Combining environmental factors and agriculturalists' observations of environmental changes in the traditional terrace system of the Amalfi coast (southern Italy).

Terraces are traditional engineered ecosystems that affect the hydro-geological equilibrium, slope stability, and local communities. The aims of this paper are (i) identifying environmental factors that affect terrace stability in the Amalfi Coast, (ii) defining agriculturalists' observations on environmental changes within that system and (iii) exploring potentiality of these observations to better define conservation strategies. All available data on physical and ecological factors recognized to affect the terrace system were collected and analyzed.

Folk phytotherapy of the Amalfi Coast (Campania, Southern Italy).

Ethnopharmacological Relevance: In the Amalfi Coast, Campania (Southern Italy) a total number of 102 plant species are used for medicinal purposes, with a total of 276 different uses, among which, 183 are new for the area and 34 are new for Italy.

Materials And Methods: Data were obtained through semi-structured interviews with 214 inhabitants of the study area.

Results: Folk phytotherapy is intended mainly as a mode of primary health care in order to heal minor illnesses, and especially disease related to the respiratory, urogenital, skeletal and gastrointestinal systems and skin problems.

The role of van der Waals forces in adhesion of micromachined surfaces.

Interfacial adhesion and friction are important factors in determining the performance and reliability of microelectromechanical systems. We demonstrate that the adhesion of micromachined surfaces is in a regime not considered by standard rough surface adhesion models. At small roughness values, our experiments and models show unambiguously that the adhesion is mainly due to van der Waals dispersion forces acting across extensive non-contacting areas and that it is related to 1/Dave2, where Dave is the average surface separation.