1,423 research outputs found

    Patients as researchers - innovative experiences in UK National Health Service research

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    Consumer involvement is an established priority in UK health and social care service development and research. To date, little has been published describing the process of consumer involvement and assessing ‘consumers’ contributions to research. This paper provides a practical account of the effective incorporation of consumers into a research team, and outlines the extent to which they can enhance the research cycle; from project development and conduct, through data analysis and interpretation, to dissemination. Salient points are illustrated using the example of their collaboration in a research project. Of particular note were consumers’ contributions to the development of an ethically enhanced, more robust project design, and enriched data interpretation, which may not have resulted had consumers not been an integral part of the research team

    Estimation of percentage points and the construction of tolerance limits

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    Estimation of percentage points and construction of tolerance limit

    Crypto collectibles, museum funding and openGLAM: Challenges, opportunities and the potential of non-fungible tokens (NFTs)

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    Non-fungible tokens (NFTs) make it technically possible for digital assets to be owned and traded, introducing the concept of scarcity in the digital realm for the first time. Resulting from this technical development, this paper asks the question, do they provide an opportunity for fundraising for galleries, libraries, archives and museums (GLAM), by selling ownership of digital copies of their collections? Although NFTs in their current format were first invented in 2017 as a means for game players to trade virtual goods, they reached the mainstream in 2021, when the auction house Christie’s held their first-ever sale exclusively for an NFT of a digital image, that was eventually sold for a record 69 million USD. The potential of NFTs to generate significant revenue for artists and museums by selling effectively a cryptographically signed copy of a digital image (similar to real-world limited editions, which are signed and numbered copies of a given artwork), has sparked the interest of the financially deprived museum and heritage sector with world-renowned institutions such as the Uffizi Gallery and the Hermitage Museum, having already employed NFTs in order to raise funds. Concerns surrounding the environmental impact of blockchain technology and the rise of malicious projects, exploiting previously digitised heritage content made available through OpenGLAM licensing, have attracted criticism over the speculative use of the technology. In this paper, we present the current state of affairs in relation to NFTs and the cultural heritage sector, identifying challenges, whilst highlighting opportunities that they create for revenue generation, in order to help address the ever-increasing financial challenges of galleries and museums

    Maximum Likelihood Estimation in Gaussian Chain Graph Models under the Alternative Markov Property

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    The AMP Markov property is a recently proposed alternative Markov property for chain graphs. In the case of continuous variables with a joint multivariate Gaussian distribution, it is the AMP rather than the earlier introduced LWF Markov property that is coherent with data-generation by natural block-recursive regressions. In this paper, we show that maximum likelihood estimates in Gaussian AMP chain graph models can be obtained by combining generalized least squares and iterative proportional fitting to an iterative algorithm. In an appendix, we give useful convergence results for iterative partial maximization algorithms that apply in particular to the described algorithm.Comment: 15 pages, article will appear in Scandinavian Journal of Statistic

    Souvenirs, salvage and storied things: remembering community

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    What I am talking about comes from a much larger set of projects with a number of collaborators so I will be ventriloquising along the way today. What effect does it have if we take that supply chain and value chain and take it even further, into the after life of things. And I am thinking about the Tales of Things of Electronic Memory. Lets extend the social biographies. Lets look at the movement in and out of the commodity phase. Not just ending as commodities and having use-value, but becoming commodities again then stopping being commodities again and so on. So this is a story that is also about circulation from stocks of objects. Things that we hold idling in our house, our wardrobes and things which are held in hiding by the state that we will come on to and many things that are circulated and how they made to circulate. A large part of the story is about things and about changing things in order to rekindle value. How do you take something which has no value let in it, no worth if you want to put it in those terms, and rekindle that, recreate worth from it? So this is dealing with consumption, not just consumption in terms of using, as context as Irene would says, but also as using up, consuming in that sense, finishing it. So I want to tell some stories about remainder objects; the things which are left over, or actually remainders of objects. What happens when the object themselves have got used up during consumption? And find their story map of object destruction, about actually using things until they have gone, until they have broken. So to continue that cheery theme of death and destruction, I thought I would just illustrate this in a few quotes in terms of things and objects. I will start with Robert Smithson’s take on this. The conceptual artist of the 1960s and 70s in the United States, with his comments: ‘separate forms, objects, shapes are mere convenient fictions. There is only an uncertain disintegrating order that transcends the limits of rational separations.” Now he does not acknowledge it, but basically he lifted that from Henri Bergson, who was summarsied by Bertrand Russell as being about being as flow: “separate things, beginnings and endings are mere convenient fictions: imaginary congealings of the stream” and of course we can take this back further to Heraclitus or Lucretius or if we want back to someone like Gautama Buddha's final words: “It came as if in all composite things, everything ends up breaking, everything ends up being destroyed.

    A Variant in a MicroRNA complementary site in the 3' UTR of the KIT oncogene increases risk of acral melanoma.

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    MicroRNAs (miRNAs) are small ∼22nt single stranded RNAs that negatively regulate protein expression by binding to partially complementary sequences in the 3' untranslated region (3' UTRs) of target gene messenger RNAs (mRNA). Recently, mutations have been identified in both miRNAs and target genes that disrupt regulatory relationships, contribute to oncogenesis and serve as biomarkers for cancer risk. KIT, an established oncogene with a multifaceted role in melanogenesis and melanoma pathogenesis, has recently been shown to be upregulated in some melanomas, and is also a target of the miRNA miR-221. Here, we describe a genetic variant in the 3' UTR of the KIT oncogene that correlates with a greater than fourfold increased risk of acral melanoma. This KIT variant results in a mismatch in the seed region of a miR-221 complementary site and reporter data suggests that this mismatch can result in increased expression of the KIT oncogene. Consistent with the hypothesis that this is a functional variant, KIT mRNA and protein levels are both increased in the majority of samples harboring the KIT variant. This work identifies a novel genetic marker for increased heritable risk of melanoma

    Gene expression profiling identifies activated growth factor signaling in poor prognosis (Luminal-B) estrogen receptor positive breast cancer

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    BACKGROUND: Within estrogen receptor-positive breast cancer (ER+ BC), the expression levels of proliferation-related genes can define two clinically distinct molecular subtypes. When treated with adjuvant tamoxifen, those ER+ BCs that are lowly proliferative have a good prognosis (luminal-A subtype), however the clinical outcome of those that are highly proliferative is poor (luminal-B subtype). METHODS: To investigate the biological basis for these observations, gene set enrichment analysis (GSEA) was performed using microarray data from 246 ER+ BC samples from women treated with adjuvant tamoxifen monotherapy. To create an in vitro model of growth factor (GF) signaling activation, MCF-7 cells were treated with heregulin (HRG), an HER3 ligand. RESULTS: We found that a gene set linked to GF signaling was significantly enriched in the luminal-B tumors, despite only 10% of samples over-expressing HER2 by immunohistochemistry. To determine the biological significance of this observation, MCF-7 cells were treated with HRG. These cells displayed phosphorylation of HER2/3 and downstream ERK and S6. Treatment with HRG overcame tamoxifen-induced cell cycle arrest with higher S-phase fraction and increased anchorage independent colony formation. Gene expression profiles of MCF-7 cells treated with HRG confirmed enrichment of the GF signaling gene set and a similar proliferative signature observed in human ER+ BCs resistant to tamoxifen. CONCLUSION: These data demonstrate that activation of GF signaling pathways, independent of HER2 over-expression, could be contributing to the poor prognosis of the luminal-B ER+ BC subtype.Journal Articleinfo:eu-repo/semantics/publishe
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