Comparison between algebraical and numerical solutions of the characteristic equation for ripple motion in presence of a surface film

Numerical solutions of the characteristic equation for ripple motion in the presence of a surface film due to a tensioactive substance are obtained. A comparison between numerical solutions and algebraical approximate ones, obtained by several authors, is made. The role of tensioactive substances in increasing the vorticity of waves in the gravito-capillary frequency region is evidentiated by the dynamics of water under the surface. In particular the main dynamical differences between the two possible wave modes of water in such conditions (Laplace and Marangoni waves) are examined

Ozonized sunflower seeds oil in the treatment of pressure ulcers

Ozone therapy can be defined as a bio-oxidative therapy in which the ozone is administered through different routes (gaseous, dissolved in water or oil) to obtain a beneficial effect in a living system sick. Ozone has many actions that have encouraged the use of this molecule in the field of dentistry, orthopedics and dermatology. In fact, ozone has the following properties: antimicrobial, immunostimulant, antihypoxic, biosynthetic, analgesic and hemostatic. The substrates containing unsaturated lipids react with the O2/O3 gas mixture causing the formation of derivatives ozonized therapeutically active. The therapeutic use of ozone gas for the treatment of skin diseases is unwieldy and for this reason the ozonated oils may represent a valid alternative. The oil extracted from the seeds of sunflower is characterized by a high percentage of unsaturated fatty acids and a low content of saturated fatty acids. Ozonation of sunflower seeds oil leads to the formation of ozonides of linoleic acid which possess high stability (up to 15 years). The daily application of ozonized oils in pressure ulcers has resulted in the rapid disappearance of bacterial superinfection and the formation of granulation tissue, which favored the reduction of the affected are

Effect of homotaurine in patients with cognitive impairment: Results from an Italian observational retrospective study

Background & Aims: This observational retrospective study aimed at evaluating the effects of one-year administration of homotaurine (tramiprosate) in a sample patients presenting with symptoms of mild cognitive impairment. Methods: Patient’s demographic data and medical history are reported. Each patient performed brain imaging and neuropsychological assessment to reach the diagnosis. Each patient assumed 100 mg total dose of homotaurine/day. The evolution of the cognitive decline over time was evaluated my means of the Mini Mental State Examination (MMSE). Results: 245 patients from 28 different centres in Italy were recruited. Significant improvements from baseline expressed as mean MMSE total score were observed in patients with aMCI at months 8 and 12 (p < 0.0001), and in those with mMCI at month 4 (p < 0.05). Conclusions: Administration of homotaurine revealed beneficial effects in our sample population of MCI patients. Our results indicate clearly that homotaurine may well be considered as a potential symptomatic treatment for cognitive symptoms. Further research is however needed to clarify whether this compound could influence the progression of cognitive decline

Trattato di Diritto dell'Ambiente - Vol. II: I procedimenti Amministrativi per la tutela dell'ambiente - Capitolo 10: L'accertamento del danno ambientale

Il Trattato si compone di tre volumi, con i quali si d\ue0 conto in modo pressoch\ue9 completo dell'evoluzione del diritto dell'ambiente, della sua collocazione nell'ordinamento giuridico generale e delle normative di settore che ne costituiscono il corpo disciplinare. Alla luce di ci\uf2, l'approccio dei singoli contributi di ognuno dei tre volumi del Trattato vuole essere eminentemente pratico, senza tuttavia rinunciare ad una pi\uf9 generale e sistematica riflessione intorno alla problematiche che vengono affrontate. E pour cause, verrebbe da ribadire, poich\ue9 il diritto dell'ambiente intercetta s\uec problemi, ed anche bisogni ed emergenze, a carattere concreto ma svolge, altres\uec, una funzione maieutica delineando soluzioni utili ed efficaci per molti problemi, anche al di fuori (oppure oltre) i confini della materia strettamente ambientale