NOTAS SOBRE DICTYOTA PFAFFIIY D. HUMIFUSA (DICTYOTALES, PHAEOPHYTA)

The shading effects of Dictyota sp . algae ( Dictyotales , Phaeophyta ) on Acropora aspera coral on the Heron Island reef flat

A major threat to coral reefs today is the phase shift to algaldominated reefs. Algae can stress corals by overgrowing and smothering them, blocking sunlight needed for photosynthesis, and enhancing microbial growth. However, the mechanisms underlying algae-coral interactions are still poorly understood. This study examined how the tumbleweed algae Dictyota sp. affects the photophysiology of th...

Notas performativas sobre el delito verbal

oder del simulacro que no evoca el vacío presente sino la plenitud pasada; agotamiento de las creencias; identificación de la verdad con el desastre. He allí esbozados tres ejes del debate sobre el poder de la falsificación. El duelo entre Borges y Caillois es un capítulo de ese debate que ha sido objeto reciente de miradas críticas desencontradas. Jean-Pierre Bernès se inclinó por una minucios...

Los materiales digitales: notas sobre su conservación y depósito legal

extended_abstract - Bloco de notas

1. PROBLEM AND MOTIVATION In recent years, with the increasing use of technology, Artificial Intelligence has been gradually and successfully introduced into Education. However, major challenges remain. Among these, we are concerned how to represent the “knowledge” of intelligent authoring systems (IAS) and then how to use this knowledge efficiently, especially within the context of collaborati...

Heterofucans from Dictyota menstrualis have anticoagulant activity.

Fucan is a term used to denote a family of sulfated L-fucose-rich polysaccharides which are present in the extracellular matrix of brown seaweed and in the egg jelly coat of sea urchins. Plant fucans have several biological activities, including anticoagulant and antithrombotic, related to the structural and chemical composition of polysaccharides. We have extracted sulfated polysaccharides fro...