Orientador: Orivald Arf / Banca: Maria Aparecida Anselmo Tarsitano / Banca: Domingos Fornasieri Filho / Resumo: O nitrogênio é um nutriente de suma importância, tendo em vista sua dinâmica no solo e a exigência da cultura, porém, em muitas situações o solo é incapaz de suprir todo o requerimento de nitrogênio das culturas, o que obriga a utilização de fertilizantes para a obtenção de produtividade satisfatória. Desse modo, propôs-se o estudo com o objetivo de avaliar diferentes fontes e modos de aplicação de nitrogênio em trigo cultivado no sistema de plantio direto, no período de maio a agosto dos anos de 2006 e 2007, em área experimental da UNESP - Campus de Ilha Solteira, localizada no município de Selvíria - MS. A aplicação de nitrogênio na semeadura, em cobertura ou parcelado na semeadura e em cobertura apresentaram produtividades semelhantes, porém superiores ao tratamento sem nitrogênio. O uso da fonte uréia propiciou produtividade de grãos semelhante aos tratamentos com uso de fonte com liberação gradual. As estimativas de custos e lucratividade indicaram que a produção de trigo irrigado em sistema de plantio direto não foi rentável, tendo em vista, que o preço médio considerado nesta safra não foi suficiente para cobrir os custos. As fontes e as épocas de aplicação evidenciaram comportamentos diferentes e pelos níveis da qualidade das sementes, se mostrou mais indicado o uso da fonte Entec com aplicação do N todo na semeadura / Abstract: Nitrogen is an important nutrient, due to its dynamics in the soil and necessity by the crops; however, in a lot of situations the soil is unable to supply enough amount of nitrogen, needing the use of nitrogen fertilization for obtaining high productivity. In this way, this study was conducted with the objective of evaluating different sources and times of nitrogen application in wheat cropped in no till system, from May to August in 2006 and 2007, in at Experimental Station of UNESP - Ilha Solteira Campus, located in Selvíria County - MS. The different methods yielded similar production results, being all superior to production without application of fertilizer N. Urea-N yielded a similar grain production to slow-release-N. Estimates of costs and profit margin indicate that irrigated no-till wheat production is not profitable when taking into account the average final commercial price, as it does not cover production costs. The different forms of fertilizer N and times of application yielded different production results, and, depending on the seed quality, we would thus recommend applying fertilizer N in the Entec form upon sowing / Mestre

Not Dead At All is a nontraditional thesis, a creative product, the result of a combination of media production and social research. This paper is an attempt to explain the creative and production process behind the creation of an original media content, using the social research as a tool to increase the likeability of our characters and therefore increase the show’s chances of success.

This is a nontraditional thesis that combines social research in ethnic stereotypes in TV and film with the creative process of film production. This paper contains the formal step of research, in addition to the details on the production and creation of five original short films related to the issue of ethnic representations.

This thesis chronicles the development of Henderson and its media. Unlike most pioneering towns that sprung up west of the Allegheny and Appalachian Mountains during the 18th century, Henderson assumed a unique position in the development of the Midwest as an important and major tobacco port, as an agricultural conduit to the North and industrial path to the South. and as an outpost of trade to the West. A clearer picture of its aggressive nature becomes evident by tracing the hard-fought beginnings of the region. As Henderson grew in importance, so did its lust grow for excitement and entertainment. Compared to the gleaming major Atlantic seaports of the youthful nation. Henderson sparkled like a diamond amongst the rough and crude Midwest settlements by providing residents and travelers inland entertainment at its Ohio riverport. Two overlapping questions embrace the focus of the study: what caused the underlying pride of development that Henderson obviously possesses? Why, too, has Henderson had such an extensive amount of media from which to choose? The questions serve as a blueprint for depicting the cultural growth and the impact of media that has existed in Henderson and for its smaller surrounding communities. Information will come from printed newspaper articles, books of Henderson and Henderson County history, interviews with some of those few remaining theater operators, phonograph operators, and broadcasters. use my twenty-years' experience of working in radio and television production, sales, and management to interpret the jargon of their craft and to make their information more meaningful to the reader.

By virtue of their broadcast licenses, local television stations in the United States are bound to serve in the public interest of their community audiences. As federal regulations of those stations loosen and fewer owners increase their holdings across the country, however, local community needs are subjugated by corporate fiduciary responsibilities. Business practices reveal rampant consolidation of ownership, newsroom job description convergence, skilled human labor replaced by computer automation, and economically-driven downsizings, all in the name of profit. Even so, the people laboring under these conditions are expected to keep their communities informed with democracy- and citizenship-enhancing information. This study uses a critical political economy framework to focus on the labor aspects of working in commercially-run local television newsrooms in the United States. Surveys and interviews with news workers from the 25 largest local television markets highlight the daily challenges of navigating the dichotomy of labor in the space between corporate profiteering and public enlightenment. In addition to their more well-known and well-studied on-air reporter and anchor peers, "behind the scenes" workers and those with newly converged job descriptions also share their news work stories, thus filling a gap in the literature. Corporate capital incentives affect all who gather and disseminate the news. While all of these workers generally strive for high journalistic quality, the pressures of increased workloads and constant deadlines imposed by shrinking news staffs and growing digital media expectations mean journalists have to make craft work compromises in the race to report news faster and first. Owners push experienced news veterans with deep community connections out in favor of younger, cheaper, more tech-savvy workers. Financially beneficial content trumps deep policy investigations. These outcomes not only worry those in the journalistic trenches of local television news, but also potentially deprive the public of the information they seek from these outlets. As local television newsrooms remain the most popular sources of information for Americans, particularly in times of crisis, such outcomes are not in the community's best interest.

This dissertation traces lesbian portrayals on network television from the 1960s through the 1990s. A focus on episodic dramas and situation comedies reveals a concise representation of the mediated lesbian image. Building on existing research on lesbian, gay, bisexual, and transgender images on television, this work focuses exclusively on the lesbian image broadcast free of charge over the air during prime-time on commercial networks in the United States. Using a postmodern feminist framework, this textual analysis examines the images and texts portraying lesbian characters in episodic dramas and situation comedies. Furthermore, applying a semiotic lens to the analysis dissects the voice and actions of lesbian characters illustrating the ways production techniques and narrative scripting work together to represent a lesbian image on television.

In the last decade, there has been an explosive growth in different applications of wireless technology, due to users' increasing expectations for multi-media services. With the current trend, the present systems will not be able to handle the required data traffic. Lattice codes have attracted considerable attention in recent years, because they provide high data rate constellations. In this thesis, the applications of implementing lattice codes in different communication systems are investigated. The thesis is divided into two major parts. Focus of the first part is on constellation shaping and the problem of lattice labeling. The second part is devoted to the lattice decoding problem. In constellation shaping technique, conventional constellations are replaced by lattice codes that satisfy some geometrical properties. However, a simple algorithm, called lattice labeling, is required to map the input data to the lattice code points. In the first part of this thesis, the application of lattice codes for constellation shaping in Orthogonal Frequency Division Multiplexing (OFDM) and Multi-Input Multi-Output (MIMO) broadcast systems are considered. In an OFDM system a lattice code with low Peak to Average Power Ratio (PAPR) is desired. Here, a new lattice code with considerable PAPR reduction for OFDM systems is proposed. Due to the recursive structure of this lattice code, a simple lattice labeling method based on Smith normal decomposition of an integer matrix is obtained. A selective mapping method in conjunction with the proposed lattice code is also presented to further reduce the PAPR. MIMO broadcast systems are also considered in the thesis. In a multiple antenna broadcast system, the lattice labeling algorithm should be such that different users can decode their data independently. Moreover, the implemented lattice code should result in a low average transmit energy. Here, a selective mapping technique provides such a lattice code. Lattice decoding is the focus of the second part of the thesis, which concerns the operation of finding the closest point of the lattice code to any point in N-dimensional real space. In digital communication applications, this problem is known as the integer least-square problem, which can be seen in many areas, e.g. the detection of symbols transmitted over the multiple antenna wireless channel, the multiuser detection problem in Code Division Multiple Access (CDMA) systems, and the simultaneous detection of multiple users in a Digital Subscriber Line (DSL) system affected by crosstalk. Here, an efficient lattice decoding algorithm based on using Semi-Definite Programming (SDP) is introduced. The proposed algorithm is capable of handling any form of lattice constellation for an arbitrary labeling of points. In the proposed methods, the distance minimization problem is expressed in terms of a binary quadratic minimization problem, which is solved by introducing several matrix and vector lifting SDP relaxation models. The new SDP models provide a wealth of trade-off between the complexity and the performance of the decoding problem.

This paper examines the function of narrative discourse in television talk shows. Basing our analysis on five episodes of the Swedish talk show Skavlan, we illustrate how narratives are initiated and elaborated by the participants of the show. The analysis shows that the institutional roles are challanged and that the roles vary between the host ant the guests. The analysis also shows that when guests introduce and elaborate stories they use the same discursive actions and resources as the host. When participants enter an actvie role in their storytelling the hos takes a more restrained role in which he lets the the conversation evolve spontaneously. The analysis identifies yet another participant role which was not included in the studies of Ochs & Taylor and Thornborrow. The role appears when the host uses indirect form of address to both the studio audience and the overhearing audience. This role is relevant in the study of broadcast talk because of the very nature of television.

In the last decade, there has been an explosive growth in different applications of wireless technology, due to users' increasing expectations for multi-media services. With the current trend, the present systems will not be able to handle the required data traffic. Lattice codes have attracted considerable attention in recent years, because they provide high data rate constellations. In this thesis, the applications of implementing lattice codes in different communication systems are investigated. The thesis is divided into two major parts. Focus of the first part is on constellation shaping and the problem of lattice labeling. The second part is devoted to the lattice decoding problem. In constellation shaping technique, conventional constellations are replaced by lattice codes that satisfy some geometrical properties. However, a simple algorithm, called lattice labeling, is required to map the input data to the lattice code points. In the first part of this thesis, the application of lattice codes for constellation shaping in Orthogonal Frequency Division Multiplexing (OFDM) and Multi-Input Multi-Output (MIMO) broadcast systems are considered. In an OFDM system a lattice code with low Peak to Average Power Ratio (PAPR) is desired. Here, a new lattice code with considerable PAPR reduction for OFDM systems is proposed. Due to the recursive structure of this lattice code, a simple lattice labeling method based on Smith normal decomposition of an integer matrix is obtained. A selective mapping method in conjunction with the proposed lattice code is also presented to further reduce the PAPR. MIMO broadcast systems are also considered in the thesis. In a multiple antenna broadcast system, the lattice labeling algorithm should be such that different users can decode their data independently. Moreover, the implemented lattice code should result in a low average transmit energy. Here, a selective mapping technique provides such a lattice code. Lattice decoding is the focus of the second part of the thesis, which concerns the operation of finding the closest point of the lattice code to any point in N-dimensional real space. In digital communication applications, this problem is known as the integer least-square problem, which can be seen in many areas, e.g. the detection of symbols transmitted over the multiple antenna wireless channel, the multiuser detection problem in Code Division Multiple Access (CDMA) systems, and the simultaneous detection of multiple users in a Digital Subscriber Line (DSL) system affected by crosstalk. Here, an efficient lattice decoding algorithm based on using Semi-Definite Programming (SDP) is introduced. The proposed algorithm is capable of handling any form of lattice constellation for an arbitrary labeling of points. In the proposed methods, the distance minimization problem is expressed in terms of a binary quadratic minimization problem, which is solved by introducing several matrix and vector lifting SDP relaxation models. The new SDP models provide a wealth of trade-off between the complexity and the performance of the decoding problem.

According to the literature there are still very few researches focusing on the Online Live Instruction in e-Learning. By Integrating IP-Based Video Conferencing System and Full Screen Capture with Live Streaming Broadcast System into an LMS, instructors can provide Online Live Instruction. In this kind of environment, teachers and students can interact together like in conventional classroom. This study explored the process of Online Live Instruction, solutions for the encountered problems are also provided. SOP (Standardized Operation Procedures) are developed on how to conduct Course Material Lecturing and Group Discussion & Summary Report activities. Suggestions about Online Live Instruction for teachers, teaching assistants and students are also included.