Benthic foraminifera response and geochemical characterization of the coastal environment surrounding the polluted industrial area of Portovesme (South-Western Sardinia, Italy).

To study the benthic foraminifers' response to heavy metal pollution and analyse the geochemical parameters, samples of surface sediments were collected in 2005 and 2006 from a polluted coastal zone shorefront to the industrial complex of Portoscuso-Portovesme (Sulcis, South-Western Sardinia). The samples came from the upper 1-2 cm of the undisturbed sediments in water less than 2m deep, along coastline (about 8.5 km in length) proximal to emerged alluvial plain. The entire examined marine area represents a shallow inner shelf, which is physiographically fairly protected and characterized by low turbulence, but subjected to southwards littoral drift. Geochemical analyses of seawater, sediments and foraminiferal tests correlated to biotic indexes (Dominance, Shannon-Weaver, Simpson, Eveness, Menhinick, Margalef, Equitability, Fisher-alpha, Berger-Parker and Q-mode Cluster Analyses--Ward Method) and provide data on environmental stress. A total of 38 benthic foraminiferal species were identified. Increasing pollution results in low species diversity, low population density and more frequent abnormal specimens. Results from ESEM images allow recognition of a strong infestation on the calcareous foraminiferal tests by microbial communities developed in the polluted environment.

[Clinico-statistical survey of neoplasms of the oral cavity in a Sardinian population]. / Rilievi clinico-statistici sulle neoplasie del cavo orale nella popolazione sarda.

The AA. examine 14,987 bioptic investigations comings from Anatomy and Pathologic Histology Institute of Cagliari University relieved during the period 1936-1968 (twenty-eight years). They stop on main data giving prominence to: incidence of stomatologic cases, of benignant and malignant tumours, of inflammatory and precancerous states in the mouth. They moreover describe neoplasia frequency in reference to histologic type, to sex, to age and to localization.

[About odontomas]. / In tema di odontomi.

The AA., after to have passed in review etiopathogenetic interpretations of odontomas and symptomatology, report 12 cases, from Odontostomatologic Clinic of Cagliari, dwelling on one of them especially, where the two epithelial and connective components, made evident microscopically, let foresee probable reductions either connective eithen epithelial component.

[Paradoxical fluoride phenomena in a Sardegna district]. / Fenomeno paradosso del fluoro in un centro della Sardegna.

The authors in epidemiologic research on dental caries of primary-school children in a village having optimufluorotic water, put in evidence fluorine paradox phenomena founding high percentual of cariopatic subjects.

[Ossifying fibroma of the upper jaw of probable periosteal origin]. / Considerazioni sul fibroma ossificante del mascellare superiore di verosimile origine periostale.

The AA. describe a case of bone producing fibroma rising in a young patient after the drawing of a tooth. Histological reports, effected with different methods, confirmed this diagnosis.

[Apicectomy and replantation. Report of a clinical case]. / Apicectomia e reimpianto. Descrizione di un caso clinico.

The AA. report a case treated with cyst-enucleation, apicaectomy and tooth replantation and then prosthetic management, which they control for the last twenty years, and beyond initial expectations, they could establish an astonishing result indeed.