Bipartite stable Poisson graphs on R

Let red and blue points be distributed on $\mathbb{R}$ according to two independent Poisson processes $\mathcal{R}$ and $\mathcal{B}$ and let each red (blue) point independently be equipped with a random number of half-edges according to a probability distribution $\nu$ ($\mu$). We consider translation-invariant bipartite random graphs with vertex classes defined by the point sets of $\mathcal{R}$ and $\mathcal{B}$, respectively, generated by a scheme based on the Gale-Shapley stable marriage for perfectly matching the half-edges. Our main result is that, when all vertices have degree 2 almost surely, then the resulting graph does not contain an infinite component. The two-color model is hence qualitatively different from the one-color model, where Deijfen, Holroyd and Peres have given strong evidence that there is an infinite component. We also present simulation results for other degree distributions

Communication, Literacy and Citizenship: a conceptual orientation in a portuguese children’s television thematic channel, K SIC

This paper highlights the consequential nature of communication, literacy and citizenship and the meta-pattern that connects everything together – the ecology of the human spirit. It argues that, just like human communication, literacy is consequential in nature for humankind. Through each of our different worlds of experience and processes of communication, we manifest both of these human conditions and co-construct everyday practices that engender a plurality of effects. Literacy is a concept common to all humankind. Thus, it forms an indivisible whole with communication. This viewpoint is at odds with that which confines literacy to being understood as the acquisition of certain competences. It is arguable that, just like communication, the human condition of literacy needs to be both encouraged and developed. We suggest here that the idea of borders in literacy should be questioned. The work of Gregory Bateson on the ecology of the human spirit – an imminent characteristic of the human species that is based on the physiological structure of the living being and is in permanent interaction and reconnection with both the biosphere and our ways of seeing the world – supports the viewpoint put forward here. From the communication mediatised by a children’s television channel, from SIC K and from the results of studies carried out into children’s use of television we draw the examples that shall illustrate the theoretical approach taken here. They also underpin two premises of an ongoing project. Firstly, television is part of the solution in that it encourages and develops communication-literacy- citizenship-education-connectivity. Secondly, human rights form a shared platform from which to orient the use of Technologies and define connection strategies for the active participation of the children

The Aveiro charter of rights for human beings: a milestone for the second decade of the 21st century

BEING HUMAN is an extraordinary privilege. Every woman and every man that is born has something to learn and a project to build throughout their lives. Designing futures in the present and affirming what makes them BE HUMAN requires work, study and fun. Since the first decade of the 21st century, the Human Rights in Action project, by Civitas Aveiro, has helped, through its work with children, young people and teachers, to construct answers to the question: what makes us truly human? What are the effects of technologies’ in our life? The Aveiro charter of rights of the Human Being is one of the results of the 10th edition of the project developed in partnership with the University of Aveiro, with the backing of the Municipality and local Businesses. Twenty-five education and teaching institutions, from Nursery School to University, and a total of eight hundred Children and Young People, joined by around fifty teachers, from various subject areas, were involved in the development of the one hundred and twenty six rights inscribed in the Charter of Rights of the Human Being, which has been turned into an agenda for 2010. The dissemination of the charter by Civitas Aveiro aims to make a contribution in order that the citizens of the city of Aveiro, upon hearing the voices that speak out in this charter, may take steps toward making Aveiro a city blessed + dreamed with the Rights of the Human Being. The purpose of this presentation is to lay out and encourage discussion on the process of collective participation in the construction of the Charter of Rights of the Human Being, in various contexts, the methodology used and the analysis of the rights inscribed in it

From the ecology of the human spirit to the development of the orchestral theory of communication: the inclusion of the medium-message axiom

The contributions of the biologist, anthropologist and communication theorist Gregory Bateson (1904- 1980) form the nucleus of the cross-disciplinary theoretical principles which led to the founding of the web of thought spun by Watzlawick, Weakland, Beavin, Fish, Jackson, Erickson, Foster, Haley and Satir, amongst others. These authors were united by a common theoretical standpoint which foregrounded the ecology of the human spirit and saw communication as process, a system of transactional interaction. They were also similarly influenced by cybernetics, systems theory and constructivism. Energised by the clash of the ideas in their exchanges, they constructed the orchestral theory of communication, formalised by Paul Watzlawick, Donald Jackson and Janet Beavin. Today, Watzlawick (1967) is regarded as a seminal publication in the annals of interpersonal communication studies. Moving beyond the confines of the original object of study – face-to-face communication – this theory has been increasingly applied to the analysis of institutionally mediated communication and to the understanding of the construction of learning and change in organisations. However, in current circumstances, its set of axiomatic principles would benefit from the inclusion of a medium-message axiom to allow a fuller understanding of the realities of the mediated communication process that the process contains. This paper proposes the inclusion of this new axiom, medium-message; a proposal which is based on the work of Gregory Bateson, the ecology of the human spirit, the orchestral theory of communication and the thinking of the Media Ecology Association. It aims to help build a more profound insight into the realities of the process of human communication

Responses of CYP450 dependent system to aliphatic and aromatic hydrocarbons body burden in transplanted mussels from South coast of Portugal

Mussels Mytilus galloprovincialis were cross-transplanted at South Portugal from a reference site (site 1) to a site more contaminated with hydrocarbon compounds (site 2), and vice versa, in an active biomonitoring (ABM) concept, to assess the biotransformation capacity catalyzed by the mixed function oxygenase (MFO) system. Total alkanes (TAlk), the unresolved complex mixture (UCM), and total polycyclic aromatic hydrocarbons (TPAHs) concentration increased respectively 6, 4.4 and 4.2 fold relatively to control, in mussels transplanted from site 1 to 2. In the cross-transplant, a 48, 57 and 62% depuration of TAlk, UCM and TPAHs concentrations occurred by the end of the 3-4th week. Petrogenic and biogenic (marine and terrigenous) sources of AHs, and petrogenic and pyrolitic (biomass and oil/fuel incomplete combustion) sources of PAHs were detected at both sites. CYP450, CYT b (5) and NADPH-RED in mussels transplanted from site 1 to 2 were induced from day 0 to 28, with a total increase of 35, 32 and 35%, respectively, while biochemical equilibrium to lesser environmental contamination occurs in mussels transplanted from site 2 to 1. A significant relationship between CYP450 and NADPH-RED was found with TPAH, with distinctive behavior at the two sites. MFO system components increase with exposure time at one site and decreases in the other, reflecting an adaptation to distinct environmental hydrocarbon loads. The ABM strategy proved to be useful to understand the environment real impact on the biochemical responses in mussels' local populations. In this study, CYP450 and NADPH-RED are a useful biomarker for hydrocarbon exposure.FCT: PRAXIS XXI/BD/3740/94info:eu-repo/semantics/publishedVersio

As lideranças e a diferenciação curricular inclusiva: que caminhos para a escola do século XXI?

EntretextosCom este artigo pretende-se analisar num primeiro momento, o conceito de diferenciação curricular no plano conceptual e dentro de um quadro de análise que permita aprofundar e clarificar o seu sentido no contexto da escola para todos e no enquadramento da massificação da escolarização, fazendo referência à globalização a qual traz novos aspectos para o debate em torno da finalidade da escola. Analisa-se num segundo momento, o papel da liderança democrática e participativa no desempenho do binómio curricular (currículo nacional e projectos curriculares) na medida em que a articulação entre níveis centrais e de escola para o desenvolvimento da diferenciação curricular inclusiva se constitui como meta indispensável para algo assim. Considera-se nesta perspectiva a liderança propulsora da diferenciação curricular inclusiva na dimensão da praxis curricular das escolas e dos professores. Por último relaciona-se esta problemática com a perspectiva da teoria crítica no quadro de escolas entendidas como boas escolas.With this article, we firstly want to analyze the concept of curricular differentiation in the conceptual (plane) level and within a framework of analysis which enables to deepen and clarify its meaning in the context of school for everyone and within the delimitation of schooling mass spreading, making references to globalization which brings new aspects to the debate about the aim of schooling. Secondly, we analyse the role (part) of the participative and democratic leadership within the fulfilment of the curricular binomial (national curriculum and curricular projects) as far as the articulation between central and school levels for the development of the inclusive curricular differentiation is a desirable goal to be reached and shared (a reality shared) by the educative community. We consider in that perspective the propellent active? Influential? Leadership of the inclusive curricular differentiation within the dimension of the schools and teachers curricular praxis. At last we relate (relationate) this problematic with the perspective of critical theory within the context of schools (named) identified as good schools

Políticas de segurança na administração local

Entrevista sobre "Políticas de Segurança na Administração Local", em Actualidade na Revista Interface - Administração PúblicaA segurança de Sistemas de Informação é um aspecto crítico para a maioria das organizações. Face à sua dependência relativamente à informação, ao desenvolvimento das tecnologias de informação e à utilização massiva da internet e dos serviços que lhe estão associados, o número de ataques a que a informação está sujeita é cada vez mais elevado, pelo que a necessidade de proteger os sistemas de informação torna-se premente