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INTRODUCTION There are multiple Helicobacter pylori (Hp) detection tests, some are invasive and other noninvasive. The diagnostic accuracy of these methods varies according to the prevalence of the disease. OBJECTIVE To determine the diagnostic accuracy of the breath test, serology and rapid urease test, considering gastric biopsy with Giemsa stain as the(More)
The advanced oxidation of paracetamol (PAM) promoted by TiO(2)/UV system in aqueous medium was investigated. Monitoring this reaction by HPLC and TOC, it was demonstrated that while oxidation of paracetamol is quite efficient under these conditions, its mineralization is not complete. HPLC indicated the formation of hydroquinone, benzoquinone, p-aminophenol(More)
2,4-Dichlorophenol (2,4-DCP) is considered a priority pollutant due to its high toxicity. Therefore, it is urgent to develop technologies for the disposal of this pollutant. Various remediation processes have been proposed for the elimination of 2,4-DCP in contaminated water, however, most of them involve high costs of operation and maintenance. This study(More)
It has been suggested that among American Indians, as in some genetically-related Asiatic ethnic groups, incidence of cleft lip and/or cleft palate is higher than among people of Caucasian extraction. Such hypothesis, plus growing demand for services observed at a center for the surgery of cleft lip and cleft palate in Campeche state, led the authors to(More)
Pyrostegia venusta (Ker Gawl.) Miers is used in traditional medicine for the treatment of vitiligo, dysentery, immoderate menstrual flow, common diseases of the respiratory system, and for the treatment of genital infections. This work describes the effect of different explants, media components, and antioxidants on callus development from P. venusta. The(More)
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