1,720,998 research outputs found
La canzone impegnata tunisina: storia, ideologia e poetica di una controcultura (anni 1970 – anni 1980)
Full text linkLa canzone impegnata (in arabo al-ughniya al-multazima) emerge in Tunisia tra gli anni 1970 e 1980 quale espressione controculturale dell'opposizione politica al regime di Habib Bourguiba. Nel presente studio, la canzone impegnata funge da prospettiva dalla quale guardare alla storia politica, ideologica e culturale della Tunisia; una prospettiva che merita di essere indagata per diversi motivi. In primo luogo, perché essa ha registrato e celebrato eventi significativi, ma dalla parte dei vinti, raccontando una storia minore all'interno della storia del paese. Essa ha lasciato così emergere le linee ideologiche e le aspirazioni su cui si costruiva l'opposizione politica al regime di Habib Bourguiba. In secondo luogo, perché le modalità e gli spazi di creazione, produzione e circolazione delle canzoni, di organizzazione dei concerti, di interazione e scambio con il pubblico, possono fare luce su una serie di pratiche resistenziali di una generazione militante, e al tempo stesso possono dirci qualcosa sulla dialettica tra autoritarismo e controcultura in quel periodo storico. Infine, perché essa offre una sorta di retrospettiva della cultura rivoluzionaria o di protesta più recente, e potrebbe potenzialmente contribuire a comprendere i mutamenti profondi negli orizzonti di vita e di idee di diverse generazioni contestatarie. La ricerca si avvale di un approccio interdisciplinare, che combina lo studio della storia politica e culturale della Tunisia contemporanea agli strumenti teorici degli studi culturali, ad alcuni dei metodi tipici della ricerca etnografica, e all'analisi letteraria del testo-canzone
Acetylene as a ligand on clusters: An accurate determination of the crystal and molecular structure of (Cp)2Ni2Fe(CO)3(μ3-C2H2) and of (CP)2Ni2Fe2(CO)6(μ4-C2H2)
No full textThe Cp)2Ni2Fe(CO)3(μ3-C2H2) and Cp)2Ni2Fe(CO)3(μ3-C2H2) (B) complexes have been synthesized and spectroscopically characterized. An accurate X-ray study and a comparison with related structures shows that the substituents of the alkyne ligands exert considerable effects on the bonding parameters. Crystal data for complex A, monoclinic space group P21/n, a = 8.418(1), b = 15.779(2), c = 14,493(1) Å, β = 91.64(1)°, Z = 4, 2753 observed reflections, R = 0.022; crystal data for complex B, monoclinic space group C2/c, a = 16.2189(7), b = 7.445(3), c = 25.745(5) Å, β = 103.74(3), Z=8, 1853 observed reflections, R = 0.051. © 1994 Plenum Publishing Corporation
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Oligomerisation of isopropenylacetylene in the presence of Fe3(CO)12. Crystal and molecular structure of the open cluster isomers Fe3(CO)10[H2CC(CH3)CC(H)C(H)C(CO)C(CH3)CH2], Fe3(CO)10[HCC(CH3)C(H)C(H)C(H)C(CO)C(CH3)CH2] and of the binuclear complex Fe2(CO)5[C15H18(CO)]
No full textMetal fragment condensation and carbon-carbon bond cleavage in the reactions of Fe3(CO)12 with RC2C(H)(OH)R’ propargyl alcohols. X-ray structures of the bowtie acetylide complexes Fe5(CO)14(C2R’)2 (R=Me,Et)
No full textHomogeneous hydrogenation of diphenylacetylene in the presence of Ru3(CO)9L3 (L=PPh3,PEt3).The crystal structure of Ru3(CO)10(PEt3)2: a reaction intermediate?
No full textAppropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Informal Power in the Greater Middle East: Hidden Geographies
No full textOver the last decade or so, academic and non-academic observers have focussed mainly, if not exclusively on the institutions and places of formal power in the Greater Middle East, depicting politics in the region as a small area limited to local authoritarian rulers.In contrast, this book aims to explore the ‘hidden geographies’ of power, i.e. the political dynamics developing inside, in parallel to, and beyond institutional forums; arguing that these hidden geographies play a crucial role, both in support of and in opposition to official power. By observing less frequented spaces of power, co-option, and negotiation, and particularly by focusing on the interplay between formal and informal power, this interdisciplinary collection provides new insights in the study of the intersection between policy-making and practical political dynamics in the Greater Middle East.Contributing a fresh perspective to a much-discussed topic, Informal Power in the Greater Middle East will be an invaluable resource for students, scholars and those interested in the politics of the region
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