During coronary angioplasty, a stair-step decrease in peak S-T segment elevation from the first to the second coronary occlusion has been assumed to indicate a preconditioning (PC) effect. This association was evaluated with myocardial electrograms in rabbits, which revealed that two sequential 5-min coronary occlusions resulted in a marked decrease in the area under the S-T segment voltage-tim...

We can imagine no career more lofty or honourable than that of a well-informed, capable and courageous medical missionary. A few hundred of such men in the next half century would powerfully affect the history of China, India and Africa. between the years 1883 and 1908. 1883 marks the beginning of medical work in Tangier and over the next twenty-five years this was the only hospital with one qu...

El objetivo de este artículo es estudiar las características del brote sarampión 1883 en la ciudad Segovia, atendiendo a su mortalidad, recorrido temporal enfermedad, distribución población, edades los fallecidos, género y medidas implementadas para control. Para ello, basándonos partidas defunción juzgado municipal Segovia 1883, libro acuerdos Ayuntamiento, Boletín Oficial provincia, expedient...

AIM To determine the prevalence and causes of visual impairment and blindness among indigenous Australians living in central Australia. METHODS 1884 individuals aged 20 years or older, living in one of 30 remote communities within the statistical local area of "Central Australia", were recruited for this study, from which 1883 were assessable. This equated to 36% of those > or =20 years old a...

The diversity, ubiquity and prevalence in deep waters of the octocoral family Chrysogorgiidae Verrill, 1883 make it noteworthy as a model system to study radiation and diversification in the deep sea. Here we provide the first comprehensive phylogenetic analysis of the Chrysogorgiidae, and compare phylogeny and depth distribution. Phylogenetic relationships among 10 of 14 currently-described Ch...