Orbiter windward surface entry Heating: Post-orbital flight test program update

Correlations of orbiter windward surface entry heating data from the first five flights are presented with emphasis on boundary layer transition and the effects of catalytic recombination. Results show that a single roughness boundary layer transition correlation developed for spherical element trips works well for the orbiter tile system. Also, an engineering approach for predicting heating in nonequilibrium flow conditions shows good agreement with the flight test data in the time period of significant heating. The results of these correlations, when used to predict orbiter heating for a high cross mission, indicate that the thermal protection system on the windward surface will perform successfully in such a mission

Setting Up an Adolescent Clinic in a Suburban Pediatric Office Group Practice

Teenagers in the United States experience significant mortality and morbidity because of high-risk behaviors. Adolescents need routine health supervision aimed at reducing these risks. A Teen Clinic within the Pediatrics Clinic at the Henry Ford Hospital Fairlane Center offers separate facilities, longer appointments, and an emphasis on adolescent issues. This plan is a model for practitioners in various office settings who seek to improve adolescent care

Single-qubit unitary gates by graph scattering

We consider the effects of plane-wave states scattering off finite graphs, as an approach to implementing single-qubit unitary operations within the continuous-time quantum walk framework of universal quantum computation. Four semi-infinite tails are attached at arbitrary points of a given graph, representing the input and output registers of a single qubit. For a range of momentum eigenstates, we enumerate all of the graphs with up to $n=9$ vertices for which the scattering implements a single-qubit gate. As $n$ increases, the number of new unitary operations increases exponentially, and for $n>6$ the majority correspond to rotations about axes distributed roughly uniformly across the Bloch sphere. Rotations by both rational and irrational multiples of $\pi$ are found.Comment: 8 pages, 7 figure

Course-based Science Research Promotes Learning in Diverse Students at Diverse Institutions

Course-based research experiences (CREs) are powerful strategies for spreading learning and improving persistence for all students, both science majors and nonscience majors. Here we address the crucial components of CREs (context, discovery, ownership, iteration, communication, presentation) found across a broad range of such courses at a variety of academic institutions. We also address how the design of a CRE should vary according to the background of student participants; no single CRE format is perfect. We provide a framework for implementing CREs across multiple institutional types and several disciplines throughout the typical four years of undergraduate work, designed to a variety of student backgrounds. Our experiences implementing CREs also provide guidance on overcoming barriers to their implementation

Colheita e armazenamento de sementes de coentro.

Made available in DSpace on 2011-04-09T16:13:50Z (GMT). No. of bitstreams: 1 nascimentocolheita.pdf: 1775148 bytes, checksum: 55e9ecfa2f8f7b5b443ff8e6687a2648 (MD5) Previous issue date: 2007-03-2

The role of organizational climate in socially embedding construction firms’sustainability goals

Despite the growing interest in sustainability research, little scholarly attention, both conceptual and empirical, has been given to assessing the individual-level behavioural issues that affect sustainability outcomes. Still less research is undertaken to examine the mechanisms by which construction firms enable their sustainability goals to be socially embedded within their organizations to shape the behaviour and attitudes of employees. In an attempt to fill this gap, this paper draws from the extensive literature on organizational climate perspective to explain how organizational-level characteristics and processes can result in a strong, conducive climate that fosters shared perceptions and guide behaviours that are fundamental to the attainment of sustainability goals in organizations. From the critical review of this literature, this paper offers three research propositions and avenues in which they could be tested. The paper concludes with a broadened discussion of the theoretical and practical implications this framework has on advancing the sustainability discourse within CM discipline beyond the current largely technical, policy and institutional foci

Redefining smoking relapse as recovered social identity – secondary qualitative analysis of relapse narratives

Although many people in the general population manage to quit smoking, relapse is common. Theory underpinning the determinants of smoking relapse is under-developed. This article aims to specify theoretical insight into the process of relapse to smoking, to underpin effective intervention development. Secondary qualitative analysis of extended narratives of smoking relapse (n=23) were inductively coded within our conceptual framework of a socially situated narrative theoretical approach to identity. Smoking relapse is conceptualised as a situated rational response to a ‘disruption’ in individual narrative identity formation, and an attempt to recover a lost social identity. Emotional reactions to relapse, such as pleasure, but also guilt and shame, support this assertion by demonstrating the ambivalence of re-engaging in a behaviour that is situated and rational in terms of individual identity formation, yet ostracised and stigmatised by wider culture

Broadcasting graphic war violence: the moral face of Channel 4

Drawing on empirical data from Channel 4 (C4) regarding the broadcasting of violent war imagery, and positioned within Goffman’s notion of the interaction ritual (1959, 1967), this article investigates how C4 negotiate potentially competing commercial, regulatory and moral requirements through processes of discretionary decision-making. Throughout, the article considers the extent to which these negotiations are presented through a series of ‘imaginings’ – of C4 and its audience – which serve to simultaneously guide and legitimate the decisions made. This manifestation of imaginings moves us beyond more blanket explanations of ‘branding’ and instead allows us to see the final programmes as the end product of a series of complex negotiations and interactions between C4 and those multiple external parties significant to the workings of their organization. The insights gleaned from this case study are important beyond the workings of C4 because they help elucidate how all institutions and organizations may view, organize and justify their practices (to both themselves and others) within the perceived constraints in which they operate