This paper presents the research and development of a 3-legged micro Parallel Kinematic Manipulator (PKM) for positioning in micro-machining and assembly operations. The structural characteristics associated with parallel manipulators are evaluated and the PKMs with translational and rotational movements are identified. Based on these identifications, a hybrid 3-UPU (Universal Joint-Prismatic Joint-Universal Joint) parallel manipulator is designed and fabricated. The principles of the operation and modeling of this micro PKM is largely similar to a normal size Stewart Platform (SP). A modular design methodology is introduced for the construction of this micro PKM. Calibration results of this hybrid 3-UPU PKM are discussed in this paper. / Singapore-MIT Alliance (SMA)

The Daily Show är ett halvtimmeslångt amerikanskt humorprogram som sänds på kabelkanalen Comedy Central. Programmet tar upp nyheter, främst om politik, på ett humoristiskt sätt med hjälp av klipp från etablerade nyhetskanaler. Vår undersökning syftar till att ta reda på hur The Daily Show förändrats efter valet 2008 då Barack Obama valdes till president. Vi har jämfört inslagen i 32 The Daily Show-avsnitt från hösten 2005 med lika många från samma period 2009. Extra fokus har lagts på hur programmet behandlar nyhetsmedier. Dessutom har vi undersökt programmets gästlistor från hela dessa år, samt tagit hjälp av en tidigare studie från 2007 för att se vilken sorts gäster som får framträda och om det skett någon förändring. Vår studie visar att The Daily Show gått mot att kritisera och rikta satir mot nyhetsmedier som CNN och Fox News i större utsträckning än tidigare. Särskilt Fox News har fått en mycket större andel av programmets uppmärksamhet. Färre underhållare finns med som gäster, till förmån för fler politiska kommentatorer, journalister och författare. Programmet fokuserar till största del på sakfrågor och inte enskilda personer.

Shows like The Daily Show with Jon Stewart, The Colbert Report, Politically Incorrect with Bill Maher, Saturday Night Live, and even South Park represent an underresearched subfield of discourse about political communication and persuasion. These shows manage to reach audiences not traditionally known for high levels of political engagement and draw them in with their comedic framework. This thesis investigates the impact of televised political satire on public perceptions of presidential candidates and campaign issues and the direct result these impacts may have on presidential elections. This thesis first gives some background in the types of communication and personalities of the front-men and women of these shows and then moves into a historical account of how the exigence for this recent explicit hybridization between comedy and news emerged. It then analyzes how these comedians view their own role within media and politics. It provides a thick account of the liberalizing force televised political satire has been for the American political climate so far, and where it will likely lead us in the near future with the growth of new communication technologies.

This thesis is the first to explore the life and political thought of Sir James Stewart of Goodtrees (1635-1713). The first part reviews the life of his father, Sir James Stewart of Kirk field (1608-1681) to 1661, and Goodtrees' own life from birth to his admission to the Scots bar in 1661. This provides the backdrop of history necessary to appreciate his contributions as both writer and radical activist. Particular attention focuses on the conflict between Charles I and Charles II, on the one hand, and the Church of Scotland, on the other; the National Covenant (1638) and the Solemn League and Covenant of(1643); the British wars of religion; and the upheavals following the Restoration in the 1660s, culminating in the Pentland Rising of 1666. The next part develops Goodtrees' political philosophy from his two most important writings. Chapter 3 reviews and interprets Naphtali (1667), a defence of those who rose at Pentland. Chapter 4 reviews Andrew Honyman's Survey of Naphtali (1668, 1669), a rebuttal of Naphtali and standard Anglican case for royal absolutism. Chapter 5 reviews and interprets Goodtrees' Jus Populi Vindicatum, or The People's Right, to defend themselves and their Covenanted Religion, vindicated (1669), his rejoinder to Honyman. His Calvinist, covenantal constitutionalism is shown to be an important link between earlier resistance theorists like John Knox and Samuel Rutherford and the later Whigs, represented preeminently by John Locke. The third part (chapters 6-7) reviews Goodtrees' life and minor writings as radical critic of the Restoration monarchy; a participant in plots among British exiles in Holland to overthrow it; a member briefly of James's Scottish government before the Revolution; and lord advocate and churchman pursuing political, legal, and ecclesiastical reforms afterwards.

Marine reserves have increasingly been recognised for their potential to address the pervasive problem of unsustainable harvest of fisheries worldwide. Biologists advocate the benefits of increased spawning biomass, larger modal sizes and greater densities of fish within marine reserves, and the possibility of spillover to adjacent fishable areas. Bioeconomic studies, however, find that pay-offs from stand-alone marine reserves rarely compete with sustainable yield management schemes, but that they can be beneficial when stocks are heavily exploited. Most of these bioeconomic models are analytical and deterministic in nature, and therefore ignore the redistribution of effort in response to closure and the inherent uncertainty of the marine environment. We present a bioeconomic analysis of a network of no-take areas around Stewart Island in New Zealand applied to the shellfish species paua (abalone) that incorporates both predicted redistribution and reduction in effort, as well as stochastic recruitment. A nested logit model is applied to spatially recorded catch and effort data by the Ministry of Fisheries between 1998 and 2003 to capture the two level decision-making process of divers. On any given day, divers decide whether to go diving at all, and if so, which of the 16 statistical areas around Stewart Island to visit. Weather conditions, spatially varying levels of catch per unit of effort and distance are used as explanatory variables to select areas for closure according to the �least economic impact� in terms of loss of diving trips. An age-structured biological model is developed with parameters specifically applied to paua stocks around Stewart Island. Virgin paua biomass as of 1974 is estimated on the basis of growth, survival, post-larval recruitment and egg production in the absence of fishing. Historic catch rates are then applied to find overall and area-specific levels of exploitation rates, spawning biomass, egg production, legal biomass and numbers of paua. In a final step, the economic model is linked to the biological model to simulate the imposition of no-take areas when taking account of the initial disproportional shift of harvest to fished areas in the first year, and the increase in overall pressure on legal biomass in the years thereafter. We contribute to the marine reserve debate by showing that in the very long run, the overall yield under closure of a relatively small area approaches and even slightly surpasses the yield under no closure for an assumed spillover gradient of 40% despite the redistribution of effort. The most important benefits of marine reserves emerge when stochastic recruitment is included in the recruitment function. In practice, predictions about the stock status and the impact of different harvest levels become much more difficult when acknowledging the inherent variability of the marine environment. The likelihood of stock collapse depends on the assumed value of two recruitment parameters, which highlights the effects of parameter uncertainty and emphasizes the role of marine reserves for population persistence. We also show that under uncertainty average yields under a management regime of a network of no-take areas in addition to the quota system can equal yields under no closure for an assumed spillover gradient of 40%, despite the increased pressure on areas adjacent to the closed areas. Our findings have significant implications for the management of the paua fishery at Stewart Island. For a heterogeneously abundant species, such as paua, spatial management in addition to quota limits could be vital in ensuring the long-term sustainability of the fishery given the inherent variability of the marine environment.

Thesis (Ed.D.)--Teachers College, Columbia University, 1988. / Includes appendices. Typescript; issued also on microfilm. Sponsor: Valentina Harrell. Dissertation Committee: Ellen Condliffe Lagemann. Bibliography: leaves 286-300.

Habilitation - Universität, Trier. / Description based on print version record. Includes bibliographical references.

Thesis (M.A.)--Northwestern University, 1935. / "Publication no. 29m-1." eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 109-112).

Thesis (M.A.)--Northwestern University, 1935. / "Publication no. 29m-1." Includes bibliographical references (leaves 109-112).

No description available.