In this work, the pronominal reduplication is interpreted as an agreement of the verb with the object by means of a clitic. In this way, the object resembles the subject, which agrees with the verb by means of an affix. However, while the subject agreement is absolutely regular, the agreement of the object, or reduplication, is conditioned by diverse factors. These factors are the main object of investigation in this work. The reinterpretation of the object clitics as agreement markers is the consequence of their grammaticalization from the original character of unstressed personal pronouns towards the character of verbal affixes. The dative clitics are rather further in this process than the accusative clitics - they conserve less pronominal features, and also the reduplication of the indirect object is much more frequent than the reduplication of direct object. This is related to the fact that the indirect object is by its nature closer to the subject, therefore it favours more the regular agreement with the predicate. Key words: pronominal reduplication, clitic doubling, object pronouns, clitics, direct object, indirect object, spanish syntax

Die Erfoschung informationsstruktureller Ausdrucksformen hat in den letzten Jahrzehnten stark an Bedeutung gewonnen. Der Schwerpunkt liegt dabei auf der Untersuchung von Universalien, die der Kennzeichnung von “alten/bekannten” und “neuen/wichtigen” Informationen dienen. Auch wenn die Forschung diesem Thema bereits viel Raum gegeben hat, weiß man heute immer noch sehr wenig über die Realisierungsmöglichkeiten von Topik und Fokus in schlecht dokumentierten Sprachen. Die vorliegende Dissertation leistet mit der Diskussion über die Fokusmarkierungsstrategien einer kleinen Sprachfamilie im Herzen Afrikas einen wichtigen Beitrag zur informationsstrukturellen Grundlagenforschung. Sie gibt einen Überblick über die Realisierungsmöglichkeiten von Topik und Fokus in sechs genealogisch verwandten Sprachen der Sara-Bagirmi-Gruppe (BAGIRMI, KENGA, MBAY, KABBA, NGAMBAY und SAR) und konzentriert sich dabei auf die Untersuchung der prädikatszentrierten Fokustypen. Diese bestehen aus i) Fokus auf der lexikalischen Bedeutung des Verbes, ii) Fokus auf dem Polaritätsoperator („Verum-Fokus“) und iii) Fokus auf dem Tempus-Aspekt-Modus-Operator. Die Arbeit beleuchtet somit nicht nur die grammatische Stuktur unzureichend untersuchter Sprachen, sie liefert mit dem Schwerpunkt auf Nichttermfokus auch Einblick in ein vernachlässigtes Forschungsfeld. Die Untersuchungen im Rahmen der Dissertation zeigen, dass die Sara-Bagirmi-Sprachen eine Vielzahl verschiedener Fokussierungsstrategien aufweisen. Obwohl alle sechs Sprachen zu einer Familie gehören, unterscheiden sich die vorhandenen Strategien formal und teilweise auch funktional voneinander. Der innerfamiliäre Vergleich der Gemeinsamkeiten und der Unterschiede erlaubt zum einen Rückschlüsse auf die Beziehung zwischen Form und Funktion im Allgemeinen. Zum anderen ermöglicht er konkrete Aussagen zur diachronen Entwicklung der ausgewählten Konstruktionen. Die Korpusstudie zu einer der Sprachen ergänzt die Forschungsarbeit. Sie stellt ausgewählte Merkmale der Fokusrealisierung vor und zeigt den Gebrauch der präsentierten Strategien im natürlichen Diskurs. Die vorliegende Dissertation komplettiert die Datenbasis der empirischen Sprachforschung und bereichert mit ihren Ergebnissen die Sprachtheorie um wertvolle Erkenntnisse. So belegt z.B. die Analyse der Fokussierungsstrategien des Sara-Bagirmi die enge Verbindung zwischen prädikatszentrierten Fokustypen und TAM-basierten Kategorien. Sie zeigt außerdem, dass die Klassifikation der prädikatszentrierten Fokustypen neu überdacht werden sollte, da einige der untersuchten Sprachen neben den o.g. Typen auch grammatikalisierte Formen von Intensivierung oder Formen von „Gewissheit“ aufweisen. / The development of information structue and its expression has become increasingly important in the recent decades. The main focus is on the investigation of linguistic universals that are used to identify “old/given” and “new/important” information. Despite of a body of literature on this issue, little is known about the possibilities of realization of topic and focus in poorly documented languages. This investigation contributes to basic informational research in the field of information on the focus marking strategies of a small language family in the heart of Africa. It gives an overview of the way in which topic and focus are implemented in six genealogically related languages of Sara-Bagirmi (BAGIRMI, KENGA, MBAY, KABBA, NGAMBAY and SAR). The focus is on the investigation of predicate-centered focus types. These consist of i) focus on the lexical meaning of the verb, ii) focus on the polarity operator (“truth-value focus”), and iii) focus on the tense-aspect-mode operator. The work thus not only illuminates the grammatical structure of insufficiently studied languages, but also provides an insight into a neglected field of research with emphazising non-term focus. The results show that the Sara-Bagirmi languages have a variety of different focus strategies. Although all six languages belong to one family, the existing strategies differ formally and partly functionally from each other. The inter-familiar comparison of the similarities and the differences allows, on the one hand, conclusions about the relationship between form and function in general. On the other hand, it makes concrete statements on the diachronic development of the selected constructions. The corpus study on one of the languages complements the research work. It presents selected features of the focus realization and shows the use of the presented strategies in natural discourse. This dissertation completes the database of empirical linguistic research and enriches the theory of language with valuable results. Thus, for example, the analysis of the focusing strategies in Sara-Bagirmi confirms the close relationship of predicate-centered focus types and TAM-based categories. It also shows that the classification of the predicate-centered focus types should be reconsidered, since some of the examined languages in addition to the abovementioned types have grammaticalized forms of “intensification” or “definiteness/ certainty”.

Neste trabalho abordaremos alguns assuntos relacionados Ãs SeÃÃes CÃnicas: elipse, parÃbola e hipÃrbole. O trabalho està dividido em cinco capÃtulos: IntroduÃÃo; Origem das CÃnicas; EquaÃÃes das CÃnicas; Propriedades de ReflexÃo das CÃnicas; Construindo CÃnicas. No segundo capÃtulo, falaremos sobre o problema da duplicaÃÃo do cubo que, segundo a HistÃria da MatemÃtica, deu origem as cÃnicas e citaremos alguns matemÃticos cujos trabalhos contribuÃram para o desenvolvimento do estudo dessas curvas. No terceiro capÃtulo, estudaremos as equaÃÃes cartesianas das cÃnicas, bem como as suas representaÃÃes grÃficas e os principais elementos da cada cÃnica. No quarto capÃtulo, apresentaremos as propriedades de reflexÃo das cÃnicas e algumas aplicaÃÃes muito interessantes dessas propriedades. No Ãltimo capÃtulo, demonstraremos alguns mÃtodos para construir cÃnicas e em seguida faremos essas construÃÃes na prÃtica atravÃs de materiais concretos e por meio de um programa de Geometria DinÃmica, chamado Geogebra. / In this paper we discuss some issues related to Conic Sections: ellipse, parabola and hyperbole. The work is divided into five chapters: Introduction; Origin of Conic Sections; Equations of Conic Sections; Reflection Properties of Conic Sections; Building Conic Sections. In the second chapter, weâll talk about doubling the cube problem that, according to the History of Mathematics, originated the conic sections and talk about some mathematicians whose work contributed to the study of these curves. In the third chapter, we will study the Cartesian equations of conic sections, as well as their graphical representations and the main elements of each curve. In the fourth chapter, we presented the reflection properties of conic sections and some very interesting applications of these properties. In the last chapter, we will show some methods to construct conic sections and then we will make these constructs in practice through concrete materials and through a dynamic geometry program, called Geogebra.

Made available in DSpace on 2016-04-28T18:22:21Z (GMT). No. of bitstreams: 1 Katia Diolina Gomes.pdf: 2373668 bytes, checksum: b5ae3a1bc2dbcdc66e6b374495df8df7 (MD5) Previous issue date: 2011-08-23 / Conselho Nacional de Desenvolvimento Científico e Tecnológico / This study aims to verify if doubling instruction procedure can bring contribution on the training of a future teacher. Doubling instruction procedure (CLOT, 2006, 2010) consists of two writing phases: instructions and comments. On the first, a fictitious situation is created for a teacher s substitution by a researcher who needs accurate information on how to behave in order to minimize the substitution act. From this interaction, teacher and researcher produce an oral text and later transcript it as co-writers. On the second, the teacher reads the instruction transcription and writes personal remarks about this reading. Since those two writings are about the teacher s work, our main goal is to learn which representations, perspectives and styles from teaching as work can be identified in those texts as well as the implications of it on the training of future teachers. To achieve that, we undertake the theoretical and methodological framework from the Social Discursive Interacionism - SDI, (BRONCKART, 1999, 2006, 2008; GROUPE LAF - Language-Action-Formation, 2004), along with the conceptions developed by ERGAPE group - Ergonomie de l Activité Personnels de l Education - (AMIGUES, 2004; SAUJAT, 2004) and by the Activity Clinic (CLOT, 2006, 2010; FAÏTA, 2005; ROGER, 2007), as it has been done by the research ALTER group(ABREU-TARDELLI, 2006; BRONCKART & MACHADO, 2004; BUENO, 2009; CORREIA, 2007; LEITE, 2009; LOUSADA, 2006; MACHADO, 2009, 2010; MAZZILLO, 2006; TOGNATO, 2009;) on teaching as work. We also conceive the studies from Functional Systemic Linguistics (HALLIDAY, 1994) as well as from Discourse Analysis (MAINGUENEAU, 2005) all of which constitutes a theoretical and methodological framework based on social, historical and cultural perspective along with philosophical, social, ideological and discursive approach of the language studies from Volochinov (1929/1999). All these theories enables an in depth representation study on the teaching work in order to bring a broad understanding about the usage possibilities and implications of the investigated procedure for the training of future teachers. Our corpora is originated from the doubling instruction procedure generated from the participation of two Portuguese language teachers: a senior teacher with twenty years of teaching experience and a junior teacher with one year of experience who is also a student majoring in language teaching attending the last year of an undergraduate program. Both of them work for elementary public schools in Jundiaí located in São Paulo countryside. Text analysis signals to general characteristics of the doubling instruction procedure, as well as the teaching representation, perspective and styles from each participant s behavior. We consider the procedure effectual since it is dialectic enabling identification and discussion about different representations of the same work which also guides us to summarize ideas and ideals on teaching as work. We also conclude that with this procedure it is possible to establish a promising dialogue in which the worker or future worker is able to contribute for the collectivity and vice-versa, strengthening generic activity basis whereas the experienced or inexperienced teachers recognize themselves in their practice enhancing their participation / O objetivo desta pesquisa é o de verificar se o procedimento de instrução ao sósia pode ou não vir a contribuir com a formação de futuros professores. A instrução ao sósia (CLOT, 2006, 2010) é um procedimento constituído por duas etapas de produção dos textos: de instruções e de comentário. Na primeira, uma situação fictícia é criada para a substituição de um professor por um pesquisador que precisa de informações precisas sobre como se comportar para minimizar o ato dessa substituição. Dessa interação, pesquisador e professor produzem, em co-autoria, um texto oral (posteriormente transcrito). Na segunda etapa, o professor, após ler o texto de instrução transcrito, escreve um comentário a respeito de suas impressões sobre o que leu. Como esses textos se configuram sobre o trabalho do professor, nosso objetivo principal é o de levantar que representações, perspectivas e estilos do ensino como trabalho podem ser identificados nesses textos e que implicações isso acarretaria na formação de futuros professores. Para isso, assumimos o quadro teórico-metodológico do Interacionismo Sociodiscursivo - ISD (BRONCKART, 1999, 2006, 2008; GROUPE LAF - Langage-Action- Formation, 2004), unindo-o às concepções desenvolvidas pelo grupo ERGAPE - Ergonomie de l Activité Personnels de l Education (AMIGUES, 2004; SAUJAT, 2004) e pela Clínica da Atividade (CLOT, 2006, 2010; FAÏTA, 2005; ROGER, 2007), conforme já vem sendo feito pelas pesquisas sobre o ensino como trabalho do Grupo ALTER (ABREU-TARDELLI, 2006; BRONCKART & MACHADO, 2004; BUENO, 2009; CORREIA, 2007; LEITE, 2009; LOUSADA, 2006; MACHADO, 2009, 2010; MAZZILLO, 2006; TOGNATO, 2009;). Também adotamos os estudos desenvolvidos pela Linguística Sistêmico-funcional (HALLIDAY, 1994) e pela Análise de Discurso (MAINGUENEAU, 2005). Apoiamo-nos, assim, em um referencial teórico-metodológico com base na perspectiva sócio-histórica e cultural, juntamente com uma abordagem filosófica, social, discursiva e ideológica da linguagem de Volochinov (1929/1999). Todas essas teorias possibilitam um estudo aprofundado sobre a representação do trabalho docente, a fim de trazer uma ampla compreensão sobre as possibilidades de uso e as implicações do procedimento investigado na formação de futuros professores. Nosso corpus é proveniente do uso do procedimento de instrução ao sósia, com a participação de duas professoras de Língua Portuguesa: uma experiente com mais de 20 anos de carreira e, a outra, iniciante, atuando na profissão há um ano e, também, graduanda do último ano do Curso de Licenciatura em Letras. Ambas trabalham em escolas públicas municipais e estaduais do ensino fundamental (EF-II) do interior paulista, mais especificamente, da região de Jundiaí. Os resultados de análise dos textos apontaram para as características gerais do procedimento de instrução, bem como as representações, perspectivas e estilos sobre o agir do professor de cada participante. Consideramos, então, o procedimento válido, já que se trata de um procedimento dialético que nos permite identificar e debater diferentes representações sobre um mesmo trabalho, levando-nos a uma síntese de ideias e ideais acerca do ensino como trabalho. Constatamos, também, que, com o procedimento, podemos estabelecer um diálogo promissor, em que trabalhador ou futuro trabalhador contribuía com seu coletivo e vice-versa, fortalecendo as bases genéricas da atividade, em que professor experiente e iniciante reconheçam-se nelas e as reconheçam ao exercerem seu ofício, aumentando, assim, seu poder de agir

<p>For the first time in the history of physics we stand in front of a theory that might actually serve as a unification of it all - string theory. It provides a self-consistent framework for gravity and quantum mechanics, which naturally incorporates matter and gauge interactions of the type seen in the standard model. Unfortunately, at the moment we do not know of any principle that selects the vacuum of the theory, so predictions about our four-dimensional world are still absent. However, the introduction of extended objects opens up an intricate new arena of physics, which is non-trivial and challenging to map out, even at a basic level.</p><p>A key concept of quantum gravity is holography; this is realised in string theory by the AdS/CFT correspondence, which relates string theory to a field theory living in a lower dimensional space. In this thesis we discuss two limits of the correspondence, namely the BMN limit, giving rise to a plane wave geometry, and the tensionless limit, exhibiting massless higher spin interactions. We also study a limit of string theory in a background electric field, where the theory is described by open strings and positively wound closed strings only.</p><p>We begin with a brief review of the theory, focusing on an intuitive understanding of the basic aspects and serving as an introduction to the papers. In the first paper we calculate, from two different points of view, scattering amplitudes in the non-commutative open string limit. In the second paper we obtain the quadratic scalar field contributions to the stress-energy tensor in the minimal bosonic higher spin gauge theory in four dimensions. In the last paper we propose a way to avoid fermion doubling when discretizing the string in the BMN limit.</p>

For the first time in the history of physics we stand in front of a theory that might actually serve as a unification of it all - string theory. It provides a self-consistent framework for gravity and quantum mechanics, which naturally incorporates matter and gauge interactions of the type seen in the standard model. Unfortunately, at the moment we do not know of any principle that selects the vacuum of the theory, so predictions about our four-dimensional world are still absent. However, the introduction of extended objects opens up an intricate new arena of physics, which is non-trivial and challenging to map out, even at a basic level. A key concept of quantum gravity is holography; this is realised in string theory by the AdS/CFT correspondence, which relates string theory to a field theory living in a lower dimensional space. In this thesis we discuss two limits of the correspondence, namely the BMN limit, giving rise to a plane wave geometry, and the tensionless limit, exhibiting massless higher spin interactions. We also study a limit of string theory in a background electric field, where the theory is described by open strings and positively wound closed strings only. We begin with a brief review of the theory, focusing on an intuitive understanding of the basic aspects and serving as an introduction to the papers. In the first paper we calculate, from two different points of view, scattering amplitudes in the non-commutative open string limit. In the second paper we obtain the quadratic scalar field contributions to the stress-energy tensor in the minimal bosonic higher spin gauge theory in four dimensions. In the last paper we propose a way to avoid fermion doubling when discretizing the string in the BMN limit.

Foundational to almost any Hitchcock film is the idea of the voyeur: the (un)natural inclination to want to look upon the private, obscene, and potentially grizzly instances in other peoples’ lives. Such inclinations are typically satiated in secret and subsequently denied as something we desire. The voyeuristic act may be connected to narcissism in that we are seduced by our own fears and inner hells projected onto the watched ‘other.’ This kind of projection not only perpetuates our sense of denial of what are our own inclinations, but it also precipitates the potential for de-humanization and feelings of emptiness in that we detach from ourselves. The phenomenological paradox to such detachment is that the more we insist we are safe and self-enclosed here while the ‘other’ remains at bay there, the more we are convinced that we know ourselves and are connected to ourselves, when arguably, we couldn’t be more detached from ourselves and our humanity. And by not really knowing ourselves as well as we thought – as we might infer from a kind of ‘doppelganger’ or ‘doubles’ reading of Strangers on a Train, for example – is how fear is born, both in a Hitchcock film and in life generally. How then, might we come to truly know or face our fear if estrangement would seem an inherent quality to our very experience of it?

Foundational to almost any Hitchcock film is the idea of the voyeur: the (un)natural inclination to want to look upon the private, obscene, and potentially grizzly instances in other peoples’ lives. Such inclinations are typically satiated in secret and subsequently denied as something we desire. The voyeuristic act may be connected to narcissism in that we are seduced by our own fears and inner hells projected onto the watched ‘other.’ This kind of projection not only perpetuates our sense of denial of what are our own inclinations, but it also precipitates the potential for de-humanization and feelings of emptiness in that we detach from ourselves. The phenomenological paradox to such detachment is that the more we insist we are safe and self-enclosed here while the ‘other’ remains at bay there, the more we are convinced that we know ourselves and are connected to ourselves, when arguably, we couldn’t be more detached from ourselves and our humanity. And by not really knowing ourselves as well as we thought – as we might infer from a kind of ‘doppelganger’ or ‘doubles’ reading of Strangers on a Train, for example – is how fear is born, both in a Hitchcock film and in life generally. How then, might we come to truly know or face our fear if estrangement would seem an inherent quality to our very experience of it?

Nous prouvons essentiellement, à partir du formalisme adopté dans les articles [Che] et [CK1], un théorème de di fférentiation de type Calderòn pour les applications des espaces de Hajlasz fondés sur des espaces métriques PI et à valeurs dans des espaces de Banach RNP. Grâce à toutes les techniques développées pour le théorème précédent, nous pouvons -par la suite- a ffaiblir la condition d'appartenance à un espace de Hajlasz surcritique (par rapport à la dimension homogène de l'espace métrique ambiant) en une condition d'intégrabilité locale sur la constante de Lipschitz ponctuelle supérieure. Nous montrons que ces théorèmes de di fférentiation entrent en jeu naturellement pour caractériser les espaces de Hajlasz fondés sur des espaces métriques PI. Ceci débouche sur des critères intégraux, dans la veine de [Br2], pour reconnaitre si des applications mesurables sont constantes ou non dans les espaces métriques PI. En fin, nous discutons certains types d'inégalités de Poincaré locales dépendant du centre et du rayon des boules. Dans ce cadre aff aibli, l'analyse menée précedemment est tout à fait possible mais sous des conditions topologiques et géométriques supplémentaires sur l'espace métrique ambiant. / In this thesis, we essentially prove the Cheeger-differentiability of some Hajlasz-Sobolev functions between PI metric spaces and RNP Banach spaces. Then, we prove a refinement. More precisely, we establish a kind of Rademacher-Stepanov Theorem in the same setting as above but under the simple condition that the upper lipschitz constant is in a Lp space. Then, all these differentiation Theorems are naturally used to give a precise and complete description of the Hajlasz-Sobolev spaces on PI metric spaces in term of an energy integral. This leads to some criteria to detect if a measurable function is constant or not. At the end, we discuss some topological consequences of some weak Poincaré inequalities, we mean that depend of the center and of the radius of the balls involved in these inequalities. In this context, we are able to give some new criteria but the price to pay is to suppose strong topological assumptions on the metric space.

Orientador: Jose Raimundo de Oliveira / Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Eletrica e de Computação / Made available in DSpace on 2018-08-09T13:54:55Z (GMT). No. of bitstreams: 1 Dias_MauricioAraujo_D.pdf: 794928 bytes, checksum: a328a640d35118ea7fb606ac9f4ab2b2 (MD5) Previous issue date: 2007 / Resumo: Este trabalho propõe um sistema criptográfico para Criptografia baseada em Curvas Elípticas (ECC). ECC é usada alternativamente a outros sistemas criptográficos, como o algoritmo RSA (Rivest-Shamir-Adleman), por oferecer a menor chave e a maior segurança por bit. Ele realiza multiplicação de pontos (Q = kP) para curvas elípticas sobre corpos finitos binários. Trata-se de um criptosistema programável e configurável. Graças às propriedades do circuito programável (FPGA) é possível encontrar soluções otimizadas para diferentes curvas elípticas, corpos finitos e algoritmos. A característica principal deste criptosistema é o uso de um circuito combinacional para calcular duplicações e adições de pontos, por meio da aritmética sobre corpos finitos. Os resultados deste trabalho mostram que um programa de troca de chaves fica aproximadamente 20.483 vezes mais rápido com a ajuda do nosso sistema criptográfico. Para desenvolver este projeto, nós consideramos que o alto desempenho tem prioridade sobre a área ocupada pelos seus circuitos. Assim, nós recomendamos o uso deste circuito para os casos em que não sejam impostas restrições de área, mas seja exigido alto desempenho do sistema / Abstract: This work proposes a cryptosystem for Elliptic Curve Cryptography (ECC). ECC has been used as an alternative to other public-key cryptosystems such as the RSA (Rivest-Shamir-Adleman algorithm) by offering the smallest key size and the highest strength per bit. The cryptosystem performs point multiplication (Q = kP) for elliptic curves over binary polynomial fields (GF(2m)). This is a programmable and scalable cryptosystem. It uses the abilities of reconfigurable hardware (FPGA) to make possible optimized circuitry solutions for different elliptic curves, finite fields and algorithms. The main feature of this cryptosystem is the use of a combinatorial circuit to calculate point doublings and point additions, through finite field arithmetic. The results of this work show that the execution of a key-exchange program is, approximately, 20,483 times faster with the help of our cryptosystem. To develop this project we considered that high-performance has priority over area occupied by its circuit. Thus, we recommend the use of this circuit in the cases for which no area constraints are imposed but high performance systems are required. / Doutorado / Engenharia de Computação / Doutor em Engenharia Elétrica