In DSM, nicotine dependence is included under the general definition of substance dependence.  The essential feature of Substance Dependence is a cluster of cognitive, behavioral, and physiologic symptoms indicating that the individual continues use of the substance despite significant substance-related problems.
The Best Materials to Cover your Greenhouse. 1  Glass: The traditional greenhouse covering, glass is the preferred material for permanence. 2  Film Plastic: Film plastic is one sixth to one tenth of the cost per square foot of a glass covered structure.
Concrete is the default material for basement slabs, but the cement that's used as the binder in concrete is a significant source of greenhouse gas emissions.That has one reader wondering about other options.eeping ground moisture out of the basement is important, but it is the rigid foam insulation and the vapor barrier that actually do the work, not the concrete, says GBA GreenBuildingAdvisor.com senior editor Martin Holladay.