Andreia Carvalho

This article presents an overview ofregulations, guidelines and societal debates ineight member states of the EC about a)embryonic and fetal tissue transplantation(EFTT), and b) the use of human embryonic stemcells (hES cells) for research into celltherapy, including `therapeutic' cloning. Thereappears to be a broad acceptance of EFTT inthese countries. In most countries guidance hasbeen developed. There is a `strong' consensusabout some of the central conditions for `goodclinical practice' regarding EFTT.International differences concern, amongstothers, some of the informed consent issuesinvolved, and the questions whether anintermediary organisation is necessary, whetherthe methods of abortion may be influenced bythe possible use of EFT, and whether EFTTshould only be used for the experimentaltreatment of rare disorders. The potential useof hES cells for research into cell therapy hasgiven a new impetus to the debate about (human)embryo research. The therapeutic prospects withregard to the retrieval and research use of hEScells appear to function as a catalyst for theintroduction of less restrictive regulationsconcerning research with spare embryos, atleast in some European countries. It remains tobe seen whether the prospect of treatingpatients suffering from serious disorders withtransplants produced by therapeutic cloningwill decrease the societal and moral resistanceto allowing the generation of embryos for`instrumental' use

Forty lambs with 90 ± 5 days of age; 24 ± 3 kg initial BW; were confined in a feedlotfor 60 days and assigned two different diets, without or with soy lecithin. The animals were slaughtered, and the carcasses were kept in a cold chamber for 24 h, at 2ºC, and were measured for carcass yield, chemical composition of the meat, lipid oxidation and fatty acid profile. The experimental design was completely randomized, data were analyzed using SAS, and compared with the means by the Student Test at 5% probabilities. The use of soy lecithin improve daily weight gain (kg/d, P < 0.05) and reduced hot and cold carcass yield (P > 0.05), but it did not alter other carcass characteristics with pH, temperature, loin area, subcutaneous fat thickness. The moisture, protein, ethereal extract and mineral of meat has not been altered by the soy lecithin (P>0.05). The results was same for lipid oxidation (P > 0.05). In the fatty acid profile, only C17:1c9 and C18:2t acids were altered (P < 0.05). The study indicates that soy lecithin can be used safely in animal feed as it does not negatively affect the quality of the meat and carcass of the animal, ensuring the production of food safety for the consumer.

This brief presentation, guided by the thought of archi-writing of Jacques Derrida, has the double purpose of, on the one hand, showing how the Greco-Western philosophical tradition is based on the irreducible privilege of a supposed living word – logo-phono-centrism – and, on the other hand, showing how the thought of archi-writing deconstructs this privilege, pointing out that every mark, spoken or written, occurs already in a scene that makes it, in advance, a response. With this in mind, it becomes essential, in a first moment, to elucidate the concept of logo-phono-centrism, assuming it as the fundament of the privilege of the living word and consequent secondarization of the writing, under its traditional conceptual-ization. In a second moment, deconstructing the logo-phono-centric orien-tation enunciated before, the way in which the thought of archi-writing is highlighted, leading to the impossibility of any originary fullness of sense reveals a singular notion of response that shows a deconstruction already operating in every mark, written or spoken.