The paper discusses the results of 30 years of radon indoor entry research. While some progress has been made, many discrepancies between current theories and experimental data still remain. Misconceptions of radon transport mechanisms in homes are analyzed. The role of US Environmental Protection Agency in radon indoor entry research is examined and the agency's policies are criticize...

In the past two decades, step-indexed logical relations and separation logics have both come to play a major role in semantics verification research. More recently, they been married together form of like VST, iCAP, Iris, which provide powerful tools for (among other things) building semantic models richly typed languages Rust. these logics, propositions are given using model, reasoning is refl...

Background and Purpose: The problematic reduction of civic engagement in local communities of Khuzestan province in the southwest of Iran has became a serious issue for research in social planning and policy making. Efforts have been made to study the risk factors as the deterrents to engaging in the society. Methods: this study aims to investigate the factors influencing civic engagement amon...

the paper discusses the results of 30 years of radon indoor entry research. while some progress has been made, many discrepancies between current theories and experimental data still remain. misconceptions of radon transport mechanisms in homes are analyzed. the role of us environmental protection agency in radon indoor entry research is examined and the agency's policies are criticized. t...