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Effect of simulated sulfuric acid rain on the chemistry of a sulfate-absorbing forest soil 1985 Corvallis Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Corvallis, OR 97333
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Water, air, and soil pollution
Periodical, Abbrev.
Water Air Soil Pollut.
Pub Date Free Form
1985/
Volume
25
Issue
2
Start Page
185
Other Pages
193
Notes
Place of Publication
ISSN/ISBN
0049-6979
Accession Number
Language
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
Simulated H2SO4 rain (pH 3.0, 3.5, 4.0) or control rain (pH 5.6) was applied for 3.5 yr to large lysimeter boxes containing a sulfate-adsorbing forest soil and either red alder (Alnus rubra Bong) or sugar maple (Acer saccharum Marsh.) seedlings. After removal of the plants and the litter layer, soil samples were obtained at 15-cm intervals to a total depth of 90 cm. Elevated SO4 concentrations caused by the simulated H2SO4 rain were most pronounced for the top 15 cm, but extended down to 45 cm (maple) or 75 cm (alder). There were no effects on SO4 concentrations at a depth of 75 to 90 cm. This confirmed the existence of a sulfate front between 20 cm and 100 cm, as postulated earlier on the basis of extracted soil solutions. Decreases in Mg and Ca concentrations, base saturation, and soil pH were limited to the uppermost 15 cm and, in most cases, to the pH 3.0 treatment. Concentrations of Mg and Ca for the pH 3.0 treatments were greater than control at a depth of 15 to 30 cm, indicating transport of these cations from the soil surface. Concentrations of Na and K, and cation exchange capacity, were not affected by simulated H2SO4 rain. Elevated concentrations of NO3 and extractable Zn throughout the alder systems indicated (1) either increased rates of symbiotic N-fixation or decreased rates of N immobilization; and (2) mobilization of Zn by all acid rain treatments.
Descriptors
sulfate, sulfuric acid, acid rain, adsorption, vascular plant, nonhuman, priority journal, soil, theoretical study, tree
Links
Book Title
Database
Embase
Publisher
Data Source
Embase
Authors
Lee,J. J.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Effect of smoking habit on circulating adipokines in diabetic and non-diabetic subjects 2008
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Ann Nutr Metab
Periodical, Abbrev.
Ann.Nutr.Metab.
Pub Date Free Form
Volume
52
Issue
4
Start Page
329
Other Pages
34
Notes
ID: 18714151
Place of Publication
ISSN/ISBN
Accession Number
Language
en
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
BACKGROUND: Despite the well-known inverse association between smoking and body weight, there have been conflicting reports on the association between smoking and adipokines such as leptin and adiponectin. AIM: To determine and compare whether tobacco smoking (cigarettes or sheesha) affects circulating levels of adiponectin and/or influences leptin and leptin receptor (sOb-R) concentrations and free leptin in diabetic and non-diabetic subjects. METHODS AND SUBJECTS: Fasting plasma adiponectin, leptin, sOb-R, glucose, insulin, and lipid profile were determined in 236 subjects grouped as control subjects (n = 53); non-diabetic cigarette smokers (n = 34), non-diabetic sheesha smokers (n = 38), diabetic nonsmokers (n = 75) and diabetic smokers (n = 36). Uni- and multivariate regression analyses were used to determine the associations of these variables with body mass index (BMI) and smoking. RESULTS: When compared to control subjects, smoking cigarettes or sheesha was associated with significantly higher glucose, insulin resistance, total cholesterol, triglycerides, low-density lipoprotein cholesterol (LDL-C) and lower serum leptin, sOb-R and free leptin. The effects of smoking on BMI, leptin and sOb-R were dose-dependent. Binary logistic regression analysis showed that smoking is a significant determinant of BMI; leptin, sOb-R, free leptin index, adiponectin and LDL-C. CONCLUSIONS: We conclude that smoking sheesha does not reduce the metabolic effects of smoking. Smoking may modify leptin receptors and modulate leptin synthesis but the weight-lowering effect may not be related to leptin-induced anorectic signals.
Descriptors
Adipokines/blood, Diabetes Mellitus, Type 2/blood, Smoking/adverse effects, Smoking/blood, Adiponectin/blood, Adult, Blood Glucose/metabolism, Body Mass Index, Case-Control Studies, Cholesterol/blood, Dose-Response Relationship, Drug, Humans, Insulin Resistance, Leptin/blood, Lipids/blood, Male, Middle Aged, Receptors, Leptin/blood, Receptors, Leptin/metabolism
Links
http://dx.doi.org/10.1159/000151487
Book Title
Database
MEDLINE; http://www.globalhealthlibrary.net/
Publisher
Data Source
Authors
Al Mutairi,Sana,S., Mojiminiyi,Olusegun A., Shihab-Eldeen,Aida, Al Sharafi,Ahmad, Abdella,Nabila
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Effect of smoking on aerobic microflora of dental plaques 1990
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Bulletin of High Institute of Public Health
Periodical, Abbrev.
Pub Date Free Form
Volume
20
Issue
1
Start Page
59
Other Pages
65
Notes
ID: 18086
Place of Publication
ISSN/ISBN
Accession Number
Language
english
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
Dental plaques of 36 smokers of cigarettes, shisha and ghoza with a mean age of 35.4 years As well as those of a control group of 23] non smokers of similar age were investigated to study their aerobic microflora, The specimen were taken from So dental plaque. Their bacterial population was estimated. Smoker! using cigarette had the lower score gingivitis 0-2] while those using shisha and ghoza had higher score 3-4] as compared with control group. showing Zero-1] score. The type of organisms en countered in smokers was not markedly different from that in not smokers but their numbers varied a lot. However, streptococci diphtheroids and micrococci took the upper hand in the latter while lactose and non lactose fermenting gram ve bacilli and Candida tropicalis were absent from such samples. Higher counts of fungi were noted in smokers in general and those of shisha i ghoza in particular. Association of high numbers of yeasts and bacteria was noted in 19/36 and 5/23 of smokers and non smokers respectively. Three types of yeasts were isolated C. albicans C. tropicalis saccharomyces cervicae. While filamentous fungi represented by aspergillus and penicillium spp. It was obviom from that when there was rise in number of fungi iii smokers number of bacteria was simulataneouly increased as well
Descriptors
Bacteria, Aerobic, Smoking
Links
http://pesquisa.bvsalud.org/ghl/resource/en/emro-18086
Book Title
Database
GHL; http://www.globalhealthlibrary.net/
Publisher
Data Source
Authors
Wageh,Nagaat M., Abou Donia,Hadia
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Effect of smoking reduction on later cessation: a pilot experimental study 2003 Department of Psychiatry, University of Vermont Burlington, VT, USA. carpenter@musc.edu
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
5
Issue
2
Start Page
155
Other Pages
162
Notes
LR: 20151119; GR: DA 00450/DA/NIDA NIH HHS/United States; GR: DA 07242/DA/NIDA NIH HHS/United States; GR: DA 11557/DA/NIDA NIH HHS/United States; JID: 9815751; 0 (Nicotinic Agonists); 6M3C89ZY6R (Nicotine); CIN: Nicotine Tob Res. 2003 Apr;5(2):141-4. PMID
Place of Publication
England
ISSN/ISBN
1462-2203; 1462-2203
Accession Number
PMID: 12745487
Language
eng
SubFile
Clinical Trial; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.; IM
DOI
V9A2243679FULKWK [pii]
Output Language
Unknown(0)
PMID
12745487
Abstract
It is unclear whether reducing the number of cigarettes in smokers not trying to quit increases or decreases the likelihood of future quitting. In a pilot study, smokers not currently interested in quitting (n=67) were randomized to two groups. Experimental participants received behavioral treatment and nicotine replacement therapy (choice of gum, patch, or inhaler) to reduce smoking by 50% over 4 weeks, followed by brief advice to quit. Usual-care participants received only brief advice to quit and nicotine replacement if they decided to quit. During the 4-week treatment period, nonabstaining reduction participants decreased from 23 to 14 cigarettes per day (p<.01) and maintained their reduction over the 6-month follow-up period. At the 6-month follow-up, 35% of usual-care and 41% of reduction participants (nonsignificant [ns]) moved forward in their stage of change. Over the 6 months, 34% of usual-care participants had at least one 24-h quit attempt, compared with 25% of reduction participants (ns). A total of 9% of usual-care participants remained quit at 6 months vs. 13% in the reduction group (ns). These preliminary results suggest that adding a reduction option neither increases nor undermines interest in cessation. Higher than expected rates of attempted cessation and quitting in the usual-care group suggest that we recruited smokers whose motivation to quit was above average. Thus, a replication test in a less-motivated group of smokers is needed.
Descriptors
Administration, Cutaneous, Adult, Behavior Therapy/methods, Female, Follow-Up Studies, Humans, Incidence, Male, Motivation, Nicotine/administration & dosage, Nicotinic Agonists/administration & dosage, Pilot Projects, Smoking/prevention & control/therapy, Smoking Cessation/methods, Time Factors
Links
Book Title
Database
Publisher
Data Source
Authors
Carpenter,M. J., Hughes,J. R., Keely,J. P.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Effect of supragingival plaque control in smokers and never-smokers: 6-month evaluation of patients with periodontitis 2007 Department of Periodontics, Sao Paulo State University, Araraquara, SP, Brazil.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Journal of periodontology
Periodical, Abbrev.
J.Periodontol.
Pub Date Free Form
Aug
Volume
78
Issue
8
Start Page
1515
Other Pages
1521
Notes
LR: 20101118; JID: 8000345; 0 (Toothpastes); ppublish
Place of Publication
United States
ISSN/ISBN
0022-3492; 0022-3492
Accession Number
PMID: 17668970
Language
eng
SubFile
Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't; D; IM
DOI
10.1902/jop.2007.060462 [doi]
Output Language
Unknown(0)
PMID
17668970
Abstract
BACKGROUND: The effect of supragingival plaque control on clinical signs of periodontitis is controversial, particularly when smoking habits are considered. This study evaluated the clinical effects of supragingival plaque control on clinical signs of periodontitis in smokers and never-smokers. METHODS: The following data were collected for 25 never-smokers and 25 smokers at baseline and 30, 90, and 180 days: visible plaque index (VPI), gingival bleeding index (GBI), bleeding on probing (BOP), periodontal probing depth (PD), and clinical attachment loss (CAL). After baseline examinations, supragingival scaling was performed. Oral hygiene practices were reinforced and reevaluated weekly during the experimental period. Linear models adjusted for clustering of observations within individuals were used for statistical analysis. RESULTS: Reductions in VPI were significant for both groups, with no intergroup differences. GBI at baseline was similar between groups, and at 30, 90, and 180 days, smokers had a lower GBI than never-smokers. Significant reductions were observed in PD for shallow (1 to 3 mm), moderate (4 to 5 mm), and deep sites (> or = 6 mm) in both groups. CAL was significantly greater in smokers throughout the study, but gains in attachment were similar for both groups (0.71 to 1.00 mm). BOP reductions were similar in both groups. CONCLUSIONS: Supragingival plaque control resulted in significant changes in clinical parameters associated with gingivitis and periodontitis. Smoking did not affect results, regardless of initial PD.
Descriptors
Dental Devices, Home Care, Dental Plaque/prevention & control, Dental Plaque Index, Dental Scaling, Female, Follow-Up Studies, Gingival Hemorrhage/prevention & control, Gingivitis/prevention & control, Humans, Longitudinal Studies, Male, Middle Aged, Oral Hygiene, Periodontal Attachment Loss/prevention & control, Periodontal Index, Periodontal Pocket/prevention & control, Periodontitis/prevention & control, Reproducibility of Results, Smoking, Toothbrushing, Toothpastes/therapeutic use
Links
Book Title
Database
Publisher
Data Source
Authors
Gomes,S. C., Piccinin,F. B., Susin,C., Oppermann,R. V., Marcantonio,R. A.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Effect of teenage smoking on the prevalence of periodontal bacteria 2012 Network of Academic Health Centers, Department of General Practice and Primary Health Care, Institute of Clinical Medicine, University of Helsinki, PL 41, Helsinki 00014, Finland. amkheikk@mappi.helsinki.fi
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Clinical oral investigations
Periodical, Abbrev.
Clin.Oral Investig.
Pub Date Free Form
Apr
Volume
16
Issue
2
Start Page
571
Other Pages
580
Notes
LR: 20131121; JID: 9707115; 2010/06/28 [received]; 2011/02/02 [accepted]; 2011/02/22 [aheadofprint]; ppublish
Place of Publication
Germany
ISSN/ISBN
1436-3771; 1432-6981
Accession Number
PMID: 21340603
Language
eng
SubFile
Comparative Study; Journal Article; Research Support, Non-U.S. Gov't; D
DOI
10.1007/s00784-011-0521-3 [doi]
Output Language
Unknown(0)
PMID
21340603
Abstract
The aim of our study was to investigate how teenage smoking affects the prevalence of periodontal bacteria and periodontal health with the hypothesis that smoking increases the prevalence of the bacteria. Oral health of 264 adolescents (15- to 16-year-olds) was clinically examined, and their smoking history was recorded. The participants also filled in a structured questionnaire recording their general health and health habits. Pooled subgingival plaque samples were taken for polymerase chain reaction analysis of Aggregatibacter actinomycetemcomitans, Porphyromonas gingivalis, Tannerella forsythia, Prevotella intermedia, Prevotella nigrescens, and Treponema denticola. The prevalence of P. intermedia (21% vs. 4%, p = 0.01) and T. forsythia and T. denticola (23% vs. 8%, p
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
Heikkinen,A.M., Pitkaniemi,J., Kari,K., Pajukanta,R., Elonheimo,O., Koskenvuo,M., Meurman,J.H.
Original/Translated Title
URL
Date of Electronic
20110222
PMCID
Editors
Effect of temperature and pipe material on biofilm formation and survival of Escherichia coli in used dinking water pipes: A laboratory-based study 2006 Silhan, J., Institute of Environment and Resources, Technical University of Denmark, 2800 Lyngby, Denmark
Source Type
Print(0)
Ref Type
Generic
Periodical, Full
Water Science and Technology
Periodical, Abbrev.
Water Sci. Technol.
Pub Date Free Form
2006/
Volume
54
Issue
3
Start Page
49
Other Pages
56
Notes
Place of Publication
ISSN/ISBN
0273-1223
Accession Number
Language
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
Segments of used drinking water pipes of galvanised steel (GS), cross-linked polyethylene (PEX), copper pipes (Cu) or new medium-density polyethylene (PE) were investigated for the formation of biofilm and survival of E. coli in biofilm and in the water phase. Pipes were filled with water and incubated at 15°C or 35°C under static conditions. Biofilm formation was followed during 32, 40 and 56 (58) d. The most dense biofilm was formed on GS, reaching approximately 4.7 × 105 CFU/ cm2 measured as heterotrophic plate count (HPC), and at the other materials the density reached 3 × 103CFU/cm2 on PE and PEX and 5 × 101 and 5 × 102 CFU/cm2 on Cu pipes after 58 d at 15°C. Biofilm HPC values were higher at 35°C than at 15°C, with only slightly higher values on the metals, but 100-fold higher on PE and PEX. Adenosine triphosphate (ATP) measurements confirmed the general trends observed by HPC. Higher temperature was seen to be an important factor reducing E. coli survival in the water phase in drinking water pipes. At 15°C E. coli survived more than 4 d in GS and Cu pipes and 8 d in PE pipes, but was not detected after 48 h at 35°C. The E. coli survived longer at both temperatures in the glass control bottles than in the drinking water pipes. Despite the obvious biofilm formation, E coli was not detected in the biofilm at any of the investigated surfaces. © IWA Publishing 2006.
Descriptors
adenosine triphosphate, copper, drinking water, polyethylene, steel, article, bacterial count, bacterial survival, biofilm, controlled study, Escherichia coli, heterotrophy, high temperature, incubation temperature, laboratory test, nonhuman, pipeline, temperature dependence, water contamination, water supply
Links
Book Title
Database
Embase; MEDLINE
Publisher
Data Source
Embase
Authors
Silhan,J., Corfitzen,C. B., Albrechtsen,H. J.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Effect of the Purple Corn Beverage "Chicha Morada" in Composite Resin during Dental Bleaching 2016 Odontologia Restauradora y Estetica, Facultad de Estomatologia, Universidad Peruana Cayetano Heredia, Lima, Peru.; Odontologia Restauradora y Estetica, Facultad de Estomatologia, Universidad Peruana Cayetano Heredia, Lima, Peru.; Ingenieria de Materiales,
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Scientifica
Periodical, Abbrev.
Scientifica (Cairo)
Pub Date Free Form
Volume
2016
Issue
Start Page
2970548
Other Pages
Notes
LR: 20160403; JID: 101589932; OID: NLM: PMC4791506; 2015/12/15 [received]; 2016/02/09 [accepted]; 2016/03/01 [epublish]; ppublish
Place of Publication
Egypt
ISSN/ISBN
2090-908X; 2090-908X
Accession Number
PMID: 27034897
Language
eng
SubFile
Journal Article
DOI
10.1155/2016/2970548 [doi]
Output Language
Unknown(0)
PMID
27034897
Abstract
During dental bleaching the staining potential of the surface would increase. This study aims to evaluate the staining susceptibility of one bleached composite resin after the exposure to three different beverages: Peruvian purple corn based beverage (chicha morada), green tea, and distilled water. Thirty disk-shaped specimens of one nanofill composite resin were prepared. The specimens were then divided into six groups (n = 5): purple corn (P), purple corn + bleaching (PB), green tea (T), green tea + bleaching (TB), distilled water (W), and distilled water + bleaching (WB). In groups that received bleaching, two sessions of bleaching with 35% hydrogen peroxide were done. Following bleaching, specimens were exposed to each liquid thirty minutes daily. Color was measured with a digital spectrophotometer. For statistical analysis, color measurement differences between the obtained results were used: during bleaching, after bleaching, and during + after bleaching. Two-way ANOVA was used to compare the color changes in the resins of all groups (p 3.3).
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
Acuna,E.D., Delgado-Cotrina,L., Rumiche,F.A., Tay,L.Y.
Original/Translated Title
URL
Date of Electronic
20160301
PMCID
PMC4791506
Editors
Effect of tooth-related factors on the shear bond strengths obtained with CO2 laser conditioning of enamel 1997 Department of Dentistry, University of Queensland.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Australian Dental Journal
Periodical, Abbrev.
Aust.Dent.J.
Pub Date Free Form
Apr
Volume
42
Issue
2
Start Page
81
Other Pages
84
Notes
LR: 20131121; JID: 0370612; 0 (Composite Resins); 0 (Dentin-Bonding Agents); 0 (Phosphoric Acids); 0 (Resin Cements); 0 (Scotchbond Multi-Purpose); 142M471B3J (Carbon Dioxide); E4GA8884NN (phosphoric acid); ppublish
Place of Publication
AUSTRALIA
ISSN/ISBN
0045-0421; 0045-0421
Accession Number
PMID: 9153834
Language
eng
SubFile
Comparative Study; Journal Article; Research Support, Non-U.S. Gov't; D; IM
DOI
Output Language
Unknown(0)
PMID
9153834
Abstract
Carbon dioxide (CO2) lasers are capable of producing surface irregularities in human enamel which resemble those resulting from etching of enamel with orthophosphoric acid. This report presents the results of a laboratory study which examined the effect of selected tooth-related variables on shear bond strength between a current generation bonding agent (Scotchbond MultiPurpose) and acid-etched or laser-conditioned human enamel. There were no significant differences in shear bond strength between human maxillary central incisor teeth, first premolars, and third molars in either the acid etch or laser-conditioned groups. Polishing of enamel to give a flat surface increased the shear bond strength obtained with acid etching, but did not alter significantly bond strengths achieved with laser conditioning. There was a tendency for a higher bond strength with acid etching, but not with laser conditioning, in porcine molar enamel compared with human molar and bovine incisor enamel. In terms of the mode of operation of the laser, the repetitively pulsed mode resulted in a two-fold improvement in shear bond strength compared with the single pulse mode. These results indicate that shear bond strengths in the order of 10 MPa can be obtained reliably on human teeth using laser conditioning with pulsed modes in the absence of any other preparation of the natural enamel surface.
Descriptors
Acid Etching, Dental, Animals, Bicuspid, Carbon Dioxide, Cattle, Composite Resins/chemistry, Dental Bonding, Dental Enamel/radiation effects/ultrastructure, Dental Prophylaxis, Dentin-Bonding Agents/chemistry, Humans, Incisor, Lasers, Molar, Phosphoric Acids, Resin Cements, Species Specificity, Swine, Tensile Strength, Tooth Preparation/methods
Links
Book Title
Database
Publisher
Data Source
Authors
Shahabi,S., Brockhurst,P. J., Walsh,L. J.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Effect of trehalose addition on volatiles responsible for strawberry aroma 2013 Faculty of Food Technology, F. Kuhada 20, 31000 Osijek, Croatia. mirela.kopjar@ptfos.hr; Biotechnical Faculty, Jamnikarjeva 101, 1000 Ljubljana, Slovenia.; Biotechnical Faculty, Jamnikarjeva 101, 1000 Ljubljana, Slovenia.; Biotechnical Faculty, Jamnikarje
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Natural product communications
Periodical, Abbrev.
Nat.Prod.Commun.
Pub Date Free Form
Dec
Volume
8
Issue
12
Start Page
1767
Other Pages
1770
Notes
JID: 101477873; 0 (Furans); 0 (Lactones); 0 (Volatile Organic Compounds); 3658-77-3 (furaneol); 7HLS05KP9O (decan-4-olide); B8WCK70T7I (Trehalose); ppublish
Place of Publication
United States
ISSN/ISBN
1934-578X; 1555-9475
Accession Number
PMID: 24555295
Language
eng
SubFile
Evaluation Studies; Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
Output Language
Unknown(0)
PMID
24555295
Abstract
Aroma is one of the most important quality properties of food products and has a great influence on quality and acceptability of foods. Since it is very difficult to control, in this study the effect of addition of trehalose (3, 5 and 10%) to freeze-dried strawberry cream fillings was investigated as a possible means for retention of some of the aroma compounds responsible for the strawberry aroma. In samples with added trehalose, higher amounts of fruity esters were determined. Increase of trehalose content did not cause a proportional increase in the amount of fruity esters. However, results of our research showed that trehalose addition did not have the same effect on both gamma-decalactone and furaneol.
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
Kopjar,M., Hribar,J., Simcic,M., Zlatic,E., Pozrl,T., Pilizota,V.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors