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Search Results: 1 - 10 of 1974 matches for " Aldo Ianni "
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Nuclear physics for geo-neutrino studies
Gianni Fiorentini,Aldo Ianni,George Korga,Marcello Lissia,Fabio Mantovani,Lino Miramonti,Lothar Oberauer,Michel Obolensky,Oleg Smirnov,Yury Suvorov
Physics , 2009, DOI: 10.1103/PhysRevC.81.034602
Abstract: Geo-neutrino studies are based on theoretical estimates of geo-neutrino spectra. We propose a method for a direct measurement of the energy distribution of antineutrinos from decays of long-lived radioactive isotopes. We present preliminary results for the geo-neutrinos from Bi-214 decay, a process which accounts for about one half of the total geo-neutrino signal. The feeding probability of the lowest state of Bi-214 - the most important for geo-neutrino signal - is found to be p_0 = 0.177 \pm 0.004 (stat) ^{+0.003}_{-0.001} (sys), under the hypothesis of Universal Neutrino Spectrum Shape (UNSS). This value is consistent with the (indirect) estimate of the Table of Isotopes (ToI). We show that achievable larger statistics and reduction of systematics should allow to test possible distortions of the neutrino spectrum from that predicted using the UNSS hypothesis. Implications on the geo-neutrino signal are discussed.
Dialética das rela??es raciais
Ianni, Octavio;
Estudos Avan?ados , 2004, DOI: 10.1590/S0103-40142004000100003
Abstract: racial relationships are rooted in the social life of individuals, groups and social classes. social inequalities often manifest themselves in stereotypes and intolerance, polarized around ethnicities and other social diversities such as gender, religion etc. in brief, the dynamics of diversity and inequality continuously and reiteratively "manufactures" intolerance and bigotry.
Globaliza??o: novo paradigma das ciências sociais
Ianni, Octavio;
Estudos Avan?ados , 1994, DOI: 10.1590/S0103-40141994000200009
Abstract: social sciences are now being challenged to think on the world's globalization. at the end of the twentieth century and dawn of the twenty first, they are faced with the dilemas that open up with the globalization of things, people and ideas: there are social, economical, political, cultural and other processes and structures that are just begining to be studied. besides what is local, national and regional, new and fundamental problems appear with the rising global society. the geographic, historical, cultural and civilizatorian limits seem to change in surprising ways and directions. the individual, group, class, colectivity and people are put before other horizons. the scientific thinking itself is called upon to elaborate concepts and interpretations to account for little known realities. the globalization theories that are just being sketched show the efforts of social sciences to explain what is new going on in the world.
Insondável travessia (Rocco e seus irm?os)
Ianni, Octavio;
Lua Nova: Revista de Cultura e Política , 1999, DOI: 10.1590/S0102-64451999000300013
Abstract: the themes of migration, of memory and of destiny are evoked in this essay inspired by visconti's film.
Tipos e mitos do pensamento brasileiro
Ianni, Octavio;
Revista Brasileira de Ciências Sociais , 2002, DOI: 10.1590/S0102-69092002000200001
Abstract: its is quite frequent in the brazilian thought the "ideal types" elaborated by different authors and that have become emblematic, notorious or even definitive, sometimes representing myths. that is the case of the bandeirantes (a colonial crusaders), the gaúcho, jeca tatu, macunaíma, the cordial man and others. it is worth contemplating this aspect of brazilian culture and thought.
AS CIêNCIAS SOCIAIS NA éPOCA DA GLOBALIZA??O
Ianni, Octavio;
Revista Brasileira de Ciências Sociais , 1998, DOI: 10.1590/S0102-69091998000200002
Abstract: since the beginning of researches and debates about globalization, considered as a historical and social process of wide proportions, more or less inclusive interpretations have been stated. besides the opposition between micro and macro theories, metatheories have also emerged, polarizing in two main directions: systemic and historical. both of them have not only been remaking the world's new map, but have also been recreating the map of social sciences.
Varia??es sobre arte e ciência
Ianni, Octavio;
Tempo Social , 2004, DOI: 10.1590/S0103-20702004000100001
Abstract: the text establishes connections between science and art through the contrasts and similarities traceables in those discourses of knowledge, while languages and peculiar narratives endowed with its own traits, but that quite often appeal to alien proce-dures and resources. it seeks to point out the uses of fiction resources in scientific texts, as the opposite, the cognitives assets and even the complex reconstruction of social experiences found out literary texts, moved by an aesthetic ambition.
Tendências do pensamento brasileiro
Ianni, Octavio;
Tempo Social , 2000, DOI: 10.1590/S0103-20702000000200006
Abstract: all along brazilian history, brazilian and foreign interpreters have questioned national society, building and rebuilding historical and theoretical issues. in spite of the diversity of the analyses, it is possible to rank them according to their points of view, their intellectual or family lineage, thus profiling themes and future perspectives that are recurrent in the history of the interpretations of culture, society, economy and politics in brazil. finally, from a wide point of view, the diversified group of interpretations can be seen as a complex fictional narrative that combines the search for clarity and the construction of meanings.
Uma longa viagem
Ianni, Octavio;
Tempo Social , 2004, DOI: 10.1590/S0103-20702004000100009
Abstract: the text undertakes a moving historical appraisal of the dramatic experiences faced by a family of migrants (the parondi family) through their move from the rural south of italy to the industrial metropolis of milan, pointing out the expressive conflicting lives of the characters the mother, the five male siblings, their women -, just as performed in the classic feature film by neo-realist italian director luchino visconti, rocco and his brothers ("rocco i suoi fratelli"), of 1960.
Las ciencias sociales y la sociedad global
Octavio Ianni
Perfiles educativos , 1996,
Abstract: La realidad social, la historia de las sociedades, de las naciones y de los continentes plantean, a finales del siglo XX, nuevos retos a las ciencias sociales, problemas que parecen rebasar la capacidad de interpretación de los conceptos conocidos. Estos implican no sólamente alteraciones relacionadas con el objeto de las ciencias sociales, sino también la reflexión en niveles ontológico y epistemológico, el desarrollo de nuevos lenguajes. Para Octavio Ianni, la conformación de la sociedad global abre nuevamente el problema de las articulaciones entre razón e historia, por lo tanto, nuevas posibilidades de realización.
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