Salt Crystallization in Limestone: Materials Decay and Chemomechanical Approach.

Salt crystallization is a particularly relevant issue in the conservation of limestones used in Cultural Heritage sites. In this study, various facies of limestones were characterized through porosimetric and mechanical tests. The samples were subjected to experiments to determine their resistance to salt crystallization by verifying the number of cycles at which 50% of them began to lose weight.

Data on coastal dunes vulnerability of eleven microtidal wave-dominated beaches of Sardinia (Italy, western Mediterranean).

This article contains data about the values of the Dune Vulnerability Index (DVI) and the Partial Index Vulnerability (IVp) of eleven coastal dune systems located in Sardinia (Italy, western Mediterranean). Specifically, we present the values of 59 variables that summarize the condition of the studied dune systems, clustered in five groups: Geomorphological Condition (GCD), Marine Influence (MI), Aeolian Influence (AI), Vegetation Condition (VC), and Human Effects (HE). Data were collected during numerous field surveys and using aerial-photos.

A simplified model for the combined wicking and evaporation of a NaCl solution in limestone.

Salt weathering is one of the major causes of the damage both in cultural heritage as well as in civil engineering constructions. A special case develops when there is a continuous wicking of a salt solution into a material in combination with evaporation of the moisture at its surface. In this study we are interested in the case where the absorption rate is much higher than the evaporation and as a result a salt concentration will build up at the drying surface resulting in crystallization.

[Hospitalized aged patients as a social problem. Preliminary study].

Hospitalisation of an aged person is undertaken for various reasons, partly medical, and partly (even primarily in some cases) social. Exaggerated hospitalisation can upset the functional efficiency of a hospital. In some instances, admission itself may be the cause of serious psychophysical deterioration.

[Primary atypical amyloidosis; a case report].

A case of diffuse primary amyloidosis with predominantly liver onset is reported. The absence of amyloid in the abdominal subcutaneous fat and in the rectal mucosa, the wide ECG voltage range, the absence of nephropathy and proteinuria as well as the absence of immunoglobulin involvement, are in contrast with autoptic findings of ubiquitous involvement of amyloid substance. It is considered that the pathogenesis of this disease is still open to discussion.