A one-equation turbulence transport model for high Reynolds number wall-bounded flows

A one-equation turbulence model that avoids the need for an algebraic length scale is derived from a simplified form of the standard k-epsilon model equations. After calibration based on well established properties of the flow over a flat plate, predictions of several other flows are compared with experiment. The preliminary results presented indicate that the model has predictive and numerical properties of sufficient interest to merit further investigation and refinement. The one-equation model is also analyzed numerically and robust solution methods are presented

Development of bio-inspired antifouling coatings

Biofouling is the accumulation of micro and macro organisms on a solid surface exposed to a marine environment. It cause a reduction of operational effectiveness of marine structures[1]. The process begins with the settlement of microorganisms on the surface demonstrated in figure 1, the microorganisms then produce Extracellular Polymeric Substances (EPS) forming a biofilm. Hydrophobic surfaces have been shown to inhibit biofouling and it has been noted that some strains of macroalgae use surface topography and leaching of antimicrobials to minimise biofouling

Development of the Motivational Interviewing Supervision and Training Scale

The movement to use empirically supported treatments has increased the need for researchers and supervisors to evaluate therapists’ adherence to and the quality with which they implement those interventions. Few empirically supported approaches exist for providing these types of evaluations. This is also true for motivational interviewing, an empirically supported intervention important in the addictions field. This study describes the development and psychometric evaluation of the Motivational Interviewing Supervision and Training Scale (MISTS), a measure intended for use in training and supervising therapists implementing motivational interviewing. Satisfactory interrater reliability was found (generalizability coefficient p2 = .79), and evidence was found supporting the convergent and discriminant validity of the MISTS. Recommendations for refinement of the measure and future research are discussed

The Contribution of Youth Sport Football to Weekend Physical Activity for Males Aged 9 to 16 Years: Variability Related to Age and Playing Position

The aims of this study were (1) to determine minutes of moderate-to-vigorous physical activity (PA) and vigorous PA accrued in youth sport football (also internationally referred to as soccer), and the contribution toward daily weekend moderate-to-vigorous PA and vigorous PA for males aged 9-16 years, and (2) to investigate variability in these outcomes related to age and playing position. One hundred and nine male grassroots footballers (Mean age = 11.98 ± 1.75 years) wore a GT3x accelerometer for 7 days. Weekend youth sport football participation and playing position were recorded. Youth sport football moderate-to-vigorous PA (M = 51.51 ± 17.99) and vigorous PA (M = 27.78 ± 14.55) contributed 60.27% and 70.68% toward daily weekend moderate-to-vigorous PA and vigorous PA, respectively. Overall, 36.70% of participants accumulated ≥60 min moderate-to-vigorous PA and 69.70% accrued &lt; 20 min of vigorous PA during youth sport. For participants aged 13 to16 years, youth sport football moderate-to-vigorous PA and vigorous PA were significantly higher, and contributed a greater amount toward daily weekend moderate-to-vigorous PA and vigorous PA than for participants aged 9-12 years (p = &gt;.01). Youth sport football is an important source of moderate-to-vigorous PA and vigorous PA at the weekend for male youth, and particularly for adolescents. Participation may offer opportunity for weekend engagement in vigorous PA toward health enhancing levels.</jats:p

Reducing Hospital Readmissions in New York State: A Simulation Analysis of Alternative Payment Incentives

Examines strategies to reduce hospital readmissions, including improving discharge processes, post-discharge support, and payment incentives. Estimates payers' and hospitals' cost savings from pay-for-performance and episode-based payments

Preparing multi-partite entanglement of photons and matter qubits

We show how to make event-ready multi-partite entanglement between qubits which may be encoded on photons or matter systems. Entangled states of matter systems, which can also act as single photon sources, can be generated using the entangling operation presented in quant-ph/0408040. We show how to entangle such sources with photon qubits, which may be encoded in the dual rail, polarization or time-bin degrees of freedom. We subsequently demonstrate how projective measurements of the matter qubits can be used to create entangled states of the photons alone. The state of the matter qubits is inherited by the generated photons. Since the entangling operation can be used to generate cluster states of matter qubits for quantum computing, our procedure enables us to create any (entangled) photonic quantum state that can be written as the outcome of a quantum computer.Comment: 10 pages, 4 figures; to appear in Journal of Optics

The Comparative Sociology Of Disabled Masculinities: A Bourdieusian Analysis Of Autobiographies By Men With Spinal Cord Injuries and Autism Spectrum Conditions

Sociological examinations of the intersection between disability and masculinity remain underdeveloped. While insightful analyses have considered the mechanisms through which impairments may interrupt socially valued performances of masculinity, a number of key limitations persist. Extant work within the field has not considered in sufficient depth and complexity: the comparative diversity of the gender/disability intersection; the role(s) of affective embodiment; and the generative interaction between distinct impairment forms and strategic enactments of masculinity. Employing forty published autobiographies from men with Spinal Cord Injuries and Autism Spectrum Conditions, this thesis uses Bourdieusian social theory to conceptualise the dynamic interaction between corporeality and overlapping experiences of privilege/exclusion. Spinal Cord Injuries are conceived of as radically disrupting possessed and anticipated gendered resources, alongside a relative stability of culturally normative, internalised prisms of masculine self-evaluation. Yet, narrators within this group negotiated the encompassing social environment with a knowing, gendered fluidity, through narrative practices of rugged heroism, the privileging of the cerebral, and participation within masculinising interdependencies. Autism Spectrum Conditions were, similarly, conceptualised as involving limited access to valued gendered resources; yet, a phenomenologically disjunctured embodiment of taken-for-granted meaning appeared to interrupt dialectics between internalised and externalised modes of self-evaluation. This group’s “alien” habitus could motivate scholastic forms of learning designed to develop “social skills”, often fostering gendered practices that were recognisably “masculine”, but lacking in interpersonal/cultural fluidity. The thesis concludes with a comparative examination of the two groups under consideration, contending that, alongside significant points of resonance, their experiences were tremendously distinctive in terms of gendered embodiment, temporality, the habitus, social/biomedical interventions, and the “feel for the game”