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Boron nitride nanotubes as novel sorbent for solid-phase microextraction of polycyclic aromatic hydrocarbons in environmental water samples 2014 Key Laboratory of Applied Technology of Sophisticated Analytical Instruments, Shandong Academy of Sciences, Jinan, Shandong, China.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Analytical and bioanalytical chemistry
Periodical, Abbrev.
Anal.Bioanal Chem.
Pub Date Free Form
Sep
Volume
406
Issue
24
Start Page
5751
Other Pages
5754
Notes
LR: 20160512; JID: 101134327; 0 (Boron Compounds); 0 (Polycyclic Hydrocarbons, Aromatic); 0 (Water Pollutants, Chemical); 2U4T60A6YD (boron nitride); 2014/04/28 [received]; 2014/07/14 [accepted]; 2014/07/08 [revised]; 2014/07/25 [aheadofprint]; ppublish
Place of Publication
Germany
ISSN/ISBN
1618-2650; 1618-2642
Accession Number
PMID: 25059725
Language
eng
SubFile
Evaluation Studies; Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.1007/s00216-014-8032-0 [doi]
Output Language
Unknown(0)
PMID
25059725
Abstract
Boron nitride nanotube (BNNT) is a novel material that shows potential ability in capturing organic pollutants. In this study, BNNTs fixed on a stainless steel fiber by a sol-gel technique were used as sorbent for solid-phase microextraction. Five polycyclic aromatic hydrocarbons with different numbers of aromatic rings were selected as target analysts. Gas chromatography coupled with tandem mass spectrometry was used for detection and quantitative determination. Under optimized conditions, the experimental results show a wide range of linearity (1 to 1,000 ng L(-1)), less than 10.1 % repeatability of relative standard deviation, and low detection limits (0.08 to 0.39 ng L(-1)). In addition, the fabricated fiber offered good thermal and chemical stability. The proposed method was successfully applied for the analysis of real water samples, and satisfactory results were obtained with relative recoveries ranging from 80.2 to 116.8 %. The results demonstrated that BNNTs could be used as sorbent for the analysis of environmental pollutants at trace levels.
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
Fu,M., Xing,H., Chen,X., Zhao,R., Zhi,C., Wu,C.L.
Original/Translated Title
URL
Date of Electronic
20140725
PMCID
Editors
Both environmental tobacco smoke and personal smoking is related to asthma and wheeze in teenagers 2011 The OLIN Study Group, Sunderby Central Hospital of Norrbotten, Lulea, Sweden. linnea.hedman@nll.se
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Thorax
Periodical, Abbrev.
Thorax
Pub Date Free Form
Jan
Volume
66
Issue
1
Start Page
20
Other Pages
25
Notes
JID: 0417353; 0 (Tobacco Smoke Pollution); 2010/11/03 [aheadofprint]; ppublish
Place of Publication
England
ISSN/ISBN
1468-3296; 0040-6376
Accession Number
PMID: 21047869
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.1136/thx.2010.143800 [doi]
Output Language
Unknown(0)
PMID
21047869
Abstract
BACKGROUND: Environmental tobacco smoke (ETS) has been reported as a significant risk factor for childhood asthma. Among adults, personal smoking is a major cause of respiratory symptoms and diseases. The effects of these exposures on the prevalence of asthma and wheeze among teenagers are less well known. OBJECTIVE: The aim was to study the independent and combined effects of ETS and personal smoking on the prevalence of asthma and wheeze in teenagers. METHODS: A longitudinal study of asthma and allergic diseases in schoolchildren has been in progress in Northern Sweden since 1996. All children aged 7-8 years in three municipalities were invited and 3430 (97%) participants have been followed by annual questionnaires. At the age 16-17 years, 82% of the initial participants took part in the 2005 survey. RESULTS: Prevalence of physician-diagnosed asthma, ever wheeze and current wheeze was significantly higher among those exposed to maternal ETS and among daily smokers. In multivariate analyses, maternal ETS was a significant risk factor for physician-diagnosed asthma and ever wheeze (OR 1.3-1.5) and personal daily smoking for current wheeze (OR 2.0). ORs for asthma and ever wheeze were highest among daily smokers who were also exposed to maternal ETS with ORs of 1.7 and 2.5, respectively. A significant dose-response association between number of cigarettes/day and the prevalence of wheeze was also found. CONCLUSIONS: Both ETS and personal smoking were significantly related to asthma and wheeze in teenagers. Maternal ETS exposure was associated with lifetime symptoms, but daily smoking among the teenagers was more strongly related to current symptoms.
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Book Title
Database
Publisher
Data Source
Authors
Hedman,L., Bjerg,A., Sundberg,S., Forsberg,B., Ronmark,E.
Original/Translated Title
URL
Date of Electronic
20101103
PMCID
Editors
Brain-derived neutrophic factor in adolescents smoking waterpipe: The Irbid TRY 2018
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
International Journal of Developmental Neuroscience
Periodical, Abbrev.
Pub Date Free Form
Volume
67
Issue
Start Page
14
Other Pages
18
Notes
Place of Publication
ISSN/ISBN
Accession Number
Language
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
Descriptors
Links
Book Title
Database
Publisher
Elsevier
Data Source
google
Authors
Alomari, Mahmoud A, Al-Sheyab, Nihaya A, Khabour, Omar F, Alzoubi, Karem H
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Brain-derived neutrophic factor in adolescents smoking waterpipe: The Irbid TRY 2018
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
International Journal of Developmental Neuroscience
Periodical, Abbrev.
Pub Date Free Form
Volume
67
Issue
Start Page
14
Other Pages
18
Notes
Place of Publication
ISSN/ISBN
Accession Number
Language
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
Descriptors
Links
Book Title
Database
Publisher
Elsevier
Data Source
google
Authors
Alomari, Mahmoud A, Al-Sheyab, Nihaya A, Khabour, Omar F, Alzoubi, Karem H
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Brainstem evoked potential and its application 2006 Yang, C.-L., Department of Otolaryngology, Wuhan General Hospital of Guangzhou Military Area Command of Chinese PLA, Wuhan 430070 Hubei Province, China
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Chinese Journal of Clinical Rehabilitation
Periodical, Abbrev.
Chin.J.Clin.Rehab.
Pub Date Free Form
2006/07
Volume
10
Issue
26
Start Page
10
Other Pages
12
Notes
Place of Publication
ISSN/ISBN
1671-5926
Accession Number
Language
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
Aim: To analyze the wave characteristics of brainstem evoked potential (BEP), observe normative BEP V wave latency-intensity function curve and changes of corresponding threshold, and provide the reference for the combined application of air-conduction and bone-conduction BEP in clinic. Methods: The experiment was carried out at the Auditory Center, Wuhan General Hospital of Guangzhou Military Area Command of PLA between March and August 2005. Totally 28 youth undergraduates (56 ears) with normal hearing were selected to conduct the pure tone threshold audiometry (PTA), and the air-conduction auditory threshold of each frequency was no more than 15 dBHL. All the testees were found normal in external ear and middle ear, without noise exposure, ototoxic drugs application or neurological history. 1 PTA: Firstly, with the voice length of 0.5-1.0 seconds and interval of more than 1 seconds, the auditory threshold of 1 000 Hz was measured in avoidance of rhythm voice from 40 dBHL on. According to the principle of decreasing 10 or increasing 5, the sound intensity was decreased 10 dB if testee could hear, whereas increased 5 dB if could not hear. Then the testees were detected from high frequency to low frequency (2 000, 3 000, 4 000, 6 000, 8 000, 1 000, 500, 250 Hz), and repeatedly in 1 000 Hz to assay the reproducibility. 2 BEP: Nicolet-spirit evoked potential apparatus was applied to record BEP wave. With the repetitive rate of 21.1 times per second, the stimulation sound was short sound in the alternation of positive and negative electrode, and scanned for 15 ms in filter-wave range of 50-2 500 Hz, averagely repeated for 1 000 times. The lowest intensity at which response occurred repeatedly was defined as response threshold of BEP, meanwhile, the changes of bong-conduction BEP threshold and latency were observed after white noise masking. Results: According to the intention-treat analysis, 28 youth undergraduates were all involved in the result analysis. 1 Description of bone-conduction BEP wave: The air-conduction and bone-conduction wave educed obvious I wave and V wave repeatedly without obvious false traces of initial sound. Moreover, the air-conduction BEP wave exhibited wider amplitude and educed III wave. 2 BEP V wave latency-intensity function curve: The latency prolonged gradually with the decrease of stimulation intensity. The bone-conducted clicks yielded somewhat longer latencies than air-conducted clicks. 3 Comparison of BEP response threshold between air-conduction and bone-conduction: The threshold of air-conduction was significantly lower than that of bone-conduction [(45.09±2.23), (61.25±2.18) dBpeSPL, P 0.05). Conclusion: The waves of air-conduction and bone-conduction BEP are similar in the wave characteristics, and complementary in methodology, thus the combined application of two conductions is hopeful to apply on the evaluation of conductive disorder and its level. In addition, contralateral noise masking is necessary when administering bone-conduction BEP test within 60 dB SPL intensity.
Descriptors
adult, air conduction, article, auditory stimulation, auditory threshold, bone conduction, conduction deafness, controlled study, drug use, electrode, environmental exposure, evoked brain stem response, external ear, female, frequency analysis, hearing, human, human experiment, male, middle ear, neurology, noise, pure tone audiometry, reproducibility, sound intensity, white noise
Links
Book Title
Database
Embase
Publisher
Data Source
Embase
Authors
Yang,C. -L, Yao,H. -Q, Zhu,Y., Sun,Y.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Breath carbon monoxide levels in different forms of smoking 2011
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Indian J Chest Dis Allied Sci
Periodical, Abbrev.
Indian J.Chest Dis.Allied Sci.
Pub Date Free Form
Volume
53
Issue
1
Start Page
25
Other Pages
8
Notes
ID: 21446221
Place of Publication
ISSN/ISBN
Accession Number
Language
en
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
BACKGROUND AND OBJECTIVES: Bidi, cigarette, hookah and chillum are common modes of tobacco smoking in India. Many people consider hookah and chillum smoking less toxic because smoke is filtered through water or wet cloth. We evaluated the toxicity of tobacco smoking by measuring end-tidal carbon monoxide (eCO) levels after various modes of smoking. METHODS: Eighteen healthy smokers who smoked bidi, cigarette, hookah and chillum on six days were studied. They smoked one bidi, one cigarette, five minutes hookah, one serve (15 minutes) hookah, five minutes chillum and one serve (15 minutes) chillum on six days randomly. The eCO values were measured before initiation of smoking and for a period of one hour after the smoking session. Increase in eCO values in comparison to baseline after different modes of smoking was compared. RESULTS: In comparison to baseline, mean eCO levels were raised by 4.94 (0.96) parts per million (ppm) immediately and 4.17 (1.07) ppm 60 minutes after cigarette smoking. Bidi smoking caused slightly less increase in mean eCO levels (3.17 0.82]). One serve of hookah and chillum smoking caused elevation of mean eCO values by almost eight-folds higher than that of cigarette smoking. Five minutes of smoking with hookah (22.18 5.29]) and one serve of hookah (33.0 8.76]) and chillum (40.14 12.73]) caused significantly higher values of mean increase in eCO in comparison to cigarette smoking (p<0.001). CONCLUSION: With regard to eCO levels, hookah and chillum smoking are much more toxic than cigarette smoking.
Descriptors
Carbon Monoxide/metabolism, Smoking/metabolism, Adult, Breath Tests, Case-Control Studies, Humans, Middle Aged, Tobacco/toxicity
Links
http://pesquisa.bvsalud.org/ghl/resource/en/mdl-21446221
Book Title
Database
MEDLINE; http://www.globalhealthlibrary.net/
Publisher
Data Source
Authors
Singh,Sheetu, Soumya,M., Saini,Anirudh, Mittal,Varun, Singh,Udai Veer, Singh,Virendra
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Breath carbon monoxide levels in different forms of smoking 2012
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Periodical, Abbrev.
Pub Date Free Form
25-May
Volume
Issue
Start Page
Other Pages
Notes
ID: imsear.hellis.org-123456789-138647
Place of Publication
ISSN/ISBN
Accession Number
Language
en
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
Background and Objectives. Bidi, cigarette, hookah and chillum are common modes of tobacco smoking in India. Many people consider hookah and chillum smoking less toxic because smoke is filtered through water or wet cloth. We evaluated the toxicity of tobacco smoking by measuring end-tidal carbon monoxide (eCO) levels after various modes of smoking. Methods. Eighteen healthy smokers who smoked bidi, cigarette, hookah and chillum on six days were studied. They smoked one bidi, one cigarette, five minutes hookah, one serve (15 minutes) hookah, five minutes chillum and one serve (15 minutes) chillum on six days randomly. The eCO values were measured before initiation of smoking and for a period of one hour after the smoking session. Increase in eCO values in comparison to baseline after different modes of smoking was compared. Results. In comparison to baseline, mean eCO levels were raised by 4.94 (0.96) parts per million (ppm) immediately and 4.17 (1.07) ppm 60 minutes after cigarette smoking. Bidi smoking caused slightly less increase in mean eCO levels (3.17 0.82]). One serve of hookah and chillum smoking caused elevation of mean eCO values by almost eight-folds higher than that of cigarette smoking. Five minutes of smoking with hookah (22.18 5.29]) and one serve of hookah (33.0 8.76]) and chillum (40.14 12.73]) caused significantly higher values of mean increase in eCO in comparison to cigarette smoking (p
Descriptors
Links
http://pesquisa.bvsalud.org/ghl/resource/en/oai-imsear.hellis.org-123456789-138647
Book Title
Database
IMSEAR; http://www.globalhealthlibrary.net/
Publisher
Data Source
Authors
Singh,Sheetu, Soumya,M., Saini,Anirudh, Mittal,Varun, Singh,Udai Veer, Singh,Virendra
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Breeding and fertility of the Egyptian spiny mouse, Acomys cahirinus: effect of different environments 1976 Nuffield Inst. Comp. Med., Zool. Soc., London
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Laboratory animals
Periodical, Abbrev.
Lab.Anim.
Pub Date Free Form
1976/
Volume
10
Issue
1
Start Page
15
Other Pages
24
Notes
Place of Publication
ISSN/ISBN
0023-6772
Accession Number
Language
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
2 years experience with Acomys in one laboratory confirmed the slow breeding rate found by other workers. On moving the animals to another laboratory there was a 2-5 fold increase in breeding rate. The most likely explanation of this change was the presence of copper in the drinking water at the 1st laboratory, due to the use of copper water pipes. The data relating to maintenance and breeding of acomys for 2 years at the 2nd laboratory were analyzed to provide a more representative picture of the species.
Descriptors
copper, drinking water, breeding, fertility, mouse, pregnancy, theoretical study
Links
Book Title
Database
Embase; MEDLINE
Publisher
Data Source
Embase
Authors
Young,D. A. B.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Brief, instructional smokeless tobacco use among cigarette smokers who do not intend to quit: a pilot randomized clinical trial 2014 Department of Psychiatry and Behavioral Sciences and Hollings Cancer Center, Medical University of South Carolina, Charleston, SC;
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco
Periodical, Abbrev.
Nicotine Tob.Res.
Pub Date Free Form
Apr
Volume
16
Issue
4
Start Page
397
Other Pages
405
Notes
LR: 20160218; GR: T32 DA007288/DA/NIDA NIH HHS/United States; JID: 9815751; 0 (Nitrosamines); OID: NLM: PMC3954419; 2013/10/15 [aheadofprint]; ppublish
Place of Publication
England
ISSN/ISBN
1469-994X; 1462-2203
Accession Number
PMID: 24130144
Language
eng
SubFile
Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't; IM
DOI
10.1093/ntr/ntt161 [doi]
Output Language
Unknown(0)
PMID
24130144
Abstract
INTRODUCTION: Low-nitrosamine smokeless tobacco (SLT) may have efficacy for smoking reduction and cessation, but its public health impact depends on how smokers use it. METHODS: This pilot study explored brief, instructional low-nitrosamine SLT use among smokers unmotivated to quit. Participants (N = 57) were randomized to either a free 2-week supply of Camel Snus group or a no-supply group. Of those randomized to use Camel Snus, half were told to use it to cope with smoking restrictions (Snus to Cope), and the remaining half were advised to use it to reduce smoking (Snus to Reduce). Participants were assessed before, during, and immediately after the intervention. RESULTS: Many Snus to Cope and Snus to Reduce participants reported daily use of Camel Snus, although the amount of use was low. Snus to Cope (18.4%) and Snus to Reduce (37.6%) participants reported a decline in number of cigarettes used per day, which was not reported by the control participants (p
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
Burris,J.L., Carpenter,M.J., Wahlquist,A.E., Cummings,K.M., Gray,K.M.
Original/Translated Title
URL
Date of Electronic
20131015
PMCID
PMC3954419
Editors
BTEX in indoor air of waterpipe cafes: Levels and factors influencing their concentrations 2015 Department of Environmental Health Engineering, School of Public Health, Ardabil University of Medical Sciences, Ardabil, Iran.; Department of Environmental Health Engineering, School of Public Health, Semnan University of Medical Sciences, Semnan, Iran.;
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-Aug
Volume
524-525
Issue
Start Page
347
Other Pages
353
Notes
CI: Copyright (c) 2015; JID: 0330500; 0 (Air Pollutants); 0 (Benzene Derivatives); 0 (Tobacco Smoke Pollution); 0 (Xylenes); 3FPU23BG52 (Toluene); J64922108F (Benzene); L5I45M5G0O (ethylbenzene); OTO: NOTNLM; 2014/10/19 [received]; 2015/04/04 [revised]; 2
Place of Publication
Netherlands
ISSN/ISBN
1879-1026; 0048-9697
Accession Number
PMID: 25912530
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.1016/j.scitotenv.2015.04.031 [doi]
Output Language
Unknown(0)
PMID
25912530
Abstract
BTEX (benzene, toluene, ethylbenzene and xylene) concentrations, factors affecting their levels, and the exposure risks related to these compounds were studied in waterpipe (Ghalyun/Hookah) cafes of Ardabil city in Islamic Republic of Iran. 81 waterpipe cafes from different districts of Ardabil city were selected and their ambient air was monitored for BTEX compounds. Air samples were taken from standing breathing zone of employees, ~150 cm above the ground level, and were analyzed using GC-FID. In each case, the types of smoked tobacco (regular, fruit flavored), types of ventilation systems (natural/artificial), and the floor level at which the cafe was located were investigated. A high mean concentration of 4.96+/-2.63 mg/m(3) corresponding to long term exposure to benzene-related cancer risk of 4314x10(-6) was estimated. The levels of the remaining compounds were lower than the national guideline limits, but their hazard quotients (HQ) for long term exposure to ethylbenzene (1.15) and xylene (17.32) exceeded the HQ unit value. Total hazard indices (HI) of 63.23 were obtained for non-cancer risks. Type of the smoked tobacco was the most important factor influencing BTEX concentrations in the cafes. BTEX concentrations in indoor ambient air of Ardabil waterpipe cafes were noticeably high, and therefore may pose important risks for human health on both short and long term exposures.
Descriptors
Links
Book Title
Database
Publisher
Elsevier B.V
Data Source
Authors
Hazrati,S., Rostami,R., Fazlzadeh,M.
Original/Translated Title
URL
Date of Electronic
20150422
PMCID
Editors