O abscesso agudo é uma manifestação comum e necessita de tratamento emergencial. Em seu estágio avançado pode drenar espontaneamente através de fístula, podendo ser extrabucal, dependendo do dente causador, localização radicular, espessura do osso e inserções musculares. A drenagem espontânea pode deixar cicatriz significante. Uma fístula extrabucal que faz comunicação com a boca recebe constan...

Greenhouse gas " al dente " : Exposure of the nonpolar ZnO (101 0) surface to CO 2 at 95 K leads to the formation of an unusual tridentate carbonate species. Use of several experimental techniques (for example, high-resolution electron energy loss spectroscopy (HREELS)) and theoretical calculations provides insight into the activation of CO 2 on the zinc oxide surface.

Dens evaginatus is a rare dental anomaly characterized by the development of a tubercle on the occlusal surface of the tooth and can cause pulpitis, pulp necrosis, and periapical periodontitis due to tubercular fracture or attrition. Unlike with caries, pain caused by dens evaginatus may manifest itself in a distant location. Therefore, diagnosing the cause of that pain may prove problematic. D...

In situ electrochemical extended X-ray absorption fine structure (EXAFS) was used to evaluate the structure of Pt dendrimer-encapsulated nanoparticles (DENs) during the oxygen reduction reaction (ORR). The DENs contained an average of just 225 atoms each. The results indicate that the Pt coordination number (CN) decreases when the electrode potential is moved to positive values. The results are...

Platinum dendrimer-encapsulated nanoparticles (DENs) containing an average of 55, 100, 147, 200, and 240 atoms were prepared within sixth-generation, hydroxyl-terminated, poly(amidoamine) dendrimers. These DENs were immobilized on glassy carbon electrodes, and the effect of particle size on the kinetics of the oxygen reduction reaction (ORR) was quantitatively evaluated using rotating disk volt...

Effects of fragmentation on the ecology of organisms occupying dendritic ecological networks (DENs) have recently been described through both conceptual and mathematical models, but few hypotheses have been tested in complex, real-world ecosystems. Stream fishes provide a model system for assessing effects of fragmentation on the structure of communities occurring within DENs, including how fra...

Modeling and Simulation of an Emulsion Copolymerization Process Sabrina Copelli*, Mario Dente, Marco Derudi, Giulia Bozzano, Vincenzo Torretta Università degli Studi dell’Insubria Dip. di Scienza e Alta Tecnologia Via G.B. Vico 46 21100 Varese Italy b Politecnico di Milano Dip. di Chimica, Materiali e Ingegneria Chimica “G. Natta”P.za Leonardo da Vinci 20133 Milano Italy sabrina.copelli@uninsub...

The societies of group-living carnivores that neither hunt nor interact cooperatively may arise due to ecological drivers and/or constraints. In this study we evaluate whether group-living may be intrinsically associated with fossoriality; a link that is well supported in other taxa, but hitherto under-evaluated in the Carnivora. We make two over-arching predictions: (i) that fossoriality will ...

This paper presents the approach and the results of a kinetic generator in the area of hydrocarbon pyrolysis mechanisms. Radical formation and successive radical decomposition are taken into account. Care is paid to the description of molecule identification procedure and to its homomorphism which enables unique and no ambiguous reactions. New results referring to the pyrolysis of olefins as we...