Article
Public health clinical demonstration project for smoking cessation in veterans with posttraumatic stress disorder.
Durham Veterans Affairs Medical Center, Durham, NC 27705, USA.
Addictive behaviors (impact factor:
2.25).
09/2009;
35(1):19-22.
DOI:10.1016/j.addbeh.2009.08.007
pp.19-22
Source: PubMed
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Cited In (0)
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Article: Equilibrium and kinetic studies for the sorption of 3-methoxybenzaldehyde on activated kaolinites.
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ABSTRACT: The sorption of 3-methoxybenzaldehyde on activated kaolinites has been investigated at different temperatures. Two types of activation tests were performed. The sorption equilibrium was studied by sorption isotherms in the temperature range 303-333K for natural (untreated), thermally and acid activated kaolinites. It was shown that the isotherm shapes were not affected by temperature and activation types of kaolinite. The absorbance data at 312nm were fitted reasonably well with the Langmuir and Freundlich isotherm models and the model parameters were determined for different temperatures. Thermodynamic quantities such as Gibbs free energy (DeltaG), the enthalpy (DeltaH) and the entropy change of sorption (DeltaS) were determined for natural, thermally and acid activated kaolinites. It was shown that the sorption processes were an endothermic reactions, controlled by physical mechanisms and spontaneously. Adsorption capacity of acid activated kaolinite for 3-methoxybenzaldehyde was higher compared to that of natural and thermally activated kaolinites at various temperatures. The adsorption and desorption rate constants (k(a) and k(d)) were obtained separately by applying a geometric approach to the first order Langmuir model. This method provided good conformity between the K from Langmuir parameters and K(geo) (k(a)/k(d)) from geometric approach.Journal of Hazardous Materials 04/2007; 141(1):128-39. · 4.17 Impact Factor
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Keywords
8 week abstinence
accessing intervention quit]
clinical demonstration project
clinical program
follow-up information
follow-up phone
follow-up telephone
Interested veterans
invitational letters
low-cost intervention
National Cancer Institute's Smoking Quitline
posttraumatic stress disorder
resources
smokers
smokers accessed intervention]
smoking cessation
smoking cessation intervention
standardized scripts offering
survey recipients
Veterans