Symmetric and Asymmetric Gaps in Some Fields of Formal Power Series

2000 Mathematics Subject Classification: 03E04, 12J15, 12J25.

Escolhas lexicais e iconicidade textual: uma análise do insólito no romance Sombras de Reis Barbudos

Esta tese dedicou-se a descrever e interpretar a tessitura textual dos fenômenos insólitos no romance Sombras de Reis Barbudos, de José J. Veiga, com base na associação entre a Teoria da Iconicidade Verbal e a Linguística de Córpus . Centrou-se, especificamente, nas marcas linguísticas que representam ideias ou conduzem o intérprete à percepção de que o insólito é construído no texto por meio itens léxicos que constituem pistas icônicas. Merecem especial interesse, sobretudo, os substantivos, que, por serem palavras com alta iconicidade, participam da construção/representação de fenômenos insólitos e criam, por meio da trilha léxica, o itinerário de leitura para o texto-córpus. Para que os resultados fossem significativos, análise apoiou-se nos recursos digitais da Linguística de Córpus (SARDINHA, 2004; 2009), que possibilitaram realizar uma pesquisa baseada em um córpus. A utilização da Linguística de Córpus como metodologia permitiu levantar, quantificar e tabular os signos que corroboram com a compreensão da incongruência e da iconicidade lexical dos fenômenos insólitos em um texto literário, identificando os substantivos-nódulos e seus colocados, para avaliá-los quanto à incompatibilidade das escolhas lexicais realizadas por José J. Veiga em relação às estruturas lexicogramaticais da Língua Portuguesa. Fundamentou-se a discussão no insólito como categoria essencial do fantástico modal (BESSIÈRE, 2009; COVIZZI, 1978, FURTADO, s.d.; PRADA OROPREZA, 2006); na Semiótica de extração peirceana, com enfoque na Teoria da Iconicidade Verbal (SIMÕES, 2007,2009) e na colocação lexical (BÉNJOINT, 1994; SINCLAIR, 1987, 1991, 2004; TAGNIN, 1989). A tese demonstra que a incongruência e a iconicidade lexical são identificadas a partir da seleção vocabular obtida pelo processamento digital e pelo confronto com o Córpus do Português. A análise comprova que os substantivos, como categorias linguísticas caracterizáveis semanticamente, têm a função designatória ou de nomeação na arquitetura de um texto em que se manifesta o insólito. Revela também que a incongruência lexical constitui-se em uma chave para a construção do ilógico, mágico, fantástico, misterioso, sobrenatural, irreal e suprarreal no texto-córpus

Procedimentos de jogadores no jogo virtual Colheita Feliz: a virtude e a regra

This study based on moral culture research and the theoretical Piagetian perspective aims to investigate the relation between virtue and rules in the procedures of participants in the Internet game Colheita Feliz (Happy Harvest) – an Orkut application. By means of descriptive qualitative analysis, the behavior of 60 participants in the game was observed during two months. The participants’ performance ranking was analyzed according to the procedures they used. The results showed predominance of the crop stealing procedure in comparison with the crop cultivation procedure and allowed to consider that the action of stealing of the participants was not guided by the universal principles of virtue, honesty or lack of it (moral domain) but by the playing convention for the game (social domain) favoring the stealing procedure, and also by personal domain (choices) and mutual agreement among the subjects participating in the game. The data did not indicate connections between the participants’ actions inside and outside virtual and real fields with regard to stealing, and reinforced the idea that rules are conventionalized in the domain of a group and depend on social interactions by which mutual respect among peers must prevail. The data also shows that morality is not the regulatory actions in the game. The results also showed the importance of carrying out research on procedures used by computer game players since such procedures can demonstrate cognitive, moral, affective and social aspects perceived during playful interaction situations.

Ship-Mounted Real-Time Surface Observational System on board Indian Vessels for Validation and Refinement of Model Forcing Fields

A network of ship-mounted real-time Automatic Weather Stations integrated with Indian geosynchronous satellites Indian National Satellites (INSATs)] 3A and 3C, named Indian National Centre for Ocean Information Services Real-Time Automatic Weather Stations (I-RAWS), is established. The purpose of I-RAWS is to measure the surface meteorological-ocean parameters and transmit the data in real time in order to validate and refine the forcing parameters (obtained from different meteorological agencies) of the Indian Ocean Forecasting System (INDOFOS). Preliminary validation and intercomparison of analyzed products obtained from the National Centre for Medium Range Weather Forecasting and the European Centre for Medium-Range Weather Forecasts using the data collected from I-RAWS were carried out. This I-RAWS was mounted on board oceanographic research vessel Sagar Nidhi during a cruise across three oceanic regimes, namely, the tropical Indian Ocean, the extratropical Indian Ocean, and the Southern Ocean. The results obtained from such a validation and intercomparison, and its implications with special reference to the usage of atmospheric model data for forcing ocean model, are discussed in detail. It is noticed that the performance of analysis products from both atmospheric models is similar and good; however, European Centre for Medium-Range Weather Forecasts air temperature over the extratropical Indian Ocean and wind speed in the Southern Ocean are marginally better.

Maximum mass of stable magnetized highly super-Chandrasekhar white dwarfs: stable solutions with varying magnetic fields

We address the issue of stability of recently proposed significantly super-Chandrasekhar white dwarfs. We present stable solutions of magnetostatic equilibrium models for super-Chandrasekhar white dwarfs pertaining to various magnetic field profiles. This has been obtained by self-consistently including the effects of the magnetic pressure gradient and total magnetic density in a general relativistic framework. We estimate that the maximum stable mass of magnetized white dwarfs could be more than 3 solar mass. This is very useful to explain peculiar, overluminous type Ia supernovae which do not conform to the traditional Chandrasekhar mass-limit.

Real-Time Measurement on Deformation Fields of Hole-Excavated Samples under Impact Tension

In this paper, the real-time deformation fields are observed in two different kinds of hole-excavated dog-bone samples loaded by an SHTB, including single hole sample and dual holes sample with the aperture size of 0.8mm. The testing system consists of a high-speed camera, a He-Ne laser, a frame grabber and a synchronization device with the controlling accuracy of I microsecond. Both the single hole expanding process and the interaction of the two holes are recorded with the time interval of 10 mu s. The observed images on the sample surface are analyzed by newly developed software based on digital correlation theory and a modified image processing method. The 2-D displacement fields in plane are obtained with a resolution of 50 mu m and an accuracy of 0.5 mu m. Experimental results obtained in this paper are proofed, by compared with FEM numerical simulations.

Real-Time Measurement on Deformation Fields of Notched Samples Under Impact Tension

In this paper, a real-time and in situ optical measuring system is reported to observe high-velocity deformations of samples subjected to impact loading. The system consists of a high-speed camera, a He-Ne laser, a frame grabber, a synchronization device and analysis software based on digital correlation theory. The optical system has been adapted to investigate the dynamic deformation field and its evolution in notched samples loaded by an split Hopkinson tension bar, with a resolution of 50 pin and an accuracy of 0.5 mum. Results obtained in experiments are discussed and compared with numerical simulations. It is shown that the measuring system is effective and valid.

Real-Time Measurement on Deformation Fields of Hole-Excavated Samples under Impact Tension

In this paper, the real-time deformation fields are observed in two different kinds of hole-excavated dog-bone samples loaded by an SHTB, including single hole sample and dual holes sample with the aperture size of 0.8mm. The testing system consists of a high-speed camera, a He-Ne laser, a frame grabber and a synchronization device with the controlling accuracy of I microsecond. Both the single hole expanding process and the interaction of the two holes are recorded with the time interval of 10 mu s. The observed images on the sample surface are analyzed by newly developed software based on digital correlation theory and a modified image processing method. The 2-D displacement fields in plane are obtained with a resolution of 50 mu m and an accuracy of 0.5 mu m. Experimental results obtained in this paper are proofed, by compared with FEM numerical simulations.

By-paths to forgotten folks; stories of real life in Baptist home mission fields, by Coe Hayne. Ed. by the Department of missionary education, Board of education of the Northern Baptist convention.

http://www.archive.org/details/bypathstoforgott00haynrich

Super-villains of the "real world": the political use of the characterization of villains in Chistopher Nolan's "Dark Knight Trilogy"

It is almost a tradition that celluloid (or digital) villains are represented with some characteristics that remind us the real political enemies of the producer country of the film, or even enemies within the country according to the particular ideology that sustains the film. The case of Christopher Nolan The Dark Knight trilogy, analyzed here, is representative of this trend for two reasons. First, because it gets marked by political radicalization conducted by the US government after the attack of September 11, 2001. Secondly, because it offers a profuse gallery of villains who are outside the circle of friends as the new doctrine “either with us or against us” opened by George Bush for the XXI century. This gallery includes from the very terrorists who justify the War on Terror (Ra's al Ghul, the Joker), to the “radical left” (Bane, Talia al Ghul) including liberal politicians (Harvey Dent), and corrupt that take advantage of the softness of the law to commit crimes with impunity (Dr. Crane, the Scarecrow).

Investigation into the performance of an algorithm for deriving concise descriptions of optic flow fields for real-time control

This paper describes a region-based algorithm for deriving a concise description of a first order optical flow field. The algorithm described achieves performance improvements over existing algorithms without compromising the accuracy of the flow field values calculated. These improvements are brought about by not computing the entire flow field between two consecutive images, but by considering only the flow vectors of a selected subset of the images. The algorithm is presented in the context of a project to balance a bipedal robot using visual information.

Super-realistic rendering using real-time tweening

The realism of contemporary computer graphics (and especially Virtual Reality {VR}) is limited by the great computational cost of rendering objects of appropriate complexity with convincing lighting and surface effects. We introduce a framework that allows rendering of objects in true photographic quality using tweening. The simple but effective design of our system allows us not only to perform the necessary operations in real-time on standard hardware, but also achieve other effects like morphing. Furthermore, it is shown how our system can be gainfully employed in non-VR contexts like extreme low-bandwidth video-conferencing and others.

Super-resolution of a 3-dimensional scene from novel viewpoints

Super-resolution is a method of post-processing image enhancement that increases the spatial resolution of video or images. Existing super-resolution techniques apply only to images captured of a planar scene. This paper aims to extend super-resolution concepts from the 2D domain to the 3D domain, drawing on ideas from both superresolution and multi-view geometry, two fields of research that until now have predominantly been studied in isolation. 2D super-resolution methods are not without their complexities and limitations. However, once multiple views of a scene are considered within a super-resolution framework, a new range of issues arise that must also be resolved. For example, when input images of a scene with variation in depth are considered, it is no longer clear how and where the images should be registered. This paper describes the use of sparse 3D reconstruction in order to ‘register’ the input images, which are then transferred to a novel image plane and combined to increase the perceived detail in the scene. Experimental results using real images captured from generally positioned input cameras are presented.