La lixiviación ácida es una alternativa de procesamiento para mejorar la recuperación oro desde menas auríferas conformadas por pirita y arsenopirita, denominados minerales refractarios. El contenido en este tipo mena escasamente soluble procesos convencionales, el mineral investigado relave un proceso cianuración directa, tiene ley 0.14 Oz/TC; caracterización mineralógica realizada a mineral, ...

Ebola viruses (EBOV) cause often fatal hemorrhagic fever in several species of simian primates including human. While fruit bats are considered natural reservoir, involvement of other species in EBOV transmission is unclear. In 2009, Reston-EBOV was the first EBOV detected in swine with indicated transmission to humans. In-contact transmission of Zaire-EBOV (ZEBOV) between pigs was demonstrated...

Herpetic gingivostomatitis represents the most commonly observed clinical manifestation of primary herpes simplex virus (HSV) infection. HSV-1 has been associated with oro-labial disease, with most infections occurring during childhood, and HSV-2 with genital disease. However, it is possible for HSV-2 to cause oro-labial herpes and HSV-1 to cause genital herpes. An unusual case of acute herpeti...

Oro-antral communication and fistula can occur as a result of inadequate and improper treatment. Inadvertent communication with the maxillary sinus can occur during certain surgical procedures in the maxillary posterior region. Though, spontaneous healing may occur in defects which are smaller than 2 mm but larger communications require immediate attention and should be treated without delay, i...

Le syndrome de Melkersson-Rosenthal est une entité clinique rare, définie par la triade oedème oro-facial, paralysie faciale récurrente et langue plicaturée. Cette triade peut être incomplète ou apparaître de manière différée dans le temps. Le diagnostic est confirmé par l'histologie. Il s'agit d'une entité complexe dont la prise en charge est difficile en raison de son polymorphisme clinique e...

OBJECTIVE To study the prevalence of vulvovaginal candida among sexually active adolescents. To determine past and present symptoms, including pain at intercourse and potential behavioural risk factors associated with vulvovaginal candidiasis. METHODS At an adolescent centre, 219 sexually active women who underwent genital examination, also completed a questionnaire on a history of genital sy...

The tumour microenvironment has an important role in cancer progression and recent reports have proposed that stromal AKT is activated and regulates tumourigenesis and invasion. We have shown, by immuno-fluorescent analysis of oro-pharyngeal cancer biopsies, an increase in AKT activity in tumour associated stromal fibroblasts compared to normal stromal fibroblasts. Using organotypic raft co-cul...