Cognitive control allows us to function in a world filled with constant stimulation. For example, the act of reading a book requires the ability to inhibit irrelevant information while focusing attention towards the letters on the page. Our cognitive control system regulates what information receives attention and what is denied resources. The goal of the current paper is to investigate the mechanisms underlying the activation and maintenance of the control system and how this process changes in healthy aging. First, the ability of younger and older adults to activate and maintain control in response to trial type manipulations is investigated. Second, improvements are made to recent experimental evidence suggesting younger adults are able to modulate performance based on specific stimulus history. Third, this work is extended to an older population suggesting the ability to modulate performance based on specific stimulus history is maintained in healthy aging. Finally, it is demonstrated that current theories of control fail to account for age-related differences in performance based on the comparison of trial type and specific stimulus manipulations.

Research in the field of travel time measurement using Bluetooth technology has been an area of great interest in recent years as transportation professionals strive to increase the cost-effectiveness, accuracy, anonymity, and safety of travel time data collection methods. Commonly used travel time data collection methods include the use of inductive loops, video cameras, and probe vehicles. However, Bluetooth, a globally accepted wireless technology, serves as the medium being utilized by more and more transportation consultants, public agencies, and academics in the collection of travel time data. This study seeks to develop a methodology for measuring travel times on arterial roads using Bluetooth technology. A literature review of general travel time methods and Bluetooth travel time methods was conducted to provide the context for a Bluetooth field deployment development and implementation. The study presents the deployment plan and data analysis of a case study conducted on Spring Street in Atlanta, Georgia. Variable heights, Bluetooth to Bluetooth interference, and detection of Bluetooth devices in probe vehicles are investigated and recommendations are suggested for future Bluetooth travel time studies.

<p>Over many years the housing industry has been criticised concerning its performance related to factors such as quality and cost. Together with the challenge of improving its capability in meeting individual customers’ needs, by means of effective production, this has resulted in a situation where companies look at other industries, such as manufacturing, in order to<i> industrialise</i> their products and processes. Swedish housing producers are today working towards finding more commonality in products and processes at the same time as the ability to deliver customized product and services is maintained or improved. In some cases this means an increase in central control of the design work carried out in project groups.</p><p>This thesis presents a study of the design process for housing at a Swedish property developer, JM AB. Interviews have been conducted with three main groups of actors (project leaders, architects and sellers) connected to ten housing developments. A survey has also been sent out to these individuals as well as to other important actors. The main objectives of these investigations were to find out major actors’ attitudes towards the increase in central control of the design work, in general terms as well as in relation to specific design objects (windows, floor plans, bathrooms and basic structure) for the housing projects.</p><p>The results show that the trend towards more industrialised processes by more structuring and standardising concerning design has had an effect on the design work carried out in project groups. There are positive as well as negative aspects, as well as similarities and differences in attitudes. These differences can be related to different roles as well as to geographical differences. Within this work a <i>triangle</i> has been developed for measuring and comparing different actors’ attitudes. The work further shows that adapting a more holistic view of the design process, by considering it as part of a firm’s product realisation process, could be a base for further developments</p>

Thesis (Ph. D.)--Rutgers University, 2009. / "Graduate Program in Communication, Information and Library Studies." Includes bibliographical references (p. 100-102).

The central objective of this work is to present an analysis of the asymptotic conformal Killing vectors in asymptotically-flat space-times of general relativity. This problem has been examined by two different methods; in Chapter 5 the asymptotic expansion technique originated by Newman and Unti [31] leads to a solution for asymptotically-flat spacetimes which admit an asymptotically shear-free congruence of null geodesics, and in Chapter 6 the conformal rescaling technique of Penrose [54] is used both to support the findings of the previous chapter and to set out a procedure for solution in the general case. It is pointed out that Penrose's conformal technique is preferable to the use of asymptotic expansion methods, since it can be established in a rigorous manner without leading to the possible convergence difficulties associated with asymptotic expansions. Since the asymptotic conformal symmetry groups of asymptotically flat space-times Are generalisations of the conformal group of Minkowski space-time we devote Chapters 3 and 4 to a study of the flat space case so that the results of later chapters may receive an interpretation in terms of familiar concepts. These chapters fulfil a second, equally important, role in establishing local isomorphisms between the Minkowski-space conformal group, 90(2,4) and SU(2,2). The SO(2,4) representation has been used by Kastrup [61] to give a physical interpretation using space-time gauge transformations. This appears as part of the survey of interpretative work in Chapter 7. The SU(2,2) representation of the conformal group has assumed a theoretical prominence in recent years. through the work of Penrose [9-11] on twistors. In Chapter 4 we establish contact with twistor ideas by showing that points in Minkowski space-time correspond to certain complex skew-symmetric rank two tensors on the SU(2,2) carrier space. These objects are, in Penrose's terminology [91, simple skew-symmetric twistors of valence [J. A particularly interesting aspect of conformal objects in space-time is explored in Chapter 8, where we extend the work of Geroch [16] on multipole moments of the Laplace equation in 3-space to the consideration. of Q tý =0 in Minkowski space-time. This development hinges upon the fact that multipole moment fields are also conformal Killing tensors. In the final chapter some elementary applications of the results of Chapters 3 and 5 are made to cosmological models which have conformal flatness or asymptotic conformal flatness. In the first class here we have 'models of the Robertson-Walker type and in the second class we have the asymptotically-Friedmann universes considered by Hawking [73].

This thesis considers how the Black dancing body constitutes both Black history and dance history by reading the body in Pearl Primus' Hard time blues, The Negro speaks of rivers and Strange fruit as physical auto/biography, or what I shall herein refer to as auto/body/graphy. The Black dancing body, because it is a repository of the Black experience, actively engages in the act of self-naming, self-shaping, and self-recognition. As such, it may be considered an auto/body/graphy that is situated in Black history, an instrument through which histories of origin and migration, struggle against oppression and colonialization, and the forging of identities and self-definition are inscribed and communicated. This thesis examines Primus' early choreographies as a discourse through which to consider the impact of Black cultural consciousness and the emergence of a Black aesthetic and Black corpo-reality in dance and theatre on the development of American modern dance before mid-century, and upon later choreographers who followed Primus. / text

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Consumer researchers have long accepted that consumption can serve as a tool in the creation, maintenance, and expression of consumers' identities. And brands, in particular, may be important to the consumer self, even potentially serving as relationship partners. This dissertation explores how brands that are important to consumers may impact their identities at a cognitive level. Specifically, I apply Aron et al.'s (1991) "including others in the self" paradigm from interpersonal relationship research, which finds that people's cognitive representations of close others overlap the psychological self, to studying the impact of brands on the self. I provide evidence that consumers' mental representations of loved brands, which may be perceived as relationship partners, overlap the psychological self in memory. I refer to this as self-brand overlap. I also consider the relevance of disliked brands to the consumer self, providing evidence that consumers' mental representations of disliked brands are dissociated from the psychological self in memory. I refer to this as self-brand dissociation.In two studies I demonstrate and replicate the self-brand overlap and dissociation effects. And, study 2 further explores these constructs, providing evidence that self-brand overlap and dissociation are the cognitive representations of positive and negative, respectively, consumer-brand relationships. This dissertation also includes three further studies that aim to identify boundary conditions of these effects. However, no conclusive support is found for a role of any of the explored moderators. Specifically, studies 3 through 5 find the self-brand dissociation effect in every condition, in every study, suggesting that self-brand dissociation is impervious to the boundary conditions examined. Evidence for the self-brand overlap effect, which was demonstrated in both studies 1 and 2, however, is mixed in each of these 3 later studies. Potential reasons for this lack of concrete replication are offered.

This study aims to contribute to the understanding of ideology conveyed by lexical items and framing of texts. Since ideology is embedded in language the frames used in newspapers construct a narrow ideological perspective for the readers to interpret subjects and events through. On the basis of editorials from The Washington Post and The Washington Times that cover President Barack Obama, the study examines how the editorials differ in their framing of Obama and which discourses and keywords occur unusually frequently in each newspaper. Findings suggest that when it comes to framing, The Washington Post allows for a relatively balanced perspective on Obama as they both support and criticise him, while The Washington Times overwhelmingly condemns and attacks Obama. A keyword analysis points to unusually frequent discourses on race, conservatives and reforms in The Washington Post, and spending, unemployment and political institutions in The Washington Times. Because of their ideological differences the newspapers construct a reality where the subject, Obama, is presented in very different ways.