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El propósito de este trabajo es simple: traducir algunos de los prólogos que Santo Tomás de Aquino puso al comienzo de sus comentarios a determinadas epístolas de San Pablo que tienen que ver con la autoridad y/o pot...

Phosphoenolpyruvate carboxykinase (PEPCK) catalyses the reversible reaction of decarboxylation and phosphorylation of oxaloacetate (OAA) to generate phosphoenolpyruvate (PEP) and CO2 playing mainly a gluconeogenic role i...

Dados de 36.755 primeiras lactações de vacas holandesas, filhas de 866 reprodutores, distribuídas em diferentes estados no período de 1980 a 1993, foram estratificados em rebanhos de acordo com o desvio-padrão fenot...

The fossils of the India Muerta Formation (Neogene, Tucumán Province, Northwestern Argentina) include several vertebrate groups, mainly metatherian, xenarthran, and notoungulate mammals. Nevertheless, these remains have...

Trypanosoma cruzi, the etiological agent of Chagas disease, has a digenetic life cycle. In itspassage from the insect vector to the mammalian host, and vice versa, it must be preparedto cope with abrupt changes in enviro...

Four members of the potato (Solanum tuberosum L.) calcium-dependent protein kinase (CDPK) family StCDPK22/23/24 and StCDPK27, present three functional EF-hands motifs in their calmodulin-like domain (CLD). StCDPK22/23/24...

Roberto Vera-Uribe,1 Rodrigo Torres-Castro,1 Matías Otto-Yáñez2 1Department of Physical Therapy, University of Chile, Santiago, Chile; 2Health, Functionality, and Physical Activity Resear...

El control de la transmisión materno-fetal de Trypanosoma cruzi, agente causal de la enfermedad de Chagas Vertical (EChV), es una prioridad de salud pública. La infección por T. cruzi puede identificarse al nacer y ti...

Background: Mutations in the glucocerebrosidase (GBA) gene represent the most common genetic risk factor for Parkinson's Disease (PD) and are associated with a more aggressive motor phenotype at late stages. However, the...

St. Louis encephalitis virus (SLEV) is endemic in the Americas and its transmission networks involve Culex mosquitoes and avian species. In 2015, a human encephalitis outbreak took place in Arizona and California, indica...

We describe the functional properties of a nicotinic alpha9/serotonin subtype 3A (5HT3A) chimeric receptor expressed in Xenopus laevis oocytes. The chimera preserved ligand-binding properties of alpha9 and channel proper...

The organ of Corti, the auditory mammalian sensory epithelium, contains two types of mechanotransducer cells, inner and outer hair cells (IHCs and OHCs, respectively). IHCs are involved in conveying acoustic stimuli to t...

Electromagnetic driving in a honeycomb lattice can induce gaps and topological edge states with a structure of increasing complexity as the frequency of the driving lowers. While the high frequency case is the most simpl...

Intracellular levels of cyclic nucleotide second messengers are regulated predominantly by a large superfamily of phosphodiesterases (PDEs). Most of the different PDE variants play specific physiological functions; in fa...

Plant irritability for light stimuli becomes crucial to cope with ambient fluctuations in order to keep up homeostasis and accomplish the life cyclesuccessfully. Light environment governs plant development. Perception of...

El Túmulo de Malacara fue localizado en 1913 por Luis María Torres y Carlos Ameghino en la costa atlántica bonaerense. En este artículo se reestudia la colección bioantropológica y arqueológica de este sitio emble...

The hair cells of the vertebrate inner ear posses an active mechanical process to amplify their inputs. The stereocilia bundle of various vertebrate animals can produce active movements. Though standard stereocilia-based...

Seedsnipes (family Thinocoridae, genera Attagis and Thinocorus with two species each) are strictly vegetarian shorebirds occurring in some of the coldest and driest habitats of southern South America. It has been hypothe...

In order to clarify the physiological role of ghrelin in gestation, we evaluated the effects of administration of exogenous ghrelin (2 or 4 nmol/animal per day) or its antagonist (6 nmol/animal per day of (D-Lys3)GHRP6) ...

Background: The bacterial chromosome may be used to stably maintain foreign DNA in the mega-base range. Integration into the chromosome circumvents issues such as plasmid replication, stability, incompatibility, and copy...

In this work TiO2 modified with nitrogen was synthesized by sol-gel method from the hydrolysis of titanium isopropoxide with urea solution in different concentrations so that the theoretical N/Ti molar ratio was equal to...

Xanthomonas axonopodis pv. citri (Xac) is the causative agent of citrus canker. This bacterium develops a characteristic biofilm on both biotic and abiotic surfaces. To evaluate the participation of the single flagellum ...

The clinical evolution of patients with chronic Chagas disease (CCD) is mainly associated with an excessive inflammation and a defective immunomodulatory profile caused by the interaction between T. cruzi and the host. R...

Antecedentes: Hasta un 60% de las pacientes sometidas a mastectomía por cáncer de mama presentan dolor postoperatorio grave. El protocolo Enhaced Recovery after Surgery (ERAS®) ha demostrado su utilidad para el contro...