Commercial Application of In-Space Assembly

In-Space assembly (ISA) expands the opportunities for cost effective emplacement of systems in space. Currently, spacecraft are launched into space and deploy into their operational configuration through a carefully choreographed sequence of operations. The deployment operation dictates the arrangement of the primary systems on the spacecraft, limiting the ability to take full advantage of launch vehicles volume and mass capability. ISA enables vastly different spacecraft architectures and emplacement scenarios to be achieved, including optimal launch configurations ranging from single launch and assembly to on-orbit aggregation of multiple launches at different orbital locations and times. The spacecraft can be visited at different orbital locations and times to effect expansion and maintenance of an operational capability. To date, the primary application of ISA has been in large programs funded by government organizations, such as the International Space Station. Recently, Space Systems Loral (SSL) led a study funded by the Defense Advanced Research Projects Agency (DARPA), called Dragonfly, to investigate the commercial applicability and economic advantages of ISA. In the study, it was shown that ISA enables SSL to double the capability of a commercial satellite system by taking advantage of alternate packaging approaches for the reflectors. The study included an ultra-light-weight robotic system, derived from Mars manipulator designs, to complete assembly of portions of the antenna system using a tool derived from DARPA orbital express and National Aeronautics and Space Administration (NASA) automated structural assembly experience. The mechanical connector that enables robotic ISA takes advantage of decades of development by NASA from the 1970's to 1980's during the Space Station Freedom program, the precursor to the ISS. The mechanical connector was originally designed for rapid astronaut assembly while also providing a high quality structural connection with linear load deflection response. The paper will discuss the business case for ISA, the general approach taken to exploit on-orbit assembly in the GEO communication satellite market, and the concept of operations associated with the ISA approach, thus laying the foundation for ISA to become an accepted operational approach for commercial in-space operations

Preventing obesity in infants: the growing healthy feasibility trial protocol

INTRODUCTION: Early childhood is an important period for establishing behaviours that will affect weight gain and health across the life course. Early feeding choices, including breast and/or formula, timing of introduction of solids, physical activity and electronic media use among infants and young children are considered likely determinants of childhood obesity. Parents play a primary role in shaping these behaviours through parental modelling, feeding styles, and the food and physical activity environments provided. Children from low socio-economic backgrounds have higher rates of obesity, making early intervention particularly important. However, such families are often more difficult to reach and may be less likely to participate in traditional programs that support healthy behaviours. Parents across all socio-demographic groups frequently access primary health care (PHC) services, including nurses in community health services and general medical practices, providing unparalleled opportunity for engagement to influence family behaviours. One emerging and promising area that might maximise engagement at a low cost is the provision of support for healthy parenting through electronic media such as the Internet or smart phones. The Growing healthy study explores the feasibility of delivering such support via primary health care services. METHODS: This paper describes the Growing healthy study, a non-randomised quasi experimental study examining the feasibility of an intervention delivered via a smartphone app (or website) for parents living in socioeconomically disadvantaged areas, for promoting infant feeding and parenting behaviours that promote healthy rather than excessive weight gain. Participants will be recruited via their primary health care practitioner and followed until their infant is 9 months old. Data will be collected via web-based questionnaires and the data collected inherently by the app itself. ETHICS AND DISSEMINATION: This study received approval from the University of Technology Sydney Ethics committee and will be disseminated via peer-reviewed publications and conference presentations

Assessment of the impact of the scanner-related factors on brain morphometry analysis with Brainvisa.

BACKGROUND: Brain morphometry is extensively used in cross-sectional studies. However, the difference in the estimated values of the morphometric measures between patients and healthy subjects may be small and hence overshadowed by the scanner-related variability, especially with multicentre and longitudinal studies. It is important therefore to investigate the variability and reliability of morphometric measurements between different scanners and different sessions of the same scanner. METHODS: We assessed the variability and reliability for the grey matter, white matter, cerebrospinal fluid and cerebral hemisphere volumes as well as the global sulcal index, sulcal surface and mean geodesic depth using Brainvisa. We used datasets obtained across multiple MR scanners at 1.5 T and 3 T from the same groups of 13 and 11 healthy volunteers, respectively. For each morphometric measure, we conducted ANOVA analysis and verified whether the estimated values were significantly different across different scanners or different sessions of the same scanner. The between-centre and between-visit reliabilities were estimated from their contribution to the total variance, using a random-effects ANOVA model. To estimate the main processes responsible for low reliability, the results of brain segmentation were compared to those obtained using FAST within FSL. RESULTS: In a considerable number of cases, the main effects of both centre and visit factors were found to be significant. Moreover, both between-centre and between-visit reliabilities ranged from poor to excellent for most morphometric measures. A comparison between segmentation using Brainvisa and FAST revealed that FAST improved the reliabilities for most cases, suggesting that morphometry could benefit from improving the bias correction. However, the results were still significantly different across different scanners or different visits. CONCLUSIONS: Our results confirm that for morphometry analysis with the current version of Brainvisa using data from multicentre or longitudinal studies, the scanner-related variability must be taken into account and where possible should be corrected for. We also suggest providing some flexibility to Brainvisa for a step-by-step analysis of the robustness of this package in terms of reproducibility of the results by allowing the bias corrected images to be imported from other packages and bias correction step be skipped, for example.RIGHTS : This article is licensed under the BioMed Central licence at http://www.biomedcentral.com/about/license which is similar to the 'Creative Commons Attribution Licence'. In brief you may : copy, distribute, and display the work; make derivative works; or make commercial use of the work - under the following conditions: the original author must be given credit; for any reuse or distribution, it must be made clear to others what the license terms of this work are

AM in Space: ISM and IRMA NASA Initiatives

No abstract availabl

The Uses of Stance in Media Production: Embodied Sociolinguistics and Beyond

While many conversation analysts, and scholars in related fields, have used video-recordings to study interaction, this study is one of a small but growing number that investigates video-recordings of the joint activities of media professionals working with, and on, video. It examines practices of media production that are, in their involvement with the visual and verbal qualities of video, both beyond talk and deeply shaped by talk. The article draws upon video recordings of the making of a feature-length documentary. In particular, it analyses a complex course of action where an editing team are reviewing their interview of the subject of the documentary, their footage is being intercut with existing reality TV footage of that same interviewee. The central contributions that the article makes are, firstly, to the sociolinguistics of mediatisation, through the identification of the workplace concerns of the members of the editing team, secondly showing how editing is accomplished, moment-by-moment, through the use of particular forms of embodied action and, finally, how the media themselves feature in the ordering of action. While this is professional work it sheds light on the video-mediated practices in contemporary culture, especially those found in social media where video makers carefully consider their editing of the perspective toward themselves and others

Exploring the barriers to accessing personal financial planning advice

Shifts in welfare policy over the last forty years towards a greater neo-liberal stance have resulted in citizens needing to take greater responsibility for their finances (Rowlingson 2000; Strauss 2008; Sherraden and Ansong 2016). This coupled with low levels of financial capability across the UK population and consumers trying to make informed decisions from this low knowledge base (Sandler 2002; FSA 2004, 2006; Thoreson 2007, 2008; Arthur 2016; Stillwell 2016) suggests a growing need to understand the barriers that consumers face regarding access to financial advice. This paper argues that barriers preventing access to financial advice are not yet adequately understood. To build understanding three variables are explored, namely knowledge, trust and affordability/cost that are shown to affect consumers’ ability to access regulated financial advice. From these variables emerged the ideas that financial advice needed to be considered the ‘subjective norm’ and that ‘trust heuristics’, as a route to advice had certain embedded risks. As part of the research process a ‘Financial Advice Belief Model’ was developed as a tool to explore these variables more deeply and help interested stakeholders better understand factors that create barriers and may prevent consumers from seeking effective financial advice. Addressing these factors, we use the case of the UK to illustrate possible ways forward and argue that the findings could apply in other developed country settings. Further, these three key variables affecting access to needed financial services should be a key consideration for the UK’s Money and Pensions Service as it looks to develop a wider focus on financial well-being as the core of its strategy for UK citizens in need of financial guidance

Immediate trends in Internet reporting

The Internet is increasingly used by companies to disseminate financial information. However, the extent to which the use of this new medium will change corporate reporting practice has received surprisingly little debate in the published literature. To widen the participation in the debate, this paper posits that the future of Internet-based financial reporting is contingent on technological and non-technological factors. This proposition is evaluated using the opinions of the immediate trends in online reporting obtained from seventeen UK experts in accounting and/or the Internet who responded to an open-ended questionnaire. These experts were drawn from academics, auditors, regulators, reporting companies and users of corporate reports. While the experts concur on some issues, they provide a range of different views in other areas. Some views are technology-driven, whereas others pay more attention to non-technological factors such as resistance to technological change, users' reluctance to read financial reports and the slow reaction of regulators. Some experts foresee minimum changes in financial reporting over the short term, while others adopt a more progressive or even radical perspective. This paper has synthesized these views into nine major categories which provide information on the role of the Internet in financial reporting. The results have important implications for all parties involved in financial reporting and also indicate avenues for further research.

A conceptual framework for investigating the impact of the Internet on corporate financial reporting

This paper develops a conceptual framework of the impact of the Internet on corporate financial reporting on the basis of the issues and concerns elicited through an open-ended questionnaire survey of 17 UK-based experts in the Internet/accounting. These experts were drawn from academics, accounting firms, business companies, regulators, and users of accounting information. The diverse views expressed by our experts enable us to construct a four dimensional framework on the nature of change in financial reporting (content, form or both), the role of the Internet (as problem solver, problem creator or both), the determinant of change (technology, non-technology, or both) and the pace of change (little or no change, progressive change and radical change). These dimensions and sub-dimensions are combined to form a ¿perspective surround¿ enclosing a conceptual matrix of 81 different possible scenarios. The framework provides a basis for mapping existing and future studies on Internet reporting and constructing scenarios of future Internet-based financial reporting