Open design and medical products: irreconcilable differences, or natural bedfellows?

This paper describes the first case study of a continuing practice-based PhD as a work-inprogress,exploring the benefits of open design in the conception (and development) of medical products. Described here is the first attempt to tackle some of the issues facing the implementation of open design in a field where a recognised move to ‘open’ working practices & innovation is needed. Presented are some initial results, and some analysis that (it is hoped) will provide an opportunity for discussion. There are moral and pragmatic reasons to include people in the design process, especially true for medical products-whatever their complexity. Some people cannot participate in traditional collaborative design workshops (through suppressed immune systems, immobility, etc) and open design presents an opportunity for those excluded to participate in the design process, such as those people with Cystic Fibrosis. This is a chronic genetic condition, affecting the internal organs and having a very great impact on a person’s quality of life; as one example, people who have Cystic Fibrosis are strongly discouraged from meeting together. Open design by its nature is a collaborative activity, and the work described here aims to prototype a wholly virtual meeting of people, and empower them to conceive and develop their own products based on their own lived experience of Cystic Fibrosis. The project involves the development of a community of people with Cystic Fibrosis, supported through tools and online workshops with a designer, within an Action Research methodology. It is expected that open design has a positive contribution to make in this field, despite the very real questions surrounding its implementation; and the transition of the designer’s role from production of artefacts to facilitating and nurturing design activity is explored in this work

Health products; designed with, not for, end users

This paper describes research in progress that aims to explore the role that open design could play in the development of medical products. Including people in the development process of medical products has been shown to have benefits to both producers and users but is not universally applied. There are multiple factors from a producer’s point of view as to why a collaborative development process is not used, but similarly there are some medical conditions that preclude a person’s involvement in collaborative group work. For example, people who have the chronic condition Cystic Fibrosis are excluded from traditional collaborative design sessions due to susceptibility to certain communicable diseases. Open design offers the opportunity for people normally excluded in collaborative design processes to not only be included, but also shape the direction of the enquiry. Through the use of social media, and other collaborative internet-enabled tools the dissemination and development of ideas can occur. This goes beyond the fundamental moral and pragmatic arguments for collaborative working, since the knowledge and experience of the people participating is harnessed and available to all. This process therefore bears the hallmarks of a truly emancipatory technique, compatible with the notion of human flourishing and that the concept of a person’s ‘health’ extends beyond a mere absence of illness. The research is based around a series of practical case studies within an Action Research framework, the first of which is outlined here, where artefacts will be produced using open design; drawing upon established methods using prototypes as research and trialing the combination of physical tools (e.g. 3D printing) and virtual meeting spaces to facilitate the design activity

Open design and medical products

This research details the use of Open Design to enable participation in the conceptualisation, design and development of medical products for those who are excluded by their chronic health condition. The research was directed according to the Action Research methodology outlined by Checkland & Holwell (1998); Action Research being highlighted by Archer (1995) as a method compatible for practice-led design research. Open design directed the design practice, which consisted of a long case study spanning 18 months from February 2012, through to July 2013. This case study, dubbed AIR involved the creation of a bespoke online social network, recruitment of people living with cystic fibrosis, and the facilitation of collaborative design work resulting in prototype medical devices based on the lived experience of the participants. The work involves research into design within health as the context for this research. In order to place design in this wider context, it has been tempting to adopt the mantle Evidence Based Design Evans, 2010) – however in this research the position of design as phronesis, in a similar manner to health practice (Montgomery, 2005) is adopted. This allows for an alignment of the work done in both fields, without the problematic associations with an evidence hierarchy (Gaver & Bowers, 2012; Holmes, Murray, Perron, & Rail, 2006). The contribution to knowledge is an Open Medical Products Methodology, consisting of the artefacts supporting the evidence of the methodology’s ability to foster genuine participation amongst those who are excluded from traditional participatory design. The artefacts constituting this submission are this thesis, the reflective log kept during the research (Appendix A on page 135), the prototypes from the collaborative research (Appendix B on page 212), and the online social network that contained the work (AIR1 ). The Open Medical Products Methodology is expected to be of interest primarily to designers of medical products, design management and policymakers- although Open Design as a product methodology has appeal to other sectors and the future work into standardisation, regulation, distributed manufacture and recruitment detailed at the conclusion of this thesis has application broader than the medical field

Standard deviation : standardization and quality control in the mash-up era

Standards touch many aspects of our lives, from purchasing to consuming, to maintaining product consistencies (e.g. ISO 9001). Standardization aids replicating: compliance, quality and durability to diffuse geographic areas, driving innovation by providing constraints (BSI). Historically, standardization was a cornerstone for commerce enabling traders to interact, trusting accurate measures, used in judging a product’s worth. Open Design utilizes Internet-accessible digital making platforms, for creating and disseminating ideas. The rise of Fabrication Laboratories and distributed digital manufacturing (e.g. domestic 3D printing) has increased accessibility of high-quality manufacture. Design agents as well as designers can create products; either for personal use from the bottom-up, or re-appropriate another maker’s solution. Reciprocity is key to the process. As such, in this paper we refer to design agents, rather than applying labels of “professional” or “user”. However, as design agents become enabled to produce complex artefacts, “objective validation” for shared blueprints quality, becomes imminent. For example, 3D printing is reviving DIY toy making, with materials that can degrade overtime, potentially presenting choking hazards. Due to this status quo, the authors are not presenting lawsuit opportunities, but preventative procedures whilst encouraging proliferation of design agent led Open Design. Regulatory requirements for sectors touched by “open phenomenon” are unprepared. How can maker communities, design agents and others lead the way in promoting ways of working that enable robust quality control in open environments? To answer this question, interviews with British Standards Institute (BSI) representatives were triangulated with design workshops. This participatory approach to knowledge creation was chosen due to its inherent compatibility with the theoretical underpinnings of Open Design. This paper presents models exploring “standards integration” for Open Design purposes, enabling design agents to create “compliant” outputs, to benefit all. We conclude that there are possible avenues for standardization, but that this must be tested in the field. #open design, #digital manufacture, #industry standard

Unintended consequences of invasive predator control in an Australian forest: overabundant wallabies and vegetation change

Over-abundance of native herbivores is a problem in many forests worldwide. The abundance of native macropod wallabies is extremely high at Booderee National Park (BNP) in south-eastern Australia. This has occurred because of the reduction of exotic predators through an intensive baiting program, coupled with the absence of other predators. The high density of wallabies at BNP may be inhibiting the recruitment of many plant species following fire-induced recruitment events. We experimentally examined the post-fire response of a range of plant species to browsing by wallabies in a forest heavily infested with the invasive species, bitou bush Chrysanthemoides monilifera. We recorded the abundance and size of a range of plant species in 18 unfenced (browsed) and 16 fenced (unbrowsed) plots. We found the abundance and size of bitou bush was suppressed in browsed plots compared to unbrowsed plots. Regenerating seedlings of the canopy or middle storey tree species Eucalyptus pilularis, Acacia implexa, Allocasuarina littoralis, Breynia oblongifolia and Banksia integrifolia were either smaller or fewer in number in grazed plots than treatment plots as were the vines Kennedia rubicunda, Glycine tabacina and Glycine clandestina. In contrast, the understorey fern, Pteridium esculentum increased in abundance in the browsed plots relative to unbrowsed plots probably because of reduced competition with more palatable angiosperms. Twelve months after plots were installed the community structure of the browsed and unbrowsed plots was significantly different (P = 0.023, Global R = 0.091). The relative abundance of C. monilifera and P. esculentum contributed most to the differences. We discuss the possible development of a low diversity bracken fern parkland in Booderee National Park through a trophic cascade, similar to that caused by overabundant deer in the northern hemisphere. We also discuss its implications for broad scale fox control in southern Australian forests.Funding was provided by Parks Australia, and the Australian Research Council

Strong field effects on emission line profiles: Kerr black holes and warped accretion disks

If an accretion disk around a black hole is illuminated by hard X-rays from non-thermal coronae, fluorescent iron lines will be emitted from the inner region of the accretion disk. The emission line profiles will show a variety of strong field effects, which may be used as a probe of the spin parameter of the black hole and the structure of the accretion disk. In this paper we generalize the previous relativistic line profile models by including both the black hole spinning effects and the non-axisymmetries of warped accretion disks. Our results show different features from the conventional calculations for either a flat disk around a Kerr black hole or a warped disk around a Schwarzschild black hole by presenting, at the same time, multiple peaks, rather long red tails and time variations of line profiles with the precession of the disk. We show disk images as seen by a distant observer, which are distorted by the strong gravity. Although we are primarily concerned with the iron K-shell lines in this paper, the calculation is general and is valid for any emission lines produced from a warped accretion disk around a black hole.Comment: 22 pages, 8 figures. Accepted for publication in Ap

Real-Time Beamforming Using High-Speed FPGAs at the Allen Telescope Array

The Allen Telescope Array (ATA) at the Hat Creek Radio Observatory (HCRO) is a wide‐field panchromatic radio telescope currently consisting of 42 offset‐Gregorian antennas each with a 6 m aperture, with plans to expand the array to 350 antennas. Through unique back‐end hardware, the ATA performs real‐time wideband beamforming with independent subarray capabilities and customizable beam shaping. The beamformers enable science observations requiring the full gain of the array, time domain (nonintegrated) output, and interference excision or orthogonal beamsets. In this paper we report on the design of this beamformer, including architecture and experimental results. Furthermore, we address some practical considerations in large‐N wideband beamformers implemented on field programmable gate array platforms, including device utilization, methods of calibration and control, and interchip synchronization

The Allen Telescope Array: The First Widefield, Panchromatic, Snapshot Radio Camera for Radio Astronomy and SETI

The first 42 elements of the Allen Telescope Array (ATA-42) are beginning to deliver data at the Hat Creek Radio Observatory in Northern California. Scientists and engineers are actively exploiting all of the flexibility designed into this innovative instrument for simultaneously conducting surveys of the astrophysical sky and conducting searches for distant technological civilizations. This paper summarizes the design elements of the ATA, the cost savings made possible by the use of COTS components, and the cost/performance trades that eventually enabled this first snapshot radio camera. The fundamental scientific program of this new telescope is varied and exciting; some of the first astronomical results will be discussed.Comment: Special Issue of Proceedings of the IEEE: "Advances in Radio Telescopes", Baars,J. Thompson,R., D'Addario, L., eds, 2009, in pres

Miscellany

Art Literature Roy F. Powell Creditshttps://digitalcommons.georgiasouthern.edu/miscell/1001/thumbnail.jp

The Allen Telescope Array Pi GHz Sky Survey I. Survey Description and Static Catalog Results for the Bootes Field

The Pi GHz Sky Survey (PiGSS) is a key project of the Allen Telescope Array. PiGSS is a 3.1 GHz survey of radio continuum emission in the extragalactic sky with an emphasis on synoptic observations that measure the static and time-variable properties of the sky. During the 2.5-year campaign, PiGSS will twice observe ~250,000 radio sources in the 10,000 deg^2 region of the sky with b > 30 deg to an rms sensitivity of ~1 mJy. Additionally, sub-regions of the sky will be observed multiple times to characterize variability on time scales of days to years. We present here observations of a 10 deg^2 region in the Bootes constellation overlapping the NOAO Deep Wide Field Survey field. The PiGSS image was constructed from 75 daily observations distributed over a 4-month period and has an rms flux density between 200 and 250 microJy. This represents a deeper image by a factor of 4 to 8 than we will achieve over the entire 10,000 deg^2. We provide flux densities, source sizes, and spectral indices for the 425 sources detected in the image. We identify ~100$ new flat spectrum radio sources; we project that when completed PiGSS will identify 10^4 flat spectrum sources. We identify one source that is a possible transient radio source. This survey provides new limits on faint radio transients and variables with characteristic durations of months.Comment: Accepted for publication in ApJ; revision submitted with extraneous figure remove