Suchergebnisse

The aim of this study is to evaluate the efficacy of radon remedial action in a school on the Ischia island, South Italy, affected by indoor radon concentration higher than the value of 500 Bq/m3. This value is the limit imposed by the Italian legislation, to above which corrective actions in schools are necessary. Before the application of remedial action, indoor radon concentrations were measured in 9 rooms of the school. The measurements were performed with LR-115 passive alpha detectors (SSNTDs) and E-Perm. The remedial action was conducted in one of the office affected by high radon concentration using a Radonstop paint applied after the construction of a concrete slab under the floor. The effect of remedial action was the reduction of the concentration of radon of 41% and moreover it has demonstrated to be durable over time. The chosen method is cheap and easy to apply and it could be designed for various types of building. This method can be applied to new and existing buildings that show high dose values.

Using the Internet as a research tool presents new challenges including coping with information overload, problems obtaining and evaluating quality sources, and successfully integrating the information obtained using critical thinking. This article briefly describes the problems related to conducting research on the Internet. It then proposes a solution to help individuals conduct effective and efficient Internet-based business research. A sample World Wide Web-based search is provided to illustrate the essential strategies and steps necessary for conducting effective Internet research.