35 research outputs found

    Turbulence in Focus: Benchmarking Scaling Behavior of 3D Volumetric Super-Resolution with BLASTNet 2.0 Data

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    Analysis of compressible turbulent flows is essential for applications related to propulsion, energy generation, and the environment. Here, we present BLASTNet 2.0, a 2.2 TB network-of-datasets containing 744 full-domain samples from 34 high-fidelity direct numerical simulations, which addresses the current limited availability of 3D high-fidelity reacting and non-reacting compressible turbulent flow simulation data. With this data, we benchmark a total of 49 variations of five deep learning approaches for 3D super-resolution - which can be applied for improving scientific imaging, simulations, turbulence models, as well as in computer vision applications. We perform neural scaling analysis on these models to examine the performance of different machine learning (ML) approaches, including two scientific ML techniques. We demonstrate that (i) predictive performance can scale with model size and cost, (ii) architecture matters significantly, especially for smaller models, and (iii) the benefits of physics-based losses can persist with increasing model size. The outcomes of this benchmark study are anticipated to offer insights that can aid the design of 3D super-resolution models, especially for turbulence models, while this data is expected to foster ML methods for a broad range of flow physics applications. This data is publicly available with download links and browsing tools consolidated at https://blastnet.github.io.Comment: Accepted in Advances in Neural Information Processing Systems 36 (NeurIPS 2023). 55 pages, 21 figures. v2: Corrected co-author name. Keywords: Super-resolution, 3D, Neural Scaling, Physics-informed Loss, Computational Fluid Dynamics, Partial Differential Equations, Turbulent Reacting Flows, Direct Numerical Simulation, Fluid Mechanics, Combustio

    Advanced cancer patient preferences for receiving molecular profiling results

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    Objective: This study aimed to discern preferences for receiving somatic molecular profiling (MP) results in cancer patients who have given consent to undergo testing. Methods: We conducted a mixed‐methods study to explore patients’ views on which MP results they would like to receive and why. Advanced cancer patients (n=1299) completed questionnaires after giving consent to participate in a parent genomics study and undergoing MP. A subset of patients (n=20) participated in qualitative interviews. Results: Almost all (96%) participants were interested in receiving results which would direct cancer treatment (i.e. were actionable). A smaller majority wanted to access results which were not actionable (64%) or were variants of unknown significance (60%). Most (86%) were interested in finding out about germline findings, though not as a priority. Themes identified in interview data were: 1) Cancer is the focus; 2) Trust in clinicians; and 3) Respect for a right not to know. Conclusions: The majority of advanced cancer patients undergoing MP prioritised results which would lead to treatment options. They trusted their oncologists to help them navigate the results return process. While there was interest in knowing about other results, this was a lesser priority. Nevertheless, given high levels of interest in receiving all results, ethical aspects of not providing uninformative results requires further research, including a consideration of patient rationales for desiring this information and what health professionals can and should do to support patients in the absence of meaningful information being available. This article is protected by copyright. All rights reserved

    What is the prevalence of fear of cancer recurrence in cancer survivors and patients? A systematic review and individual participant data meta-analysis

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    This study was supported by the Dutch Cancer Society (KWF) grant number 10936.Objective Care for fear of cancer recurrence (FCR) is considered the most common unmet need among cancer survivors. Yet the prevalence of FCR and predisposing factors remain inconclusive. To support targeted care, we provide a comprehensive overview of the prevalence and severity of FCR among cancer survivors and patients, as measured using the short form of the validated Fear of Cancer Recurrence Inventory (FCRI-SF). We also report on associations between FCR and clinical and demographic characteristics. Methods This is a systematic review and individual participant data (IPD) meta-analysis on the prevalence of FCR. In the review, we included all studies that used the FCRI-SF with adult (≥18 years) cancer survivors and patients. Date of search: 7 February 2020. Risk of bias was assessed using the Joanna Briggs Institute critical appraisal tool. Results IPD were requested from 87 unique studies and provided for 46 studies comprising 11,226 participants from 13 countries. 9311 respondents were included for the main analyses. On the FCRI-SF (range 0–36), 58.8% of respondents scored ≥13, 45.1% scored ≥16 and 19.2% scored ≥22. FCR decreased with age and women reported more FCR than men. FCR was found across cancer types and continents and for all time periods since cancer diagnosis. Conclusions FCR affects a considerable number of cancer survivors and patients. It is therefore important that healthcare providers discuss this issue with their patients and provide treatment when needed. Further research is needed to investigate how best to prevent and treat FCR and to identify other factors associated with FCR. The protocol was prospectively registered (PROSPERO CRD42020142185).Publisher PDFPeer reviewe

    Mener un projet international

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    Internet, construction européenne, mondialisation… : notre horizon ne s'arrête plus à nos frontières. Du jumelage à la coopération décentralisée, les municipalités demandent à leurs services de participer à des projets à dimension internationale. Processus de Bologne, formation tout au long de la vie, internationalisation des études, les universités font elles aussi appel à leurs services pour les accompagner dans ces évolutions. C'est dans ce contexte que s'inscrit ce volume, avec l'ambition de fournir à tous les professionnels des bibliothèques des clés de compréhension de ces nouveaux enjeux ainsi que des exemples concrets d'actions de coopération soutenus par des apports méthodologiques. Comment travailler et partager avec des partenaires étrangers ? Quelles sont les étapes fondamentales d'une coopération : de la convention à l'évaluation ? Qui sont nos relais en France et à l'étranger pour de tels projets ? C'est à travers ces questions que s'organise l'ouvrage, en proposant des éléments de préparation pratiques pour mener ces actions internationales et les pérenniser. Coordonné par Raphaëlle Bats, conservateur chargée des relations internationales à l'enssib, et écrit par différents acteurs du terrain, l'ouvrage traite également de la mobilité des professionnels et des voyages d'étude, du bibliothécaire-formateur ou expert, d'action culturelle et de politique documentaire (du don des documents à l'avenir du patrimoine en Europe en passant par la lecture pour les enfants)

    In Pursuit of Certainty: Making Sense of Direct-to-Consumer Personal Genome Testing in Australia

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    Advances in genetics and genomics provide new and powerful ways for individuals to understand their past and predict their futures. These technologies are now available in the marketplace and are extensively promoted to consumers. Although some may see this as representative of the inevitable and valuable democratisation and dissemination of biomedical knowledge, it is not unproblematic. Importantly, there is often a discrepancy between consumer’s expectations of what personal genome tests may provide and the explanatory power that they find they have. In this thesis, I present findings from a mixed methods research project that explored Australian consumers’ beliefs, knowledge, expectations and experiences of direct-to-consumer personal genome testing (DTCPGT). This research involved an online public survey, in depth interviews with consumers of DTCPGT and an autoethnography. The results of this research reveal that while DTCPGT may have value, both for consumers and for society, this is contextually dependent. Importantly, seeking DTCPGT appears to be best understood as a process of ‘securitization.’ That is, an individual will seek genetic knowledge about their self through DTCPGT because they believe it will enable them to confirm ‘certainties’ about their life and to decrease ‘uncertainties’. The reality, however, is that DTCPGT often acts to increase uncertainty and compel further information seeking. In part this is because scientific/genetic knowledge is limited; because data always reveals uncertainty; and because we may place too much faith in the relevance and power of genetic information and do not recognise the importance of our social networks and life-stories
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