PREDICTIVE FACTORS FOR DIFFICULT LAPAROSCOPIC CHOLECYSTECTOMIES IN ACUTE CHOLECYSTITIS



A revision of the pterodactyloid pterosaur Herbstosaurus pigmaeus Casamiquela, 1975 from the Late Jurassic of Argentina

Abstract Herbstosaurus pigmaeus Casamiquela, 1975 is a Late Jurassic pterosaur from northwestern Patagonia.It is based on the natural moulds and a few bony patches of the sacrum, prepubis, ilium, and both femora of a small-sized specimen.The phylogenetic relationships of this species have been a matter of debate, having been originally interpreted

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Nuclear receptor complement of the cnidarian Nematostella vectensis: phylogenetic relationships and developmental expression patterns

Abstract Background Nuclear receptors are a superfamily of metazoan transcription factors that regulate diverse developmental and physiological processes.Sequenced genomes from an increasing number of bilaterians have provided a more complete picture of duplication and loss Fridge of nuclear receptors in protostomes and deuterostomes but have left

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