Softening up on the hardening hypothesis
نویسندگان
چکیده
منابع مشابه
Softening up on the hardening hypothesis.
The hardening hypothesis has intuitive and common sense appeal: in jurisdictions that have implemented evidence-based tobacco control policies, the smokers who have a relatively easy time quitting will quit, and as the future unfolds there will be an increasing proportion of remaining smokers who cannot quit and are more resistant to quitting than smokers in the past. In this context, ‘hardenin...
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Tobacco control has made great progress in reducing smoking prevalence in countries where cigarette smoking rates were once high, as in the UK. When prevalence began to fall at a slower rate from the late 1980s, a number of commentators suggested this may be due to the remaining smokers becoming more ‘hardened’ to cessation, that is, less likely to be influenced by cessation measures. To assess...
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The structural complexity of soft gels is at the origin of a versatile mechanical response that allows for large deformation, controlled elastic recovery, and toughness in the same material. A limit to exploiting the potential of such materials is the insufficient fundamental understanding of the microstructural origin of the bulk mechanical properties. Here we investigate the role of the netwo...
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Dependence of mechanical properties of geomaterials on the variable chemical environment or advancement of chemical or mineralogical reactions is known to be a crucial factor in many cases of mechanical stability of geo-masses. Processes of mineral dissolution usually results in material weakening while precipitation of minerals such as of silica in aging or calcite in clay fractures may lead t...
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ژورنال
عنوان ژورنال: Tobacco Control
سال: 2012
ISSN: 0964-4563,1468-3318
DOI: 10.1136/tobaccocontrol-2011-050381