Models with three Higgs doublets in the triplet representations of A(4) or S-4

We consider the quark sector of theories containing three scalar SU(2)(L) doublets in the triplet representation of A(4) (or S-4) and three generations of quarks in arbitrary A(4) (or S-4) representations. We show that for all possible choices of quark field representations and for all possible alignments of the Higgs vacuum expectation values that can constitute global minima of the scalar potential, it is not possible to obtain simultaneously nonvanishing quark masses and a nonvanishing CP-violating phase in the Cabibbo-Kobayashi-Maskawa quark mixing matrix. As a result, in this minimal form, models with three scalar fields in the triplet representation of A(4) or S-4 cannot be extended to the quark sector in a way consistent with experiment. DOI: 10.1103/PhysRevD.87.055010.

Representations of Portugal in Herman Hesse

The aim of my research is to answer the question: How is Portugal seen by non-Portuguese fictionists? The main reason why I chose this research line is the following: Portuguese essayists like Eduardo Lourenço and José Gil (2005) focus their attention on the image or representation of Portugal as conceived by the Portuguese; indeed there is a tendency in Portuguese cultural studies (and, to a certain extent, also in Portuguese philosophical studies) to focus on studying the so-called ‗portugalidade‘ (portugueseness), i.e., the essence of being Portuguese. In my view, the problem with the studies I have been referring to is that everything is self-referential, and if ‗portugueseness‘ is an issue, then it might be useful, when dealing with it, to separate subject from object of observation. That is the reason why we, in the CEI (Centro de Estudos Interculturais), decided to start this research line, which is an inversion in the current tendency of the studies about ‗portugueseness‘: instead of studying the image or representation of Portugal by the Portuguese, my task is to study the image or representation of Portugal by the non-Portuguese, in this case, in non-Portuguese fiction. For the present paper I selected three writers of the 20th century: the German Hermann Hesse and the North-Americans Philip Roth and Paul Auster

On the issue of representations

This paper aims at revisiting the concept of ‗representation‘, in order to discuss matters like truth value and the cultural and ideological importance of representations.

Changing representations and practices in school mathematics: the case of Modern Math in Portugal

The curricular movement known as Modern Mathematics aimed at the transformation of representations and practices in school mathematics. Its study provides us with ways of understanding how these changes came about. The purpose of this paper is to contribute to the understanding of the ways in which representations of school mathematics gradually were influenced by ideas from the Modern Mathematics movement, how these new ideas merged into local educational traditions, and how they were transformed into meaningful practice. This work is centred on the Portuguese context from the middle 1950s to the middle 1960s, and builds on Chervel’s notion of school culture and Gruzinski’s discussion of connected histories.

O fascínio da presença: linguagem e discurso na "Logique de la philosophie" de Eric Weil

Eric Weil nasceu em 1904, na Alemanha, e faleceu em 1977, em Nice. Em 1928, defendeu a sua Dissertação de Licenciatura intitulada Das Pietro Pomponazzi Lehre von dem Menschen und der Welt, sob orientação de Emst Cassirer. Oriundo de uma família judia, é forçado a partir para França em 1932, adoptando a nacionalidade francesa em 1938. Durante a Guerra é feito prisioneiro e permanece intemado num campo de concentração durante cerca de cinco anos, acontecimento que tem decerto o seu peso no optimismo que perpassa a sua filosofia. Profundo conhecedor da obra de Hegel, mas também das de Kant e de Aristóteles, fez parte do grupo do Seminário de Alexandre Kojève e fundou, com Georges Bataille, a revista Critique. Professor em Lille, a partir de 1956, e em Nice, desde 1969, foi eleito membro da Académie des Sciences Morales et Polidques em 1976.

Formas graves da síndrome de Weil

São apresentados 6 casos graves da síndrome de Weil. Especial atenção é dada aos 2 primeiros pacientes, desde que em ambos houve confusão inicialmente com quadros abdominais agudos de caráter cirúrgico ao lado de quadro de choque no início da sintomatologia. Um deles apresentou posteriormente na evolução hemorragia digestiva fulminante e incoercível responsável pela evolução fatal. Nos 4 restantes o quadro clínico foi dominado pela icterícia geralmente severa, insuficiência renal aguda, manifestações neuropsíquicas, necessitando todos êles terapêutica pela diálise peritoneal, ao lado de outros recursos terapêuticos que poderão ser usados nestas formas graves. Atenção também é despertada no sentido de enquadramento sistemático das leptospiroses no diagnóstico diferencial das icterícias, desde que são freqüentes entre nós.

Doença de Weil com uremia prolongada

Um caso de síndrome de Weil de evolução incomum é relatado, no qual o período azotêmico perdurou por cêrca de oito semanas. O curso clínico foi pontilhado por inúmeras e severas complicações, tendo o paciente permanecido internado por mais de cem dias. Não obstante a gravidade que a moléstia assumiu, houve recuperação clinica integral e restituição total da função renal. De passagem, os autores analisam as lesões e o comprometimento funcional dos rins na leptospirose.

Studying urban space and literary representations using GIS: Lisbon, Portugal, 1852-2009

This article proposes a methodology to address the urban evolutionary process, demonstrating how it is reflected in literature. It focuses on “literary space,” presented as a territory defined by the period setting or as evoked by the characters, which can be georeferenced and drawn on a map. It identifies the different locations of literary space in relation to urban development and the economic, political, and social context of the city. We suggest a new approach for mapping a relatively comprehensive body of literature by combining literary criticism, urban history, and geographic information systems (GIS). The home-range concept, used in animal ecology, has been adapted to reveal the size and location of literary space. This interdisciplinary methodology is applied in a case study to nineteenth- and twentieth-century novels involving the city of Lisbon. The developing concepts of cumulative literary space and common literary space introduce size calculations in addition to location and structure, previously developed by other researchers. Sequential and overlapping analyses of literary space throughout time have the advantage of presenting comparable and repeatable results for other researchers using a different body of literary works or studying another city. Results show how city changes shaped perceptions of the urban space as it was lived and experienced. A small core area, correspondent to a part of the city center, persists as literary space in all the novels analyzed. Furthermore, the literary space does not match the urban evolution. There is a time lag for embedding new urbanized areas in the imagined literary scenario.

Linguageme discurso. Uma hipôtese hermenêutica sobre a Filosofia de Eric Weil

Dissertação de Doutoramento em Filosofia, especialidade Filosofia Geral

Native american women in sherman Alexie's short stories: stereotypical representations

Dissertação apresentada para cumprimento dos requisitos necessários à obtenção do grau de Mestre em Línguas, Literaturas e Culturas

Language and culture: representations of English-speaking cultures in 1st year secondary english language coursebooks in the Kingdom of Saudi Arabia

Dissertação apresentada para o cumprimento dos requisitos necessários á obtenção do grau de Mestre em Didáctica de Inglês

Maternal attachment representations in relation to emotional availability and discipline behaviour

"Published online: 15 Sep 2015."

Learning joint representations for order and timing of perceptual-motor sequences: a dynamic neural field approach

Many of our everyday tasks require the control of the serial order and the timing of component actions. Using the dynamic neural field (DNF) framework, we address the learning of representations that support the performance of precisely time action sequences. In continuation of previous modeling work and robotics implementations, we ask specifically the question how feedback about executed actions might be used by the learning system to fine tune a joint memory representation of the ordinal and the temporal structure which has been initially acquired by observation. The perceptual memory is represented by a self-stabilized, multi-bump activity pattern of neurons encoding instances of a sensory event (e.g., color, position or pitch) which guides sequence learning. The strength of the population representation of each event is a function of elapsed time since sequence onset. We propose and test in simulations a simple learning rule that detects a mismatch between the expected and realized timing of events and adapts the activation strengths in order to compensate for the movement time needed to achieve the desired effect. The simulation results show that the effector-specific memory representation can be robustly recalled. We discuss the impact of the fast, activation-based learning that the DNF framework provides for robotics applications.

Intervention program on adolescent’s creativity representations and academic motivation

Creativity and its promotion are widespread concerns in education. However, few efforts have been made to implement intervention programs designed to promote creativity and other related aspects (e.g., academic motivation). The Future Problem Solving Program International (FPSPI), aimed for training creativity representations and creative problem solving skills in young people, has been one of the most implemented programs. This intervention’s materials and activities were adapted for Portuguese students, and a longitudinal study was conducted. The program was implemented during four months, in weekly sessions, by thirteen teachers. Teachers received previous training for the program and during the program’s implementation. Intervention participants included 77 Basic and Secondary Education students, and control participants included 78 equivalent students. Pretest-posttest measures of academic motivation and creativity representations were collected. Results suggest a significant increase, in the intervention group, in motivation and the appropriate representations of creativity. Practical implications and future research perspectives are presented.