(Table 1) Grain size results, statistical parameters and magnetic susceptibility values of disturbed sediments from ODP holes 204-1249C and 204-1245B

Soupy and mousse-like fabrics are disturbance sedimentary features that result from the dissociation of gas hydrate, a process that releases water. During the core retrieval process, soupy and mousse-like fabrics are produced in the gas hydrate-bearing sediments due to changes in pressure and temperature conditions. Therefore, the identification of soupy and mousse-like fabrics can be used as a proxy for the presence of gas hydrate in addition to other evidence, such as pore water freshening or anomalously cool temperature. We present here grain-size results, mineralogical composition and magnetic susceptibility data of soupy and mousse-like samples from the southern Hydrate Ridge (Cascadia accretionary complex) acquired during Leg 204 of the Ocean Drilling Program. In order to study the relationship between sedimentary texture and the presence of gas hydrates, we have compared these results with the main textural and compositional data available from the same area. Most of the disturbed analyzed samples from the summit and the western flank of southern Hydrate Ridge show a mean grain size coarser than the average mean grain size of the hemipelagic samples from the same area. The depositional features of the sediments are not recognised due to disturbance. However, their granulometric statistical parameters and distribution curves, and magnetic susceptibility logs indicate that they correspond to a turbidite facies. These results suggest that gas hydrates in the southern Hydrate Ridge could form preferentially in coarser grain-size layers that could act as conduits feeding gas from below the BSR. Two samples from the uppermost metres near the seafloor at the summit of the southern Hydrate Ridge show a finer mean grain-size value than the average of hemipelagic samples. They were located where the highest amount of gas hydrates was detected, suggesting that in this area the availability of methane gas was high enough to generate gas hydrates, even within low-permeability layers. The mineralogical composition of the soupy and mousse-like sediments does not show any specific characteristic with respect to the other samples from the southern Hydrate Ridge.

Magnetic susceptibility parameters of ODP Leg 204 sites

In this paper, we present a rock magnetic data set produced for sediments from Hydrate Ridge recovered during Ocean Drilling Program Leg 204. Our data set is based on several artificially induced magnetic properties that can be used as a diagnostic for the presence of magnetic iron sulfides. The occurrence of magnetic iron sulfides within the gas hydrate stability zone in locations where gas hydrates are present seems to confirm previous interpretations linking formation of such minerals with generation of gas hydrate. Magnetic iron sulfides are also found at positions deeper than the gas hydrate stability zone. We suggest that these positions, which include intervals located just below the bottom-simulating reflector and also at deeper positions, may mark the former presence of gas hydrates that have been later dissociated as the gas hydrate stability zone moved upward through time. Detailed characterization of the magnetic iron sulfide mineralogy and comparison with sedimentological and geochemical data will be attempted for better determining the significance of magnetic iron sulfides in Hydrate Ridge sediments and their possible applications in the study of gas hydrates.

Benthic foraminiferal number of specimens in Cretaceous samples of various DSDP and ODP Sites (Table 2)

Benthic foraminifera from 24 DSDP/ODP sites were investigated to assess their global horizontal and vertical distribution in the deep-sea environment at the end of the Cretaceous period. The samples analyzed are from the late Maastrichtian and within the planktic foraminiferal Abathomphus mayaroensis Zone from a wide range of oceans and paleolatitudes, including the low-latitude Sites 10 and 384 (Atlantic Ocean), 47, 171, 305, and 465 (Pacific Ocean), the mid-latitude Sites 20, 111, 356, 363, 516, 525, 527, 548, and 605 (Atlantic Ocean), 216, 217, and 758 (Indian Ocean), and the high-latitude Sites 208 (Pacific Ocean), 689,698,700,738 and 750 (Southern Ocean). Correspondence analysis, based on the 75 most common taxa, shows a clear biogeographic trend along the first correspondence axis by arranging the sites in paleolatitudinal order. The assemblages from the Tethyan Realm (i.e., low latitudes) are marked by abundant heavily calcified buliminids (such as Bulimina incisa, B. trinitatensis, B. velascoensis, and Reussella szajnochae) and Aragonia spp., whereas high-latitude faunas are characterized by abundant Alabamina creta, Gyroidinoides quadratus, and Pullenia coryelli. The results indicate that the faunas at low and high latitudes, respectively, were influenced by quite different environmental conditions. This is based on the much higher abundance of infaunal morphotypes at low and mid latitudes compared to high latitudes, suggesting that the biogeographic trend found in the data set coincides with the trophic regime at the various sites. The results also provide support for the hypothesis that postulates two simultaneous sources and mechanisms for deep-water formation during the Late Cretaceous, including warm, saline deep water produced by evaporation at low (equatorial) latitudes in contrast to the formation of cold deep waters at high (southern) latitudes.

Corpus scriptorum historiae byzantinae.

Contents listed in: Potthast, August. Repertorium fontium historiae medii aevi. Romae, apud Istituto storico italiano per il Medio Evo, 1962-

The palaces of Crete and their builders,

Translation by Marion C. Harrison of the author's Escursioni nel Mediterraneo e gli scavi di Creta.

Leonis diaconi Caloënsis Historia libri decem : et liber de Velitatione Bellica Nicephori Augusti /

Includes index.

A RETÓRICA DA IGREJA CATÓLICA: O USO DO DISCURSO POLÍTICO NO PAPADO DE JOÃO PAULO II

A retórica sempre esteve presente nas civilizações. Desde a Grécia Antiga até os dias de hoje ela é usada e estudada. Na religião, é uma formidável fonte de expressão. Foi através da retórica que o Papa João Paulo II conseguiu ganhar notoriedade e se envolver em casos muito além da religião no século XX. Ele foi considerado um papa que se utilizou do político e consolidou um novo status para a Igreja Católica. Assim, através da análise retórica da mediação da Santa Sé no Canal de Beagle em 1979 e da análise retórica das ações diplomáticas do Vaticano contra a invasão do Iraque em 2003, este trabalho mostra como se constrói a retórica religiosa, além das conseqüências que isso acarreta não só para a Igreja, como também para o mundo.

O LONG ZOOM: PENSAMENTO SISTÊMICO, INTERDISCIPLINARIDADE E COMUNICAÇÃO EM STEVEN JOHNSON

Steven Johnson é uma referência de relevo na pesquisa brasileira sobre comunicação digital. Ainda assim, essa temática é abordada apenas de maneira tangencial na maior parte da sua produção bibliográfica: os livros de Johnson são, ao mesmo tempo, exemplos e defesas de um método de pesquisa e exposição que integra pensamento sistêmico e abordagem interdisciplinar ao qual ele chama long zoom e que tem a pretensão de trazer novos fatos sobre os fenômenos aos quais é aplicado. Essa dissertação, através de um estudo teórico, analisa os limites e as possibilidades do pensamento de Steven Johnson e de seu long zoom para a pesquisa científica em Comunicação Social. Por meio de uma revisão bibliográfica da obra do autor, cruzando-a com dados biográficos, é apresentada uma análise de conjunto do pensamento de Steven Johnson que o caracteriza como, fundamentalmente, um pensamento epistemológico. A partir disso, com uma breve revisão das principais miradas epistemológicas, da Grécia Antiga ao século XXI, são traçados os parentescos intelectuais do long zoom. Num terceiro momento, revisa-se as formas com que Johnson aplica o long zoom aos problemas da Comunicação Social, verificando-se uma tendência dominante a ressaltar as consequências sociais dos fluxos de informação permitidos pelos meios de comunicação TV e internet, sobretudo, mas também videogames numa aproximação com a Cibernética e, principalmente, um modelo mcluhaniano de análise da comunicação. Após esse trajeto, conclui-se que, a despeito das suas próprias pretensões, Johnson não apresenta novos fatos com o seu long zoom, mas novos pontos de vista e proposições teóricas que podem ou não vir a ser comprovadas pelo trabalho de cientistas.

A noção de sistema na fundação da linguística moderna

This work is intended to investigate the saussurian notion of system. Such a notion is fundamental to Ferdinand de Saussure's theorization, since it composes the definition of "langue", as he thought it. This definition was crucial to the delimitation of linguistics' specific object of study, which granted its place among modern sciences. However, the notion of system was not created by Saussure. Not only in Linguistics, but also in other areas, this notion appeared in very ancient studies, mingling with the establishment of man in society and the development of their economic and organizational activities. Specifically, in the context of language studies, the system consists in a notion that composed the work of the first grammarians in the West, in ancient Greece. Moreover, this notion was also used afterwards, in the synonymy studies and in the comparative analysis of languages, developed by scholars of the nineteenth century. Nevertheless, although Saussure had had his formation in Leipzig and Berlim, amid comparatists studies, his notion of system is an innovation, while is also continuing. In light of this, we aim to highlight the aspects of the saussurian notion of system that allow the establishment of a relationship of continuity and rupture with other conceptions of system. For that, we will investigate four Saussure authored documents: the « Cours de linguistique générale », the « Mémoire sur le système primitif des voyelles dans les langues indo-européennes », and the two sets of manuscripts « De l'essence double du langage » and « Notes pour le cours III ».

Systematic review of Late Jurassic sauropods from the Museu Geológico collections (Lisboa, Portugal)

The Museu Geológico collections house some of the first sauropod references of the Lusitanian Basin Upper Jurassic record, including the Lourinhasaurus alenquerensis and Lusotitan atalaiensis lectotypes, previously considered as new species of the Apatosaurus and Brachiosaurus genera, respectively. Several fragmentary specimens have been classical referred to those taxa, but the most part of these systematic attributions are not supported herein, excluding a caudal vertebra from Maceira (MG 8804) considered as cf. Lusotitan atalaiensis. From the material housed in the Museu Geológico were identified basal eusauropods (indeterminate eusauropods and turiasaurs) and neosauropods (indeterminate neosauropods, diplodods and camarasaurids and basal titanosauriforms). Middle caudal vertebrae with lateral fossae, ventral hollow border by pronounced ventrolateral crests and quadrangular cross-section suggest for the presence of diplodocine diplodocids in north area of the Lusitanian Basin Central Sector during the Late Jurassic. A humerus collected from Praia dos Frades (MG 4976) is attributed to cf. Duriatitan humerocristatus suggesting the presence of shared sauropod forms between the Portugal and United Kingdom during the Late Jurassic. Duriatitan is an indeterminate member of Eusauropoda and the discovery of new material in both territories is necessary to confirm this systematic approach. The studied material is in according with the previous recorded paleobiodiversity for the sauropod clade during the Portuguese Late Jurassic, which includes basal eusauropods (including turiasaurs), diplodocids and macronarians (including camarasaurids and basal titanosauriforms).

El Congreso por la Libertad de la Cultura y su apoyo a la disidencia intelectual durante el franquismo

El artículo reconstruye los principales aspectos de la labor del Congreso por la Libertad de la Cultura entre la oposición antifranquista del interior. Se describen las circunstancias políticas que motivaron la fundación del Comité Español (1959-1977), así como las principales características de esa célula intelectual antifranquista. El artículo indaga en los objetivos ideológicos y políticos de la actividad del Congreso por la Libertad de la Cultura entre las elites intelectuales y culturales disidentes durante el tardofranquismo. Nos concentramos especialmente en el capítulo que atañe a la ayuda directa dispensada por el Congreso por la Libertad de la Cultura a los intelectuales y artistas españoles mediante la concesión de becas de libros y bolsas de viaje a través del Comité d’Ecrivains et d’Editeurs pour une Entraide Européenne. Reconstruimos asimismo los nombres de los principales beneficiarios españoles de esas ayudas, así como la principal problemática vinculada al desarrollo del programa. El análisis histórico se apoya en documentos procedentes de diversos archivos nacionales e internacionales.

Impactos da adoção de sistemas de informação no judiciário: pesquisa com usuários do sistema processual virtual em um juizado especial federal

The Information Technology (IT) is increasing his applicability to business, both private and public companies. It is necessary the adequate use of the new technologies and get cooperation and technology acceptance of the system. People tend to resist to the changes, contributing so that the technology is rejected or even it is not recognized as promoting of the changes. This study is relevant and aim to evaluate the impacts of new technologies, considering their users as fundamental factors in the change process. The survey analyzed the advantages and the barriers of the system use in three federal special judicial of Rio Grande do Norte, with data collected in May of 2007, through the application of questionnaires to thirty eight users of the virtual system CRETA. The users' perception was evaluated, under the optics of five variables: efficiency, image, agility, ease of use and quality. Starting from the obtained results, it was evidenced that the implementation of the system felt accordingly the expected and it reached the objectives intended that were: the velocity and efficiency in the path of the lawsuits, larger productivity, resulting in a better quality of the final work introduced to the citizen and proportionate an improvement in the organizational image of the judiciary power