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The Egyptian 2011 revolution is presented in media - as well as statements made by organisations participating in the overthrowing of Hosni Mubarak's regime - as a social media revolution. Despite the fact that internet has been shut down on the government's order on 28th January, just after three days of street protests, therefore forcing the social media revolution to go offline. This paper describes the role of social media in the events of the beginning of the revolution. It focuses on the official Facebook communication of two prominent anti-Mubarak organisations - We Are All Khalid Said and April 6th Youth Movement - in the period between 1st January and 11th February, the day when Hosni Mubarak resigned. The result of my research is that Facebook was only one of possible tools of communication actively employed by both of the organisations. While We Are All Khalid Said used Facebook not only to spread information but also to coordinate demonstrations - as well as constantly promoting Facebook as the tool that ignited the revolution, the activist group wasn't able to breach the internet blockade, and after the renewal of internet connection, it started using its Facebook account mainly as an information platform - which was the role that Facebook played for April 6th Youth Movement throughout...

O presente trabalho propõe uma estratégia de tradução para Táxi baseada principalmente na abordagem cultural da tradução em busca de reproduzir o contraste entre árabe padrão e dialeto presente no original. Táxi, do egípcio Khalid al-Khamissi, traz pequenas histórias (addtas) que retratam conversas do autor/personagem com taxistas das ruas do Cairo, nas quais os mais diversos aspectos socioculturais são abordados. Para tratar desse tópico o autor escolheu um recurso linguístico que ainda gera polêmica na prosa árabe: todos os diálogos, que compõem a maior parte da obra, estão em dialeto árabe enquanto as partes narrativas estão em árabe padrão. Esse contraste, que deriva naturalmente da situação de diglossia presente nas comunidades falantes de árabe, cria um efeito de oralidade, bem como é relevante para a lógica interna da narrativa. Assim, a proposta de tradução apresentada considerou a natureza da composição da obra, o momento histórico e o funcionamento da diglossia no Egito para buscar no português recursos para reproduzir os efeitos relevantes dessa alternância sem comprometer a representação da cultura egípcia. Para estabelecer os possíveis recursos no português foram utilizadas principalmente pesquisas do NURC/SP. / This masters dissertation proposes a strategy to translate the book Taxi to Portuguese based specially on the cultural approach to translation. The strategy aims at the reproduction of the contrast of standard Arabic and Egyptian dialect verified in the original. The book Taxi by the Egyptian author Khalid al-Khamissi, is composed by short stories (addtas) that depict conversations between the author (as a character) and taxi drivers working on the streets of Cairo. Considering that different social and cultural aspects are explored in these dialogues, the author chose a linguistic procedure that is still source of polemic in the Arabic prose studies: all the dialogues, which constitute the most part of the work, were written in Egyptian dialect, while the typical standard Arabic was used for the narrative. This contrast, which is a reflex of the presence of diglossia in the Arabic speaking communities, creates an effect of oral text, as well as is relevant for the internal logic of the narrative. Thus, the translation proposed has considered the nature of the composition, the historical moment and the way diglossia works in Egypt with the aim of reproducing the relevant effects created by the linguistic alternation of the original without compromising the depiction of the Egyptian culture. In order to stablish the possible resources present in the Portuguese language, the linguistic works from NURC/SP (studies on Educated Urban Norm of São Paulo) were specially consulted.

O presente trabalho propõe uma estratégia de tradução para Táxi baseada principalmente na abordagem cultural da tradução em busca de reproduzir o contraste entre árabe padrão e dialeto presente no original. Táxi, do egípcio Khalid al-Khamissi, traz pequenas histórias (addtas) que retratam conversas do autor/personagem com taxistas das ruas do Cairo, nas quais os mais diversos aspectos socioculturais são abordados. Para tratar desse tópico o autor escolheu um recurso linguístico que ainda gera polêmica na prosa árabe: todos os diálogos, que compõem a maior parte da obra, estão em dialeto árabe enquanto as partes narrativas estão em árabe padrão. Esse contraste, que deriva naturalmente da situação de diglossia presente nas comunidades falantes de árabe, cria um efeito de oralidade, bem como é relevante para a lógica interna da narrativa. Assim, a proposta de tradução apresentada considerou a natureza da composição da obra, o momento histórico e o funcionamento da diglossia no Egito para buscar no português recursos para reproduzir os efeitos relevantes dessa alternância sem comprometer a representação da cultura egípcia. Para estabelecer os possíveis recursos no português foram utilizadas principalmente pesquisas do NURC/SP. / This masters dissertation proposes a strategy to translate the book Taxi to Portuguese based specially on the cultural approach to translation. The strategy aims at the reproduction of the contrast of standard Arabic and Egyptian dialect verified in the original. The book Taxi by the Egyptian author Khalid al-Khamissi, is composed by short stories (addtas) that depict conversations between the author (as a character) and taxi drivers working on the streets of Cairo. Considering that different social and cultural aspects are explored in these dialogues, the author chose a linguistic procedure that is still source of polemic in the Arabic prose studies: all the dialogues, which constitute the most part of the work, were written in Egyptian dialect, while the typical standard Arabic was used for the narrative. This contrast, which is a reflex of the presence of diglossia in the Arabic speaking communities, creates an effect of oral text, as well as is relevant for the internal logic of the narrative. Thus, the translation proposed has considered the nature of the composition, the historical moment and the way diglossia works in Egypt with the aim of reproducing the relevant effects created by the linguistic alternation of the original without compromising the depiction of the Egyptian culture. In order to stablish the possible resources present in the Portuguese language, the linguistic works from NURC/SP (studies on Educated Urban Norm of São Paulo) were specially consulted.

There is an increasing trend towards advancing the understanding and development of ethylene oligomerization catalysts, both in academia and industry. The metal of choice in this chemistry is invariably chromium, which has shown great versatility in selective trimerization/tetramerization, non-selective oligomerization and polymerization of ethylene. While much success has been achieved in ethylene trimerization, the same con not be said about tetramerization catalysis. Aminophosphine based ligands have demonstrated their ability towards selective 1-octene production, however, the popular PNP catalyst is able to achieve only 70% selectivity. In order to explore the possibility of developing and enhancing the selectivity of chromium based ethylene tetramerization catalyst, this thesis work was undertaken. The ligand systems we chose for our work were bidentate aminophosphine based (PN(CH2)nNP), which has yielded interesting selective oligomerization. Subtle modifications were found to result in drastic changes in selectivity, from tetramerization (PN(CH2)3NP) to trimerization (PN(CH2)2NP). We managed to successfully develop the first truly selective (over 90%) 1-octene catalyst with polymer-free behavior. Further modifications on the ligand framework, where one atom of Si was used to link the two NP units, resulted in non-selective oligomerization, in which case we determined that the oxidation-state of chromium is a key player. We explored other modifications on our selective ligands in which one of the arms on the bidentate ligand was replaced with a base-donor amine, phosphine or pyridine, and resulted in interesting selectivity changes. The final modification that we tested was a novel N(CH2)2P ligand and found it to be a highly active, non-selective oligomerization catalyst.

There is an increasing trend towards advancing the understanding and development of ethylene oligomerization catalysts, both in academia and industry. The metal of choice in this chemistry is invariably chromium, which has shown great versatility in selective trimerization/tetramerization, non-selective oligomerization and polymerization of ethylene. While much success has been achieved in ethylene trimerization, the same con not be said about tetramerization catalysis. Aminophosphine based ligands have demonstrated their ability towards selective 1-octene production, however, the popular PNP catalyst is able to achieve only 70% selectivity. In order to explore the possibility of developing and enhancing the selectivity of chromium based ethylene tetramerization catalyst, this thesis work was undertaken. The ligand systems we chose for our work were bidentate aminophosphine based (PN(CH2)nNP), which has yielded interesting selective oligomerization. Subtle modifications were found to result in drastic changes in selectivity, from tetramerization (PN(CH2)3NP) to trimerization (PN(CH2)2NP). We managed to successfully develop the first truly selective (over 90%) 1-octene catalyst with polymer-free behavior. Further modifications on the ligand framework, where one atom of Si was used to link the two NP units, resulted in non-selective oligomerization, in which case we determined that the oxidation-state of chromium is a key player. We explored other modifications on our selective ligands in which one of the arms on the bidentate ligand was replaced with a base-donor amine, phosphine or pyridine, and resulted in interesting selectivity changes. The final modification that we tested was a novel N(CH2)2P ligand and found it to be a highly active, non-selective oligomerization catalyst.

There is an increasing trend towards advancing the understanding and development of ethylene oligomerization catalysts, both in academia and industry. The metal of choice in this chemistry is invariably chromium, which has shown great versatility in selective trimerization/tetramerization, non-selective oligomerization and polymerization of ethylene. While much success has been achieved in ethylene trimerization, the same con not be said about tetramerization catalysis. Aminophosphine based ligands have demonstrated their ability towards selective 1-octene production, however, the popular PNP catalyst is able to achieve only 70% selectivity. In order to explore the possibility of developing and enhancing the selectivity of chromium based ethylene tetramerization catalyst, this thesis work was undertaken. The ligand systems we chose for our work were bidentate aminophosphine based (PN(CH2)nNP), which has yielded interesting selective oligomerization. Subtle modifications were found to result in drastic changes in selectivity, from tetramerization (PN(CH2)3NP) to trimerization (PN(CH2)2NP). We managed to successfully develop the first truly selective (over 90%) 1-octene catalyst with polymer-free behavior. Further modifications on the ligand framework, where one atom of Si was used to link the two NP units, resulted in non-selective oligomerization, in which case we determined that the oxidation-state of chromium is a key player. We explored other modifications on our selective ligands in which one of the arms on the bidentate ligand was replaced with a base-donor amine, phosphine or pyridine, and resulted in interesting selectivity changes. The final modification that we tested was a novel N(CH2)2P ligand and found it to be a highly active, non-selective oligomerization catalyst.

No description available.

The rise of the 21st Century Islamic extremist movement, which was mobilised by the al-Qaeda attacks of and responses to September 11, 2001, heralds a new period in the history of terrorism. The increased frequency and intensity of this type of terrorism affects every nation in the world, not least Australia. Rising to meet the challenges posed by terrorism is the field of terrorism studies, the field which aims at understanding, explaining, and countering terrorism. Despite the importance of the field, it has been beleaguered with criticisms since its inception as a response to the rise of international terrorism. These criticisms specifically aim at the field's lack of objectivity, abstraction, levels of research, and levels of analysis. These criticisms were the impetus behind the adoption of the methodology of this thesis, which offers the distinct ability to understand, explain, and forecast the way in which terrorists interact within covert cells. Through social network analysis, this thesis examines four terrorist cells that have operated in or against Australia. These cells are from the groups Hrvatsko Revolucionarno Bratstvo (Croatian Revolutionary Brotherhood), Aum Shinrikyo (Supreme Truth), Lashkar-e-Taiba (Army of the Pure), and Jemaah Islamiyah (Islamic Community) and operated between 1963 and 2003. Essentially, this methodology attempts to discover, map, and analyse the interaction within the cells during the covert stage of their respective operations. Following this, the results are analysed through the traditional social network analysis frameworks to discover the internal dynamics of the cell and identify the critical nodes (leaders) within the cells. Destabilisation techniques are subsequently employed, targeting these critical nodes to establish the most effective disruption techniques from a counter-terrorism point of view. The major findings of this thesis are: (1) that cells with a focus on efficiency rather than covertness were more successful in completing their objectives (contrary to popular belief); and (2) betweenness centrality (control over the flow of communication) is a critical factor in identifying leaders within terrorist cells. The analysis also offered significant insight into how a Jemaah Islamiyah cell might operate effectively in Australia, as well as the importance of local contacts to terrorist operations and the significance of international counter-terrorism cooperation and coordination.