Este artigo procura estabelecer os fundamentos filosóficos e epistemológicos que permitam suportar a educação para a cidadania, tendo em vista um novo conceito de cidadania que responda às necessidades da sociedade contemporânea. Neste âmbito, o artigo confronta autores clássicos com o intuito de indagar acerca dos limites e da natureza do conhecimento e da ação humana. A obra destes autores será relacionada com o trabalho de investigadores recentes, na área da epistemologia experimental e da psicologia. Isto permitirá tirar as conclusões (...) desejadas, não perdendo de vista as caraterísticas e os desafios da sociedade contemporânea. (shrink)

Falaremos de uma cidadania criativa que se configura lentamente na sociedade contemporânea. Consumo, beleza, vaidade, moda e corpo são elementos que irão fazer o campo da cultura refletir sobre conceitos que estavam, por muito tempo, sedimentados no campo da Comunicação. As jovens mulheres que se autointitulam “ratas” e seu estilo de vida nos guiaram para problematizar questões relativas às sociabilidades comunitárias e à cidadania cultural. Este trabalho faz uma imersão de campo na comunidade na favela da Candelária, na Mangueira, Rio (...) de Janeiro. (shrink)

Drawing on feminist and sociocultural theories of emotion that focus on the social, political, and dynamic nature of emotions in history teachers’ pedagogical decision-making, this article presents findings from the analysis of interviews with two white teachers on the role of emotions in their teaching of history in comprehensive, urban high schools. While the teachers perceived that students’ emotional connection to historical content was a necessary step in learning history, each teacher negotiated different emotional rules in their classrooms, creating unique (...) learning experiences for their students. This study demonstrates the significance of emotions in history teaching, providing examples of the complexity of how teachers navigate dominant discourses about students and education and their own personal goals when it comes to teaching about the past. (shrink)

Although the skeptical crisis at the dawn of modern philosophy can be properly labelled Pyrrhonian specific features of the academic school of skepticism played an important role in this crisis. Academic skepticism becomes even more influential in post-Cartesian skepticism from Foucher to Hume.

Creating a mobile software-based exploration (artwork?/app?) puts the artist-coder in a position to interact with the mediated image streams that connect people on the Internet. The mediated streams often contain portraits and self-portraits, selfies, of the participants. These selfies are visual status messages of the people participating in the data streams. They can be used by the poster to identify themselves in the data stream and represent a way the creator of the selfie wants to be seen by the social (...) circle in which the image is posted. These images could reveal recognizable characteristics of the subject. The characteristics could be recognizable by people and software along the mediated path that the image traverses. Algorithmic intervention on the image affects the human and software interpretation of the image. In the works #autoselfie and FIFO ribbon, images are modified on a pixel level, in a way that the user of the app/work cannot control completely. The modifications reveals the potential power of the software systems to modify the imagery that people use to identify themselves in mediated communication environments. Moreover, the changes applied are chosen by the artist coder to impede recognition by software systems downstream but make human recognition possible in some cases. The alterations make the software in the app visible on a pixel level. The works then let the user post the altered images on Twitter or Google+ social media streams. The framing of this work as artwork or mobile app creates a tension, which affects audience interpretation and user experience choices made by the artist. These ideas are explored in the 2013 work #autoselfie and the 2014 work FIFO ribbon that runs on Android devices. #autoselfie was used to remix images created by winners of the South African 2013 Sanlam National Portrait Award, to explore the intervention of algorithms on mediated portraits and self-portraits. (shrink)

The current research explored the effect of anger on hypothesis confirmation—the propensity to seek information that confirms rather than disconfirms one's opinion. We argued that the moving against action tendency associated with anger leads angry individuals to seek out more disconfirming information than sad individuals, attenuating the confirmation bias. We tested this hypothesis in two studies of experimentally primed anger and sadness on the selective exposure to hypothesis confirming and disconfirming information. In Study 1, participants in the angry condition were (...) more likely to choose disconfirming information than those in the sad or neutral condition when given the opportunity to read more about a social debate, and reading the disconfirming information affected their subsequent attitude. Study 2 measured participants' opinions and information selection about the 2008 US Presidential Election and their desire to “move against” a person or object. Participants in the angry condition reported a greater tendency to oppose a person or object, which resulted in the attenuation of the confirmation bias. (shrink)

In this paper, we intend to discuss if and in what sense semiosis (meaning process, cf. C. S. Peirce) can be regarded as an "emergent" process in semiotic systems. It is not our problem here to answer when or how semiosis emerged in nature. As a prerequisite for the very formulation of these problems, we are rather interested in discussing the conditions which should be fulfilled for semiosis to be characterized as an emergent process. The first step in this work (...) is to summarize a systematic analysis of the variety of emergence theories and concepts, elaborated by Achim Stephan. Along the summary of this analysis, we pose fundamental questions that have to be answered in order to ascribe a precise meaning to the term "emergence" in the context of an understanding of semiosis. After discussing a model for explaining emergence based on Salthe's hierarchical structuralism, which considers three levels at a time in a semiotic system, we present some tentative answers to those questions. (shrink)

: In this paper, we intend to discuss if and in what sense semiosis (meaning process, cf. C. S. Peirce) can be regarded as an "emergent" process in semiotic systems. It is not our problem here to answer when or how semiosis emerged in nature. As a prerequisite for the very formulation of these problems, we are rather interested in discussing the conditions which should be fulfilled for semiosis to be characterized as an emergent process. The first step in this (...) work is to summarize a systematic analysis of the variety of emergence theories and concepts, elaborated by Achim Stephan. Along the summary of this analysis, we pose fundamental questions that have to be answered in order to ascribe a precise meaning to the term "emergence" in the context of an understanding of semiosis. After discussing a model for explaining emergence based on Salthe's hierarchical structuralism, which considers three levels at a time in a semiotic system, we present some tentative answers to those questions. (shrink)

Resumen La argumentación es una forma de discurso en la que un hablante defiende una postura en una discusión. El presente trabajo se enfoca en la complejidad argumentativa y los recursos evaluativos y evidenciales que caracterizan las disputas de niños de diverso nivel socioeconómico. Se analizaron 94 disputas entre niños de 4 años y otros niños (5 a 10 años) en situaciones de juego espontáneo registradas en hogares de sectores socioeconómicos medio y bajo. El análisis identificó diferencias marginales en la (...) complejidad argumentativa entre los grupos. Por su parte se hallaron diferencias significativas en recursos de evaluativos de emocionalidad y en los evidenciales deónticos y exclamativos a favor de los sectores de nivel socioeconómico bajo. Los sectores medios registraron un mayor empleo de expresiones de causalidad y conectores. Los resultados se discuten a la luz de los hallazgos de investigaciones previas. Abstract Argumentation is a type of discourse in which a speaker defends a claim in a discussion. The present work focuses on the argumentative complexity and the evaluative and evidential resources that characterize the disputes of children of different socioeconomic levels. We analyzed 94 disputes between 4-year-old children and other children (5 to 10 years old) in situations of spontaneous play registered in homes of middle and low socioeconomic status (SES). The analysis identified marginal differences in argumentative complexity between the groups. On the other hand, significant differences were found in evaluative expressions of emotion and in deontic and exclamatory evidential markers, more frequently used by the low SES group. The mid SES group tends to use a higher number of expressions of causality and connectors. The results are discussed with reference to the findings of previous research. (shrink)

The history of ideas about addiction often comes down to a history of debates over the use and meaning of language. Nowhere is this more clear than in the interminable “Is addiction a ‘disease’?” debate. In Marc Lewis’ excellent Biology of Desire and in his paper that centers this issue, there is far more agreement between his work and mine than there is disagreement on the “disease” question. Here, however, I make a case for greater compatibility between the “disease” view (...) and learning models of addiction than Lewis does, because I think the nuance is worth exploring. Indeed, if addiction science and ethics paid more attention to nuance in general, the whole field would be far better off. (shrink)

This article reviews Alex Anievas and Kerem Nişancıoğlu’sHow the West Came to Rule: The Geopolitical Origins of Capitalism(2015). It argues that the book offers a stimulating and ambitious approach to solving the problems of Eurocentrism and the origins of capitalism in growing critical scholarship in historical sociology and International Relations. However, by focusing on the ‘problem of the international’ and proposing a ‘single unified theory’ based on uneven and combined development, the authors present a history of international relations that trades (...) off methodological openness and legal complexity for a structural and exclusive consequentialism driven by anti-Eurocentrism. By misrepresenting the concept of social-property relations in terms of the internal/external fallacy, and by confusing different types of ‘internalism’ required by early-modern jurisdictional struggles, the book problematically conflates histories of international law and capitalism. These methodological problems are contextualised by examples from the Spanish, French and British empires’ conceptions of sovereignty and jurisdiction and their significant legal actors and processes. (shrink)

Some of the fundamental activities of the software development process are related to the discipline of Requirements Engineering. Their objectives are to discover, analyze, document, and verify the system’s requirements. The requirements are the conditions or capabilities that software needs to have or fulfill to meet its users’ needs, and problems in its identification can mean the failure of a software project. This study is part of the research that is being developed to propose a model based on Know­ledge Organization (...) Systems to be used in the Requirements engineering process. This article aims to present the results of an analysis on a set of Know­ledge Organization Systems to identify whether they are likely to be applied in the Requirements engineering process and identify at which stage of this process each one of them can be implemented. The Know­ledge Organization Systems analyzed were the authority files, gazetteers, glossaries, subject headings, classification systems, thesauri, semantic networks, and ontologies. Based on the results obtained, it was possible to conclude that the Know­ledge Organization Systems analyzed can be used in the Requirements engineering process and, consequently, contribute to increasing the software requirements’ quality. (shrink)

Harmful but culturally cherished practices often endure in spite of the damages they cause. Meat consumption is increasingly becoming one of such cases and may provide an opportunity from which to observe these phenomena. Growing evidence indicates that current and projected production and consumption patterns are important contributors to significant environmental problems, public health degradation, and animal suffering. Our aim is to contribute to a further understanding of the psychological factors that may hinder or promote personal disposition to change food (...) habits to benefit each of these domains. Drawing from previous evidence, this study explores the proposition that some consumers are motivated to resort to moral disengagement strategies when called upon to consider the impacts of their food habits. Data were collected from six semi-structured focus groups with a sample of 40 participants. Although affirming personal duties towards preserving the environment, promoting public health, and safeguarding animal welfare, participants did not show personal disposition to change their meat consumption habits. Several patterns of response that resonate with the principles of moral disengagement theory were observed while discussing impacts and the possibility of change. Results seem to support the proposition that the process of moral disengagement may play a role in hindering openness to change food habits for the benefit of the environment, public health, and animals, and point towards the relevance of further exploring this approach. (shrink)

This article seeks to clarify the concepts of risk and uncertainty, restricting its focus to environmental problems and to three strands of reflection. Firstly, I suggest that we should apply the label riscophrenia to the tendency to envisage most environmental problems excessively in terms of probabilistic risk, erecting the concept to a core dogma of certainty based on the image it offers of safety and control of the random. Looking at the most serious environmental problems of the twenty-first century through (...) the prism of "animal spirits" is above all an exercise which shows that unpredictability and uncertainties are constituent elements of human existence and social life. Secondly, I argue that the assessment of uncertainty has political and normative implications. I hold that uncertainty may make it possible to invoke precautionary, not just preventive, measures, and that alternative "contextualised" research strategies, open to a variety of points of view, are possible. Lastly, I claim that the language of risk and its excessive application is generally laden with a type of ambiguity which tends not to emphasize society's current problems, and so facilitates the continuation rather than the questioning of our society's dominant technocratic and technological model. (shrink)

Histone variants are specialized histones which replace their canonical counterparts in specific nucleosomes. Together with histone post‐translational modifications and DNA methylation, they contribute to the epigenome. Histone variants are incorporated at specific locations by the concerted action of histone chaperones and ATP‐dependent chromatin remodelers. Recent studies have shown that the histone chaperone FACT plays key roles in preventing pervasive incorporation of two histone variants: H2A.Z and CenH3/CENP‐A. In addition, Spt6, another histone chaperone, was also shown to be important for appropriate (...) H2A.Z localization. FACT and Spt6 are both associated with elongating RNA polymerase II. Based on these two examples, we propose that the establishment and maintenance of histone variant genomic distributions depend on a transcription‐coupled epigenome editing (or surveillance) function of histone chaperones. (shrink)

O presente artigo debruça-se sobre a tradução argentina do livro Who Sings the Nation-State? de Butler e Spivak. Colocando em questão a relação entre tradução e hino nacional para sublinhar o possível nacionalismo atinente a determinadas manifestações políticas, esse mesmo livro, não obstante a sua própria advertência sobre a necessidade de incli-nação para cantar o hino, “erra” a grafia de “Il [sic] pueblo unido jamás sera [sic] vencido” ao citá-lo. Entretanto, será esse o caso de um “erro” deliberado, de uma (...) contradição performativa? Com que incli-nação Butler terá citado essa canção? E o que poderia significar o fato de que, havendo suspeita de nacionalismo de um lado, de outro parece não haver, pois o tradutor da edição argentina “corrige” esses erros e, ao mesmo tempo, testemunha, em nota de rodapé, que estão “En español en el original”? Analisando esses impasses da tradução, o artigo pretende indicar a contundência política que há na tarefa do tradutor e nas formas com que a literatura infringe as gramáticas. (shrink)

O presente artigo aborda um acontecimento recente ao redor de um problema babélico e, por conseguinte, literário, com o intuito de esclarecer os limites e os poderes da tradução. Não apenas é sabido que a responsabilidade de um tradutor está ligada a critérios empregados em escolhas atinentes às palavras, respeitando ou não a plurívoca matiz de seus significados e, detrás disso, seu sentido, mas, também, o tradutor escolhe, ao traduzir, aquilo que não deve ser traduzido, aquilo que, em determinados contextos, (...) só é dito mantendo-se à distância. (shrink)

This work intends to demonstrate the existence of limits that hinder the absolute authority of the sovereign in Hobbes’s political theory. Particularly, I will try to identify the concept of honor as the paradigm of this limitation. The field of the manifestations of worth — it will be argued — operates within a logic that runs parallel to that of the State. Moreover, it engenders authorities with high degree of autonomy. To be sure, the sovereign power can intervene in this (...) field by means of persuasion and coercion, but it will never be able to erase the resistances and limitations imposed by signs of honor. (shrink)

Josef Sudek, the 'Poet of Prague', had a legendary career spanning almost six decades. His craftsmanship and technical virtuosity were unparalleled among his contemporaries. Faced with the legacy of cubism, surrealism and the Czech avantgarde, Sudek sought his own approach, characterized by a striking mastery of light.

This article explores the correlations between linguistic figurative features and their corresponding conceptual representations, by considering their respective continuities and discontinuities in language shift. I compare the figurative encoding of emotions in Kriol, a creole of northern Australia, with those of Dalabon, one of the languages replaced by this creole, with a particular focus on evidence from metaphorical gestures. The conclusions are three-fold. Firstly, the prominent figurative association between the body and the emotions observed in Dalabon is, overall, not matched (...) in Kriol. Secondly, although this association is not prominent in Kriol, it is not entirely absent. It surfaces where speakers are less constrained by linguistic conventions: in non-conventionalized tropes, and gestures in particular. Indeed, some of the verbal emotion metaphors that have disappeared with language shift are preserved as gestural metaphors. Thus, Kriol speakers endorse the conceptual association between emotions and the body, in spite of the lower linguistic incidence of this association. The third conclusion is that therefore, in language shift, conceptual figurative representations and linguistic figurative representations are independent of each other. The former can persist when the latter largely disappear. Conversely, the fact that speakers endorse a certain type of conceptual representation does not entail that they will use corresponding linguistic forms in the new language. The transfer of linguistic figurative representations seems to depend, instead, upon purely linguistic parameters. (shrink)

This paper aims to develop the notion of ‘therapy of desire’ as a hermeneutic key for understanding Kierkegaard’s view of desire. First, I develop the notion of ‘therapy of desire’ as it has appeared in the secondary literature on Kierkegaard and Augustine, particularly in Lee C. Barrett. In my reading, I underscore how a ‘therapy of desire’ implies that the desire can be ‘healed’ and that the desirer has ‘agency’ over his/her desires. Second, I conduct a textual analysis of Kierkegaard’s (...) discourse on Lk 22:15, which deals with the desire for the Eucharist. In employing the notion of ‘therapy of desire’ as a hermeneutic key to interpret it, I characterize Kierkegaard’s view of desire as a lack of satisfaction and verify how the ideas of ‘agency’ and ‘healing’ appear in Kierkegaard’s text. Finally, I show how the characterization of desire as a constant lack of satisfaction that consists in a gift from God, that implies the possibility of undertaking a healing process and that underscores the agency of the desirer, differs from some Lutheran ideas, namely the relationship between grace and deeds and the understanding of original sin. (shrink)

This innovative volume is an extended intellectual conversation about the ways personal lives are being undone and remade today. Examining the ethnography of the modern subject, this preeminent group of scholars probes the continuity and diversity of modes of personhood across a range of Western and non-Western societies. Contributors consider what happens to individual subjectivity when stable or imagined environments such as nations and communities are transformed or displaced by free trade economics, terrorism, and war; how new information and medical (...) technologies reshape the relation one has to oneself; and which forms of subjectivity and life possibilities are produced against a world in pieces. The transdisciplinary conversation includes anthropologists, historians of science, psychologists, a literary critic, a philosopher, physicians, and an economist. The authors touch on how we think and write about contingency, human agency, and ethics today. (shrink)

Zones of social abandonment are emerging everywhere in Brazil’s big cities—places like Vita, where the unwanted, the mentally ill, the sick, and the homeless are left to die. This haunting, unforgettable story centers on a young woman named Catarina, increasingly paralyzed and said to be mad, living out her time at Vita. Anthropologist João Biehl leads a detective-like journey to know Catarina; to unravel the cryptic, poetic words that are part of the “dictionary” she is compiling; and to trace (...) the complex network of family, medicine, state, and economy in which her abandonment and pathology took form. An instant classic, _Vita_ has been widely acclaimed for its bold fieldwork, theoretical innovation, and literary force. Reflecting on how Catarina’s life story continues, this updated edition offers the reader a powerful new afterword and gripping new photographs following Biehl and Eskerod’s return to Vita. Anthropology at its finest, _Vita_ is essential reading for anyone who is grappling with how to understand the conditions of life, thought, and ethics in the contemporary world. (shrink)

El propósito de este artículo es analizar la perspectiva de Hannah Arendt sobre el problema de la originalidad e incomprensibilidad del horror de los regímenes totalitarios, utilizando los testimonios de Primo Levi en Si esto es un hombre y Los hundidos y los salvados. Arendt considera que los campos de concentración y exterminio son la institución central de los regímenes totalitarios, en los cuales se intenta destruir la humanidad de las víctimas a través de prácticas de terror que no solo (...) acaban con su cuerpo, sino con su espíritu. Así, los testimonios de los sobrevivientes se convierten en las piezas clave para comprender la esencia y los ideales de estos sistemas políticos. De ahí que la memoria salte a la escena política para develar la verdad de este tipo de acontecimientos políticos y, a su vez, plantee una serie de problemas cuando se intenta definir su estatus investigativo. (shrink)

Zones of social abandonment are emerging everywhere in Brazil’s big cities—places like Vita, where the unwanted, the mentally ill, the sick, and the homeless are left to die. This haunting, unforgettable story centers on a young woman named Catarina, increasingly paralyzed and said to be mad, living out her time at Vita. Anthropologist João Biehl leads a detective-like journey to know Catarina; to unravel the cryptic, poetic words that are part of the “dictionary” she is compiling; and to trace (...) the complex network of family, medicine, state, and economy in which her abandonment and pathology took form. As Biehl painstakingly relates Catarina’s words to a vanished world and elucidates her condition, we learn of subjectivities unmade and remade under economic pressures, pharmaceuticals as moral technologies, a public common sense that lets the unsound and unproductive die, and anthropology’s unique power to work through these juxtaposed fields. _Vita’s_ methodological innovations, bold fieldwork, and rigorous social theory make it an essential reading for anyone who is grappling with how to understand the conditions of life, thought and ethics in the contemporary world. (shrink)

info:eu-repo/semantics/publishedVersion.

Political concepts are fundamentally polemical. Their supposed neutrality is solely a vain intellectual supposition. This paper pay attention to the XIX century's Politics through three political concepts: the representation, medieval notion wich the liberal genius transformed to fight the Ancien Régime; the association, socialist and traditionalist alternative to the revolutionary individualism; and finally the participation, based on the originary political community return's myth.

International Indigenous rights coalitions increasingly involve Indigenous and non-Indigenous civil society organizations with diverse backgrounds and interests. As these organizations more frequently interact and partner with one another, what issues are being emphasized in their advocacy efforts? This study utilizes content analysis of 60 Indigenous rights organizations’ websites, as well as interviews of several leaders and staff, to explore whether African Indigenous organizations emphasize different aspects of Indigenous rights in their messaging and advocacy than their other Indigenous and non-Indigenous coalition (...) partners, We find that African Indigenous CSOs discuss issues of unequal treatment more frequently, and issues of self-determination and assimilation less frequently, than their coalition partners. The messaging of Indigenous organizations outside of Africa contained similar themes as that of non-Indigenous CSOs. This raises questions regarding why these messages differ: do African Indigenous groups have distinct concerns and/or are there other reasons for the variance in messaging across international Indigenous rights coalitions. (shrink)

This volume is a collection of essays of a philosophical nature on the subject of technology, introducing authors from the Portuguese-speaking community, namely from Portugal itself, Africa and Brazil. Their contributions detail a unique perspective on technology, placing this important topic within the historical, ideological and social contexts of their countries, all of which share a common language. The shared history of these countries and the cultural and economic specificities of each one have stimulated singular insights into these thinkers’ reflections. (...) The essays are thematically diverse. Among the topics covered are technogenic knowledge, visions of technology, risks and uncertainties, mediatization, digitalization, and datafication, engineering practice and ethics, alternative technoscientific strategies, ontotechnologies of the body, virtual and archive. The contributions also explore other themes that are more closely related to the semi-peripheral world, such as technological dependence and the incorporation of Western technology into the social structure of ancestral communities. This book appeals to students and researchers and provides a voice to authors whose work are not usually available in English-language publications. It serves as an ideal guide for all those who seek rigorous and geographically widespread knowledge regarding thinking on technology in several Portuguese-speaking countries. (shrink)

El siguiente monográfico sobre Perú acoge diferentes reflexiones y aportaciones de un total de nueve trabajos que buscan problematizar y arrojar luz sobre algunos aspectos que han acompañado al proceso de construcción democrática que el país ha venido experimentando desde 1980. Como otros escenarios de la región, la democracia se erige tras décadas convulsas para un sistema político cooptado por elites caudillistas, encono político, intromisión militar y condiciones estructurales irresolutas. Este conjunto de factores, inscritos en un contexto de guerra fría, (...) y al albor de la revolución cubana, inspiró movimientos guerrilleros a inicios de los sesenta, como el Ejército de Liberación Nacional o el Movimiento de Izquierda Revolucionaria. Su escasa relevancia nada tendría que ver con la fuerza disruptiva que experimentaría el Partido Comunista del Perú - Sendero Luminoso. Un grupo armado de marcada impronta maoísta que, si bien hunde sus raíces en la ruptura sino-soviética de 1962, construye sus fundamentos ideológicos y sus bases revolucionarias durante la década de los setenta. (shrink)

In 2002, Luciano Floridi published a paper called What is the Philosophy of Information?, where he argues for a new paradigm in philosophical research. To what extent should his proposal be accepted? Is the Philosophy of Information actually a new paradigm, in the Kuhninan sense, in Philosophy? Or is it only a new branch of Epistemology? In our discussion we will argue in defense of Floridi’s proposal. We believe that Philosophy of Information has the types of features had by other (...) areas already acknowledge as authentic in Philosophy. By way of an analogical argument we will argue that since Philosophy of Information has its own topics, method and problems it would be counter-intuitive not to accept it as a new philosophical area. To strengthen our position we present and discuss main topics of Philosophy of Information. (shrink)

This article presents the first systematic typological study of emotional expressions involving body parts at the scale of a continent, namely the Australian continent. The role of body parts in figurative descriptions of emotions, a well-established phenomenon across the world, is known to be widespread in Australian languages. This article presents a typology of body-based emotional expressions across a balanced sample of 67 languages, where we found that at least 30 distinct body parts occur in emotional expressions. The belly is (...) by far the most frequent, and a dozen others also have significant representation. The study shows how the properties of these body parts – e.g., whether they are internal organs or visible facial parts – partly determine which historical scenarios led to their linguistic associations with emotions, and in turn, their semantic and figurative properties. (shrink)

This paper discusses how to define logics as deductive limits of sequences of other logics. The case of da Costa's hierarchy of increasingly weaker paraconsistent calculi, known as $ \mathcal {C}$n, 1 $ \leq$ n $ \leq$ $ \omega$, is carefully studied. The calculus $ \mathcal {C}$$\scriptstyle \omega$, in particular, constitutes no more than a lower deductive bound to this hierarchy and differs considerably from its companions. A long standing problem in the literature (open for more than 35 years) is (...) to define the deductive limit to this hierarchy, that is, its greatest lower deductive bound. The calculus $ \mathcal {C}$min, stronger than $ \mathcal {C}$$\scriptstyle \omega$, is first presented as a step toward this limit. As an alternative to the bivaluation semantics of $ \mathcal {C}$min presented thereupon, possible-translations semantics are then introduced and suggested as the standard technique both to give this calculus a more reasonable semantics and to derive some interesting properties about it. Possible-translations semantics are then used to provide both a semantics and a decision procedure for $ \mathcal {C}$Lim, the real deductive limit of da Costa's hierarchy. Possible-translations semantics also make it possible to characterize a precise sense of duality: as an example, $ \mathcal {D}$min is proposed as the dual to $ \mathcal {C}$min. (shrink)

This work explores the concept of urban guerrilla, which was promoted and innovated by National Liberation Movement – Tupamaros, in Uruguay. After a thorough review of the “David Cámpora” Archive of Armed Struggle –located at the University of the Republic– and in–depth interviews with prominent Tupamaro members, this article analyzes the evolution of this particular revolutionary project. These pages address issues such as the factors that influenced the adoption of the urban guerrilla approach and the consequences and demands, internal and (...) external, that accompanied it. It also presents the influences, tensions and contradictions that have arisen regarding the use of violence, the dispute against the State or the adaptation to circumstances that have changed drastically in less than a decade – from a quality of democracy unparalleled in the region, to a dictatorial regime of military imprint. All of the above, without losing sight of the exceptional geopolitical dimension that the Latin American continent went through, and especially the Southern Cone, in the 60s and 70s of the last 20th century. (shrink)