[ 1] Volcan Ecuador, a young, active shield volcano at the northwest tip of Isabela Island, Galá pagos, experienced at least one sector collapse event that removed its western half. The compositions of lavas exposed in the old caldera wall and fault scarps dissecting the outer shield together with young postcollapse lavas provide insights into the history of this volcano. Ar/ Ar and cosmogenic ...

To cite: Shah KM, Adaki S, Karagir A, et al. BMJ Case Rep Published online: [please include Day Month Year] doi:10.1136/bcr-2013009575 DESCRIPTION A 65-year-old female patient came to our dental clinic with a request for the replacement of missing teeth. Intraoral examination revealed mostly edentulous jaws with just a few retained teeth, namely the mandibular right and left first and second pr...

background & aim: regional odonto dysplasia (rod) is an unusual nonhereditary of teeth with significantly clinical and radiographic features. affected teeth usually remain unerupted or semi-erupted with a discolaration and irregular shape. radiographically these teeth have a large pulp chamber and thin layer of enamel and dentin with similar density. this article is introducing a female patient...

On examination, upper right canine and left upper central incisor were erupted which appeared normal. The tongue was slightly big with high arched palate. Hairs over the scalp, eyebrows, and lower eyelids were almost absent but normal on both upper eyelids. Skin over the central portion of the face was slightly atrophic, shiny, and revealed multiple telangiectasias (Fig. 1) mainly over the bila...

The density and viscosity values at T= (293.15 to 323.15) K for binary mixtures of nitromethane with 2-propanol, 2-butanol and 2-pentanol were measured over the entire composition range. From the experimental data, excess molar volumes, thermal expansion coefficients, excess thermal expansions, partial molar volumes at infinite dilution and deviations in viscosity were calculated. The results w...

NaCl­KCl­TiClx was prepared via using titanium sponge to reduce titanium tetrachloride in a NaCl­KCl melt under a negative pressure at 1023K. The relationship between titanium valence states and [F]/[Ti] molar ratios was investigated with successive adding potassium fluoride in the pre-prepared NaCl­KCl­TiClx. It was found that the average valence of titanium ions tended to be stable around 3.0...

Supernumerary teeth are the teeth present in addition to the normal set of teeth. They may be single, multiple, unilateral or bilateral, erupted or unerupted and in one or both jaws. Multiple supernumerary teeth are rare in individuals with no other associated diseases or syndromes. Our case presents with four supernumerary premolars, asymptomatic, of which one was erupted and three were unerup...

In order to survive as a carnivorous species it was imperative that Homo sapiens hunted efficiently. It is speculative, but distinctly possible, that not only the implements of hunting but also the psychological traits of the chase led to, or at least accentuated, the proclivity of our ancestors to kill and maim their fellows. Our modern fragile and turbulent societies must surely mirror the vi...

Since the 1990s the European Union’s biofuels policy has espoused several aims: energy security, greenhouse gas (GHG) savings, technology export and rural development. On these various grounds, by 2007 the EU was moving towards statutory targets, i.e. to mandate larger markets for ‘renewable energy’ including biofuels. However, controversy erupted over harmful environmental and social effects, ...