El galenismo crítico de girolamo cardano: análisis de la presencia de galeno en el "de inmortalitate animorum"

En este artículo el autor ofrece una interpretación de la presencia de Galeno en la obra del humanista y médico italiano Girolamo Cardano (1501-1576) a través de una análisis de su libro De immortalitate animorum (1545), en donde Galeno juega un doble papel, por un lado como objeto de un examen crítico, y por otro lado, como un muy influyente modelo teórico y literario.In this paper, the author offers an interpretation of Galen’s presence in the work of the Italian humanist and physician Girolamo Cardano (1501-1576) through an analysis of his book De immortalitate animorum (1545), where Galen plays a double role, on one hand, as object of a critical review, and, on the other, as a very influential theoretical and literary model

Alejandro de Afrodisias, Acerca del intelecto.

This paper offers a Spanish translation of Alexander of Aphrodisias’ On intellect. Also one can find a short introduction to the text.En este artículo se ofrece una traducción anotada del De intellectu del filósofo aristotélico Alejandro de Afrodisias (fl. aprox. 200 d.c.). También se incluye una breve introducción

Liber de mente agente (De Rebus Naturalibus, Liber XXVIII). Giacomo Zabarella

Este artículo contiene la primera edición moderna del De mente agente del filósofo aristotélico Giacomo Zabarella.This paper contains the first modern edition of the De mente agente of Giacomo Zabarella

HCO3- enrichment causes cytosolic NO3- efflux in Posidonia oceanica leaf cells

Posidonia oceanica is a seagrass, the only group of vascular plants to colonize the marine environment. Seawater is an extreme yet stable environment, characterized by high salinity, alkaline pH and low availability of essential nutrients, such as nitrate or phosphate. In addition, in aquatic environments the supply of CO2 for the photosynthesis is limited by diffusion and therefore many aquatic plants use HCO3- as the inorganic carbon source for photosynthesis. Previous results have shown that Na+ -dependent transport systems operate on the plasma membrane of P. oceanica mesophyll leaf cells for the high-affinity NO3-, Pi or amino acids uptake. Also, a direct transport of HCO3- driven by H+ has been found in this species that provides inorganic carbon for photosynthesis and could be a significant component of a carbon concentrating mechanism in this species. Interestingly, this HCO3- direct uptake caused the efflux of chloride from the cytosol, probably through S-type anion channels, pointing that other anions could also be removed from the cytosol. This hypothesis could be relevant in the case of NO3-, since the decrease of cytosolic NO3- in response to HCO3- enrichment could limit N-assimilation. Here we analyse the effect of HCO3- increase on NO3- uptake and cytosolic homeostasis in P. oceanica. Enrichment of natural seawater with 3 mM HCO3- evokes the on-going decrease of cytosolic NO3-, from 5.7 ± 0.2 to 4.8 ± 0.7 mM after 40 min of treatment. The incubation of P. oceanica leaf pieces in 3 mM HCO3- NSW causes an initial increase of NO3- concentration in the medium. Maximum efflux (21 nmol NO3- gFM-1 min-1) occurs within the first minute of incubation. Then, external NO3- is depleted from the medium at lower net uptake rate than the value observed in non HCO3- -enriched natural seawater. These results fit the hypothesis that HCO3- enrichment causes the nitrogen loose and could impair nitrogen assimilation promoting N biomass impoverishment.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech. Spanish MINECO, projects BFU2017-85117-R and BIO2016-81957-RED

El intelecto agente en Pietro Pomponazzi: un análisis de su presencia en el Tractatus de immortalitate animae y en la Apologia

El noûs poie-tikós de Aristóteles ha sido objeto de innumerables estudios y debates a lo largo de la historia de la filosofía. Este artículo trata sobre la visión que de él tiene el aristotélico renacentista P. Pomponazzi, célebre, entre otras cosas, por suscitar una agria polémica con su tesis de que la razón natural no ofrece argumentos que puedan sostener la inmortalidad del alma. Esta tesis tiene que dar respuesta, sin embargo, a aquellos textos aristotélicos que hablan de la inmaterialidad e inmortalidad del intelecto. El autor estudia esta respuesta de Pomponazzi en el contexto de los elementos más importantes de su psicología.The noûs poie-tikós of Aristotle has been the subject of countless studies and debates throughout the history of philosophy. This paper deals with the treatment of Pietro Pomponazzi, an Aristotelian philosopher who is famous for the bitter controversy caused by his claim that natural reason cannot offer arguments in favour of the immortality of the soul. Pomponazzi has to respond to Aristotelian texts that attribute immateriality and immortality to the intellect. The author analyses the way in which Pomponazzi interprets these texts in the Tractatus de immortalitate animae and the Apologia and links this interpretation to the most characteristic elements of his psychology