Malattia da virus Ebola, diagnostica, prevenzione.

La malattia da virus Ebola (acronimo inglese EVD), precedentemente conosciuta come febbre emorragica Ebola (acronimo inglese EHF) è una malattia degli esseri umani e di altri primati causata dal virus Ebola. I sintomi della malattia iniziano da due giorni a tre settimane dopo aver contratto il virus, con febbre, faringodinia, dolori muscolari e cefalea. A questi primi sintomi fanno in genere seguito nausea, vomito, e diarrea, unitamente a segni di alterazione della funzionalità epatica e renale. In questa fase della malattia, alcune persone possono cominciare a presentare emorragie che si possono manifestare verso l'esterno (emorragie esterne) oppure interessare alcune cavità corporee (emorragie interne). Il rischio di morte tra le persone infette è estremamente alto. Ebola virus disease (EVD; also Ebola hemorrhagic fever, or EHF), or simply Ebola, is a viral hemorrhagic fever of humans and other primates caused by ebolaviruses. Signs and symptoms typically start between two days and three weeks after contracting the virus with a fever, sore throat, muscular pain, and headaches. Then, vomiting, diarrhea and rash usually follow, along with decreased function of the liver and kidneys. At this time some people begin to bleed both internally and externally. The disease has a high risk of death, killing between 25 and 90 percent of those infected, with an average of about 50 percent.This is often due to low blood pressure from fluid loss, and typically follows six to sixteen days after symptoms appear

Semiotics of Arts: A Historical Survey

Der Aufsatz identifiziert das Gründungsmoment der italienischen Bildsemiotik in Omar Calabreses Buch La macchina della pittura. Pratiche teoriche della rappresentazione figurativa tra Rinascimento e Barocco [Das System der Malerei. Theoretische Praktiken der figurativen Darstellung zwischen Renaissance und Barock], veröffentlicht im Jahr 1985. Das Buch bildet einen Schnittpunkt zwischen der, auf das Visuelle angewandten, semiotischen Methodologie und den Studien auf dem Gebiet der französischen Kunsttheorie. In dieser Arbeit werden die konzeptionellen und thematischen Achsen des Buches zusammen mit den jüngsten Entwicklungen der italienischen Kunstsemiotik untersucht. Zu den theoretischen Eckpfeilern der Disziplin gehören Greimas’ Essay Figurative Semiotics and the Semiotics of the Plastic Arts [Figurative Semiotik und die Semiotik der plastischen Künste], das Konzept der Kunst als ‚theoretisches Objekt‘, das Konzept der visuellen Äußerung und die zentrale Rolle der Leidenschaft in den Bildern.The essay identifies the founding moment of Italian semiotics of the image in Omar Calabrese’s book La macchina della pittura. Pratiche teoriche della rappresentazione figurativa tra Rinascimento e Barocco [The Painting System. Theoretical Practices of Figurative Representation between Renaissance and Baroque], published in 1985 (Calabrese 1985a). The book is a meeting point between semiotic methodology applied to the visual and studies in the field of French art theory. In our work, the conceptual and thematic axes focused on by the book are explored alongside the most recent developments in the Italian semiotics of art. The theoretical cornerstones underpinning the discipline include Greimas’s essay Figurative Semiotics and the Semiotics of the Plastic Arts (1984), the concept of art as a “theoretical object”, the concept of visual enunciation and the centrality of the passions in images