Made available in DSpace on 2014-10-09T12:53:07Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T13:59:04Z (GMT). No. of bitstreams: 0 / Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) / Uma nova metodologia para a medida absoluta da fração efetiva de nêutrons atrasados βeff, baseada em técnicas de análise de ruído microscópico e no modelo de Duas- Regiões, foi desenvolvida no reator IPEN/MB-01. Diferentemente das demais técnicas, tais como o Método de Bennet Modificado, o Método do Número de Nelson e o Método da fonte de 252Cf, a principal vantagem da metodologia proposta é a obtenção de βeff de um modo puramente experimental, sem a necessidade de quaisquer outros parâmetros, sejam estes calculados ou provenientes de outros experimentos. Com a finalidade de validar este novo método, uma série de experimentos Rossi-α e Feynman-α foram realizados no reator IPEN/MB-01. De acordo com a metodologia proposta, βeff foi estimado com uma incerteza de 0.67%, a qual atende aos requisitos de precisão almejados. Além disso, o tempo de geração de nêutrons prontos , dentre outros parâmetros, também foi obtido experimentalmente via esta metodologia. Em geral, os parâmetros medidos estão em acordo com resultados provenientes de experimentos de análise de ruído macroscópico. Nas comparações teoria-experimento, os valores de βeff medidos neste trabalho mostram que a biblioteca JENDL3.3 apresenta a melhor performance (dentro de 1%). Esta concordância justifica a redução no yield de fissão do 235U proposta por Sakurai e Okajima. / Tese (Doutoramento) / IPEN/T / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP / FAPESP:03/01261-0

More than half a decade of X-ray astronomy with various balloon borne and space orbiting X-ray instruments, have led to discoveries and detailed studies of X-ray binaries. An important property of X-ray binaries is intensity variations of different magnitudes in a wide range of timescales from milliseconds (quasi-periodic oscillations, millisecond pulsations), to a few weeks (orbital and super-orbital modulations) or longer (outbursts etc). In this thesis, different types of variabilities of X-ray binaries are considered in X-ray binary population studies and to investigate certain aspects of some individual systems. In Chapter 1, we provide an introduction to various types of variabilities seen in different classes of X-ray binaries. We mention in detail the various periodic and aperiodic variabilities seen in X-ray binaries. In Chapter 2, we describe, in some detail, the various X-ray all sky monitors and X-ray observatories, data from which has been utilized in the work carried out in this thesis. We also describe the various data analysis techniques that we have used. The rest of the thesis is divided into two major sections: Variability studies of indi-vidual systems and X-ray binary population studies Variability studies of individual systems In Chapter 3, we report results from an investigation of energy resolved orbital in-tensity pro les and from exhaustive orbital phase resolved spectroscopic measurements of GX 301{2 with MAXI{GSC . The orbital variation of the spectral parameters, es-pecially the relation between the equivalent width of Fe line and the column density of absorbing matter are then utilized to examine the models for the mode of accretion onto the neutron star in GX 301{2: circumstellar disk model by Pravdo & Ghosh (2001), and the accretion stream model by Leahy & Kostka (2008). A very large equivalent width of the iron line along with a small value of the column density in the orbital phase range 0.10-0.30 after the periastron passage indicates an asymmetry in the distribution of the matter around the neutron star, strongly favoring the accretion stream model by Leahy & Kostka (2008). Presence of an eclipse in an X-ray binary can be useful in determining orbital param-eters like inclination and in estimating the orbital evolution by eclipse timing method, which is reported in Chapter 4. For the HMXB system IGR J16393{4643, we found a short eclipse in the Swift{BAT light-curve and utilized it to constrain the orbital in-clination of the system. We have also studied, for the rst time, broad-band pulsation and spectral characteristic of the system with a Suzaku observation, showing sub-orbital intensity variations. For another eclipsing and non-pulsing HMXB 4U 1700{37, the orbital evolution is studied using mid-eclipse times from observations with narrow eld instruments as well as from long term light-curves of X-ray all sky monitors. The orbital period decay rate is estimated to be 5 10 7 /yr, an order slower than a previous measurement by Rubin et al.(1996). Since no pulsations are detected in this system, it is difficult to estimate its orbital parameters, especially its eccentricity. Using mid-eclipse times from 10 years of Swift{BAT data, we have independently constrained the eccentricity of the binary system. X-ray binary population studies In Chapter 5, we report results from an analysis of the 16 years light-curves of X-ray binaries in 2-10 keV energy band of RXTE{ASM , used to construct the differential and integral probability distributions of count-rates. These distributions are then employed to construct multiple snapshots of X-ray binary luminosity functions of the Milky Way instead of averaging the luminosities, an improvement over previous analysis by Grimm et al. (2002). We found that the averaged luminosities of highly variable X-ray binaries do not represent their true positions in XLFs and the variability of X-ray binaries do indeed signi cantly affect the luminosity functions. In Chapter 6, the measurements of the averaged spectra of X-ray binaries using MAXI{GSC data are reported and are used for constructing the composite X-ray spec-trum. These composite X-ray binary spectra are useful in estimating the contribution of X-ray binaries in extra-galactic SEDs constructed from the simultaneous Chandra / XMM{Newton and NuSTAR observations of these galaxies. These SEDs will also serve as a useful input in estimating the contribution of X-ray binary heating at high redshift IGM during the Epoch of Re-ionization. In Chapter 7, we summarize the main conclusions of the work carried out in this thesis and discuss some future prospects related to this thesis.

Vårt examensarbete är ett konstnärligt forskningsprojekt som omfattar en inventering på över hundra torn från det medeltida Bologna samt en studie i hur torn som typologi förändras och transformeras beroende på kontext. Avsikten med vår studie är att skapa djupare förståelse för de historiska tornen i Bologna samt diskutera frågan om typologi som designmetod. Genom vårt historiska researcharbete besvarar vi frågor om varför tornen byggdes och varför de revs, hur de såg ut samt hur många de var. I diskussionen belyser vi frågan om torn som symbol och landmärke samt torns värde för stadsbilden som helhet under historiens gång. Projektet undersöker även torn som artefakt, där vi ser typologi som en metod för design. Vi tar stöd från Aldo Rossis Teatro del Mondo och utvecklar idén om ett klassiskt torn som tänjer sina egna gränser, omvandlas och anpassas för att bli specifikt i olika sammanhang i den moderna staden. Alla tornomvandlingar som gör är spekulativa och skall förstås som tydligt avläsbara reaktioner på platsens karaktär. På så sätt ämnar vi inte lösa specifika problem utan studera ett teorietiskt problem genom att problematisera, agera och analysera. / Our thesis is a research based project that includes an inventory of over one hundred towers of medieval Bologna and a study in the tower typology, how it change and transforms depending on the context. The purpose of our study is to create a deeper understanding of the historical towers of Bologna and discuss the issue of typology as a method for design. Through our historical research, we answer questions about why the towers were built, why they disappeared, what they looked like and how many they were. In the discussion, we highlight the issue of tower as a symbol and landmark and tractor value to the townscape as a whole throughout history. The project also examines the towers as an artifact, which we see typology as a method for design. We take support from Aldo Rossi's ideas realized in Teatro del Mondo and develop the idea of a classic tower that pushes its own boundaries, transforms and adapts to become specific in different contexts in the modern city. All tower transformations we are suggesting are speculative and should be understood as reactions of their specific environment. We do not intent to solve a specific problem but study a theoretical problem by questioning, acting and analyzing.

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Uma nova metodologia para a medida absoluta da fração efetiva de nêutrons atrasados βeff, baseada em técnicas de análise de ruído microscópico e no modelo de Duas- Regiões, foi desenvolvida no reator IPEN/MB-01. Diferentemente das demais técnicas, tais como o Método de Bennet Modificado, o Método do Número de Nelson e o Método da fonte de 252Cf, a principal vantagem da metodologia proposta é a obtenção de βeff de um modo puramente experimental, sem a necessidade de quaisquer outros parâmetros, sejam estes calculados ou provenientes de outros experimentos. Com a finalidade de validar este novo método, uma série de experimentos Rossi-α e Feynman-α foram realizados no reator IPEN/MB-01. De acordo com a metodologia proposta, βeff foi estimado com uma incerteza de 0.67%, a qual atende aos requisitos de precisão almejados. Além disso, o tempo de geração de nêutrons prontos , dentre outros parâmetros, também foi obtido experimentalmente via esta metodologia. Em geral, os parâmetros medidos estão em acordo com resultados provenientes de experimentos de análise de ruído macroscópico. Nas comparações teoria-experimento, os valores de βeff medidos neste trabalho mostram que a biblioteca JENDL3.3 apresenta a melhor performance (dentro de 1%). Esta concordância justifica a redução no yield de fissão do 235U proposta por Sakurai e Okajima. / A new method for absolute measurement of the effective delayed neutron fraction, βeff , based on microscopic noise experiments and the Two-Region Model was developed at the IPEN/MB-01 Research Reactor facility. In contrast with other techniques like the Modified Bennet Method, Nelson-Number Method and 252Cf-Source Method, the main advantage of this new methodology is to obtain the effective delayed neutron parameters in a purely experimental way, eliminating all parameters that are difficult to measure or calculate. In this way, Rossi-α and Feynman-α experiments for validation of this method were performed at the IPEN/MB-01 facility, and adopting the present approach, βeff was measured with a 0.67% uncertainty. In addition, the prompt neutron generation time, , and other parameters were also obtained in an absolute experimental way. In general, the final results agree well with values from frequency analysis experiments. The theory-experiment comparison reveals that JENDL-3.3 shows deviation for βeff lower than 1% which meets the desired accuracy for the theoretical determination of this parameter. This work supports the reduction of the 235U thermal yield as proposed by Okajima and Sakurai.

Uma nova metodologia para a medida absoluta da fração efetiva de nêutrons atrasados βeff, baseada em técnicas de análise de ruído microscópico e no modelo de Duas- Regiões, foi desenvolvida no reator IPEN/MB-01. Diferentemente das demais técnicas, tais como o Método de Bennet Modificado, o Método do Número de Nelson e o Método da fonte de 252Cf, a principal vantagem da metodologia proposta é a obtenção de βeff de um modo puramente experimental, sem a necessidade de quaisquer outros parâmetros, sejam estes calculados ou provenientes de outros experimentos. Com a finalidade de validar este novo método, uma série de experimentos Rossi-α e Feynman-α foram realizados no reator IPEN/MB-01. De acordo com a metodologia proposta, βeff foi estimado com uma incerteza de 0.67%, a qual atende aos requisitos de precisão almejados. Além disso, o tempo de geração de nêutrons prontos , dentre outros parâmetros, também foi obtido experimentalmente via esta metodologia. Em geral, os parâmetros medidos estão em acordo com resultados provenientes de experimentos de análise de ruído macroscópico. Nas comparações teoria-experimento, os valores de βeff medidos neste trabalho mostram que a biblioteca JENDL3.3 apresenta a melhor performance (dentro de 1%). Esta concordância justifica a redução no yield de fissão do 235U proposta por Sakurai e Okajima. / A new method for absolute measurement of the effective delayed neutron fraction, βeff , based on microscopic noise experiments and the Two-Region Model was developed at the IPEN/MB-01 Research Reactor facility. In contrast with other techniques like the Modified Bennet Method, Nelson-Number Method and 252Cf-Source Method, the main advantage of this new methodology is to obtain the effective delayed neutron parameters in a purely experimental way, eliminating all parameters that are difficult to measure or calculate. In this way, Rossi-α and Feynman-α experiments for validation of this method were performed at the IPEN/MB-01 facility, and adopting the present approach, βeff was measured with a 0.67% uncertainty. In addition, the prompt neutron generation time, , and other parameters were also obtained in an absolute experimental way. In general, the final results agree well with values from frequency analysis experiments. The theory-experiment comparison reveals that JENDL-3.3 shows deviation for βeff lower than 1% which meets the desired accuracy for the theoretical determination of this parameter. This work supports the reduction of the 235U thermal yield as proposed by Okajima and Sakurai.

The aim of this essay is to analyze the implementation process of the International Baccalaureate’s Diploma Programme in four of the approximately 30 schools currently offering the IB at upper secondary level in Sweden. The starting point is a comparison between definitions in fundamental documents in the national programmes for Natural Science (NV) and Social Science (SP) on the one hand, and the IBDP on the other. The evaluation, based on Program theory, focuses in particular on the consistencies in the Organizational plans of each system.  The basic assumption is that the IB due to a deviating organizational system, different structures, aims and objectives makes a challenge for the dominating educational discourse, to use a concept by Michel Foucault, and that resistance against the IB therefore is to be expected. As a second part of the evaluation five people who either play, or have played the role of coordinators of the IB, and who thereby are responsible for the implementation, have been interviewed. The questions have been focused around in what sense the informants can confirm resistance in their implementation work due to the differences found in the first part of the evaluation, and in what ways it manifests itself. Finally, Michel Foucault’s power structures in connection to discourse analysis have been applied on the results of the two previous parts of the essay. Foucault claims a school to be one of the state institutions acting on its behalf in conserving and defending its discourse against outside enemies. Two configurations of power are according to Foucault used in the defence; ‘marginalization’ and ‘normalization’. The result of the study confirms evidence of both power structures being found in the implementation of the IB in the four schools included in the analysis and that the resistance against the IB in these schools can be interpreted accordingly. / Syftet med den här uppsatsen är att analysera implementeringen av International Baccalaureate Diploma Programme (IBDP) i fyra av det 30-talet gymnasieskolor som för närvarande erbjuder utbildingen i Sverige. Utvärderingen är indelad i två delar baserad på ’programteori’, och fokuserar på delar i respektive utbildnings organisationsplan.  Den första delen har sin utgångspunkt i styrdokument i respektive utbildning och utgör en jämförelse av olika grundläggande definitioner för, å ena sidan de nationella Naturvetenskapsprogrammet (NV) och Samhällsprogrammet (SP), och å andra sidan IBDP. Detta är av relevans för att IB-utbildningen skiljer sig tillräckligt mycket från de nationella programmen för att utgöra en utmaning av det nationella systemet, det som Michel Foucault skulle kalla den dominerande diskursen. Den andra delen består av fem intervjuer med nuvarande eller före detta coordinatorer, de personer som ansvarar för implementeringsarbetet på de enskilda skolorna. Här är frågorna fokuserade runt de områden där implementeringsarbetet antas vara svårast utifrån de skillnader som framkommer i den första delen av utvärderingen. Slutligen används de maktbegrepp som Foucault anger i sin diskursanalys på de två första delarna av arbetet. Foucault hävdar att skolan är en av de institutioner som agerar för att bevara och försvara en stats diskurs mot utomstående makter. Enlig Foucault uttrycks detta i två maktkonfigurationer; ‘marginalisering’ och ‘normalisering’. Resultatet av studien visar att det finns tecken på att båda maktmedel i implementering av IB på de fyra aktuella skolorna och att motståndet mot IB går att förstå enligt denna modell.

La Valle d'Aosta, pur non avendo grandi superfici destinate alla viticoltura, è caratterizzata dalla presenza di un ricco patrimonio ampelografico di cui fanno parte dodici varietà autoctone a bacca rossa: Bonda, Cornalin, Crovassa, Fumin, Mayolet, Ner d'Ala, Petit rouge, Premetta, Roussin, Roussin de Morgex, Vien de Nus e Vuillermin. Malgrado i numerosi vitigni menzionati, nella produzione dei vini a D.O.C troviamo in prevalenza il Petit rouge e poche altre varietà che, nell'insieme, rappresentano circa il 34% della produzione totale. Al fine di implementare la presenza di prodotti tipici che esprimano i caratteri distintivi della zona di provenienza sono state approfondite le conoscenze dei vitigni autoctoni per evidenziarne le attitudini e le potenzialità per la produzione di vini rossi di qualità. Allo stesso scopo sono stati valutati gli effetti dell'applicazione di alcune tecniche di vinificazione alternative sull'espressione dei caratteri qualitativi del Petit rouge, le cui uve sono da tempo vinificate in purezza o in assemblaggi nella produzione di vini a D.O.C. / Aosta Valley has a little viticulture surface and it is characterised by a rich ampelographic collection including the following twelve red grape autochthonous varieties: Bonda, Cornalin, Crovassa, Fumin, Mayolet, Ner d'Ala, Petit rouge, Premetta, Roussin, Roussin de Morgex, Vien de Nus e Vuillermin. Only the 34% of the D.O.C. wine production is represented by some of the above mentioned cultivars, in particular the Petit Rouge, despite of the huge number of cultivars. The Petit rouge is used in purity or in miscellaneous in the D.O.C. wine production. In order to implement the presence of typical products, this study was carried out to evaluate the aptitude of Aosta Valley ancient grapes to produce quality red wines. Moreover to improve quality of the most diffused Aosta Valley red wine the effects of some alternative winemaking were evaluated on the Petit rouge characters.

Orientador: Jose Mario Ortiz Ramos / Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Filosofia e Ciencias Humanas / Made available in DSpace on 2018-08-05T02:03:24Z (GMT). No. of bitstreams: 1 CarranzaDavila_BrendaMaribel_D.pdf: 6546087 bytes, checksum: 1d35b7caf98bfd9ed1e160b3356bfde4 (MD5) Previous issue date: 2005 / Resumo: Esta pesquisa propõe-se a demonstrar como uma terceira onda de recatolização brasileira está sendo constituída, liderada por uma nova face da Renovação Carismática Católica: o catolicismomidiático, cujo emblema é o fenômeno Pe. Marcelo Rossi. O estudo identifica as mutações culturais que alavancam a consolidação dessa recatolização, suas semelhanças com o neopentecostalismo protestante e os conflitos intra-eclesiais gerados por essa ofensiva de reinstitucionalização, inspirada e legitimada no pontificado de João Paulo II. Alerta-se, também, para os traços ¿neointegristas¿ e ¿exculturados¿ que tendem a redesenhar outra fase do catolicismo, a qual vem fermentando nos últimos trinta anos. No âmago dessa discussão, encontram-se os dilemas e os paradoxos que emergem na relação histórica entre a Igreja e a modernidade, quando a primeira apropria-se da cultura midiática, através do uso religioso dos meios de comunicação de massa, no afã de adaptar-se aos sinais dos tempos. A tese consta de três partes: a primeira captura as interfaces da vertiginosa ascensão do jovem sacerdote com a cultura de consumo; a segunda esboça os traços do catolicismo midiático e a maneira como ele configura imaginários, subjetividades e sociabilidades religiosas, veiculando-as na rádio, televisão, internet e cinema, além de analisar os desdobramentos sociais dessas práticas pastorais; e a terceira aproxima o leitor à dinâmica interna de uma instituição milenar, experiente na arte de gerenciar diferenças, negociar hegemonias e de manter um equilíbrio sistêmico. No seu conjunto, esta reflexão ambiciona sugerir a relevância do fenômeno religioso na sociedade contemporânea / Abstract: This research seeks to demonstrate how a third way of the Brazilian re-catholicizing is being constructed under the leadership of a new face of the Catholic Charismatic Renovation: the Media-Catholicism, whose emblem is the priest Marcelo Rossi¿s phenomenon. The study identifies the cultural changes that leverage the consolidation of the current re-catholicizing process. Also, it identifies the similarities with the Protestant Neo-Pentecostalism and the intra-Catholic Church conflicts ¿the last one created by the re-institutionalization effort inspired and legitimated during John Paul II pontifical period. Besides, it calls the attention to the ¿neo-integrist¿ and ¿exculturated¿ traces that tend to re-design another phase of Catholicism, the one that is being leavened for the last thirty years. The dilemmas and paradoxes that emerged into the historical relation between the Catholic Church and modernity are at the center of this discussion. Particularly, when the Church, in the eager to adapt itself to the signals of the time, resorts to the media culture, making religious use of the mass means of communication. This thesis is divided in three parts: the first one captures the interfaces between the vertiginous rising of the young priest and the culture of consumption; the second, sketches the traces of the media Catholicism and the way in which it configures imageries, subjetivities and religious sociabilities, transmitting them through the radio, television, movies and the Internet ¿analyzing, as well, the social outcomes of those pastoral practices; and the third part takes the reader to the interior dynamics of a millenarian institution, well experienced in the art of managing differences, negotiating hegemonies and maintaining a systemic equilibrium. As a whole, this reflection seeks to call the attention to the importance of a religious phenomenon in the contemporary society / Doutorado / Doutor em Ciências Sociais

In this dissertation, I investigate connections between French philosophy and the theory of architecture from the mid-1960s to the early 1990s. In the mid-1960s, many architects became acutely aware of the crisis of modern architecture embodied in the failings of social housing, the routinized corporate modernism of the postwar period, and the commodification of design. They questioned the principles of the Modern Movement and emphasized the “arbitrary” nature of the relationship between form and function while turning to French structuralism, semiology, and post-structuralism for potential answers. My period of study spans from the the period of political uprisings of the 1960s to the advent of digital design in the early 1990s.To date, little in-depth research has been done on the close relation between French philosophy and architecture in this period and its role in foreshadowing postmodern developments. My dissertation addresses this gap by presenting case studies of the theoretical work of six different architects: Aldo Rossi, Alan Colquhoun, Mario Gandelsonas and Diana Agrest, Bernard Tschumi, and Peter Eisenman. These case studies share a common thread: a preoccupation with structuralist and poststructuralist concerns with language. However, concepts such as “structure,” “event,” and “meaning” often have different meanings for each of these architects. Thus, my project could be described as a history and criticism of architectural theory—one that focuses specifically on the dissonances and contradictions present within the theoretical writings of these architects, while examining the polemics and discussions between them. I consider their built work only to the extent that it helps to elucidate or challenge theoretical concepts. Thus, in my case study on Aldo Rossi’s writings, I interrogate the analogy between the structuralist concern for articulating discrete and finite linguistic units and the latter’s notion of “type” and urban morphology. In the chapter on Alan Colquhoun, I discuss the influence that the work of Roland Barthes, Claude Lévi-Strauss, and Ferdinand de Saussure had on his reflections about “meaning” and “convention” in architecture. In the case study on the work of Diana Agrest and Mario Gandelsonas, I examine the extent to which their understanding of “theory” and of “ideology” is indebted to the work of Louis Althusser and trace the influence of Roland Barthes, whose seminar on S/Z they attended in Paris before moving to New York in 1971. Likewise, I analyze the role that thinkers such as Henri Lefebvre, Roland Barthes, and the Tel Quel circle in the late 1970s, and Jacques Derrida in the early 1980s had on Bernard Tschumi’s writings on the “polysemy of meaning” and on the “event.” Finally, I examine Peter Eisenman’s collaboration with Jacques Derrida in the 1980s questioning Eisenman’s eclectic appropriation of Derrida’s philosophical concepts. Besides elucidating this significant period of architecture in which many of the fundamental principles of modern architecture were overturned, in the conclusion of this study, I discuss briefly the “post-critical turn” in the architectural scholarship of the past two decades with the hope of challenging its basic assumptions. My hope is to contribute, through its critical reevaluation, to theory’s renewal.