notes
JID: 0213155; 0 (Disinfectants); 0 (Drinking Water); 4R7X1O2820 (Chlorine); 2015/09/02 [aheadofprint]; ppublish
Place of Publication
United States
ISSN/ISBN
1520-5851; 0013-936X
Accession Number
PMID: 26287820
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.1021/acs.est.5b02947 [doi]
Output Language
Unknown(0)
PMID
26287820
Abstract
Naegleria fowleri associated with biofilm and biological demand water (organic matter suspended in water that consumes disinfectants) sourced from operational drinking water distribution systems (DWDSs) had significantly increased resistance to chlorine disinfection. N. fowleri survived intermittent chlorine dosing of 0.6 mg/L for 7 days in a mixed biofilm from field and laboratory-cultured Escherichia coli strains. However, N. fowleri associated with an attached drinking water distribution biofilm survived more than 30 times (20 mg/L for 3 h) the recommended concentration of chlorine for drinking water. N. fowleri showed considerably more resistance to chlorine when associated with a real field biofilm compared to the mixed laboratory biofilm. This increased resistance is likely due to not only the consumption of disinfectants by the biofilm and the reduced disinfectant penetration into the biofilm but also the composition and microbial community of the biofilm itself. The increased diversity of the field biofilm community likely increased N. fowleri's resistance to chlorine disinfection compared to that of the laboratory-cultured biofilm. Previous research has been conducted in only laboratory scale models of DWDSs and laboratory-cultured biofilms. To the best of our knowledge, this is the first study demonstrating how N. fowleri can persist in a field drinking water distribution biofilm despite chlorination.
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
Miller,H.C., Wylie,J., Dejean,G., Kaksonen,A.H., Sutton,D., Braun,K., Puzon,G.J.
Original/Translated Title
URL
Date of Electronic
20150902
PMCID
Editors
Psychosocial Factors Associated With Adolescent Electronic Cigarette and Cigarette Use 2015 Department of Preventive Medicine and jtrimis@usc.edu.; Department of Preventive Medicine and.; Department of Preventive Medicine and.; Department of Preventive Medicine and.; Department of Preventive Medicine and.; Department of Preventive Medicine and.;
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Pediatrics
Periodical, Abbrev.
Pediatrics
Pub Date Free Form
Aug
Volume
136
Issue
2
Start Page
308
Other Pages
317
Notes
LR: 20160801; CI: Copyright (c) 2015; GR: P50 CA180905/CA/NCI NIH HHS/United States; GR: P50CA180905/CA/NCI NIH HHS/United States; JID: 0376422; OID: NLM: PMC4516947; ppublish
Place of Publication
United States
ISSN/ISBN
1098-4275; 0031-4005
Accession Number
PMID: 26216326
Language
eng
SubFile
Journal Article; Research Support, N.I.H., Extramural; Research Support, U.S. Gov't, P.H.S.; AIM; IM
DOI
10.1542/peds.2015-0639 [doi]
Output Language
Unknown(0)
PMID
26216326
Abstract
BACKGROUND: Use of electronic cigarettes (e-cigarettes) among adolescents has increased since their introduction into the US market in 2007. Little is known about the role of e-cigarette psychosocial factors on risk of e-cigarette or cigarette use in adolescence. METHODS: Information on e-cigarette and cigarette psychosocial factors (use and attitudes about use in the home and among friends) was collected from 11th- and 12th-grade participants in the Southern California Children's Health Study during the spring of 2014. RESULTS: Of 2084 participants, 499 (24.0%) had used an e-cigarette, including 200 (9.6%) current users (past 30 days); 390 participants (18.7%) had smoked a combustible cigarette, and 119 (5.7%) were current cigarette smokers. Cigarette and e-cigarette use were correlated. Nevertheless, 40.5% (n = 81) of current e-cigarette users had never smoked a cigarette. Psychosocial factors (home use of each product, friends' use of and positive attitudes toward e-cigarettes and cigarettes) and participant perception of the harm of e-cigarettes were strongly positively associated both with e-cigarette and cigarette use. Most youth who reported e-cigarette use had friends who used e-cigarettes, and almost half of current users reported that they did not believe there were health risks associated with e-cigarette use. CONCLUSIONS: Longitudinal studies of adolescents are needed to determine whether the strong association of e-cigarette psychosocial factors with both e-cigarette and cigarette use will lead to increased cigarette use or dual use of cigarettes and e-cigarettes, or whether e-cigarettes will serve as a gateway to cigarette use.
Descriptors
Links
Book Title
Database
Publisher
by the American Academy of Pediatrics
Data Source
Authors
Barrington-Trimis,J.L., Berhane,K., Unger,J.B., Cruz,T.B., Huh,J., Leventhal,A.M., Urman,R., Wang,K., Howland,S., Gilreath,T.D., Chou,C.P., Pentz,M.A., McConnell,R.
Original/Translated Title
URL
Date of Electronic
PMCID
PMC4516947
Editors