Reduction of fossil fuels sources, increasing of pollution gases emission, and global warming effects increase the demand of renewable fuels. One of the main candidates of alternative fuels is biodiesel. Biodiesel limits greenhouse gas effects due to the closed CO2 cycle. Biodiesel has more biodegradability, lower combustion emissions such as CO, SOx, HC, PM and lower toxicity than petro diesel...

MARGARITE is a calcic dioctahedral mica that has been known since the mid nineteenth century but rarely found as a mineral of petrographic interest. The most widely developed occurrences are in regional metamorphic rocks of unusual composi t ion-bauxite carbonate sediments that have been metamorphosed to varying degrees (Onay, I949) and in contact metamorphism of similar rocks (Williams, 1888)....

The complex molecular assemblages were analysed in the soil gas phase after applying pine forest wastes (PFW) or sugarbeet vinasses (SBV) for soil-borne crop pests' management. For this purpose, solid-phase micro-extraction (SPME) and gas chromatography (GC) were used coupled with mass spectrometry (MS). The organic wastes were applied either to Calcic Entisol or Haplic Arenosol moistened at fi...

The International Mineralogical Association's approved amphibole nomenclature has been revised in order to simplify it, make it more consistent with divisions generally at 50%, define prefixes and modifiers more precisely and include new amphibole species discovered and named since 1978, when the previous scheme was approved. The same reference axes form the basis of the new scheme and most nam...

Introduction: Melt breccias generated by a bolide collision in the vicinity of Bahía Blanca, Buenos Aries Province, Argentina at the Miocene-Pliocene Boundary (5.28 ± 0.04Ma) contain sand-sized meteoritic clasts [2], reviewed in [1]. The clasts exhibit textures and mineral assemblages (Fig. 1) most similar to quenched volcanic angrites, especially Asuka 881371 and Sahara 99555. They contain aci...

To cite: Kopke Túlio M, Barreiro P, Bana e Costa T, et al. BMJ Case Rep Published online: [please include Day Month Year] doi:10.1136/bcr-2016215232 DESCRIPTION A 60-year-old woman with an anxiety disorder presented with diarrhoea, rectorrhagia, tenesmus and proctalgia, progressively worsening for the past 2 months, in association with significant weight loss (15% body weight). Physical examina...

Small-scale assimilation of limestone during the intrusion of an olivine basalt feeder dyke into an Eocene argillaceous, siliceous biomicrite in the Tokatoka area has resulted in the incorporation of large amounts of calcium into the parent magma. Initial effects of assimilation have caused partial resorption of the earlyformed igneous mineralogy and the precipitation of calcic, iron-rich clino...

OBJECTIVE The need and timing of perioperative heparin prophylaxis is matter of debate. The aim of our work is to review the incidence of venous thromboembolism (VTE) after radical retro pubic prostatectomy (RRP) in patients undergoing preoperative blood donation, compressive stockings, haemodilution, surgical prevention of lymphocoele and postoperative low molecular weight heparin therapy as p...