Some constructions of compact quantum groups

The purpose of this paper is to consider some basic constructions in the category of compact quantum groups --for example de case of extensions, of Drinfeld twists, of matched pairs, of extensions, of linked pairs and of cocycle Singer pairs -- with special emphasis in the finite dimensional situation. We give conditions, in some cases necessary and sufficient, to extend to the new objects the original compact structure. We illustrate the results in the case of matched pairs of groups

Transformacions globals i conflictes socioambientals

L'Institut de Ciència i Tecnologia Ambientals (ICTA) de la UAB publica a la revista Global Environmental Change una secció especial sobre "Transformacions globals, metabolisme social i la dinàmica dels conflictes socioambientals". En aquesta secció, diversos investigadors de l'ICTA aprofundeixen en la transformació global que s'està produint actualment amb el sorgiment de la Xina com un nou poder econòmic i com això repercuteix en els conflictes socials o ambientals arreu del món. Aquesta publicació va comptar amb un finançament parcial del projecte ENGOV sobre governança ambiental a Amèrica Llatina (www.engov.eu).El Instituto de Ciencia y Tecnología Ambientales (ICTA) de la UAB publica en la revista Global Environmental Change una sección especial sobre "Transformaciones globales, metabolismo social y la dinámica de los conflictos socio-ambientales".En esta sección, varios investigadores del ICTA profundizan en la transformación global que se esta produciendo actualmente con el surgimiento de China como un nuevo poder económico y cómo esto repercute en los conflictos sociales o ambientales en todo el mundo. Esta publicación contó con una financiación parcial del proyecto ENGOV sobre gobernanza ambiental en América Latina (www.engov.eu)

Nuevos conflictos ambientales mineros en Argentina. El caso Esquel (2002-2003)

Desde el año 2003, se ha producido en Argentina un aumento en la conflictividad social de los proyectos mineros. El artículo analiza el primer conflicto ambiental minero que instala en la agenda pública argentina el debate en torno de esta actividad, en la ciudad de Esquel (2002-2003). Esta experiencia impulsa la organización de una red de comunidades afectadas en todo el país. Se reconstruye el ciclo del conflicto: su inicio, sus puntos de inflexión, los actores, sus percepciones y lenguajes de valoración, considerando lo que estuvo en juego en las diferentes etapas. El conflicto se inicia con una serie de disputas en torno de la información y la percepción del riesgo que socavan la confianza de la comunidad en el proyecto y sus impulsores. Se constituye así un movimiento vecinal que antepone al esquema centralizado y poco participativo de evaluación del proyecto una lectura propia del mismo, expresando su postura en una diversidad de lenguajes de valoración que no encuentran cabida en el proceso formal de toma de decisiones. En el cierre, va tomando forma una interpretación estructural de sus orígenes, atribuidos a los esquemas de toma de decisión y a la desigual distribución de beneficios propiciada por el marco normativo nacional, promotor de la minería.Since 2003, Argentina is experiencing an increasing amount of environmental conflicts related to mining projects. This article analyses the first mining conflict that started a public debate about gold mining activities and its impacts, in Esquel City (2002-2003). This experience led to the organization of a national network of affected communities. This article studies the environmental conflict cycle: its beginning, stages, actors, viewpoints and languages of valuation, considering the stakes at each stage. The conflict started with a dispute over the information and the risk perceptions that undermined the communities' trust in the project and its promoters. A local movement was constituted to oppose the centralized and closed evaluation and decision-making scheme. The community developed an autonomous analysis of the project and its impacts, expressing it through a variety of languages of valuation that could not be integrated in the decision making process. Towards the end of the conflict, the structural foundations of the conflict are seen as the lack of local participatory spaces and the unequal distribution of the benefits and burdens of mining activities promoted by the national regulatory framework

Sources of Income Persistence: Evidence from Rural El Salvador

This paper uses a unique panel dataset (1995-2001) of rural El Salvador to investigate the main sources of the persistence and variability of incomes. First we propose an econometric framework where a general dynamic panel model is validly reduced to a simple linear structure with a dynamic covariance structure, which augments considerably the number of degrees of freedom usually lost in the construction of instruments to estimate standard dynamic panel models. Then we investigate the extent to which families are continuously poor due to endowments (observed and unobserved) that yield low income potential or due to systematic income shocks that they are unable to smooth. We find that life-cycle incomes are largely explained by the relatively time-invariant productive characteristics of families and their members such as education, public goods and other assets. Observed income determinants account for about half of income persistence. Controlling for unobserved heterogeneity leaves little room for pure state dependence. Although of second order, high volatility and the inability to insure from shocks is a more important source of variation in incomes than in developed countries. Low income potential is the more likely source of poverty traps in Rural El Salvador. Many of the family endowments are manipulable by policy interventions, although many not in the short term.Income mobility, Poverty Traps, Panel Data, El Salvador

Nuevos conflictos ambientales mineros en Argentina. El caso Esquel (2002-2003)

Desde el año 2003, se ha producido en Argentina un aumento en la conflictividad social de los proyectos mineros. El artículo analiza el primer conflicto ambiental minero que instala en la agenda pública argentina el debate en torno de esta actividad, en la ciudad de Esquel (2002-2003). Esta experiencia impulsa la organización de una red de comunidades afectadas en todo el país. Se reconstruye el ciclo del conflicto: su inicio, sus puntos de inflexión, los actores, sus percepciones y lenguajes de valoración, considerando lo que estuvo en juego en las diferentes etapas. El conflicto se inicia con una serie de disputas en torno de la información y la percepción del riesgo que socavan la confianza de la comunidad en el proyecto y sus impulsores. Se constituye así un movimiento vecinal que antepone al esquema centralizado y poco participativo de evaluación del proyecto una lectura propia del mismo, expresando su postura en una diversidad de lenguajes de valoración que no encuentran cabida en el proceso formal de toma de decisiones. En el cierre, va tomando forma una interpretación estructural de sus orígenes, atribuidos a los esquemas de toma de decisión y a la desigual distribución de beneficios propiciada por el marco normativo nacional, promotor de la minería.conflictos ambientales, minería de oro, lenguajes de valoración, incertidumbres científicas, postmaterialismo, ecologismo popular.

Non-deterministic Semantics in Polynomial Format

AbstractThe method for automatic theorem proving proposed in [Carnielli, W. A., Polynomial ring calculus for many-valued logics, Proceedings of the 35th International Symposium on Multiple-Valued Logic, IEEE Computer Society. Calgary, Canada (2005), 20–25], called Polynomial Ring Calculus, is an algebraic proof mechanism based on handling polynomials over finite fields. Although useful in general domains, as in first-order logic, certain non-truth-functional logics and even in modal logics (see [Agudelo, J. C., Carnielli, W. A., Polynomial Ring Calculus for Modal Logics: a new semantics and proof method for modalities, The Review of Symbolic Logic. 4 (2011), 150–170, URL: doi:10.1017/S1755020310000213]), the method is particularly apt for deterministic and non-deterministic many-valued logics, as shown here. The aim of the present paper is to show how the method can be extended to any finite-valued non-deterministic semantics, and also to explore the computational character of the method through the development of a software capable of translating provability in deterministic and non-deterministic finite-valued logical systems into operations on polynomial rings

Knowledge Co-Production in Scientific and Activist Alliances : Unsettling Coloniality

Unidad de excelencia María de Maeztu CEX2019-000940-MThis paper examines alliances between scientists and local groups in the context of environmental justice conflicts. We analyze the trajectories of two white male scientific experts collaborating with activist groups in mining and nuclear conflicts around the world. We posit the knowledge co-production processes that take place in these collaborations can challenge (internal and external) power relations and hegemonic discourses around pollution. These collaborations can entail three types of co-production: (i) co-production of knowledge where new technical knowledge is co-created; (ii) co-production of interpretation through which knowledge is contextualized technically and politically; and (iii) the co-production of the mobilization of knowledge where different expertise collaborate in the elaboration of strategies based on their (scientific, local, Indigenous, traditional or experiential) knowledges and networks. Whilst knowledge co-production provides legitimacy and confidence to local groups; knowledge interpretation and its mobilization provide public legitimacy, visibility, and political leverage. This paper unsettles seemingly colonial processes pointing to the importance of locally driven alliances, the collaborative dynamics at play merging local and scientific expertise as well as the motivations and trajectories of scientists and local groups. Our approach makes visible how these alliances are the result of supra-local networks of support that connect scientists with local groups struggling against extractive activities

Community mining consultations in Latin America (2002-2012): The contested emergence of a hybrid institution for participation

Unidad de excelencia María de Maeztu MdM-2015-0552Altres ajuts: The Post-Doctoral Specialization Programme of the University of the Basque Country (UPV/EHU) and the project IT697-13 of the Basque Government (Parte-Hartuz - Consolidated Research Groups).From 2002 to 2012, 68 community consultations/referenda on large-scale mining activities have been conducted in Latin America challenging centralized decision-making procedures. These consultations are fostered by communities and social movements and usually supported by local governments. Around 700,000 people have participated, expressing a massive rejection of mining activities in Peru, Guatemala, Argentina, Colombia and Ecuador. Community consultations have contributed to ease local tensions temporarily, slowing down or stopping mining projects in some cases. This paper analyses the process of emergence and spread of such consultations exploring how they challenge the governance of mining activities. We claim that community consultations are being institutionalized in the context of mining conflicts in Latin America. Consultations are not isolated experiences but constitute a strategy diffused and transformed in the midst of multi-scalar social learning processes where social movements exchange strategies and discourses and a hybridising process occurs in relation to political and cultural local features. We sustain that community consultations are a hybrid institution where non-state and state actors and formal and informal institutions are mobilized. Consultations are a strategic tool of social movements and a contested emergent institution - as different state bodies support or reject their validity - that reclaim the right of affected populations and indigenous peoples to participate, in empowering forms, in high-stake decisions that affect their territories, livelihoods and future