Search results for "SEM"
showing 10 items of 8949 documents
A Particular Focus on the Prevalence of α- and β-Thalassemia in Western Sicilian Population from Trapani Province in the COVID-19 Era
2023
Thalassemia is a Mendelian inherited blood disease caused by α- and β-globin gene mutations, known as one of the major health problems of Mediterranean populations. Here, we examined the distribution of α- and β-globin gene defects in the Trapani province population. A total of 2,401 individuals from Trapani province were enrolled from January 2007 to December 2021, and routine methodologies were used for detecting the α- and β-globin genic variants. Appropriate analysis was also performed. Eight mutations in the α globin gene showed the highest frequency in the sample studied; three of these genetic variants represented the 94% of the total α-th…
Latvijas Vēstures Institūta Žurnāls. 2020, Nr. 2 (112)
2020
Polisemia di nòmos e l'esordio di Hipp. de genitura
2016
Far from being, as has been said, “the bizarrest beginning of all the Hippocratic writings (...) deserving of therapy”, this paper aims to show that the opening words of the Hippocratic writing “On Generation” (νόμοϲ μὲν πάντα κρατύνει), in itself echoing a famous Pindaric motto, seem to be used first of all in order to evoke a cultural, intellectual and scientific world, in which the nòmos has become one of the most important keywords of the time. From this point of view, the Pindaric quotation seems to be played out on the wide semantic range of nòmos as well as on the ambiguous meaning of the verb κρατύνω, which in this embryological context denote specifically the consolidation and hard…
Émile Zola et la question juive avant l'affaire Dreyfus
2017
Emile Zola’s article entitled I accuse...! (1898), accusing the French government of anti-Semitism, has been considered since its publication as a decisive voice defending not only the rights of a particular Jew, but also, in a larger context, truth, morality and justice. However, the “Jewish question” was already important for Zola before writing this text, and some subjects concerning Jews and their social perception occur as well in the Rougon-Macquart cycle as in journalistic chronicles written by the author. The paper examines the ways in which the “Jewish question” appears in Zola’s various texts.
Roland Barthes. El sentido de la moda
2021
Roland Barthes devoted much of his intellectual interest to the phenomenon of fashion. Long before his famous Système de la Mode, he wrote numerous essays on the subject, mainly of a methodological nature, both to elaborate a coherent historiography of dress and to establish a semiology of dress itself, distinguishing –with Saussure– between costume (langue) and clothing (parole). Indeed, if dress is a heteroclite whole, like language for Saussure, the semiologist’s task is to reconstruct its functioning as a system of signs, not only in the dress described by the magazines (as he does in Système), but also in the dress actually worn. A set of essays, in short, of extreme importance for any…
Polish contemporary art to the anti-semitism of Poles and its political significance
2016
Abstract This article presents artistic creativity which worked through the problem of Polish anti-Semitism. Almost all discussed works, performances, films, projects appeared after 2000, when Jan Tomasz Gross published his book Neighbors, in which he described the massacre in the village of Jedwabne (1941) launching a public debate about the responsibility of Poles in the Holocaust of the Jews. In the text, I showed as art, which is conventionally called “post-Jedwabne” was part of this debate. Its political status on possibly general level was associated primarily with the revision of conventionalized historical memory and national identity formed on romantic patterns. The text shows that…
Stare i nowe, czyli multimedia w teatrze : "Dwanaście stacji" Tomasza Różyckiego w scenicznej adaptacji Mikołaja Grabowskiego
2015
A competitive reactivity study on the oxidative cyclization of thiosemicarbazones into 1,3,4-thiadiazoles
2022
Abstract In order to obtain useful insights on the mechanism of formation of 2(3H)-imino-1,3,4-thiadiazoles by oxidative cyclization of aldehyde thiosemicarbazones with Cu(II) or Fe(III) salts, a competitive reactivity study was performed on a suitable set of diversely substituted substrates, by means of HPLC techniques. This approach enabled to exploit Hammett’s equation without performing otherwise difficult-to-run kinetic experiments. The results presented herein support the hypothesis that the formation of the thiadiazole ring is induced by the attack of the oxidizing Lewis acid metal cation onto the imine-like nitrogen atom of the thiosemicarbazone substrate. Beyond mechanistic interpr…
Overview of Power Electronic Switches: A Summary of the Past, State-of-the-Art and Illumination of the Future.
2020
As the need for green and effective utilization of energy continues to grow, the advancements in the energy and power electronics industry are constantly driven by this need, as both industries are intertwined for obvious reasons. The developments in the power electronics industry has over the years hinged on the progress of the semiconductor device industry. The semiconductor device industry could be said to be on the edge of a turn into a new era, a paradigm shift from the conventional silicon devices to the wide band gap semiconductor technologies. While a lot of work is being done in research and manufacturing sectors, it is important to look back at the past, evaluate the current progr…
Séries temporelles et flou
1982
La compréhension de la nature du temps, et de son écoulement, est un problème qui a toujours préoccupé les hommes L'idée que l'on se fait du temps est elle-même discutable et discutée, et pas seulement par les philosophes. Tout agent, dans l'activité qu'il déploie est amené à se poser, même implicitement, cette question. En effet, le temps nous est compté. Toute action doit le prendre en considération. La valeur des produits humains en dépend. Il faut toujours ramener une production, voire même une consommation, au temps qu'il a fallu pour la réaliser. Nul n'y échappe, ni dans ses loisirs, ni dans son travail. Mais c'est dans ce dernier que les instruments de mesure qui introduisant le temp…