Importance The test-negative design (TND) has been widely used to assess postmarketing
COVID-19 vaccine effectiveness but requires further evaluation for this application. Objective …

Three low-cost and abundant agro-industrial residues have been used as hexavalent
chromium adsorbents. Blackberry residues and spent ground coffee were the most efficient …

New ornithischian remains reported here (MPEF-PV 3826) include two complete metatarsi
with associated phalanges and caudal vertebrae, from the late Toarcian levels of the …

The recently described Manidens condorensis is one of the most completely known taxa of
the family Heterodontosauridae from the southern landmasses. However, some dental …

New materials of the ornithischian dinosaur Manidens condorensis highlight a strong
heterodonty between the upper and lower dentitions and reveal a novel occlusion type …

Dental replacement in Heterodontosauridae has been debated over the last five decades
primarily on indirect evidence, such as the development of wear facets and the position of …

Heterodontosauridae is a clade that appears early in the ornithischian fossil record, and
includes small-bodied, highly specialized species characterized by an unusual heterodont …

This communication aims to describe an isolated sauropodomorph tooth (MPEF-PV 10860)
from the Cañadón Asfalto Formation and test its phylogenetic relationships with other …

The endocranial morphology of Secernosaurus koerneri (= Kritosaurus australis junior
synonym), a hadrosaurid from the Upper Cretaceous of Argentina, was studied using latex …

Introducción. Clostridium difficile es un bacilo Gram positivo, anaerobio estricto y formador
de esporas, capaz de persistir bajo condiciones adversas durante mucho tiempo. Es una de …