A water soluble, Bronsted acid, 5-sulfosalicylic acid as an efficient organocatalyst was used for the synthesis of physiologically active 2-substituted benzimidazole derivatives from o-phenylenediamine and aromatic aldehydes in ethanol at reflux condition. Cost-effectiveness, use of non-hazardous solvents, metal free and commercially available catalyst, single-step, environmentally fri...

BACKGROUND The incidence of zoonotic canine visceral leishmaniasis (CVL) would decrease if dogs were effectively vaccinated; however, additional data on the efficacy of canine vaccines are required for their approved preventative use. PURPOSE To prospectively evaluate vaccination outcomes using two products commercially available in Brazil, with respect to adverse reactions (reactogenicity), ...

Tiroid hastalıkları, gebelik esnasında kompleks hormonal değişiklikler nedeniyle yaygın olarak görülür. Fetal hidrops, düşük doğum ağırlığı, fetal distress ve nörofizyolojik gelişme geriliği açısından risklidir. 20 yaşında primigravid gebe hipotiroidizmle başvurdu ve bu esnada propiltiourasil (PTU) 3x1 kullanmaktaydı. Yapılan ultrasonografi (USG)’de hidrops fetalis görüldü ve bunun üzerine PTU ...

Mientras que los anillos incompletos asintomáticos pueden mantenerse bajo vigilancia9,10. La asociación de RTS y anillo vascular completo es poco frecuente. Es importante que ante la sospecha de anomalías cromosómicas los pacientes sean valorados por el cardiólogo pediatra para su diagnóstico. Las técnicas de imagen no invasivas son de ayuda para la delimitación de la anatomía precisa y la plan...

The ionosphere is still considered one of the most significant error sources in precise Global Navigation Satellite Systems (GNSS) positioning. On the other hand, new satellite signals and data processing methods allow for a continuous increase in the accuracy of the available ionosphere models derived from GNSS observables. Therefore, many research groups around the world are conducting resear...

this paper presents novel active filter for mitigation electromagnetic interference (emi) and other adverse effects of pulse width modulation (pwm) inverter-fed ac motor system. an active filter proposed and devised for this system is characterized by sophisticated connection of two small separate filters, capable of mitigating all the adverse effects. this paper provides high frequency models ...

based on the importance of drops' behavior in liquid-liquid extraction, the maximum sauter mean drop diameter has been investigated and correlated in a counter-current spray extraction column with two chemical systems. spargers were set of nozzles in all experiments. studying the effects of several parameters on drops size, some correlations were estimated by the last available version of softw...

The paper describes a proposal a new platform whose main objective is to assist in preparing of the author’s guide and the development of educational software. This platform has support the X-TEC (TechnoDidactical Extension for Instruction/Learning based on the Computer) model. It's composed for two parts: a graphical tool and a code generation tool. The graphical tool makes possible the editio...