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- Thomas, HS, et al.
(author)
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- 2019
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swepub:Mat__t
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- Boudreau, Mathieu, et al.
(author)
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Repeat it without me: Crowdsourcing the T1 mapping common ground via the ISMRM reproducibility challenge
- 2024
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In: MAGNETIC RESONANCE IN MEDICINE. - 0740-3194 .- 1522-2594. ; 92:3, s. 1115-1127
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Journal article (peer-reviewed)abstract
- Purpose T-1 mapping is a widely used quantitative MRI technique, but its tissue-specific values remain inconsistent across protocols, sites, and vendors. The ISMRM Reproducible Research and Quantitative MR study groups jointly launched a challenge to assess the reproducibility of a well-established inversion-recovery T-1 mapping technique, using acquisition details from a seminal T-1 mapping paper on a standardized phantom and in human brains. Methods The challenge used the acquisition protocol from Barral et al. (2010). Researchers collected T-1 mapping data on the ISMRM/NIST phantom and/or in human brains. Data submission, pipeline development, and analysis were conducted using open-source platforms. Intersubmission and intrasubmission comparisons were performed. Results Eighteen submissions (39 phantom and 56 human datasets) on scanners by three MRI vendors were collected at 3 T (except one, at 0.35 T). The mean coefficient of variation was 6.1% for intersubmission phantom measurements, and 2.9% for intrasubmission measurements. For humans, the intersubmission/intrasubmission coefficient of variation was 5.9/3.2% in the genu and 16/6.9% in the cortex. An interactive dashboard for data visualization was also eveloped: https://rrsg2020.dashboards.neurolibre.org. Conclusion The T-1 intersubmission variability was twice as high as the intrasubmission variability in both phantoms and human brains, indicating that the acquisition details in the original paper were insufficient to reproduce a quantitative MRI protocol. This study reports the inherent uncertainty in T-1 measures across independent research groups, bringing us one step closer to a practical clinical baseline of T-1 variations in vivo.
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- Cumming, Graeme S., et al.
(author)
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Research priorities for the sustainability of coral-rich western Pacific seascapes
- 2023
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In: Regional Environmental Change. - 1436-3798 .- 1436-378X. ; 23:2
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Journal article (peer-reviewed)abstract
- Nearly a billion people depend on tropical seascapes. The need to ensure sustainable use of these vital areas is recognised, as one of 17 policy commitments made by world leaders, in Sustainable Development Goal (SDG) 14 (‘Life below Water’) of the United Nations. SDG 14 seeks to secure marine sustainability by 2030. In a time of increasing social-ecological unpredictability and risk, scientists and policymakers working towards SDG 14 in the Asia–Pacific region need to know: (1) How are seascapes changing? (2) What can global society do about these changes? and (3) How can science and society together achieve sustainable seascape futures? Through a horizon scan, we identified nine emerging research priorities that clarify potential research contributions to marine sustainability in locations with high coral reef abundance. They include research on seascape geological and biological evolution and adaptation; elucidating drivers and mechanisms of change; understanding how seascape functions and services are produced, and how people depend on them; costs, benefits, and trade-offs to people in changing seascapes; improving seascape technologies and practices; learning to govern and manage seascapes for all; sustainable use, justice, and human well-being; bridging communities and epistemologies for innovative, equitable, and scale-crossing solutions; and informing resilient seascape futures through modelling and synthesis. Researchers can contribute to the sustainability of tropical seascapes by co-developing transdisciplinary understandings of people and ecosystems, emphasising the importance of equity and justice, and improving knowledge of key cross-scale and cross-level processes, feedbacks, and thresholds.
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- Lützhöft, Margareta, 1964, et al.
(author)
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Information Environment, Fatigue and Culture in the Maritime Domain
- 2011
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In: Reviews of Human Factors and Ergonomics. ; , s. 280-322
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Book chapter (other academic/artistic)abstract
- Maritime shipping operates within a complex operational setting and incorporates many typesof workplaces and work roles. The maritime domain has been a bit slower than other complexdomains in its research and development of human factors and ergonomics application.The problem remains that the operator is continuously being excluded from the loop, whichincreases the probability of shipboard errors and accidents. This chapter begins by providinga general introduction to the maritime domain and its unique characteristics and is followedby a section on the information environment on the bridge. The section on the informationenvironment on the bridge highlights the importance of integrating the end user into thebridge system and how technology must provide intuitive information at the right level ofcomplexity at the right time. The main focus of this chapter is then split into two areas ofcurrent high significance: fatigue on board and maritime culture (also incorporating safetyculture issues). Fatigue on board is of major concern, and most studies indicate that a systemsapproach must be adopted. This approach should account for aspects such as the number ofpersonnel, trip length, frequency and duration of port visits, and shift planning. Within thearea of maritime culture, multiculturalism and the way it is managed on board ships, includingshipboard practices, affect safety. In the area of safety culture, three recommendations arecentral: (a) increase compliance with regulations, (b) implement a safety management system,and (c) implement a behavioral safety system. In general, this review indicates that more dataare needed on human-technology-organizational issues in the maritime domain.
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